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kernel: update bcma and ssb to master-2012-10-18 from wireless-testing

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* update the flash driver for bcm47xx to use the stubs already in bcma
* do some misc enhancements to the flash drivers for bcm47xx

SVN-Revision: 33920
This commit is contained in:
Hauke Mehrtens 2012-10-25 14:33:47 +00:00
parent f911fb32fe
commit dca633f1c8
41 changed files with 4588 additions and 3563 deletions
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48
package/mac80211/patches/840-b43-brcmsmac-use-pcie-core-arry.patch Normal file
View file

@ -0,0 +1,48 @@
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 73730e9..7358ea2 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -4652,7 +4652,7 @@ static int b43_wireless_core_init(struct b43_wldev *dev)
switch (dev->dev->bus_type) {
#ifdef CONFIG_B43_BCMA
case B43_BUS_BCMA:
- bcma_core_pci_irq_ctl(&dev->dev->bdev->bus->drv_pci,
+ bcma_core_pci_irq_ctl(&dev->dev->bdev->bus->drv_pci[0],
dev->dev->bdev, true);
break;
#endif
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/aiutils.c b/drivers/net/wireless/brcm80211/brcmsmac/aiutils.c
index b89f127..de96290 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/aiutils.c
+++ b/drivers/net/wireless/brcm80211/brcmsmac/aiutils.c
@@ -692,7 +692,7 @@ void ai_pci_up(struct si_pub *sih)
sii = container_of(sih, struct si_info, pub);
if (sii->icbus->hosttype == BCMA_HOSTTYPE_PCI)
- bcma_core_pci_extend_L1timer(&sii->icbus->drv_pci, true);
+ bcma_core_pci_extend_L1timer(&sii->icbus->drv_pci[0], true);
}
/* Unconfigure and/or apply various WARs when going down */
@@ -703,7 +703,7 @@ void ai_pci_down(struct si_pub *sih)
sii = container_of(sih, struct si_info, pub);
if (sii->icbus->hosttype == BCMA_HOSTTYPE_PCI)
- bcma_core_pci_extend_L1timer(&sii->icbus->drv_pci, false);
+ bcma_core_pci_extend_L1timer(&sii->icbus->drv_pci[0], false);
}
/* Enable BT-COEX & Ex-PA for 4313 */
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/main.c b/drivers/net/wireless/brcm80211/brcmsmac/main.c
index 75086b3..565c15a 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/main.c
+++ b/drivers/net/wireless/brcm80211/brcmsmac/main.c
@@ -5077,7 +5077,7 @@ static int brcms_b_up_prep(struct brcms_hardware *wlc_hw)
* Configure pci/pcmcia here instead of in brcms_c_attach()
* to allow mfg hotswap: down, hotswap (chip power cycle), up.
*/
- bcma_core_pci_irq_ctl(&wlc_hw->d11core->bus->drv_pci, wlc_hw->d11core,
+ bcma_core_pci_irq_ctl(&wlc_hw->d11core->bus->drv_pci[0], wlc_hw->d11core,
true);
/*

129
target/linux/brcm47xx/patches-3.3/020-bcma-move-parallel-flash-into-a-union.patch
View file

@ -1,129 +0,0 @@
--- a/arch/mips/bcm47xx/nvram.c
+++ b/arch/mips/bcm47xx/nvram.c
@@ -50,6 +50,9 @@ static void early_nvram_init(void)
#ifdef CONFIG_BCM47XX_BCMA
case BCM47XX_BUS_TYPE_BCMA:
bcma_cc = &bcm47xx_bus.bcma.bus.drv_cc;
+ if (bcma_cc->flash_type != BCMA_PFLASH)
+ return;
+
base = bcma_cc->pflash.window;
lim = bcma_cc->pflash.window_size;
break;
--- a/drivers/bcma/driver_mips.c
+++ b/drivers/bcma/driver_mips.c
@@ -189,6 +189,7 @@ static void bcma_core_mips_flash_detect(
break;
case BCMA_CC_FLASHT_PARA:
bcma_info(bus, "found parallel flash.\n");
+ bus->drv_cc.flash_type = BCMA_PFLASH;
bus->drv_cc.pflash.window = 0x1c000000;
bus->drv_cc.pflash.window_size = 0x02000000;
--- a/include/linux/bcma/bcma_driver_chipcommon.h
+++ b/include/linux/bcma/bcma_driver_chipcommon.h
@@ -122,10 +122,68 @@
#define BCMA_CC_JCTL_EXT_EN 2 /* Enable external targets */
#define BCMA_CC_JCTL_EN 1 /* Enable Jtag master */
#define BCMA_CC_FLASHCTL 0x0040
+
+/* Start/busy bit in flashcontrol */
+#define BCMA_CC_FLASHCTL_OPCODE 0x000000ff
+#define BCMA_CC_FLASHCTL_ACTION 0x00000700
+#define BCMA_CC_FLASHCTL_CS_ACTIVE 0x00001000 /* Chip Select Active, rev >= 20 */
#define BCMA_CC_FLASHCTL_START 0x80000000
#define BCMA_CC_FLASHCTL_BUSY BCMA_CC_FLASHCTL_START
+
+/* flashcontrol action+opcodes for ST flashes */
+#define BCMA_CC_FLASHCTL_ST_WREN 0x0006 /* Write Enable */
+#define BCMA_CC_FLASHCTL_ST_WRDIS 0x0004 /* Write Disable */
+#define BCMA_CC_FLASHCTL_ST_RDSR 0x0105 /* Read Status Register */
+#define BCMA_CC_FLASHCTL_ST_WRSR 0x0101 /* Write Status Register */
+#define BCMA_CC_FLASHCTL_ST_READ 0x0303 /* Read Data Bytes */
+#define BCMA_CC_FLASHCTL_ST_PP 0x0302 /* Page Program */
+#define BCMA_CC_FLASHCTL_ST_SE 0x02d8 /* Sector Erase */
+#define BCMA_CC_FLASHCTL_ST_BE 0x00c7 /* Bulk Erase */
+#define BCMA_CC_FLASHCTL_ST_DP 0x00b9 /* Deep Power-down */
+#define BCMA_CC_FLASHCTL_ST_RES 0x03ab /* Read Electronic Signature */
+#define BCMA_CC_FLASHCTL_ST_CSA 0x1000 /* Keep chip select asserted */
+#define BCMA_CC_FLASHCTL_ST_SSE 0x0220 /* Sub-sector Erase */
+
+
+/* flashcontrol action+opcodes for Atmel flashes */
+#define BCMA_CC_FLASHCTL_AT_READ 0x07e8
+#define BCMA_CC_FLASHCTL_AT_PAGE_READ 0x07d2
+#define BCMA_CC_FLASHCTL_AT_BUF1_READ
+#define BCMA_CC_FLASHCTL_AT_BUF2_READ
+#define BCMA_CC_FLASHCTL_AT_STATUS 0x01d7
+#define BCMA_CC_FLASHCTL_AT_BUF1_WRITE 0x0384
+#define BCMA_CC_FLASHCTL_AT_BUF2_WRITE 0x0387
+#define BCMA_CC_FLASHCTL_AT_BUF1_ERASE_PROGRAM 0x0283
+#define BCMA_CC_FLASHCTL_AT_BUF2_ERASE_PROGRAM 0x0286
+#define BCMA_CC_FLASHCTL_AT_BUF1_PROGRAM 0x0288
+#define BCMA_CC_FLASHCTL_AT_BUF2_PROGRAM 0x0289
+#define BCMA_CC_FLASHCTL_AT_PAGE_ERASE 0x0281
+#define BCMA_CC_FLASHCTL_AT_BLOCK_ERASE 0x0250
+#define BCMA_CC_FLASHCTL_AT_BUF1_WRITE_ERASE_PROGRAM 0x0382
+#define BCMA_CC_FLASHCTL_AT_BUF2_WRITE_ERASE_PROGRAM 0x0385
+#define BCMA_CC_FLASHCTL_AT_BUF1_LOAD 0x0253
+#define BCMA_CC_FLASHCTL_AT_BUF2_LOAD 0x0255
+#define BCMA_CC_FLASHCTL_AT_BUF1_COMPARE 0x0260
+#define BCMA_CC_FLASHCTL_AT_BUF2_COMPARE 0x0261
+#define BCMA_CC_FLASHCTL_AT_BUF1_REPROGRAM 0x0258
+#define BCMA_CC_FLASHCTL_AT_BUF2_REPROGRAM 0x0259
+
#define BCMA_CC_FLASHADDR 0x0044
#define BCMA_CC_FLASHDATA 0x0048
+
+/* Status register bits for ST flashes */
+#define BCMA_CC_FLASHDATA_ST_WIP 0x01 /* Write In Progress */
+#define BCMA_CC_FLASHDATA_ST_WEL 0x02 /* Write Enable Latch */
+#define BCMA_CC_FLASHDATA_ST_BP_MASK 0x1c /* Block Protect */
+#define BCMA_CC_FLASHDATA_ST_BP_SHIFT 2
+#define BCMA_CC_FLASHDATA_ST_SRWD 0x80 /* Status Register Write Disable */
+
+/* Status register bits for Atmel flashes */
+#define BCMA_CC_FLASHDATA_AT_READY 0x80
+#define BCMA_CC_FLASHDATA_AT_MISMATCH 0x40
+#define BCMA_CC_FLASHDATA_AT_ID_MASK 0x38
+#define BCMA_CC_FLASHDATA_AT_ID_SHIFT 3
+
#define BCMA_CC_BCAST_ADDR 0x0050
#define BCMA_CC_BCAST_DATA 0x0054
#define BCMA_CC_GPIOPULLUP 0x0058 /* Rev >= 20 only */
@@ -360,6 +418,12 @@
/* 4313 Chip specific ChipControl register bits */
#define BCMA_CCTRL_4313_12MA_LED_DRIVE 0x00000007 /* 12 mA drive strengh for later 4313 */
+#define BCMA_FLASH2 0x1c000000 /* Flash Region 2 (region 1 shadowed here) */
+#define BCMA_FLASH2_SZ 0x02000000 /* Size of Flash Region 2 */
+#define BCMA_FLASH1 0x1fc00000 /* MIPS Flash Region 1 */
+#define BCMA_FLASH1_SZ 0x00400000 /* MIPS Size of Flash Region 1 */
+
+
/* Data for the PMU, if available.
* Check availability with ((struct bcma_chipcommon)->capabilities & BCMA_CC_CAP_PMU)
*/
@@ -369,6 +433,10 @@ struct bcma_chipcommon_pmu {
};
#ifdef CONFIG_BCMA_DRIVER_MIPS
+enum bcma_flash_type {
+ BCMA_PFLASH,
+};
+
struct bcma_pflash {
u8 buswidth;
u32 window;
@@ -394,7 +462,10 @@ struct bcma_drv_cc {
u16 fast_pwrup_delay;
struct bcma_chipcommon_pmu pmu;
#ifdef CONFIG_BCMA_DRIVER_MIPS
- struct bcma_pflash pflash;
+ enum bcma_flash_type flash_type;
+ union {
+ struct bcma_pflash pflash;
+ };
int nr_serial_ports;
struct bcma_serial_port serial_ports[4];

505
target/linux/brcm47xx/patches-3.3/021-bcma-add-serial-flash-support-to-bcma.patch
View file

@ -1,505 +0,0 @@
--- a/drivers/bcma/Kconfig
+++ b/drivers/bcma/Kconfig
@@ -38,6 +38,11 @@ config BCMA_HOST_SOC
bool
depends on BCMA_DRIVER_MIPS
+config BCMA_SFLASH
+ bool
+ depends on BCMA_DRIVER_MIPS
+ default y
+
config BCMA_DRIVER_MIPS
bool "BCMA Broadcom MIPS core driver"
depends on BCMA && MIPS
--- a/drivers/bcma/Makefile
+++ b/drivers/bcma/Makefile
@@ -1,5 +1,6 @@
bcma-y += main.o scan.o core.o sprom.o
bcma-y += driver_chipcommon.o driver_chipcommon_pmu.o
+bcma-$(CONFIG_BCMA_SFLASH) += driver_chipcommon_sflash.o
bcma-y += driver_pci.o
bcma-$(CONFIG_BCMA_DRIVER_PCI_HOSTMODE) += driver_pci_host.o
bcma-$(CONFIG_BCMA_DRIVER_MIPS) += driver_mips.o
--- a/drivers/bcma/bcma_private.h
+++ b/drivers/bcma/bcma_private.h
@@ -51,6 +51,11 @@ void bcma_chipco_serial_init(struct bcma
u32 bcma_pmu_alp_clock(struct bcma_drv_cc *cc);
u32 bcma_pmu_get_clockcpu(struct bcma_drv_cc *cc);
+#ifdef CONFIG_BCMA_SFLASH
+/* driver_chipcommon_sflash.c */
+int bcma_sflash_init(struct bcma_drv_cc *cc);
+#endif /* CONFIG_BCMA_SFLASH */
+
#ifdef CONFIG_BCMA_HOST_PCI
/* host_pci.c */
extern int __init bcma_host_pci_init(void);
--- /dev/null
+++ b/drivers/bcma/driver_chipcommon_sflash.c
@@ -0,0 +1,398 @@
+/*
+ * Broadcom SiliconBackplane chipcommon serial flash interface
+ *
+ * Copyright 2011, Jonas Gorski <jonas.gorski@gmail.com>
+ * Copyright 2011, 2012, Hauke Mehrtens <hauke@hauke-m.de>
+ * Copyright 2010, Broadcom Corporation
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/bcma/bcma.h>
+#include <linux/bcma/bcma_driver_chipcommon.h>
+#include <linux/delay.h>
+
+#include "bcma_private.h"
+
+#define NUM_RETRIES 3
+
+
+/* Issue a serial flash command */
+static inline void bcma_sflash_cmd(struct bcma_drv_cc *cc, u32 opcode)
+{
+ bcma_cc_write32(cc, BCMA_CC_FLASHCTL,
+ BCMA_CC_FLASHCTL_START | opcode);
+ while (bcma_cc_read32(cc, BCMA_CC_FLASHCTL) & BCMA_CC_FLASHCTL_BUSY)
+ ;
+}
+
+
+static inline void bcma_sflash_write_u8(struct bcma_drv_cc *cc,
+ u32 offset, u8 byte)
+{
+ bcma_cc_write32(cc, BCMA_CC_FLASHADDR, offset);
+ bcma_cc_write32(cc, BCMA_CC_FLASHDATA, byte);
+}
+
+/* Initialize serial flash access */
+int bcma_sflash_init(struct bcma_drv_cc *cc)
+{
+ u32 id, id2;
+
+ memset(&cc->sflash, 0, sizeof(struct bcma_sflash));
+
+ switch (cc->capabilities & BCMA_CC_CAP_FLASHT) {
+ case BCMA_CC_FLASHT_STSER:
+ /* Probe for ST chips */
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_DP);
+ bcma_cc_write32(cc, BCMA_CC_FLASHADDR, 0);
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_RES);
+ id = bcma_cc_read32(cc, BCMA_CC_FLASHDATA);
+ cc->sflash.blocksize = 64 * 1024;
+ switch (id) {
+ case 0x11:
+ /* ST M25P20 2 Mbit Serial Flash */
+ cc->sflash.numblocks = 4;
+ break;
+ case 0x12:
+ /* ST M25P40 4 Mbit Serial Flash */
+ cc->sflash.numblocks = 8;
+ break;
+ case 0x13:
+ /* ST M25P80 8 Mbit Serial Flash */
+ cc->sflash.numblocks = 16;
+ break;
+ case 0x14:
+ /* ST M25P16 16 Mbit Serial Flash */
+ cc->sflash.numblocks = 32;
+ break;
+ case 0x15:
+ /* ST M25P32 32 Mbit Serial Flash */
+ cc->sflash.numblocks = 64;
+ break;
+ case 0x16:
+ /* ST M25P64 64 Mbit Serial Flash */
+ cc->sflash.numblocks = 128;
+ break;
+ case 0x17:
+ /* ST M25FL128 128 Mbit Serial Flash */
+ cc->sflash.numblocks = 256;
+ break;
+ case 0xbf:
+ /* All of the following flashes are SST with
+ * 4KB subsectors. Others should be added but
+ * We'll have to revamp the way we identify them
+ * since RES is not eough to disambiguate them.
+ */
+ cc->sflash.blocksize = 4 * 1024;
+ bcma_cc_write32(cc, BCMA_CC_FLASHADDR, 1);
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_RES);
+ id2 = bcma_cc_read32(cc, BCMA_CC_FLASHDATA);
+ switch (id2) {
+ case 1:
+ /* SST25WF512 512 Kbit Serial Flash */
+ case 0x48:
+ /* SST25VF512 512 Kbit Serial Flash */
+ cc->sflash.numblocks = 16;
+ break;
+ case 2:
+ /* SST25WF010 1 Mbit Serial Flash */
+ case 0x49:
+ /* SST25VF010 1 Mbit Serial Flash */
+ cc->sflash.numblocks = 32;
+ break;
+ case 3:
+ /* SST25WF020 2 Mbit Serial Flash */
+ case 0x43:
+ /* SST25VF020 2 Mbit Serial Flash */
+ cc->sflash.numblocks = 64;
+ break;
+ case 4:
+ /* SST25WF040 4 Mbit Serial Flash */
+ case 0x44:
+ /* SST25VF040 4 Mbit Serial Flash */
+ case 0x8d:
+ /* SST25VF040B 4 Mbit Serial Flash */
+ cc->sflash.numblocks = 128;
+ break;
+ case 5:
+ /* SST25WF080 8 Mbit Serial Flash */
+ case 0x8e:
+ /* SST25VF080B 8 Mbit Serial Flash */
+ cc->sflash.numblocks = 256;
+ break;
+ case 0x41:
+ /* SST25VF016 16 Mbit Serial Flash */
+ cc->sflash.numblocks = 512;
+ break;
+ case 0x4a:
+ /* SST25VF032 32 Mbit Serial Flash */
+ cc->sflash.numblocks = 1024;
+ break;
+ case 0x4b:
+ /* SST25VF064 64 Mbit Serial Flash */
+ cc->sflash.numblocks = 2048;
+ break;
+ }
+ break;
+ }
+ break;
+
+ case BCMA_CC_FLASHT_ATSER:
+ /* Probe for Atmel chips */
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_AT_STATUS);
+ id = bcma_cc_read32(cc, BCMA_CC_FLASHDATA) & 0x3c;
+ switch (id) {
+ case 0xc:
+ /* Atmel AT45DB011 1Mbit Serial Flash */
+ cc->sflash.blocksize = 256;
+ cc->sflash.numblocks = 512;
+ break;
+ case 0x14:
+ /* Atmel AT45DB021 2Mbit Serial Flash */
+ cc->sflash.blocksize = 256;
+ cc->sflash.numblocks = 1024;
+ break;
+ case 0x1c:
+ /* Atmel AT45DB041 4Mbit Serial Flash */
+ cc->sflash.blocksize = 256;
+ cc->sflash.numblocks = 2048;
+ break;
+ case 0x24:
+ /* Atmel AT45DB081 8Mbit Serial Flash */
+ cc->sflash.blocksize = 256;
+ cc->sflash.numblocks = 4096;
+ break;
+ case 0x2c:
+ /* Atmel AT45DB161 16Mbit Serial Flash */
+ cc->sflash.blocksize = 512;
+ cc->sflash.numblocks = 4096;
+ break;
+ case 0x34:
+ /* Atmel AT45DB321 32Mbit Serial Flash */
+ cc->sflash.blocksize = 512;
+ cc->sflash.numblocks = 8192;
+ break;
+ case 0x3c:
+ /* Atmel AT45DB642 64Mbit Serial Flash */
+ cc->sflash.blocksize = 1024;
+ cc->sflash.numblocks = 8192;
+ break;
+ }
+ break;
+ }
+
+ cc->sflash.size = cc->sflash.blocksize * cc->sflash.numblocks;
+
+ return cc->sflash.size ? 0 : -ENODEV;
+}
+
+/* Read len bytes starting at offset into buf. Returns number of bytes read. */
+int bcma_sflash_read(struct bcma_drv_cc *cc, u32 offset, u32 len, u8 *buf)
+{
+ u8 *from, *to;
+ u32 cnt, i;
+
+ if (!len)
+ return 0;
+
+ if ((offset + len) > cc->sflash.size)
+ return -EINVAL;
+
+ if ((len >= 4) && (offset & 3))
+ cnt = 4 - (offset & 3);
+ else if ((len >= 4) && ((u32)buf & 3))
+ cnt = 4 - ((u32)buf & 3);
+ else
+ cnt = len;
+
+ from = (u8 *)KSEG0ADDR(BCMA_FLASH2 + offset);
+
+ to = (u8 *)buf;
+
+ if (cnt < 4) {
+ for (i = 0; i < cnt; i++) {
+ *to = readb(from);
+ from++;
+ to++;
+ }
+ return cnt;
+ }
+
+ while (cnt >= 4) {
+ *(u32 *)to = readl(from);
+ from += 4;
+ to += 4;
+ cnt -= 4;
+ }
+
+ return len - cnt;
+}
+
+/* Poll for command completion. Returns zero when complete. */
+int bcma_sflash_poll(struct bcma_drv_cc *cc, u32 offset)
+{
+ if (offset >= cc->sflash.size)
+ return -22;
+
+ switch (cc->capabilities & BCMA_CC_CAP_FLASHT) {
+ case BCMA_CC_FLASHT_STSER:
+ /* Check for ST Write In Progress bit */
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_RDSR);
+ return bcma_cc_read32(cc, BCMA_CC_FLASHDATA)
+ & BCMA_CC_FLASHDATA_ST_WIP;
+ case BCMA_CC_FLASHT_ATSER:
+ /* Check for Atmel Ready bit */
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_AT_STATUS);
+ return !(bcma_cc_read32(cc, BCMA_CC_FLASHDATA)
+ & BCMA_CC_FLASHDATA_AT_READY);
+ }
+
+ return 0;
+}
+
+
+static int sflash_st_write(struct bcma_drv_cc *cc, u32 offset, u32 len,
+ const u8 *buf)
+{
+ int written = 1;
+
+ /* Enable writes */
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_WREN);
+ bcma_sflash_write_u8(cc, offset, *buf++);
+ /* Issue a page program with CSA bit set */
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_CSA | BCMA_CC_FLASHCTL_ST_PP);
+ offset++;
+ len--;
+ while (len > 0) {
+ if ((offset & 255) == 0) {
+ /* Page boundary, poll droping cs and return */
+ bcma_cc_write32(cc, BCMA_CC_FLASHCTL, 0);
+ udelay(1);
+ if (!bcma_sflash_poll(cc, offset)) {
+ /* Flash rejected command */
+ return -EAGAIN;
+ }
+ return written;
+ } else {
+ /* Write single byte */
+ bcma_sflash_cmd(cc,
+ BCMA_CC_FLASHCTL_ST_CSA |
+ *buf++);
+ }
+ written++;
+ offset++;
+ len--;
+ }
+ /* All done, drop cs & poll */
+ bcma_cc_write32(cc, BCMA_CC_FLASHCTL, 0);
+ udelay(1);
+ if (!bcma_sflash_poll(cc, offset)) {
+ /* Flash rejected command */
+ return -EAGAIN;
+ }
+ return written;
+}
+
+static int sflash_at_write(struct bcma_drv_cc *cc, u32 offset, u32 len,
+ const u8 *buf)
+{
+ struct bcma_sflash *sfl = &cc->sflash;
+ u32 page, byte, mask;
+ int ret = 0;
+
+ mask = sfl->blocksize - 1;
+ page = (offset & ~mask) << 1;
+ byte = offset & mask;
+ /* Read main memory page into buffer 1 */
+ if (byte || (len < sfl->blocksize)) {
+ int i = 100;
+ bcma_cc_write32(cc, BCMA_CC_FLASHADDR, page);
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_AT_BUF1_LOAD);
+ /* 250 us for AT45DB321B */
+ while (i > 0 && bcma_sflash_poll(cc, offset)) {
+ udelay(10);
+ i--;
+ }
+ BUG_ON(!bcma_sflash_poll(cc, offset));
+ }
+ /* Write into buffer 1 */
+ for (ret = 0; (ret < (int)len) && (byte < sfl->blocksize); ret++) {
+ bcma_sflash_write_u8(cc, byte++, *buf++);
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_AT_BUF1_WRITE);
+ }
+ /* Write buffer 1 into main memory page */
+ bcma_cc_write32(cc, BCMA_CC_FLASHADDR, page);
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_AT_BUF1_PROGRAM);
+
+ return ret;
+}
+
+/* Write len bytes starting at offset into buf. Returns number of bytes
+ * written. Caller should poll for completion.
+ */
+int bcma_sflash_write(struct bcma_drv_cc *cc, u32 offset, u32 len,
+ const u8 *buf)
+{
+ struct bcma_sflash *sfl;
+ int ret = 0, tries = NUM_RETRIES;
+
+ if (!len)
+ return 0;
+
+ if ((offset + len) > cc->sflash.size)
+ return -EINVAL;
+
+ sfl = &cc->sflash;
+ switch (cc->capabilities & BCMA_CC_CAP_FLASHT) {
+ case BCMA_CC_FLASHT_STSER:
+ do {
+ ret = sflash_st_write(cc, offset, len, buf);
+ tries--;
+ } while (ret == -EAGAIN && tries > 0);
+
+ if (ret == -EAGAIN && tries == 0) {
+ bcma_info(cc->core->bus, "ST Flash rejected write\n");
+ ret = -EIO;
+ }
+ break;
+ case BCMA_CC_FLASHT_ATSER:
+ ret = sflash_at_write(cc, offset, len, buf);
+ break;
+ }
+
+ return ret;
+}
+
+/* Erase a region. Returns number of bytes scheduled for erasure.
+ * Caller should poll for completion.
+ */
+int bcma_sflash_erase(struct bcma_drv_cc *cc, u32 offset)
+{
+ struct bcma_sflash *sfl;
+
+ if (offset >= cc->sflash.size)
+ return -EINVAL;
+
+ sfl = &cc->sflash;
+ switch (cc->capabilities & BCMA_CC_CAP_FLASHT) {
+ case BCMA_CC_FLASHT_STSER:
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_WREN);
+ bcma_cc_write32(cc, BCMA_CC_FLASHADDR, offset);
+ /* Newer flashes have "sub-sectors" which can be erased independently
+ * with a new command: ST_SSE. The ST_SE command erases 64KB just as
+ * before.
+ */
+ if (sfl->blocksize < (64 * 1024))
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_SSE);
+ else
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_SE);
+ return sfl->blocksize;
+ case BCMA_CC_FLASHT_ATSER:
+ bcma_cc_write32(cc, BCMA_CC_FLASHADDR, offset << 1);
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_AT_PAGE_ERASE);
+ return sfl->blocksize;
+ }
+
+ return 0;
+}
--- a/drivers/bcma/driver_mips.c
+++ b/drivers/bcma/driver_mips.c
@@ -185,7 +185,13 @@ static void bcma_core_mips_flash_detect(
switch (bus->drv_cc.capabilities & BCMA_CC_CAP_FLASHT) {
case BCMA_CC_FLASHT_STSER:
case BCMA_CC_FLASHT_ATSER:
- bcma_err(bus, "Serial flash not supported.\n");
+#ifdef CONFIG_BCMA_SFLASH
+ bcma_info(bus, "found serial flash.\n");
+ bus->drv_cc.flash_type = BCMA_SFLASH;
+ bcma_sflash_init(&bus->drv_cc);
+#else
+ bcma_info(bus, "serial flash not supported.\n");
+#endif /* CONFIG_BCMA_SFLASH */
break;
case BCMA_CC_FLASHT_PARA:
bcma_info(bus, "found parallel flash.\n");
--- a/include/linux/bcma/bcma_driver_chipcommon.h
+++ b/include/linux/bcma/bcma_driver_chipcommon.h
@@ -435,6 +435,7 @@ struct bcma_chipcommon_pmu {
#ifdef CONFIG_BCMA_DRIVER_MIPS
enum bcma_flash_type {
BCMA_PFLASH,
+ BCMA_SFLASH,
};
struct bcma_pflash {
@@ -443,6 +444,14 @@ struct bcma_pflash {
u32 window_size;
};
+#ifdef CONFIG_BCMA_SFLASH
+struct bcma_sflash {
+ u32 blocksize; /* Block size */
+ u32 numblocks; /* Number of blocks */
+ u32 size; /* Total size in bytes */
+};
+#endif /* CONFIG_BCMA_SFLASH */
+
struct bcma_serial_port {
void *regs;
unsigned long clockspeed;
@@ -465,6 +474,9 @@ struct bcma_drv_cc {
enum bcma_flash_type flash_type;
union {
struct bcma_pflash pflash;
+#ifdef CONFIG_BCMA_SFLASH
+ struct bcma_sflash sflash;
+#endif /* CONFIG_BCMA_SFLASH */
};
int nr_serial_ports;
@@ -520,4 +532,14 @@ extern void bcma_chipco_regctl_maskset(s
u32 offset, u32 mask, u32 set);
extern void bcma_pmu_spuravoid_pllupdate(struct bcma_drv_cc *cc, int spuravoid);
+#ifdef CONFIG_BCMA_SFLASH
+/* Chipcommon sflash support. */
+int bcma_sflash_read(struct bcma_drv_cc *cc, u32 offset, u32 len,
+ u8 *buf);
+int bcma_sflash_poll(struct bcma_drv_cc *cc, u32 offset);
+int bcma_sflash_write(struct bcma_drv_cc *cc, u32 offset, u32 len,
+ const u8 *buf);
+int bcma_sflash_erase(struct bcma_drv_cc *cc, u32 offset);
+#endif /* CONFIG_BCMA_SFLASH */
+
#endif /* LINUX_BCMA_DRIVER_CC_H_ */

