diff options
Diffstat (limited to 'src/mainboard/google/gru/mainboard.c')
| -rw-r--r-- | src/mainboard/google/gru/mainboard.c | 37 |
1 files changed, 22 insertions, 15 deletions
diff --git a/src/mainboard/google/gru/mainboard.c b/src/mainboard/google/gru/mainboard.c index a2b74badf2..8359ca49dc 100644 --- a/src/mainboard/google/gru/mainboard.c +++ b/src/mainboard/google/gru/mainboard.c @@ -94,19 +94,13 @@ static void configure_sdmmc(void) gpio_output(GPIO(2, D, 4), 0); /* Keep the max voltage */ - /* - * The SD card on this board is connected to port SDMMC0, which is - * multiplexed with GPIO4B pins 0..5. - * - * Disable all pullups on these pins. For pullup configuration - * register layout stacks banks 2 through 4 together, hence [2] means - * group 4, [1] means bank B. This register is described on page 342 - * of section 1 of the TRM. - * - * Each GPIO pin's pull config takes two bits, writing zero to the - * field disables pull ups/downs, as described on page 342 of rk3399 - * TRM Version 0.3 Part 1. - */ + gpio_input(GPIO(4, B, 0)); /* SDMMC0_D0 remove pull-up */ + gpio_input(GPIO(4, B, 1)); /* SDMMC0_D1 remove pull-up */ + gpio_input(GPIO(4, B, 2)); /* SDMMC0_D2 remove pull-up */ + gpio_input(GPIO(4, B, 3)); /* SDMMC0_D3 remove pull-up */ + gpio_input(GPIO(4, B, 4)); /* SDMMC0_CLK remove pull-down */ + gpio_input(GPIO(4, B, 5)); /* SDMMC0_CMD remove pull-up */ + write32(&rk3399_grf->gpio2_p[2][1], RK_CLRSETBITS(0xfff, 0)); /* @@ -132,6 +126,16 @@ static void configure_sdmmc(void) static void configure_codec(void) { + gpio_input(GPIO(3, D, 0)); /* I2S0_SCLK remove pull-up */ + gpio_input(GPIO(3, D, 1)); /* I2S0_RX remove pull-up */ + gpio_input(GPIO(3, D, 2)); /* I2S0_TX remove pull-up */ + gpio_input(GPIO(3, D, 3)); /* I2S0_SDI0 remove pull-up */ + gpio_input(GPIO(3, D, 4)); /* I2S0_SDI1 remove pull-up */ + /* GPIO3_D5 (I2S0_SDI2SDO2) not connected */ + gpio_input(GPIO(3, D, 6)); /* I2S0_SDO1 remove pull-up */ + gpio_input(GPIO(3, D, 7)); /* I2S0_SDO0 remove pull-up */ + gpio_input(GPIO(4, A, 0)); /* I2S0_MCLK remove pull-up */ + write32(&rk3399_grf->iomux_i2s0, IOMUX_I2S0); write32(&rk3399_grf->iomux_i2sclk, IOMUX_I2SCLK); @@ -206,10 +210,13 @@ static void enable_backlight_booster(void) */ udelay(1000); - /* Select pinmux for i2c0, which is the display backlight booster. */ + gpio_input(GPIO(1, B, 7)); /* I2C0_SDA remove pull_up */ + gpio_input(GPIO(1, C, 0)); /* I2C0_SCL remove pull_up */ + + i2c_init(0, 100*KHz); + write32(&rk3399_pmugrf->iomux_i2c0_sda, IOMUX_I2C0_SDA); write32(&rk3399_pmugrf->iomux_i2c0_scl, IOMUX_I2C0_SCL); - i2c_init(0, 100*KHz); for (i = 0; i < ARRAY_SIZE(i2c_writes); i++) { i2c_buf[0] = i2c_writes[i].reg; |