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atheros: add v3.18 support

Browse source 
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>

SVN-Revision: 44705
This commit is contained in:
Felix Fietkau 2015-03-13 02:57:41 +00:00
parent dfd09fc769
commit d3354d1aac
14 changed files with 6590 additions and 0 deletions
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136
target/linux/atheros/config-3.18 Normal file
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@ -0,0 +1,136 @@
CONFIG_ADM6996_PHY=y
CONFIG_AR2315_WDT=y
CONFIG_AR8216_PHY=y
CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE=y
CONFIG_ARCH_DISCARD_MEMBLOCK=y
CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
# CONFIG_ARCH_HAS_SG_CHAIN is not set
CONFIG_ARCH_HAVE_CUSTOM_GPIO_H=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
CONFIG_ARCH_REQUIRE_GPIOLIB=y
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
CONFIG_ATHEROS_AR231X=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_CEVT_R4K=y
CONFIG_CLONE_BACKWARDS=y
CONFIG_CMDLINE="console=ttyS0,9600 rootfstype=squashfs,jffs2"
CONFIG_CMDLINE_BOOL=y
# CONFIG_CMDLINE_OVERRIDE is not set
CONFIG_CPU_BIG_ENDIAN=y
CONFIG_CPU_GENERIC_DUMP_TLB=y
CONFIG_CPU_HAS_PREFETCH=y
CONFIG_CPU_HAS_SYNC=y
CONFIG_CPU_MIPS32=y
CONFIG_CPU_MIPS32_R1=y
CONFIG_CPU_MIPSR1=y
CONFIG_CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS=y
CONFIG_CPU_R4K_CACHE_TLB=y
CONFIG_CPU_R4K_FPU=y
CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y
CONFIG_CPU_SUPPORTS_HIGHMEM=y
CONFIG_CSRC_R4K=y
CONFIG_DMA_NONCOHERENT=y
CONFIG_EARLY_PRINTK=y
CONFIG_ETHERNET_PACKET_MANGLE=y
CONFIG_GENERIC_ATOMIC64=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_GENERIC_IO=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_GPIOLIB=y
CONFIG_GPIO_AR2315=y
CONFIG_GPIO_AR5312=y
CONFIG_GPIO_DEVRES=y
CONFIG_GPIO_SYSFS=y
CONFIG_HARDWARE_WATCHPOINTS=y
CONFIG_HAS_DMA=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_HAVE_ARCH_KGDB=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
CONFIG_HAVE_BPF_JIT=y
CONFIG_HAVE_CC_STACKPROTECTOR=y
CONFIG_HAVE_CONTEXT_TRACKING=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_HAVE_DEBUG_KMEMLEAK=y
CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
CONFIG_HAVE_DMA_API_DEBUG=y
CONFIG_HAVE_DMA_ATTRS=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_GENERIC_DMA_COHERENT=y
CONFIG_HAVE_IDE=y
CONFIG_HAVE_MEMBLOCK=y
CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_HAVE_NET_DSA=y
CONFIG_HAVE_OPROFILE=y
CONFIG_HAVE_PERF_EVENTS=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HW_HAS_PCI=y
CONFIG_HW_RANDOM=y
CONFIG_HZ_PERIODIC=y
CONFIG_IMAGE_CMDLINE_HACK=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_IP17XX_PHY=y
CONFIG_IRQ_CPU=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_IRQ_WORK=y
CONFIG_LEDS_GPIO=y
CONFIG_MDIO_BOARDINFO=y
CONFIG_MIPS=y
# CONFIG_MIPS_HUGE_TLB_SUPPORT is not set
CONFIG_MIPS_L1_CACHE_SHIFT=5
# CONFIG_MIPS_MACHINE is not set
CONFIG_MODULES_USE_ELF_REL=y
CONFIG_MTD_AR2315=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
# CONFIG_MTD_CFI_GEOMETRY is not set
# CONFIG_MTD_CFI_INTELEXT is not set
CONFIG_MTD_MYLOADER_PARTS=y
CONFIG_MTD_PHYSMAP=y
CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-3
CONFIG_MTD_REDBOOT_PARTS=y
CONFIG_MVSWITCH_PHY=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_PER_CPU_KM=y
CONFIG_NET_AR231X=y
CONFIG_NO_GENERIC_PCI_IOPORT_MAP=y
# CONFIG_NO_IOPORT_MAP is not set
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_PCI=y
CONFIG_PCI_AR2315=y
CONFIG_PCI_DISABLE_COMMON_QUIRKS=y
CONFIG_PCI_DOMAINS=y
CONFIG_PERF_USE_VMALLOC=y
CONFIG_PHYLIB=y
# CONFIG_PREEMPT_RCU is not set
# CONFIG_RCU_STALL_COMMON is not set
# CONFIG_SCSI_DMA is not set
CONFIG_SERIAL_8250_NR_UARTS=1
CONFIG_SERIAL_8250_RUNTIME_UARTS=1
CONFIG_SOC_AR2315=y
CONFIG_SOC_AR5312=y
# CONFIG_SWAP is not set
CONFIG_SWCONFIG=y
CONFIG_SYS_HAS_CPU_MIPS32_R1=y
CONFIG_SYS_HAS_EARLY_PRINTK=y
CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y
CONFIG_SYS_SUPPORTS_ARBIT_HZ=y
CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y
CONFIG_TICK_CPU_ACCOUNTING=y
CONFIG_USB_SUPPORT=y
CONFIG_ZONE_DMA_FLAG=0

2768
target/linux/atheros/patches-3.18/100-board.patch Normal file
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70
target/linux/atheros/patches-3.18/101-early-printk-support.patch Normal file
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@ -0,0 +1,70 @@
--- /dev/null
+++ b/arch/mips/ar231x/early_printk.c
@@ -0,0 +1,46 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2010 Gabor Juhos <juhosg@openwrt.org>
+ */
+
+#include <linux/mm.h>
+#include <linux/io.h>
+#include <linux/serial_reg.h>
+#include <asm/addrspace.h>
+
+#include <asm/mach-ar231x/ar2315_regs.h>
+#include <asm/mach-ar231x/ar5312_regs.h>
+#include "devices.h"
+
+static inline void prom_uart_wr(void __iomem *base, unsigned reg,
+ unsigned char ch)
+{
+ __raw_writel(ch, base + 4 * reg);
+}
+
+static inline unsigned char prom_uart_rr(void __iomem *base, unsigned reg)
+{
+ return __raw_readl(base + 4 * reg);
+}
+
+void prom_putchar(unsigned char ch)
+{
+ static void __iomem *base;
+
+ if (unlikely(base == NULL)) {
+ if (is_2315())
+ base = (void __iomem *)(KSEG1ADDR(AR2315_UART0));
+ else
+ base = (void __iomem *)(KSEG1ADDR(AR5312_UART0));
+ }
+
+ while ((prom_uart_rr(base, UART_LSR) & UART_LSR_THRE) == 0)
+ ;
+ prom_uart_wr(base, UART_TX, ch);
+ while ((prom_uart_rr(base, UART_LSR) & UART_LSR_THRE) == 0)
+ ;
+}
+
--- a/arch/mips/ar231x/Makefile
+++ b/arch/mips/ar231x/Makefile
@@ -9,5 +9,8 @@
#
obj-y += board.o prom.o devices.o
+
+obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
+
obj-$(CONFIG_SOC_AR5312) += ar5312.o
obj-$(CONFIG_SOC_AR2315) += ar2315.o
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -164,6 +164,7 @@ config ATHEROS_AR231X
select SYS_SUPPORTS_BIG_ENDIAN
select SYS_SUPPORTS_32BIT_KERNEL
select ARCH_REQUIRE_GPIOLIB
+ select SYS_HAS_EARLY_PRINTK
help
Support for AR231x and AR531x based boards