151
target/linux/brcm47xx/patches-3.3/022-ssb-move-flash-to-chipcommon.patch
View file

@ -1,151 +0,0 @@
--- a/arch/mips/bcm47xx/nvram.c
+++ b/arch/mips/bcm47xx/nvram.c
@@ -27,7 +27,7 @@ static char nvram_buf[NVRAM_SPACE];
static void early_nvram_init(void)
{
#ifdef CONFIG_BCM47XX_SSB
- struct ssb_mipscore *mcore_ssb;
+ struct ssb_chipcommon *ssb_cc;
#endif
#ifdef CONFIG_BCM47XX_BCMA
struct bcma_drv_cc *bcma_cc;
@@ -42,9 +42,9 @@ static void early_nvram_init(void)
switch (bcm47xx_bus_type) {
#ifdef CONFIG_BCM47XX_SSB
case BCM47XX_BUS_TYPE_SSB:
- mcore_ssb = &bcm47xx_bus.ssb.mipscore;
- base = mcore_ssb->flash_window;
- lim = mcore_ssb->flash_window_size;
+ ssb_cc = &bcm47xx_bus.ssb.chipco;
+ base = ssb_cc->pflash.window;
+ lim = ssb_cc->pflash.window_size;
break;
#endif
#ifdef CONFIG_BCM47XX_BCMA
--- a/arch/mips/bcm47xx/wgt634u.c
+++ b/arch/mips/bcm47xx/wgt634u.c
@@ -142,24 +142,24 @@ static int __init wgt634u_init(void)
if (et0mac[0] == 0x00 &&
((et0mac[1] == 0x09 && et0mac[2] == 0x5b) ||
(et0mac[1] == 0x0f && et0mac[2] == 0xb5))) {
- struct ssb_mipscore *mcore = &bcm47xx_bus.ssb.mipscore;
+ struct ssb_chipcommon *ccore = &bcm47xx_bus.ssb.chipco;
printk(KERN_INFO "WGT634U machine detected.\n");
if (!request_irq(gpio_to_irq(WGT634U_GPIO_RESET),
gpio_interrupt, IRQF_SHARED,
- "WGT634U GPIO", &bcm47xx_bus.ssb.chipco)) {
+ "WGT634U GPIO", ccore)) {
gpio_direction_input(WGT634U_GPIO_RESET);
gpio_intmask(WGT634U_GPIO_RESET, 1);
- ssb_chipco_irq_mask(&bcm47xx_bus.ssb.chipco,
+ ssb_chipco_irq_mask(ccore,
SSB_CHIPCO_IRQ_GPIO,
SSB_CHIPCO_IRQ_GPIO);
}
- wgt634u_flash_data.width = mcore->flash_buswidth;
- wgt634u_flash_resource.start = mcore->flash_window;
- wgt634u_flash_resource.end = mcore->flash_window
- + mcore->flash_window_size
+ wgt634u_flash_data.width = ccore->pflash.buswidth;
+ wgt634u_flash_resource.start = ccore->pflash.window;
+ wgt634u_flash_resource.end = ccore->pflash.window
+ + ccore->pflash.window_size
- 1;
return platform_add_devices(wgt634u_devices,
ARRAY_SIZE(wgt634u_devices));
--- a/drivers/ssb/driver_mipscore.c
+++ b/drivers/ssb/driver_mipscore.c
@@ -190,16 +190,34 @@ static void ssb_mips_flash_detect(struct
{
struct ssb_bus *bus = mcore->dev->bus;
- mcore->flash_buswidth = 2;
- if (bus->chipco.dev) {
- mcore->flash_window = 0x1c000000;
- mcore->flash_window_size = 0x02000000;
+ /* When there is no chipcommon on the bus there is 4MB flash */
+ if (!bus->chipco.dev) {
+ pr_info("found parallel flash.\n");
+ bus->chipco.flash_type = SSB_PFLASH;
+ bus->chipco.pflash.window = SSB_FLASH1;
+ bus->chipco.pflash.window_size = SSB_FLASH1_SZ;
+ bus->chipco.pflash.buswidth = 2;
+ return;
+ }
+
+ switch (bus->chipco.capabilities & SSB_CHIPCO_CAP_FLASHT) {
+ case SSB_CHIPCO_FLASHT_STSER:
+ case SSB_CHIPCO_FLASHT_ATSER:
+ pr_info("serial flash not supported.\n");
+ break;
+ case SSB_CHIPCO_FLASHT_PARA:
+ pr_info("found parallel flash.\n");
+ bus->chipco.flash_type = SSB_PFLASH;
+ bus->chipco.pflash.window = SSB_FLASH2;
+ bus->chipco.pflash.window_size = SSB_FLASH2_SZ;
if ((ssb_read32(bus->chipco.dev, SSB_CHIPCO_FLASH_CFG)
- & SSB_CHIPCO_CFG_DS16) == 0)
- mcore->flash_buswidth = 1;
- } else {
- mcore->flash_window = 0x1fc00000;
- mcore->flash_window_size = 0x00400000;
+ & SSB_CHIPCO_CFG_DS16) == 0)
+ bus->chipco.pflash.buswidth = 1;
+ else
+ bus->chipco.pflash.buswidth = 2;
+ break;
+ default:
+ pr_err("flash not supported.\n");
}
}
--- a/include/linux/ssb/ssb_driver_chipcommon.h
+++ b/include/linux/ssb/ssb_driver_chipcommon.h
@@ -582,6 +582,18 @@ struct ssb_chipcommon_pmu {
u32 crystalfreq; /* The active crystal frequency (in kHz) */
};
+#ifdef CONFIG_SSB_DRIVER_MIPS
+enum ssb_flash_type {
+ SSB_PFLASH,
+};
+
+struct ssb_pflash {
+ u8 buswidth;
+ u32 window;
+ u32 window_size;
+};
+#endif /* CONFIG_SSB_DRIVER_MIPS */
+
struct ssb_chipcommon {
struct ssb_device *dev;
u32 capabilities;
@@ -589,6 +601,12 @@ struct ssb_chipcommon {
/* Fast Powerup Delay constant */
u16 fast_pwrup_delay;
struct ssb_chipcommon_pmu pmu;
+#ifdef CONFIG_SSB_DRIVER_MIPS
+ enum ssb_flash_type flash_type;
+ union {
+ struct ssb_pflash pflash;
+ };
+#endif /* CONFIG_SSB_DRIVER_MIPS */
};
static inline bool ssb_chipco_available(struct ssb_chipcommon *cc)
--- a/include/linux/ssb/ssb_driver_mips.h
+++ b/include/linux/ssb/ssb_driver_mips.h
@@ -19,10 +19,6 @@ struct ssb_mipscore {
int nr_serial_ports;
struct ssb_serial_port serial_ports[4];
-
- u8 flash_buswidth;
- u32 flash_window;
- u32 flash_window_size;
};
extern void ssb_mipscore_init(struct ssb_mipscore *mcore);

573
target/linux/brcm47xx/patches-3.3/023-ssb-add-serial-flash-support.patch
View file

@ -1,573 +0,0 @@
--- a/drivers/ssb/Kconfig
+++ b/drivers/ssb/Kconfig
@@ -137,6 +137,12 @@ config SSB_DRIVER_MIPS
If unsure, say N
+config SSB_SFLASH
+ bool
+ depends on SSB_DRIVER_MIPS
+ default y
+
+
# Assumption: We are on embedded, if we compile the MIPS core.
config SSB_EMBEDDED
bool
--- a/drivers/ssb/Makefile
+++ b/drivers/ssb/Makefile
@@ -11,6 +11,7 @@ ssb-$(CONFIG_SSB_SDIOHOST) += sdio.o
# built-in drivers
ssb-y += driver_chipcommon.o
ssb-y += driver_chipcommon_pmu.o
+ssb-$(CONFIG_SSB_SFLASH) += driver_chipcommon_sflash.o
ssb-$(CONFIG_SSB_DRIVER_MIPS) += driver_mipscore.o
ssb-$(CONFIG_SSB_DRIVER_EXTIF) += driver_extif.o
ssb-$(CONFIG_SSB_DRIVER_PCICORE) += driver_pcicore.o
--- /dev/null
+++ b/drivers/ssb/driver_chipcommon_sflash.c
@@ -0,0 +1,451 @@
+/*
+ * Broadcom SiliconBackplane chipcommon serial flash interface
+ *
+ * Copyright 2011, Jonas Gorski <jonas.gorski@gmail.com>
+ * Copyright 2011, 2012, Hauke Mehrtens <hauke@hauke-m.de>
+ * Copyright 2010, Broadcom Corporation
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/ssb/ssb.h>
+#include <linux/ssb/ssb_driver_chipcommon.h>
+#include <linux/delay.h>
+
+#include "ssb_private.h"
+
+#define NUM_RETRIES 3
+
+
+/* Issue a serial flash command */
+static inline void ssb_sflash_cmd(struct ssb_chipcommon *cc, u32 opcode)
+{
+ chipco_write32(cc, SSB_CHIPCO_FLASHCTL,
+ SSB_CHIPCO_FLASHCTL_START | opcode);
+ while (chipco_read32(cc, SSB_CHIPCO_FLASHCTL)
+ & SSB_CHIPCO_FLASHCTL_BUSY)
+ ;
+}
+
+
+static inline void ssb_sflash_write_u8(struct ssb_chipcommon *cc,
+ u32 offset, u8 byte)
+{
+ chipco_write32(cc, SSB_CHIPCO_FLASHADDR, offset);
+ chipco_write32(cc, SSB_CHIPCO_FLASHDATA, byte);
+}
+
+/* Initialize serial flash access */
+int ssb_sflash_init(struct ssb_chipcommon *cc)
+{
+ u32 id, id2;
+
+ memset(&cc->sflash, 0, sizeof(struct ssb_sflash));
+
+ switch (cc->capabilities & SSB_CHIPCO_CAP_FLASHT) {
+ case SSB_CHIPCO_FLASHT_STSER:
+ /* Probe for ST chips */
+ ssb_sflash_cmd(cc, SSB_CHIPCO_FLASHCTL_ST_DP);
+ chipco_write32(cc, SSB_CHIPCO_FLASHADDR, 0);
+ ssb_sflash_cmd(cc, SSB_CHIPCO_FLASHCTL_ST_RES);
+ id = chipco_read32(cc, SSB_CHIPCO_FLASHDATA);
+ cc->sflash.blocksize = 64 * 1024;
+ switch (id) {
+ case 0x11:
+ /* ST M25P20 2 Mbit Serial Flash */
+ cc->sflash.numblocks = 4;
+ break;
+ case 0x12:
+ /* ST M25P40 4 Mbit Serial Flash */
+ cc->sflash.numblocks = 8;
+ break;
+ case 0x13:
+ /* ST M25P80 8 Mbit Serial Flash */
+ cc->sflash.numblocks = 16;
+ break;
+ case 0x14:
+ /* ST M25P16 16 Mbit Serial Flash */
+ cc->sflash.numblocks = 32;
+ break;
+ case 0x15:
+ /* ST M25P32 32 Mbit Serial Flash */
+ cc->sflash.numblocks = 64;
+ break;
+ case 0x16:
+ /* ST M25P64 64 Mbit Serial Flash */
+ cc->sflash.numblocks = 128;
+ break;
+ case 0x17:
+ /* ST M25FL128 128 Mbit Serial Flash */
+ cc->sflash.numblocks = 256;
+ break;
+ case 0xbf:
+ /* All of the following flashes are SST with
+ * 4KB subsectors. Others should be added but
+ * We'll have to revamp the way we identify them
+ * since RES is not eough to disambiguate them.
+ */
+ cc->sflash.blocksize = 4 * 1024;
+ chipco_write32(cc, SSB_CHIPCO_FLASHADDR, 1);
+ ssb_sflash_cmd(cc, SSB_CHIPCO_FLASHCTL_ST_RES);
+ id2 = chipco_read32(cc, SSB_CHIPCO_FLASHDATA);
+ switch (id2) {
+ case 1:
+ /* SST25WF512 512 Kbit Serial Flash */
+ case 0x48:
+ /* SST25VF512 512 Kbit Serial Flash */
+ cc->sflash.numblocks = 16;
+ break;
+ case 2:
+ /* SST25WF010 1 Mbit Serial Flash */
+ case 0x49:
+ /* SST25VF010 1 Mbit Serial Flash */
+ cc->sflash.numblocks = 32;
+ break;
+ case 3:
+ /* SST25WF020 2 Mbit Serial Flash */
+ case 0x43:
+ /* SST25VF020 2 Mbit Serial Flash */
+ cc->sflash.numblocks = 64;
+ break;
+ case 4:
+ /* SST25WF040 4 Mbit Serial Flash */
+ case 0x44:
+ /* SST25VF040 4 Mbit Serial Flash */
+ case 0x8d:
+ /* SST25VF040B 4 Mbit Serial Flash */
+ cc->sflash.numblocks = 128;
+ break;
+ case 5:
+ /* SST25WF080 8 Mbit Serial Flash */
+ case 0x8e:
+ /* SST25VF080B 8 Mbit Serial Flash */
+ cc->sflash.numblocks = 256;
+ break;
+ case 0x41:
+ /* SST25VF016 16 Mbit Serial Flash */
+ cc->sflash.numblocks = 512;
+ break;
+ case 0x4a:
+ /* SST25VF032 32 Mbit Serial Flash */
+ cc->sflash.numblocks = 1024;
+ break;
+ case 0x4b:
+ /* SST25VF064 64 Mbit Serial Flash */
+ cc->sflash.numblocks = 2048;
+ break;
+ }
+ break;
+ }
+ break;
+
+ case SSB_CHIPCO_FLASHT_ATSER:
+ /* Probe for Atmel chips */
+ ssb_sflash_cmd(cc, SSB_CHIPCO_FLASHCTL_AT_STATUS);
+ id = chipco_read32(cc, SSB_CHIPCO_FLASHDATA) & 0x3c;
+ switch (id) {
+ case 0xc:
+ /* Atmel AT45DB011 1Mbit Serial Flash */
+ cc->sflash.blocksize = 256;
+ cc->sflash.numblocks = 512;
+ break;
+ case 0x14:
+ /* Atmel AT45DB021 2Mbit Serial Flash */
+ cc->sflash.blocksize = 256;
+ cc->sflash.numblocks = 1024;
+ break;
+ case 0x1c:
+ /* Atmel AT45DB041 4Mbit Serial Flash */
+ cc->sflash.blocksize = 256;
+ cc->sflash.numblocks = 2048;
+ break;
+ case 0x24:
+ /* Atmel AT45DB081 8Mbit Serial Flash */
+ cc->sflash.blocksize = 256;
+ cc->sflash.numblocks = 4096;
+ break;
+ case 0x2c:
+ /* Atmel AT45DB161 16Mbit Serial Flash */
+ cc->sflash.blocksize = 512;
+ cc->sflash.numblocks = 4096;
+ break;
+ case 0x34:
+ /* Atmel AT45DB321 32Mbit Serial Flash */
+ cc->sflash.blocksize = 512;
+ cc->sflash.numblocks = 8192;
+ break;
+ case 0x3c:
+ /* Atmel AT45DB642 64Mbit Serial Flash */
+ cc->sflash.blocksize = 1024;
+ cc->sflash.numblocks = 8192;
+ break;
+ }
+ break;
+ }
+
+ cc->sflash.size = cc->sflash.blocksize * cc->sflash.numblocks;
+
+ return cc->sflash.size ? 0 : -ENODEV;
+}
+
+/* Read len bytes starting at offset into buf. Returns number of bytes read. */
+int ssb_sflash_read(struct ssb_chipcommon *cc, u32 offset, u32 len, u8 *buf)
+{
+ u8 *from, *to;
+ u32 cnt, i;
+
+ if (!len)
+ return 0;
+
+ if ((offset + len) > cc->sflash.size)
+ return -EINVAL;
+
+ if ((len >= 4) && (offset & 3))
+ cnt = 4 - (offset & 3);
+ else if ((len >= 4) && ((u32)buf & 3))
+ cnt = 4 - ((u32)buf & 3);
+ else
+ cnt = len;
+
+
+ if (cc->dev->id.revision == 12)
+ from = (u8 *)KSEG1ADDR(SSB_FLASH2 + offset);
+ else
+ from = (u8 *)KSEG0ADDR(SSB_FLASH2 + offset);
+
+ to = (u8 *)buf;
+
+ if (cnt < 4) {
+ for (i = 0; i < cnt; i++) {
+ *to = readb(from);
+ from++;
+ to++;
+ }
+ return cnt;
+ }
+
+ while (cnt >= 4) {
+ *(u32 *)to = readl(from);
+ from += 4;
+ to += 4;
+ cnt -= 4;
+ }
+
+ return len - cnt;
+}
+
+/* Poll for command completion. Returns zero when complete. */
+int ssb_sflash_poll(struct ssb_chipcommon *cc, u32 offset)
+{
+ if (offset >= cc->sflash.size)
+ return -22;
+
+ switch (cc->capabilities & SSB_CHIPCO_CAP_FLASHT) {
+ case SSB_CHIPCO_FLASHT_STSER:
+ /* Check for ST Write In Progress bit */
+ ssb_sflash_cmd(cc, SSB_CHIPCO_FLASHCTL_ST_RDSR);
+ return chipco_read32(cc, SSB_CHIPCO_FLASHDATA)
+ & SSB_CHIPCO_FLASHSTA_ST_WIP;
+ case SSB_CHIPCO_FLASHT_ATSER:
+ /* Check for Atmel Ready bit */
+ ssb_sflash_cmd(cc, SSB_CHIPCO_FLASHCTL_AT_STATUS);
+ return !(chipco_read32(cc, SSB_CHIPCO_FLASHDATA)
+ & SSB_CHIPCO_FLASHSTA_AT_READY);
+ }
+
+ return 0;
+}
+
+
+static int sflash_st_write(struct ssb_chipcommon *cc, u32 offset, u32 len,
+ const u8 *buf)
+{
+ struct ssb_bus *bus = cc->dev->bus;
+ int ret = 0;
+ bool is4712b0 = (bus->chip_id == 0x4712) && (bus->chip_rev == 3);
+ u32 mask;
+
+ /* Enable writes */
+ ssb_sflash_cmd(cc, SSB_CHIPCO_FLASHCTL_ST_WREN);
+ if (is4712b0) {
+ mask = 1 << 14;
+ ssb_sflash_write_u8(cc, offset, *buf++);
+ /* Set chip select */
+ chipco_set32(cc, SSB_CHIPCO_GPIOOUT, mask);
+ /* Issue a page program with the first byte */
+ ssb_sflash_cmd(cc, SSB_CHIPCO_FLASHCTL_ST_PP);
+ ret = 1;
+ offset++;
+ len--;
+ while (len > 0) {
+ if ((offset & 255) == 0) {
+ /* Page boundary, drop cs and return */
+ chipco_mask32(cc, SSB_CHIPCO_GPIOOUT, ~mask);
+ udelay(1);
+ if (!ssb_sflash_poll(cc, offset)) {
+ /* Flash rejected command */
+ return -EAGAIN;
+ }
+ return ret;
+ } else {
+ /* Write single byte */
+ ssb_sflash_cmd(cc, *buf++);
+ }
+ ret++;
+ offset++;
+ len--;
+ }
+ /* All done, drop cs */
+ chipco_mask32(cc, SSB_CHIPCO_GPIOOUT, ~mask);
+ udelay(1);
+ if (!ssb_sflash_poll(cc, offset)) {
+ /* Flash rejected command */
+ return -EAGAIN;
+ }
+ } else if (cc->dev->id.revision >= 20) {
+ ssb_sflash_write_u8(cc, offset, *buf++);
+ /* Issue a page program with CSA bit set */
+ ssb_sflash_cmd(cc,
+ SSB_CHIPCO_FLASHCTL_ST_CSA |
+ SSB_CHIPCO_FLASHCTL_ST_PP);
+ ret = 1;
+ offset++;
+ len--;
+ while (len > 0) {
+ if ((offset & 255) == 0) {
+ /* Page boundary, poll droping cs and return */
+ chipco_write32(cc, SSB_CHIPCO_FLASHCTL, 0);
+ udelay(1);
+ if (!ssb_sflash_poll(cc, offset)) {
+ /* Flash rejected command */
+ return -EAGAIN;
+ }
+ return ret;
+ } else {
+ /* Write single byte */
+ ssb_sflash_cmd(cc,
+ SSB_CHIPCO_FLASHCTL_ST_CSA |
+ *buf++);
+ }
+ ret++;
+ offset++;
+ len--;
+ }
+ /* All done, drop cs & poll */
+ chipco_write32(cc, SSB_CHIPCO_FLASHCTL, 0);
+ udelay(1);
+ if (!ssb_sflash_poll(cc, offset)) {
+ /* Flash rejected command */
+ return -EAGAIN;
+ }
+ } else {
+ ret = 1;
+ ssb_sflash_write_u8(cc, offset, *buf);
+ /* Page program */
+ ssb_sflash_cmd(cc, SSB_CHIPCO_FLASHCTL_ST_PP);
+ }
+ return ret;
+}
+
+static int sflash_at_write(struct ssb_chipcommon *cc, u32 offset, u32 len,
+ const u8 *buf)
+{
+ struct ssb_sflash *sfl = &cc->sflash;
+ u32 page, byte, mask;
+ int ret = 0;
+ mask = sfl->blocksize - 1;
+ page = (offset & ~mask) << 1;
+ byte = offset & mask;
+ /* Read main memory page into buffer 1 */
+ if (byte || (len < sfl->blocksize)) {
+ int i = 100;
+ chipco_write32(cc, SSB_CHIPCO_FLASHADDR, page);
+ ssb_sflash_cmd(cc, SSB_CHIPCO_FLASHCTL_AT_BUF1_LOAD);
+ /* 250 us for AT45DB321B */
+ while (i > 0 && ssb_sflash_poll(cc, offset)) {
+ udelay(10);
+ i--;
+ }
+ BUG_ON(!ssb_sflash_poll(cc, offset));
+ }
+ /* Write into buffer 1 */
+ for (ret = 0; (ret < (int)len) && (byte < sfl->blocksize); ret++) {
+ ssb_sflash_write_u8(cc, byte++, *buf++);
+ ssb_sflash_cmd(cc,
+ SSB_CHIPCO_FLASHCTL_AT_BUF1_WRITE);
+ }
+ /* Write buffer 1 into main memory page */
+ chipco_write32(cc, SSB_CHIPCO_FLASHADDR, page);
+ ssb_sflash_cmd(cc, SSB_CHIPCO_FLASHCTL_AT_BUF1_PROGRAM);
+
+ return ret;
+}
+
+/* Write len bytes starting at offset into buf. Returns number of bytes
+ * written. Caller should poll for completion.
+ */
+int ssb_sflash_write(struct ssb_chipcommon *cc, u32 offset, u32 len,
+ const u8 *buf)
+{
+ struct ssb_sflash *sfl;
+ int ret = 0, tries = NUM_RETRIES;
+
+ if (!len)
+ return 0;
+
+ if ((offset + len) > cc->sflash.size)
+ return -EINVAL;
+
+ sfl = &cc->sflash;
+ switch (cc->capabilities & SSB_CHIPCO_CAP_FLASHT) {
+ case SSB_CHIPCO_FLASHT_STSER:
+ do {
+ ret = sflash_st_write(cc, offset, len, buf);
+ tries--;
+ } while (ret == -EAGAIN && tries > 0);
+
+ if (ret == -EAGAIN && tries == 0) {
+ pr_info("ST Flash rejected write\n");
+ ret = -EIO;
+ }
+ break;
+ case SSB_CHIPCO_FLASHT_ATSER:
+ ret = sflash_at_write(cc, offset, len, buf);
+ break;
+ }
+
+ return ret;
+}
+
+/* Erase a region. Returns number of bytes scheduled for erasure.
+ * Caller should poll for completion.
+ */
+int ssb_sflash_erase(struct ssb_chipcommon *cc, u32 offset)
+{
+ struct ssb_sflash *sfl;
+
+ if (offset >= cc->sflash.size)
+ return -EINVAL;
+
+ sfl = &cc->sflash;
+ switch (cc->capabilities & SSB_CHIPCO_CAP_FLASHT) {
+ case SSB_CHIPCO_FLASHT_STSER:
+ ssb_sflash_cmd(cc, SSB_CHIPCO_FLASHCTL_ST_WREN);
+ chipco_write32(cc, SSB_CHIPCO_FLASHADDR, offset);
+ /* Newer flashes have "sub-sectors" which can be erased
+ * independently with a new command: ST_SSE. The ST_SE command
+ * erases 64KB just as before.
+ */
+ if (sfl->blocksize < (64 * 1024))
+ ssb_sflash_cmd(cc, SSB_CHIPCO_FLASHCTL_ST_SSE);
+ else
+ ssb_sflash_cmd(cc, SSB_CHIPCO_FLASHCTL_ST_SE);
+ return sfl->blocksize;
+ case SSB_CHIPCO_FLASHT_ATSER:
+ chipco_write32(cc, SSB_CHIPCO_FLASHADDR, offset << 1);
+ ssb_sflash_cmd(cc, SSB_CHIPCO_FLASHCTL_AT_PAGE_ERASE);
+ return sfl->blocksize;
+ }
+
+ return 0;
+}
--- a/drivers/ssb/driver_mipscore.c
+++ b/drivers/ssb/driver_mipscore.c
@@ -203,7 +203,13 @@ static void ssb_mips_flash_detect(struct
switch (bus->chipco.capabilities & SSB_CHIPCO_CAP_FLASHT) {
case SSB_CHIPCO_FLASHT_STSER:
case SSB_CHIPCO_FLASHT_ATSER:
+#ifdef CONFIG_SSB_SFLASH
+ pr_info("found serial flash.\n");
+ bus->chipco.flash_type = SSB_SFLASH;
+ ssb_sflash_init(&bus->chipco);
+#else
pr_info("serial flash not supported.\n");
+#endif /* CONFIG_SSB_SFLASH */
break;
case SSB_CHIPCO_FLASHT_PARA:
pr_info("found parallel flash.\n");
--- a/drivers/ssb/ssb_private.h
+++ b/drivers/ssb/ssb_private.h
@@ -192,6 +192,10 @@ extern int ssb_devices_freeze(struct ssb
extern int ssb_devices_thaw(struct ssb_freeze_context *ctx);
+#ifdef CONFIG_SSB_SFLASH
+/* driver_chipcommon_sflash.c */
+int ssb_sflash_init(struct ssb_chipcommon *cc);
+#endif /* CONFIG_SSB_SFLASH */
/* b43_pci_bridge.c */
#ifdef CONFIG_SSB_B43_PCI_BRIDGE
--- a/include/linux/ssb/ssb_driver_chipcommon.h
+++ b/include/linux/ssb/ssb_driver_chipcommon.h
@@ -503,8 +503,10 @@
#define SSB_CHIPCO_FLASHCTL_ST_PP 0x0302 /* Page Program */
#define SSB_CHIPCO_FLASHCTL_ST_SE 0x02D8 /* Sector Erase */
#define SSB_CHIPCO_FLASHCTL_ST_BE 0x00C7 /* Bulk Erase */
-#define SSB_CHIPCO_FLASHCTL_ST_DP 0x00B9 /* Deep Power-down */
-#define SSB_CHIPCO_FLASHCTL_ST_RSIG 0x03AB /* Read Electronic Signature */
+#define SSB_CHIPCO_FLASHCTL_ST_DP 0x00D9 /* Deep Power-down */
+#define SSB_CHIPCO_FLASHCTL_ST_RES 0x03AB /* Read Electronic Signature */
+#define SSB_CHIPCO_FLASHCTL_ST_CSA 0x1000 /* Keep chip select asserted */
+#define SSB_CHIPCO_FLASHCTL_ST_SSE 0x0220 /* Sub-sector Erase */
/* Status register bits for ST flashes */
#define SSB_CHIPCO_FLASHSTA_ST_WIP 0x01 /* Write In Progress */
@@ -585,6 +587,7 @@ struct ssb_chipcommon_pmu {
#ifdef CONFIG_SSB_DRIVER_MIPS
enum ssb_flash_type {
SSB_PFLASH,
+ SSB_SFLASH,
};
struct ssb_pflash {
@@ -592,6 +595,14 @@ struct ssb_pflash {
u32 window;
u32 window_size;
};
+
+#ifdef CONFIG_SSB_SFLASH
+struct ssb_sflash {
+ u32 blocksize; /* Block size */
+ u32 numblocks; /* Number of blocks */
+ u32 size; /* Total size in bytes */
+};
+#endif /* CONFIG_SSB_SFLASH */
#endif /* CONFIG_SSB_DRIVER_MIPS */
struct ssb_chipcommon {
@@ -605,6 +616,9 @@ struct ssb_chipcommon {
enum ssb_flash_type flash_type;
union {
struct ssb_pflash pflash;
+#ifdef CONFIG_SSB_SFLASH
+ struct ssb_sflash sflash;
+#endif /* CONFIG_SSB_SFLASH */
};
#endif /* CONFIG_SSB_DRIVER_MIPS */
};
@@ -666,6 +680,16 @@ extern int ssb_chipco_serial_init(struct
struct ssb_serial_port *ports);
#endif /* CONFIG_SSB_SERIAL */
+#ifdef CONFIG_SSB_SFLASH
+/* Chipcommon sflash support. */
+int ssb_sflash_read(struct ssb_chipcommon *cc, u32 offset, u32 len,
+ u8 *buf);
+int ssb_sflash_poll(struct ssb_chipcommon *cc, u32 offset);
+int ssb_sflash_write(struct ssb_chipcommon *cc, u32 offset, u32 len,
+ const u8 *buf);
+int ssb_sflash_erase(struct ssb_chipcommon *cc, u32 offset);
+#endif /* CONFIG_SSB_SFLASH */
+
/* PMU support */
extern void ssb_pmu_init(struct ssb_chipcommon *cc);

