| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame^] | 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/gpio.h> |
| 16 | #include <linux/platform_device.h> |
| 17 | |
| 18 | #include <mach/hardware.h> |
| 19 | #include <plat/mmc.h> |
| 20 | #include <plat/board-sx1.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 | int err; |
| 28 | u8 dat = 0; |
| 29 | |
| 30 | err = sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, &dat); |
| 31 | if (err < 0) |
| 32 | return err; |
| 33 | |
| 34 | if (power_on) |
| 35 | dat |= SOFIA_MMC_POWER; |
| 36 | else |
| 37 | dat &= ~SOFIA_MMC_POWER; |
| 38 | |
| 39 | return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, dat); |
| 40 | } |
| 41 | |
| 42 | /* Cover switch is at OMAP_MPUIO(3) */ |
| 43 | static struct omap_mmc_platform_data mmc1_data = { |
| 44 | .nr_slots = 1, |
| 45 | .slots[0] = { |
| 46 | .set_power = mmc_set_power, |
| 47 | .ocr_mask = 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 |