[coreboot-gerrit] Change in coreboot[master]: mb/google/asurada: Configure pins mode for SD

[Wenbin Mei (Code Review)]

Wenbin Mei has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/47008 )

Change subject: mb/google/asurada: Configure pins mode for SD
......................................................................

mb/google/asurada: Configure pins mode for SD

Configure the pins for SD to msdc1 mode and change the driving
value to 8mA.
Enable VCC and VCCQ power supply for SD.

Signed-off-by: Wenbin Mei 
Change-Id: I11151c659b251db987f797a6ae4a08a07971144b
---
M src/mainboard/google/asurada/mainboard.c
1 file changed, 25 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/08/47008/1

diff --git a/src/mainboard/google/asurada/mainboard.c b/src/mainboard/google/asurada/mainboard.c
index f7521fe..ac94662 100644
--- a/src/mainboard/google/asurada/mainboard.c
+++ b/src/mainboard/google/asurada/mainboard.c
@@ -8,6 +8,7 @@
 #include <soc/gpio.h>
 #include <soc/spm.h>
 #include <soc/usb.h>
+#include <soc/regulator.h>

#include "gpio.h"

@@ -16,7 +17,15 @@
 #define MSDC0_DRV_MASK	0x3fffffff
 #define MSDC1_DRV_MASK	0x3ffff000
 #define MSDC0_DRV_VALUE	0x24924924
-#define MSDC1_DRV_VALUE	0x24924000
+#define MSDC1_DRV_VALUE	0x1b6db000
+
+#define MSDC1_GPIO_MODE0_BASE	0x10005360
+#define MSDC1_GPIO_MODE0_MASK	0x77777000
+#define MSDC1_GPIO_MODE0_VALUE	0x11111000
+
+#define MSDC1_GPIO_MODE1_BASE	0x10005370
+#define MSDC1_GPIO_MODE1_MASK	0x7
+#define MSDC1_GPIO_MODE1_VALUE	0x1

static void register_reset_to_bl31(void)
 {
@@ -59,6 +68,9 @@
 static void configure_sdcard(void)
 {
    void *gpio_base = (void *)IOCFG_RM_BASE;
+	void *gpio_mode0_base = (void *)MSDC1_GPIO_MODE0_BASE;
+	void *gpio_mode1_base = (void *)MSDC1_GPIO_MODE1_BASE;
+	uint8_t enable = 1;
    int i;

const gpio_t sdcard_pu_pin[] = {
@@ -77,8 +89,19 @@
    for (i = 0; i < ARRAY_SIZE(sdcard_pd_pin); i++)
    	gpio_set_pull(sdcard_pd_pin[i], GPIO_PULL_ENABLE, GPIO_PULL_DOWN);

-	/* set sdcard cmd/dat/clk pins driving to 10mA */
+	/* set sdcard cmd/dat/clk pins driving to 8mA */
    clrsetbits32(gpio_base, MSDC1_DRV_MASK, MSDC1_DRV_VALUE);
+
+	/* set sdcard dat2/dat0/dat3/cmd/clk pins to msdc1 mode */
+	clrsetbits32(gpio_mode0_base, MSDC1_GPIO_MODE0_MASK, MSDC1_GPIO_MODE0_VALUE);
+
+	/* set sdcard dat1 pin to msdc1 mode */
+	clrsetbits32(gpio_mode1_base, MSDC1_GPIO_MODE1_MASK, MSDC1_GPIO_MODE1_VALUE);
+
+	if (!mainboard_regulator_is_enabled(MTK_REGULATOR_VCC))
+		mainboard_enable_requlator(MTK_REGULATOR_VCC, enable);
+	if (!mainboard_regulator_is_enabled(MTK_REGULATOR_VCCQ))
+		mainboard_enable_requlator(MTK_REGULATOR_VCCQ, enable);
 }

static void mainboard_init(struct device *dev)