168
target/linux/brcm47xx/patches-3.3/024-brcm47xx-add-common-interface-for-sflash.patch
View file

@ -1,168 +0,0 @@
--- a/arch/mips/bcm47xx/Makefile
+++ b/arch/mips/bcm47xx/Makefile
@@ -3,5 +3,5 @@
# under Linux.
#
-obj-y += gpio.o irq.o nvram.o prom.o serial.o setup.o time.o sprom.o
+obj-y += gpio.o irq.o nvram.o prom.o serial.o setup.o time.o sprom.o bus.o
obj-$(CONFIG_BCM47XX_SSB) += wgt634u.o
--- /dev/null
+++ b/arch/mips/bcm47xx/bus.c
@@ -0,0 +1,86 @@
+/*
+ * BCM947xx nvram variable access
+ *
+ * Copyright (C) 2011 Hauke Mehrtens <hauke@hauke-m.de>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <bus.h>
+
+#ifdef CONFIG_BCM47XX_BCMA
+static int bcm47xx_sflash_bcma_read(struct bcm47xx_sflash *dev, u32 offset, u32 len, u8 *buf)
+{
+ return bcma_sflash_read(dev->bcc, offset, len, buf);
+}
+
+static int bcm47xx_sflash_bcma_poll(struct bcm47xx_sflash *dev, u32 offset)
+{
+ return bcma_sflash_poll(dev->bcc, offset);
+}
+
+static int bcm47xx_sflash_bcma_write(struct bcm47xx_sflash *dev, u32 offset, u32 len, const u8 *buf)
+{
+ return bcma_sflash_write(dev->bcc, offset, len, buf);
+}
+
+static int bcm47xx_sflash_bcma_erase(struct bcm47xx_sflash *dev, u32 offset)
+{
+ return bcma_sflash_erase(dev->bcc, offset);
+}
+
+void bcm47xx_sflash_struct_bcma_init(struct bcm47xx_sflash *sflash, struct bcma_drv_cc *bcc)
+{
+ sflash->sflash_type = BCM47XX_BUS_TYPE_BCMA;
+ sflash->bcc = bcc;
+
+ sflash->read = bcm47xx_sflash_bcma_read;
+ sflash->poll = bcm47xx_sflash_bcma_poll;
+ sflash->write = bcm47xx_sflash_bcma_write;
+ sflash->erase = bcm47xx_sflash_bcma_erase;
+
+ sflash->blocksize = bcc->sflash.blocksize;
+ sflash->numblocks = bcc->sflash.numblocks;
+ sflash->size = bcc->sflash.size;
+}
+#endif
+
+#ifdef CONFIG_BCM47XX_SSB
+static int bcm47xx_sflash_ssb_read(struct bcm47xx_sflash *dev, u32 offset, u32 len, u8 *buf)
+{
+ return ssb_sflash_read(dev->scc, offset, len, buf);
+}
+
+static int bcm47xx_sflash_ssb_poll(struct bcm47xx_sflash *dev, u32 offset)
+{
+ return ssb_sflash_poll(dev->scc, offset);
+}
+
+static int bcm47xx_sflash_ssb_write(struct bcm47xx_sflash *dev, u32 offset, u32 len, const u8 *buf)
+{
+ return ssb_sflash_write(dev->scc, offset, len, buf);
+}
+
+static int bcm47xx_sflash_ssb_erase(struct bcm47xx_sflash *dev, u32 offset)
+{
+ return ssb_sflash_erase(dev->scc, offset);
+}
+
+void bcm47xx_sflash_struct_ssb_init(struct bcm47xx_sflash *sflash, struct ssb_chipcommon *scc)
+{
+ sflash->sflash_type = BCM47XX_BUS_TYPE_SSB;
+ sflash->scc = scc;
+
+ sflash->read = bcm47xx_sflash_ssb_read;
+ sflash->poll = bcm47xx_sflash_ssb_poll;
+ sflash->write = bcm47xx_sflash_ssb_write;
+ sflash->erase = bcm47xx_sflash_ssb_erase;
+
+ sflash->blocksize = scc->sflash.blocksize;
+ sflash->numblocks = scc->sflash.numblocks;
+ sflash->size = scc->sflash.size;
+}
+#endif
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -43,6 +43,8 @@ EXPORT_SYMBOL(bcm47xx_bus);
enum bcm47xx_bus_type bcm47xx_bus_type;
EXPORT_SYMBOL(bcm47xx_bus_type);
+struct bcm47xx_sflash bcm47xx_sflash;
+
static void bcm47xx_machine_restart(char *command)
{
printk(KERN_ALERT "Please stand by while rebooting the system...\n");
@@ -137,6 +139,9 @@ static void __init bcm47xx_register_ssb(
if (err)
panic("Failed to initialize SSB bus (err %d)", err);
+ if (bcm47xx_bus.ssb.chipco.flash_type == SSB_SFLASH)
+ bcm47xx_sflash_struct_ssb_init(&bcm47xx_sflash, &bcm47xx_bus.ssb.chipco);
+
mcore = &bcm47xx_bus.ssb.mipscore;
if (nvram_getenv("kernel_args", buf, sizeof(buf)) >= 0) {
if (strstr(buf, "console=ttyS1")) {
@@ -195,6 +200,9 @@ static void __init bcm47xx_register_bcma
if (err)
panic("Failed to initialize BCMA bus (err %d)", err);
+ if (bcm47xx_bus.bcma.bus.drv_cc.flash_type == BCMA_SFLASH)
+ bcm47xx_sflash_struct_bcma_init(&bcm47xx_sflash, &bcm47xx_bus.bcma.bus.drv_cc);
+
bcm47xx_fill_bcma_boardinfo(&bcm47xx_bus.bcma.bus.boardinfo, NULL);
}
#endif
--- /dev/null
+++ b/arch/mips/include/asm/mach-bcm47xx/bus.h
@@ -0,0 +1,36 @@
+/*
+ * BCM947xx nvram variable access
+ *
+ * Copyright (C) 2011 Hauke Mehrtens <hauke@hauke-m.de>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/ssb/ssb.h>
+#include <linux/bcma/bcma.h>
+#include <bcm47xx.h>
+
+struct bcm47xx_sflash {
+ enum bcm47xx_bus_type sflash_type;
+ union {
+ struct ssb_chipcommon *scc;
+ struct bcma_drv_cc *bcc;
+ };
+
+ int (*read)(struct bcm47xx_sflash *dev, u32 offset, u32 len, u8 *buf);
+ int (*poll)(struct bcm47xx_sflash *dev, u32 offset);
+ int (*write)(struct bcm47xx_sflash *dev, u32 offset, u32 len, const u8 *buf);
+ int (*erase)(struct bcm47xx_sflash *dev, u32 offset);
+
+ u32 blocksize; /* Block size */
+ u32 numblocks; /* Number of blocks */
+ u32 size; /* Total size in bytes */
+};
+
+void bcm47xx_sflash_struct_bcma_init(struct bcm47xx_sflash *sflash, struct bcma_drv_cc *bcc);
+void bcm47xx_sflash_struct_ssb_init(struct bcm47xx_sflash *sflash, struct ssb_chipcommon *scc);
+
+extern struct bcm47xx_sflash bcm47xx_sflash;

136
target/linux/brcm47xx/patches-3.3/028-bcm47xx-register-flash-drivers.patch
View file

@ -1,136 +0,0 @@
--- a/arch/mips/bcm47xx/Kconfig
+++ b/arch/mips/bcm47xx/Kconfig
@@ -9,6 +9,7 @@ config BCM47XX_SSB
select SSB_EMBEDDED
select SSB_B43_PCI_BRIDGE if PCI
select SSB_PCICORE_HOSTMODE if PCI
+ select SSB_SFLASH
default y
help
Add support for old Broadcom BCM47xx boards with Sonics Silicon Backplane support.
@@ -23,6 +24,7 @@ config BCM47XX_BCMA
select BCMA_DRIVER_MIPS
select BCMA_HOST_PCI if PCI
select BCMA_DRIVER_PCI_HOSTMODE if PCI
+ select BCMA_SFLASH
default y
help
Add support for new Broadcom BCM47xx boards with Broadcom specific Advanced Microcontroller Bus.
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -31,10 +31,12 @@
#include <linux/ssb/ssb.h>
#include <linux/ssb/ssb_embedded.h>
#include <linux/bcma/bcma_soc.h>
+#include <linux/platform_device.h>
#include <asm/bootinfo.h>
#include <asm/reboot.h>
#include <asm/time.h>
#include <bcm47xx.h>
+#include <bus.h>
#include <asm/mach-bcm47xx/nvram.h>
union bcm47xx_bus bcm47xx_bus;
@@ -45,6 +47,32 @@ EXPORT_SYMBOL(bcm47xx_bus_type);
struct bcm47xx_sflash bcm47xx_sflash;
+static struct resource bcm47xx_pflash_resource = {
+ .name = "bcm47xx_pflash",
+ .start = 0,
+ .end = 0,
+ .flags = 0,
+};
+
+static struct platform_device bcm47xx_pflash_dev = {
+ .name = "bcm47xx_pflash",
+ .resource = &bcm47xx_pflash_resource,
+ .num_resources = 1,
+};
+
+static struct resource bcm47xx_sflash_resource = {
+ .name = "bcm47xx_sflash",
+ .start = 0,
+ .end = 0,
+ .flags = 0,
+};
+
+static struct platform_device bcm47xx_sflash_dev = {
+ .name = "bcm47xx_sflash",
+ .resource = &bcm47xx_sflash_resource,
+ .num_resources = 1,
+};
+
static void bcm47xx_machine_restart(char *command)
{
printk(KERN_ALERT "Please stand by while rebooting the system...\n");
@@ -156,6 +184,24 @@ static void __init bcm47xx_register_ssb(
}
}
}
+
+static int __init bcm47xx_register_flash_ssb(void)
+{
+ struct ssb_chipcommon *chipco = &bcm47xx_bus.ssb.chipco;
+
+ switch (chipco->flash_type) {
+ case SSB_PFLASH:
+ bcm47xx_pflash_resource.start = chipco->pflash.window;
+ bcm47xx_pflash_resource.end = chipco->pflash.window + chipco->pflash.window_size;
+ return platform_device_register(&bcm47xx_pflash_dev);
+ case SSB_SFLASH:
+ bcm47xx_sflash_dev.dev.platform_data = &bcm47xx_sflash;
+ return platform_device_register(&bcm47xx_sflash_dev);
+ default:
+ printk(KERN_ERR "No flash device found\n");
+ return -1;
+ }
+}
#endif
#ifdef CONFIG_BCM47XX_BCMA
@@ -205,6 +251,24 @@ static void __init bcm47xx_register_bcma
bcm47xx_fill_bcma_boardinfo(&bcm47xx_bus.bcma.bus.boardinfo, NULL);
}
+
+static int __init bcm47xx_register_flash_bcma(void)
+{
+ struct bcma_drv_cc *drv_cc = &bcm47xx_bus.bcma.bus.drv_cc;
+
+ switch (drv_cc->flash_type) {
+ case BCMA_PFLASH:
+ bcm47xx_pflash_resource.start = drv_cc->pflash.window;
+ bcm47xx_pflash_resource.end = drv_cc->pflash.window + drv_cc->pflash.window_size;
+ return platform_device_register(&bcm47xx_pflash_dev);
+ case BCMA_SFLASH:
+ bcm47xx_sflash_dev.dev.platform_data = &bcm47xx_sflash;
+ return platform_device_register(&bcm47xx_sflash_dev);
+ default:
+ printk(KERN_ERR "No flash device found\n");
+ return -1;
+ }
+}
#endif
void __init plat_mem_setup(void)
@@ -247,3 +311,19 @@ static int __init bcm47xx_register_bus_c
return 0;
}
device_initcall(bcm47xx_register_bus_complete);
+
+static int __init bcm47xx_register_flash(void)
+{
+ switch (bcm47xx_bus_type) {
+#ifdef CONFIG_BCM47XX_SSB
+ case BCM47XX_BUS_TYPE_SSB:
+ return bcm47xx_register_flash_ssb();
+#endif
+#ifdef CONFIG_BCM47XX_BCMA
+ case BCM47XX_BUS_TYPE_BCMA:
+ return bcm47xx_register_flash_bcma();
+#endif
+ }
+ return -1;
+}
+fs_initcall(bcm47xx_register_flash);

143
target/linux/brcm47xx/patches-3.3/029-bcm47xx-read-nvram-from-sflash.patch
View file

@ -1,143 +0,0 @@
--- a/arch/mips/bcm47xx/nvram.c
+++ b/arch/mips/bcm47xx/nvram.c
@@ -20,11 +20,12 @@
#include <asm/addrspace.h>
#include <asm/mach-bcm47xx/nvram.h>
#include <asm/mach-bcm47xx/bcm47xx.h>
+#include <asm/mach-bcm47xx/bus.h>
static char nvram_buf[NVRAM_SPACE];
/* Probe for NVRAM header */
-static void early_nvram_init(void)
+static void early_nvram_init_pflash(void)
{
#ifdef CONFIG_BCM47XX_SSB
struct ssb_chipcommon *ssb_cc;
@@ -50,9 +51,6 @@ static void early_nvram_init(void)
#ifdef CONFIG_BCM47XX_BCMA
case BCM47XX_BUS_TYPE_BCMA:
bcma_cc = &bcm47xx_bus.bcma.bus.drv_cc;
- if (bcma_cc->flash_type != BCMA_PFLASH)
- return;
-
base = bcma_cc->pflash.window;
lim = bcma_cc->pflash.window_size;
break;
@@ -86,7 +84,115 @@ found:
for (i = 0; i < sizeof(struct nvram_header); i += 4)
*dst++ = *src++;
for (; i < header->len && i < NVRAM_SPACE; i += 4)
- *dst++ = le32_to_cpu(*src++);
+ *dst++ = *src++;
+}
+
+static int find_nvram_size(void)
+{
+ struct nvram_header header;
+ int nvram_sizes[] = {NVRAM_SPACE, 0xF000, 2 * NVRAM_SPACE};
+ int i;
+ int ret;
+
+ for (i = 0; i < sizeof(nvram_sizes); i++) {
+ ret = bcm47xx_sflash.read(&bcm47xx_sflash, bcm47xx_sflash.size - nvram_sizes[i], sizeof(header), (u8 *)&header);
+ if (ret != sizeof(header))
+ return ret;
+ if (header.magic == NVRAM_HEADER)
+ return nvram_sizes[i];
+ }
+ return -1;
+}
+
+static int early_nvram_init_sflash(void)
+{
+ u32 off;
+ int ret;
+ char *dst;
+ int len;
+ int size;
+
+ /* check if the struct is already initilized */
+ if (!bcm47xx_sflash.size)
+ return -1;
+
+ size = find_nvram_size();
+ if (size <= 0)
+ return size;
+
+ len = NVRAM_SPACE;
+ dst = nvram_buf;
+ off = bcm47xx_sflash.size;
+ if (size > len) {
+ printk(KERN_WARNING "nvram on flash is bigger than the reserved"
+ " space in memory, will just copy the first %i bytes\n",
+ len);
+ }
+ while (len) {
+ ret = bcm47xx_sflash.read(&bcm47xx_sflash, off - size, len, dst);
+ if (ret < 0)
+ return ret;
+ off += ret;
+ len -= ret;
+ dst += ret;
+ }
+ return 0;
+}
+
+#ifdef CONFIG_BCM47XX_SSB
+static void early_nvram_init_ssb(void)
+{
+ int err;
+
+ switch (bcm47xx_bus.ssb.chipco.flash_type) {
+ case SSB_PFLASH:
+ early_nvram_init_pflash();
+ break;
+ case SSB_SFLASH:
+ err = early_nvram_init_sflash();
+ if (err < 0)
+ printk(KERN_WARNING "can not read from flash: %i\n", err);
+ break;
+ default:
+ printk(KERN_WARNING "unknow flash type\n");
+ }
+}
+#endif
+
+#ifdef CONFIG_BCM47XX_BCMA
+static void early_nvram_init_bcma(void)
+{
+ int err;
+
+ switch (bcm47xx_bus.bcma.bus.drv_cc.flash_type) {
+ case BCMA_PFLASH:
+ early_nvram_init_pflash();
+ break;
+ case BCMA_SFLASH:
+ err = early_nvram_init_sflash();
+ if (err < 0)
+ printk(KERN_WARNING "can not read from flash: %i\n", err);
+ break;
+ default:
+ printk(KERN_WARNING "unknow flash type\n");
+ }
+}
+#endif
+
+static void early_nvram_init(void)
+{
+ switch (bcm47xx_bus_type) {
+#ifdef CONFIG_BCM47XX_SSB
+ case BCM47XX_BUS_TYPE_SSB:
+ early_nvram_init_ssb();
+ break;
+#endif
+#ifdef CONFIG_BCM47XX_BCMA
+ case BCM47XX_BUS_TYPE_BCMA:
+ early_nvram_init_bcma();
+ break;
+#endif
+ }
}
int nvram_getenv(char *name, char *val, size_t val_len)

