Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs...
[linux-2.6] / arch / arm / mach-omap1 / board-h2-mmc.c
1 /*
2  * linux/arch/arm/mach-omap1/board-h2-mmc.c
3  *
4  * Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT
5  * Author: Felipe Balbi <felipe.lima@indt.org.br>
6  *
7  * This code is based on linux/arch/arm/mach-omap2/board-n800-mmc.c, which is:
8  * Copyright (C) 2006 Nokia Corporation
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License version 2 as
12  * published by the Free Software Foundation.
13  */
14
15 #include <linux/platform_device.h>
16
17 #include <linux/i2c/tps65010.h>
18
19 #include <mach/mmc.h>
20 #include <mach/gpio.h>
21
22 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
23
24 static int mmc_set_power(struct device *dev, int slot, int power_on,
25                                 int vdd)
26 {
27         if (power_on)
28                 gpio_direction_output(H2_TPS_GPIO_MMC_PWR_EN, 1);
29         else
30                 gpio_direction_output(H2_TPS_GPIO_MMC_PWR_EN, 0);
31
32         return 0;
33 }
34
35 static int mmc_late_init(struct device *dev)
36 {
37         int ret;
38
39         ret = gpio_request(H2_TPS_GPIO_MMC_PWR_EN, "MMC power");
40         if (ret < 0)
41                 return ret;
42
43         gpio_direction_output(H2_TPS_GPIO_MMC_PWR_EN, 0);
44
45         return ret;
46 }
47
48 static void mmc_shutdown(struct device *dev)
49 {
50         gpio_free(H2_TPS_GPIO_MMC_PWR_EN);
51 }
52
53 /*
54  * H2 could use the following functions tested:
55  * - mmc_get_cover_state that uses OMAP_MPUIO(1)
56  * - mmc_get_wp that uses OMAP_MPUIO(3)
57  */
58 static struct omap_mmc_platform_data mmc1_data = {
59         .nr_slots                       = 1,
60         .init                           = mmc_late_init,
61         .shutdown                       = mmc_shutdown,
62         .dma_mask                       = 0xffffffff,
63         .slots[0]       = {
64                 .set_power              = mmc_set_power,
65                 .ocr_mask               = MMC_VDD_28_29 | MMC_VDD_30_31 |
66                                           MMC_VDD_32_33 | MMC_VDD_33_34,
67                 .name                   = "mmcblk",
68         },
69 };
70
71 static struct omap_mmc_platform_data *mmc_data[OMAP16XX_NR_MMC];
72
73 void __init h2_mmc_init(void)
74 {
75         mmc_data[0] = &mmc1_data;
76         omap1_init_mmc(mmc_data, OMAP16XX_NR_MMC);
77 }
78
79 #else
80
81 void __init h2_mmc_init(void)
82 {
83 }
84
85 #endif