194
target/linux/atheros/patches-3.18/102-ar5312_gpio.patch Normal file
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@ -0,0 +1,194 @@
--- a/arch/mips/ar231x/Kconfig
+++ b/arch/mips/ar231x/Kconfig
@@ -1,6 +1,7 @@
config SOC_AR5312
bool "Atheros 5312/2312+ support"
depends on ATHEROS_AR231X
+ select GPIO_AR5312
default y
config SOC_AR2315
--- a/arch/mips/ar231x/ar5312.c
+++ b/arch/mips/ar231x/ar5312.c
@@ -192,6 +192,22 @@ static struct platform_device ar5312_phy
.num_resources = 1,
};
+static struct resource ar5312_gpio_res[] = {
+ {
+ .name = "ar5312-gpio",
+ .flags = IORESOURCE_MEM,
+ .start = AR5312_GPIO,
+ .end = AR5312_GPIO + 0x0c - 1,
+ },
+};
+
+static struct platform_device ar5312_gpio = {
+ .name = "ar5312-gpio",
+ .id = -1,
+ .resource = ar5312_gpio_res,
+ .num_resources = ARRAY_SIZE(ar5312_gpio_res),
+};
+
#ifdef CONFIG_LEDS_GPIO
static struct gpio_led ar5312_leds[] = {
{ .name = "wlan", .gpio = 0, .active_low = 1, },
@@ -282,6 +298,8 @@ int __init ar5312_init_devices(void)
platform_device_register(&ar5312_physmap_flash);
+ platform_device_register(&ar5312_gpio);
+
#ifdef CONFIG_LEDS_GPIO
ar5312_leds[0].gpio = config->sys_led_gpio;
platform_device_register(&ar5312_gpio_leds);
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -112,6 +112,13 @@ config GPIO_MAX730X
comment "Memory mapped GPIO drivers:"
+config GPIO_AR5312
+ bool "AR5312 SoC GPIO support"
+ default y if SOC_AR5312
+ depends on SOC_AR5312
+ help
+ Say yes here to enable GPIO support for Atheros AR5312/AR2312+ SoCs.
+
config GPIO_CLPS711X
tristate "CLPS711X GPIO support"
depends on ARCH_CLPS711X || COMPILE_TEST
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -17,6 +17,7 @@ obj-$(CONFIG_GPIO_ADNP) += gpio-adnp.o
obj-$(CONFIG_GPIO_ADP5520) += gpio-adp5520.o
obj-$(CONFIG_GPIO_ADP5588) += gpio-adp5588.o
obj-$(CONFIG_GPIO_AMD8111) += gpio-amd8111.o
+obj-$(CONFIG_GPIO_AR5312) += gpio-ar5312.o
obj-$(CONFIG_GPIO_ARIZONA) += gpio-arizona.o
obj-$(CONFIG_GPIO_BCM_KONA) += gpio-bcm-kona.o
obj-$(CONFIG_GPIO_BT8XX) += gpio-bt8xx.o
--- /dev/null
+++ b/drivers/gpio/gpio-ar5312.c
@@ -0,0 +1,121 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
+ * Copyright (C) 2006 FON Technology, SL.
+ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
+ * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
+ * Copyright (C) 2012 Alexandros C. Couloumbis <alex@ozo.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+
+#define DRIVER_NAME "ar5312-gpio"
+
+#define AR5312_GPIO_DO 0x00 /* output register */
+#define AR5312_GPIO_DI 0x04 /* intput register */
+#define AR5312_GPIO_CR 0x08 /* control register */
+
+#define AR5312_GPIO_CR_M(x) (1 << (x)) /* mask for i/o */
+#define AR5312_GPIO_CR_O(x) (0 << (x)) /* mask for output */
+#define AR5312_GPIO_CR_I(x) (1 << (x)) /* mask for input */
+#define AR5312_GPIO_CR_INT(x) (1 << ((x)+8)) /* mask for interrupt */
+#define AR5312_GPIO_CR_UART(x) (1 << ((x)+16)) /* uart multiplex */
+
+#define AR5312_GPIO_NUM 8
+
+static void __iomem *ar5312_mem;
+
+static inline u32 ar5312_gpio_reg_read(unsigned reg)
+{
+ return __raw_readl(ar5312_mem + reg);
+}
+
+static inline void ar5312_gpio_reg_write(unsigned reg, u32 val)
+{
+ __raw_writel(val, ar5312_mem + reg);
+}
+
+static inline void ar5312_gpio_reg_mask(unsigned reg, u32 mask, u32 val)
+{
+ ar5312_gpio_reg_write(reg, (ar5312_gpio_reg_read(reg) & ~mask) | val);
+}
+
+static int ar5312_gpio_get_val(struct gpio_chip *chip, unsigned gpio)
+{
+ return (ar5312_gpio_reg_read(AR5312_GPIO_DI) >> gpio) & 1;
+}
+
+static void ar5312_gpio_set_val(struct gpio_chip *chip, unsigned gpio, int val)
+{
+ u32 reg = ar5312_gpio_reg_read(AR5312_GPIO_DO);
+
+ reg = val ? reg | (1 << gpio) : reg & ~(1 << gpio);
+ ar5312_gpio_reg_write(AR5312_GPIO_DO, reg);
+}
+
+static int ar5312_gpio_dir_in(struct gpio_chip *chip, unsigned gpio)
+{
+ ar5312_gpio_reg_mask(AR5312_GPIO_CR, 0, 1 << gpio);
+ return 0;
+}
+
+static int ar5312_gpio_dir_out(struct gpio_chip *chip, unsigned gpio, int val)
+{
+ ar5312_gpio_reg_mask(AR5312_GPIO_CR, 1 << gpio, 0);
+ ar5312_gpio_set_val(chip, gpio, val);
+ return 0;
+}
+
+static struct gpio_chip ar5312_gpio_chip = {
+ .label = DRIVER_NAME,
+ .direction_input = ar5312_gpio_dir_in,
+ .direction_output = ar5312_gpio_dir_out,
+ .set = ar5312_gpio_set_val,
+ .get = ar5312_gpio_get_val,
+ .base = 0,
+ .ngpio = AR5312_GPIO_NUM,
+};
+
+static int ar5312_gpio_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct resource *res;
+ int ret;
+
+ if (ar5312_mem)
+ return -EBUSY;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ ar5312_mem = devm_ioremap_resource(dev, res);
+ if (IS_ERR(ar5312_mem))
+ return PTR_ERR(ar5312_mem);
+
+ ar5312_gpio_chip.dev = dev;
+ ret = gpiochip_add(&ar5312_gpio_chip);
+ if (ret) {
+ dev_err(dev, "failed to add gpiochip\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static struct platform_driver ar5312_gpio_driver = {
+ .probe = ar5312_gpio_probe,
+ .driver = {
+ .name = DRIVER_NAME,
+ .owner = THIS_MODULE,
+ }
+};
+
+static int __init ar5312_gpio_init(void)
+{
+ return platform_driver_register(&ar5312_gpio_driver);
+}
+subsys_initcall(ar5312_gpio_init);

315
target/linux/atheros/patches-3.18/103-ar2315_gpio.patch Normal file
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@ -0,0 +1,315 @@
--- a/arch/mips/ar231x/Kconfig
+++ b/arch/mips/ar231x/Kconfig
@@ -7,4 +7,5 @@ config SOC_AR5312
config SOC_AR2315
bool "Atheros 2315+ support"
depends on ATHEROS_AR231X
+ select GPIO_AR2315
default y
--- a/arch/mips/ar231x/ar2315.c
+++ b/arch/mips/ar231x/ar2315.c
@@ -212,6 +212,34 @@ static struct platform_device ar2315_wdt
.num_resources = ARRAY_SIZE(ar2315_wdt_res)
};
+static struct resource ar2315_gpio_res[] = {
+ {
+ .name = "ar2315-gpio",
+ .flags = IORESOURCE_MEM,
+ .start = AR2315_GPIO,
+ .end = AR2315_GPIO + 0x10 - 1,
+ },
+ {
+ .name = "ar2315-gpio",
+ .flags = IORESOURCE_IRQ,
+ .start = AR2315_MISC_IRQ_GPIO,
+ .end = AR2315_MISC_IRQ_GPIO,
+ },
+ {
+ .name = "ar2315-gpio-irq-base",
+ .flags = IORESOURCE_IRQ,
+ .start = AR231X_GPIO_IRQ_BASE,
+ .end = AR231X_GPIO_IRQ_BASE,
+ }
+};
+
+static struct platform_device ar2315_gpio = {
+ .id = -1,
+ .name = "ar2315-gpio",
+ .resource = ar2315_gpio_res,
+ .num_resources = ARRAY_SIZE(ar2315_gpio_res)
+};
+
/*
* NB: We use mapping size that is larger than the actual flash size,
* but this shouldn't be a problem here, because the flash will simply
@@ -277,6 +305,7 @@ ar2315_init_devices(void)
ar231x_find_config(ar2315_flash_limit());
ar2315_eth_data.macaddr = ar231x_board.config->enet0_mac;
+ platform_device_register(&ar2315_gpio);
ar2315_init_gpio_leds();
platform_device_register(&ar2315_wdt);
platform_device_register(&ar2315_spiflash);
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -112,6 +112,13 @@ config GPIO_MAX730X