1146
target/linux/brcm47xx/patches-3.3/030-bcm47xx-bcma-nandflash.patch
View file

File diff suppressed because it is too large Load diff

0
target/linux/brcm47xx/patches-3.3/025-mtd-bcm47xx-add-bcm47xx-part-parser.patch → target/linux/brcm47xx/patches-3.3/050-mtd-add-bcm47xx-part-parser.patch
View file

48
target/linux/brcm47xx/patches-3.3/026-mtd-bcm47xx-add-parallel-flash-driver.patch → target/linux/brcm47xx/patches-3.3/051-mtd-add-parallel-flash-driver.patch
View file

@ -25,7 +25,7 @@
+obj-$(CONFIG_MTD_BCM47XX_PFLASH)+= bcm47xx-pflash.o
--- /dev/null
+++ b/drivers/mtd/maps/bcm47xx-pflash.c
@@ -0,0 +1,188 @@
@@ -0,0 +1,196 @@
+/*
+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+ * Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org>
@ -107,10 +107,10 @@
+
+static const char *probes[] = { "bcm47xx", NULL };
+
+static int bcm47xx_mtd_probe(struct platform_device *pdev)
+static int bcm47xx_pflash_probe(struct platform_device *pdev)
+{
+#ifdef CONFIG_BCM47XX_SSB
+ struct ssb_chipcommon *ssb_cc;
+ struct ssb_mipscore *ssb_mcore;
+#endif
+#ifdef CONFIG_BCM47XX_BCMA
+ struct bcma_drv_cc *bcma_cc;
@ -120,19 +120,19 @@
+ switch (bcm47xx_bus_type) {
+#ifdef CONFIG_BCM47XX_SSB
+ case BCM47XX_BUS_TYPE_SSB:
+ ssb_cc = &bcm47xx_bus.ssb.chipco;
+ if (ssb_cc->flash_type != SSB_PFLASH)
+ ssb_mcore = &bcm47xx_bus.ssb.mipscore;
+ if (!ssb_mcore->pflash.present)
+ return -ENODEV;
+
+ bcm47xx_map.phys = ssb_cc->pflash.window;
+ bcm47xx_map.size = ssb_cc->pflash.window_size;
+ bcm47xx_map.bankwidth = ssb_cc->pflash.buswidth;
+ bcm47xx_map.phys = ssb_mcore->pflash.window;
+ bcm47xx_map.size = ssb_mcore->pflash.window_size;
+ bcm47xx_map.bankwidth = ssb_mcore->pflash.buswidth;
+ break;
+#endif
+#ifdef CONFIG_BCM47XX_BCMA
+ case BCM47XX_BUS_TYPE_BCMA:
+ bcma_cc = &bcm47xx_bus.bcma.bus.drv_cc;
+ if (bcma_cc->flash_type != BCMA_PFLASH)
+ if (!bcma_cc->pflash.present)
+ return -ENODEV;
+
+ bcm47xx_map.phys = bcma_cc->pflash.window;
@ -179,7 +179,7 @@
+ return ret;
+}
+
+static int __devexit bcm47xx_mtd_remove(struct platform_device *pdev)
+static int __devexit bcm47xx_pflash_remove(struct platform_device *pdev)
+{
+ mtd_device_unregister(bcm47xx_mtd);
+ map_destroy(bcm47xx_mtd);
@ -187,30 +187,38 @@
+ return 0;
+}
+
+static struct platform_driver bcm47xx_mtd_driver = {
+ .remove = __devexit_p(bcm47xx_mtd_remove),
+ .driver = {
+ .name = "bcm47xx_pflash",
+static const struct platform_device_id bcm47xx_pflash_table[] = {
+ { "bcm47xx-pflash", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(platform, bcm47xx_pflash_table);
+
+static struct platform_driver bcm47xx_pflash_driver = {
+ .id_table = bcm47xx_pflash_table,
+ .probe = bcm47xx_pflash_probe,
+ .remove = __devexit_p(bcm47xx_pflash_remove),
+ .driver = {
+ .name = "bcm47xx-pflash",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init init_bcm47xx_mtd(void)
+static int __init init_bcm47xx_pflash(void)
+{
+ int ret = platform_driver_probe(&bcm47xx_mtd_driver, bcm47xx_mtd_probe);
+ int ret = platform_driver_register(&bcm47xx_pflash_driver);
+
+ if (ret)
+ pr_err("error registering platform driver: %i\n", ret);
+ return ret;
+}
+
+static void __exit exit_bcm47xx_mtd(void)
+static void __exit exit_bcm47xx_pflash(void)
+{
+ platform_driver_unregister(&bcm47xx_mtd_driver);
+ platform_driver_unregister(&bcm47xx_pflash_driver);
+}
+
+module_init(init_bcm47xx_mtd);
+module_exit(exit_bcm47xx_mtd);
+module_init(init_bcm47xx_pflash);
+module_exit(exit_bcm47xx_pflash);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("BCM47XX parallel flash driver");

60
target/linux/brcm47xx/patches-3.3/027-mtd-bcm47xx-add-serial-flash-driver.patch → target/linux/brcm47xx/patches-3.3/052-mtd-add-serial-flash-driver.patch
View file

@ -25,7 +25,7 @@
+obj-$(CONFIG_MTD_BCM47XX_SFLASH)+= bcm47xx-sflash.o
--- /dev/null
+++ b/drivers/mtd/maps/bcm47xx-sflash.c
@@ -0,0 +1,263 @@
@@ -0,0 +1,270 @@
+/*
+ * Broadcom SiliconBackplane chipcommon serial flash interface
+ *
@ -47,8 +47,7 @@
+#include <linux/errno.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <bcm47xx.h>
+#include <bus.h>
+#include <linux/mtd/bcm47xx_sflash.h>
+
+static int
+sflash_mtd_poll(struct bcm47xx_sflash *sflash, unsigned int offset, int timeout)
@ -262,17 +261,25 @@
+ return 0;
+}
+
+static const struct platform_device_id bcm47xx_sflash_table[] = {
+ { "bcm47xx-sflash", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(platform, bcm47xx_sflash_table);
+
+static struct platform_driver bcm47xx_sflash_driver = {
+ .remove = __devexit_p(bcm47xx_sflash_remove),
+ .driver = {
+ .name = "bcm47xx_sflash",
+ .id_table = bcm47xx_sflash_table,
+ .probe = bcm47xx_sflash_probe,
+ .remove = __devexit_p(bcm47xx_sflash_remove),
+ .driver = {
+ .name = "bcm47xx-sflash",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init init_bcm47xx_sflash(void)
+{
+ int ret = platform_driver_probe(&bcm47xx_sflash_driver, bcm47xx_sflash_probe);
+ int ret = platform_driver_register(&bcm47xx_sflash_driver);
+
+ if (ret)
+ pr_err("error registering platform driver: %i\n", ret);
@ -288,4 +295,41 @@
+module_exit(exit_bcm47xx_sflash);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("BCM47XX parallel flash driver");
+MODULE_DESCRIPTION("BCM47XX serial flash driver");
--- /dev/null
+++ b/include/linux/mtd/bcm47xx_sflash.h
@@ -0,0 +1,34 @@
+#ifndef LINUX_MTD_BCM47XX_SFLASH_H_
+#define LINUX_MTD_BCM47XX_SFLASH_H_
+
+#include <linux/mtd/mtd.h>
+
+enum bcm47xx_sflash_type {
+ BCM47XX_SFLASH_SSB,
+ BCM47XX_SFLASH_BCMA,
+};
+
+struct ssb_chipcommon;
+struct bcma_drv_cc;
+
+struct bcm47xx_sflash {
+ enum bcm47xx_sflash_type type;
+ union {
+ struct ssb_chipcommon *scc;
+ struct bcma_drv_cc *bcc;
+ };
+
+ bool present;
+ u16 numblocks;
+ u32 window;
+ u32 blocksize;
+ u32 size;
+
+ int (*read)(struct bcm47xx_sflash *dev, u32 offset, u32 len, u8 *buf);
+ int (*poll)(struct bcm47xx_sflash *dev, u32 offset);
+ int (*write)(struct bcm47xx_sflash *dev, u32 offset, u32 len, const u8 *buf);
+ int (*erase)(struct bcm47xx_sflash *dev, u32 offset);
+
+ struct mtd_info *mtd;
+};
+#endif /* LINUX_MTD_BCM47XX_SFLASH_H_ */

710
target/linux/brcm47xx/patches-3.3/053-mtd-add-nand-flash-driver.patch Normal file
View file

@ -0,0 +1,710 @@
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -536,4 +536,12 @@ config MTD_NAND_FSMC
Enables support for NAND Flash chips on the ST Microelectronics
Flexible Static Memory Controller (FSMC)
+config MTD_NAND_BCM47XX
+ tristate "bcm47xx nand flash support"
+ default y
+ depends on BCM47XX && BCMA_NFLASH
+ select MTD_PARTITIONS
+ help
+ Support for bcm47xx nand flash
+
endif # MTD_NAND
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
@@ -49,5 +49,6 @@ obj-$(CONFIG_MTD_NAND_MPC5121_NFC) += mp
obj-$(CONFIG_MTD_NAND_RICOH) += r852.o
obj-$(CONFIG_MTD_NAND_JZ4740) += jz4740_nand.o
obj-$(CONFIG_MTD_NAND_GPMI_NAND) += gpmi-nand/
+obj-$(CONFIG_MTD_NAND_BCM47XX) += bcm47xx_nand.o
nand-objs := nand_base.o nand_bbt.o
--- /dev/null
+++ b/drivers/mtd/nand/bcm47xx_nand.c
@@ -0,0 +1,528 @@
+/*
+ * BCMA nand flash interface
+ *
+ * Copyright (C) 2011-2012 Tathagata Das <tathagata@alumnux.com>
+ * Copyright 2010, Broadcom Corporation
+ *
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ */
+
+#define pr_fmt(fmt) "bcm47xx_nflash: " fmt
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/ioport.h>
+#include <linux/sched.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+#include <linux/errno.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <bcm47xx.h>
+#include <linux/cramfs_fs.h>
+#include <linux/romfs_fs.h>
+#include <linux/magic.h>
+#include <linux/byteorder/generic.h>
+#include <linux/mtd/bcm47xx_nand.h>
+#include <linux/mtd/nand.h>
+
+static int bcm47xx_nflash_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip);
+static int bcm47xx_nflash_erase(struct mtd_info *mtd, unsigned int addr, unsigned int len);
+
+/* Private Global variable */
+static u32 read_offset = 0;
+static u32 write_offset;
+
+static int
+nflash_mtd_poll(struct bcm47xx_nflash *nflash, unsigned int offset, int timeout)
+{
+ unsigned long now = jiffies;
+ int ret = 0;
+
+ for (;;) {
+ if (!bcma_nflash_poll(nflash->bcc)) {
+ ret = 0;
+ break;
+ }
+ if (time_after(jiffies, now + timeout)) {
+ pr_err("timeout while polling\n");
+ ret = -ETIMEDOUT;
+ break;
+ }
+ udelay(1);
+ }
+
+ return ret;
+}
+
+static int
+bcm47xx_nflash_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf)
+{
+ struct nand_chip *nchip = (struct nand_chip *)mtd->priv;
+ struct bcm47xx_nflash *nflash = (struct bcm47xx_nflash *)nchip->priv;
+ int bytes, ret = 0;
+ u32 extra = 0;
+ u8 *tmpbuf = NULL;
+ int size;
+ u32 offset, blocksize, mask, off;
+ u32 skip_bytes = 0;
+ int need_copy = 0;
+ u8 *ptr = NULL;
+
+ /* Check address range */
+ if (!len)
+ return 0;
+ if ((from + len) > mtd->size)
+ return -EINVAL;
+ offset = from;
+ if ((offset & (NFL_SECTOR_SIZE - 1)) != 0) {
+ extra = offset & (NFL_SECTOR_SIZE - 1);
+ offset -= extra;
+ len += extra;
+ need_copy = 1;
+ }
+ size = (len + (NFL_SECTOR_SIZE - 1)) & ~(NFL_SECTOR_SIZE - 1);
+ if (size != len) {
+ need_copy = 1;
+ }
+ if (!need_copy) {
+ ptr = buf;
+ } else {
+ tmpbuf = (u8 *)kmalloc(size, GFP_KERNEL);
+ ptr = tmpbuf;
+ }
+
+ blocksize = mtd->erasesize;
+ mask = blocksize - 1;
+ *retlen = 0;
+ while (len > 0) {
+ off = offset + skip_bytes;
+ if ((bytes = bcma_nflash_read(nflash->bcc, off, NFL_SECTOR_SIZE, ptr)) < 0) {
+ ret = bytes;
+ goto done;
+ }
+ if (bytes > len)
+ bytes = len;
+ offset += bytes;
+ len -= bytes;
+ ptr += bytes;
+ *retlen += bytes;
+ }
+
+done:
+ if (tmpbuf) {
+ *retlen -= extra;
+ memcpy(buf, tmpbuf+extra, *retlen);
+ kfree(tmpbuf);
+ }
+
+ return ret;
+}
+
+static void bcm47xx_nflash_write(struct mtd_info *mtd, u32 to, const u_char *buf, u32 len)
+{
+ struct nand_chip *nchip = (struct nand_chip *)mtd->priv;
+ struct bcm47xx_nflash *nflash = (struct bcm47xx_nflash *)nchip->priv;
+ u32 offset, blocksize, mask, off;
+ int read_len;
+ u32 copy_len, write_len, from;
+ u_char *write_ptr, *block;
+ const u_char *ptr;
+ int ret, bytes;
+
+ /* Check address range */
+ if (!len) {
+ pr_err("Error: Attempted to write too small data\n");
+ return;
+ }
+
+ if (!to)
+ return;
+
+ if ((to + len) > mtd->size) {
+ pr_err("Error: Attempted to write too large data\n");
+ return;
+ }
+
+ ptr = buf;
+ block = NULL;
+ offset = to;
+ blocksize = mtd->erasesize;
+ if (!(block = kmalloc(blocksize, GFP_KERNEL)))
+ return;
+ mask = blocksize - 1;
+ while (len) {
+ /* Align offset */
+ from = offset & ~mask;
+ /* Copy existing data into holding block if necessary */
+ if (((offset & (blocksize-1)) != 0) || (len < blocksize)) {
+ if ((ret = bcm47xx_nflash_read(mtd, from, blocksize, &read_len, block)))
+ goto done;
+ if (read_len != blocksize) {
+ ret = -EINVAL;
+ goto done;
+ }
+ }
+
+ /* Copy input data into holding block */
+ copy_len = min(len, blocksize - (offset & mask));
+ memcpy(block + (offset & mask), ptr, copy_len);
+ off = (uint) from;
+ /* Erase block */
+ if ((ret = bcm47xx_nflash_erase(mtd, off, blocksize)) < 0)
+ goto done;
+ /* Write holding block */
+ write_ptr = block;
+ write_len = blocksize;
+ if ((bytes = bcma_nflash_write(nflash->bcc, (uint)from, (uint)write_len, (u8 *) write_ptr)) != 0) {
+ ret = bytes;
+ goto done;
+ }
+ offset += copy_len;
+ if (len < copy_len)
+ len = 0;
+ else
+ len -= copy_len;
+ ptr += copy_len;
+ }
+
+done:
+ if (block)
+ kfree(block);
+ return;
+}
+
+static int bcm47xx_nflash_erase(struct mtd_info *mtd, unsigned int addr, unsigned int len)
+{
+ struct nand_chip *nchip = (struct nand_chip *)mtd->priv;
+ struct bcm47xx_nflash *nflash = (struct bcm47xx_nflash *)nchip->priv;
+
+ /* Check address range */
+ if (!len)
+ return 1;
+ if ((addr + len) > mtd->size)
+ return 1;
+
+ if (bcma_nflash_erase(nflash->bcc, addr)) {
+ pr_err("ERASE: nflash erase error\n");
+ return 1;
+ }
+
+ if (nflash_mtd_poll(nflash, addr, 10 * HZ)) {
+ pr_err("ERASE: nflash_mtd_poll error\n");
+ return 1;
+ }
+
+ return 0;
+}
+
+/* This functions is used by upper layer to checks if device is ready */
+static int bcm47xx_nflash_dev_ready(struct mtd_info *mtd)
+{
+ return 1;
+}
+
+/* Issue a nand flash command */
+static inline void bcm47xx_nflash_cmd(struct bcma_drv_cc *cc, u32 opcode)
+{
+ bcma_cc_write32(cc, NAND_CMD_START, opcode);
+ bcma_cc_read32(cc, NAND_CMD_START);
+}
+
+static void bcm47xx_nflash_command(struct mtd_info *mtd, unsigned command,
+ int column, int page_addr)
+{
+ struct nand_chip *nchip = (struct nand_chip *)mtd->priv;
+ struct bcm47xx_nflash *nflash = (struct bcm47xx_nflash *)nchip->priv;
+ u32 pagesize = 1 << nchip->page_shift;
+
+ /* Command pre-processing step */
+ switch (command) {
+ case NAND_CMD_RESET:
+ bcm47xx_nflash_cmd(nflash->bcc, NCMD_FLASH_RESET);
+ break;
+
+ case NAND_CMD_STATUS:
+ nflash->next_opcode = NAND_CMD_STATUS;
+ read_offset = 0;
+ write_offset = 0;
+ break;
+
+ case NAND_CMD_READ0:
+ read_offset = page_addr * pagesize;
+ nflash->next_opcode = 0;
+ break;
+
+ case NAND_CMD_READOOB:
+ read_offset = page_addr * pagesize;
+ nflash->next_opcode = 0;
+ break;
+
+ case NAND_CMD_SEQIN:
+ write_offset = page_addr * pagesize;
+ nflash->next_opcode = 0;
+ break;
+
+ case NAND_CMD_PAGEPROG:
+ nflash->next_opcode = 0;
+ break;
+
+ case NAND_CMD_READID:
+ read_offset = column;
+ bcm47xx_nflash_cmd(nflash->bcc, NCMD_ID_RD);
+ nflash->next_opcode = NAND_DEVID;
+ break;
+
+ case NAND_CMD_ERASE1:
+ nflash->next_opcode = 0;
+ bcm47xx_nflash_erase(mtd, page_addr*pagesize, pagesize);
+ break;
+
+ case NAND_CMD_ERASE2:
+ break;
+
+ case NAND_CMD_RNDOUT:
+ if (column > mtd->writesize)
+ read_offset += (column - mtd->writesize);
+ else
+ read_offset += column;
+ break;
+
+ default:
+ pr_err("COMMAND not supported %x\n", command);
+ nflash->next_opcode = 0;
+ break;
+ }
+}
+
+/* This function is used by upper layer for select and
+ * deselect of the NAND chip.
+ * It is dummy function. */
+static void bcm47xx_nflash_select_chip(struct mtd_info *mtd, int chip)
+{
+}
+
+static u_char bcm47xx_nflash_read_byte(struct mtd_info *mtd)
+{
+ struct nand_chip *nchip = mtd->priv;
+ struct bcm47xx_nflash *nflash = (struct bcm47xx_nflash *)nchip->priv;
+ uint8_t ret = 0;
+ static u32 id;
+
+ if (nflash->next_opcode == 0)
+ return ret;
+
+ if (nflash->next_opcode == NAND_CMD_STATUS)
+ return NAND_STATUS_WP;
+
+ id = bcma_cc_read32(nflash->bcc, nflash->next_opcode);
+
+ if (nflash->next_opcode == NAND_DEVID) {
+ ret = (id >> (8*read_offset)) & 0xff;
+ read_offset++;
+ }
+
+ return ret;
+}
+
+static uint16_t bcm47xx_nflash_read_word(struct mtd_info *mtd)
+{
+ loff_t from = read_offset;
+ uint16_t buf = 0;
+ int bytes;
+
+ bcm47xx_nflash_read(mtd, from, sizeof(buf), &bytes, (u_char *)&buf);
+ return buf;
+}
+
+/* Write data of length len to buffer buf. The data to be
+ * written on NAND Flash is first copied to RAMbuffer. After the Data Input
+ * Operation by the NFC, the data is written to NAND Flash */
+static void bcm47xx_nflash_write_buf(struct mtd_info *mtd,
+ const u_char *buf, int len)
+{
+ bcm47xx_nflash_write(mtd, write_offset, buf, len);
+}
+
+/* Read the data buffer from the NAND Flash. To read the data from NAND
+ * Flash first the data output cycle is initiated by the NFC, which copies
+ * the data to RAMbuffer. This data of length len is then copied to buffer buf.
+ */
+static void bcm47xx_nflash_read_buf(struct mtd_info *mtd, u_char *buf, int len)
+{
+ loff_t from = read_offset;
+ int bytes;
+
+ bcm47xx_nflash_read(mtd, from, len, &bytes, buf);
+}
+
+/* Used by the upper layer to verify the data in NAND Flash
+ * with the data in the buf. */
+static int bcm47xx_nflash_verify_buf(struct mtd_info *mtd,
+ const u_char *buf, int len)
+{
+ return -EFAULT;
+}
+
+static int bcm47xx_nflash_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
+{
+ struct nand_chip *nchip = mtd->priv;
+ struct bcm47xx_nflash *nflash = (struct bcm47xx_nflash *)nchip->priv;
+ int i;
+ uint off;
+ u32 pagesize = 1 << nchip->page_shift;
+ u32 blocksize = mtd->erasesize;
+
+ if ((ofs >> 20) >= nflash->size)
+ return 1;
+ if ((ofs & (blocksize - 1)) != 0)
+ return 1;
+
+ for (i = 0; i < 2; i++) {
+ off = ofs + pagesize;
+ bcma_cc_write32(nflash->bcc, NAND_CMD_ADDR, off);
+ bcm47xx_nflash_cmd(nflash->bcc, NCMD_SPARE_RD);
+ if (bcma_nflash_poll(nflash->bcc) < 0)
+ break;
+ if ((bcma_cc_read32(nflash->bcc, NAND_INTFC_STATUS) & NIST_SPARE_VALID) != NIST_SPARE_VALID)
+ return 1;
+ if ((bcma_cc_read32(nflash->bcc, NAND_SPARE_RD0) & 0xff) != 0xff)
+ return 1;
+ }
+ return 0;
+}
+
+const char *part_probes[] = { "cmdlinepart", NULL };
+static int bcm47xx_nflash_probe(struct platform_device *pdev)
+{
+ struct nand_chip *nchip;
+ struct mtd_info *mtd;
+ struct bcm47xx_nflash *nflash = dev_get_platdata(&pdev->dev);
+ int ret = 0;
+
+ mtd = kzalloc(sizeof(struct mtd_info), GFP_KERNEL);
+ if (!mtd){
+ ret = -ENOMEM;
+ goto err_out;
+ }
+
+ nchip = kzalloc(sizeof(struct nand_chip), GFP_KERNEL);
+ if (!nchip) {
+ ret = -ENOMEM;
+ goto err_free_mtd;
+ }
+
+ /* Register with MTD */
+ mtd->priv = nchip;
+ mtd->owner = THIS_MODULE;
+ mtd->dev.parent = &pdev->dev;
+
+ /* 50 us command delay time */
+ nchip->chip_delay = 50;
+
+ nchip->priv = nflash;
+ nchip->dev_ready = bcm47xx_nflash_dev_ready;
+ nchip->cmdfunc = bcm47xx_nflash_command;
+ nchip->select_chip = bcm47xx_nflash_select_chip;
+ nchip->read_byte = bcm47xx_nflash_read_byte;
+ nchip->read_word = bcm47xx_nflash_read_word;
+ nchip->write_buf = bcm47xx_nflash_write_buf;
+ nchip->read_buf = bcm47xx_nflash_read_buf;
+ nchip->verify_buf = bcm47xx_nflash_verify_buf;
+ nchip->block_bad = bcm47xx_nflash_block_bad;
+ nchip->options = NAND_SKIP_BBTSCAN;
+
+ /* Not known */
+ nchip->ecc.mode = NAND_ECC_NONE;
+
+ /* first scan to find the device and get the page size */
+ if (nand_scan_ident(mtd, 1, NULL)) {
+ pr_err("nand_scan_ident failed\n");
+ ret = -ENXIO;
+ goto err_free_nchip;
+ }
+ nflash->size = mtd->size;
+ nflash->pagesize = 1 << nchip->page_shift;
+ nflash->blocksize = mtd->erasesize;
+ nflash->mtd = mtd;
+
+ /* second phase scan */
+ if (nand_scan_tail(mtd)) {
+ pr_err("nand_scan_tail failed\n");
+ ret = -ENXIO;
+ goto err_free_nchip;
+ }
+
+ mtd->name = "bcm47xx-nflash";
+ mtd->flags |= MTD_WRITEABLE;
+ ret = mtd_device_parse_register(mtd, part_probes, NULL, NULL, 0);
+
+ if (ret) {
+ pr_err("mtd_device_register failed\n");
+ goto err_free_nchip;
+ }
+
+ return 0;
+
+err_free_nchip:
+ kfree(nchip);
+err_free_mtd:
+ kfree(mtd);
+err_out:
+ return ret;
+}
+
+static int __devexit bcm47xx_nflash_remove(struct platform_device *pdev)
+{
+ struct bcm47xx_nflash *nflash = dev_get_platdata(&pdev->dev);
+ struct mtd_info *mtd = nflash->mtd;
+
+ if (nflash) {
+ /* Release resources, unregister device */
+ nand_release(mtd);
+ kfree(mtd->priv);
+ kfree(mtd);
+ }
+
+ return 0;
+}
+
+static const struct platform_device_id bcm47xx_nflash_table[] = {
+ { "bcm47xx-nflash", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(platform, bcm47xx_nflash_table);
+
+static struct platform_driver bcm47xx_nflash_driver = {
+ .id_table = bcm47xx_nflash_table,
+ .probe = bcm47xx_nflash_probe,
+ .remove = __devexit_p(bcm47xx_nflash_remove),
+ .driver = {
+ .name = "bcm47xx-nflash",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init init_bcm47xx_nflash(void)
+{
+ int ret = platform_driver_register(&bcm47xx_nflash_driver);
+
+ if (ret)
+ pr_err("error registering platform driver: %i\n", ret);
+ return ret;
+}
+
+static void __exit exit_bcm47xx_nflash(void)
+{
+ platform_driver_unregister(&bcm47xx_nflash_driver);
+}
+
+module_init(init_bcm47xx_nflash);
+module_exit(exit_bcm47xx_nflash);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("BCM47XX NAND flash driver");
--- /dev/null
+++ b/include/linux/mtd/bcm47xx_nand.h
@@ -0,0 +1,152 @@
+/*
+ * Broadcom chipcommon NAND flash interface
+ *
+ * Copyright (C) 2011-2012 Tathagata Das <tathagata@alumnux.com>
+ * Copyright (C) 2009, Broadcom Corporation
+ * All Rights Reserved.
+ *
+ * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
+ * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
+ * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
+ *
+ */
+
+#ifndef LINUX_MTD_BCM47XX_NAND_H_
+#define LINUX_MTD_BCM47XX_NAND_H_
+
+#include <linux/mtd/mtd.h>
+
+#define NAND_FLASH1 0x1fc00000 /* MIPS Flash Region 1 */
+
+/* nand_cmd_start commands */
+#define NCMD_NULL 0
+#define NCMD_PAGE_RD 1
+#define NCMD_SPARE_RD 2
+#define NCMD_STATUS_RD 3
+#define NCMD_PAGE_PROG 4
+#define NCMD_SPARE_PROG 5
+#define NCMD_COPY_BACK 6
+#define NCMD_ID_RD 7
+#define NCMD_BLOCK_ERASE 8
+#define NCMD_FLASH_RESET 9
+#define NCMD_LOCK 0xa
+#define NCMD_LOCK_DOWN 0xb
+#define NCMD_UNLOCK 0xc
+#define NCMD_LOCK_STATUS 0xd
+
+/* nand_acc_control */
+#define NAC_RD_ECC_EN 0x80000000
+#define NAC_WR_ECC_EN 0x40000000
+#define NAC_RD_ECC_BLK0_EN 0x20000000
+#define NAC_FAST_PGM_RDIN 0x10000000
+#define NAC_RD_ERASED_ECC_EN 0x08000000
+#define NAC_PARTIAL_PAGE_EN 0x04000000
+#define NAC_PAGE_HIT_EN 0x01000000
+#define NAC_ECC_LEVEL0 0x00f00000
+#define NAC_ECC_LEVEL 0x000f0000
+#define NAC_SPARE_SIZE0 0x00003f00
+#define NAC_SPARE_SIZE 0x0000003f
+
+/* nand_config */
+#define NCF_CONFIG_LOCK 0x80000000
+#define NCF_BLOCK_SIZE_MASK 0x70000000
+#define NCF_BLOCK_SIZE_SHIFT 28
+#define NCF_DEVICE_SIZE_MASK 0x0f000000
+#define NCF_DEVICE_SIZE_SHIFT 24
+#define NCF_DEVICE_WIDTH 0x00800000
+#define NCF_PAGE_SIZE_MASK 0x00300000
+#define NCF_PAGE_SIZE_SHIFT 20
+#define NCF_FULL_ADDR_BYTES_MASK 0x00070000
+#define NCF_FULL_ADDR_BYTES_SHIFT 16
+#define NCF_COL_ADDR_BYTES_MASK 0x00007000
+#define NCF_COL_ADDR_BYTES_SHIFT 12
+#define NCF_BLK_ADDR_BYTES_MASK 0x00000700
+#define NCF_BLK_ADDR_BYTES_SHIFT 8
+
+/* nand_intfc_status */
+#define NIST_CTRL_READY 0x80000000
+#define NIST_FLASH_READY 0x40000000
+#define NIST_CACHE_VALID 0x20000000
+#define NIST_SPARE_VALID 0x10000000
+#define NIST_ERASED 0x08000000
+#define NIST_STATUS 0x000000ff
+
+#define NFL_SECTOR_SIZE 512
+
+#define NFL_TABLE_END 0xffffffff
+#define NFL_BOOT_SIZE 0x200000
+#define NFL_BOOT_OS_SIZE 0x2000000
+
+/* Nand flash MLC controller registers (corerev >= 38) */
+#define NAND_REVISION 0xC00
+#define NAND_CMD_START 0xC04
+#define NAND_CMD_ADDR_X 0xC08
+#define NAND_CMD_ADDR 0xC0C
+#define NAND_CMD_END_ADDR 0xC10
+#define NAND_CS_NAND_SELECT 0xC14
+#define NAND_CS_NAND_XOR 0xC18
+#define NAND_SPARE_RD0 0xC20
+#define NAND_SPARE_RD4 0xC24
+#define NAND_SPARE_RD8 0xC28
+#define NAND_SPARE_RD12 0xC2C
+#define NAND_SPARE_WR0 0xC30
+#define NAND_SPARE_WR4 0xC34
+#define NAND_SPARE_WR8 0xC38
+#define NAND_SPARE_WR12 0xC3C
+#define NAND_ACC_CONTROL 0xC40
+#define NAND_CONFIG 0xC48
+#define NAND_TIMING_1 0xC50
+#define NAND_TIMING_2 0xC54
+#define NAND_SEMAPHORE 0xC58
+#define NAND_DEVID 0xC60
+#define NAND_DEVID_X 0xC64
+#define NAND_BLOCK_LOCK_STATUS 0xC68
+#define NAND_INTFC_STATUS 0xC6C
+#define NAND_ECC_CORR_ADDR_X 0xC70
+#define NAND_ECC_CORR_ADDR 0xC74
+#define NAND_ECC_UNC_ADDR_X 0xC78
+#define NAND_ECC_UNC_ADDR 0xC7C
+#define NAND_READ_ERROR_COUNT 0xC80
+#define NAND_CORR_STAT_THRESHOLD 0xC84
+#define NAND_READ_ADDR_X 0xC90
+#define NAND_READ_ADDR 0xC94
+#define NAND_PAGE_PROGRAM_ADDR_X 0xC98
+#define NAND_PAGE_PROGRAM_ADDR 0xC9C
+#define NAND_COPY_BACK_ADDR_X 0xCA0
+#define NAND_COPY_BACK_ADDR 0xCA4
+#define NAND_BLOCK_ERASE_ADDR_X 0xCA8
+#define NAND_BLOCK_ERASE_ADDR 0xCAC
+#define NAND_INV_READ_ADDR_X 0xCB0
+#define NAND_INV_READ_ADDR 0xCB4
+#define NAND_BLK_WR_PROTECT 0xCC0
+#define NAND_ACC_CONTROL_CS1 0xCD0
+#define NAND_CONFIG_CS1 0xCD4
+#define NAND_TIMING_1_CS1 0xCD8
+#define NAND_TIMING_2_CS1 0xCDC
+#define NAND_SPARE_RD16 0xD30
+#define NAND_SPARE_RD20 0xD34
+#define NAND_SPARE_RD24 0xD38
+#define NAND_SPARE_RD28 0xD3C
+#define NAND_CACHE_ADDR 0xD40
+#define NAND_CACHE_DATA 0xD44
+#define NAND_CTRL_CONFIG 0xD48
+#define NAND_CTRL_STATUS 0xD4C
+
+struct bcma_drv_cc;
+
+struct bcm47xx_nflash {
+ struct bcma_drv_cc *bcc;
+
+ bool present;
+ bool boot; /* This is the flash the SoC boots from */
+ u32 blocksize; /* Block size */
+ u32 pagesize; /* Page size */
+
+ u32 size; /* Total size in bytes */
+ u32 next_opcode; /* Next expected command from upper NAND layer */
+
+ struct mtd_info *mtd;
+};
+
+#endif /* LINUX_MTD_BCM47XX_NAND_H_ */

