diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/mediatek/mt8188/Makefile.inc | 1 | ||||
| -rw-r--r-- | src/soc/mediatek/mt8188/msdc.c | 115 |
2 files changed, 116 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8188/Makefile.inc b/src/soc/mediatek/mt8188/Makefile.inc index 4be7b4a546..1cae90a7ca 100644 --- a/src/soc/mediatek/mt8188/Makefile.inc +++ b/src/soc/mediatek/mt8188/Makefile.inc @@ -23,6 +23,7 @@ romstage-y += ../common/pmif_spmi.c pmif_spmi.c ramstage-y += emi.c ramstage-y += ../common/mmu_operations.c ../common/mmu_cmops.c +ramstage-$(CONFIG_COMMONLIB_STORAGE_MMC) += ../common/msdc.c msdc.c ramstage-y += ../common/mt6359p.c mt6359p.c ramstage-y += ../common/pmif.c ../common/pmif_clk.c pmif_clk.c ramstage-y += ../common/pmif_spi.c pmif_spi.c diff --git a/src/soc/mediatek/mt8188/msdc.c b/src/soc/mediatek/mt8188/msdc.c new file mode 100644 index 0000000000..bb72f1fd45 --- /dev/null +++ b/src/soc/mediatek/mt8188/msdc.c @@ -0,0 +1,115 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +/* + * This file is created based on MT8188 Functional Specification + * Chapter number: 5.9 + */ + +#include <device/mmio.h> +#include <soc/addressmap.h> +#include <soc/gpio.h> +#include <soc/regulator.h> +#include <soc/msdc.h> +#include <soc/mt6359p.h> + +DEFINE_BITFIELD(MSDC0_DRV_0, 29, 18) +DEFINE_BITFIELD(MSDC0_DRV_1, 17, 0) +DEFINE_BITFIELD(MSDC1_DRV, 26, 9) +DEFINE_BITFIELD(MSDC1_GPIO_MODE0_0, 30, 28) +DEFINE_BITFIELD(MSDC1_GPIO_MODE0_1, 26, 24) +DEFINE_BITFIELD(MSDC1_GPIO_MODE0_2, 22, 20) +DEFINE_BITFIELD(MSDC1_GPIO_MODE0_3, 18, 16) +DEFINE_BITFIELD(MSDC1_GPIO_MODE0_4, 14, 12) +DEFINE_BITFIELD(MSDC1_GPIO_MODE1_0, 2, 0) + +#define MSDC0_DRV_OFFSET_0 0x0 +#define MSDC0_DRV_OFFSET_1 0x10 +#define MSDC1_DRV_OFFSET_0 0x0 + +#define MSDC0_DRV_VALUE_0 0x6db +#define MSDC0_DRV_VALUE_1 0x1b6db +#define MSDC1_DRV_VALUE_0 0x1b6db +#define MSDC1_GPIO_MODE0_VALUE 0x1 +#define MSDC1_GPIO_MODE1_VALUE 0x1 + +enum { + MSDC1_GPIO_MODE0_BASE = 0x10005440, + MSDC1_GPIO_MODE1_BASE = 0x10005450, +}; + +void mtk_msdc_configure_emmc(bool is_early_init) +{ + void *gpio_base = (void *)IOCFG_LT_BASE; + unsigned 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 pins driving to 8mA */ + SET32_BITFIELDS(gpio_base + MSDC0_DRV_OFFSET_0, MSDC0_DRV_0, MSDC0_DRV_VALUE_0); + SET32_BITFIELDS(gpio_base + MSDC0_DRV_OFFSET_1, MSDC0_DRV_1, MSDC0_DRV_VALUE_1); + + 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_RT_BASE; + void *gpio_mode0_base = (void *)MSDC1_GPIO_MODE0_BASE; + void *gpio_mode1_base = (void *)MSDC1_GPIO_MODE1_BASE; + unsigned 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 SD card cmd/dat/clk pins driving to 8mA */ + SET32_BITFIELDS(gpio_base + MSDC1_DRV_OFFSET_0, MSDC1_DRV, MSDC1_DRV_VALUE_0); + + /* set SD card dat2/dat1/dat0/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, + MSDC1_GPIO_MODE0_2, MSDC1_GPIO_MODE0_VALUE, + MSDC1_GPIO_MODE0_3, MSDC1_GPIO_MODE0_VALUE, + MSDC1_GPIO_MODE0_4, MSDC1_GPIO_MODE0_VALUE); + + /* set SD card dat3 pin to msdc1 mode */ + SET32_BITFIELDS(gpio_mode1_base, + MSDC1_GPIO_MODE1_0, MSDC1_GPIO_MODE1_VALUE); + + /* enable SD card power */ + mt6359p_init(); + mainboard_enable_regulator(MTK_REGULATOR_VMCH, true); + mainboard_enable_regulator(MTK_REGULATOR_VMC, true); + mainboard_set_regulator_voltage(MTK_REGULATOR_VMCH, 3000000); + mainboard_set_regulator_voltage(MTK_REGULATOR_VMC, 3000000); +} |