xref: /linux/arch/arm/mach-omap1/board-sx1-mmc.c (revision 0526b56cbc3c489642bd6a5fe4b718dea7ef0ee8)
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * linux/arch/arm/mach-omap1/board-sx1-mmc.c
4  *
5  * Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT
6  * Author: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br>
7  *
8  * This code is based on linux/arch/arm/mach-omap1/board-h2-mmc.c, which is:
9  * Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT
10  */
11 
12 #include <linux/gpio.h>
13 #include <linux/platform_device.h>
14 
15 #include "hardware.h"
16 #include "board-sx1.h"
17 #include "mmc.h"
18 
19 #if IS_ENABLED(CONFIG_MMC_OMAP)
20 
21 static int mmc_set_power(struct device *dev, int slot, int power_on,
22 				int vdd)
23 {
24 	int err;
25 	u8 dat = 0;
26 
27 	err = sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, &dat);
28 	if (err < 0)
29 		return err;
30 
31 	if (power_on)
32 		dat |= SOFIA_MMC_POWER;
33 	else
34 		dat &= ~SOFIA_MMC_POWER;
35 
36 	return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, dat);
37 }
38 
39 /* Cover switch is at OMAP_MPUIO(3) */
40 static struct omap_mmc_platform_data mmc1_data = {
41 	.nr_slots                       = 1,
42 	.slots[0]       = {
43 		.set_power              = mmc_set_power,
44 		.ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
45 		.name                   = "mmcblk",
46 	},
47 };
48 
49 static struct omap_mmc_platform_data *mmc_data[OMAP15XX_NR_MMC];
50 
51 void __init sx1_mmc_init(void)
52 {
53 	mmc_data[0] = &mmc1_data;
54 	omap1_init_mmc(mmc_data, OMAP15XX_NR_MMC);
55 }
56 
57 #else
58 
59 void __init sx1_mmc_init(void)
60 {
61 }
62 
63 #endif
64