diff options
Diffstat (limited to 'target/linux/brcm63xx/patches-4.4/375-MIPS-BCM63XX-switch-to-new-gpio-driver.patch')
| -rw-r--r-- | target/linux/brcm63xx/patches-4.4/375-MIPS-BCM63XX-switch-to-new-gpio-driver.patch | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/target/linux/brcm63xx/patches-4.4/375-MIPS-BCM63XX-switch-to-new-gpio-driver.patch b/target/linux/brcm63xx/patches-4.4/375-MIPS-BCM63XX-switch-to-new-gpio-driver.patch deleted file mode 100644 index 8df026fac8..0000000000 --- a/target/linux/brcm63xx/patches-4.4/375-MIPS-BCM63XX-switch-to-new-gpio-driver.patch +++ /dev/null @@ -1,216 +0,0 @@ -From cc99dca188bb63ba390008e2f7fa62d0300233e0 Mon Sep 17 00:00:00 2001 -From: Jonas Gorski <jogo@openwrt.org> -Date: Fri, 20 Feb 2015 23:58:54 +0100 -Subject: [PATCH 2/6] MIPS: BCM63XX: switch to new gpio driver - -Signed-off-by: Jonas Gorski <jogo@openwrt.org> ---- - arch/mips/bcm63xx/boards/board_common.c | 2 + - arch/mips/bcm63xx/gpio.c | 147 +++++++------------------------ - arch/mips/bcm63xx/setup.c | 3 - - 3 files changed, 33 insertions(+), 119 deletions(-) - ---- a/arch/mips/bcm63xx/boards/board_common.c -+++ b/arch/mips/bcm63xx/boards/board_common.c -@@ -189,6 +189,8 @@ int __init board_register_devices(void) - } - #endif - -+ bcm63xx_gpio_init(); -+ - if (board.has_uart0) - bcm63xx_uart_register(0); - ---- a/arch/mips/bcm63xx/gpio.c -+++ b/arch/mips/bcm63xx/gpio.c -@@ -5,147 +5,62 @@ - * - * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr> - * Copyright (C) 2008-2011 Florian Fainelli <florian@openwrt.org> -+ * Copyright (C) Jonas Gorski <jogo@openwrt.org> - */ - - #include <linux/kernel.h> --#include <linux/module.h> --#include <linux/spinlock.h> - #include <linux/platform_device.h> -+#include <linux/gpio/driver.h> - #include <linux/gpio.h> - - #include <bcm63xx_cpu.h> - #include <bcm63xx_gpio.h> --#include <bcm63xx_io.h> - #include <bcm63xx_regs.h> - --static u32 gpio_out_low_reg; -- --static void bcm63xx_gpio_out_low_reg_init(void) -+static void __init bcm63xx_gpio_init_one(int id, int dir, int data, int ngpio) - { -- switch (bcm63xx_get_cpu_id()) { -- case BCM6345_CPU_ID: -- gpio_out_low_reg = GPIO_DATA_LO_REG_6345; -- break; -- default: -- gpio_out_low_reg = GPIO_DATA_LO_REG; -- break; -- } --} -- --static DEFINE_SPINLOCK(bcm63xx_gpio_lock); --static u32 gpio_out_low, gpio_out_high; -+ struct resource res[2]; -+ struct bgpio_pdata pdata; - --static void bcm63xx_gpio_set(struct gpio_chip *chip, -- unsigned gpio, int val) --{ -- u32 reg; -- u32 mask; -- u32 *v; -- unsigned long flags; -- -- if (gpio >= chip->ngpio) -- BUG(); -- -- if (gpio < 32) { -- reg = gpio_out_low_reg; -- mask = 1 << gpio; -- v = &gpio_out_low; -- } else { -- reg = GPIO_DATA_HI_REG; -- mask = 1 << (gpio - 32); -- v = &gpio_out_high; -- } -- -- spin_lock_irqsave(&bcm63xx_gpio_lock, flags); -- if (val) -- *v |= mask; -- else -- *v &= ~mask; -- bcm_gpio_writel(*v, reg); -- spin_unlock_irqrestore(&bcm63xx_gpio_lock, flags); --} -+ memset(res, 0, sizeof(res)); -+ memset(&pdata, 0, sizeof(pdata)); - --static