| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame] | 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 | #include <linux/gpio.h> |
| 15 | #include <linux/platform_device.h> |
| 16 | |
| 17 | #include <linux/i2c/tps65010.h> |
| 18 | |
| 19 | #include <plat/mmc.h> |
| 20 | |
| 21 | #include "board-h2.h" |
| 22 | |
| 23 | #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) |
| 24 | |
| 25 | static int mmc_set_power(struct device *dev, int slot, int power_on, |
| 26 | int vdd) |
| 27 | { |
| 28 | gpio_set_value(H2_TPS_GPIO_MMC_PWR_EN, power_on); |
| 29 | return 0; |
| 30 | } |
| 31 | |
| 32 | static int mmc_late_init(struct device *dev) |
| 33 | { |
| 34 | int ret = gpio_request(H2_TPS_GPIO_MMC_PWR_EN, "MMC power"); |
| 35 | if (ret < 0) |
| 36 | return ret; |
| 37 | |
| 38 | gpio_direction_output(H2_TPS_GPIO_MMC_PWR_EN, 0); |
| 39 | |
| 40 | return ret; |
| 41 | } |
| 42 | |
| 43 | static void mmc_cleanup(struct device *dev) |
| 44 | { |
| 45 | gpio_free(H2_TPS_GPIO_MMC_PWR_EN); |
| 46 | } |
| 47 | |
| 48 | /* |
| 49 | * H2 could use the following functions tested: |
| 50 | * - mmc_get_cover_state that uses OMAP_MPUIO(1) |
| 51 | * - mmc_get_wp that uses OMAP_MPUIO(3) |
| 52 | */ |
| 53 | static struct omap_mmc_platform_data mmc1_data = { |
| 54 | .nr_slots = 1, |
| 55 | .init = mmc_late_init, |
| 56 | .cleanup = mmc_cleanup, |
| 57 | .dma_mask = 0xffffffff, |
| 58 | .slots[0] = { |
| 59 | .set_power = mmc_set_power, |
| 60 | .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, |
| 61 | .name = "mmcblk", |
| 62 | }, |
| 63 | }; |
| 64 | |
| 65 | static struct omap_mmc_platform_data *mmc_data[OMAP16XX_NR_MMC]; |
| 66 | |
| 67 | void __init h2_mmc_init(void) |
| 68 | { |
| 69 | mmc_data[0] = &mmc1_data; |
| 70 | omap1_init_mmc(mmc_data, OMAP16XX_NR_MMC); |
| 71 | } |
| 72 | |
| 73 | #else |
| 74 | |
| 75 | void __init h2_mmc_init(void) |
| 76 | { |
| 77 | } |
| 78 | |
| 79 | #endif |