Merge branch 'master' of git://git.infradead.org/users/dedekind/mtd-tests-2.6
[linux-2.6] / arch / arm / mach-omap1 / board-sx1-mmc.c
1 /*
2  * linux/arch/arm/mach-omap1/board-sx1-mmc.c
3  *
4  * Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT
5  * Author: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br>
6  *
7  * This code is based on linux/arch/arm/mach-omap1/board-h2-mmc.c, which is:
8  * Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT
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 <mach/hardware.h>
18 #include <mach/mmc.h>
19 #include <mach/gpio.h>
20
21 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
22
23 static int mmc_set_power(struct device *dev, int slot, int power_on,
24                                 int vdd)
25 {
26         int err;
27         u8 dat = 0;
28
29         err = sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, &dat);
30         if (err < 0)
31                 return err;
32
33         if (power_on)
34                 dat |= SOFIA_MMC_POWER;
35         else
36                 dat &= ~SOFIA_MMC_POWER;
37
38         return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, dat);
39 }
40
41 /* Cover switch is at OMAP_MPUIO(3) */
42 static struct omap_mmc_platform_data mmc1_data = {
43         .nr_slots                       = 1,
44         .slots[0]       = {
45                 .set_power              = mmc_set_power,
46                 .ocr_mask               = MMC_VDD_28_29 | MMC_VDD_30_31 |
47                                           MMC_VDD_32_33 | MMC_VDD_33_34,
48                 .name                   = "mmcblk",
49         },
50 };
51
52 static struct omap_mmc_platform_data *mmc_data[OMAP15XX_NR_MMC];
53
54 void __init sx1_mmc_init(void)
55 {
56         mmc_data[0] = &mmc1_data;
57         omap1_init_mmc(mmc_data, OMAP15XX_NR_MMC);
58 }
59
60 #else
61
62 void __init sx1_mmc_init(void)
63 {
64 }
65
66 #endif