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
mmc_set_power(struct device * dev,int slot,int power_on,int vdd)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
mmc_late_init(struct device * dev)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
mmc_shutdown(struct device * dev)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
h2_mmc_init(void)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
h2_mmc_init(void)81 void __init h2_mmc_init(void)
82 {
83 }
84
85 #endif
86