ux500: mop500: add TC35892 and MicroSD slot support

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>

1 files changed, 63 insertions, 0 deletions

diff --git a/arch/arm/mach-ux500/board-mop500-sdi.c b/arch/arm/mach-ux500/board-mop500-sdi.c
index bac995665b58..f0095ffee438 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;