diff options
Diffstat (limited to 'src/mainboard/google')
| -rw-r--r-- | src/mainboard/google/gru/Kconfig | 5 | ||||
| -rw-r--r-- | src/mainboard/google/gru/board.h | 26 | ||||
| -rw-r--r-- | src/mainboard/google/gru/bootblock.c | 31 | ||||
| -rw-r--r-- | src/mainboard/google/gru/mainboard.c | 44 | ||||
| -rw-r--r-- | src/mainboard/google/gru/pwm_regulator.c | 27 | ||||
| -rw-r--r-- | src/mainboard/google/gru/romstage.c | 11 |
6 files changed, 101 insertions, 43 deletions
diff --git a/src/mainboard/google/gru/Kconfig b/src/mainboard/google/gru/Kconfig index 9243251fbb..b66dab48df 100644 --- a/src/mainboard/google/gru/Kconfig +++ b/src/mainboard/google/gru/Kconfig @@ -75,6 +75,11 @@ config DRIVER_TPM_I2C_ADDR hex default 0x20 +config DRIVER_TPM_SPI_BUS + hex + default 0x2 if BOARD_GOOGLE_SCARLET + default 0x0 + config CONSOLE_SERIAL_UART_ADDRESS hex depends on DRIVERS_UART diff --git a/src/mainboard/google/gru/board.h b/src/mainboard/google/gru/board.h index 8acbe34c92..f240dcf0ab 100644 --- a/src/mainboard/google/gru/board.h +++ b/src/mainboard/google/gru/board.h @@ -17,18 +17,36 @@ #ifndef __COREBOOT_SRC_MAINBOARD_GOOGLE_GRU_BOARD_H #define __COREBOOT_SRC_MAINBOARD_GOOGLE_GRU_BOARD_H +#include <assert.h> #include <gpio.h> +#define GPIO_POWEROFF GPIO(1, A, 6) +#define GPIO_RESET GPIO(0, B, 3) +#define GPIO_SDMMC_PWR GPIO(4, D, 5) + +#if IS_ENABLED(CONFIG_BOARD_GOOGLE_SCARLET) +#define GPIO_BACKLIGHT GPIO(4, C, 5) +#define GPIO_EC_IN_RW GPIO(0, A, 1) +#define GPIO_EC_IRQ GPIO(1, C, 2) +#define GPIO_P15V_EN dead_code_t(gpio_t, "PP1500 doesn't exist on Scarlet") +#define GPIO_P18V_AUDIO_PWREN dead_code_t(gpio_t, "doesn't exist on Scarlet") +#define GPIO_P30V_EN dead_code_t(gpio_t, "PP3000 doesn't exist on Scarlet") +#define GPIO_TP_RST_L dead_code_t(gpio_t, "don't need TP_RST_L on Scarlet") +#define GPIO_TPM_IRQ GPIO(1, C, 1) +#define GPIO_WLAN_RST_L dead_code_t(gpio_t, "no WLAN reset on Scarlet in FW") +#define GPIO_WP GPIO(0, B, 5) +#else #define GPIO_BACKLIGHT GPIO(1, C, 1) #define GPIO_EC_IN_RW GPIO(3, B, 0) #define GPIO_EC_IRQ GPIO(0, A, 1) -#define GPIO_POWEROFF GPIO(1, A, 6) -#define GPIO_RESET GPIO(0, B, 3) -#define GPIO_WP GPIO(1, C, 2) #define GPIO_P15V_EN GPIO(0, B, 2) +#define GPIO_P18V_AUDIO_PWREN GPIO(0, A, 2) #define GPIO_P30V_EN GPIO(0, B, 4) -#define GPIO_P18V_AUDIO_PWREN GPIO(0, A, 2) +#define GPIO_TP_RST_L GPIO(3, B, 4) /* may also be an I2C pull-up enable */ #define GPIO_TPM_IRQ GPIO(0, A, 5) +#define GPIO_WLAN_RST_L GPIO(1, B, 3) +#define GPIO_WP GPIO(1, C, 2) +#endif void setup_chromeos_gpios(void); diff --git a/src/mainboard/google/gru/bootblock.c b/src/mainboard/google/gru/bootblock.c index 4320fcedad..7359f2a302 100644 --- a/src/mainboard/google/gru/bootblock.c +++ b/src/mainboard/google/gru/bootblock.c @@ -44,12 +44,12 @@ void bootblock_mainboard_early_init(void) */ write32(&rk3399_grf->io_vsel, RK_SETBITS(1 << 0)); - /* - * Let's enable these power rails here, we are already running the SPI - * Flash based code. - */ - gpio_output(GPIO(0, B, 2), 1); /* PP1500_EN */ - gpio_output(GPIO(0, B, 4), 1); /* PP3000_EN */ + if (!IS_ENABLED(CONFIG_BOARD_GOOGLE_SCARLET)) { + /* Enable rails powering GPIO blocks, among other things. + These are EC-controlled on Scarlet and already on. */ + gpio_output(GPIO_P15V_EN, 1); + gpio_output(GPIO_P30V_EN, 1); + } #if IS_ENABLED(CONFIG_DRIVERS_UART) _Static_assert(CONFIG_CONSOLE_SERIAL_UART_ADDRESS == UART2_BASE, @@ -92,14 +92,21 @@ static void configure_ec(void) static