comment "Memory mapped GPIO drivers:"
+config GPIO_AR2315
+ bool "AR2315 SoC GPIO support"
+ default y if SOC_AR2315
+ depends on SOC_AR2315
+ help
+ Say yes here to enable GPIO support for Atheros AR2315+ SoCs.
+
config GPIO_AR5312
bool "AR5312 SoC GPIO support"
default y if SOC_AR5312
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -17,6 +17,7 @@ obj-$(CONFIG_GPIO_ADNP) += gpio-adnp.o
obj-$(CONFIG_GPIO_ADP5520) += gpio-adp5520.o
obj-$(CONFIG_GPIO_ADP5588) += gpio-adp5588.o
obj-$(CONFIG_GPIO_AMD8111) += gpio-amd8111.o
+obj-$(CONFIG_GPIO_AR2315) += gpio-ar2315.o
obj-$(CONFIG_GPIO_AR5312) += gpio-ar5312.o
obj-$(CONFIG_GPIO_ARIZONA) += gpio-arizona.o
obj-$(CONFIG_GPIO_BCM_KONA) += gpio-bcm-kona.o
--- /dev/null
+++ b/drivers/gpio/gpio-ar2315.c
@@ -0,0 +1,233 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003 Atheros Communications, Inc., All Rights Reserved.
+ * Copyright (C) 2006 FON Technology, SL.
+ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
+ * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+ * Copyright (C) 2012 Alexandros C. Couloumbis <alex@ozo.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/irq.h>
+
+#define DRIVER_NAME "ar2315-gpio"
+
+#define AR2315_GPIO_DI 0x0000
+#define AR2315_GPIO_DO 0x0008
+#define AR2315_GPIO_DIR 0x0010
+#define AR2315_GPIO_INT 0x0018
+
+#define AR2315_GPIO_DIR_M(x) (1 << (x)) /* mask for i/o */
+#define AR2315_GPIO_DIR_O(x) (1 << (x)) /* output */
+#define AR2315_GPIO_DIR_I(x) (0) /* input */
+
+#define AR2315_GPIO_INT_NUM_M 0x3F /* mask for GPIO num */
+#define AR2315_GPIO_INT_TRIG(x) ((x) << 6) /* interrupt trigger */
+#define AR2315_GPIO_INT_TRIG_M (0x3 << 6) /* mask for int trig */
+
+#define AR2315_GPIO_INT_TRIG_OFF 0 /* Triggerring off */
+#define AR2315_GPIO_INT_TRIG_LOW 1 /* Low Level Triggered */
+#define AR2315_GPIO_INT_TRIG_HIGH 2 /* High Level Triggered */
+#define AR2315_GPIO_INT_TRIG_EDGE 3 /* Edge Triggered */
+
+#define AR2315_GPIO_NUM 22
+
+static u32 ar2315_gpio_intmask;
+static u32 ar2315_gpio_intval;
+static unsigned ar2315_gpio_irq_base;
+static void __iomem *ar2315_mem;
+
+static inline u32 ar2315_gpio_reg_read(unsigned reg)
+{
+ return __raw_readl(ar2315_mem + reg);
+}
+
+static inline void ar2315_gpio_reg_write(unsigned reg, u32 val)
+{
+ __raw_writel(val, ar2315_mem + reg);
+}
+
+static inline void ar2315_gpio_reg_mask(unsigned reg, u32 mask, u32 val)
+{
+ ar2315_gpio_reg_write(reg, (ar2315_gpio_reg_read(reg) & ~mask) | val);
+}
+
+static void ar2315_gpio_irq_handler(unsigned irq, struct irq_desc *desc)
+{
+ u32 pend;
+ int bit = -1;
+
+ /* only do one gpio interrupt at a time */
+ pend = ar2315_gpio_reg_read(AR2315_GPIO_DI);
+ pend ^= ar2315_gpio_intval;
+ pend &= ar2315_gpio_intmask;
+
+ if (pend) {
+ bit = fls(pend) - 1;
+ pend &= ~(1 << bit);
+ ar2315_gpio_intval ^= (1 << bit);
+ }
+
+ /* Enable interrupt with edge detection */
+ if ((ar2315_gpio_reg_read(AR2315_GPIO_DIR) & AR2315_GPIO_DIR_M(bit)) !=
+ AR2315_GPIO_DIR_I(bit))
+ return;
+
+ if (bit >= 0)
+ generic_handle_irq(ar2315_gpio_irq_base + bit);
+}
+
+static void ar2315_gpio_int_setup(unsigned gpio, int trig)
+{
+ u32 reg = ar2315_gpio_reg_read(AR2315_GPIO_INT);
+
+ reg &= ~(AR2315_GPIO_INT_NUM_M | AR2315_GPIO_INT_TRIG_M);
+ reg |= gpio | AR2315_GPIO_INT_TRIG(trig);
+ ar2315_gpio_reg_write(AR2315_GPIO_INT, reg);
+}
+
+static void ar2315_gpio_irq_unmask(struct irq_data *d)
+{
+ unsigned gpio = d->irq - ar2315_gpio_irq_base;
+ u32 dir = ar2315_gpio_reg_read(AR2315_GPIO_DIR);
+
+ /* Enable interrupt with edge detection */
+ if ((dir & AR2315_GPIO_DIR_M(gpio)) != AR2315_GPIO_DIR_I(gpio))
+ return;
+
+ ar2315_gpio_intmask |= (1 << gpio);
+ ar2315_gpio_int_setup(gpio, AR2315_GPIO_INT_TRIG_EDGE);
+}
+
+static void ar2315_gpio_irq_mask(struct irq_data *d)
+{
+ unsigned gpio = d->irq - ar2315_gpio_irq_base;
+
+ /* Disable interrupt */
+ ar2315_gpio_intmask &= ~(1 << gpio);
+ ar2315_gpio_int_setup(gpio, AR2315_GPIO_INT_TRIG_OFF);
+}
+
+static struct irq_chip ar2315_gpio_irq_chip = {
+ .name = DRIVER_NAME,
+ .irq_unmask = ar2315_gpio_irq_unmask,
+ .irq_mask = ar2315_gpio_irq_mask,
+};
+
+static void ar2315_gpio_irq_init(unsigned irq)
+{
+ unsigned i;
+
+ ar2315_gpio_intval = ar2315_gpio_reg_read(AR2315_GPIO_DI);
+ for (i = 0; i < AR2315_GPIO_NUM; i++) {
+ unsigned _irq = ar2315_gpio_irq_base + i;
+
+ irq_set_chip_and_handler(_irq, &ar2315_gpio_irq_chip,
+ handle_level_irq);
+ }
+ irq_set_chained_handler(irq, ar2315_gpio_irq_handler);
+}
+
+static int ar2315_gpio_get_val(struct gpio_chip *chip, unsigned gpio)
+{
+ return (ar2315_gpio_reg_read(AR2315_GPIO_DI) >> gpio) & 1;
+}
+
+static void ar2315_gpio_set_val(struct gpio_chip *chip, unsigned gpio, int val)
+{
+ u32 reg = ar2315_gpio_reg_read(AR2315_GPIO_DO);
+
+ reg = val ? reg | (1 << gpio) : reg & ~(1 << gpio);
+ ar2315_gpio_reg_write(AR2315_GPIO_DO, reg);
+}
+
+static int ar2315_gpio_dir_in(struct gpio_chip *chip, unsigned gpio)
+{
+ ar2315_gpio_reg_mask(AR2315_GPIO_DIR, 1 << gpio, 0);
+ return 0;
+}
+
+static int ar2315_gpio_dir_out(struct gpio_chip *chip, unsigned gpio, int val)
+{
+ ar2315_gpio_reg_mask(AR2315_GPIO_DIR, 0, 1 << gpio);
+ ar2315_gpio_set_val(chip, gpio, val);
+ return 0;
+}
+
+static int ar2315_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
+{
+ return ar2315_gpio_irq_base + gpio;
+}
+
+static struct gpio_chip ar2315_gpio_chip = {
+ .label = DRIVER_NAME,
+ .direction_input = ar2315_gpio_dir_in,
+ .direction_output = ar2315_gpio_dir_out,
+ .set = ar2315_gpio_set_val,
+ .get = ar2315_gpio_get_val,
+ .to_irq = ar2315_gpio_to_irq,
+ .base = 0,
+ .ngpio = AR2315_GPIO_NUM,
+};
+
+static int ar2315_gpio_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct resource *res;
+ unsigned irq;
+ int ret;
+
+ if (ar2315_mem)
+ return -EBUSY;
+
+ res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
+ "ar2315-gpio-irq-base");
+ if (!res) {
+ dev_err(dev, "not found GPIO IRQ base\n");
+ return -ENXIO;
+ }
+ ar2315_gpio_irq_base = res->start;
+
+ res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, DRIVER_NAME);
+ if (!res) {
+ dev_err(dev, "not found IRQ number\n");
+ return -ENXIO;
+ }
+ irq = res->start;
+
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, DRIVER_NAME);
+ ar2315_mem = devm_ioremap_resource(dev, res);
+ if (IS_ERR(ar2315_mem))
+ return PTR_ERR(ar2315_mem);
+
+ ar2315_gpio_chip.dev = dev;
+ ret = gpiochip_add(&ar2315_gpio_chip);
+ if (ret) {
+ dev_err(dev, "failed to add gpiochip\n");
+ return ret;
+ }
+
+ ar2315_gpio_irq_init(irq);
+
+ return 0;
+}
+
+static struct platform_driver ar2315_gpio_driver = {
+ .probe = ar2315_gpio_probe,
+ .driver = {
+ .name = DRIVER_NAME,
+ .owner = THIS_MODULE,
+ }
+};
+
+static int __init ar2315_gpio_init(void)
+{
+ return platform_driver_register(&ar2315_gpio_driver);
+}
+subsys_initcall(ar2315_gpio_init);

