/* SPDX-License-Identifier: GPL-2.0-only */ /* * This file is created based on MT8186 Functional Specification * Chapter number: 5.7 */ #include <device/mmio.h> #include <gpio.h> #include <soc/addressmap.h> #include <soc/regulator.h> #include <soc/msdc.h> DEFINE_BITFIELD(MSDC0_DRV, 29, 0) DEFINE_BITFIELD(MSDC1_DRV, 23, 6) DEFINE_BITFIELD(MSDC1_GPIO_MODE0_0, 18, 16) DEFINE_BITFIELD(MSDC1_GPIO_MODE0_1, 22, 20) DEFINE_BITFIELD(MSDC1_GPIO_MODE0_2, 26, 24) DEFINE_BITFIELD(MSDC1_GPIO_MODE0_3, 30, 28) DEFINE_BITFIELD(MSDC1_GPIO_MODE1_0, 2, 0) DEFINE_BITFIELD(MSDC1_GPIO_MODE1_1, 6, 4) #define MSDC0_BASE 0x11230000 #define MSDC0_TOP_BASE 0x11cd0000 #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 = 0x100053a0, MSDC1_GPIO_MODE1_BASE = 0x100053b0, }; void mtk_msdc_configure_emmc(bool is_early_init) { void *gpio_base = (void *)IOCFG_LT_BASE; int i; const gpio_t emmc_pu_pin[] = { GPIO(MSDC0_DAT0), GPIO(MSDC0_DAT1), GPIO(MSDC0_DAT2), GPIO(MSDC0_DAT3), GPIO(MSDC0_DAT4), GPIO(MSDC0_DAT5), GPIO(MSDC0_DAT6), GPIO(MSDC0_DAT7), GPIO(MSDC0_CMD), GPIO(MSDC0_RSTB), }; const gpio_t emmc_pd_pin[] = { GPIO(MSDC0_DSL), GPIO(MSDC0_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, 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_LB_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, MSDC1_GPIO_MODE0_2, MSDC1_GPIO_MODE0_VALUE, MSDC1_GPIO_MODE0_3, 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); /* enable SDCard power */ mainboard_set_regulator_voltage(MTK_REGULATOR_VMCH, 3300000); mainboard_set_regulator_voltage(MTK_REGULATOR_VMC, 3300000); }