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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 | } |