diff options
Diffstat (limited to 'target/linux/brcm63xx/patches-3.18/377-MIPS-BCM63XX-register-lookup-for-ephy-reset-gpio.patch')
| -rw-r--r-- | target/linux/brcm63xx/patches-3.18/377-MIPS-BCM63XX-register-lookup-for-ephy-reset-gpio.patch | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/target/linux/brcm63xx/patches-3.18/377-MIPS-BCM63XX-register-lookup-for-ephy-reset-gpio.patch b/target/linux/brcm63xx/patches-3.18/377-MIPS-BCM63XX-register-lookup-for-ephy-reset-gpio.patch new file mode 100644 index 0000000000..30f6ba5098 --- /dev/null +++ b/target/linux/brcm63xx/patches-3.18/377-MIPS-BCM63XX-register-lookup-for-ephy-reset-gpio.patch @@ -0,0 +1,138 @@ +From d13bdf92ec885105cf107183f8464c40e5f3b93b Mon Sep 17 00:00:00 2001 +From: Jonas Gorski <jogo@openwrt.org> +Date: Sat, 21 Feb 2015 17:21:59 +0100 +Subject: [PATCH 4/6] MIPS: BCM63XX: register lookup for ephy-reset gpio + + +Signed-off-by: Jonas Gorski <jogo@openwrt.org> +--- + arch/mips/bcm63xx/boards/board_bcm963xx.c | 2 +- + arch/mips/bcm63xx/boards/board_common.c | 7 +++-- + arch/mips/bcm63xx/gpio.c | 32 ++++++++++++++++++++ + arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h | 2 ++ + .../mips/include/asm/mach-bcm63xx/board_bcm963xx.h | 5 +-- + 5 files changed, 42 insertions(+), 6 deletions(-) + +--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c ++++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c +@@ -59,7 +59,7 @@ static struct board_info __initdata boar + }, + + .ephy_reset_gpio = 36, +- .ephy_reset_gpio_flags = GPIOF_INIT_HIGH, ++ .ephy_reset_gpio_flags = GPIO_ACTIVE_LOW, + }; + #endif + +--- a/arch/mips/bcm63xx/boards/board_common.c ++++ b/arch/mips/bcm63xx/boards/board_common.c +@@ -278,9 +278,10 @@ int __init board_register_devices(void) + platform_device_register(&bcm63xx_gpio_leds); + } + +- if (board.ephy_reset_gpio && board.ephy_reset_gpio_flags) +- gpio_request_one(board.ephy_reset_gpio, +- board.ephy_reset_gpio_flags, "ephy-reset"); ++ if (board.ephy_reset_gpio && board.ephy_reset_gpio_flags) { ++ bcm63xx_gpio_ephy_reset(board.ephy_reset_gpio, ++ board.ephy_reset_gpio_flags); ++ } + + /* count number of BUTTONs defined by this device */ + while (button_count < ARRAY_SIZE(board.buttons) && board.buttons[button_count].desc) +--- a/arch/mips/bcm63xx/gpio.c ++++ b/arch/mips/bcm63xx/gpio.c +@@ -8,15 +8,24 @@ + * Copyright (C) Jonas Gorski <jogo@openwrt.org> + */ + ++#include <asm/addrspace.h> ++ + #include <linux/kernel.h> + #include <linux/platform_device.h> + #include <linux/basic_mmio_gpio.h> + #include <linux/gpio.h> ++#include <linux/gpio/machine.h> + + #include <bcm63xx_cpu.h> + #include <bcm63xx_gpio.h> + #include <bcm63xx_regs.h> + ++/* for registering lookups; make them large enough to hold OF names */ ++static char *gpio_chip_labels[] = { ++ "xxxxxxxx.gpio-controller", ++ "xxxxxxxx.gpio-controller", ++}; ++ + static void __init bcm63xx_gpio_init_one(int id, int dir, int data, int ngpio) + { + struct resource res[2]; +@@ -40,6 +49,7 @@ static void __init bcm63xx_gpio_init_one + pdata.base = id * 32; + pdata.ngpio = ngpio; + ++ sprintf(gpio_chip_labels[id], "bcm63xx-gpio.%d", id); + platform_device_register_resndata(NULL, "bcm63xx-gpio", id, res, 2, + &pdata, sizeof(pdata)); + } +@@ -64,3 +74,25 @@ int __init bcm63xx_gpio_init(void) + return 0; + + } ++ ++static struct gpiod_lookup_table ephy_reset = { ++ .dev_id = "bcm63xx_enet_shared.0", ++ .table = { ++ { /* filled at runtime */ }, ++ { }, ++ }, ++}; ++ ++ ++void bcm63xx_gpio_ephy_reset(int hw_gpio, enum gpio_lookup_flags flags) ++{ ++ if (ephy_reset.table[0].chip_label) ++ return; ++ ++ ephy_reset.table[0].chip_label = gpio_chip_labels[hw_gpio / 32]; ++ ephy_reset.table[0].chip_hwnum = hw_gpio % 32; ++ ephy_reset.table[0].con_id = "ephy-reset"; ++ ephy_reset.table[0].flags = flags; ++ ++ gpiod_add_lookup_table(&ephy_reset); ++} +--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h ++++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h +@@ -2,9 +2,11 @@ + #define BCM63XX_GPIO_H + + #include <linux/init.h> ++#include <linux/gpio/machine.h> + #include <bcm63xx_cpu.h> + + int __init bcm63xx_gpio_init(void); ++void bcm63xx_gpio_ephy_reset(int hw_gpio, enum gpio_lookup_flags flags); + + static inline unsigned long bcm63xx_gpio_count(void) + { +--- a/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h ++++ b/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h +@@ -4,6 +4,7 @@ + #include <linux/types.h> + #include <linux/gpio.h> + #include <linux/gpio_keys.h> ++#include <linux/gpio/machine.h> + #include <linux/leds.h> + #include <bcm63xx_dev_enet.h> + #include <bcm63xx_dev_usb_usbd.h> +@@ -58,8 +59,8 @@ struct board_info { + /* External PHY reset GPIO */ + unsigned int ephy_reset_gpio; + +- /* External PHY reset GPIO flags from gpio.h */ +- unsigned long ephy_reset_gpio_flags; ++ /* External PHY reset GPIO flags from gpio/machine.h */ ++ enum gpio_lookup_flags ephy_reset_gpio_flags; + + /* fallback sprom config */ + struct fallback_sprom_data fallback_sprom; |