diff options
Diffstat (limited to 'target/linux/ath25/patches-4.4/107-ar5312_gpio.patch')
| -rw-r--r-- | target/linux/ath25/patches-4.4/107-ar5312_gpio.patch | 212 |
1 files changed, 0 insertions, 212 deletions
diff --git a/target/linux/ath25/patches-4.4/107-ar5312_gpio.patch b/target/linux/ath25/patches-4.4/107-ar5312_gpio.patch deleted file mode 100644 index e6196c88a4..0000000000 --- a/target/linux/ath25/patches-4.4/107-ar5312_gpio.patch +++ /dev/null @@ -1,212 +0,0 @@ ---- a/arch/mips/ath25/Kconfig -+++ b/arch/mips/ath25/Kconfig -@@ -1,6 +1,7 @@ - config SOC_AR5312 - bool "Atheros AR5312/AR2312+ SoC support" - depends on ATH25 -+ select GPIO_AR5312 - default y - - config SOC_AR2315 ---- a/arch/mips/ath25/ar5312.c -+++ b/arch/mips/ath25/ar5312.c -@@ -22,6 +22,7 @@ - #include <linux/platform_device.h> - #include <linux/mtd/physmap.h> - #include <linux/reboot.h> -+#include <linux/gpio.h> - #include <asm/bootinfo.h> - #include <asm/reboot.h> - #include <asm/time.h> -@@ -180,6 +181,22 @@ static struct platform_device ar5312_phy - .num_resources = 1, - }; - -+static struct resource ar5312_gpio_res[] = { -+ { -+ .name = "ar5312-gpio", -+ .flags = IORESOURCE_MEM, -+ .start = AR5312_GPIO_BASE, -+ .end = AR5312_GPIO_BASE + AR5312_GPIO_SIZE - 1, -+ }, -+}; -+ -+static struct platform_device ar5312_gpio = { -+ .name = "ar5312-gpio", -+ .id = -1, -+ .resource = ar5312_gpio_res, -+ .num_resources = ARRAY_SIZE(ar5312_gpio_res), -+}; -+ - static void __init ar5312_flash_init(void) - { - void __iomem *flashctl_base; -@@ -247,6 +264,8 @@ void __init ar5312_init_devices(void) - - platform_device_register(&ar5312_physmap_flash); - -+ platform_device_register(&ar5312_gpio); -+ - switch (ath25_soc) { - case ATH25_SOC_AR5312: - if (!ath25_board.radio) ---- a/drivers/gpio/Kconfig -+++ b/drivers/gpio/Kconfig -@@ -142,6 +142,13 @@ config GPIO_BRCMSTB - help - Say yes here to enable GPIO support for Broadcom STB (BCM7XXX) SoCs. - -+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 -@@ -21,6 +21,7 @@ obj-$(CONFIG_GPIO_ADP5588) += gpio-adp55 - obj-$(CONFIG_GPIO_ALTERA) += gpio-altera.o - obj-$(CONFIG_GPIO_AMD8111) += gpio-amd8111.o - obj-$(CONFIG_GPIO_AMDPT) += gpio-amdpt.o -+obj-$(CONFIG_GPIO_AR5312) += gpio-ar5312.o - obj-$(CONFIG_GPIO_ARIZONA) += gpio-arizona.o - obj-$(CONFIG_ATH79) += gpio-ath79.o - obj-$(CONFIG_GPIO_BCM_KONA) += gpio-bcm-kona.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@nbd.name> -+ * 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); ---- a/arch/mips/Kconfig -+++ b/arch/mips/Kconfig -@@ -118,6 +118,7 @@ config ATH25 - select SYS_SUPPORTS_BIG_ENDIAN - select SYS_SUPPORTS_32BIT_KERNEL - select SYS_HAS_EARLY_PRINTK -+ select ARCH_REQUIRE_GPIOLIB - help - Support for Atheros AR231x and Atheros AR531x based boards - |