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92a5de80e5
This patch adds specific power-off method for Buffalo Linkstation Mini board. The board has a hardware switch which should be monitored from userspace. When the switch is in OFF position the board should be rebooted and U-Boot will start in an idle mode and wait for the user to move the power switch back to ON position. Signed-off-by: Alexey Kopytko <alexey@kopytko.ru> Signed-off-by: Nicolas Pitre <nico@marvell.com>
280 lines
7.3 KiB
C
280 lines
7.3 KiB
C
/*
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* arch/arm/mach-orion5x/lsmini-setup.c
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*
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* Maintainer: Alexey Kopytko <alexey@kopytko.ru>
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/pci.h>
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#include <linux/mtd/physmap.h>
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#include <linux/mv643xx_eth.h>
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#include <linux/leds.h>
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#include <linux/gpio_keys.h>
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#include <linux/input.h>
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#include <linux/i2c.h>
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#include <linux/ata_platform.h>
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#include <asm/mach-types.h>
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#include <linux/gpio.h>
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#include <asm/mach/arch.h>
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#include "common.h"
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#include "mpp.h"
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#include "include/mach/system.h"
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/*****************************************************************************
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* Linkstation Mini Info
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****************************************************************************/
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/*
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* 256K NOR flash Device bus boot chip select
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*/
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#define LSMINI_NOR_BOOT_BASE 0xf4000000
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#define LSMINI_NOR_BOOT_SIZE SZ_256K
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/*****************************************************************************
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* 256KB NOR Flash on BOOT Device
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****************************************************************************/
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static struct physmap_flash_data lsmini_nor_flash_data = {
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.width = 1,
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};
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static struct resource lsmini_nor_flash_resource = {
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.flags = IORESOURCE_MEM,
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.start = LSMINI_NOR_BOOT_BASE,
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.end = LSMINI_NOR_BOOT_BASE + LSMINI_NOR_BOOT_SIZE - 1,
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};
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static struct platform_device lsmini_nor_flash = {
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.name = "physmap-flash",
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.id = 0,
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.dev = {
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.platform_data = &lsmini_nor_flash_data,
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},
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.num_resources = 1,
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.resource = &lsmini_nor_flash_resource,
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};
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/*****************************************************************************
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* Ethernet
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****************************************************************************/
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static struct mv643xx_eth_platform_data lsmini_eth_data = {
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.phy_addr = 8,
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};
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/*****************************************************************************
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* RTC 5C372a on I2C bus
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****************************************************************************/
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static struct i2c_board_info __initdata lsmini_i2c_rtc = {
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I2C_BOARD_INFO("rs5c372a", 0x32),
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};
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/*****************************************************************************
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* LEDs attached to GPIO
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****************************************************************************/
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#define LSMINI_GPIO_LED_ALARM 2
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#define LSMINI_GPIO_LED_INFO 3
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#define LSMINI_GPIO_LED_FUNC 9
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#define LSMINI_GPIO_LED_PWR 14
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static struct gpio_led lsmini_led_pins[] = {
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{
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.name = "alarm:red",
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.gpio = LSMINI_GPIO_LED_ALARM,
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.active_low = 1,
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}, {
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.name = "info:amber",
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.gpio = LSMINI_GPIO_LED_INFO,
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.active_low = 1,
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}, {
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.name = "func:blue:top",
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.gpio = LSMINI_GPIO_LED_FUNC,
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.active_low = 1,
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}, {
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.name = "power:blue:bottom",
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.gpio = LSMINI_GPIO_LED_PWR,
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},
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};
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static struct gpio_led_platform_data lsmini_led_data = {
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.leds = lsmini_led_pins,
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.num_leds = ARRAY_SIZE(lsmini_led_pins),
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};
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static struct platform_device lsmini_leds = {
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.name = "leds-gpio",
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.id = -1,
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.dev = {
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.platform_data = &lsmini_led_data,
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},
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};
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/****************************************************************************
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* GPIO Attached Keys
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****************************************************************************/
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#define LSMINI_GPIO_KEY_FUNC 15
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#define LSMINI_GPIO_KEY_POWER 18
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#define LSMINI_GPIO_KEY_AUTOPOWER 17
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#define LSMINI_SW_POWER 0x00
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#define LSMINI_SW_AUTOPOWER 0x01
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static struct gpio_keys_button lsmini_buttons[] = {
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{
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.code = KEY_OPTION,
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.gpio = LSMINI_GPIO_KEY_FUNC,
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.desc = "Function Button",
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.active_low = 1,
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}, {
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.type = EV_SW,
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.code = LSMINI_SW_POWER,
