diff options
Diffstat (limited to 'src/mainboard/google/nyan/mainboard.c')
| -rw-r--r-- | src/mainboard/google/nyan/mainboard.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/src/mainboard/google/nyan/mainboard.c b/src/mainboard/google/nyan/mainboard.c index c7258ff12d..a25c91cf5d 100644 --- a/src/mainboard/google/nyan/mainboard.c +++ b/src/mainboard/google/nyan/mainboard.c @@ -17,9 +17,47 @@ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ +#include <arch/io.h> #include <device/device.h> #include <boot/coreboot_tables.h> +#include <soc/addressmap.h> +#include <soc/clock.h> +#include <soc/nvidia/tegra/i2c.h> +#include <soc/nvidia/tegra124/clk_rst.h> #include <soc/nvidia/tegra124/gpio.h> +#include <soc/nvidia/tegra124/pmc.h> +#include <soc/nvidia/tegra124/spi.h> +#include <soc/nvidia/tegra124/usb.h> + +static struct clk_rst_ctlr *clk_rst = (void *)TEGRA_CLK_RST_BASE; + +static void set_clock_sources(void) +{ + clock_configure_source(i2c1, CLK_M, 1333); + clock_configure_source(i2c2, CLK_M, 1333); + clock_configure_source(i2c3, CLK_M, 1333); + clock_configure_source(i2c4, CLK_M, 1333); + + clock_configure_source(sbc1, PLLP, 5000); + + /* + * MMC3 and MMC4: Set base clock frequency for SD Clock to Tegra MMC's + * maximum speed (48MHz) so we can change SDCLK by second stage divisor + * in payloads, without touching base clock. + */ + clock_configure_source(sdmmc3, PLLP, 48000); + clock_configure_source(sdmmc4, PLLP, 48000); + + /* PLLP and PLLM are switched for HOST1x for no apparent reason. */ + write32(4 /* PLLP! */ << CLK_SOURCE_SHIFT | + /* TODO(rminnich): The divisor isn't accurate enough to get to + * 144MHz (it goes to 163 instead). What should we do here? */ + CLK_DIVIDER(TEGRA_PLLP_KHZ, 144000), + &clk_rst->clk_src_host1x); + + /* DISP1 doesn't support a divisor. Use PLLC which runs at 600MHz. */ + clock_configure_source(disp1, PLLC, 600000); +} static void setup_pinmux(void) { @@ -52,11 +90,139 @@ static void setup_pinmux(void) pinmux_set_config(PINMUX_ULPI_STP_INDEX, PINMUX_ULPI_STP_FUNC_SPI1 | PINMUX_PULL_NONE | PINMUX_INPUT_ENABLE); + + // I2C1 clock. + pinmux_set_config(PINMUX_GEN1_I2C_SCL_INDEX, + PINMUX_GEN1_I2C_SCL_FUNC_I2C1 | PINMUX_INPUT_ENABLE); + // I2C1 data. + pinmux_set_config(PINMUX_GEN1_I2C_SDA_INDEX, + PINMUX_GEN1_I2C_SDA_FUNC_I2C1 | PINMUX_INPUT_ENABLE); + // I2C2 clock. + pinmux_set_config(PINMUX_GEN2_I2C_SCL_INDEX, + PINMUX_GEN2_I2C_SCL_FUNC_I2C2 | PINMUX_INPUT_ENABLE); + // I2C2 data. + pinmux_set_config(PINMUX_GEN2_I2C_SDA_INDEX, + PINMUX_GEN2_I2C_SDA_FUNC_I2C2 | PINMUX_INPUT_ENABLE); + // I2C3 (cam) clock. + pinmux_set_config(PINMUX_CAM_I2C_SCL_INDEX, + PINMUX_CAM_I2C_SCL_FUNC_I2C3 | PINMUX_INPUT_ENABLE); + // I2C3 (cam) data. + pinmux_set_config(PINMUX_CAM_I2C_SDA_INDEX, + PINMUX_CAM_I2C_SDA_FUNC_I2C3 | PINMUX_INPUT_ENABLE); + // I2C4 (DDC) clock. + pinmux_set_config(PINMUX_DDC_SCL_INDEX, + PINMUX_DDC_SCL_FUNC_I2C4 | PINMUX_INPUT_ENABLE); + // I2C4 (DDC) data. + pinmux_set_config(PINMUX_DDC_SDA_INDEX, + PINMUX_DDC_SDA_FUNC_I2C4 | PINMUX_INPUT_ENABLE); + + // TODO(hungte) Revice pinmux setup, make nice little SoC functions for + // every single logical thing instead of dumping a wall of code below. + uint32_t pin_up = PINMUX_PULL_UP | PINMUX_INPUT_ENABLE, + pin_up3 = (PINMUX_PULL_UP | PINMUX_INPUT_ENABLE | + PINMUX_TRISTATE), + pin_down = PINMUX_PULL_DOWN | PINMUX_INPUT_ENABLE, + pin_none = PINMUX_PULL_NONE | PINMUX_INPUT_ENABLE; + + // MMC3 + pinmux_set_config(PINMUX_SDMMC3_CLK_INDEX, + PINMUX_SDMMC3_CLK_FUNC_SDMMC3 | pin_none); + pinmux_set_config(PINMUX_SDMMC3_CMD_INDEX, + PINMUX_SDMMC3_CMD_FUNC_SDMMC3 | pin_up); + pinmux_set_config(PINMUX_SDMMC3_DAT0_INDEX, + PINMUX_SDMMC3_DAT0_FUNC_SDMMC3 | pin_up); + pinmux_set_config(PINMUX_SDMMC3_DAT1_INDEX, + PINMUX_SDMMC3_DAT1_FUNC_SDMMC3 | pin_up); + pinmux_set_config(PINMUX_SDMMC3_DAT2_INDEX, + PINMUX_SDMMC3_DAT2_FUNC_SDMMC3 | pin_up); + pinmux_set_config(PINMUX_SDMMC3_DAT3_INDEX, + PINMUX_SDMMC3_DAT3_FUNC_SDMMC3 | pin_up); + pinmux_set_config(PINMUX_SDMMC3_CLK_LB_IN_INDEX, + PINMUX_SDMMC3_CLK_LB_IN_FUNC_SDMMC3 | pin_up3); + pinmux_set_config(PINMUX_SDMMC3_CLK_LB_OUT_INDEX, + PINMUX_SDMMC3_CLK_LB_OUT_FUNC_SDMMC3 | pin_down); + + // MMC3 Card Detect pin. + gpio_input_pullup(GPIO(V2)); + // Enable MMC power. + gpio_output(GPIO(R0), 1); + + // MMC4 + pinmux_set_config(PINMUX_SDMMC4_CLK_INDEX, + PINMUX_SDMMC4_CLK_FUNC_SDMMC4 | pin_none); + pinmux_set_config(PINMUX_SDMMC4_CMD_INDEX, + PINMUX_SDMMC4_CMD_FUNC_SDMMC4 | pin_up); + pinmux_set_config(PINMUX_SDMMC4_DAT0_INDEX, + PINMUX_SDMMC4_DAT0_FUNC_SDMMC4 | pin_up); + pinmux_set_config(PINMUX_SDMMC4_DAT1_INDEX, + PINMUX_SDMMC4_DAT1_FUNC_SDMMC4 | pin_up); + pinmux_set_config(PINMUX_SDMMC4_DAT2_INDEX, + PINMUX_SDMMC4_DAT2_FUNC_SDMMC4 | pin_up); + pinmux_set_config(PINMUX_SDMMC4_DAT3_INDEX, + PINMUX_SDMMC4_DAT3_FUNC_SDMMC4 | pin_up); + pinmux_set_config(PINMUX_SDMMC4_DAT4_INDEX, + PINMUX_SDMMC4_DAT4_FUNC_SDMMC4 | pin_up); + pinmux_set_config(PINMUX_SDMMC4_DAT5_INDEX, + PINMUX_SDMMC4_DAT5_FUNC_SDMMC4 | pin_up); + pinmux_set_config(PINMUX_SDMMC4_DAT6_INDEX, + PINMUX_SDMMC4_DAT6_FUNC_SDMMC4 | pin_up); + pinmux_set_config(PINMUX_SDMMC4_DAT7_INDEX, + PINMUX_SDMMC4_DAT7_FUNC_SDMMC4 | pin_up); + + /* TODO: This is supposed to work with the USB special function pinmux, + * but it doesn't. Go with GPIOs for now and solve the problem later. */ + gpio_output_open_drain(GPIO(N4), 1); /* USB VBUS EN0 */ + gpio_output_open_drain(GPIO(N5), 1); /* USB VBUS EN1 */ +} + +static void setup_kernel_info(void) +{ + // Setup required information for Linux kernel. + + // pmc.odmdata: [18:19]: console type, [15:17]: UART id. + // TODO(hungte) This should be done by filling BCT values, or derived + // from CONFIG_CONSOLE_SERIAL_UART[A-E]. Right now we simply copy the + // value defined in BCT. + struct tegra_pmc_regs *pmc = (void*)TEGRA_PMC_BASE; + writel(0x80080000, &pmc->odmdata); +} + +static void setup_ec_spi(void) +{ + struct tegra_spi_channel *spi; + + spi = tegra_spi_init(CONFIG_EC_GOOGLE_CHROMEEC_SPI_BUS); + + /* Set frame header for use by CrOS EC */ + spi->frame_header = 0xec; + spi->rx_frame_header_enable = 1; } static void mainboard_init(device_t dev) { + set_clock_sources(); + clock_enable_clear_reset(CLK_L_GPIO | CLK_L_I2C1 | + CLK_L_SDMMC4 | CLK_L_USBD, + CLK_H_EMC | CLK_H_I2C2 | CLK_H_SBC1 | + CLK_H_PMC | CLK_H_MEM | CLK_H_USB3, + CLK_U_I2C3 | CLK_U_CSITE | CLK_U_SDMMC3, + CLK_V_I2C4, + CLK_W_DVFS); + + usb_setup_utmip1(); + /* USB2 is the camera, we don't need it in firmware */ + usb_setup_utmip3(); + setup_pinmux(); + + i2c_init(0); + i2c_init(1); + i2c_init(2); + i2c_init(3); + + setup_kernel_info(); + clock_init_arm_generic_timer(); + setup_ec_spi(); } static void mainboard_enable(device_t dev) @@ -68,3 +234,14 @@ struct chip_operations mainboard_ops = { .name = "nyan", .enable_dev = mainboard_enable, }; + +void lb_board(struct lb_header *header) +{ + struct lb_range *dma; + + dma = (struct lb_range *)lb_new_record(header); + dma->tag = LB_TAB_DMA; + dma->size = sizeof(*dma); + dma->range_start = CONFIG_DRAM_DMA_START; + dma->range_size = CONFIG_DRAM_DMA_SIZE; +} |