403
target/linux/atheros/patches-3.18/105-ar2315_pci.patch Normal file
View file

@ -0,0 +1,403 @@
--- a/arch/mips/pci/Makefile
+++ b/arch/mips/pci/Makefile
@@ -19,6 +19,7 @@ obj-$(CONFIG_BCM47XX) += pci-bcm47xx.o
obj-$(CONFIG_BCM63XX) += pci-bcm63xx.o fixup-bcm63xx.o \
ops-bcm63xx.o
obj-$(CONFIG_MIPS_ALCHEMY) += pci-alchemy.o
+obj-$(CONFIG_PCI_AR2315) += pci-ar2315.o
obj-$(CONFIG_SOC_AR71XX) += pci-ar71xx.o
obj-$(CONFIG_PCI_AR724X) += pci-ar724x.o
obj-$(CONFIG_MIPS_PCI_VIRTIO) += pci-virtio-guest.o
--- /dev/null
+++ b/arch/mips/pci/pci-ar2315.c
@@ -0,0 +1,345 @@
+/*
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+/**
+ * Both AR2315 and AR2316 chips have PCI interface unit, which supports DMA
+ * and interrupt. PCI interface supports MMIO access method, but does not
+ * seem to support I/O ports.
+ *
+ * Read/write operation in the region 0x80000000-0xBFFFFFFF causes
+ * a memory read/write command on the PCI bus. 30 LSBs of address on
+ * the bus are taken from memory read/write request and 2 MSBs are
+ * determined by PCI unit configuration.
+ *
+ * To work with the configuration space instead of memory is necessary set
+ * the CFG_SEL bit in the PCI_MISC_CONFIG register.
+ *
+ * Devices on the bus can perform DMA requests via chip BAR1. PCI host
+ * controller BARs are programmend as if an external device is programmed.
+ * Which means that during configuration, IDSEL pin of the chip should be
+ * asserted.
+ *
+ * We know (and support) only one board that uses the PCI interface -
+ * Fonera 2.0g (FON2202). It has a USB EHCI controller connected to the
+ * AR2315 PCI bus. IDSEL pin of USB controller is connected to AD[13] line
+ * and IDSEL pin of AR125 is connected to AD[16] line.
+ */
+
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/delay.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+#include <asm/paccess.h>
+#include <ar231x_platform.h>
+#include <ar231x.h>
+#include <ar2315_regs.h>
+
+/* Arbitrary size of memory region to access the configuration space */
+#define AR2315_PCI_CFG_SIZE 0x00100000
+
+#define AR2315_PCI_HOST_SLOT 3
+#define AR2315_PCI_HOST_DEVID ((0xff18 << 16) | PCI_VENDOR_ID_ATHEROS)
+
+static void __iomem *ar2315_pci_cfg_mem;
+
+static int ar2315_pci_cfg_access(int devfn, int where, int size, u32 *ptr,
+ bool write)
+{
+ int func = PCI_FUNC(devfn);
+ int dev = PCI_SLOT(devfn);
+ u32 addr = (1 << (13 + dev)) | (func << 8) | (where & ~3);
+ u32 mask = 0xffffffff >> 8 * (4 - size);
+ u32 sh = (where & 3) * 8;
+ u32 value, isr;
+
+ /* Prevent access past the remapped area */
+ if (addr >= AR2315_PCI_CFG_SIZE || dev > 18)
+ return PCIBIOS_DEVICE_NOT_FOUND;
+
+ /* Clear pending errors */
+ ar231x_write_reg(AR2315_PCI_ISR, AR2315_PCI_INT_ABORT);
+ /* Select Configuration access */
+ ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, 0, AR2315_PCIMISC_CFG_SEL);
+
+ mb(); /* PCI must see space change before we begin */
+
+ value = __raw_readl(ar2315_pci_cfg_mem + addr);
+
+ isr = ar231x_read_reg(AR2315_PCI_ISR);
+ if (isr & AR2315_PCI_INT_ABORT)
+ goto exit_err;
+
+ if (write) {
+ value = (value & ~(mask << sh)) | *ptr << sh;
+ __raw_writel(value, ar2315_pci_cfg_mem + addr);
+ isr = ar231x_read_reg(AR2315_PCI_ISR);
+ if (isr & AR2315_PCI_INT_ABORT)
+ goto exit_err;
+ } else {
+ *ptr = (value >> sh) & mask;
+ }
+
+ goto exit;
+
+exit_err:
+ ar231x_write_reg(AR2315_PCI_ISR, AR2315_PCI_INT_ABORT);
+ if (!write)
+ *ptr = 0xffffffff;
+
+exit:
+ /* Select Memory access */
+ ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, AR2315_PCIMISC_CFG_SEL, 0);
+
+ return isr & AR2315_PCI_INT_ABORT ? PCIBIOS_DEVICE_NOT_FOUND :
+ PCIBIOS_SUCCESSFUL;
+}
+
+static inline int ar2315_pci_local_cfg_rd(unsigned devfn, int where, u32 *val)
+{
+ return ar2315_pci_cfg_access(devfn, where, sizeof(u32), val, false);
+}
+
+static inline int ar2315_pci_local_cfg_wr(unsigned devfn, int where, u32 val)
+{
+ return ar2315_pci_cfg_access(devfn, where, sizeof(u32), &val, true);
+}
+
+static int ar2315_pci_cfg_read(struct pci_bus *bus, unsigned int devfn,
+ int where, int size, u32 *value)
+{
+ if (PCI_SLOT(devfn) == AR2315_PCI_HOST_SLOT)
+ return PCIBIOS_DEVICE_NOT_FOUND;
+
+ return ar2315_pci_cfg_access(devfn, where, size, value, 0);
+}
+
+static int ar2315_pci_cfg_write(struct pci_bus *bus, unsigned int devfn,
+ int where, int size, u32 value)
+{
+ if (PCI_SLOT(devfn) == AR2315_PCI_HOST_SLOT)
+ return PCIBIOS_DEVICE_NOT_FOUND;
+
+ return ar2315_pci_cfg_access(devfn, where, size, &value, 1);
+}
+
+static struct pci_ops ar2315_pci_ops = {
+ .read = ar2315_pci_cfg_read,
+ .write = ar2315_pci_cfg_write,
+};
+
+static struct resource ar2315_mem_resource = {
+ .name = "ar2315-pci-mem",
+ .start = AR2315_PCIEXT,
+ .end = AR2315_PCIEXT + AR2315_PCIEXT_SZ - 1,
+ .flags = IORESOURCE_MEM,
+};
+
+/* PCI controller does not support I/O ports */
+static struct resource ar2315_io_resource = {
+ .name = "ar2315-pci-io",
+ .start = 0,
+ .end = 0,
+ .flags = IORESOURCE_IO,
+};
+
+static struct pci_controller ar2315_pci_controller = {
+ .pci_ops = &ar2315_pci_ops,
+ .mem_resource = &ar2315_mem_resource,
+ .io_resource = &ar2315_io_resource,
+ .mem_offset = 0x00000000UL,
+ .io_offset = 0x00000000UL,
+};
+
+static int ar2315_pci_host_setup(void)
+{
+ unsigned devfn = PCI_DEVFN(AR2315_PCI_HOST_SLOT, 0);
+ int res;
+ u32 id;
+
+ res = ar2315_pci_local_cfg_rd(devfn, PCI_VENDOR_ID, &id);
+ if (res != PCIBIOS_SUCCESSFUL || id != AR2315_PCI_HOST_DEVID)
+ return -ENODEV;
+
+ /* Program MBARs */
+ ar2315_pci_local_cfg_wr(devfn, PCI_BASE_ADDRESS_0,
+ AR2315_PCI_HOST_MBAR0);
+ ar2315_pci_local_cfg_wr(devfn, PCI_BASE_ADDRESS_1,
+ AR2315_PCI_HOST_MBAR1);
+ ar2315_pci_local_cfg_wr(devfn, PCI_BASE_ADDRESS_2,
+ AR2315_PCI_HOST_MBAR2);
+
+ /* Run */
+ ar2315_pci_local_cfg_wr(devfn, PCI_COMMAND, PCI_COMMAND_MEMORY |
+ PCI_COMMAND_MASTER | PCI_COMMAND_SPECIAL |
+ PCI_COMMAND_INVALIDATE | PCI_COMMAND_PARITY |
+ PCI_COMMAND_SERR | PCI_COMMAND_FAST_BACK);
+
+ return 0;
+}
+
+static void ar2315_pci_irq_handler(unsigned irq, struct irq_desc *desc)
+{
+ u32 pending = ar231x_read_reg(AR2315_PCI_ISR) &
+ ar231x_read_reg(AR2315_PCI_IMR);
+
+ if (pending & AR2315_PCI_INT_EXT)
+ generic_handle_irq(AR2315_PCI_IRQ_EXT);
+ else if (pending & AR2315_PCI_INT_ABORT)
+ generic_handle_irq(AR2315_PCI_IRQ_ABORT);
+ else
+ spurious_interrupt();
+}
+
+static void ar2315_pci_irq_mask(struct irq_data *d)
+{
+ u32 m = 1 << (d->irq - AR2315_PCI_IRQ_BASE + AR2315_PCI_IRQ_SHIFT);
+
+ ar231x_mask_reg(AR2315_PCI_IMR, m, 0);
+}
+
+static void ar2315_pci_irq_mask_ack(struct irq_data *d)
+{
+ u32 m = 1 << (d->irq - AR2315_PCI_IRQ_BASE + AR2315_PCI_IRQ_SHIFT);
+
+ ar231x_mask_reg(AR2315_PCI_IMR, m, 0);
+ ar231x_write_reg(AR2315_PCI_ISR, m);
+}
+
+static void ar2315_pci_irq_unmask(struct irq_data *d)
+{
+ u32 m = 1 << (d->irq - AR2315_PCI_IRQ_BASE + AR2315_PCI_IRQ_SHIFT);
+
+ ar231x_mask_reg(AR2315_PCI_IMR, 0, m);
+}
+
+static struct irq_chip ar2315_pci_irq_chip = {
+ .name = "AR2315-PCI",
+ .irq_mask = ar2315_pci_irq_mask,
+ .irq_mask_ack = ar2315_pci_irq_mask_ack,
+ .irq_unmask = ar2315_pci_irq_unmask,
+};
+
+static void ar2315_pci_irq_init(void)
+{
+ int i;
+
+ ar231x_mask_reg(AR2315_PCI_IER, AR2315_PCI_IER_ENABLE, 0);
+ ar231x_mask_reg(AR2315_PCI_IMR, (AR2315_PCI_INT_ABORT |
+ AR2315_PCI_INT_EXT), 0);
+
+ for (i = 0; i < AR2315_PCI_IRQ_COUNT; ++i) {
+ int irq = AR2315_PCI_IRQ_BASE + i;
+
+ irq_set_chip_and_handler(irq, &ar2315_pci_irq_chip,
+ handle_level_irq);
+ }
+
+ irq_set_chained_handler(AR2315_IRQ_LCBUS_PCI, ar2315_pci_irq_handler);
+
+ /* Clear any pending Abort or external Interrupts
+ * and enable interrupt processing */
+ ar231x_write_reg(AR2315_PCI_ISR, (AR2315_PCI_INT_ABORT |
+ AR2315_PCI_INT_EXT));
+ ar231x_mask_reg(AR2315_PCI_IER, 0, AR2315_PCI_IER_ENABLE);
+}
+
+static int ar2315_pci_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ u32 reg;
+ int res;
+
+ /* Remap PCI config space */
+ ar2315_pci_cfg_mem = devm_ioremap_nocache(dev, AR2315_PCIEXT,
+ AR2315_PCI_CFG_SIZE);
+ if (!ar2315_pci_cfg_mem) {
+ dev_err(dev, "failed to remap PCI config space\n");
+ return -ENOMEM;
+ }
+
+ /* Reset PCI DMA logic */
+ reg = ar231x_mask_reg(AR2315_RESET, 0, AR2315_RESET_PCIDMA);
+ msleep(20);
+ reg &= ~AR2315_RESET_PCIDMA;
+ ar231x_write_reg(AR2315_RESET, reg);
+ msleep(20);
+
+ ar231x_mask_reg(AR2315_ENDIAN_CTL, 0,
+ AR2315_CONFIG_PCIAHB | AR2315_CONFIG_PCIAHB_BRIDGE);
+
+ ar231x_write_reg(AR2315_PCICLK, AR2315_PCICLK_PLLC_CLKM |
+ (AR2315_PCICLK_IN_FREQ_DIV_6 << AR2315_PCICLK_DIV_S));
+ ar231x_mask_reg(AR2315_AHB_ARB_CTL, 0, AR2315_ARB_PCI);
+ ar231x_mask_reg(AR2315_IF_CTL, AR2315_IF_PCI_CLK_MASK | AR2315_IF_MASK,
+ AR2315_IF_PCI | AR2315_IF_PCI_HOST |
+ AR2315_IF_PCI_INTR | (AR2315_IF_PCI_CLK_OUTPUT_CLK <<
+ AR2315_IF_PCI_CLK_SHIFT));
+
+ /* Reset the PCI bus by setting bits 5-4 in PCI_MCFG */
+ ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, AR2315_PCIMISC_RST_MODE,
+ AR2315_PCIRST_LOW);
+ msleep(100);
+
+ /* Bring the PCI out of reset */
+ ar231x_mask_reg(AR2315_PCI_MISC_CONFIG, AR2315_PCIMISC_RST_MODE,
+ AR2315_PCIRST_HIGH | AR2315_PCICACHE_DIS | 0x8);
+
+ ar231x_write_reg(AR2315_PCI_UNCACHE_CFG,
+ 0x1E | /* 1GB uncached */
+ (1 << 5) | /* Enable uncached */
+ (0x2 << 30) /* Base: 0x80000000 */);
+ ar231x_read_reg(AR2315_PCI_UNCACHE_CFG);
+
+ msleep(500);
+
+ res = ar2315_pci_host_setup();
+ if (res)
+ return res;
+
+ ar2315_pci_irq_init();
+
+ register_pci_controller(&ar2315_pci_controller);
+
+ return 0;
+}
+
+static struct platform_driver ar2315_pci_driver = {
+ .probe = ar2315_pci_probe,
+ .driver = {
+ .name = "ar2315-pci",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init ar2315_pci_init(void)
+{
+ return platform_driver_register(&ar2315_pci_driver);
+}
+arch_initcall(ar2315_pci_init);
+
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+ return AR2315_PCI_IRQ_EXT;
+}
+
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+ return 0;
+}
--- a/arch/mips/ar231x/Kconfig
+++ b/arch/mips/ar231x/Kconfig
@@ -9,3 +9,10 @@ config SOC_AR2315
depends on ATHEROS_AR231X
select GPIO_AR2315
default y
+
+config PCI_AR2315
+ bool "AR2315 PCI controller support"
+ depends on SOC_AR2315
+ select HW_HAS_PCI
+ select PCI
+ default y
--- a/arch/mips/ar231x/ar2315.c
+++ b/arch/mips/ar231x/ar2315.c
@@ -77,6 +77,10 @@ ar2315_irq_dispatch(void)
do_IRQ(AR2315_IRQ_WLAN0_INTRS);
else if (pending & CAUSEF_IP4)
do_IRQ(AR2315_IRQ_ENET0_INTRS);
+#ifdef CONFIG_PCI_AR2315
+ else if (pending & CAUSEF_IP5)
+ do_IRQ(AR2315_IRQ_LCBUS_PCI);
+#endif
else if (pending & CAUSEF_IP2)
do_IRQ(AR2315_IRQ_MISC_INTRS);
else if (pending & CAUSEF_IP7)
@@ -458,3 +462,18 @@ ar2315_plat_setup(void)
ar231x_serial_setup(AR2315_UART0, AR2315_MISC_IRQ_UART0,
ar2315_apb_frequency());
}
+
+#ifdef CONFIG_PCI_AR2315
+static int __init ar2315_pci_init(void)
+{
+ struct platform_device *pdev;
+
+ if (!is_2315() || ar231x_devtype != DEV_TYPE_AR2315)
+ return -ENODEV;
+
+ pdev = platform_device_register_simple("ar2315-pci", -1, NULL, 0);
+
+ return pdev ? 0 : -ENODEV;
+}
+arch_initcall(ar2315_pci_init);
+#endif