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.gpio = LSMINI_GPIO_KEY_POWER,
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.desc = "Power-on Switch",
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.active_low = 1,
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}, {
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.type = EV_SW,
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.code = LSMINI_SW_AUTOPOWER,
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.gpio = LSMINI_GPIO_KEY_AUTOPOWER,
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.desc = "Power-auto Switch",
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.active_low = 1,
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},
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};
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static struct gpio_keys_platform_data lsmini_button_data = {
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.buttons = lsmini_buttons,
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.nbuttons = ARRAY_SIZE(lsmini_buttons),
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};
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static struct platform_device lsmini_button_device = {
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.name = "gpio-keys",
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.id = -1,
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.num_resources = 0,
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.dev = {
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.platform_data = &lsmini_button_data,
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},
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};
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/*****************************************************************************
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* SATA
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****************************************************************************/
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static struct mv_sata_platform_data lsmini_sata_data = {
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.n_ports = 2,
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};
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/*****************************************************************************
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* Linkstation Mini specific power off method: reboot
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****************************************************************************/
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/*
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* On the Linkstation Mini, the shutdown process is following:
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* - Userland monitors key events until the power switch goes to off position
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* - The board reboots
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* - U-boot starts and goes into an idle mode waiting for the user
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* to move the switch to ON position
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*/
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static void lsmini_power_off(void)
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{
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arch_reset(0);
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}
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/*****************************************************************************
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* General Setup
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****************************************************************************/
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#define LSMINI_GPIO_USB_POWER 16
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#define LSMINI_GPIO_AUTO_POWER 17
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#define LSMINI_GPIO_POWER 18
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#define LSMINI_GPIO_HDD_POWER0 1
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#define LSMINI_GPIO_HDD_POWER1 19
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static struct orion5x_mpp_mode lsmini_mpp_modes[] __initdata = {
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{ 0, MPP_UNUSED }, /* LED_RESERVE1 (unused) */
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{ 1, MPP_GPIO }, /* HDD_PWR */
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{ 2, MPP_GPIO }, /* LED_ALARM */
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{ 3, MPP_GPIO }, /* LED_INFO */
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{ 4, MPP_UNUSED },
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{ 5, MPP_UNUSED },
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{ 6, MPP_UNUSED },
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{ 7, MPP_UNUSED },
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{ 8, MPP_UNUSED },
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{ 9, MPP_GPIO }, /* LED_FUNC */
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{ 10, MPP_UNUSED },
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{ 11, MPP_UNUSED }, /* LED_ETH (dummy) */
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{ 12, MPP_UNUSED },
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{ 13, MPP_UNUSED },
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{ 14, MPP_GPIO }, /* LED_PWR */
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{ 15, MPP_GPIO }, /* FUNC */
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{ 16, MPP_GPIO }, /* USB_PWR */
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{ 17, MPP_GPIO }, /* AUTO_POWER */
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{ 18, MPP_GPIO }, /* POWER */
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{ 19, MPP_GPIO }, /* HDD_PWR1 */
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{ -1 },
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};
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static void __init lsmini_init(void)
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{
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/*
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* Setup basic Orion functions. Need to be called early.
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*/
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orion5x_init();
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orion5x_mpp_conf(lsmini_mpp_modes);
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/*
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* Configure peripherals.
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*/
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orion5x_ehci0_init();
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orion5x_ehci1_init();
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orion5x_eth_init(&lsmini_eth_data);
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orion5x_i2c_init();
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orion5x_sata_init(&lsmini_sata_data);
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orion5x_uart0_init();
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orion5x_xor_init();
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orion5x_setup_dev_boot_win(LSMINI_NOR_BOOT_BASE,
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LSMINI_NOR_BOOT_SIZE);
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platform_device_register(&lsmini_nor_flash);
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platform_device_register(&lsmini_button_device);
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platform_device_register(&lsmini_leds);
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i2c_register_board_info(0, &lsmini_i2c_rtc, 1);
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/* enable USB power */
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gpio_set_value(LSMINI_GPIO_USB_POWER, 1);
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/* register power-off method */
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pm_power_off = lsmini_power_off;
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pr_info("%s: finished\n", __func__);
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}
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#ifdef CONFIG_MACH_LINKSTATION_MINI
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MACHINE_START(LINKSTATION_MINI, "Buffalo Linkstation Mini")
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/* Maintainer: Alexey Kopytko <alexey@kopytko.ru> */
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.phys_io = ORION5X_REGS_PHYS_BASE,
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.io_pg_offst = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
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.boot_params = 0x00000100,
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.init_machine = lsmini_init,
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.map_io = orion5x_map_io,
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.init_irq = orion5x_init_irq,
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.timer = &orion5x_timer,
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.fixup = tag_fixup_mem32,
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MACHINE_END
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#endif
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