int bcm63xx_gpio_get(struct gpio_chip *chip, unsigned gpio) --{ -- u32 reg; -- u32 mask; -+ res[0].flags = IORESOURCE_MEM; -+ res[0].start = bcm63xx_regset_address(RSET_GPIO); -+ res[0].start += dir; - -- if (gpio >= chip->ngpio) -- BUG(); -+ res[0].end = res[0].start + 3; - -- if (gpio < 32) { -- reg = gpio_out_low_reg; -- mask = 1 << gpio; -- } else { -- reg = GPIO_DATA_HI_REG; -- mask = 1 << (gpio - 32); -- } -+ res[1].flags = IORESOURCE_MEM; -+ res[1].start = bcm63xx_regset_address(RSET_GPIO); -+ res[1].start += data; - -- return !!(bcm_gpio_readl(reg) & mask); --} -+ res[1].end = res[1].start + 3; - --static int bcm63xx_gpio_set_direction(struct gpio_chip *chip, -- unsigned gpio, int dir) --{ -- u32 reg; -- u32 mask; -- u32 tmp; -- unsigned long flags; -- -- if (gpio >= chip->ngpio) -- BUG(); -- -- if (gpio < 32) { -- reg = GPIO_CTL_LO_REG; -- mask = 1 << gpio; -- } else { -- reg = GPIO_CTL_HI_REG; -- mask = 1 << (gpio - 32); -- } -- -- spin_lock_irqsave(&bcm63xx_gpio_lock, flags); -- tmp = bcm_gpio_readl(reg); -- if (dir == BCM63XX_GPIO_DIR_IN) -- tmp &= ~mask; -- else -- tmp |= mask; -- bcm_gpio_writel(tmp, reg); -- spin_unlock_irqrestore(&bcm63xx_gpio_lock, flags); -+ pdata.base = id * 32; -+ pdata.ngpio = ngpio; - -- return 0; -+ platform_device_register_resndata(NULL, "bcm63xx-gpio", id, res, 2, -+ &pdata, sizeof(pdata)); - } - --static int bcm63xx_gpio_direction_input(struct gpio_chip *chip, unsigned gpio) -+int __init bcm63xx_gpio_init(void) - { -- return bcm63xx_gpio_set_direction(chip, gpio, BCM63XX_GPIO_DIR_IN); --} -+ int ngpio = bcm63xx_gpio_count(); -+ int data_low_reg; - --static int bcm63xx_gpio_direction_output(struct gpio_chip *chip, -- unsigned gpio, int value) --{ -- bcm63xx_gpio_set(chip, gpio, value); -- return bcm63xx_gpio_set_direction(chip, gpio, BCM63XX_GPIO_DIR_OUT); --} -+ if (BCMCPU_IS_6345()) -+ data_low_reg = GPIO_DATA_LO_REG_6345; -+ else -+ data_low_reg = GPIO_DATA_LO_REG; - -+ bcm63xx_gpio_init_one(0, GPIO_CTL_LO_REG, data_low_reg, min(ngpio, 32)); - --static struct gpio_chip bcm63xx_gpio_chip = { -- .label = "bcm63xx-gpio", -- .direction_input = bcm63xx_gpio_direction_input, -- .direction_output = bcm63xx_gpio_direction_output, -- .get = bcm63xx_gpio_get, -- .set = bcm63xx_gpio_set, -- .base = 0, --}; -+ if (ngpio <= 32) -+ return 0; - --int __init bcm63xx_gpio_init(void) --{ -- bcm63xx_gpio_out_low_reg_init(); -+ bcm63xx_gpio_init_one(1, GPIO_CTL_HI_REG, GPIO_DATA_HI_REG, ngpio - 32); - -- gpio_out_low = bcm_gpio_readl(gpio_out_low_reg); -- if (!BCMCPU_IS_6345()) -- gpio_out_high = bcm_gpio_readl(GPIO_DATA_HI_REG); -- bcm63xx_gpio_chip.ngpio = bcm63xx_gpio_count(); -- pr_info("registering %d GPIOs\n", bcm63xx_gpio_chip.ngpio); -+ return 0; - -- return gpiochip_add(&bcm63xx_gpio_chip); - } ---- a/arch/mips/bcm63xx/setup.c -+++ b/arch/mips/bcm63xx/setup.c -@@ -164,9 +164,6 @@ void __init plat_mem_setup(void) - - int __init bcm63xx_register_devices(void) - { -- /* register gpiochip */ -- bcm63xx_gpio_init(); -- - return board_register_devices(); - } - |