1533
target/linux/atheros/patches-3.18/110-ar2313_ethernet.patch Normal file
View file

File diff suppressed because it is too large Load diff

594
target/linux/atheros/patches-3.18/120-spiflash.patch Normal file
View file

@ -0,0 +1,594 @@
--- a/drivers/mtd/devices/Kconfig
+++ b/drivers/mtd/devices/Kconfig
@@ -120,6 +120,10 @@ config MTD_BCM47XXSFLASH
registered by bcma as platform devices. This enables driver for
serial flash memories (only read-only mode is implemented).
+config MTD_AR2315
+ tristate "Atheros AR2315+ SPI Flash support"
+ depends on SOC_AR2315
+
config MTD_SLRAM
tristate "Uncached system RAM"
help
--- a/drivers/mtd/devices/Makefile
+++ b/drivers/mtd/devices/Makefile
@@ -14,6 +14,7 @@ obj-$(CONFIG_MTD_DATAFLASH) += mtd_dataf
obj-$(CONFIG_MTD_M25P80) += m25p80.o
obj-$(CONFIG_MTD_SPEAR_SMI) += spear_smi.o
obj-$(CONFIG_MTD_SST25L) += sst25l.o
+obj-$(CONFIG_MTD_AR2315) += ar2315.o
obj-$(CONFIG_MTD_BCM47XXSFLASH) += bcm47xxsflash.o
obj-$(CONFIG_MTD_ST_SPI_FSM) += st_spi_fsm.o
--- /dev/null
+++ b/drivers/mtd/devices/ar2315.c
@@ -0,0 +1,459 @@
+
+/*
+ * MTD driver for the SPI Flash Memory support on Atheros AR2315
+ *
+ * Copyright (c) 2005-2006 Atheros Communications Inc.
+ * Copyright (C) 2006-2007 FON Technology, SL.
+ * Copyright (C) 2006-2007 Imre Kaloz <kaloz@openwrt.org>
+ * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
+ * Copyright (C) 2012 Alexandros C. Couloumbis <alex@ozo.com>
+ *
+ * This code is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/platform_device.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/mutex.h>
+
+#include "ar2315_spiflash.h"
+
+#define DRIVER_NAME "ar2315-spiflash"
+
+#define busy_wait(_priv, _condition, _wait) do { \
+ while (_condition) { \
+ if (_wait > 1) \
+ msleep(_wait); \
+ else if ((_wait == 1) && need_resched()) \
+ schedule(); \
+ else \
+ udelay(1); \
+ } \
+} while (0)
+
+enum {
+ FLASH_NONE,
+ FLASH_1MB,
+ FLASH_2MB,
+ FLASH_4MB,
+ FLASH_8MB,
+ FLASH_16MB,
+};
+
+/* Flash configuration table */
+struct flashconfig {
+ u32 byte_cnt;
+ u32 sector_cnt;
+ u32 sector_size;
+};
+
+static const struct flashconfig flashconfig_tbl[] = {
+ [FLASH_NONE] = { 0, 0, 0},
+ [FLASH_1MB] = { STM_1MB_BYTE_COUNT, STM_1MB_SECTOR_COUNT,
+ STM_1MB_SECTOR_SIZE},
+ [FLASH_2MB] = { STM_2MB_BYTE_COUNT, STM_2MB_SECTOR_COUNT,
+ STM_2MB_SECTOR_SIZE},
+ [FLASH_4MB] = { STM_4MB_BYTE_COUNT, STM_4MB_SECTOR_COUNT,
+ STM_4MB_SECTOR_SIZE},
+ [FLASH_8MB] = { STM_8MB_BYTE_COUNT, STM_8MB_SECTOR_COUNT,
+ STM_8MB_SECTOR_SIZE},
+ [FLASH_16MB] = { STM_16MB_BYTE_COUNT, STM_16MB_SECTOR_COUNT,
+ STM_16MB_SECTOR_SIZE}
+};
+
+/* Mapping of generic opcodes to STM serial flash opcodes */
+enum {
+ SPI_WRITE_ENABLE,
+ SPI_WRITE_DISABLE,
+ SPI_RD_STATUS,
+ SPI_WR_STATUS,
+ SPI_RD_DATA,
+ SPI_FAST_RD_DATA,
+ SPI_PAGE_PROGRAM,
+ SPI_SECTOR_ERASE,
+ SPI_BULK_ERASE,
+ SPI_DEEP_PWRDOWN,
+ SPI_RD_SIG,
+};
+
+struct opcodes {
+ __u16 code;
+ __s8 tx_cnt;
+ __s8 rx_cnt;
+};
+
+static const struct opcodes stm_opcodes[] = {
+ [SPI_WRITE_ENABLE] = {STM_OP_WR_ENABLE, 1, 0},
+ [SPI_WRITE_DISABLE] = {STM_OP_WR_DISABLE, 1, 0},
+ [SPI_RD_STATUS] = {STM_OP_RD_STATUS, 1, 1},
+ [SPI_WR_STATUS] = {STM_OP_WR_STATUS, 1, 0},
+ [SPI_RD_DATA] = {STM_OP_RD_DATA, 4, 4},
+ [SPI_FAST_RD_DATA] = {STM_OP_FAST_RD_DATA, 5, 0},
+ [SPI_PAGE_PROGRAM] = {STM_OP_PAGE_PGRM, 8, 0},
+ [SPI_SECTOR_ERASE] = {STM_OP_SECTOR_ERASE, 4, 0},
+ [SPI_BULK_ERASE] = {STM_OP_BULK_ERASE, 1, 0},
+ [SPI_DEEP_PWRDOWN] = {STM_OP_DEEP_PWRDOWN, 1, 0},
+ [SPI_RD_SIG] = {STM_OP_RD_SIG, 4, 1},
+};
+
+/* Driver private data structure */
+struct spiflash_priv {
+ struct mtd_info mtd;
+ void __iomem *readaddr; /* memory mapped data for read */
+ void __iomem *mmraddr; /* memory mapped register space */
+ struct mutex lock; /* serialize registers access */
+};
+
+#define to_spiflash(_mtd) container_of(_mtd, struct spiflash_priv, mtd)
+
+enum {
+ FL_READY,
+ FL_READING,
+ FL_ERASING,
+ FL_WRITING
+};
+
+/*****************************************************************************/
+
+static u32
+spiflash_read_reg(struct spiflash_priv *priv, int reg)
+{
+ return ioread32(priv->mmraddr + reg);
+}
+
+static void
+spiflash_write_reg(struct spiflash_priv *priv, int reg, u32 data)
+{
+ iowrite32(data, priv->mmraddr + reg);
+}
+
+static u32
+spiflash_wait_busy(struct spiflash_priv *priv)
+{
+ u32 reg;
+
+ busy_wait(priv, (reg = spiflash_read_reg(priv, SPI_FLASH_CTL)) &
+ SPI_CTL_BUSY, 0);
+ return reg;
+}
+
+static u32
+spiflash_sendcmd(struct spiflash_priv *priv, int opcode, u32 addr)
+{
+ const struct opcodes *op;
+ u32 reg, mask;
+
+ op = &stm_opcodes[opcode];
+ reg = spiflash_wait_busy(priv);
+ spiflash_write_reg(priv, SPI_FLASH_OPCODE,
+ ((u32)op->code) | (addr << 8));
+
+ reg &= ~SPI_CTL_TX_RX_CNT_MASK;
+ reg |= SPI_CTL_START | op->tx_cnt | (op->rx_cnt << 4);
+
+ spiflash_write_reg(priv, SPI_FLASH_CTL, reg);
+ spiflash_wait_busy(priv);
+
+ if (!op->rx_cnt)
+ return 0;
+
+ reg = spiflash_read_reg(priv, SPI_FLASH_DATA);
+
+ switch (op->rx_cnt) {
+ case 1:
+ mask = 0x000000ff;
+ break;
+ case 2:
+ mask = 0x0000ffff;
+ break;
+ case 3:
+ mask = 0x00ffffff;
+ break;
+ default:
+ mask = 0xffffffff;
+ break;
+ }
+ reg &= mask;
+
+ return reg;
+}
+
+/*
+ * Probe SPI flash device
+ * Function returns 0 for failure.
+ * and flashconfig_tbl array index for success.
+ */
+static int
+spiflash_probe_chip(struct platform_device *pdev, struct spiflash_priv *priv)
+{
+ u32 sig = spiflash_sendcmd(priv, SPI_RD_SIG, 0);
+ int flash_size;
+
+ switch (sig) {
+ case STM_8MBIT_SIGNATURE:
+ flash_size = FLASH_1MB;
+ break;
+ case STM_16MBIT_SIGNATURE:
+ flash_size = FLASH_2MB;
+ break;
+ case STM_32MBIT_SIGNATURE:
+ flash_size = FLASH_4MB;
+ break;
+ case STM_64MBIT_SIGNATURE:
+ flash_size = FLASH_8MB;
+ break;
+ case STM_128MBIT_SIGNATURE:
+ flash_size = FLASH_16MB;
+ break;
+ default:
+ dev_warn(&pdev->dev, "read of flash device signature failed!\n");
+ return 0;
+ }
+
+ return flash_size;
+}
+
+static void
+spiflash_wait_complete(struct spiflash_priv *priv, unsigned int timeout)
+{
+ busy_wait(priv, spiflash_sendcmd(priv, SPI_RD_STATUS, 0) &
+ SPI_STATUS_WIP, timeout);
+}
+
+static int
+spiflash_erase(struct mtd_info *mtd, struct erase_info *instr)
+{
+ struct spiflash_priv *priv = to_spiflash(mtd);
+ const struct opcodes *op;
+ u32 temp, reg;
+
+ if (instr->addr + instr->len > mtd->size)
+ return -EINVAL;
+
+ mutex_lock(&priv->lock);
+
+ spiflash_sendcmd(priv, SPI_WRITE_ENABLE, 0);
+ reg = spiflash_wait_busy(priv);
+
+ op = &stm_opcodes[SPI_SECTOR_ERASE];
+ temp = ((u32)instr->addr << 8) | (u32)(op->code);
+ spiflash_write_reg(priv, SPI_FLASH_OPCODE, temp);
+
+ reg &= ~SPI_CTL_TX_RX_CNT_MASK;
+ reg |= op->tx_cnt | SPI_CTL_START;
+ spiflash_write_reg(priv, SPI_FLASH_CTL, reg);
+
+ spiflash_wait_complete(priv, 20);
+
+ mutex_unlock(&priv->lock);
+
+ instr->state = MTD_ERASE_DONE;
+ mtd_erase_callback(instr);
+
+ return 0;
+}
+
+static int
+spiflash_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen,
+ u_char *buf)
+{
+ struct spiflash_priv *priv = to_spiflash(mtd);
+
+ if (!len)
+ return 0;
+
+ if (from + len > mtd->size)
+ return -EINVAL;
+
+ *retlen = len;
+
+ mutex_lock(&priv->lock);
+
+ memcpy_fromio(buf, priv->readaddr + from, len);
+
+ mutex_unlock(&priv->lock);
+
+ return 0;
+}
+
+static int
+spiflash_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen,
+ const u8 *buf)
+{
+ struct spiflash_priv *priv = to_spiflash(mtd);
+ u32 opcode, bytes_left;
+
+ *retlen = 0;
+
+ if (!len)
+ return 0;
+
