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experimental support for 2.6.27

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SVN-Revision: 12932
This commit is contained in:
Gabor Juhos 2008-10-09 08:08:13 +00:00
parent 1f819de60e
commit efc3f8a1ef
11 changed files with 595 additions and 0 deletions
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235
target/linux/atheros/config-2.6.27 Normal file
View file

@ -0,0 +1,235 @@
CONFIG_32BIT=y
# CONFIG_64BIT is not set
CONFIG_AR2313=y
# CONFIG_ARCH_HAS_ILOG2_U32 is not set
# CONFIG_ARCH_HAS_ILOG2_U64 is not set
CONFIG_ARCH_POPULATES_NODE_MAP=y
# CONFIG_ARCH_SUPPORTS_MSI is not set
CONFIG_ARCH_SUPPORTS_OPROFILE=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ATHEROS=y
CONFIG_ATHEROS_AR5312=y
CONFIG_ATHEROS_AR5315=y
CONFIG_ATHEROS_AR5315_PCI=y
CONFIG_ATHEROS_WDT=y
# CONFIG_ATM is not set
# CONFIG_ATMEL is not set
CONFIG_BASE_SMALL=0
# CONFIG_BCM47XX is not set
CONFIG_BITREVERSE=y
# CONFIG_BROADCOM_PHY is not set
# CONFIG_BT is not set
CONFIG_CEVT_R4K=y
CONFIG_CLASSIC_RCU=y
CONFIG_CMDLINE="console=ttyS0,9600 rootfstype=squashfs,jffs2 init=/etc/preinit"
CONFIG_CPU_BIG_ENDIAN=y
CONFIG_CPU_HAS_LLSC=y
CONFIG_CPU_HAS_PREFETCH=y
CONFIG_CPU_HAS_SYNC=y
# CONFIG_CPU_LITTLE_ENDIAN is not set
# CONFIG_CPU_LOONGSON2 is not set
CONFIG_CPU_MIPS32=y
CONFIG_CPU_MIPS32_R1=y
# CONFIG_CPU_MIPS32_R2 is not set
# CONFIG_CPU_MIPS64_R1 is not set
# CONFIG_CPU_MIPS64_R2 is not set
CONFIG_CPU_MIPSR1=y
# CONFIG_CPU_NEVADA is not set
# CONFIG_CPU_R10000 is not set
# CONFIG_CPU_R3000 is not set
# CONFIG_CPU_R4300 is not set
# CONFIG_CPU_R4X00 is not set
# CONFIG_CPU_R5000 is not set
# CONFIG_CPU_R5432 is not set
# CONFIG_CPU_R6000 is not set
# CONFIG_CPU_R8000 is not set
# CONFIG_CPU_RM7000 is not set
# CONFIG_CPU_RM9000 is not set
# CONFIG_CPU_SB1 is not set
CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y
CONFIG_CPU_SUPPORTS_HIGHMEM=y
# CONFIG_CPU_TX39XX is not set
# CONFIG_CPU_TX49XX is not set
# CONFIG_CPU_VR41XX is not set
CONFIG_CSRC_R4K=y
CONFIG_DEVPORT=y
# CONFIG_DM9000 is not set
CONFIG_DMA_NEED_PCI_MAP_STATE=y
CONFIG_DMA_NONCOHERENT=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_FIRMWARE_IN_KERNEL is not set
# CONFIG_FIXED_PHY is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
CONFIG_GENERIC_CMOS_UPDATE=y
# CONFIG_GENERIC_FIND_FIRST_BIT is not set
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_GENERIC_GPIO=y
# CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ is not set
CONFIG_GPIO_DEVICE=y
CONFIG_HAS_DMA=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_HAVE_ARCH_TRACEHOOK is not set
# CONFIG_HAVE_CLK is not set
# CONFIG_HAVE_DMA_ATTRS is not set
# CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS is not set
# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
CONFIG_HAVE_IDE=y
# CONFIG_HAVE_IOREMAP_PROT is not set
# CONFIG_HAVE_KPROBES is not set
# CONFIG_HAVE_KRETPROBES is not set
CONFIG_HAVE_OPROFILE=y
# CONFIG_HERMES is not set
CONFIG_HW_HAS_PCI=y
CONFIG_HW_RANDOM=y
# CONFIG_I2C is not set
CONFIG_ICPLUS_PHY=y
# CONFIG_IDE is not set
CONFIG_INITRAMFS_SOURCE=""
# CONFIG_IPW2100 is not set
# CONFIG_IPW2200 is not set
CONFIG_IRQ_CPU=y
# CONFIG_ISDN is not set
CONFIG_KMOD=y
# CONFIG_LEDS_ALIX is not set
CONFIG_LEDS_GPIO=y
# CONFIG_LEMOTE_FULONG is not set
# CONFIG_MACH_ALCHEMY is not set
# CONFIG_MACH_DECSTATION is not set
# CONFIG_MACH_JAZZ is not set
# CONFIG_MACH_TX39XX is not set
# CONFIG_MACH_TX49XX is not set
# CONFIG_MACH_VR41XX is not set
# CONFIG_MDIO_BITBANG is not set
# CONFIG_MFD_CORE is not set
# CONFIG_MFD_TMIO is not set
# CONFIG_MIKROTIK_RB532 is not set
CONFIG_MIPS=y
# CONFIG_MIPS_COBALT is not set
CONFIG_MIPS_L1_CACHE_SHIFT=5
