src/soc/mediatek/mt8195/msdc.c

   1 /* SPDX-License-Identifier: GPL-2.0-only OR MIT */
   2
   3 #include <device/mmio.h>
   4 #include <gpio.h>
   5 #include <soc/addressmap.h>
   6 #include <soc/i2c.h>
   7 #include <soc/regulator.h>
   8 #include <soc/msdc.h>
   9 #include <soc/mt6360.h>
  10
  11 DEFINE_BITFIELD(MSDC0_DRV, 29, 0)
  12 DEFINE_BITFIELD(MSDC1_DRV, 17, 0)
  13 DEFINE_BITFIELD(MSDC1_GPIO_MODE0_0, 26, 24)
  14 DEFINE_BITFIELD(MSDC1_GPIO_MODE0_1, 30, 28)
  15 DEFINE_BITFIELD(MSDC1_GPIO_MODE1_0, 2, 0)
  16 DEFINE_BITFIELD(MSDC1_GPIO_MODE1_1, 6, 4)
  17 DEFINE_BITFIELD(MSDC1_GPIO_MODE1_2, 10, 8)
  18 DEFINE_BITFIELD(MSDC1_GPIO_MODE1_3, 14, 12)
  19
  20 #define MSDC0_BASE      0x11230000
  21 #define MSDC0_TOP_BASE  0x11f50000
  22
  23 #define MSDC0_DRV_VALUE 0x1b6db6db
  24 #define MSDC1_DRV_VALUE 0x1b6db
  25 #define MSDC1_GPIO_MODE0_VALUE  0x1
  26 #define MSDC1_GPIO_MODE1_VALUE  0x1
  27
  28 enum {
  29         MSDC1_GPIO_MODE0_BASE = 0x100053d0,
  30         MSDC1_GPIO_MODE1_BASE = 0x100053e0,
  31 };
  32
  33 void mtk_msdc_configure_emmc(bool is_early_init)
  34 {
  35         void *gpio_base = (void *)IOCFG_TL_BASE;
  36         int i;
  37
  38         const gpio_t emmc_pu_pin[] = {
  39                 GPIO(EMMC_DAT0), GPIO(EMMC_DAT1),
  40                 GPIO(EMMC_DAT2), GPIO(EMMC_DAT3),
  41                 GPIO(EMMC_DAT4), GPIO(EMMC_DAT5),
  42                 GPIO(EMMC_DAT6), GPIO(EMMC_DAT7),
  43                 GPIO(EMMC_CMD), GPIO(EMMC_RSTB),
  44         };
  45
  46         const gpio_t emmc_pd_pin[] = {
  47                 GPIO(EMMC_DSL), GPIO(EMMC_CLK),
  48         };
  49
  50         for (i = 0; i < ARRAY_SIZE(emmc_pu_pin); i++)
  51                 gpio_set_pull(emmc_pu_pin[i], GPIO_PULL_ENABLE, GPIO_PULL_UP);
  52
  53         for (i = 0; i < ARRAY_SIZE(emmc_pd_pin); i++)
  54                 gpio_set_pull(emmc_pd_pin[i], GPIO_PULL_ENABLE, GPIO_PULL_DOWN);
  55
  56         /* set eMMC cmd/dat/clk/ds/rstb pins driving to 8mA */
  57         SET32_BITFIELDS(gpio_base, MSDC0_DRV, MSDC0_DRV_VALUE);
  58
  59         if (is_early_init)
  60                 mtk_emmc_early_init((void *)MSDC0_BASE, (void *)MSDC0_TOP_BASE);
  61 }
  62
  63 void mtk_msdc_configure_sdcard(void)
  64 {
  65         void *gpio_base = (void *)IOCFG_RB_BASE;
  66         void *gpio_mode0_base = (void *)MSDC1_GPIO_MODE0_BASE;
  67         void *gpio_mode1_base = (void *)MSDC1_GPIO_MODE1_BASE;
  68         int i;
  69
  70         const gpio_t sdcard_pu_pin[] = {
  71                 GPIO(MSDC1_DAT0), GPIO(MSDC1_DAT1),
  72                 GPIO(MSDC1_DAT2), GPIO(MSDC1_DAT3),
  73                 GPIO(MSDC1_CMD),
  74         };
  75
  76         const gpio_t sdcard_pd_pin[] = {
  77                 GPIO(MSDC1_CLK),
  78         };
  79
  80         for (i = 0; i < ARRAY_SIZE(sdcard_pu_pin); i++)
  81                 gpio_set_pull(sdcard_pu_pin[i], GPIO_PULL_ENABLE, GPIO_PULL_UP);
  82
  83         for (i = 0; i < ARRAY_SIZE(sdcard_pd_pin); i++)
  84                 gpio_set_pull(sdcard_pd_pin[i], GPIO_PULL_ENABLE, GPIO_PULL_DOWN);
  85
  86         /* set sdcard cmd/dat/clk pins driving to 8mA */
  87         SET32_BITFIELDS(gpio_base, MSDC1_DRV, MSDC1_DRV_VALUE);
  88
  89         /* set sdcard dat2/dat0/dat3/cmd/clk pins to msdc1 mode */
  90         SET32_BITFIELDS(gpio_mode0_base,
  91                         MSDC1_GPIO_MODE0_0, MSDC1_GPIO_MODE0_VALUE,
  92                         MSDC1_GPIO_MODE0_1, MSDC1_GPIO_MODE0_VALUE);
  93
  94         /* set sdcard dat1 pin to msdc1 mode */
  95         SET32_BITFIELDS(gpio_mode1_base,
  96                         MSDC1_GPIO_MODE1_0, MSDC1_GPIO_MODE1_VALUE,
  97                         MSDC1_GPIO_MODE1_1, MSDC1_GPIO_MODE1_VALUE,
  98                         MSDC1_GPIO_MODE1_2, MSDC1_GPIO_MODE1_VALUE,
  99                         MSDC1_GPIO_MODE1_3, MSDC1_GPIO_MODE1_VALUE);
 100
 101         mtk_i2c_bus_init(I2C7, I2C_SPEED_FAST);
 102
 103         if (CONFIG(BOARD_GOOGLE_CHERRY))
 104                 mt6360_init(I2C7);
 105
 106         mainboard_enable_regulator(MTK_REGULATOR_VCCQ, true);
 107         mainboard_enable_regulator(MTK_REGULATOR_VCC, true);
 108 }