+ if (to + len > mtd->size)
+ return -EINVAL;
+
+ bytes_left = len;
+
+ do {
+ u32 read_len, reg, page_offset, spi_data = 0;
+
+ read_len = min(bytes_left, sizeof(u32));
+
+ /* 32-bit writes cannot span across a page boundary
+ * (256 bytes). This types of writes require two page
+ * program operations to handle it correctly. The STM part
+ * will write the overflow data to the beginning of the
+ * current page as opposed to the subsequent page.
+ */
+ page_offset = (to & (STM_PAGE_SIZE - 1)) + read_len;
+
+ if (page_offset > STM_PAGE_SIZE)
+ read_len -= (page_offset - STM_PAGE_SIZE);
+
+ mutex_lock(&priv->lock);
+
+ spiflash_sendcmd(priv, SPI_WRITE_ENABLE, 0);
+ spi_data = 0;
+ switch (read_len) {
+ case 4:
+ spi_data |= buf[3] << 24;
+ /* fall through */
+ case 3:
+ spi_data |= buf[2] << 16;
+ /* fall through */
+ case 2:
+ spi_data |= buf[1] << 8;
+ /* fall through */
+ case 1:
+ spi_data |= buf[0] & 0xff;
+ break;
+ default:
+ break;
+ }
+
+ spiflash_write_reg(priv, SPI_FLASH_DATA, spi_data);
+ opcode = stm_opcodes[SPI_PAGE_PROGRAM].code |
+ (to & 0x00ffffff) << 8;
+ spiflash_write_reg(priv, SPI_FLASH_OPCODE, opcode);
+
+ reg = spiflash_read_reg(priv, SPI_FLASH_CTL);
+ reg &= ~SPI_CTL_TX_RX_CNT_MASK;
+ reg |= (read_len + 4) | SPI_CTL_START;
+ spiflash_write_reg(priv, SPI_FLASH_CTL, reg);
+
+ spiflash_wait_complete(priv, 1);
+
+ mutex_unlock(&priv->lock);
+
+ bytes_left -= read_len;
+ to += read_len;
+ buf += read_len;
+
+ *retlen += read_len;
+ } while (bytes_left != 0);
+
+ return 0;
+}
+
+#if defined CONFIG_MTD_REDBOOT_PARTS || CONFIG_MTD_MYLOADER_PARTS
+static const char * const part_probe_types[] = {
+ "cmdlinepart", "RedBoot", "MyLoader", NULL
+};
+#endif
+
+static int
+spiflash_probe(struct platform_device *pdev)
+{
+ struct spiflash_priv *priv;
+ struct mtd_info *mtd;
+ struct resource *res;
+ int index;
+ int result = 0;
+
+ priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ mutex_init(&priv->lock);
+ mtd = &priv->mtd;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ priv->mmraddr = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(priv->mmraddr)) {
+ dev_warn(&pdev->dev, "failed to map flash MMR\n");
+ return PTR_ERR(priv->mmraddr);
+ }
+
+ index = spiflash_probe_chip(pdev, priv);
+ if (!index) {
+ dev_warn(&pdev->dev, "found no flash device\n");
+ return -ENODEV;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ priv->readaddr = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(priv->readaddr)) {
+ dev_warn(&pdev->dev, "failed to map flash read mem\n");
+ return PTR_ERR(priv->readaddr);
+ }
+
+ platform_set_drvdata(pdev, priv);
+ mtd->name = "spiflash";
+ mtd->type = MTD_NORFLASH;
+ mtd->flags = (MTD_CAP_NORFLASH|MTD_WRITEABLE);
+ mtd->size = flashconfig_tbl[index].byte_cnt;
+ mtd->erasesize = flashconfig_tbl[index].sector_size;
+ mtd->writesize = 1;
+ mtd->numeraseregions = 0;
+ mtd->eraseregions = NULL;
+ mtd->_erase = spiflash_erase;
+ mtd->_read = spiflash_read;
+ mtd->_write = spiflash_write;
+ mtd->owner = THIS_MODULE;
+
+ dev_info(&pdev->dev, "%lld Kbytes flash detected\n", mtd->size >> 10);
+
+#if defined CONFIG_MTD_REDBOOT_PARTS || CONFIG_MTD_MYLOADER_PARTS
+ /* parse redboot partitions */
+
+ result = mtd_device_parse_register(mtd, part_probe_types,
+ NULL, NULL, 0);
+#endif
+
+ return result;
+}
+
+static int
+spiflash_remove(struct platform_device *pdev)
+{
+ struct spiflash_priv *priv = platform_get_drvdata(pdev);
+
+ mtd_device_unregister(&priv->mtd);
+
+ return 0;
+}
+
+static struct platform_driver spiflash_driver = {
+ .driver.name = DRIVER_NAME,
+ .probe = spiflash_probe,
+ .remove = spiflash_remove,
+};
+
+module_platform_driver(spiflash_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("OpenWrt.org");
+MODULE_AUTHOR("Atheros Communications Inc");
+MODULE_DESCRIPTION("MTD driver for SPI Flash on Atheros AR2315+ SOC");
+MODULE_ALIAS("platform:" DRIVER_NAME);
+
--- /dev/null
+++ b/drivers/mtd/devices/ar2315_spiflash.h
@@ -0,0 +1,106 @@
+/*
+ * Atheros AR2315 SPI Flash Memory support header file.
+ *
+ * Copyright (c) 2005, Atheros Communications Inc.
+ * Copyright (C) 2006 FON Technology, SL.
+ * Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
+ * Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
+ *
+ * This code is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+#ifndef __AR2315_SPIFLASH_H
+#define __AR2315_SPIFLASH_H
+
+#define STM_PAGE_SIZE 256
+
+#define SFI_WRITE_BUFFER_SIZE 4
+#define SFI_FLASH_ADDR_MASK 0x00ffffff
+
+#define STM_8MBIT_SIGNATURE 0x13
+#define STM_M25P80_BYTE_COUNT 1048576
+#define STM_M25P80_SECTOR_COUNT 16
+#define STM_M25P80_SECTOR_SIZE 0x10000
+
+#define STM_16MBIT_SIGNATURE 0x14
+#define STM_M25P16_BYTE_COUNT 2097152
+#define STM_M25P16_SECTOR_COUNT 32
+#define STM_M25P16_SECTOR_SIZE 0x10000
+
+#define STM_32MBIT_SIGNATURE 0x15
+#define STM_M25P32_BYTE_COUNT 4194304
+#define STM_M25P32_SECTOR_COUNT 64
+#define STM_M25P32_SECTOR_SIZE 0x10000
+
+#define STM_64MBIT_SIGNATURE 0x16
+#define STM_M25P64_BYTE_COUNT 8388608
+#define STM_M25P64_SECTOR_COUNT 128
+#define STM_M25P64_SECTOR_SIZE 0x10000
+
+#define STM_128MBIT_SIGNATURE 0x17
+#define STM_M25P128_BYTE_COUNT 16777216
+#define STM_M25P128_SECTOR_COUNT 256
+#define STM_M25P128_SECTOR_SIZE 0x10000
+
+#define STM_1MB_BYTE_COUNT STM_M25P80_BYTE_COUNT
+#define STM_1MB_SECTOR_COUNT STM_M25P80_SECTOR_COUNT
+#define STM_1MB_SECTOR_SIZE STM_M25P80_SECTOR_SIZE
+#define STM_2MB_BYTE_COUNT STM_M25P16_BYTE_COUNT
+#define STM_2MB_SECTOR_COUNT STM_M25P16_SECTOR_COUNT
+#define STM_2MB_SECTOR_SIZE STM_M25P16_SECTOR_SIZE
+#define STM_4MB_BYTE_COUNT STM_M25P32_BYTE_COUNT
+#define STM_4MB_SECTOR_COUNT STM_M25P32_SECTOR_COUNT
+#define STM_4MB_SECTOR_SIZE STM_M25P32_SECTOR_SIZE
+#define STM_8MB_BYTE_COUNT STM_M25P64_BYTE_COUNT
+#define STM_8MB_SECTOR_COUNT STM_M25P64_SECTOR_COUNT
+#define STM_8MB_SECTOR_SIZE STM_M25P64_SECTOR_SIZE
+#define STM_16MB_BYTE_COUNT STM_M25P128_BYTE_COUNT
+#define STM_16MB_SECTOR_COUNT STM_M25P128_SECTOR_COUNT
+#define STM_16MB_SECTOR_SIZE STM_M25P128_SECTOR_SIZE
+
+/*
+ * ST Microelectronics Opcodes for Serial Flash
+ */
+
+#define STM_OP_WR_ENABLE 0x06 /* Write Enable */
+#define STM_OP_WR_DISABLE 0x04 /* Write Disable */
+#define STM_OP_RD_STATUS 0x05 /* Read Status */
+#define STM_OP_WR_STATUS 0x01 /* Write Status */
+#define STM_OP_RD_DATA 0x03 /* Read Data */
+#define STM_OP_FAST_RD_DATA 0x0b /* Fast Read Data */
+#define STM_OP_PAGE_PGRM 0x02 /* Page Program */
+#define STM_OP_SECTOR_ERASE 0xd8 /* Sector Erase */
+#define STM_OP_BULK_ERASE 0xc7 /* Bulk Erase */
+#define STM_OP_DEEP_PWRDOWN 0xb9 /* Deep Power-Down Mode */
+#define STM_OP_RD_SIG 0xab /* Read Electronic Signature */
+
+#define STM_STATUS_WIP 0x01 /* Write-In-Progress */
+#define STM_STATUS_WEL 0x02 /* Write Enable Latch */
+#define STM_STATUS_BP0 0x04 /* Block Protect 0 */
+#define STM_STATUS_BP1 0x08 /* Block Protect 1 */
+#define STM_STATUS_BP2 0x10 /* Block Protect 2 */
+#define STM_STATUS_SRWD 0x80 /* Status Register Write Disable */
+
+/*
+ * SPI Flash Interface Registers
+ */
+
+#define SPI_FLASH_CTL 0x00
+#define SPI_FLASH_OPCODE 0x04
+#define SPI_FLASH_DATA 0x08
+
+#define SPI_CTL_START 0x00000100
+#define SPI_CTL_BUSY 0x00010000
+#define SPI_CTL_TXCNT_MASK 0x0000000f
+#define SPI_CTL_RXCNT_MASK 0x000000f0
+#define SPI_CTL_TX_RX_CNT_MASK 0x000000ff
+#define SPI_CTL_SIZE_MASK 0x00060000
+
+#define SPI_CTL_CLK_SEL_MASK 0x03000000
+#define SPI_OPCODE_MASK 0x000000ff
+
+#define SPI_STATUS_WIP STM_STATUS_WIP
+
+#endif