# CONFIG_MIPS_MALTA is not set
CONFIG_MIPS_MT_DISABLED=y
# CONFIG_MIPS_MT_SMP is not set
# CONFIG_MIPS_MT_SMTC is not set
# CONFIG_MIPS_SIM is not set
CONFIG_MTD=y
# CONFIG_MTD_ABSENT is not set
CONFIG_MTD_BLKDEVS=y
CONFIG_MTD_BLOCK=y
# CONFIG_MTD_BLOCK2MTD is not set
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
CONFIG_MTD_CFI_AMDSTD=y
# CONFIG_MTD_CFI_BE_BYTE_SWAP is not set
# CONFIG_MTD_CFI_GEOMETRY is not set
CONFIG_MTD_CFI_I1=y
CONFIG_MTD_CFI_I2=y
# CONFIG_MTD_CFI_I4 is not set
# CONFIG_MTD_CFI_I8 is not set
# CONFIG_MTD_CFI_INTELEXT is not set
# CONFIG_MTD_CFI_LE_BYTE_SWAP is not set
CONFIG_MTD_CFI_NOSWAP=y
# CONFIG_MTD_CFI_STAA is not set
CONFIG_MTD_CFI_UTIL=y
CONFIG_MTD_CHAR=y
# CONFIG_MTD_CMDLINE_PARTS is not set
CONFIG_MTD_COMPLEX_MAPPINGS=y
# CONFIG_MTD_CONCAT is not set
CONFIG_MTD_GEN_PROBE=y
# CONFIG_MTD_JEDECPROBE is not set
CONFIG_MTD_MAP_BANK_WIDTH_1=y
# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
CONFIG_MTD_MAP_BANK_WIDTH_2=y
# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
CONFIG_MTD_MAP_BANK_WIDTH_4=y
# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
# CONFIG_MTD_MTDRAM is not set
# CONFIG_MTD_ONENAND is not set
# CONFIG_MTD_OTP is not set
CONFIG_MTD_PARTITIONS=y
# CONFIG_MTD_PCI is not set
# CONFIG_MTD_PHRAM is not set
CONFIG_MTD_PHYSMAP=y
CONFIG_MTD_PHYSMAP_BANKWIDTH=0
CONFIG_MTD_PHYSMAP_LEN=0x0
CONFIG_MTD_PHYSMAP_START=0x0
# CONFIG_MTD_PLATRAM is not set
# CONFIG_MTD_PMC551 is not set
# CONFIG_MTD_RAM is not set
CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-3
CONFIG_MTD_REDBOOT_PARTS=y
CONFIG_MTD_REDBOOT_PARTS_READONLY=y
# CONFIG_MTD_ROM is not set
# CONFIG_MTD_SLRAM is not set
CONFIG_MTD_SPIFLASH=y
CONFIG_MVSWITCH_PHY=y
# CONFIG_NET_PCI is not set
CONFIG_NF_CT_ACCT=y
# CONFIG_NO_IOPORT is not set
CONFIG_PAGEFLAGS_EXTENDED=y
# CONFIG_PAGE_SIZE_16KB is not set
CONFIG_PAGE_SIZE_4KB=y
# CONFIG_PAGE_SIZE_64KB is not set
# CONFIG_PAGE_SIZE_8KB is not set
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
# CONFIG_PCSPKR_PLATFORM is not set
CONFIG_PHYLIB=y
# CONFIG_PMC_MSP is not set
# CONFIG_PMC_YOSEMITE is not set
# CONFIG_PNX8550_JBS is not set
# CONFIG_PNX8550_STB810 is not set
# CONFIG_PROBE_INITRD_HEADER is not set
# CONFIG_QSEMI_PHY is not set
# CONFIG_REALTEK_PHY is not set
CONFIG_RFKILL_LEDS=y
CONFIG_RTC_LIB=y
CONFIG_RWSEM_GENERIC_SPINLOCK=y
CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
CONFIG_SCSI_WAIT_SCAN=m
# CONFIG_SERIAL_8250_EXTENDED is not set
CONFIG_SERIAL_8250_NR_UARTS=1
CONFIG_SERIAL_8250_RUNTIME_UARTS=1
# CONFIG_SGI_IP22 is not set
# CONFIG_SGI_IP27 is not set
# CONFIG_SGI_IP28 is not set
# CONFIG_SGI_IP32 is not set
# CONFIG_SIBYTE_BIGSUR is not set
# CONFIG_SIBYTE_CARMEL is not set
# CONFIG_SIBYTE_CRHINE is not set
# CONFIG_SIBYTE_CRHONE is not set
# CONFIG_SIBYTE_LITTLESUR is not set
# CONFIG_SIBYTE_RHONE is not set
# CONFIG_SIBYTE_SENTOSA is not set
# CONFIG_SIBYTE_SWARM is not set
# CONFIG_SMSC_PHY is not set
CONFIG_SND_MIPS=y
CONFIG_SND_USB=y
# CONFIG_SOFT_WATCHDOG is not set
# CONFIG_SPARSEMEM_STATIC is not set
# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
CONFIG_SSB_POSSIBLE=y
CONFIG_SYSVIPC_SYSCTL=y
CONFIG_SYS_HAS_CPU_MIPS32_R1=y
CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y
CONFIG_SYS_SUPPORTS_ARBIT_HZ=y
CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y
# CONFIG_THERMAL is not set
# CONFIG_THERMAL_HWMON is not set
CONFIG_TICK_ONESHOT=y
CONFIG_TRAD_SIGNALS=y
CONFIG_USB=m
# CONFIG_USB_EHCI_HCD is not set
CONFIG_USB_STORAGE_CYPRESS_ATACB=y
CONFIG_USB_SUPPORT=y
# CONFIG_USB_UHCI_HCD is not set
CONFIG_USB_WDM=m
# CONFIG_VGASTATE is not set
CONFIG_VIDEO_MEDIA=m
CONFIG_VIDEO_V4L2=m
CONFIG_VIDEO_V4L2_COMMON=m
# CONFIG_VLAN_8021Q_GVRP is not set
CONFIG_ZONE_DMA_FLAG=0

