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linux-sg2042/arch/arm/mach-orion5x/edmini_v2-setup.c

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/*
* arch/arm/mach-orion5x/edmini_v2-setup.c
*
* LaCie Ethernet Disk mini V2 Setup
*
* Copyright (C) 2008 Christopher Moore <moore@free.fr>
* Copyright (C) 2008 Albert Aribaud <albert.aribaud@free.fr>
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
/*
* TODO: add Orion USB device port init when kernel.org support is added.
* TODO: add flash write support: see below.
* TODO: add power-off support.
* TODO: add I2C EEPROM support.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/pci.h>
#include <linux/irq.h>
#include <linux/mtd/physmap.h>
#include <linux/mv643xx_eth.h>
#include <linux/leds.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/i2c.h>
#include <linux/ata_platform.h>
#include <linux/gpio.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/pci.h>
#include <mach/orion5x.h>
#include "common.h"
#include "mpp.h"
/*****************************************************************************
* EDMINI_V2 Info
****************************************************************************/
/*
* 512KB NOR flash Device bus boot chip select
*/
#define EDMINI_V2_NOR_BOOT_BASE 0xfff80000
#define EDMINI_V2_NOR_BOOT_SIZE SZ_512K
/*****************************************************************************
* 512KB NOR Flash on BOOT Device
****************************************************************************/
/*
* Currently the MTD code does not recognize the MX29LV400CBCT as a bottom
* -type device. This could cause risks of accidentally erasing critical
* flash sectors. We thus define a single, write-protected partition covering
* the whole flash.
* TODO: once the flash part TOP/BOTTOM detection issue is sorted out in the MTD
* code, break this into at least three partitions: 'u-boot code', 'u-boot
* environment' and 'whatever is left'.
*/
static struct mtd_partition edmini_v2_partitions[] = {
{
.name = "Full512kb",
.size = 0x00080000,
.offset = 0x00000000,
.mask_flags = MTD_WRITEABLE,
},
};
static struct physmap_flash_data edmini_v2_nor_flash_data = {
.width = 1,
.parts = edmini_v2_partitions,
.nr_parts = ARRAY_SIZE(edmini_v2_partitions),
};
static struct resource edmini_v2_nor_flash_resource = {
.flags = IORESOURCE_MEM,
.start = EDMINI_V2_NOR_BOOT_BASE,
.end = EDMINI_V2_NOR_BOOT_BASE
+ EDMINI_V2_NOR_BOOT_SIZE - 1,
};
static struct platform_device edmini_v2_nor_flash = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &edmini_v2_nor_flash_data,
},
.num_resources = 1,
.resource = &edmini_v2_nor_flash_resource,
};
/*****************************************************************************
* Ethernet
****************************************************************************/
static struct mv643xx_eth_platform_data edmini_v2_eth_data = {
.phy_addr = 8,
};
/*****************************************************************************
* RTC 5C372a on I2C bus
****************************************************************************/
#define EDMINIV2_RTC_GPIO 3
static struct i2c_board_info __initdata edmini_v2_i2c_rtc = {
I2C_BOARD_INFO("rs5c372a", 0x32),
.irq = 0,
};
/*****************************************************************************
* Sata
****************************************************************************/
static struct mv_sata_platform_data edmini_v2_sata_data = {
.n_ports = 2,
};
/*****************************************************************************
* GPIO LED (simple - doesn't use hardware blinking support)
