262 lines
7.1 KiB
C
262 lines
7.1 KiB
C
/*
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* arch/arm/mach-orion5x/edmini_v2-setup.c
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*
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* LaCie Ethernet Disk mini V2 Setup
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*
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* Copyright (C) 2008 Christopher Moore <moore@free.fr>
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* Copyright (C) 2008 Albert Aribaud <albert.aribaud@free.fr>
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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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/*
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* TODO: add Orion USB device port init when kernel.org support is added.
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* TODO: add flash write support: see below.
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* TODO: add power-off support.
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* TODO: add I2C EEPROM support.
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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/irq.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 <linux/gpio.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/pci.h>
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#include <mach/orion5x.h>
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#include "common.h"
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#include "mpp.h"
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/*****************************************************************************
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* EDMINI_V2 Info
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****************************************************************************/
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/*
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* 512KB NOR flash Device bus boot chip select
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*/
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#define EDMINI_V2_NOR_BOOT_BASE 0xfff80000
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#define EDMINI_V2_NOR_BOOT_SIZE SZ_512K
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/*****************************************************************************
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* 512KB NOR Flash on BOOT Device
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****************************************************************************/
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/*
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* Currently the MTD code does not recognize the MX29LV400CBCT as a bottom
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* -type device. This could cause risks of accidentally erasing critical
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* flash sectors. We thus define a single, write-protected partition covering
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* the whole flash.
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* TODO: once the flash part TOP/BOTTOM detection issue is sorted out in the MTD
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* code, break this into at least three partitions: 'u-boot code', 'u-boot
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* environment' and 'whatever is left'.
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*/
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static struct mtd_partition edmini_v2_partitions[] = {
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{
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.name = "Full512kb",
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.size = 0x00080000,
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.offset = 0x00000000,
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.mask_flags = MTD_WRITEABLE,
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},
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};
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static struct physmap_flash_data edmini_v2_nor_flash_data = {
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.width = 1,
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.parts = edmini_v2_partitions,
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.nr_parts = ARRAY_SIZE(edmini_v2_partitions),
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};
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static struct resource edmini_v2_nor_flash_resource = {
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.flags = IORESOURCE_MEM,
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.start = EDMINI_V2_NOR_BOOT_BASE,
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.end = EDMINI_V2_NOR_BOOT_BASE
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+ EDMINI_V2_NOR_BOOT_SIZE - 1,
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};
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static struct platform_device edmini_v2_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 = &edmini_v2_nor_flash_data,
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},
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.num_resources = 1,
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.resource = &edmini_v2_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 edmini_v2_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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#define EDMINIV2_RTC_GPIO 3
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static struct i2c_board_info __initdata edmini_v2_i2c_rtc = {
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I2C_BOARD_INFO("rs5c372a", 0x32),
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.irq = 0,
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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 edmini_v2_sata_data = {
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.n_ports = 2,
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};
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/*****************************************************************************
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* GPIO LED (simple - doesn't use hardware blinking support)
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****************************************************************************/
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#define EDMINI_V2_GPIO_LED_POWER 16
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static struct gpio_led edmini_v2_leds[] = {
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{
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.name = "power:blue",
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.gpio = EDMINI_V2_GPIO_LED_POWER,
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.active_low = 1,
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},
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};
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static struct gpio_led_platform_data edmini_v2_led_data = {
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.num_leds = ARRAY_SIZE(edmini_v2_leds),
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.leds = edmini_v2_leds,
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};
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static struct platform_device edmini_v2_gpio_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 = &edmini_v2_led_data,
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},
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};
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/****************************************************************************
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* GPIO key
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****************************************************************************/
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#define EDMINI_V2_GPIO_KEY_POWER 18
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static struct gpio_keys_button edmini_v2_buttons[] = {
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{
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.code = KEY_POWER,
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.gpio = EDMINI_V2_GPIO_KEY_POWER,
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.desc = "Power Button",
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.active_low = 0,
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},
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};
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static struct gpio_keys_platform_data edmini_v2_button_data = {
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.buttons = edmini_v2_buttons,
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.nbuttons = ARRAY_SIZE(edmini_v2_buttons),
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};
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static struct platform_device edmini_v2_gpio_buttons = {
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.name = "gpio-keys",
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.id = -1,
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.dev = {
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.platform_data = &edmini_v2_button_data,
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},
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};
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/*****************************************************************************
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* General Setup
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****************************************************************************/
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static unsigned int edminiv2_mpp_modes[] __initdata = {
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MPP0_UNUSED,
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MPP1_UNUSED,
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MPP2_UNUSED,
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MPP3_GPIO, /* RTC interrupt */
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MPP4_UNUSED,
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MPP5_UNUSED,
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MPP6_UNUSED,
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MPP7_UNUSED,
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MPP8_UNUSED,
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MPP9_UNUSED,
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MPP10_UNUSED,
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MPP11_UNUSED,
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MPP12_SATA_LED, /* SATA 0 presence */
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MPP13_SATA_LED, /* SATA 1 presence */
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MPP14_SATA_LED, /* SATA 0 active */
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MPP15_SATA_LED, /* SATA 1 active */
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/* 16: Power LED control (0 = On, 1 = Off) */
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MPP16_GPIO,
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/* 17: Power LED control select (0 = CPLD, 1 = GPIO16) */
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MPP17_GPIO,
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/* 18: Power button status (0 = Released, 1 = Pressed) */
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MPP18_GPIO,
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MPP19_UNUSED,
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0,
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};
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static void __init edmini_v2_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(edminiv2_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_eth_init(&edmini_v2_eth_data);
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orion5x_i2c_init();
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orion5x_sata_init(&edmini_v2_sata_data);
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orion5x_uart0_init();
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orion5x_setup_dev_boot_win(EDMINI_V2_NOR_BOOT_BASE,
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EDMINI_V2_NOR_BOOT_SIZE);
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platform_device_register(&edmini_v2_nor_flash);
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platform_device_register(&edmini_v2_gpio_leds);
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platform_device_register(&edmini_v2_gpio_buttons);
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pr_notice("edmini_v2: USB device port, flash write and power-off "
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"are not yet supported.\n");
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/* Get RTC IRQ and register the chip */
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if (gpio_request(EDMINIV2_RTC_GPIO, "rtc") == 0) {
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if (gpio_direction_input(EDMINIV2_RTC_GPIO) == 0)
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edmini_v2_i2c_rtc.irq = gpio_to_irq(EDMINIV2_RTC_GPIO);
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else
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gpio_free(EDMINIV2_RTC_GPIO);
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}
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if (edmini_v2_i2c_rtc.irq == 0)
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pr_warning("edmini_v2: failed to get RTC IRQ\n");
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i2c_register_board_info(0, &edmini_v2_i2c_rtc, 1);
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}
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/* Warning: LaCie use a wrong mach-type (0x20e=526) in their bootloader. */
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MACHINE_START(EDMINI_V2, "LaCie Ethernet Disk mini V2")
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/* Maintainer: Christopher Moore <moore@free.fr> */
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.atag_offset = 0x100,
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.init_machine = edmini_v2_init,
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.map_io = orion5x_map_io,
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.init_early = orion5x_init_early,
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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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