66
target/linux/atheros/patches-2.6.27/100-board.patch Normal file
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@ -0,0 +1,66 @@
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -59,6 +59,18 @@
help
Support for BCM47XX based boards
+config ATHEROS
+ bool "Atheros SoC support (EXPERIMENTAL)"
+ depends on EXPERIMENTAL
+ select DMA_NONCOHERENT
+ select CEVT_R4K
+ select CSRC_R4K
+ select IRQ_CPU
+ select SYS_HAS_CPU_MIPS32_R1
+ select SYS_SUPPORTS_BIG_ENDIAN
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select GENERIC_GPIO
+
config MIPS_COBALT
bool "Cobalt Server"
select CEVT_R4K
@@ -598,6 +610,7 @@
endchoice
+source "arch/mips/atheros/Kconfig"
source "arch/mips/au1000/Kconfig"
source "arch/mips/basler/excite/Kconfig"
source "arch/mips/jazz/Kconfig"
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -276,6 +276,13 @@
load-$(CONFIG_MIPS_XXS1500) += 0xffffffff80100000
#
+# Atheros AR5312/AR2312 WiSoC
+#
+core-$(CONFIG_ATHEROS) += arch/mips/atheros/
+cflags-$(CONFIG_ATHEROS) += -Iinclude/asm-mips/mach-atheros
+load-$(CONFIG_ATHEROS) += 0xffffffff80041000
+
+#
# Cobalt Server
#
core-$(CONFIG_MIPS_COBALT) += arch/mips/cobalt/
--- a/include/asm-mips/bootinfo.h
+++ b/include/asm-mips/bootinfo.h
@@ -57,6 +57,18 @@
#define MACH_MIKROTIK_RB532 0 /* Mikrotik RouterBoard 532 */
#define MACH_MIKROTIK_RB532A 1 /* Mikrotik RouterBoard 532A */
+/*
+ * Valid machtype for group ATHEROS
+ */
+#define MACH_GROUP_ATHEROS 26
+#define MACH_ATHEROS_AR5312 0
+#define MACH_ATHEROS_AR2312 1
+#define MACH_ATHEROS_AR2313 2
+#define MACH_ATHEROS_AR2315 3
+#define MACH_ATHEROS_AR2316 4
+#define MACH_ATHEROS_AR2317 5
+#define MACH_ATHEROS_AR2318 6
+
#define CL_SIZE COMMAND_LINE_SIZE
extern char *system_type;

20
target/linux/atheros/patches-2.6.27/110-spiflash.patch Normal file
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@ -0,0 +1,20 @@
--- a/drivers/mtd/devices/Kconfig
+++ b/drivers/mtd/devices/Kconfig
@@ -83,6 +83,10 @@
help
This option enables FAST_READ access supported by ST M25Pxx.
+config MTD_SPIFLASH
+ tristate "Atheros AR2315/6/7 SPI Flash support"
+ depends on ATHEROS_AR5315
+
config MTD_SLRAM
tristate "Uncached system RAM"
help
--- a/drivers/mtd/devices/Makefile
+++ b/drivers/mtd/devices/Makefile
@@ -16,3 +16,4 @@
obj-$(CONFIG_MTD_BLOCK2MTD) += block2mtd.o
obj-$(CONFIG_MTD_DATAFLASH) += mtd_dataflash.o
obj-$(CONFIG_MTD_M25P80) += m25p80.o
+obj-$(CONFIG_MTD_SPIFLASH) += spiflash.o

25
target/linux/atheros/patches-2.6.27/120-watchdog.patch Normal file
View file

@ -0,0 +1,25 @@
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -704,6 +704,12 @@
help
Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
+config ATHEROS_WDT
+ tristate "Atheros wisoc Watchdog Timer"
+ depends on ATHEROS
+ help
+ Hardware driver for the Atheros wisoc Watchdog Timer.
+
# PARISC Architecture
# POWERPC Architecture
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -102,6 +102,7 @@
obj-$(CONFIG_SIBYTE_WDOG) += sb_wdog.o
obj-$(CONFIG_AR7_WDT) += ar7_wdt.o
obj-$(CONFIG_TXX9_WDT) += txx9wdt.o
+obj-$(CONFIG_ATHEROS_WDT) += ar2315-wtd.o
# PARISC Architecture

25
target/linux/atheros/patches-2.6.27/130-ar2313_ethernet.patch Normal file
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@ -0,0 +1,25 @@
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -359,6 +359,12 @@
help
Select this if your platform comes with an external 93CX6 eeprom.
+config AR2313
+ tristate "AR2313 Ethernet support"
+ depends on NET_ETHERNET && ATHEROS
+ help
+ Support for the AR231x/531x ethernet controller
+
config MACE
tristate "MACE (Power Mac ethernet) support"
depends on PPC_PMAC && PPC32
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -195,6 +195,7 @@
obj-$(CONFIG_KORINA) += korina.o
obj-$(CONFIG_MIPS_JAZZ_SONIC) += jazzsonic.o
obj-$(CONFIG_MIPS_AU1X00_ENET) += au1000_eth.o
+obj-$(CONFIG_AR2313) += ar2313/
obj-$(CONFIG_MIPS_SIM_NET) += mipsnet.o
obj-$(CONFIG_SGI_IOC3_ETH) += ioc3-eth.o
obj-$(CONFIG_DECLANCE) += declance.o

11
target/linux/atheros/patches-2.6.27/135-ar2313_2.6.26.patch Normal file
View file

@ -0,0 +1,11 @@
--- a/drivers/net/ar2313/ar2313.c
+++ b/drivers/net/ar2313/ar2313.c
@@ -291,7 +291,7 @@
sp->mii_bus.write = mdiobus_write;
sp->mii_bus.reset = mdiobus_reset;
sp->mii_bus.name = "ar2313_eth_mii";
- sp->mii_bus.id = 0;
+ snprintf(sp->mii_bus.id, MII_BUS_ID_SIZE, "0");
sp->mii_bus.irq = kmalloc(sizeof(int), GFP_KERNEL);
*sp->mii_bus.irq = PHY_POLL;

54
target/linux/atheros/patches-2.6.27/140-redboot_partition_scan.patch Normal file
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@ -0,0 +1,54 @@
--- a/drivers/mtd/redboot.c
+++ b/drivers/mtd/redboot.c
@@ -60,31 +60,32 @@
static char nullstring[] = "unallocated";
#endif
+ buf = vmalloc(master->erasesize);
+ if (!buf)
+ return -ENOMEM;
+
+ restart:
if ( directory < 0 ) {
offset = master->size + directory * master->erasesize;
- while (master->block_isbad &&
+ while (master->block_isbad &&
master->block_isbad(master, offset)) {
if (!offset) {
nogood:
printk(KERN_NOTICE "Failed to find a non-bad block to check for RedBoot partition table\n");
+ vfree(buf);
return -EIO;
}
offset -= master->erasesize;
}
} else {
offset = directory * master->erasesize;
- while (master->block_isbad &&
+ while (master->block_isbad &&
master->block_isbad(master, offset)) {
offset += master->erasesize;
if (offset == master->size)
goto nogood;
}
}
- buf = vmalloc(master->erasesize);
-
- if (!buf)
- return -ENOMEM;
-
printk(KERN_NOTICE "Searching for RedBoot partition table in %s at offset 0x%lx\n",
master->name, offset);
@@ -156,6 +157,11 @@
}
if (i == numslots) {
/* Didn't find it */
+ if (offset + master->erasesize < master->size) {
+ /* not at the end of the flash yet, maybe next block :) */
+ directory++;
+ goto restart;
+ }
printk(KERN_NOTICE "No RedBoot partition table detected in %s\n",
master->name);
ret = 0;

26
target/linux/atheros/patches-2.6.27/150-bridge-printk.patch Normal file
View file

@ -0,0 +1,26 @@
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -3983,8 +3983,8 @@
/* Fix illegal SG+CSUM combinations. */
if ((dev->features & NETIF_F_SG) &&
!(dev->features & NETIF_F_ALL_CSUM)) {
- printk(KERN_NOTICE "%s: Dropping NETIF_F_SG since no checksum feature.\n",
- dev->name);
+ //printk(KERN_NOTICE "%s: Dropping NETIF_F_SG since no checksum feature.\n",
+ // dev->name);
dev->features &= ~NETIF_F_SG;
}
@@ -3997,9 +3997,9 @@
}
if (dev->features & NETIF_F_UFO) {
if (!(dev->features & NETIF_F_HW_CSUM)) {
- printk(KERN_ERR "%s: Dropping NETIF_F_UFO since no "
- "NETIF_F_HW_CSUM feature.\n",
- dev->name);
+ //printk(KERN_ERR "%s: Dropping NETIF_F_UFO since no "
+ // "NETIF_F_HW_CSUM feature.\n",
+ // dev->name);
dev->features &= ~NETIF_F_UFO;
}
if (!(dev->features & NETIF_F_SG)) {

