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/*
* arch/arm/mach-kirkwood/lacie_v2-common.c
*
* 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.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/mtd/physmap.h>
#include <linux/spi/flash.h>
#include <linux/spi/spi.h>
#include <linux/i2c.h>
#include <linux/platform_data/at24.h>
#include <linux/gpio.h>
#include <asm/mach/time.h>
#include <mach/kirkwood.h>
#include <mach/irqs.h>
#include <plat/time.h>
#include "common.h"
#include "lacie_v2-common.h"
/*****************************************************************************
* 512KB SPI Flash on Boot Device (MACRONIX MX25L4005)
****************************************************************************/
static struct mtd_partition lacie_v2_flash_parts[] = {
{
.name = "u-boot",
.size = MTDPART_SIZ_FULL,
.offset = 0,
.mask_flags = MTD_WRITEABLE, /* force read-only */
},
};
static const struct flash_platform_data lacie_v2_flash = {
.type = "mx25l4005a",
.name = "spi_flash",
.parts = lacie_v2_flash_parts,
.nr_parts = ARRAY_SIZE(lacie_v2_flash_parts),
};
static struct spi_board_info __initdata lacie_v2_spi_slave_info[] = {
{
.modalias = "m25p80",
.platform_data = &lacie_v2_flash,
.irq = -1,
.max_speed_hz = 20000000,
.bus_num = 0,
.chip_select = 0,
},
};
void __init lacie_v2_register_flash(void)
{
spi_register_board_info(lacie_v2_spi_slave_info,
ARRAY_SIZE(lacie_v2_spi_slave_info));
kirkwood_spi_init();
}
/*****************************************************************************
* I2C devices
****************************************************************************/
static struct at24_platform_data at24c04 = {
.byte_len = SZ_4K / 8,
.page_size = 16,
};
/*
* i2c addr | chip | description
* 0x50 | HT24LC04 | eeprom (512B)
*/
static struct i2c_board_info __initdata lacie_v2_i2c_info[] = {
{
I2C_BOARD_INFO("24c04", 0x50),
.platform_data = &at24c04,
}
};
void __init lacie_v2_register_i2c_devices(void)
{
kirkwood_i2c_init();
i2c_register_board_info(0, lacie_v2_i2c_info,
ARRAY_SIZE(lacie_v2_i2c_info));
}
/*****************************************************************************
* Hard Disk power
****************************************************************************/
static int __initdata lacie_v2_gpio_hdd_power[] = { 16, 17, 41, 42, 43 };
void __init lacie_v2_hdd_power_init(int hdd_num)
{
int i;
int err;
/* Power up all hard disks. */
for (i = 0; i < hdd_num; i++) {
err = gpio_request(lacie_v2_gpio_hdd_power[i], NULL);
if (err == 0) {
err = gpio_direction_output(
lacie_v2_gpio_hdd_power[i], 1);
/* Free the HDD power GPIOs. This allow user-space to
* configure them via the gpiolib sysfs interface. */
gpio_free(lacie_v2_gpio_hdd_power[i]);
}
if (err)
pr_err("Failed to power up HDD%d\n", i + 1);
}
}
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