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ux500: mop500: add TC35892 and MicroSD slot support

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Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
This commit is contained in:
Rabin Vincent 2010-08-09 19:18:17 +05:30 committed by Linus Walleij
parent e8a7e48bb2
commit b8410a150f
4 changed files with 118 additions and 1 deletions
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63
arch/arm/mach-ux500/board-mop500-sdi.c
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@ -20,6 +20,19 @@
#include "board-mop500.h"
static pin_cfg_t mop500_sdi_pins[] = {
/* SDI0 (MicroSD slot) */
GPIO18_MC0_CMDDIR,
GPIO19_MC0_DAT0DIR,
GPIO20_MC0_DAT2DIR,
GPIO21_MC0_DAT31DIR,
GPIO22_MC0_FBCLK,
GPIO23_MC0_CLK,
GPIO24_MC0_CMD,
GPIO25_MC0_DAT0,
GPIO26_MC0_DAT1,
GPIO27_MC0_DAT2,
GPIO28_MC0_DAT3,
/* SDI4 (on-board eMMC) */
GPIO197_MC4_DAT3,
GPIO198_MC4_DAT2,
@ -49,6 +62,55 @@ static pin_cfg_t mop500_sdi2_pins[] = {
GPIO138_MC2_DAT7,
};
/*
* SDI 0 (MicroSD slot)
*/
/* MMCIPOWER bits */
#define MCI_DATA2DIREN (1 << 2)
#define MCI_CMDDIREN (1 << 3)
#define MCI_DATA0DIREN (1 << 4)
#define MCI_DATA31DIREN (1 << 5)
#define MCI_FBCLKEN (1 << 7)
static u32 mop500_sdi0_vdd_handler(struct device *dev, unsigned int vdd,
unsigned char power_mode)
{
if (power_mode == MMC_POWER_UP)
gpio_set_value(GPIO_SDMMC_EN, 1);
else if (power_mode == MMC_POWER_OFF)
gpio_set_value(GPIO_SDMMC_EN, 0);
return MCI_FBCLKEN | MCI_CMDDIREN | MCI_DATA0DIREN |
MCI_DATA2DIREN | MCI_DATA31DIREN;
}
static struct mmci_platform_data mop500_sdi0_data = {
.vdd_handler = mop500_sdi0_vdd_handler,
.ocr_mask = MMC_VDD_29_30,
.f_max = 100000000,
.capabilities = MMC_CAP_4_BIT_DATA,
.gpio_cd = GPIO_SDMMC_CD,
.gpio_wp = -1,
};
void mop500_sdi_tc35892_init(void)
{
int ret;
ret = gpio_request(GPIO_SDMMC_EN, "SDMMC_EN");
if (!ret)
ret = gpio_request(GPIO_SDMMC_1V8_3V_SEL,
"GPIO_SDMMC_1V8_3V_SEL");
if (ret)
return;
gpio_direction_output(GPIO_SDMMC_1V8_3V_SEL, 1);
gpio_direction_output(GPIO_SDMMC_EN, 0);
amba_device_register(&u8500_sdi0_device, &iomem_resource);
}
/*
* SDI 2 (POP eMMC, not on DB8500ed)
*/
@ -78,6 +140,7 @@ void mop500_sdi_init(void)
{
nmk_config_pins(mop500_sdi_pins, ARRAY_SIZE(mop500_sdi_pins));
u8500_sdi0_device.dev.platform_data = &mop500_sdi0_data;
u8500_sdi2_device.dev.platform_data = &mop500_sdi2_data;
u8500_sdi4_device.dev.platform_data = &mop500_sdi4_data;