527
target/linux/brcm47xx/patches-3.3/060-ssb-add-serial-flash-driver.patch Normal file
View file

@ -0,0 +1,527 @@
--- a/drivers/ssb/Kconfig
+++ b/drivers/ssb/Kconfig
@@ -143,6 +143,11 @@ config SSB_EMBEDDED
depends on SSB_DRIVER_MIPS
default y
+config SSB_SFLASH
+ bool
+ depends on SSB_DRIVER_MIPS
+ default y
+
config SSB_DRIVER_EXTIF
bool "SSB Broadcom EXTIF core driver"
depends on SSB_DRIVER_MIPS
--- a/drivers/ssb/Makefile
+++ b/drivers/ssb/Makefile
@@ -11,6 +11,7 @@ ssb-$(CONFIG_SSB_SDIOHOST) += sdio.o
# built-in drivers
ssb-y += driver_chipcommon.o
ssb-y += driver_chipcommon_pmu.o
+ssb-$(CONFIG_SSB_SFLASH) += driver_chipcommon_sflash.o
ssb-$(CONFIG_SSB_DRIVER_MIPS) += driver_mipscore.o
ssb-$(CONFIG_SSB_DRIVER_EXTIF) += driver_extif.o
ssb-$(CONFIG_SSB_DRIVER_PCICORE) += driver_pcicore.o
--- /dev/null
+++ b/drivers/ssb/driver_chipcommon_sflash.c
@@ -0,0 +1,395 @@
+/*
+ * Broadcom specific AMBA
+ * ChipCommon serial flash interface
+ * Copyright 2011, Jonas Gorski <jonas.gorski@gmail.com>
+ * Copyright 2011, 2012, Hauke Mehrtens <hauke@hauke-m.de>
+ * Copyright 2010, Broadcom Corporation
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/ssb/ssb.h>
+#include <linux/ssb/ssb_driver_chipcommon.h>
+
+#include "ssb_private.h"
+
+#define NUM_RETRIES 3
+
+static struct resource ssb_sflash_resource = {
+ .name = "ssb_sflash",
+ .start = SSB_FLASH2,
+ .end = 0,
+ .flags = IORESOURCE_MEM | IORESOURCE_READONLY,
+};
+
+struct platform_device ssb_sflash_dev = {
+ .name = "bcm47xx-sflash",
+ .resource = &ssb_sflash_resource,
+ .num_resources = 1,
+};
+
+struct ssb_sflash_tbl_e {
+ char *name;
+ u32 id;
+ u32 blocksize;
+ u16 numblocks;
+};
+
+static const struct ssb_sflash_tbl_e ssb_sflash_st_tbl[] = {
+ { "M25P20", 0x11, 0x10000, 4, },
+ { "M25P40", 0x12, 0x10000, 8, },
+
+ { "M25P16", 0x14, 0x10000, 32, },
+ { "M25P32", 0x14, 0x10000, 64, },
+ { "M25P64", 0x16, 0x10000, 128, },
+ { "M25FL128", 0x17, 0x10000, 256, },
+ { 0 },
+};
+
+static const struct ssb_sflash_tbl_e ssb_sflash_sst_tbl[] = {
+ { "SST25WF512", 1, 0x1000, 16, },
+ { "SST25VF512", 0x48, 0x1000, 16, },
+ { "SST25WF010", 2, 0x1000, 32, },
+ { "SST25VF010", 0x49, 0x1000, 32, },
+ { "SST25WF020", 3, 0x1000, 64, },
+ { "SST25VF020", 0x43, 0x1000, 64, },
+ { "SST25WF040", 4, 0x1000, 128, },
+ { "SST25VF040", 0x44, 0x1000, 128, },
+ { "SST25VF040B", 0x8d, 0x1000, 128, },
+ { "SST25WF080", 5, 0x1000, 256, },
+ { "SST25VF080B", 0x8e, 0x1000, 256, },
+ { "SST25VF016", 0x41, 0x1000, 512, },
+ { "SST25VF032", 0x4a, 0x1000, 1024, },
+ { "SST25VF064", 0x4b, 0x1000, 2048, },
+ { 0 },
+};
+
+static const struct ssb_sflash_tbl_e ssb_sflash_at_tbl[] = {
+ { "AT45DB011", 0xc, 256, 512, },
+ { "AT45DB021", 0x14, 256, 1024, },
+ { "AT45DB041", 0x1c, 256, 2048, },
+ { "AT45DB081", 0x24, 256, 4096, },
+ { "AT45DB161", 0x2c, 512, 4096, },
+ { "AT45DB321", 0x34, 512, 8192, },
+ { "AT45DB642", 0x3c, 1024, 8192, },
+ { 0 },
+};
+
+static void ssb_sflash_cmd(struct ssb_chipcommon *chipco, u32 opcode)
+{
+ int i;
+ chipco_write32(chipco, SSB_CHIPCO_FLASHCTL,
+ SSB_CHIPCO_FLASHCTL_START | opcode);
+ for (i = 0; i < 1000; i++) {
+ if (!(chipco_read32(chipco, SSB_CHIPCO_FLASHCTL) &
+ SSB_CHIPCO_FLASHCTL_BUSY))
+ return;
+ cpu_relax();
+ }
+ pr_err("SFLASH control command failed (timeout)!\n");
+}
+
+static void ssb_sflash_write_u8(struct ssb_chipcommon *chipco, u32 offset, u8 byte)
+{
+ chipco_write32(chipco, SSB_CHIPCO_FLASHADDR, offset);
+ chipco_write32(chipco, SSB_CHIPCO_FLASHDATA, byte);
+}
+
+/* Read len bytes starting at offset into buf. Returns number of bytes read. */
+static int ssb_sflash_read(struct bcm47xx_sflash *dev, u32 offset, u32 len, u8 *buf)
+{
+ u8 *from, *to;
+ u32 cnt, i;
+ struct ssb_chipcommon *chipco = dev->scc;
+
+ if (!len)
+ return 0;
+
+ if ((offset + len) > chipco->sflash.size)
+ return -EINVAL;
+
+ if ((len >= 4) && (offset & 3))
+ cnt = 4 - (offset & 3);
+ else if ((len >= 4) && ((u32)buf & 3))
+ cnt = 4 - ((u32)buf & 3);
+ else
+ cnt = len;
+
+ from = (u8 *)KSEG0ADDR(SSB_FLASH2 + offset);
+
+ to = (u8 *)buf;
+
+ if (cnt < 4) {
+ for (i = 0; i < cnt; i++) {
+ *to = readb(from);
+ from++;
+ to++;
+ }
+ return cnt;
+ }
+
+ while (cnt >= 4) {
+ *(u32 *)to = readl(from);
+ from += 4;
+ to += 4;
+ cnt -= 4;
+ }
+
+ return len - cnt;
+}
+
+/* Poll for command completion. Returns zero when complete. */
+static int ssb_sflash_poll(struct bcm47xx_sflash *dev, u32 offset)
+{
+ struct ssb_chipcommon *chipco = dev->scc;
+
+ if (offset >= chipco->sflash.size)
+ return -22;
+
+ switch (chipco->capabilities & SSB_CHIPCO_CAP_FLASHT) {
+ case SSB_CHIPCO_FLASHT_STSER:
+ /* Check for ST Write In Progress bit */
+ ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_ST_RDSR);
+ return chipco_read32(chipco, SSB_CHIPCO_FLASHDATA)
+ & SSB_CHIPCO_FLASHDATA_ST_WIP;
+ case SSB_CHIPCO_FLASHT_ATSER:
+ /* Check for Atmel Ready bit */
+ ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_AT_STATUS);
+ return !(chipco_read32(chipco, SSB_CHIPCO_FLASHDATA)
+ & SSB_CHIPCO_FLASHDATA_AT_READY);
+ }
+
+ return 0;
+}
+
+
+static int sflash_st_write(struct bcm47xx_sflash *dev, u32 offset, u32 len,
+ const u8 *buf)
+{
+ int written = 1;
+ struct ssb_chipcommon *chipco = dev->scc;
+
+ /* Enable writes */
+ ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_ST_WREN);
+ ssb_sflash_write_u8(chipco, offset, *buf++);
+ /* Issue a page program with CSA bit set */
+ ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_ST_CSA | SSB_CHIPCO_FLASHCTL_ST_PP);
+ offset++;
+ len--;
+ while (len > 0) {
+ if ((offset & 255) == 0) {
+ /* Page boundary, poll droping cs and return */
+ chipco_write32(chipco, SSB_CHIPCO_FLASHCTL, 0);
+ udelay(1);
+ if (!ssb_sflash_poll(dev, offset)) {
+ /* Flash rejected command */
+ return -EAGAIN;
+ }
+ return written;
+ } else {
+ /* Write single byte */
+ ssb_sflash_cmd(chipco,
+ SSB_CHIPCO_FLASHCTL_ST_CSA |
+ *buf++);
+ }
+ written++;
+ offset++;
+ len--;
+ }
+ /* All done, drop cs & poll */
+ chipco_write32(chipco, SSB_CHIPCO_FLASHCTL, 0);
+ udelay(1);
+ if (!ssb_sflash_poll(dev, offset)) {
+ /* Flash rejected command */
+ return -EAGAIN;
+ }
+ return written;
+}
+
+static int sflash_at_write(struct bcm47xx_sflash *dev, u32 offset, u32 len,
+ const u8 *buf)
+{
+ struct ssb_chipcommon *chipco = dev->scc;
+ u32 page, byte, mask;
+ int ret = 0;
+
+ mask = dev->blocksize - 1;
+ page = (offset & ~mask) << 1;
+ byte = offset & mask;
+ /* Read main memory page into buffer 1 */
+ if (byte || (len < dev->blocksize)) {
+ int i = 100;
+ chipco_write32(chipco, SSB_CHIPCO_FLASHADDR, page);
+ ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_AT_BUF1_LOAD);
+ /* 250 us for AT45DB321B */
+ while (i > 0 && ssb_sflash_poll(dev, offset)) {
+ udelay(10);
+ i--;
+ }
+ BUG_ON(!ssb_sflash_poll(dev, offset));
+ }
+ /* Write into buffer 1 */
+ for (ret = 0; (ret < (int)len) && (byte < dev->blocksize); ret++) {
+ ssb_sflash_write_u8(chipco, byte++, *buf++);
+ ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_AT_BUF1_WRITE);
+ }
+ /* Write buffer 1 into main memory page */
+ chipco_write32(chipco, SSB_CHIPCO_FLASHADDR, page);
+ ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_AT_BUF1_PROGRAM);
+
+ return ret;
+}
+
+/* Write len bytes starting at offset into buf. Returns number of bytes
+ * written. Caller should poll for completion.
+ */
+static int ssb_sflash_write(struct bcm47xx_sflash *dev, u32 offset, u32 len,
+ const u8 *buf)
+{
+ int ret = 0, tries = NUM_RETRIES;
+ struct ssb_chipcommon *chipco = dev->scc;
+
+ if (!len)
+ return 0;
+
+ if ((offset + len) > chipco->sflash.size)
+ return -EINVAL;
+
+ switch (chipco->capabilities & SSB_CHIPCO_CAP_FLASHT) {
+ case SSB_CHIPCO_FLASHT_STSER:
+ do {
+ ret = sflash_st_write(dev, offset, len, buf);
+ tries--;
+ } while (ret == -EAGAIN && tries > 0);
+
+ if (ret == -EAGAIN && tries == 0) {
+ pr_info("ST Flash rejected write\n");
+ ret = -EIO;
+ }
+ break;
+ case SSB_CHIPCO_FLASHT_ATSER:
+ ret = sflash_at_write(dev, offset, len, buf);
+ break;
+ }
+
+ return ret;
+}
+
+/* Erase a region. Returns number of bytes scheduled for erasure.
+ * Caller should poll for completion.
+ */
+static int ssb_sflash_erase(struct bcm47xx_sflash *dev, u32 offset)
+{
+ struct ssb_chipcommon *chipco = dev->scc;
+
+ if (offset >= chipco->sflash.size)
+ return -EINVAL;
+
+ switch (chipco->capabilities & SSB_CHIPCO_CAP_FLASHT) {
+ case SSB_CHIPCO_FLASHT_STSER:
+ ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_ST_WREN);
+ chipco_write32(chipco, SSB_CHIPCO_FLASHADDR, offset);
+ /* Newer flashes have "sub-sectors" which can be erased independently
+ * with a new command: ST_SSE. The ST_SE command erases 64KB just as
+ * before.
+ */
+ if (dev->blocksize < (64 * 1024))
+ ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_ST_SSE);
+ else
+ ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_ST_SE);
+ return dev->blocksize;
+ case SSB_CHIPCO_FLASHT_ATSER:
+ chipco_write32(chipco, SSB_CHIPCO_FLASHADDR, offset << 1);
+ ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_AT_PAGE_ERASE);
+ return dev->blocksize;
+ }
+
+ return 0;
+}
+
+/* Initialize serial flash achipcoess */
+int ssb_sflash_init(struct ssb_chipcommon *chipco)
+{
+ struct bcm47xx_sflash *sflash = &chipco->sflash;
+ const struct ssb_sflash_tbl_e *e;
+ u32 id, id2;
+
+ switch (chipco->capabilities & SSB_CHIPCO_CAP_FLASHT) {
+ case SSB_CHIPCO_FLASHT_STSER:
+ ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_ST_DP);
+
+ chipco_write32(chipco, SSB_CHIPCO_FLASHADDR, 0);
+ ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_ST_RES);
+ id = chipco_read32(chipco, SSB_CHIPCO_FLASHDATA);
+
+ chipco_write32(chipco, SSB_CHIPCO_FLASHADDR, 1);
+ ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_ST_RES);
+ id2 = chipco_read32(chipco, SSB_CHIPCO_FLASHDATA);
+
+ switch (id) {
+ case 0xbf:
+ for (e = ssb_sflash_sst_tbl; e->name; e++) {
+ if (e->id == id2)
+ break;
+ }
+ break;
+ case 0x13:
+ return -ENOTSUPP;
+ default:
+ for (e = ssb_sflash_st_tbl; e->name; e++) {
+ if (e->id == id)
+ break;
+ }
+ break;
+ }
+ if (!e->name) {
+ pr_err("Unsupported ST serial flash (id: 0x%X, id2: 0x%X)\n", id, id2);
+ return -ENOTSUPP;
+ }
+
+ break;
+ case SSB_CHIPCO_FLASHT_ATSER:
+ ssb_sflash_cmd(chipco, SSB_CHIPCO_FLASHCTL_AT_STATUS);
+ id = chipco_read32(chipco, SSB_CHIPCO_FLASHDATA) & 0x3c;
+
+ for (e = ssb_sflash_at_tbl; e->name; e++) {
+ if (e->id == id)
+ break;
+ }
+ if (!e->name) {
+ pr_err("Unsupported Atmel serial flash (id: 0x%X)\n", id);
+ return -ENOTSUPP;
+ }
+
+ break;
+ default:
+ pr_err("Unsupported flash type\n");
+ return -ENOTSUPP;
+ }
+
+ sflash->window = SSB_FLASH2;
+ sflash->blocksize = e->blocksize;
+ sflash->numblocks = e->numblocks;
+ sflash->size = sflash->blocksize * sflash->numblocks;
+ sflash->present = true;
+ sflash->read = ssb_sflash_read;
+ sflash->poll = ssb_sflash_poll;
+ sflash->write = ssb_sflash_write;
+ sflash->erase = ssb_sflash_erase;
+ sflash->type = BCM47XX_SFLASH_SSB;
+ sflash->scc = chipco;
+
+ pr_info("Found %s serial flash (size: %dKiB, blocksize: 0x%X, blocks: %d)\n",
+ e->name, sflash->size / 1024, sflash->blocksize,
+ sflash->numblocks);
+
+ /* Prepare platform device, but don't register it yet. It's too early,
+ * malloc (required by device_private_init) is not available yet. */
+ ssb_sflash_dev.resource[0].end = ssb_sflash_dev.resource[0].start +
+ sflash->size;
+ ssb_sflash_dev.dev.platform_data = sflash;
+
+ return 0;
+}
--- a/drivers/ssb/driver_mipscore.c
+++ b/drivers/ssb/driver_mipscore.c
@@ -203,7 +203,8 @@ static void ssb_mips_flash_detect(struct
switch (bus->chipco.capabilities & SSB_CHIPCO_CAP_FLASHT) {
case SSB_CHIPCO_FLASHT_STSER:
case SSB_CHIPCO_FLASHT_ATSER:
- pr_err("Serial flash not supported\n");
+ pr_debug("Found serial flash\n");
+ ssb_sflash_init(&bus->chipco);
break;
case SSB_CHIPCO_FLASHT_PARA:
pr_debug("Found parallel flash\n");
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -18,6 +18,7 @@
#include <linux/ssb/ssb_driver_gige.h>
#include <linux/dma-mapping.h>
#include <linux/pci.h>
+#include <linux/platform_device.h>
#include <linux/mmc/sdio_func.h>
#include <linux/slab.h>
@@ -534,6 +535,15 @@ static int ssb_devices_register(struct s
dev_idx++;
}
+#ifdef CONFIG_SSB_SFLASH
+ if (bus->chipco.sflash.present) {
+ err = platform_device_register(&ssb_sflash_dev);
+ if (err)
+ ssb_printk(KERN_ERR PFX
+ "Error registering serial flash\n");
+ }
+#endif
+
return 0;
error:
/* Unwind the already registered devices. */
--- a/drivers/ssb/ssb_private.h
+++ b/drivers/ssb/ssb_private.h
@@ -211,4 +211,16 @@ static inline void b43_pci_ssb_bridge_ex
extern u32 ssb_pmu_get_cpu_clock(struct ssb_chipcommon *cc);
extern u32 ssb_pmu_get_controlclock(struct ssb_chipcommon *cc);
+#ifdef CONFIG_SSB_SFLASH
+/* driver_chipcommon_sflash.c */
+int ssb_sflash_init(struct ssb_chipcommon *chipco);
+extern struct platform_device ssb_sflash_dev;
+#else
+static inline int ssb_sflash_init(struct ssb_chipcommon *chipco)
+{
+ pr_err("Serial flash not supported\n");
+ return 0;
+}
+#endif /* CONFIG_SSB_SFLASH */
+
#endif /* LINUX_SSB_PRIVATE_H_ */
--- a/include/linux/ssb/ssb_driver_chipcommon.h
+++ b/include/linux/ssb/ssb_driver_chipcommon.h
@@ -13,6 +13,8 @@
* Licensed under the GPL version 2. See COPYING for details.
*/
+#include <linux/mtd/bcm47xx_sflash.h>
+
/** ChipCommon core registers. **/
#define SSB_CHIPCO_CHIPID 0x0000
@@ -121,6 +123,17 @@
#define SSB_CHIPCO_FLASHCTL_BUSY SSB_CHIPCO_FLASHCTL_START
#define SSB_CHIPCO_FLASHADDR 0x0044
#define SSB_CHIPCO_FLASHDATA 0x0048
+/* Status register bits for ST flashes */
+#define SSB_CHIPCO_FLASHDATA_ST_WIP 0x01 /* Write In Progress */
+#define SSB_CHIPCO_FLASHDATA_ST_WEL 0x02 /* Write Enable Latch */
+#define SSB_CHIPCO_FLASHDATA_ST_BP_MASK 0x1c /* Block Protect */
+#define SSB_CHIPCO_FLASHDATA_ST_BP_SHIFT 2
+#define SSB_CHIPCO_FLASHDATA_ST_SRWD 0x80 /* Status Register Write Disable */
+/* Status register bits for Atmel flashes */
+#define SSB_CHIPCO_FLASHDATA_AT_READY 0x80
+#define SSB_CHIPCO_FLASHDATA_AT_MISMATCH 0x40
+#define SSB_CHIPCO_FLASHDATA_AT_ID_MASK 0x38
+#define SSB_CHIPCO_FLASHDATA_AT_ID_SHIFT 3
#define SSB_CHIPCO_BCAST_ADDR 0x0050
#define SSB_CHIPCO_BCAST_DATA 0x0054
#define SSB_CHIPCO_GPIOPULLUP 0x0058 /* Rev >= 20 only */
@@ -503,7 +516,7 @@
#define SSB_CHIPCO_FLASHCTL_ST_PP 0x0302 /* Page Program */
#define SSB_CHIPCO_FLASHCTL_ST_SE 0x02D8 /* Sector Erase */
#define SSB_CHIPCO_FLASHCTL_ST_BE 0x00C7 /* Bulk Erase */
-#define SSB_CHIPCO_FLASHCTL_ST_DP 0x00B9 /* Deep Power-down */
+#define SSB_CHIPCO_FLASHCTL_ST_DP 0x00D9 /* Deep Power-down */
#define SSB_CHIPCO_FLASHCTL_ST_RES 0x03AB /* Read Electronic Signature */
#define SSB_CHIPCO_FLASHCTL_ST_CSA 0x1000 /* Keep chip select asserted */
#define SSB_CHIPCO_FLASHCTL_ST_SSE 0x0220 /* Sub-sector Erase */
@@ -591,6 +604,9 @@ struct ssb_chipcommon {
/* Fast Powerup Delay constant */
u16 fast_pwrup_delay;
struct ssb_chipcommon_pmu pmu;
+#ifdef CONFIG_SSB_SFLASH
+ struct bcm47xx_sflash sflash;
+#endif
};
static inline bool ssb_chipco_available(struct ssb_chipcommon *cc)