238
target/linux/atheros/patches-3.18/130-watchdog.patch Normal file
View file

@ -0,0 +1,238 @@
--- /dev/null
+++ b/drivers/watchdog/ar2315-wtd.c
@@ -0,0 +1,209 @@
+/*
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * Copyright (C) 2008 John Crispin <blogic@openwrt.org>
+ * Based on EP93xx and ifxmips wdt driver
+ */
+
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/fs.h>
+#include <linux/ioport.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#define DRIVER_NAME "ar2315-wdt"
+
+#define CLOCK_RATE 40000000
+#define HEARTBEAT(x) (x < 1 || x > 90 ? 20 : x)
+
+#define WDT_REG_TIMER 0x00
+#define WDT_REG_CTRL 0x04
+
+#define WDT_CTRL_ACT_NONE 0x00000000 /* No action */
+#define WDT_CTRL_ACT_NMI 0x00000001 /* NMI on watchdog */
+#define WDT_CTRL_ACT_RESET 0x00000002 /* reset on watchdog */
+
+static int wdt_timeout = 20;
+static int started;
+static int in_use;
+static void __iomem *wdt_base;
+
+static inline void ar2315_wdt_wr(unsigned reg, u32 val)
+{
+ iowrite32(val, wdt_base + reg);
+}
+
+static void
+ar2315_wdt_enable(void)
+{
+ ar2315_wdt_wr(WDT_REG_TIMER, wdt_timeout * CLOCK_RATE);
+}
+
+static ssize_t
+ar2315_wdt_write(struct file *file, const char __user *data, size_t len,
+ loff_t *ppos)
+{
+ if (len)
+ ar2315_wdt_enable();
+ return len;
+}
+
+static int
+ar2315_wdt_open(struct inode *inode, struct file *file)
+{
+ if (in_use)
+ return -EBUSY;
+ ar2315_wdt_enable();
+ in_use = 1;
+ started = 1;
+ return nonseekable_open(inode, file);
+}
+
+static int
+ar2315_wdt_release(struct inode *inode, struct file *file)
+{
+ in_use = 0;
+ return 0;
+}
+
+static irqreturn_t
+ar2315_wdt_interrupt(int irq, void *dev)
+{
+ struct platform_device *pdev = (struct platform_device *)dev;
+
+ if (started) {
+ dev_crit(&pdev->dev, "watchdog expired, rebooting system\n");
+ emergency_restart();
+ } else {
+ ar2315_wdt_wr(WDT_REG_CTRL, 0);
+ ar2315_wdt_wr(WDT_REG_TIMER, 0);
+ }
+ return IRQ_HANDLED;
+}
+
+static struct watchdog_info ident = {
+ .options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING,
+ .identity = "ar2315 Watchdog",
+};
+
+static long
+ar2315_wdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ int new_wdt_timeout;
+ int ret = -ENOIOCTLCMD;
+
+ switch (cmd) {
+ case WDIOC_GETSUPPORT:
+ ret = copy_to_user((void __user *)arg, &ident, sizeof(ident)) ?
+ -EFAULT : 0;
+ break;
+ case WDIOC_KEEPALIVE:
+ ar2315_wdt_enable();
+ ret = 0;
+ break;
+ case WDIOC_SETTIMEOUT:
+ ret = get_user(new_wdt_timeout, (int __user *)arg);
+ if (ret)
+ break;
+ wdt_timeout = HEARTBEAT(new_wdt_timeout);
+ ar2315_wdt_enable();
+ break;
+ case WDIOC_GETTIMEOUT:
+ ret = put_user(wdt_timeout, (int __user *)arg);
+ break;
+ }
+ return ret;
+}
+
+static const struct file_operations ar2315_wdt_fops = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .write = ar2315_wdt_write,
+ .unlocked_ioctl = ar2315_wdt_ioctl,
+ .open = ar2315_wdt_open,
+ .release = ar2315_wdt_release,
+};
+
+static struct miscdevice ar2315_wdt_miscdev = {
+ .minor = WATCHDOG_MINOR,
+ .name = "watchdog",
+ .fops = &ar2315_wdt_fops,
+};
+
+static int
+ar2315_wdt_probe(struct platform_device *dev)
+{
+ struct resource *mem_res, *irq_res;
+ int ret = 0;
+
+ if (wdt_base)
+ return -EBUSY;
+
+ irq_res = platform_get_resource(dev, IORESOURCE_IRQ, 0);
+ if (!irq_res) {
+ dev_err(&dev->dev, "no IRQ resource\n");
+ return -ENOENT;
+ }
+
+ mem_res = platform_get_resource(dev, IORESOURCE_MEM, 0);
+ wdt_base = devm_ioremap_resource(&dev->dev, mem_res);
+ if (IS_ERR(wdt_base))
+ return PTR_ERR(wdt_base);
+
+ ret = devm_request_irq(&dev->dev, irq_res->start, ar2315_wdt_interrupt,
+ IRQF_DISABLED, DRIVER_NAME, dev);
+ if (ret) {
+ dev_err(&dev->dev, "failed to register inetrrupt\n");
+ goto out;
+ }
+
+ ret = misc_register(&ar2315_wdt_miscdev);
+ if (ret)
+ dev_err(&dev->dev, "failed to register miscdev\n");
+
+out:
+ return ret;
+}
+
+static int
+ar2315_wdt_remove(struct platform_device *dev)
+{
+ misc_deregister(&ar2315_wdt_miscdev);
+ return 0;
+}
+
+static struct platform_driver ar2315_wdt_driver = {
+ .probe = ar2315_wdt_probe,
+ .remove = ar2315_wdt_remove,
+ .driver = {
+ .name = DRIVER_NAME,
+ .owner = THIS_MODULE,
+ },
+};
+
+module_platform_driver(ar2315_wdt_driver);
+
+MODULE_DESCRIPTION("Atheros AR2315 hardware watchdog driver");
+MODULE_AUTHOR("John Crispin <blogic@openwrt.org>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRIVER_NAME);
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -1257,6 +1257,13 @@ config RALINK_WDT
help
Hardware driver for the Ralink SoC Watchdog Timer.
+config AR2315_WDT
+ tristate "Atheros AR2315+ WiSoCs Watchdog Timer"
+ depends on ATHEROS_AR231X
+ help
+ Hardware driver for the built-in watchdog timer on the Atheros
+ AR2315/AR2316 WiSoCs.
+
# PARISC Architecture
# POWERPC Architecture
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -138,6 +138,7 @@ obj-$(CONFIG_GPIO_WDT) += old_gpio_wdt.o
obj-$(CONFIG_PNX833X_WDT) += pnx833x_wdt.o
obj-$(CONFIG_SIBYTE_WDOG) += sb_wdog.o
obj-$(CONFIG_AR7_WDT) += ar7_wdt.o
+obj-$(CONFIG_AR2315_WDT) += ar2315-wtd.o
obj-$(CONFIG_TXX9_WDT) += txx9wdt.o
obj-$(CONFIG_OCTEON_WDT) += octeon-wdt.o
octeon-wdt-y := octeon-wdt-main.o octeon-wdt-nmi.o

60
target/linux/atheros/patches-3.18/140-redboot_boardconfig.patch Normal file
View file