34
target/linux/atheros/patches-2.6.27/200-ar2313_enable_mvswitch.patch Normal file
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@ -0,0 +1,34 @@
--- a/drivers/net/ar2313/ar2313.c
+++ b/drivers/net/ar2313/ar2313.c
@@ -953,9 +953,9 @@
((status >> DMA_RX_LEN_SHIFT) & 0x3fff) - CRC_LEN);
dev->stats.rx_bytes += skb->len;
- skb->protocol = eth_type_trans(skb, dev);
+
/* pass the packet to upper layers */
- netif_rx(skb);
+ sp->rx(skb);
skb_new->dev = dev;
/* 16 bit align */
@@ -1370,6 +1370,8 @@
return PTR_ERR(phydev);
}
+ sp->rx = phydev->netif_rx;
+
/* mask with MAC supported features */
phydev->supported &= (SUPPORTED_10baseT_Half
| SUPPORTED_10baseT_Full
--- a/drivers/net/ar2313/ar2313.h
+++ b/drivers/net/ar2313/ar2313.h
@@ -107,6 +107,8 @@
*/
struct ar2313_private {
struct net_device *dev;
+ int (*rx)(struct sk_buff *skb);
+
int version;
u32 mb[2];

43
target/linux/atheros/patches-2.6.27/901-get_c0_compare_irq_function.patch Normal file
View file

@ -0,0 +1,43 @@
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -45,6 +45,7 @@
#include <asm/mmu_context.h>
#include <asm/types.h>
#include <asm/stacktrace.h>
+#include <asm/time.h>
extern void check_wait(void);
extern asmlinkage void r4k_wait(void);
@@ -1484,6 +1485,8 @@
*/
if (cpu_has_mips_r2) {
cp0_compare_irq = (read_c0_intctl() >> 29) & 7;
+ if (get_c0_compare_irq)
+ cp0_compare_irq = get_c0_compare_irq();
cp0_perfcount_irq = (read_c0_intctl() >> 26) & 7;
if (cp0_perfcount_irq == cp0_compare_irq)
cp0_perfcount_irq = -1;
--- a/include/asm-mips/time.h
+++ b/include/asm-mips/time.h
@@ -53,6 +53,7 @@
#ifdef CONFIG_CEVT_R4K
extern int mips_clockevent_init(void);
extern unsigned int __weak get_c0_compare_int(void);
+extern unsigned int __weak get_c0_compare_irq(void);
#else
static inline int mips_clockevent_init(void)
{
--- a/arch/mips/atheros/board.c
+++ b/arch/mips/atheros/board.c
@@ -205,6 +205,11 @@
void __init plat_time_init(void) {
board_time_init();
}
+
+unsigned int __cpuinit get_c0_compare_irq(void)
+{
+ return CP0_LEGACY_COMPARE_IRQ;
+}
#endif
void __init arch_init_irq(void)

56
target/linux/atheros/patches-2.6.27/902-mips_clocksource_init_war.patch Normal file
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@ -0,0 +1,56 @@
--- a/arch/mips/kernel/cevt-r4k.c
+++ b/arch/mips/kernel/cevt-r4k.c
@@ -15,6 +15,22 @@
#include <asm/cevt-r4k.h>
/*
+ * Compare interrupt can be routed and latched outside the core,
+ * so a single execution hazard barrier may not be enough to give
+ * it time to clear as seen in the Cause register. 4 time the
+ * pipeline depth seems reasonably conservative, and empirically
+ * works better in configurations with high CPU/bus clock ratios.
+ */
+
+#define compare_change_hazard() \
+ do { \
+ irq_disable_hazard(); \
+ irq_disable_hazard(); \
+ irq_disable_hazard(); \
+ irq_disable_hazard(); \
+ } while (0)
+
+/*
* The SMTC Kernel for the 34K, 1004K, et. al. replaces several
* of these routines with SMTC-specific variants.
*/
@@ -30,6 +46,7 @@
cnt = read_c0_count();
cnt += delta;
write_c0_compare(cnt);
+ compare_change_hazard();
res = ((int)(read_c0_count() - cnt) > 0) ? -ETIME : 0;
return res;
}
@@ -99,22 +116,6 @@
return (read_c0_cause() >> cp0_compare_irq) & 0x100;
}
-/*
- * Compare interrupt can be routed and latched outside the core,
- * so a single execution hazard barrier may not be enough to give
- * it time to clear as seen in the Cause register. 4 time the
- * pipeline depth seems reasonably conservative, and empirically
- * works better in configurations with high CPU/bus clock ratios.
- */
-
-#define compare_change_hazard() \
- do { \
- irq_disable_hazard(); \
- irq_disable_hazard(); \
- irq_disable_hazard(); \
- irq_disable_hazard(); \
- } while (0)
-
int c0_compare_int_usable(void)
{
unsigned int delta;