76
target/linux/brcm47xx/patches-3.3/061-ssb-register-parallel-flash-device.patch Normal file
View file

@ -0,0 +1,76 @@
--- a/drivers/ssb/driver_mipscore.c
+++ b/drivers/ssb/driver_mipscore.c
@@ -14,6 +14,7 @@
#include <linux/serial_core.h>
#include <linux/serial_reg.h>
#include <linux/time.h>
+#include <linux/platform_device.h>
#include "ssb_private.h"
@@ -186,6 +187,19 @@ static void ssb_mips_serial_init(struct
mcore->nr_serial_ports = 0;
}
+static struct resource ssb_pflash_resource = {
+ .name = "ssb_pflash",
+ .start = 0,
+ .end = 0,
+ .flags = 0,
+};
+
+struct platform_device ssb_pflash_dev = {
+ .name = "bcm47xx-pflash",
+ .resource = &ssb_pflash_resource,
+ .num_resources = 1,
+};
+
static void ssb_mips_flash_detect(struct ssb_mipscore *mcore)
{
struct ssb_bus *bus = mcore->dev->bus;
@@ -196,6 +210,9 @@ static void ssb_mips_flash_detect(struct
mcore->pflash.buswidth = 2;
mcore->pflash.window = SSB_FLASH1;
mcore->pflash.window_size = SSB_FLASH1_SZ;
+ ssb_pflash_resource.start = mcore->pflash.window;
+ ssb_pflash_resource.end = mcore->pflash.window +
+ mcore->pflash.window_size;
return;
}
@@ -216,6 +233,9 @@ static void ssb_mips_flash_detect(struct
mcore->pflash.buswidth = 1;
else
mcore->pflash.buswidth = 2;
+ ssb_pflash_resource.start = mcore->pflash.window;
+ ssb_pflash_resource.end = mcore->pflash.window +
+ mcore->pflash.window_size;
break;
}
}
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -543,6 +543,14 @@ static int ssb_devices_register(struct s
"Error registering serial flash\n");
}
#endif
+#ifdef CONFIG_SSB_DRIVER_MIPS
+ if (bus->mipscore.pflash.present) {
+ err = platform_device_register(&ssb_pflash_dev);
+ if (err)
+ ssb_printk(KERN_ERR PFX
+ "Error registering parallel flash\n");
+ }
+#endif
return 0;
error:
--- a/drivers/ssb/ssb_private.h
+++ b/drivers/ssb/ssb_private.h
@@ -223,4 +223,6 @@ static inline int ssb_sflash_init(struct
}
#endif /* CONFIG_SSB_SFLASH */
+extern struct platform_device ssb_pflash_dev;
+
#endif /* LINUX_SSB_PRIVATE_H_ */

345
target/linux/brcm47xx/patches-3.3/070-bcma-add-functions-to-write-to-serial-flash.patch Normal file
View file

@ -0,0 +1,345 @@
--- a/drivers/bcma/driver_chipcommon_sflash.c
+++ b/drivers/bcma/driver_chipcommon_sflash.c
@@ -1,15 +1,22 @@
/*
* Broadcom specific AMBA
* ChipCommon serial flash interface
+ * Copyright 2011, Jonas Gorski <jonas.gorski@gmail.com>
+ * Copyright 2011, 2012, Hauke Mehrtens <hauke@hauke-m.de>
+ * Copyright 2010, Broadcom Corporation
*
* Licensed under the GNU/GPL. See COPYING for details.
*/
#include <linux/platform_device.h>
+#include <linux/delay.h>
#include <linux/bcma/bcma.h>
+#include <linux/bcma/bcma_driver_chipcommon.h>
#include "bcma_private.h"
+#define NUM_RETRIES 3
+
static struct resource bcma_sflash_resource = {
.name = "bcma_sflash",
.start = BCMA_SOC_FLASH2,
@@ -18,7 +25,7 @@ static struct resource bcma_sflash_resou
};
struct platform_device bcma_sflash_dev = {
- .name = "bcma_sflash",
+ .name = "bcm47xx-sflash",
.resource = &bcma_sflash_resource,
.num_resources = 1,
};
@@ -30,7 +37,7 @@ struct bcma_sflash_tbl_e {
u16 numblocks;
};
-static struct bcma_sflash_tbl_e bcma_sflash_st_tbl[] = {
+static const struct bcma_sflash_tbl_e bcma_sflash_st_tbl[] = {
{ "M25P20", 0x11, 0x10000, 4, },
{ "M25P40", 0x12, 0x10000, 8, },
@@ -41,7 +48,7 @@ static struct bcma_sflash_tbl_e bcma_sfl
{ 0 },
};
-static struct bcma_sflash_tbl_e bcma_sflash_sst_tbl[] = {
+static const struct bcma_sflash_tbl_e bcma_sflash_sst_tbl[] = {
{ "SST25WF512", 1, 0x1000, 16, },
{ "SST25VF512", 0x48, 0x1000, 16, },
{ "SST25WF010", 2, 0x1000, 32, },
@@ -59,7 +66,7 @@ static struct bcma_sflash_tbl_e bcma_sfl
{ 0 },
};
-static struct bcma_sflash_tbl_e bcma_sflash_at_tbl[] = {
+static const struct bcma_sflash_tbl_e bcma_sflash_at_tbl[] = {
{ "AT45DB011", 0xc, 256, 512, },
{ "AT45DB021", 0x14, 256, 1024, },
{ "AT45DB041", 0x1c, 256, 2048, },
@@ -84,12 +91,230 @@ static void bcma_sflash_cmd(struct bcma_
bcma_err(cc->core->bus, "SFLASH control command failed (timeout)!\n");
}
+static void bcma_sflash_write_u8(struct bcma_drv_cc *cc, u32 offset, u8 byte)
+{
+ bcma_cc_write32(cc, BCMA_CC_FLASHADDR, offset);
+ bcma_cc_write32(cc, BCMA_CC_FLASHDATA, byte);
+}
+
+/* Read len bytes starting at offset into buf. Returns number of bytes read. */
+static int bcma_sflash_read(struct bcm47xx_sflash *dev, u32 offset, u32 len, u8 *buf)
+{
+ u8 *from, *to;
+ u32 cnt, i;
+ struct bcma_drv_cc *cc = dev->bcc;
+
+ if (!len)
+ return 0;
+
+ if ((offset + len) > cc->sflash.size)
+ return -EINVAL;
+
+ if ((len >= 4) && (offset & 3))
+ cnt = 4 - (offset & 3);
+ else if ((len >= 4) && ((u32)buf & 3))
+ cnt = 4 - ((u32)buf & 3);
+ else
+ cnt = len;
+
+ from = (u8 *)KSEG0ADDR(BCMA_SOC_FLASH2 + offset);
+
+ to = (u8 *)buf;
+
+ if (cnt < 4) {
+ for (i = 0; i < cnt; i++) {
+ *to = readb(from);
+ from++;
+ to++;
+ }
+ return cnt;
+ }
+
+ while (cnt >= 4) {
+ *(u32 *)to = readl(from);
+ from += 4;
+ to += 4;
+ cnt -= 4;
+ }
+
+ return len - cnt;
+}
+
+/* Poll for command completion. Returns zero when complete. */
+static int bcma_sflash_poll(struct bcm47xx_sflash *dev, u32 offset)
+{
+ struct bcma_drv_cc *cc = dev->bcc;
+
+ if (offset >= cc->sflash.size)
+ return -22;
+
+ switch (cc->capabilities & BCMA_CC_CAP_FLASHT) {
+ case BCMA_CC_FLASHT_STSER:
+ /* Check for ST Write In Progress bit */
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_RDSR);
+ return bcma_cc_read32(cc, BCMA_CC_FLASHDATA)
+ & BCMA_CC_FLASHDATA_ST_WIP;
+ case BCMA_CC_FLASHT_ATSER:
+ /* Check for Atmel Ready bit */
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_AT_STATUS);
+ return !(bcma_cc_read32(cc, BCMA_CC_FLASHDATA)
+ & BCMA_CC_FLASHDATA_AT_READY);
+ }
+
+ return 0;
+}
+
+
+static int sflash_st_write(struct bcm47xx_sflash *dev, u32 offset, u32 len,
+ const u8 *buf)
+{
+ int written = 1;
+ struct bcma_drv_cc *cc = dev->bcc;
+
+ /* Enable writes */
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_WREN);
+ bcma_sflash_write_u8(cc, offset, *buf++);
+ /* Issue a page program with CSA bit set */
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_CSA | BCMA_CC_FLASHCTL_ST_PP);
+ offset++;
+ len--;
+ while (len > 0) {
+ if ((offset & 255) == 0) {
+ /* Page boundary, poll droping cs and return */
+ bcma_cc_write32(cc, BCMA_CC_FLASHCTL, 0);
+ udelay(1);
+ if (!bcma_sflash_poll(dev, offset)) {
+ /* Flash rejected command */
+ return -EAGAIN;
+ }
+ return written;
+ } else {
+ /* Write single byte */
+ bcma_sflash_cmd(cc,
+ BCMA_CC_FLASHCTL_ST_CSA |
+ *buf++);
+ }
+ written++;
+ offset++;
+ len--;
+ }
+ /* All done, drop cs & poll */
+ bcma_cc_write32(cc, BCMA_CC_FLASHCTL, 0);
+ udelay(1);
+ if (!bcma_sflash_poll(dev, offset)) {
+ /* Flash rejected command */
+ return -EAGAIN;
+ }
+ return written;
+}
+
+static int sflash_at_write(struct bcm47xx_sflash *dev, u32 offset, u32 len,
+ const u8 *buf)
+{
+ struct bcma_drv_cc *cc = dev->bcc;
+ u32 page, byte, mask;
+ int ret = 0;
+
+ mask = dev->blocksize - 1;
+ page = (offset & ~mask) << 1;
+ byte = offset & mask;
+ /* Read main memory page into buffer 1 */
+ if (byte || (len < dev->blocksize)) {
+ int i = 100;
+ bcma_cc_write32(cc, BCMA_CC_FLASHADDR, page);
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_AT_BUF1_LOAD);
+ /* 250 us for AT45DB321B */
+ while (i > 0 && bcma_sflash_poll(dev, offset)) {
+ udelay(10);
+ i--;
+ }
+ BUG_ON(!bcma_sflash_poll(dev, offset));
+ }
+ /* Write into buffer 1 */
+ for (ret = 0; (ret < (int)len) && (byte < dev->blocksize); ret++) {
+ bcma_sflash_write_u8(cc, byte++, *buf++);
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_AT_BUF1_WRITE);
+ }
+ /* Write buffer 1 into main memory page */
+ bcma_cc_write32(cc, BCMA_CC_FLASHADDR, page);
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_AT_BUF1_PROGRAM);
+
+ return ret;
+}
+
+/* Write len bytes starting at offset into buf. Returns number of bytes
+ * written. Caller should poll for completion.
+ */
+static int bcma_sflash_write(struct bcm47xx_sflash *dev, u32 offset, u32 len,
+ const u8 *buf)
+{
+ int ret = 0, tries = NUM_RETRIES;
+ struct bcma_drv_cc *cc = dev->bcc;
+
+ if (!len)
+ return 0;
+
+ if ((offset + len) > cc->sflash.size)
+ return -EINVAL;
+
+ switch (cc->capabilities & BCMA_CC_CAP_FLASHT) {
+ case BCMA_CC_FLASHT_STSER:
+ do {
+ ret = sflash_st_write(dev, offset, len, buf);
+ tries--;
+ } while (ret == -EAGAIN && tries > 0);
+
+ if (ret == -EAGAIN && tries == 0) {
+ bcma_info(cc->core->bus, "ST Flash rejected write\n");
+ ret = -EIO;
+ }
+ break;
+ case BCMA_CC_FLASHT_ATSER:
+ ret = sflash_at_write(dev, offset, len, buf);
+ break;
+ }
+
+ return ret;
+}
+
+/* Erase a region. Returns number of bytes scheduled for erasure.
+ * Caller should poll for completion.
+ */
+static int bcma_sflash_erase(struct bcm47xx_sflash *dev, u32 offset)
+{
+ struct bcma_drv_cc *cc = dev->bcc;
+
+ if (offset >= cc->sflash.size)
+ return -EINVAL;
+
+ switch (cc->capabilities & BCMA_CC_CAP_FLASHT) {
+ case BCMA_CC_FLASHT_STSER:
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_WREN);
+ bcma_cc_write32(cc, BCMA_CC_FLASHADDR, offset);
+ /* Newer flashes have "sub-sectors" which can be erased independently
+ * with a new command: ST_SSE. The ST_SE command erases 64KB just as
+ * before.
+ */
+ if (dev->blocksize < (64 * 1024))
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_SSE);
+ else
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_ST_SE);
+ return dev->blocksize;
+ case BCMA_CC_FLASHT_ATSER:
+ bcma_cc_write32(cc, BCMA_CC_FLASHADDR, offset << 1);
+ bcma_sflash_cmd(cc, BCMA_CC_FLASHCTL_AT_PAGE_ERASE);
+ return dev->blocksize;
+ }
+
+ return 0;
+}
+
/* Initialize serial flash access */
int bcma_sflash_init(struct bcma_drv_cc *cc)
{
struct bcma_bus *bus = cc->core->bus;
- struct bcma_sflash *sflash = &cc->sflash;
- struct bcma_sflash_tbl_e *e;
+ struct bcm47xx_sflash *sflash = &cc->sflash;
+ const struct bcma_sflash_tbl_e *e;
u32 id, id2;
switch (cc->capabilities & BCMA_CC_CAP_FLASHT) {
@@ -150,6 +375,12 @@ int bcma_sflash_init(struct bcma_drv_cc
sflash->numblocks = e->numblocks;
sflash->size = sflash->blocksize * sflash->numblocks;
sflash->present = true;
+ sflash->read = bcma_sflash_read;
+ sflash->poll = bcma_sflash_poll;
+ sflash->write = bcma_sflash_write;
+ sflash->erase = bcma_sflash_erase;
+ sflash->type = BCM47XX_SFLASH_BCMA;
+ sflash->bcc = cc;
bcma_info(bus, "Found %s serial flash (size: %dKiB, blocksize: 0x%X, blocks: %d)\n",
e->name, sflash->size / 1024, sflash->blocksize,
--- a/include/linux/bcma/bcma_driver_chipcommon.h
+++ b/include/linux/bcma/bcma_driver_chipcommon.h
@@ -1,6 +1,8 @@
#ifndef LINUX_BCMA_DRIVER_CC_H_
#define LINUX_BCMA_DRIVER_CC_H_
+#include <linux/mtd/bcm47xx_sflash.h>
+
/** ChipCommon core registers. **/
#define BCMA_CC_ID 0x0000
#define BCMA_CC_ID_ID 0x0000FFFF
@@ -516,17 +518,6 @@ struct bcma_pflash {
u32 window_size;
};
-#ifdef CONFIG_BCMA_SFLASH
-struct bcma_sflash {
- bool present;
- u32 window;
- u32 blocksize;
- u16 numblocks;
- u32 size;
-
- struct mtd_info *mtd;
-};
-#endif
#ifdef CONFIG_BCMA_NFLASH
struct mtd_info;
@@ -561,7 +552,7 @@ struct bcma_drv_cc {
#ifdef CONFIG_BCMA_DRIVER_MIPS
struct bcma_pflash pflash;
#ifdef CONFIG_BCMA_SFLASH
- struct bcma_sflash sflash;
+ struct bcm47xx_sflash sflash;
#endif
#ifdef CONFIG_BCMA_NFLASH
struct bcma_nflash nflash;

232
target/linux/brcm47xx/patches-3.3/071-bcma-add-functions-to-write-to-nand-flash.patch Normal file
View file