****************************************************************************/
#define EDMINI_V2_GPIO_LED_POWER 16
static struct gpio_led edmini_v2_leds[] = {
{
.name = "power:blue",
.gpio = EDMINI_V2_GPIO_LED_POWER,
.active_low = 1,
},
};
static struct gpio_led_platform_data edmini_v2_led_data = {
.num_leds = ARRAY_SIZE(edmini_v2_leds),
.leds = edmini_v2_leds,
};
static struct platform_device edmini_v2_gpio_leds = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &edmini_v2_led_data,
},
};
/****************************************************************************
* GPIO key
****************************************************************************/
#define EDMINI_V2_GPIO_KEY_POWER 18
static struct gpio_keys_button edmini_v2_buttons[] = {
{
.code = KEY_POWER,
.gpio = EDMINI_V2_GPIO_KEY_POWER,
.desc = "Power Button",
.active_low = 0,
},
};
static struct gpio_keys_platform_data edmini_v2_button_data = {
.buttons = edmini_v2_buttons,
.nbuttons = ARRAY_SIZE(edmini_v2_buttons),
};
static struct platform_device edmini_v2_gpio_buttons = {
.name = "gpio-keys",
.id = -1,
.dev = {
.platform_data = &edmini_v2_button_data,
},
};
/*****************************************************************************
* General Setup
****************************************************************************/
static struct orion5x_mpp_mode edminiv2_mpp_modes[] __initdata = {
{ 0, MPP_UNUSED },
{ 1, MPP_UNUSED },
{ 2, MPP_UNUSED },
{ 3, MPP_GPIO }, /* RTC interrupt */
{ 4, MPP_UNUSED },
{ 5, MPP_UNUSED },
{ 6, MPP_UNUSED },
{ 7, MPP_UNUSED },
{ 8, MPP_UNUSED },
{ 9, MPP_UNUSED },
{ 10, MPP_UNUSED },
{ 11, MPP_UNUSED },
{ 12, MPP_SATA_LED }, /* SATA 0 presence */
{ 13, MPP_SATA_LED }, /* SATA 1 presence */
{ 14, MPP_SATA_LED }, /* SATA 0 active */
{ 15, MPP_SATA_LED }, /* SATA 1 active */
/* 16: Power LED control (0 = On, 1 = Off) */
{ 16, MPP_GPIO },
/* 17: Power LED control select (0 = CPLD, 1 = GPIO16) */
{ 17, MPP_GPIO },
/* 18: Power button status (0 = Released, 1 = Pressed) */
{ 18, MPP_GPIO },
{ 19, MPP_UNUSED },
{ -1 }
};
static void __init edmini_v2_init(void)
{
/*
* Setup basic Orion functions. Need to be called early.
*/
orion5x_init();
orion5x_mpp_conf(edminiv2_mpp_modes);
/*
* Configure peripherals.
*/
orion5x_ehci0_init();
orion5x_eth_init(&edmini_v2_eth_data);
orion5x_i2c_init();
orion5x_sata_init(&edmini_v2_sata_data);
orion5x_uart0_init();
orion5x_setup_dev_boot_win(EDMINI_V2_NOR_BOOT_BASE,
EDMINI_V2_NOR_BOOT_SIZE);
platform_device_register(&edmini_v2_nor_flash);
platform_device_register(&edmini_v2_gpio_leds);
platform_device_register(&edmini_v2_gpio_buttons);
pr_notice("edmini_v2: USB device port, flash write and power-off "
"are not yet supported.\n");
/* Get RTC IRQ and register the chip */
if (gpio_request(EDMINIV2_RTC_GPIO, "rtc") == 0) {
if (gpio_direction_input(EDMINIV2_RTC_GPIO) == 0)
edmini_v2_i2c_rtc.irq = gpio_to_irq(EDMINIV2_RTC_GPIO);
else
gpio_free(EDMINIV2_RTC_GPIO);
}
if (edmini_v2_i2c_rtc.irq == 0)
pr_warning("edmini_v2: failed to get RTC IRQ\n");
i2c_register_board_info(0, &edmini_v2_i2c_rtc, 1);
}
/* Warning: LaCie use a wrong mach-type (0x20e=526) in their bootloader. */
MACHINE_START(EDMINI_V2, "LaCie Ethernet Disk mini V2")
/* Maintainer: Christopher Moore <moore@free.fr> */
.boot_params = 0x00000100,
.init_machine = edmini_v2_init,
.map_io = orion5x_map_io,
.init_early = orion5x_init_early,
.init_irq = orion5x_init_irq,
.timer = &orion5x_timer,
.fixup = tag_fixup_mem32,
MACHINE_END
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