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138 lines
4.0 KiB
138 lines
4.0 KiB
From d13bdf92ec885105cf107183f8464c40e5f3b93b Mon Sep 17 00:00:00 2001
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From: Jonas Gorski <jogo@openwrt.org>
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Date: Sat, 21 Feb 2015 17:21:59 +0100
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Subject: [PATCH 4/6] MIPS: BCM63XX: register lookup for ephy-reset gpio
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Signed-off-by: Jonas Gorski <jogo@openwrt.org>
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---
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arch/mips/bcm63xx/boards/board_bcm963xx.c | 2 +-
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arch/mips/bcm63xx/boards/board_common.c | 7 +++--
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arch/mips/bcm63xx/gpio.c | 32 ++++++++++++++++++++
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arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h | 2 ++
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.../mips/include/asm/mach-bcm63xx/board_bcm963xx.h | 5 +--
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5 files changed, 42 insertions(+), 6 deletions(-)
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--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
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+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
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@@ -54,7 +54,7 @@ static struct board_info __initdata boar
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},
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.ephy_reset_gpio = 36,
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- .ephy_reset_gpio_flags = GPIOF_INIT_HIGH,
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+ .ephy_reset_gpio_flags = GPIO_ACTIVE_LOW,
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};
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#endif
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--- a/arch/mips/bcm63xx/boards/board_common.c
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+++ b/arch/mips/bcm63xx/boards/board_common.c
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@@ -257,9 +257,10 @@ int __init board_register_devices(void)
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platform_device_register(&bcm63xx_gpio_leds);
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- if (board.ephy_reset_gpio && board.ephy_reset_gpio_flags)
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- gpio_request_one(board.ephy_reset_gpio,
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- board.ephy_reset_gpio_flags, "ephy-reset");
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+ if (board.ephy_reset_gpio && board.ephy_reset_gpio_flags) {
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+ bcm63xx_gpio_ephy_reset(board.ephy_reset_gpio,
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+ board.ephy_reset_gpio_flags);
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+ }
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return 0;
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}
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--- a/arch/mips/bcm63xx/gpio.c
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+++ b/arch/mips/bcm63xx/gpio.c
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@@ -8,15 +8,24 @@
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* Copyright (C) Jonas Gorski <jogo@openwrt.org>
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*/
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+#include <asm/addrspace.h>
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+
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#include <linux/kernel.h>
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#include <linux/platform_device.h>
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#include <linux/basic_mmio_gpio.h>
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#include <linux/gpio.h>
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+#include <linux/gpio/machine.h>
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#include <bcm63xx_cpu.h>
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#include <bcm63xx_gpio.h>
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#include <bcm63xx_regs.h>
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+/* for registering lookups; make them large enough to hold OF names */
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+static char *gpio_chip_labels[] = {
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+ "xxxxxxxx.gpio-controller",
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+ "xxxxxxxx.gpio-controller",
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+};
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+
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static void __init bcm63xx_gpio_init_one(int id, int dir, int data, int ngpio)
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{
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struct resource res[2];
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@@ -40,6 +49,7 @@ static void __init bcm63xx_gpio_init_one
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pdata.base = id * 32;
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pdata.ngpio = ngpio;
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+ sprintf(gpio_chip_labels[id], "bcm63xx-gpio.%d", id);
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platform_device_register_resndata(NULL, "bcm63xx-gpio", id, res, 2,
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&pdata, sizeof(pdata));
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}
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@@ -64,3 +74,25 @@ int __init bcm63xx_gpio_init(void)
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return 0;
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}
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+
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+static struct gpiod_lookup_table ephy_reset = {
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+ .dev_id = "bcm63xx_enet_shared.0",
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+ .table = {
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+ { /* filled at runtime */ },
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+ { },
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+ },
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+};
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+
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+
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+void bcm63xx_gpio_ephy_reset(int hw_gpio, enum gpio_lookup_flags flags)
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+{
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+ if (ephy_reset.table[0].chip_label)
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+ return;
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+
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+ ephy_reset.table[0].chip_label = gpio_chip_labels[hw_gpio / 32];
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+ ephy_reset.table[0].chip_hwnum = hw_gpio % 32;
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+ ephy_reset.table[0].con_id = "ephy-reset";
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+ ephy_reset.table[0].flags = flags;
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+
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+ gpiod_add_lookup_table(&ephy_reset);
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+}
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--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h
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+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h
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@@ -2,9 +2,11 @@
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#define BCM63XX_GPIO_H
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#include <linux/init.h>
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+#include <linux/gpio/machine.h>
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#include <bcm63xx_cpu.h>
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int __init bcm63xx_gpio_init(void);
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+void bcm63xx_gpio_ephy_reset(int hw_gpio, enum gpio_lookup_flags flags);
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static inline unsigned long bcm63xx_gpio_count(void)
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{
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--- a/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
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+++ b/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
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@@ -3,6 +3,7 @@
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#include <linux/types.h>
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#include <linux/gpio.h>
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+#include <linux/gpio/machine.h>
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#include <linux/leds.h>
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#include <bcm63xx_dev_enet.h>
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#include <bcm63xx_dev_usb_usbd.h>
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@@ -54,8 +55,8 @@ struct board_info {
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/* External PHY reset GPIO */
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unsigned int ephy_reset_gpio;
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- /* External PHY reset GPIO flags from gpio.h */
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- unsigned long ephy_reset_gpio_flags;
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+ /* External PHY reset GPIO flags from gpio/machine.h */
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+ enum gpio_lookup_flags ephy_reset_gpio_flags;
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/* fallback sprom config */
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struct fallback_sprom_data fallback_sprom;
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