mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-21 03:33:59 +08:00
087c50302f
Use MMC multislot structures for Siemens SX1 board Signed-off-by: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br> Signed-off-by: Tony Lindgren <tony@atomide.com>
125 lines
2.7 KiB
C
125 lines
2.7 KiB
C
/*
|
|
* linux/arch/arm/mach-omap1/board-sx1-mmc.c
|
|
*
|
|
* Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT
|
|
* Author: Carlos Eduardo Aguiar <carlos.aguiar@indt.org.br>
|
|
*
|
|
* This code is based on linux/arch/arm/mach-omap1/board-h2-mmc.c, which is:
|
|
* Copyright (C) 2007 Instituto Nokia de Tecnologia - INdT
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <asm/arch/hardware.h>
|
|
#include <asm/arch/mmc.h>
|
|
#include <asm/arch/gpio.h>
|
|
|
|
#ifdef CONFIG_MMC_OMAP
|
|
static int slot_cover_open;
|
|
static struct device *mmc_device;
|
|
|
|
static int sx1_mmc_set_power(struct device *dev, int slot, int power_on,
|
|
int vdd)
|
|
{
|
|
int err;
|
|
u8 dat = 0;
|
|
|
|
#ifdef CONFIG_MMC_DEBUG
|
|
dev_dbg(dev, "Set slot %d power: %s (vdd %d)\n", slot + 1,
|
|
power_on ? "on" : "off", vdd);
|
|
#endif
|
|
|
|
if (slot != 0) {
|
|
dev_err(dev, "No such slot %d\n", slot + 1);
|
|
return -ENODEV;
|
|
}
|
|
|
|
err = sx1_i2c_read_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, &dat);
|
|
if (err < 0)
|
|
return err;
|
|
|
|
if (power_on)
|
|
dat |= SOFIA_MMC_POWER;
|
|
else
|
|
dat &= ~SOFIA_MMC_POWER;
|
|
|
|
return sx1_i2c_write_byte(SOFIA_I2C_ADDR, SOFIA_POWER1_REG, dat);
|
|
}
|
|
|
|
static int sx1_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode)
|
|
{
|
|
#ifdef CONFIG_MMC_DEBUG
|
|
dev_dbg(dev, "Set slot %d bus_mode %s\n", slot + 1,
|
|
bus_mode == MMC_BUSMODE_OPENDRAIN ? "open-drain" : "push-pull");
|
|
#endif
|
|
if (slot != 0) {
|
|
dev_err(dev, "No such slot %d\n", slot + 1);
|
|
return -ENODEV;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sx1_mmc_get_cover_state(struct device *dev, int slot)
|
|
{
|
|
BUG_ON(slot != 0);
|
|
|
|
return slot_cover_open;
|
|
}
|
|
|
|
void sx1_mmc_slot_cover_handler(void *arg, int state)
|
|
{
|
|
if (mmc_device == NULL)
|
|
return;
|
|
|
|
slot_cover_open = state;
|
|
omap_mmc_notify_cover_event(mmc_device, 0, state);
|
|
}
|
|
|
|
static int sx1_mmc_late_init(struct device *dev)
|
|
{
|
|
int ret = 0;
|
|
|
|
mmc_device = dev;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void sx1_mmc_cleanup(struct device *dev)
|
|
{
|
|
}
|
|
|
|
static struct omap_mmc_platform_data sx1_mmc_data = {
|
|
.nr_slots = 1,
|
|
.switch_slot = NULL,
|
|
.init = sx1_mmc_late_init,
|
|
.cleanup = sx1_mmc_cleanup,
|
|
.slots[0] = {
|
|
.set_power = sx1_mmc_set_power,
|
|
.set_bus_mode = sx1_mmc_set_bus_mode,
|
|
.get_ro = NULL,
|
|
.get_cover_state = sx1_mmc_get_cover_state,
|
|
.ocr_mask = MMC_VDD_28_29 | MMC_VDD_30_31 |
|
|
MMC_VDD_32_33 | MMC_VDD_33_34,
|
|
.name = "mmcblk",
|
|
},
|
|
};
|
|
|
|
void __init sx1_mmc_init(void)
|
|
{
|
|
omap_set_mmc_info(1, &sx1_mmc_data);
|
|
}
|
|
|
|
#else
|
|
|
|
void __init sx1_mmc_init(void)
|
|
{
|
|
}
|
|
|
|
void sx1_mmc_slot_cover_handler(void *arg, int state)
|
|
{
|
|
}
|
|
#endif
|