projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| b51d92da SG |
1 | /* |
| 2 | * arch/arm/mach-kirkwood/lacie_v2-common.c | |
| 3 | * | |
| 4 | * This file is licensed under the terms of the GNU General Public | |
| 5 | * License version 2. This program is licensed "as is" without any | |
| 6 | * warranty of any kind, whether express or implied. | |
| 7 | */ | |
| 8 | ||
| 9 | #include <linux/kernel.h> | |
| 10 | #include <linux/init.h> | |
| 11 | #include <linux/mtd/physmap.h> | |
| 12 | #include <linux/spi/flash.h> | |
| 13 | #include <linux/spi/spi.h> | |
| 14 | #include <linux/i2c.h> | |
| 25f73ed5 | 15 | #include <linux/platform_data/at24.h> |
| b51d92da SG |
16 | #include <linux/gpio.h> |
| 17 | #include <asm/mach/time.h> | |
| 18 | #include <mach/kirkwood.h> | |
| 19 | #include <mach/irqs.h> | |
| 20 | #include <plat/time.h> | |
| 21 | #include "common.h" | |
| d1c925b2 | 22 | #include "lacie_v2-common.h" |
| b51d92da SG |
23 | |
| 24 | /***************************************************************************** | |
| 25 | * 512KB SPI Flash on Boot Device (MACRONIX MX25L4005) | |
| 26 | ****************************************************************************/ | |
| 27 | ||
| 28 | static struct mtd_partition lacie_v2_flash_parts[] = { | |
| 29 | { | |
| 30 | .name = "u-boot", | |
| 31 | .size = MTDPART_SIZ_FULL, | |
| 32 | .offset = 0, | |
| 33 | .mask_flags = MTD_WRITEABLE, /* force read-only */ | |
| 34 | }, | |
| 35 | }; | |
| 36 | ||
| 37 | static const struct flash_platform_data lacie_v2_flash = { | |
| 38 | .type = "mx25l4005a", | |
| 39 | .name = "spi_flash", | |
| 40 | .parts = lacie_v2_flash_parts, | |
| 41 | .nr_parts = ARRAY_SIZE(lacie_v2_flash_parts), | |
| 42 | }; | |
| 43 | ||
| 44 | static struct spi_board_info __initdata lacie_v2_spi_slave_info[] = { | |
| 45 | { | |
| 46 | .modalias = "m25p80", | |
| 47 | .platform_data = &lacie_v2_flash, | |
| 48 | .irq = -1, | |
| 49 | .max_speed_hz = 20000000, | |
| 50 | .bus_num = 0, | |
| 51 | .chip_select = 0, | |
| 52 | }, | |
| 53 | }; | |
| 54 | ||
| 55 | void __init lacie_v2_register_flash(void) | |
| 56 | { | |
| 57 | spi_register_board_info(lacie_v2_spi_slave_info, | |
| 58 | ARRAY_SIZE(lacie_v2_spi_slave_info)); | |
| 59 | kirkwood_spi_init(); | |
| 60 | } | |
| 61 | ||
| 62 | /***************************************************************************** | |
| 63 | * I2C devices | |
| 64 | ****************************************************************************/ | |
| 65 | ||
| 66 | static struct at24_platform_data at24c04 = { | |
| 67 | .byte_len = SZ_4K / 8, | |
| 68 | .page_size = 16, | |
| 69 | }; | |
| 70 | ||
| 71 | /* | |
| 72 | * i2c addr | chip | description | |
| 73 | * 0x50 | HT24LC04 | eeprom (512B) | |
| 74 | */ | |
| 75 | ||
| 76 | static struct i2c_board_info __initdata lacie_v2_i2c_info[] = { | |
| 77 | { | |
| 78 | I2C_BOARD_INFO("24c04", 0x50), | |
| 79 | .platform_data = &at24c04, | |
| 80 | } | |
| 81 | }; | |
| 82 | ||
| 83 | void __init lacie_v2_register_i2c_devices(void) | |
| 84 | { | |
| 85 | kirkwood_i2c_init(); | |
| 86 | i2c_register_board_info(0, lacie_v2_i2c_info, | |
| 87 | ARRAY_SIZE(lacie_v2_i2c_info)); | |
| 88 | } | |
| 89 | ||
| 90 | /***************************************************************************** | |
| 91 | * Hard Disk power | |
| 92 | ****************************************************************************/ | |
| 93 | ||
| 94 | static int __initdata lacie_v2_gpio_hdd_power[] = { 16, 17, 41, 42, 43 }; | |
| 95 | ||
| 96 | void __init lacie_v2_hdd_power_init(int hdd_num) | |
| 97 | { | |
| 98 | int i; | |
| 99 | int err; | |
| 100 | ||
| 101 | /* Power up all hard disks. */ | |
| 102 | for (i = 0; i < hdd_num; i++) { | |
| 103 | err = gpio_request(lacie_v2_gpio_hdd_power[i], NULL); | |
| 104 | if (err == 0) { | |
| 105 | err = gpio_direction_output( | |
| 106 | lacie_v2_gpio_hdd_power[i], 1); | |
| 107 | /* Free the HDD power GPIOs. This allow user-space to | |
| 108 | * configure them via the gpiolib sysfs interface. */ | |
| 109 | gpio_free(lacie_v2_gpio_hdd_power[i]); | |
| 110 | } | |
| 111 | if (err) | |
| 112 | pr_err("Failed to power up HDD%d\n", i + 1); | |
| 113 | } | |
| 114 | } |