@ -0,0 +1,232 @@
--- a/drivers/bcma/driver_chipcommon_nflash.c
+++ b/drivers/bcma/driver_chipcommon_nflash.c
@@ -2,16 +2,23 @@
* Broadcom specific AMBA
* ChipCommon NAND flash interface
*
+ * Copyright 2011, Tathagata Das <tathagata@alumnux.com>
+ * Copyright 2010, Broadcom Corporation
+ *
* Licensed under the GNU/GPL. See COPYING for details.
*/
+#include <linux/delay.h>
+#include <linux/mtd/bcm47xx_nand.h>
+#include <linux/mtd/nand.h>
#include <linux/platform_device.h>
#include <linux/bcma/bcma.h>
+#include <linux/bcma/bcma_driver_chipcommon.h>
#include "bcma_private.h"
struct platform_device bcma_nflash_dev = {
- .name = "bcma_nflash",
+ .name = "bcm47xx-nflash",
.num_resources = 0,
};
@@ -31,6 +38,11 @@ int bcma_nflash_init(struct bcma_drv_cc
return -ENODEV;
}
+ if (bus->chipinfo.id == BCMA_CHIP_ID_BCM4706) {
+ bcma_err(bus, "NAND flash support for BCM4706 not implemented\n");
+ return -ENOTSUPP;
+ }
+
cc->nflash.present = true;
if (cc->core->id.rev == 38 &&
(cc->status & BCMA_CC_CHIPST_5357_NAND_BOOT))
@@ -42,3 +54,141 @@ int bcma_nflash_init(struct bcma_drv_cc
return 0;
}
+
+/* Issue a nand flash command */
+static inline void bcma_nflash_cmd(struct bcma_drv_cc *cc, u32 opcode)
+{
+ bcma_cc_write32(cc, NAND_CMD_START, opcode);
+ bcma_cc_read32(cc, NAND_CMD_START);
+}
+
+/* Check offset and length */
+static int bcma_nflash_offset_is_valid(struct bcma_drv_cc *cc, u32 offset, u32 len, u32 mask)
+{
+ if ((offset & mask) != 0 || (len & mask) != 0) {
+ pr_err("%s(): Address is not aligned. offset: %x, len: %x, mask: %x\n", __func__, offset, len, mask);
+ return 1;
+ }
+
+ if ((((offset + len) >> 20) >= cc->nflash.size) &&
+ (((offset + len) & ((1 << 20) - 1)) != 0)) {
+ pr_err("%s(): Address is outside Flash memory region. offset: %x, len: %x, mask: %x\n", __func__, offset, len, mask);
+ return 1;
+ }
+
+ return 0;
+}
+
+#define NF_RETRIES 1000000
+
+/* Poll for command completion. Returns zero when complete. */
+int bcma_nflash_poll(struct bcma_drv_cc *cc)
+{
+ u32 retries = NF_RETRIES;
+ u32 pollmask = NIST_CTRL_READY|NIST_FLASH_READY;
+ u32 mask;
+
+ while (retries--) {
+ mask = bcma_cc_read32(cc, NAND_INTFC_STATUS) & pollmask;
+ if (mask == pollmask)
+ return 0;
+ cpu_relax();
+ }
+
+ if (!retries) {
+ pr_err("bcma_nflash_poll: not ready\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+/* Read len bytes starting at offset into buf. Returns number of bytes read. */
+int bcma_nflash_read(struct bcma_drv_cc *cc, u32 offset, u32 len, u8 *buf)
+{
+ u32 mask;
+ int i;
+ u32 *to, val, res;
+
+ mask = NFL_SECTOR_SIZE - 1;
+ if (bcma_nflash_offset_is_valid(cc, offset, len, mask))
+ return 0;
+
+ to = (u32 *)buf;
+ res = len;
+ while (res > 0) {
+ bcma_cc_write32(cc, NAND_CMD_ADDR, offset);
+ bcma_nflash_cmd(cc, NCMD_PAGE_RD);
+ if (bcma_nflash_poll(cc) < 0)
+ break;
+ val = bcma_cc_read32(cc, NAND_INTFC_STATUS);
+ if ((val & NIST_CACHE_VALID) == 0)
+ break;
+ bcma_cc_write32(cc, NAND_CACHE_ADDR, 0);
+ for (i = 0; i < NFL_SECTOR_SIZE; i += 4, to++) {
+ *to = bcma_cc_read32(cc, NAND_CACHE_DATA);
+ }
+ res -= NFL_SECTOR_SIZE;
+ offset += NFL_SECTOR_SIZE;
+ }
+ return (len - res);
+}
+
+/* Write len bytes starting at offset into buf. Returns success (0) or failure (!0).
+ * Should poll for completion.
+ */
+int bcma_nflash_write(struct bcma_drv_cc *cc, u32 offset, u32 len,
+ const u8 *buf)
+{
+ u32 mask;
+ int i;
+ u32 *from, res, reg;
+
+ mask = cc->nflash.pagesize - 1;
+ if (bcma_nflash_offset_is_valid(cc, offset, len, mask))
+ return 1;
+
+ /* disable partial page enable */
+ reg = bcma_cc_read32(cc, NAND_ACC_CONTROL);
+ reg &= ~NAC_PARTIAL_PAGE_EN;
+ bcma_cc_write32(cc, NAND_ACC_CONTROL, reg);
+
+ from = (u32 *)buf;
+ res = len;
+ while (res > 0) {
+ bcma_cc_write32(cc, NAND_CACHE_ADDR, 0);
+ for (i = 0; i < cc->nflash.pagesize; i += 4, from++) {
+ if (i % 512 == 0)
+ bcma_cc_write32(cc, NAND_CMD_ADDR, i);
+ bcma_cc_write32(cc, NAND_CACHE_DATA, *from);
+ }
+ bcma_cc_write32(cc, NAND_CMD_ADDR, offset + cc->nflash.pagesize - 512);
+ bcma_nflash_cmd(cc, NCMD_PAGE_PROG);
+ if (bcma_nflash_poll(cc) < 0)
+ break;
+ res -= cc->nflash.pagesize;
+ offset += cc->nflash.pagesize;
+ }
+
+ if (res <= 0)
+ return 0;
+ else
+ return (len - res);
+}
+
+/* Erase a region. Returns success (0) or failure (-1).
+ * Poll for completion.
+ */
+int bcma_nflash_erase(struct bcma_drv_cc *cc, u32 offset)
+{
+ if ((offset >> 20) >= cc->nflash.size)
+ return -1;
+ if ((offset & (cc->nflash.blocksize - 1)) != 0)
+ return -1;
+
+ bcma_cc_write32(cc, NAND_CMD_ADDR, offset);
+ bcma_nflash_cmd(cc, NCMD_BLOCK_ERASE);
+ if (bcma_nflash_poll(cc) < 0)
+ return -1;
+ return 0;
+}
--- a/include/linux/bcma/bcma_driver_chipcommon.h
+++ b/include/linux/bcma/bcma_driver_chipcommon.h
@@ -2,6 +2,7 @@
#define LINUX_BCMA_DRIVER_CC_H_
#include <linux/mtd/bcm47xx_sflash.h>
+#include <linux/mtd/bcm47xx_nand.h>
/** ChipCommon core registers. **/
#define BCMA_CC_ID 0x0000
@@ -519,17 +520,6 @@ struct bcma_pflash {
};
-#ifdef CONFIG_BCMA_NFLASH
-struct mtd_info;
-
-struct bcma_nflash {
- bool present;
- bool boot; /* This is the flash the SoC boots from */
-
- struct mtd_info *mtd;
-};
-#endif
-
struct bcma_serial_port {
void *regs;
unsigned long clockspeed;
@@ -555,7 +545,7 @@ struct bcma_drv_cc {
struct bcm47xx_sflash sflash;
#endif
#ifdef CONFIG_BCMA_NFLASH
- struct bcma_nflash nflash;
+ struct bcm47xx_nflash nflash;
#endif
int nr_serial_ports;
@@ -613,4 +603,13 @@ extern void bcma_chipco_regctl_maskset(s
u32 offset, u32 mask, u32 set);
extern void bcma_pmu_spuravoid_pllupdate(struct bcma_drv_cc *cc, int spuravoid);
+#ifdef CONFIG_BCMA_NFLASH
+/* Chipcommon nflash support. */
+int bcma_nflash_read(struct bcma_drv_cc *cc, u32 offset, u32 len, u8 *buf);
+int bcma_nflash_poll(struct bcma_drv_cc *cc);
+int bcma_nflash_write(struct bcma_drv_cc *cc, u32 offset, u32 len, const u8 *buf);
+int bcma_nflash_erase(struct bcma_drv_cc *cc, u32 offset);
+int bcma_nflash_commit(struct bcma_drv_cc *cc, u32 offset, u32 len, const u8 *buf);
+#endif
+
#endif /* LINUX_BCMA_DRIVER_CC_H_ */

67
target/linux/brcm47xx/patches-3.3/072-bcma-register-parallel-flash-device.patch Normal file
View file

@ -0,0 +1,67 @@
--- a/drivers/bcma/bcma_private.h
+++ b/drivers/bcma/bcma_private.h
@@ -45,6 +45,7 @@ int bcma_sprom_get(struct bcma_bus *bus)
/* driver_chipcommon.c */
#ifdef CONFIG_BCMA_DRIVER_MIPS
void bcma_chipco_serial_init(struct bcma_drv_cc *cc);
+extern struct platform_device bcma_pflash_dev;
#endif /* CONFIG_BCMA_DRIVER_MIPS */
/* driver_chipcommon_pmu.c */
--- a/drivers/bcma/driver_mips.c
+++ b/drivers/bcma/driver_mips.c
@@ -18,6 +18,7 @@
#include <linux/serial_core.h>
#include <linux/serial_reg.h>
#include <linux/time.h>
+#include <linux/platform_device.h>
/* The 47162a0 hangs when reading MIPS DMP registers registers */
static inline bool bcma_core_mips_bcm47162a0_quirk(struct bcma_device *dev)
@@ -178,6 +179,19 @@ u32 bcma_cpu_clock(struct bcma_drv_mips
}
EXPORT_SYMBOL(bcma_cpu_clock);
+static struct resource bcma_pflash_resource = {
+ .name = "bcma_pflash",
+ .start = 0,
+ .end = 0,
+ .flags = 0,
+};
+
+struct platform_device bcma_pflash_dev = {
+ .name = "bcm47xx-pflash",
+ .resource = &bcma_pflash_resource,
+ .num_resources = 1,
+};
+
static void bcma_core_mips_flash_detect(struct bcma_drv_mips *mcore)
{
struct bcma_bus *bus = mcore->core->bus;
@@ -200,6 +214,9 @@ static void bcma_core_mips_flash_detect(
cc->pflash.buswidth = 1;
else
cc->pflash.buswidth = 2;
+
+ bcma_pflash_resource.start = cc->pflash.window;
+ bcma_pflash_resource.end = cc->pflash.window + cc->pflash.window_size;
break;
default:
bcma_err(bus, "Flash type not supported\n");
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -149,6 +149,14 @@ static int bcma_register_cores(struct bc
dev_id++;
}
+#ifdef CONFIG_BCMA_DRIVER_MIPS
+ if (bus->drv_cc.pflash.present) {
+ err = platform_device_register(&bcma_pflash_dev);
+ if (err)
+ bcma_err(bus, "Error registering parallel flash\n");
+ }
+#endif
+
#ifdef CONFIG_BCMA_SFLASH
if (bus->drv_cc.sflash.present) {
err = platform_device_register(&bcma_sflash_dev);

183
target/linux/brcm47xx/patches-3.3/080-MIPS-BCM47XX-rewrite-nvram-probing.patch Normal file
View file

@ -0,0 +1,183 @@
--- a/arch/mips/bcm47xx/nvram.c
+++ b/arch/mips/bcm47xx/nvram.c
@@ -3,7 +3,7 @@
*
* Copyright (C) 2005 Broadcom Corporation
* Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
- * Copyright (C) 2010-2011 Hauke Mehrtens <hauke@hauke-m.de>
+ * Copyright (C) 2010-2012 Hauke Mehrtens <hauke@hauke-m.de>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
@@ -23,69 +23,139 @@
static char nvram_buf[NVRAM_SPACE];
+static u32 find_nvram_size(u32 end)
+{
+ struct nvram_header *header;
+ u32 nvram_sizes[] = {0x8000, 0xF000, 0x10000};
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(nvram_sizes); i++) {
+ header = (struct nvram_header *)KSEG1ADDR(end - nvram_sizes[i]);
+ if (header->magic == NVRAM_HEADER)
+ return nvram_sizes[i];
+ }
+
+ return 0;
+}
+
/* Probe for NVRAM header */
-static void early_nvram_init(void)
+static void early_nvram_init_fill(u32 base, u32 lim)
{
-#ifdef CONFIG_BCM47XX_SSB
- struct ssb_mipscore *mcore_ssb;
-#endif
-#ifdef CONFIG_BCM47XX_BCMA
- struct bcma_drv_cc *bcma_cc;
-#endif
struct nvram_header *header;
int i;
- u32 base = 0;
- u32 lim = 0;
u32 off;
u32 *src, *dst;
+ u32 size;
- switch (bcm47xx_bus_type) {
-#ifdef CONFIG_BCM47XX_SSB
- case BCM47XX_BUS_TYPE_SSB:
- mcore_ssb = &bcm47xx_bus.ssb.mipscore;
- base = mcore_ssb->pflash.window;
- lim = mcore_ssb->pflash.window_size;
- break;
-#endif
-#ifdef CONFIG_BCM47XX_BCMA
- case BCM47XX_BUS_TYPE_BCMA:
- bcma_cc = &bcm47xx_bus.bcma.bus.drv_cc;
- base = bcma_cc->pflash.window;
- lim = bcma_cc->pflash.window_size;
- break;
-#endif
- }
-
+ /* TODO: when nvram is on nand flash check for bad blocks first. */
off = FLASH_MIN;
while (off <= lim) {
/* Windowed flash access */
- header = (struct nvram_header *)
- KSEG1ADDR(base + off - NVRAM_SPACE);
- if (header->magic == NVRAM_HEADER)
+ size = find_nvram_size(base + off);
+ if (size) {
+ header = (struct nvram_header *)KSEG1ADDR(base + off -
+ size);
goto found;
+ }
off <<= 1;
}
/* Try embedded NVRAM at 4 KB and 1 KB as last resorts */
header = (struct nvram_header *) KSEG1ADDR(base + 4096);
- if (header->magic == NVRAM_HEADER)
+ if (header->magic == NVRAM_HEADER) {
+ size = NVRAM_SPACE;
goto found;
+ }
header = (struct nvram_header *) KSEG1ADDR(base + 1024);
- if (header->magic == NVRAM_HEADER)
+ if (header->magic == NVRAM_HEADER) {
+ size = NVRAM_SPACE;
goto found;
+ }
+ pr_err("no nvram found\n");
return;
found:
+
+ if (header->len > size)
+ pr_err("The nvram size accoridng to the header seems to be bigger than the partition on flash\n");
+ if (header->len > NVRAM_SPACE)
+ pr_err("nvram on flash (%i bytes) is bigger than the reserved space in memory, will just copy the first %i bytes\n",
+ header->len, NVRAM_SPACE);
+
src = (u32 *) header;
dst = (u32 *) nvram_buf;
for (i = 0; i < sizeof(struct nvram_header); i += 4)
*dst++ = *src++;
- for (; i < header->len && i < NVRAM_SPACE; i += 4)
+ for (; i < header->len && i < NVRAM_SPACE && i < size; i += 4)
*dst++ = le32_to_cpu(*src++);
}
+#ifdef CONFIG_BCM47XX_BCMA
+static void early_nvram_init_bcma(void)
+{
+ struct bcma_drv_cc *cc = &bcm47xx_bus.bcma.bus.drv_cc;
+ u32 base = 0;
+ u32 lim = 0;
+
+ if (cc->nflash.boot) {
+ base = BCMA_SOC_FLASH1;
+ lim = BCMA_SOC_FLASH1_SZ;
+ } else if (cc->pflash.present) {
+ base = cc->pflash.window;
+ lim = cc->pflash.window_size;
+ } else if (cc->sflash.present) {
+ base = cc->sflash.window;
+ lim = cc->sflash.size;
+ } else {
+ pr_err("No supported flash found\n");
+ return;
+ }
+
+ early_nvram_init_fill(base, lim);
+}
+#endif
+
+#ifdef CONFIG_BCM47XX_SSB
+static void early_nvram_init_ssb(void)
+{
+ struct ssb_mipscore *mcore = &bcm47xx_bus.ssb.mipscore;
+ struct ssb_chipcommon *chipco = &bcm47xx_bus.ssb.chipco;
+ u32 base = 0;
+ u32 lim = 0;
+
+ if (mcore->pflash.present) {
+ base = mcore->pflash.window;
+ lim = mcore->pflash.window_size;
+ } else if (chipco->sflash.present) {
+ base = chipco->sflash.window;
+ lim = chipco->sflash.size;
+ } else {
+ pr_err("No supported flash found\n");
+ return;
+ }
+
+ early_nvram_init_fill(base, lim);
+}
+#endif
+
+static void early_nvram_init(void)
+{
+ switch (bcm47xx_bus_type) {
+#ifdef CONFIG_BCM47XX_SSB
+ case BCM47XX_BUS_TYPE_SSB:
+ early_nvram_init_ssb();
+ break;
+#endif
+#ifdef CONFIG_BCM47XX_BCMA
+ case BCM47XX_BUS_TYPE_BCMA:
+ early_nvram_init_bcma();
+ break;
+#endif
+ }
+}
+
int nvram_getenv(char *name, char *val, size_t val_len)
{
char *var, *value, *end, *eq;

10
target/linux/brcm47xx/patches-3.3/114-MIPS-BCM47xx-Setup-and-register-serial-early.patch
View file

@ -15,16 +15,16 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -33,6 +33,8 @@
@@ -31,6 +31,8 @@
#include <linux/ssb/ssb.h>
#include <linux/ssb/ssb_embedded.h>
#include <linux/bcma/bcma_soc.h>
#include <linux/platform_device.h>
+#include <linux/serial.h>
+#include <linux/serial_8250.h>
#include <asm/bootinfo.h>
#include <asm/reboot.h>
#include <asm/time.h>
@@ -152,6 +154,31 @@ static int bcm47xx_get_invariants(struct
@@ -121,6 +123,31 @@ static int bcm47xx_get_invariants(struct
return 0;
}
@ -56,7 +56,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
static void __init bcm47xx_register_ssb(void)
{
int err;
@@ -184,6 +211,10 @@ static void __init bcm47xx_register_ssb(
@@ -150,6 +177,10 @@ static void __init bcm47xx_register_ssb(
memcpy(&mcore->serial_ports[1], &port, sizeof(port));
}
}
@ -65,5 +65,5 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+ bcm47xx_early_serial_setup(mcore);
+#endif
}
#endif
static int __init bcm47xx_register_flash_ssb(void)

2
target/linux/brcm47xx/patches-3.3/194-MIPS-BCM47XX-read-sprom-without-prefix-if-no-ieee802.patch
View file

@ -1,6 +1,6 @@
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -258,6 +258,8 @@ static int bcm47xx_get_sprom_bcma(struct
@@ -206,6 +206,8 @@ static int bcm47xx_get_sprom_bcma(struct
snprintf(prefix, sizeof(prefix), "sb/%u/",
core->core_index);
bcm47xx_fill_sprom(out, prefix);

6
target/linux/brcm47xx/patches-3.3/195-MIPS-BCM47xx-sprom-read-values-without-prefix-as-fal.patch
View file

@ -1,6 +1,6 @@
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -127,7 +127,7 @@ static int bcm47xx_get_sprom_ssb(struct
@@ -96,7 +96,7 @@ static int bcm47xx_get_sprom_ssb(struct
snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
bus->host_pci->bus->number + 1,
PCI_SLOT(bus->host_pci->devfn));
@ -9,7 +9,7 @@
return 0;
} else {
printk(KERN_WARNING "bcm47xx: unable to fill SPROM for given bustype.\n");
@@ -146,7 +146,7 @@ static int bcm47xx_get_invariants(struct
@@ -115,7 +115,7 @@ static int bcm47xx_get_invariants(struct
bcm47xx_fill_ssb_boardinfo(&iv->boardinfo, NULL);
memset(&iv->sprom, 0, sizeof(struct ssb_sprom));
@ -18,7 +18,7 @@
if (nvram_getenv("cardbus", buf, sizeof(buf)) >= 0)
iv->has_cardbus_slot = !!simple_strtoul(buf, NULL, 10);
@@ -248,18 +248,17 @@ static int bcm47xx_get_sprom_bcma(struct
@@ -196,18 +196,17 @@ static int bcm47xx_get_sprom_bcma(struct
snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
bus->host_pci->bus->number + 1,
PCI_SLOT(bus->host_pci->devfn));

181
target/linux/brcm47xx/patches-3.3/201-bcma-just-do-the-necessary-things-in-early-register.patch
View file

@ -1,181 +0,0 @@
--- a/drivers/bcma/driver_chipcommon.c
+++ b/drivers/bcma/driver_chipcommon.c
@@ -22,12 +22,9 @@ static inline u32 bcma_cc_write32_masked
return value;
}
-void bcma_core_chipcommon_init(struct bcma_drv_cc *cc)
+void bcma_core_chipcommon_early_init(struct bcma_drv_cc *cc)
{
- u32 leddc_on = 10;
- u32 leddc_off = 90;
-
- if (cc->setup_done)
+ if (cc->early_setup_done)
return;
if (cc->core->id.rev >= 11)
@@ -36,6 +33,22 @@ void bcma_core_chipcommon_init(struct bc
if (cc->core->id.rev >= 35)
cc->capabilities_ext = bcma_cc_read32(cc, BCMA_CC_CAP_EXT);
+ if (cc->capabilities & BCMA_CC_CAP_PMU)
+ bcma_pmu_early_init(cc);
+
+ cc->early_setup_done = true;
+}
+
+void bcma_core_chipcommon_init(struct bcma_drv_cc *cc)
+{
+ u32 leddc_on = 10;
+ u32 leddc_off = 90;
+
+ if (cc->setup_done)
+ return;
+
+ bcma_core_chipcommon_early_init(cc);
+
if (cc->core->id.rev >= 20) {
bcma_cc_write32(cc, BCMA_CC_GPIOPULLUP, 0);
bcma_cc_write32(cc, BCMA_CC_GPIOPULLDOWN, 0);
--- a/drivers/bcma/driver_chipcommon_pmu.c
+++ b/drivers/bcma/driver_chipcommon_pmu.c
@@ -141,7 +141,7 @@ void bcma_pmu_workarounds(struct bcma_dr
}
}
-void bcma_pmu_init(struct bcma_drv_cc *cc)
+void bcma_pmu_early_init(struct bcma_drv_cc *cc)
{
u32 pmucap;
@@ -150,7 +150,10 @@ void bcma_pmu_init(struct bcma_drv_cc *c
bcma_debug(cc->core->bus, "Found rev %u PMU (capabilities 0x%08X)\n",
cc->pmu.rev, pmucap);
+}
+void bcma_pmu_init(struct bcma_drv_cc *cc)
+{
if (cc->pmu.rev == 1)
bcma_cc_mask32(cc, BCMA_CC_PMU_CTL,
~BCMA_CC_PMU_CTL_NOILPONW);
--- a/drivers/bcma/driver_mips.c
+++ b/drivers/bcma/driver_mips.c
@@ -222,16 +222,33 @@ static void bcma_core_mips_flash_detect(
}
}
+void bcma_core_mips_early_init(struct bcma_drv_mips *mcore)
+{
+ struct bcma_bus *bus = mcore->core->bus;
+
+ if (mcore->early_setup_done)
+ return;
+
+ bcma_chipco_serial_init(&bus->drv_cc);
+ bcma_core_mips_flash_detect(mcore);
+
+ mcore->early_setup_done = true;
+}
+
void bcma_core_mips_init(struct bcma_drv_mips *mcore)
{
struct bcma_bus *bus;
struct bcma_device *core;
bus = mcore->core->bus;
+ if (mcore->setup_done)
+ return;
+
bcma_info(bus, "Initializing MIPS core...\n");
- if (!mcore->setup_done)
- mcore->assigned_irqs = 1;
+ bcma_core_mips_early_init(mcore);
+
+ mcore->assigned_irqs = 1;
/* Assign IRQs to all cores on the bus */
list_for_each_entry(core, &bus->cores, list) {
@@ -266,10 +283,5 @@ void bcma_core_mips_init(struct bcma_drv
bcma_info(bus, "IRQ reconfiguration done\n");
bcma_core_mips_dump_irq(bus);
- if (mcore->setup_done)
- return;
-
- bcma_chipco_serial_init(&bus->drv_cc);
- bcma_core_mips_flash_detect(mcore);
mcore->setup_done = true;
}
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -247,18 +247,18 @@ int __init bcma_bus_early_register(struc
return -1;
}
- /* Init CC core */
+ /* Early init CC core */
core = bcma_find_core(bus, bcma_cc_core_id(bus));
if (core) {
bus->drv_cc.core = core;
- bcma_core_chipcommon_init(&bus->drv_cc);
+ bcma_core_chipcommon_early_init(&bus->drv_cc);
}
- /* Init MIPS core */
+ /* Early init MIPS core */
core = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
if (core) {
bus->drv_mips.core = core;
- bcma_core_mips_init(&bus->drv_mips);
+ bcma_core_mips_early_init(&bus->drv_mips);
}
bcma_info(bus, "Early bus registered\n");
--- a/include/linux/bcma/bcma_driver_chipcommon.h
+++ b/include/linux/bcma/bcma_driver_chipcommon.h
@@ -476,6 +476,7 @@ struct bcma_drv_cc {
u32 capabilities;
u32 capabilities_ext;
u8 setup_done:1;
+ u8 early_setup_done:1;
/* Fast Powerup Delay constant */
u16 fast_pwrup_delay;
struct bcma_chipcommon_pmu pmu;
@@ -510,6 +511,7 @@ struct bcma_drv_cc {
bcma_cc_write32(cc, offset, (bcma_cc_read32(cc, offset) & (mask)) | (set))
extern void bcma_core_chipcommon_init(struct bcma_drv_cc *cc);
+extern void bcma_core_chipcommon_early_init(struct bcma_drv_cc *cc);
extern void bcma_chipco_suspend(struct bcma_drv_cc *cc);
extern void bcma_chipco_resume(struct bcma_drv_cc *cc);
@@ -533,6 +535,7 @@ u32 bcma_chipco_gpio_polarity(struct bcm
/* PMU support */
extern void bcma_pmu_init(struct bcma_drv_cc *cc);
+extern void bcma_pmu_early_init(struct bcma_drv_cc *cc);
extern void bcma_chipco_pll_write(struct bcma_drv_cc *cc, u32 offset,
u32 value);
--- a/include/linux/bcma/bcma_driver_mips.h
+++ b/include/linux/bcma/bcma_driver_mips.h
@@ -35,13 +35,16 @@ struct bcma_device;
struct bcma_drv_mips {
struct bcma_device *core;
u8 setup_done:1;
+ u8 early_setup_done:1;
unsigned int assigned_irqs;
};
#ifdef CONFIG_BCMA_DRIVER_MIPS
extern void bcma_core_mips_init(struct bcma_drv_mips *mcore);
+extern void bcma_core_mips_early_init(struct bcma_drv_mips *mcore);
#else
static inline void bcma_core_mips_init(struct bcma_drv_mips *mcore) { }
+static inline void bcma_core_mips_early_init(struct bcma_drv_mips *mcore) { }
#endif
extern u32 bcma_cpu_clock(struct bcma_drv_mips *mcore);

37
target/linux/brcm47xx/patches-3.3/202-bcma-init-sprom-struct-earlier.patch
View file

@ -1,37 +0,0 @@
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -165,6 +165,20 @@ int __devinit bcma_bus_register(struct b
return -1;
}
+ /* Early init CC core */
+ core = bcma_find_core(bus, bcma_cc_core_id(bus));
+ if (core) {
+ bus->drv_cc.core = core;
+ bcma_core_chipcommon_early_init(&bus->drv_cc);
+ }
+
+ /* Try to get SPROM */
+ err = bcma_sprom_get(bus);
+ if (err == -ENOENT) {
+ bcma_err(bus, "No SPROM available\n");
+ } else if (err)
+ bcma_err(bus, "Failed to get SPROM: %d\n", err);
+
/* Init CC core */
core = bcma_find_core(bus, bcma_cc_core_id(bus));
if (core) {
@@ -193,13 +207,6 @@ int __devinit bcma_bus_register(struct b
bcma_core_gmac_cmn_init(&bus->drv_gmac_cmn);
}
- /* Try to get SPROM */
- err = bcma_sprom_get(bus);
- if (err == -ENOENT) {
- bcma_err(bus, "No SPROM available\n");
- } else if (err)
- bcma_err(bus, "Failed to get SPROM: %d\n", err);
-
/* Register found cores */
bcma_register_cores(bus);