34
arch/arm/mach-ux500/board-mop500.c
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@ -13,11 +13,13 @@
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/i2c.h>
#include <linux/gpio.h>
#include <linux/amba/bus.h>
#include <linux/amba/pl022.h>
#include <linux/spi/spi.h>
#include <linux/mfd/ab8500.h>
#include <linux/mfd/tc35892.h>
#include <linux/input/matrix_keypad.h>
#include <asm/mach-types.h>
@ -69,6 +71,8 @@ static pin_cfg_t mop500_pins[] = {
GPIO166_KP_O2,
GPIO167_KP_O1,
GPIO168_KP_O0,
GPIO217_GPIO, /* GPIO_EXP_INT */
};
static void ab4500_spi_cs_control(u32 command)
@ -132,6 +136,33 @@ static struct pl022_ssp_controller ssp0_platform_data = {
.num_chipselect = 5,
};
/*
* TC35892
*/
static void mop500_tc35892_init(struct tc35892 *tc35892, unsigned int base)
{
mop500_sdi_tc35892_init();
}
static struct tc35892_gpio_platform_data mop500_tc35892_gpio_data = {
.gpio_base = MOP500_EGPIO(0),
.setup = mop500_tc35892_init,
};
static struct tc35892_platform_data mop500_tc35892_data = {
.gpio = &mop500_tc35892_gpio_data,
.irq_base = MOP500_EGPIO_IRQ_BASE,
};
static struct i2c_board_info mop500_i2c0_devices[] = {
{
I2C_BOARD_INFO("tc35892", 0x42),
.irq = NOMADIK_GPIO_TO_IRQ(217),
.platform_data = &mop500_tc35892_data,
},
};
#define U8500_I2C_CONTROLLER(id, _slsu, _tft, _rft, clk, _sm) \
static struct nmk_i2c_controller u8500_i2c##id##_data = { \
/* \
@ -314,6 +345,9 @@ static void __init u8500_init_machine(void)
ARRAY_SIZE(ab8500_spi_devices));
else /* If HW is v.1.1 or later use I2C to access AB8500 */
platform_device_register(&ab8500_device);
i2c_register_board_info(0, mop500_i2c0_devices,
ARRAY_SIZE(mop500_i2c0_devices));
}
MACHINE_START(U8500, "ST-Ericsson MOP500 platform")

8
arch/arm/mach-ux500/board-mop500.h
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@ -7,6 +7,14 @@
#ifndef __BOARD_MOP500_H
#define __BOARD_MOP500_H
#define MOP500_EGPIO(x) (NOMADIK_NR_GPIO + (x))
/* GPIOs on the TC35892 expander */
#define GPIO_SDMMC_CD MOP500_EGPIO(3)
#define GPIO_SDMMC_EN MOP500_EGPIO(17)
#define GPIO_SDMMC_1V8_3V_SEL MOP500_EGPIO(18)
extern void mop500_sdi_init(void);
extern void mop500_sdi_tc35892_init(void);
#endif

14
arch/arm/mach-ux500/include/mach/irqs-board-mop500.h
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@ -13,7 +13,19 @@
#define MOP500_AB8500_IRQ_BASE IRQ_BOARD_START
#define MOP500_AB8500_IRQ_END (MOP500_AB8500_IRQ_BASE \
+ AB8500_NR_IRQS)
#define MOP500_IRQ_END MOP500_AB8500_IRQ_END
#define TC35892_NR_INTERNAL_IRQS 8
#define TC35892_INT_GPIO(x) (TC35892_NR_INTERNAL_IRQS + (x))
#define TC35892_NR_GPIOS 24
#define TC35892_NR_IRQS TC35892_INT_GPIO(TC35892_NR_GPIOS)
#define MOP500_EGPIO_NR_IRQS TC35892_NR_IRQS
#define MOP500_EGPIO_IRQ_BASE MOP500_AB8500_IRQ_END
#define MOP500_EGPIO_IRQ_END (MOP500_EGPIO_IRQ_BASE \
+ MOP500_EGPIO_NR_IRQS)
#define MOP500_IRQ_END MOP500_EGPIO_IRQ_END
#if MOP500_IRQ_END > IRQ_BOARD_END
#undef IRQ_BOARD_END