| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright 2014 Google Inc. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include <arch/mmu.h> |
| #include <boot/coreboot_tables.h> |
| #include <device/device.h> |
| #include <memrange.h> |
| #include <soc/addressmap.h> |
| #include <soc/clk_rst.h> |
| #include <soc/clock.h> |
| #include <soc/funitcfg.h> |
| #include <soc/nvidia/tegra/i2c.h> |
| #include <soc/nvidia/tegra/usb.h> |
| #include <soc/padconfig.h> |
| #include <soc/spi.h> |
| |
| static const struct pad_config sdmmc3_pad[] = { |
| /* MMC3(SDCARD) */ |
| PAD_CFG_SFIO(SDMMC3_CLK, PINMUX_INPUT_ENABLE, SDMMC3), |
| PAD_CFG_SFIO(SDMMC3_CMD, PINMUX_INPUT_ENABLE | PINMUX_PULL_UP, SDMMC3), |
| PAD_CFG_SFIO(SDMMC3_DAT0, PINMUX_INPUT_ENABLE | PINMUX_PULL_UP, SDMMC3), |
| PAD_CFG_SFIO(SDMMC3_DAT1, PINMUX_INPUT_ENABLE | PINMUX_PULL_UP, SDMMC3), |
| PAD_CFG_SFIO(SDMMC3_DAT2, PINMUX_INPUT_ENABLE | PINMUX_PULL_UP, SDMMC3), |
| PAD_CFG_SFIO(SDMMC3_DAT3, PINMUX_INPUT_ENABLE | PINMUX_PULL_UP, SDMMC3), |
| PAD_CFG_SFIO(SDMMC3_CLK_LB_IN, PINMUX_INPUT_ENABLE | PINMUX_PULL_UP, SDMMC3), |
| PAD_CFG_SFIO(SDMMC3_CLK_LB_OUT, PINMUX_INPUT_ENABLE | PINMUX_PULL_DOWN, SDMMC3), |
| /* MMC3 Card Detect pin */ |
| PAD_CFG_GPIO_INPUT(SDMMC3_CD_N, PINMUX_PULL_UP), |
| /* Disable SD card reader power so it can be reset even on warm boot. |
| Payloads must enable power before accessing SD card slots. */ |
| PAD_CFG_GPIO_OUT0(KB_ROW0, PINMUX_PULL_NONE), |
| }; |
| |
| static const struct pad_config sdmmc4_pad[] = { |
| /* MMC4 (eMMC) */ |
| PAD_CFG_SFIO(SDMMC4_CLK, PINMUX_INPUT_ENABLE, SDMMC4), |
| PAD_CFG_SFIO(SDMMC4_CMD, PINMUX_INPUT_ENABLE | PINMUX_PULL_UP, SDMMC4), |
| PAD_CFG_SFIO(SDMMC4_DAT0, PINMUX_INPUT_ENABLE | PINMUX_PULL_UP, SDMMC4), |
| PAD_CFG_SFIO(SDMMC4_DAT1, PINMUX_INPUT_ENABLE | PINMUX_PULL_UP, SDMMC4), |
| PAD_CFG_SFIO(SDMMC4_DAT2, PINMUX_INPUT_ENABLE | PINMUX_PULL_UP, SDMMC4), |
| PAD_CFG_SFIO(SDMMC4_DAT3, PINMUX_INPUT_ENABLE | PINMUX_PULL_UP, SDMMC4), |
| PAD_CFG_SFIO(SDMMC4_DAT4, PINMUX_INPUT_ENABLE | PINMUX_PULL_UP, SDMMC4), |
| PAD_CFG_SFIO(SDMMC4_DAT5, PINMUX_INPUT_ENABLE | PINMUX_PULL_UP, SDMMC4), |
| PAD_CFG_SFIO(SDMMC4_DAT6, PINMUX_INPUT_ENABLE | PINMUX_PULL_UP, SDMMC4), |
| PAD_CFG_SFIO(SDMMC4_DAT7, PINMUX_INPUT_ENABLE | PINMUX_PULL_UP, SDMMC4), |
| }; |
| |
| static const struct pad_config padcfgs[] = { |
| /* We pull the USB VBUS signals up but keep them as inputs since the |
