projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
| Commit | Line | Data |
|---|---|---|
| 087c5030 CEA |
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 | ||
| a09e64fb RK |
15 | #include <mach/hardware.h> |
| 16 | #include <mach/mmc.h> | |
| 17 | #include <mach/gpio.h> | |
| 087c5030 CEA |
18 | |
| 19 | #ifdef CONFIG_MMC_OMAP | |
| 20 | static int slot_cover_open; | |
| 21 | static struct device *mmc_device; | |
| 22 | ||
| 23 | static int sx1_mmc_set_power(struct device *dev, int slot, int power_on, | |
| 24 | int vdd) | |
| 25 | { | |
| 26 | int err; | |
| 27 | u8 dat = 0; | |
| 28 | ||
| 29 | #ifdef CONFIG_MMC_DEBUG | |
| 30 | dev_dbg(dev, "Set slot %d power: %s (vdd %d)\n", slot + 1, | |
| 31 | power_on ? "on" : "off", vdd); | |
| 32 | #endif | |
| 33 | ||
| 34 | if (slot != 0) { | |
| 35 | dev_err(dev, "No such slot %d\n", slot + 1); | |
| 36 | return -ENODEV; | |
| 37 | } | |
| 38 | ||
| 39 | err = sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, &dat); | |
| 40 | if (err < 0) | |
| 41 | return err; | |
| 42 | ||
| 43 | if (power_on) | |
| 44 | dat |= SOFIA_MMC_POWER; | |
| 45 | else | |
| 46 | dat &= ~SOFIA_MMC_POWER; | |
| 47 | ||
| 48 | return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, dat); | |
| 49 | } | |
| 50 | ||
| 51 | static int sx1_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode) | |
| 52 | { | |
| 53 | #ifdef CONFIG_MMC_DEBUG | |
| 54 | dev_dbg(dev, "Set slot %d bus_mode %s\n", slot + 1, | |
| 55 | bus_mode == MMC_BUSMODE_OPENDRAIN ? "open-drain" : "push-pull"); | |
| 56 | #endif | |
| 57 | if (slot != 0) { | |
| 58 | dev_err(dev, "No such slot %d\n", slot + 1); | |
| 59 | return -ENODEV; | |
| 60 | } | |
| 61 | ||
| 62 | return 0; | |
| 63 | } | |
| 64 | ||
| 65 | static int sx1_mmc_get_cover_state(struct device *dev, int slot) | |
| 66 | { | |
| 67 | BUG_ON(slot != 0); | |
| 68 | ||
| 69 | return slot_cover_open; | |
| 70 | } | |
| 71 | ||
| 72 | void sx1_mmc_slot_cover_handler(void *arg, int state) | |
| 73 | { | |
| 74 | if (mmc_device == NULL) | |
| 75 | return; | |
| 76 | ||
| 77 | slot_cover_open = state; | |
| 78 | omap_mmc_notify_cover_event(mmc_device, 0, state); | |
| 79 | } | |
| 80 | ||
| 81 | static int sx1_mmc_late_init(struct device *dev) | |
| 82 | { | |
| 83 | int ret = 0; | |
| 84 | ||
| 85 | mmc_device = dev; | |
| 86 | ||
| 87 | return ret; | |
| 88 | } | |
| 89 | ||
| 90 | static void sx1_mmc_cleanup(struct device *dev) | |
| 91 | { | |
| 92 | } | |
| 93 | ||
| 94 | static struct omap_mmc_platform_data sx1_mmc_data = { | |
| 95 | .nr_slots = 1, | |
| 96 | .switch_slot = NULL, | |
| 97 | .init = sx1_mmc_late_init, | |
| 98 | .cleanup = sx1_mmc_cleanup, | |
| 99 | .slots[0] = { | |
| 100 | .set_power = sx1_mmc_set_power, | |
| 101 | .set_bus_mode = sx1_mmc_set_bus_mode, | |
| 102 | .get_ro = NULL, | |
| 103 | .get_cover_state = sx1_mmc_get_cover_state, | |
| 104 | .ocr_mask = MMC_VDD_28_29 | MMC_VDD_30_31 | | |
| 105 | MMC_VDD_32_33 | MMC_VDD_33_34, | |
| 106 | .name = "mmcblk", | |
| 107 | }, | |
| 108 | }; | |
| 109 | ||
| 110 | void __init sx1_mmc_init(void) | |
| 111 | { | |
| 112 | omap_set_mmc_info(1, &sx1_mmc_data); | |
| 113 | } | |
| 114 | ||
| 115 | #else | |
| 116 | ||
| 117 | void __init sx1_mmc_init(void) | |
| 118 | { | |
| 119 | } | |
| 120 | ||
| 121 | void sx1_mmc_slot_cover_handler(void *arg, int state) | |
| 122 | { | |
| 123 | } | |
| 124 | #endif |