@ -0,0 +1,60 @@
--- a/drivers/mtd/redboot.c
+++ b/drivers/mtd/redboot.c
@@ -30,6 +30,8 @@
#include <linux/mtd/partitions.h>
#include <linux/module.h>
+#define BOARD_CONFIG_PART "boardconfig"
+
struct fis_image_desc {
unsigned char name[16]; // Null terminated name
uint32_t flash_base; // Address within FLASH of image
@@ -60,6 +62,7 @@ static int parse_redboot_partitions(stru
struct mtd_partition **pparts,
struct mtd_part_parser_data *data)
{
+ unsigned long max_offset = 0;
int nrparts = 0;
struct fis_image_desc *buf;
struct mtd_partition *parts;
@@ -225,14 +228,15 @@ static int parse_redboot_partitions(stru
}
}
#endif
- parts = kzalloc(sizeof(*parts)*nrparts + nulllen + namelen, GFP_KERNEL);
+ parts = kzalloc(sizeof(*parts) * (nrparts + 1) + nulllen + namelen +
+ sizeof(BOARD_CONFIG_PART), GFP_KERNEL);
if (!parts) {
ret = -ENOMEM;
goto out;
}
- nullname = (char *)&parts[nrparts];
+ nullname = (char *)&parts[nrparts + 1];
#ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
if (nulllen > 0) {
strcpy(nullname, nullstring);
@@ -251,6 +255,8 @@ static int parse_redboot_partitions(stru
}
#endif
for ( ; i<nrparts; i++) {
+ if (max_offset < buf[i].flash_base + buf[i].size)
+ max_offset = buf[i].flash_base + buf[i].size;
parts[i].size = fl->img->size;
parts[i].offset = fl->img->flash_base;
parts[i].name = names;
@@ -284,6 +290,13 @@ static int parse_redboot_partitions(stru
fl = fl->next;
kfree(tmp_fl);
}
+ if (master->size - max_offset >= master->erasesize) {
+ parts[nrparts].size = master->size - max_offset;
+ parts[nrparts].offset = max_offset;
+ parts[nrparts].name = names;
+ strcpy(names, BOARD_CONFIG_PART);
+ nrparts++;
+ }
ret = nrparts;
*pparts = parts;
out:

44
target/linux/atheros/patches-3.18/141-redboot_partition_scan.patch Normal file
View file

@ -0,0 +1,44 @@
--- a/drivers/mtd/redboot.c
+++ b/drivers/mtd/redboot.c
@@ -79,12 +79,18 @@ static int parse_redboot_partitions(stru
static char nullstring[] = "unallocated";
#endif
+ buf = vmalloc(master->erasesize);
+ if (!buf)
+ return -ENOMEM;
+
+ restart:
if ( directory < 0 ) {
offset = master->size + directory * master->erasesize;
while (mtd_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;
@@ -97,10 +103,6 @@ static int parse_redboot_partitions(stru
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);
@@ -173,6 +175,11 @@ static int parse_redboot_partitions(stru
}
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;

72
target/linux/atheros/patches-3.18/142-redboot_various_erase_size_fix.patch Normal file
View file

@ -0,0 +1,72 @@
--- a/drivers/mtd/redboot.c
+++ b/drivers/mtd/redboot.c
@@ -58,6 +58,22 @@ static inline int redboot_checksum(struc
return 1;
}
+static uint32_t mtd_get_offset_erasesize(struct mtd_info *mtd, uint64_t offset)
+{
+ struct mtd_erase_region_info *regions = mtd->eraseregions;
+ int i;
+
+ for (i = 0; i < mtd->numeraseregions; i++) {
+ if (regions[i].offset +
+ regions[i].numblocks * regions[i].erasesize <= offset)
+ continue;
+
+ return regions[i].erasesize;
+ }
+
+ return mtd->erasesize;
+}
+
static int parse_redboot_partitions(struct mtd_info *master,
struct mtd_partition **pparts,
struct mtd_part_parser_data *data)
@@ -74,6 +90,7 @@ static int parse_redboot_partitions(stru
int namelen = 0;
int nulllen = 0;
int numslots;
+ int first_slot;
unsigned long offset;
#ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
static char nullstring[] = "unallocated";
@@ -186,7 +203,10 @@ static int parse_redboot_partitions(stru
goto out;
}
- for (i = 0; i < numslots; i++) {
+ first_slot = (buf[i].flash_base & (master->erasesize - 1)) /
+ sizeof(struct fis_image_desc);
+
+ for (i = first_slot; i < first_slot + numslots; i++) {
struct fis_list *new_fl, **prev;
if (buf[i].name[0] == 0xff) {
@@ -262,12 +282,13 @@ static int parse_redboot_partitions(stru
}
#endif
for ( ; i<nrparts; i++) {
- if (max_offset < buf[i].flash_base + buf[i].size)
- max_offset = buf[i].flash_base + buf[i].size;
parts[i].size = fl->img->size;
parts[i].offset = fl->img->flash_base;
parts[i].name = names;
+ if (max_offset < parts[i].offset + parts[i].size)
+ max_offset = parts[i].offset + parts[i].size;
+
strcpy(names, fl->img->name);
#ifdef CONFIG_MTD_REDBOOT_PARTS_READONLY
if (!memcmp(names, "RedBoot", 8) ||
@@ -297,7 +318,9 @@ static int parse_redboot_partitions(stru
fl = fl->next;
kfree(tmp_fl);
}
- if (master->size - max_offset >= master->erasesize) {
+
+ if (master->size - max_offset >=
+ mtd_get_offset_erasesize(master, max_offset)) {
parts[nrparts].size = master->size - max_offset;
parts[nrparts].offset = max_offset;
parts[nrparts].name = names;

72
target/linux/atheros/patches-3.18/210-reset_button.patch Normal file
View file

@ -0,0 +1,72 @@
--- a/arch/mips/ar231x/Makefile
+++ b/arch/mips/ar231x/Makefile
@@ -8,7 +8,7 @@
# Copyright (C) 2006-2009 Felix Fietkau <nbd@openwrt.org>
#
-obj-y += board.o prom.o devices.o
+obj-y += board.o prom.o devices.o reset.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
--- /dev/null
+++ b/arch/mips/ar231x/reset.c
@@ -0,0 +1,58 @@
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <ar231x_platform.h>
+#include <ar231x.h>
+#include "devices.h"
+
+static int __init
+ar231x_init_reset(void)
+{
+ struct platform_device *pdev;
+ struct gpio_keys_platform_data pdata;
+ struct gpio_keys_button *p;
+ int err;
+
+ if (ar231x_board.config->reset_config_gpio == 0xffff)
+ return -ENODEV;
+
+ p = kzalloc(sizeof(*p), GFP_KERNEL);
+ if (!p)
+ goto err;
+
+ p->desc = "reset";
+ p->type = EV_KEY;
+ p->code = KEY_RESTART;
+ p->debounce_interval = 60;
+ p->gpio = ar231x_board.config->reset_config_gpio;
+
+ memset(&pdata, 0, sizeof(pdata));
+ pdata.poll_interval = 20;
+ pdata.buttons = p;
+ pdata.nbuttons = 1;
+
+ pdev = platform_device_alloc("gpio-keys-polled", 0);
+ if (!pdev)
+ goto err_free;
+
+ err = platform_device_add_data(pdev, &pdata, sizeof(pdata));
+ if (err)
+ goto err_put_pdev;
+
+ err = platform_device_add(pdev);
+ if (err)
+ goto err_put_pdev;
+
+ return 0;
+
+err_put_pdev:
+ platform_device_put(pdev);
+err_free:
+ kfree(p);
+err:
+ return -ENOMEM;
+}
+
+module_init(ar231x_init_reset);

91
target/linux/atheros/patches-3.18/220-enet_micrel_workaround.patch Normal file
View file

@ -0,0 +1,91 @@
--- a/drivers/net/ethernet/atheros/ar231x/ar231x.c
+++ b/drivers/net/ethernet/atheros/ar231x/ar231x.c
@@ -135,6 +135,7 @@ static int ar231x_mdiobus_write(struct m
static int ar231x_mdiobus_reset(struct mii_bus *bus);
static int ar231x_mdiobus_probe(struct net_device *dev);
static void ar231x_adjust_link(struct net_device *dev);
+static bool no_phy;
#ifndef ERR
#define ERR(fmt, args...) printk("%s: " fmt, __func__, ##args)
@@ -167,6 +168,32 @@ static const struct net_device_ops ar231
#endif
};
+static int get_phy_id(struct mii_bus *bus, int addr, u32 *phy_id)
+{
+ int phy_reg;
+
+ /**
+ * Grab the bits from PHYIR1, and put them
+ * in the upper half.
+ */
+ phy_reg = mdiobus_read(bus, addr, MII_PHYSID1);
+
+ if (phy_reg < 0)
+ return -EIO;
+
+ *phy_id = (phy_reg & 0xffff) << 16;
+
+ /* Grab the bits from PHYIR2, and put them in the lower half */
+ phy_reg = mdiobus_read(bus, addr, MII_PHYSID2);
+
+ if (phy_reg < 0)
+ return -EIO;
+
+ *phy_id |= (phy_reg & 0xffff);
+
+ return 0;
+}
+
static int ar231x_probe(struct platform_device *pdev)
{
struct net_device *dev;
@@ -273,6 +300,24 @@ static int ar231x_probe(struct platform_
mdiobus_register(sp->mii_bus);
+ /**
+ * Workaround for Micrel switch, which is only available on
+ * one PHY and cannot be configured through MDIO.
+ */
+ if (!no_phy) {
+ u32 phy_id = 0;
+
+ get_phy_id(sp->mii_bus, 1, &phy_id);
+ if (phy_id == 0x00221450)
+ no_phy = true;
+ }
+ if (no_phy) {
+ sp->link = 1;
+ netif_carrier_on(dev);
+ return 0;
+ }
+ no_phy = true;
+
if (ar231x_mdiobus_probe(dev) != 0) {
printk(KERN_ERR "%s: mdiobus_probe failed\n", dev->name);
rx_tasklet_cleanup(dev);
@@ -329,8 +374,10 @@ static int ar231x_remove(struct platform
rx_tasklet_cleanup(dev);
ar231x_init_cleanup(dev);
unregister_netdev(dev);
- mdiobus_unregister(sp->mii_bus);
- mdiobus_free(sp->mii_bus);
+ if (sp->mii_bus) {
+ mdiobus_unregister(sp->mii_bus);
+ mdiobus_free(sp->mii_bus);
+ }
kfree(dev);
return 0;
}
@@ -1079,6 +1126,9 @@ static int ar231x_ioctl(struct net_devic
{
struct ar231x_private *sp = netdev_priv(dev);
+ if (!sp->phy_dev)
+ return -ENODEV;
+
switch (cmd) {
case SIOCGMIIPHY:
case SIOCGMIIREG: