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Viewing changes to arch/arm/mach-kirkwood/lacie_v2-common.c

  • Committer: Package Import Robot
  • Author(s): Alessio Igor Bogani
  • Date: 2011-10-26 11:13:05 UTC
  • Revision ID: package-import@ubuntu.com-20111026111305-tz023xykf0i6eosh
Tags: upstream-3.2.0
Import upstream version 3.2.0

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