26
target/linux/brcm47xx/patches-3.3/204-bcma-do-not-initialize-deactivated-PCIe-cores.patch
View file

@ -1,26 +0,0 @@
--- a/drivers/bcma/driver_pci_host.c
+++ b/drivers/bcma/driver_pci_host.c
@@ -35,11 +35,6 @@ bool __devinit bcma_core_pci_is_in_hostm
chipid_top != 0x5300)
return false;
- if (bus->sprom.boardflags_lo & BCMA_CORE_PCI_BFL_NOPCI) {
- bcma_info(bus, "This PCI core is disabled and not working\n");
- return false;
- }
-
bcma_core_enable(pc->core, 0);
return !mips_busprobe32(tmp, pc->core->io_addr);
@@ -396,6 +391,11 @@ void __devinit bcma_core_pci_hostmode_in
bcma_info(bus, "PCIEcore in host mode found\n");
+ if (bus->sprom.boardflags_lo & BCMA_CORE_PCI_BFL_NOPCI) {
+ bcma_info(bus, "This PCIE core is disabled and not working\n");
+ return;
+ }
+
pc_host = kzalloc(sizeof(*pc_host), GFP_KERNEL);
if (!pc_host) {
bcma_err(bus, "can not allocate memory");

8
target/linux/brcm47xx/patches-3.3/280-activate_ssb_support_in_usb.patch
View file

@ -11,12 +11,12 @@ This prevents the options from being delete with make kernel_oldconfig.
depends on BCMA_DRIVER_MIPS
+ select USB_HCD_BCMA if USB_EHCI_HCD || USB_OHCI_HCD
config BCMA_SFLASH
bool
config BCMA_DRIVER_MIPS
bool "BCMA Broadcom MIPS core driver"
--- a/drivers/ssb/Kconfig
+++ b/drivers/ssb/Kconfig
@@ -147,6 +147,7 @@ config SSB_SFLASH
config SSB_EMBEDDED
@@ -146,6 +146,7 @@ config SSB_EMBEDDED
config SSB_SFLASH
bool
depends on SSB_DRIVER_MIPS
+ select USB_HCD_SSB if USB_EHCI_HCD || USB_OHCI_HCD

2
target/linux/brcm47xx/patches-3.3/400-arch-bcm47xx.patch
View file

@ -1,6 +1,6 @@
--- a/arch/mips/bcm47xx/nvram.c
+++ b/arch/mips/bcm47xx/nvram.c
@@ -274,3 +274,30 @@ int nvram_getenv(char *name, char *val,
@@ -183,3 +183,30 @@ int nvram_getenv(char *name, char *val,
return NVRAM_ERR_ENVNOTFOUND;
}
EXPORT_SYMBOL(nvram_getenv);

4
target/linux/brcm47xx/patches-3.3/501-bcma-add-gpio-driver.patch
View file

@ -99,7 +99,7 @@
void bcma_chipco_serial_init(struct bcma_drv_cc *cc)
--- a/include/linux/bcma/bcma_driver_chipcommon.h
+++ b/include/linux/bcma/bcma_driver_chipcommon.h
@@ -495,6 +495,9 @@ struct bcma_drv_cc {
@@ -551,6 +551,9 @@ struct bcma_drv_cc {
int nr_serial_ports;
struct bcma_serial_port serial_ports[4];
#endif /* CONFIG_BCMA_DRIVER_MIPS */
@ -109,7 +109,7 @@
};
/* Register access */
@@ -525,13 +528,22 @@ void bcma_chipco_irq_mask(struct bcma_dr
@@ -581,13 +584,22 @@ void bcma_chipco_irq_mask(struct bcma_dr
u32 bcma_chipco_irq_status(struct bcma_drv_cc *cc, u32 mask);

4
target/linux/brcm47xx/patches-3.3/502-bcm47xx-rewrite-gpio-handling.patch
View file

@ -276,7 +276,7 @@
+EXPORT_SYMBOL(gpio_set_value);
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -346,6 +346,8 @@ void __init plat_mem_setup(void)
@@ -252,6 +252,8 @@ void __init plat_mem_setup(void)
_machine_restart = bcm47xx_machine_restart;
_machine_halt = bcm47xx_machine_halt;
pm_power_off = bcm47xx_machine_halt;
@ -307,7 +307,7 @@
+
if (!request_irq(gpio_to_irq(WGT634U_GPIO_RESET),
gpio_interrupt, IRQF_SHARED,
"WGT634U GPIO", ccore)) {
"WGT634U GPIO", &bcm47xx_bus.ssb.chipco)) {
--- a/arch/mips/include/asm/mach-bcm47xx/bcm47xx.h
+++ b/arch/mips/include/asm/mach-bcm47xx/bcm47xx.h
@@ -56,4 +56,6 @@ void bcm47xx_fill_bcma_boardinfo(struct

16
target/linux/brcm47xx/patches-3.3/812-disable_wgt634u_crap.patch
View file

@ -3,7 +3,7 @@
@@ -4,4 +4,3 @@
#
obj-y += gpio.o irq.o nvram.o prom.o serial.o setup.o time.o sprom.o bus.o
obj-y += gpio.o irq.o nvram.o prom.o serial.o setup.o time.o sprom.o
-obj-$(CONFIG_BCM47XX_SSB) += wgt634u.o
--- a/arch/mips/bcm47xx/wgt634u.c
+++ /dev/null
@ -153,7 +153,7 @@
- if (et0mac[0] == 0x00 &&
- ((et0mac[1] == 0x09 && et0mac[2] == 0x5b) ||
- (et0mac[1] == 0x0f && et0mac[2] == 0xb5))) {
- struct ssb_chipcommon *ccore = &bcm47xx_bus.ssb.chipco;
- struct ssb_mipscore *mcore = &bcm47xx_bus.ssb.mipscore;
-
- printk(KERN_INFO "WGT634U machine detected.\n");
-
@ -165,18 +165,18 @@
-
- if (!request_irq(gpio_to_irq(WGT634U_GPIO_RESET),
- gpio_interrupt, IRQF_SHARED,
- "WGT634U GPIO", ccore)) {
- "WGT634U GPIO", &bcm47xx_bus.ssb.chipco)) {
- gpio_direction_input(WGT634U_GPIO_RESET);
- gpio_intmask(WGT634U_GPIO_RESET, 1);
- ssb_chipco_irq_mask(ccore,
- ssb_chipco_irq_mask(&bcm47xx_bus.ssb.chipco,
- SSB_CHIPCO_IRQ_GPIO,
- SSB_CHIPCO_IRQ_GPIO);
- }
-
- wgt634u_flash_data.width = ccore->pflash.buswidth;
- wgt634u_flash_resource.start = ccore->pflash.window;
- wgt634u_flash_resource.end = ccore->pflash.window
- + ccore->pflash.window_size
- wgt634u_flash_data.width = mcore->pflash.buswidth;
- wgt634u_flash_resource.start = mcore->pflash.window;
- wgt634u_flash_resource.end = mcore->pflash.window
- + mcore->pflash.window_size
- - 1;
- return platform_add_devices(wgt634u_devices,
- ARRAY_SIZE(wgt634u_devices));

26
target/linux/brcm47xx/patches-3.3/820-wgt634u-nvram-fix.patch
View file

@ -9,8 +9,8 @@ out the configuration than the in kernel cfe config reader.
# under Linux.
#
-obj-y += gpio.o irq.o nvram.o prom.o serial.o setup.o time.o sprom.o bus.o
+obj-y += gpio.o irq.o nvram.o prom.o serial.o setup.o time.o sprom.o bus.o cfe_env.o
-obj-y += gpio.o irq.o nvram.o prom.o serial.o setup.o time.o sprom.o
+obj-y += gpio.o irq.o nvram.o prom.o serial.o setup.o time.o sprom.o cfe_env.o
--- /dev/null
+++ b/arch/mips/bcm47xx/cfe_env.c
@@ -0,0 +1,229 @@
@ -245,18 +245,18 @@ out the configuration than the in kernel cfe config reader.
+
--- a/arch/mips/bcm47xx/nvram.c
+++ b/arch/mips/bcm47xx/nvram.c
@@ -25,6 +25,8 @@
#include <linux/mtd/bcm47xx_nand.h>
@@ -22,6 +22,8 @@
#include <asm/mach-bcm47xx/bcm47xx.h>
static char nvram_buf[NVRAM_SPACE];
+static int cfe_env;
+extern char *cfe_env_get(char *nv_buf, const char *name);
/* Probe for NVRAM header */
static void early_nvram_init_pflash(void)
@@ -58,6 +60,25 @@ static void early_nvram_init_pflash(void
break;
#endif
static u32 find_nvram_size(u32 end)
{
@@ -59,6 +61,25 @@ static void early_nvram_init_fill(u32 ba
}
off <<= 1;
}
+ cfe_env = 0;
+
@ -278,9 +278,9 @@ out the configuration than the in kernel cfe config reader.
+ }
+ }
off = FLASH_MIN;
while (off <= lim) {
@@ -257,6 +278,12 @@ int nvram_getenv(char *name, char *val,
/* Try embedded NVRAM at 4 KB and 1 KB as last resorts */
header = (struct nvram_header *) KSEG1ADDR(base + 4096);
@@ -166,6 +187,12 @@ int nvram_getenv(char *name, char *val,
if (!nvram_buf[0])
early_nvram_init();
@ -293,7 +293,7 @@ out the configuration than the in kernel cfe config reader.
/* Look for name=value and return value */
var = &nvram_buf[sizeof(struct nvram_header)];
end = nvram_buf + sizeof(nvram_buf) - 2;
@@ -285,6 +312,9 @@ char *nvram_get(const char *name)
@@ -194,6 +221,9 @@ char *nvram_get(const char *name)
if (!nvram_buf[0])
early_nvram_init();

2
target/linux/brcm47xx/patches-3.3/980-wnr834b_no_cardbus_invariant.patch
View file

@ -1,6 +1,6 @@
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -151,6 +151,10 @@ static int bcm47xx_get_invariants(struct
@@ -120,6 +120,10 @@ static int bcm47xx_get_invariants(struct
if (nvram_getenv("cardbus", buf, sizeof(buf)) >= 0)
iv->has_cardbus_slot = !!simple_strtoul(buf, NULL, 10);

6
target/linux/brcm47xx/patches-3.3/999-wl_exports.patch
View file

@ -1,8 +1,8 @@
--- a/arch/mips/bcm47xx/nvram.c
+++ b/arch/mips/bcm47xx/nvram.c
@@ -24,7 +24,8 @@
#include <asm/mach-bcm47xx/bus.h>
#include <linux/mtd/bcm47xx_nand.h>
@@ -21,7 +21,8 @@
#include <asm/mach-bcm47xx/nvram.h>
#include <asm/mach-bcm47xx/bcm47xx.h>
-static char nvram_buf[NVRAM_SPACE];
+char nvram_buf[NVRAM_SPACE];

82
target/linux/generic/patches-3.3/020-ssb_update.patch
View file

@ -100,7 +100,48 @@
+}
--- a/drivers/ssb/driver_mipscore.c
+++ b/drivers/ssb/driver_mipscore.c
@@ -208,6 +208,9 @@ u32 ssb_cpu_clock(struct ssb_mipscore *m
@@ -190,16 +190,32 @@ static void ssb_mips_flash_detect(struct
{
struct ssb_bus *bus = mcore->dev->bus;
- mcore->flash_buswidth = 2;
- if (bus->chipco.dev) {
- mcore->flash_window = 0x1c000000;
- mcore->flash_window_size = 0x02000000;
+ /* When there is no chipcommon on the bus there is 4MB flash */
+ if (!bus->chipco.dev) {
+ mcore->pflash.present = true;
+ mcore->pflash.buswidth = 2;
+ mcore->pflash.window = SSB_FLASH1;
+ mcore->pflash.window_size = SSB_FLASH1_SZ;
+ return;
+ }
+
+ /* There is ChipCommon, so use it to read info about flash */
+ switch (bus->chipco.capabilities & SSB_CHIPCO_CAP_FLASHT) {
+ case SSB_CHIPCO_FLASHT_STSER:
+ case SSB_CHIPCO_FLASHT_ATSER:
+ pr_err("Serial flash not supported\n");
+ break;
+ case SSB_CHIPCO_FLASHT_PARA:
+ pr_debug("Found parallel flash\n");
+ mcore->pflash.present = true;
+ mcore->pflash.window = SSB_FLASH2;
+ mcore->pflash.window_size = SSB_FLASH2_SZ;
if ((ssb_read32(bus->chipco.dev, SSB_CHIPCO_FLASH_CFG)
& SSB_CHIPCO_CFG_DS16) == 0)
- mcore->flash_buswidth = 1;
- } else {
- mcore->flash_window = 0x1fc00000;
- mcore->flash_window_size = 0x00400000;
+ mcore->pflash.buswidth = 1;
+ else
+ mcore->pflash.buswidth = 2;
+ break;
}
}
@@ -208,6 +224,9 @@ u32 ssb_cpu_clock(struct ssb_mipscore *m
struct ssb_bus *bus = mcore->dev->bus;
u32 pll_type, n, m, rate = 0;
@ -673,6 +714,19 @@
/* Vendor-ID values */
#define SSB_VENDOR_BROADCOM 0x4243
--- a/include/linux/ssb/ssb_driver_chipcommon.h
+++ b/include/linux/ssb/ssb_driver_chipcommon.h
@@ -504,7 +504,9 @@
#define SSB_CHIPCO_FLASHCTL_ST_SE 0x02D8 /* Sector Erase */
#define SSB_CHIPCO_FLASHCTL_ST_BE 0x00C7 /* Bulk Erase */
#define SSB_CHIPCO_FLASHCTL_ST_DP 0x00B9 /* Deep Power-down */
-#define SSB_CHIPCO_FLASHCTL_ST_RSIG 0x03AB /* Read Electronic Signature */
+#define SSB_CHIPCO_FLASHCTL_ST_RES 0x03AB /* Read Electronic Signature */
+#define SSB_CHIPCO_FLASHCTL_ST_CSA 0x1000 /* Keep chip select asserted */
+#define SSB_CHIPCO_FLASHCTL_ST_SSE 0x0220 /* Sub-sector Erase */
/* Status register bits for ST flashes */
#define SSB_CHIPCO_FLASHSTA_ST_WIP 0x01 /* Write In Progress */
--- a/include/linux/ssb/ssb_driver_gige.h
+++ b/include/linux/ssb/ssb_driver_gige.h
@@ -2,6 +2,7 @@
@ -683,6 +737,32 @@
#include <linux/pci.h>
#include <linux/spinlock.h>
--- a/include/linux/ssb/ssb_driver_mips.h
+++ b/include/linux/ssb/ssb_driver_mips.h
@@ -13,6 +13,12 @@ struct ssb_serial_port {
unsigned int reg_shift;
};
+struct ssb_pflash {
+ bool present;
+ u8 buswidth;
+ u32 window;
+ u32 window_size;
+};
struct ssb_mipscore {
struct ssb_device *dev;
@@ -20,9 +26,7 @@ struct ssb_mipscore {
int nr_serial_ports;
struct ssb_serial_port serial_ports[4];
- u8 flash_buswidth;
- u32 flash_window;
- u32 flash_window_size;
+ struct ssb_pflash pflash;
};
extern void ssb_mipscore_init(struct ssb_mipscore *mcore);
--- a/include/linux/ssb/ssb_regs.h
+++ b/include/linux/ssb/ssb_regs.h
@@ -228,6 +228,7 @@

1247
target/linux/generic/patches-3.3/025-bcma_backport.patch
View file

File diff suppressed because it is too large Load diff

29
target/linux/generic/patches-3.3/026-bcma_pmu_regression.patch
View file

@ -1,29 +0,0 @@
--- a/drivers/bcma/driver_chipcommon_pmu.c
+++ b/drivers/bcma/driver_chipcommon_pmu.c
@@ -110,7 +110,7 @@ void bcma_pmu_workarounds(struct bcma_dr
/* enable 12 mA drive strenth for 4313 and set chipControl
register bit 1 */
bcma_chipco_chipctl_maskset(cc, 0,
- BCMA_CCTRL_4313_12MA_LED_DRIVE,
+ ~BCMA_CCTRL_4313_12MA_LED_DRIVE,
BCMA_CCTRL_4313_12MA_LED_DRIVE);
break;
case BCMA_CHIP_ID_BCM4331:
@@ -124,14 +124,14 @@ void bcma_pmu_workarounds(struct bcma_dr
register bit 15 */
if (bus->chipinfo.rev == 0) {
bcma_cc_maskset32(cc, BCMA_CC_CHIPCTL,
- BCMA_CCTRL_43224_GPIO_TOGGLE,
+ ~BCMA_CCTRL_43224_GPIO_TOGGLE,
BCMA_CCTRL_43224_GPIO_TOGGLE);
bcma_chipco_chipctl_maskset(cc, 0,
- BCMA_CCTRL_43224A0_12MA_LED_DRIVE,
+ ~BCMA_CCTRL_43224A0_12MA_LED_DRIVE,
BCMA_CCTRL_43224A0_12MA_LED_DRIVE);
} else {
bcma_chipco_chipctl_maskset(cc, 0,
- BCMA_CCTRL_43224B0_12MA_LED_DRIVE,
+ ~BCMA_CCTRL_43224B0_12MA_LED_DRIVE,
BCMA_CCTRL_43224B0_12MA_LED_DRIVE);
}
break;

55
target/linux/generic/patches-3.3/027-bcma-add-missing-iounmap-on-error-path.patch
View file

@ -1,55 +0,0 @@
--- a/drivers/bcma/scan.c
+++ b/drivers/bcma/scan.c
@@ -462,8 +462,10 @@ int bcma_bus_scan(struct bcma_bus *bus)
while (eromptr < eromend) {
struct bcma_device *other_core;
struct bcma_device *core = kzalloc(sizeof(*core), GFP_KERNEL);
- if (!core)
- return -ENOMEM;
+ if (!core) {
+ err = -ENOMEM;
+ goto out;
+ }
INIT_LIST_HEAD(&core->list);
core->bus = bus;
@@ -478,7 +480,7 @@ int bcma_bus_scan(struct bcma_bus *bus)
} else if (err == -ESPIPE) {
break;
}
- return err;
+ goto out;
}
core->core_index = core_num++;
@@ -494,10 +496,12 @@ int bcma_bus_scan(struct bcma_bus *bus)
list_add_tail(&core->list, &bus->cores);
}
+ err = 0;
+out:
if (bus->hosttype == BCMA_HOSTTYPE_SOC)
iounmap(eromptr);
- return 0;
+ return err;
}
int __init bcma_bus_scan_early(struct bcma_bus *bus,
@@ -537,7 +541,7 @@ int __init bcma_bus_scan_early(struct bc
else if (err == -ESPIPE)
break;
else if (err < 0)
- return err;
+ goto out;
core->core_index = core_num++;
bus->nr_cores++;
@@ -551,6 +555,7 @@ int __init bcma_bus_scan_early(struct bc
break;
}
+out:
if (bus->hosttype == BCMA_HOSTTYPE_SOC)
iounmap(eromptr);

29
target/linux/generic/patches-3.3/028-bcma-fix-regression-in-interrupt-assignment-on-mips.patch
View file

@ -1,29 +0,0 @@
--- a/drivers/bcma/driver_mips.c
+++ b/drivers/bcma/driver_mips.c
@@ -131,7 +131,7 @@ static void bcma_core_mips_set_irq(struc
/* backplane irq line is in use, find out who uses
* it and set user to irq 0
*/
- list_for_each_entry_reverse(core, &bus->cores, list) {
+ list_for_each_entry(core, &bus->cores, list) {
if ((1 << bcma_core_mips_irqflag(core)) ==
oldirqflag) {
bcma_core_mips_set_irq(core, 0);
@@ -161,7 +161,7 @@ static void bcma_core_mips_dump_irq(stru
{
struct bcma_device *core;
- list_for_each_entry_reverse(core, &bus->cores, list) {
+ list_for_each_entry(core, &bus->cores, list) {
bcma_core_mips_print_irq(core, bcma_core_mips_irq(core));
}
}
@@ -215,7 +215,7 @@ void bcma_core_mips_init(struct bcma_drv
mcore->assigned_irqs = 1;
/* Assign IRQs to all cores on the bus */
- list_for_each_entry_reverse(core, &bus->cores, list) {
+ list_for_each_entry(core, &bus->cores, list) {
int mips_irq;
if (core->irq)
continue;

15
target/linux/generic/patches-3.3/029-bcma-use-fallback-sprom-if-sprom-on-card-was-not-val.patch
View file

@ -1,15 +0,0 @@
--- a/drivers/bcma/sprom.c
+++ b/drivers/bcma/sprom.c
@@ -591,8 +591,11 @@ int bcma_sprom_get(struct bcma_bus *bus)
bcma_chipco_bcm4331_ext_pa_lines_ctl(&bus->drv_cc, true);
err = bcma_sprom_valid(sprom);
- if (err)
+ if (err) {
+ bcma_warn(bus, "invalid sprom read from the PCIe card, try to use fallback sprom\n");
+ err = bcma_fill_sprom_with_fallback(bus, &bus->sprom);
goto out;
+ }
bcma_sprom_extract_r8(bus, sprom);

82
target/linux/generic/patches-3.6/020-ssb_update.patch Normal file
View file

@ -0,0 +1,82 @@
--- a/drivers/ssb/driver_mipscore.c
+++ b/drivers/ssb/driver_mipscore.c
@@ -190,16 +190,32 @@ static void ssb_mips_flash_detect(struct
{
struct ssb_bus *bus = mcore->dev->bus;
- mcore->flash_buswidth = 2;
- if (bus->chipco.dev) {
- mcore->flash_window = 0x1c000000;
- mcore->flash_window_size = 0x02000000;
+ /* When there is no chipcommon on the bus there is 4MB flash */
+ if (!bus->chipco.dev) {
+ mcore->pflash.present = true;
+ mcore->pflash.buswidth = 2;
+ mcore->pflash.window = SSB_FLASH1;
+ mcore->pflash.window_size = SSB_FLASH1_SZ;
+ return;
+ }
+
+ /* There is ChipCommon, so use it to read info about flash */
+ switch (bus->chipco.capabilities & SSB_CHIPCO_CAP_FLASHT) {
+ case SSB_CHIPCO_FLASHT_STSER:
+ case SSB_CHIPCO_FLASHT_ATSER:
+ pr_err("Serial flash not supported\n");
+ break;
+ case SSB_CHIPCO_FLASHT_PARA:
+ pr_debug("Found parallel flash\n");
+ mcore->pflash.present = true;
+ mcore->pflash.window = SSB_FLASH2;
+ mcore->pflash.window_size = SSB_FLASH2_SZ;
if ((ssb_read32(bus->chipco.dev, SSB_CHIPCO_FLASH_CFG)
& SSB_CHIPCO_CFG_DS16) == 0)
- mcore->flash_buswidth = 1;
- } else {
- mcore->flash_window = 0x1fc00000;
- mcore->flash_window_size = 0x00400000;
+ mcore->pflash.buswidth = 1;
+ else
+ mcore->pflash.buswidth = 2;
+ break;
}
}
--- a/include/linux/ssb/ssb_driver_chipcommon.h
+++ b/include/linux/ssb/ssb_driver_chipcommon.h
@@ -504,7 +504,9 @@
#define SSB_CHIPCO_FLASHCTL_ST_SE 0x02D8 /* Sector Erase */
#define SSB_CHIPCO_FLASHCTL_ST_BE 0x00C7 /* Bulk Erase */
#define SSB_CHIPCO_FLASHCTL_ST_DP 0x00B9 /* Deep Power-down */
-#define SSB_CHIPCO_FLASHCTL_ST_RSIG 0x03AB /* Read Electronic Signature */
+#define SSB_CHIPCO_FLASHCTL_ST_RES 0x03AB /* Read Electronic Signature */
+#define SSB_CHIPCO_FLASHCTL_ST_CSA 0x1000 /* Keep chip select asserted */
+#define SSB_CHIPCO_FLASHCTL_ST_SSE 0x0220 /* Sub-sector Erase */
/* Status register bits for ST flashes */
#define SSB_CHIPCO_FLASHSTA_ST_WIP 0x01 /* Write In Progress */
--- a/include/linux/ssb/ssb_driver_mips.h
+++ b/include/linux/ssb/ssb_driver_mips.h
@@ -13,6 +13,12 @@ struct ssb_serial_port {
unsigned int reg_shift;
};
+struct ssb_pflash {
+ bool present;
+ u8 buswidth;
+ u32 window;
+ u32 window_size;
+};
struct ssb_mipscore {
struct ssb_device *dev;
@@ -20,9 +26,7 @@ struct ssb_mipscore {
int nr_serial_ports;
struct ssb_serial_port serial_ports[4];
- u8 flash_buswidth;
- u32 flash_window;
- u32 flash_window_size;
+ struct ssb_pflash pflash;
};
extern void ssb_mipscore_init(struct ssb_mipscore *mcore);

1035
target/linux/generic/patches-3.6/025-bcma_backport.patch Normal file
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