void configure_tpm(void) { if (IS_ENABLED(CONFIG_GRU_HAS_TPM2)) { - gpio_input(GPIO(3, A, 4)); /* SPI0_MISO remove pull-up */ - gpio_input(GPIO(3, A, 5)); /* SPI0_MOSI remove pull-up */ - gpio_input(GPIO(3, A, 6)); /* SPI0_CLK remove pull-up */ - gpio_input_pullup(GPIO(3, A, 7)); /* SPI0_CS confirm */ - rockchip_spi_init(CONFIG_DRIVER_TPM_SPI_BUS, 1500*KHz); - write32(&rk3399_grf->iomux_spi0, IOMUX_SPI0); + if (IS_ENABLED(CONFIG_BOARD_GOOGLE_SCARLET)) { + gpio_input(GPIO(2, B, 1)); /* SPI2_MISO no-pull */ + gpio_input(GPIO(2, B, 2)); /* SPI2_MOSI no-pull */ + gpio_input(GPIO(2, B, 3)); /* SPI2_CLK no-pull */ + gpio_input_pullup(GPIO(2, B, 4)); /* SPI2_CS */ + write32(&rk3399_grf->iomux_spi2, IOMUX_SPI2); + } else { + gpio_input(GPIO(3, A, 4)); /* SPI0_MISO no-pull */ + gpio_input(GPIO(3, A, 5)); /* SPI0_MOSI no-pull */ + gpio_input(GPIO(3, A, 6)); /* SPI0_CLK no-pull */ + gpio_input_pullup(GPIO(3, A, 7)); /* SPI0_CS */ + write32(&rk3399_grf->iomux_spi0, IOMUX_SPI0); + } gpio_input_irq(GPIO_TPM_IRQ, IRQ_TYPE_EDGE_RISING); } else { diff --git a/src/mainboard/google/gru/mainboard.c b/src/mainboard/google/gru/mainboard.c index fa127edf82..2542d74106 100644 --- a/src/mainboard/google/gru/mainboard.c +++ b/src/mainboard/google/gru/mainboard.c @@ -34,21 +34,21 @@ /* * We have to drive the stronger pull-up within 1 second of powering up the - * touchpad to prevent its firmware from falling into recovery. + * touchpad to prevent its firmware from falling into recovery. Not on Scarlet. */ static void configure_touchpad(void) { - gpio_output(GPIO(3, B, 4), 1); /* TP's I2C pull-up rail */ + gpio_output(GPIO_TP_RST_L, 1); /* TP's I2C pull-up rail */ } /* * Wifi's PDN/RST line is pulled down by its (unpowered) voltage rails, but * this reset pin is pulled up by default. Let's drive it low as early as we - * can. + * can. Scarlet uses a different WiFi chip that doesn't have this pin anymore. */ -static void deassert_wifi_power(void) +static void assert_wifi_reset(void) { - gpio_output(GPIO(1, B, 3), 0); /* Assert WLAN_MODULE_RST# */ + gpio_output(GPIO_WLAN_RST_L, 0); /* Assert WLAN_MODULE_RST# */ } static void configure_emmc(void) @@ -234,11 +234,21 @@ static void configure_codec(void) static void configure_display(void) { - /* set pinmux for edp HPD*/ - gpio_input_pulldown(GPIO(4, C, 7)); - write32(&rk3399_grf->iomux_edp_hotplug, IOMUX_EDP_HOTPLUG); - - gpio_output(GPIO(4, D, 3), 1); /* CPU3_EDP_VDDEN for P3.3V_DISP */ + if (IS_ENABLED(CONFIG_BOARD_GOOGLE_SCARLET)) { + gpio_output(GPIO(4, D, 1), 0); /* DISPLAY_RST_L */ + gpio_output(GPIO(4, D, 3), 1); /* PPVARP_LCD */ + mdelay(10); + gpio_output(GPIO(4, D, 4), 1); /* PPVARN_LCD */ + mdelay(20 + 2); /* add 2ms for bias rise time */ + gpio_output(GPIO(4, D, 1), 1); /* DISPLAY_RST_L */ + mdelay(30); + } else { + /* set pinmux for edp HPD */ + gpio_input_pulldown(GPIO(4, C, 7)); + write32(&rk3399_grf->iomux_edp_hotplug, IOMUX_EDP_HOTPLUG); + + gpio_output(GPIO(4, D, 3), 1); /* P3.3V_DISP */ + } } static void usb_power_cycle(int port) @@ -321,18 +331,20 @@ static void setup_usb(int port) static void mainboard_init(device_t dev) { - deassert_wifi_power(); - configure_touchpad(); configure_sdmmc(); configure_emmc(); configure_codec(); - configure_display(); + if (display_init_required()) + configure_display(); setup_usb(0); - if (!IS_ENABLED(CONFIG_BOARD_GOOGLE_SCARLET)) - setup_usb(1); + if (!IS_ENABLED(CONFIG_BOARD_GOOGLE_SCARLET)) { + assert_wifi_reset(); /* Scarlet: no WIFI_PD# line */ + configure_touchpad(); /* Scarlet: works differently */ + setup_usb(1); /* Scarlet: only one USB port */ + register_gpio_suspend(); /* Scarlet: all EC-controlled */ + } register_reset_to_bl31(); register_poweroff_to_bl31(); - register_gpio_suspend(); register_apio_suspend(); } diff --git a/src/mainboard/google/gru/pwm_regulator.c b/src/mainboard/google/gru/pwm_regulator.c index b85f41ff45..696f09a206 100644 --- a/src/mainboard/google/gru/pwm_regulator.c +++ b/src/mainboard/google/gru/pwm_regulator.c @@ -47,10 +47,23 @@ int pwm_design_voltage[][2] = { [PWM_REGULATOR_CENTERLOG] = {7994, 10499} }; +int pwm_enum_to_pwm_number[] = { + [PWM_REGULATOR_GPU] = 0, + [PWM_REGULATOR_LIT] = 2, +#if IS_ENABLED(CONFIG_BOARD_GOOGLE_SCARLET) + [PWM_REGULATOR_BIG] = 3, + [PWM_REGULATOR_CENTERLOG] = -1, /* fixed regulator on Scarlet */ +#else + [PWM_REGULATOR_BIG] = 1, + [PWM_REGULATOR_CENTERLOG] = 3, +#endif +}; + void pwm_regulator_configure(enum pwm_regulator pwm, int millivolt) { int duty_ns, voltage_max, voltage_min; int voltage = millivolt * 10; /* for higer calculation accuracy */ + int pwm_number = pwm_enum_to_pwm_number[pwm]; voltage_min = pwm_design_voltage[pwm][0]; voltage_max = pwm_design_voltage[pwm][1]; @@ -75,24 +88,26 @@ void pwm_regulator_configure(enum pwm_regulator pwm, int millivolt) duty_ns = PWM_PERIOD * (voltage_max - voltage) / (voltage_max - voltage_min); - pwm_init(pwm, PWM_PERIOD, duty_ns); + pwm_init(pwm_number, PWM_PERIOD, duty_ns); - switch (pwm) { - case PWM_REGULATOR_GPU: + switch (pwm_number) { + case 0: gpio_input(GPIO(4, C, 2)); /* PWM0 remove pull-down */ write32(&rk3399_grf->iomux_pwm_0, IOMUX_PWM_0); break; - case PWM_REGULATOR_BIG: + case 1: gpio_input(GPIO(4, C, 6)); /* PWM1 remove pull-down */ write32(&rk3399_grf->iomux_pwm_1, IOMUX_PWM_1); break; - case PWM_REGULATOR_LIT: + case 2: gpio_input(GPIO(1, C, 3)); /* PWM2 remove pull-down */ write32(&rk3399_pmugrf->iomux_pwm_2, IOMUX_PWM_2); break; - case PWM_REGULATOR_CENTERLOG: + case 3: gpio_input(GPIO(0, A, 6)); /* PWM3 remove pull-down */ write32(&rk3399_pmugrf->iomux_pwm_3a, IOMUX_PWM_3_A); break; + default: + die("incorrect board configuration"); } } diff --git a/src/mainboard/google/gru/romstage.c b/src/mainboard/google/gru/romstage.c index d644f7d7c2..bde61b28aa 100644 --- a/src/mainboard/google/gru/romstage.c +++ b/src/mainboard/google/gru/romstage.c @@ -33,6 +33,7 @@ #include <soc/usb.h> #include <stdlib.h> +#include "board.h" #include "pwm_regulator.h" static void init_dvs_outputs(void) @@ -40,10 +41,11 @@ static void init_dvs_outputs(void) pwm_regulator_configure(PWM_REGULATOR_GPU, 900); pwm_regulator_configure(PWM_REGULATOR_BIG, 900); - /* Kevin's logic rail has some ripple, so up the voltage a bit */ + /* Kevin's logic rail has some ripple, so up the voltage a bit. Scarlet + uses a fixed 900mV regulator for centerlogic. */ if (IS_ENABLED(CONFIG_BOARD_GOOGLE_KEVIN)) pwm_regulator_configure(PWM_REGULATOR_CENTERLOG, 925); - else + else if (!IS_ENABLED(CONFIG_BOARD_GOOGLE_SCARLET)) pwm_regulator_configure(PWM_REGULATOR_CENTERLOG, 900); /* Allow time for the regulators to settle */ @@ -52,9 +54,8 @@ static void init_dvs_outputs(void) static void prepare_sdmmc(void) { - /* Enable main SD rail early to allow ramp time before enabling SDIO - * rail. */ - gpio_output(GPIO(4, D, 5), 1); /* SDMMC_PWR_EN */ + /* Enable main SD rail early to allow ramp time before powering SDIO. */ + gpio_output(GPIO_SDMMC_PWR, 1); } static void prepare_usb(void) |