1 files changed, 108 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8195/msdc.c b/src/soc/mediatek/mt8195/msdc.c
new file mode 100644
index 0000000000..bbfeaa6c81
--- /dev/null
+++ b/src/soc/mediatek/mt8195/msdc.c
@@ -0,0 +1,108 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <device/mmio.h>
+#include <soc/addressmap.h>
+#include <soc/gpio.h>
+#include <soc/i2c.h>
+#include <soc/regulator.h>
+#include <soc/msdc.h>
+#include <soc/mt6360.h>
+
+DEFINE_BITFIELD(MSDC0_DRV, 29, 0)
+DEFINE_BITFIELD(MSDC1_DRV, 17, 0)
+DEFINE_BITFIELD(MSDC1_GPIO_MODE0_0, 26, 24)
+DEFINE_BITFIELD(MSDC1_GPIO_MODE0_1, 30, 28)
+DEFINE_BITFIELD(MSDC1_GPIO_MODE1_0, 2, 0)
+DEFINE_BITFIELD(MSDC1_GPIO_MODE1_1, 6, 4)
+DEFINE_BITFIELD(MSDC1_GPIO_MODE1_2, 10, 8)
+DEFINE_BITFIELD(MSDC1_GPIO_MODE1_3, 14, 12)
+
+#define MSDC0_BASE	0x11230000
+#define MSDC0_TOP_BASE	0x11f50000
+
+#define MSDC0_DRV_VALUE	0x1b6db6db
+#define MSDC1_DRV_VALUE	0x1b6db
+#define MSDC1_GPIO_MODE0_VALUE	0x1
+#define MSDC1_GPIO_MODE1_VALUE	0x1
+
+enum {
+	MSDC1_GPIO_MODE0_BASE = 0x100053d0,
+	MSDC1_GPIO_MODE1_BASE = 0x100053e0,
+};
+
+void mtk_msdc_configure_emmc(bool is_early_init)
+{
+	void *gpio_base = (void *)IOCFG_TL_BASE;
+	int i;
+
+	const gpio_t emmc_pu_pin[] = {
+		GPIO(EMMC_DAT0), GPIO(EMMC_DAT1),
+		GPIO(EMMC_DAT2), GPIO(EMMC_DAT3),
+		GPIO(EMMC_DAT4), GPIO(EMMC_DAT5),
+		GPIO(EMMC_DAT6), GPIO(EMMC_DAT7),
+		GPIO(EMMC_CMD), GPIO(EMMC_RSTB),
+	};
+
+	const gpio_t emmc_pd_pin[] = {
+		GPIO(EMMC_DSL), GPIO(EMMC_CLK),
+	};
+
+	for (i = 0; i < ARRAY_SIZE(emmc_pu_pin); i++)
+		gpio_set_pull(emmc_pu_pin[i], GPIO_PULL_ENABLE, GPIO_PULL_UP);
+
+	for (i = 0; i < ARRAY_SIZE(emmc_pd_pin); i++)
+		gpio_set_pull(emmc_pd_pin[i], GPIO_PULL_ENABLE, GPIO_PULL_DOWN);
+
+	/* set eMMC cmd/dat/clk/ds/rstb pins driving to 8mA */
+	SET32_BITFIELDS(gpio_base, MSDC0_DRV, MSDC0_DRV_VALUE);
+
+	if (is_early_init)
+		mtk_emmc_early_init((void *)MSDC0_BASE, (void *)MSDC0_TOP_BASE);
+}
+
+void mtk_msdc_configure_sdcard(void)
+{
+	void *gpio_base = (void *)IOCFG_RB_BASE;
+	void *gpio_mode0_base = (void *)MSDC1_GPIO_MODE0_BASE;
+	void *gpio_mode1_base = (void *)MSDC1_GPIO_MODE1_BASE;
+	int i;
+
+	const gpio_t sdcard_pu_pin[] = {
+		GPIO(MSDC1_DAT0), GPIO(MSDC1_DAT1),
+		GPIO(MSDC1_DAT2), GPIO(MSDC1_DAT3),
+		GPIO(MSDC1_CMD),
+	};
+
+	const gpio_t sdcard_pd_pin[] = {
+		GPIO(MSDC1_CLK),
+	};
+
+	for (i = 0; i < ARRAY_SIZE(sdcard_pu_pin); i++)
+		gpio_set_pull(sdcard_pu_pin[i], GPIO_PULL_ENABLE, GPIO_PULL_UP);
+
+	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 8mA */
+	SET32_BITFIELDS(gpio_base, MSDC1_DRV, MSDC1_DRV_VALUE);
+
+	/* set sdcard dat2/dat0/dat3/cmd/clk pins to msdc1 mode */
+	SET32_BITFIELDS(gpio_mode0_base,
+			MSDC1_GPIO_MODE0_0, MSDC1_GPIO_MODE0_VALUE,
+			MSDC1_GPIO_MODE0_1, MSDC1_GPIO_MODE0_VALUE);
+
+	/* set sdcard dat1 pin to msdc1 mode */
+	SET32_BITFIELDS(gpio_mode1_base,
+			MSDC1_GPIO_MODE1_0, MSDC1_GPIO_MODE1_VALUE,
+			MSDC1_GPIO_MODE1_1, MSDC1_GPIO_MODE1_VALUE,
+			MSDC1_GPIO_MODE1_2, MSDC1_GPIO_MODE1_VALUE,
+			MSDC1_GPIO_MODE1_3, MSDC1_GPIO_MODE1_VALUE);
+
+	mtk_i2c_bus_init(I2C7, I2C_SPEED_FAST);
+
+	if (CONFIG(BOARD_GOOGLE_CHERRY))
+		mt6360_init(I2C7);
+
+	mainboard_enable_regulator(MTK_REGULATOR_VCCQ, 1);
+	mainboard_enable_regulator(MTK_REGULATOR_VCC, 1);
+}