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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/mbus.h>
#include <linux/mtd/physmap.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,
};
/*****************************************************************************
* 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,
};
/*****************************************************************************
* General Setup
****************************************************************************/
void __init edmini_v2_init(void)
{
/*
* Configure peripherals.
*/
orion5x_ehci0_init();
mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
ORION_MBUS_DEVBUS_BOOT_ATTR,
EDMINI_V2_NOR_BOOT_BASE,
EDMINI_V2_NOR_BOOT_SIZE);
platform_device_register(&edmini_v2_nor_flash);
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);
}
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