[PATCH 4/4] ux500: mop500: add TC35892 and MicroSD slot support
Rabin Vincent
rabin.vincent at stericsson.com
Mon Aug 9 09:48:17 EDT 2010
Acked-by: Linus Walleij <linus.walleij at stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent at stericsson.com>
---
arch/arm/mach-ux500/board-mop500-sdi.c | 63 ++++++++++++++++++++
arch/arm/mach-ux500/board-mop500.c | 34 +++++++++++
arch/arm/mach-ux500/board-mop500.h | 8 +++
.../mach-ux500/include/mach/irqs-board-mop500.h | 14 ++++-
4 files changed, 118 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-ux500/board-mop500-sdi.c b/arch/arm/mach-ux500/board-mop500-sdi.c
index bac9956..f0095ff 100644
--- a/arch/arm/mach-ux500/board-mop500-sdi.c
+++ b/arch/arm/mach-ux500/board-mop500-sdi.c
@@ -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,
@@ -50,6 +63,55 @@ static pin_cfg_t mop500_sdi2_pins[] = {
};
/*
+ * 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;
diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index de31032..3abdd7e 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -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 <asm/mach-types.h>
#include <asm/mach/arch.h>
@@ -48,6 +50,8 @@ static pin_cfg_t mop500_pins[] = {
GPIO11_I2C2_SCL,
GPIO229_I2C3_SDA,
GPIO230_I2C3_SCL,
+
+ GPIO217_GPIO, /* GPIO_EXP_INT */
};
static void ab4500_spi_cs_control(u32 command)
@@ -99,6 +103,33 @@ 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 = { \
/* \
@@ -168,6 +199,9 @@ static void __init u8500_init_machine(void)
spi_register_board_info(u8500_spi_devices,
ARRAY_SIZE(u8500_spi_devices));
+
+ i2c_register_board_info(0, mop500_i2c0_devices,
+ ARRAY_SIZE(mop500_i2c0_devices));
}
MACHINE_START(U8500, "ST-Ericsson MOP500 platform")
diff --git a/arch/arm/mach-ux500/board-mop500.h b/arch/arm/mach-ux500/board-mop500.h
index 2d24032..3a338e6 100644
--- a/arch/arm/mach-ux500/board-mop500.h
+++ b/arch/arm/mach-ux500/board-mop500.h
@@ -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
diff --git a/arch/arm/mach-ux500/include/mach/irqs-board-mop500.h b/arch/arm/mach-ux500/include/mach/irqs-board-mop500.h
index cca4f70..7ee8aaa 100644
--- a/arch/arm/mach-ux500/include/mach/irqs-board-mop500.h
+++ b/arch/arm/mach-ux500/include/mach/irqs-board-mop500.h
@@ -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
--
1.7.2.dirty
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