| * voltage source likes to drive them low on overcurrent conditions */ |
| PAD_CFG_GPIO_INPUT(USB_VBUS_EN0, PINMUX_PULL_UP), |
| PAD_CFG_GPIO_INPUT(USB_VBUS_EN1, PINMUX_PULL_UP), |
| }; |
| |
| static const struct pad_config i2c1_pad[] = { |
| /* GEN1 I2C */ |
| PAD_CFG_SFIO(GEN1_I2C_SCL, PINMUX_INPUT_ENABLE, I2C1), |
| PAD_CFG_SFIO(GEN1_I2C_SDA, PINMUX_INPUT_ENABLE, I2C1), |
| }; |
| |
| static const struct funit_cfg funitcfgs[] = { |
| FUNIT_CFG(SDMMC3, PLLP, 48000, sdmmc3_pad, ARRAY_SIZE(sdmmc3_pad)), |
| FUNIT_CFG(SDMMC4, PLLP, 48000, sdmmc4_pad, ARRAY_SIZE(sdmmc4_pad)), |
| FUNIT_CFG(I2C1, PLLP, 100, i2c1_pad, ARRAY_SIZE(i2c1_pad)), |
| }; |
| |
| static void setup_ec_spi(void) |
| { |
| struct tegra_spi_channel *spi; |
| |
| spi = tegra_spi_init(CONFIG_EC_GOOGLE_CHROMEEC_SPI_BUS); |
| } |
| |
| static void setup_usb(void) |
| { |
| clock_enable_clear_reset(CLK_L_USBD, CLK_H_USB3, 0, 0, 0, 0); |
| |
| usb_setup_utmip((void *)TEGRA_USBD_BASE); |
| usb_setup_utmip((void *)TEGRA_USB3_BASE); |
| } |
| |
| /* Audio init: clocks and enables/resets */ |
| static void setup_audio(void) |
| { |
| /* External peripheral 1: audio codec (max98090) using 12MHz CLK1 */ |
| clock_configure_source(extperiph1, CLK_M, 12000); |
| |
| /* |
| * We need 1.5MHz for I2S1. So, we use CLK_M. CLK_DIVIDER macro |
| * returns a divisor (0xe) a little bit off from the ideal value (0xd), |
| * but it's good enough for beeps. |
| */ |
| clock_configure_source(i2s1, CLK_M, 1500); |
| |
| clock_external_output(1); /* For external MAX98090 audio codec. */ |
| |
| /* |
| * Confirmed by NVIDIA hardware team, we need to take ALL audio devices |
| * connected to AHUB (AUDIO, APBIF, I2S, DAM, AMX, ADX, SPDIF, AFC) out |
| * of reset and clock-enabled, otherwise reading AHUB devices (in our |
| * case, I2S/APBIF/AUDIO<XBAR>) will hang. |
| */ |
| clock_enable_audio(); |
| } |
| |
| static void mainboard_init(device_t dev) |
| { |
| soc_configure_pads(padcfgs, ARRAY_SIZE(padcfgs)); |
| soc_configure_funits(funitcfgs, ARRAY_SIZE(funitcfgs)); |
| |
| setup_ec_spi(); |
| setup_usb(); |
| |
| setup_audio(); |
| i2c_init(I2C1_BUS); /* for max98090 codec */ |
| } |
| |
| static void mainboard_enable(device_t dev) |
| { |
| dev->ops->init = &mainboard_init; |
| } |
| |
| struct chip_operations mainboard_ops = { |
| .name = "rush", |
| .enable_dev = mainboard_enable, |
| }; |