mirror of
https://github.com/torvalds/linux.git
synced 2024-12-27 05:11:48 +00:00
d3491820e8
Signed-off-by: Simon Guinot <sguinot@lacie.com> Acked-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
114 lines
2.9 KiB
C
114 lines
2.9 KiB
C
/*
|
|
* 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/i2c/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"
|
|
|
|
/*****************************************************************************
|
|
* 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);
|
|
}
|
|
}
|