| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <device/mmio.h> |
| #include <boot/coreboot_tables.h> |
| #include <console/console.h> |
| #include <device/device.h> |
| #include <device/i2c_simple.h> |
| #include <edid.h> |
| #include <gpio.h> |
| #include <soc/display.h> |
| #include <soc/grf.h> |
| #include <soc/soc.h> |
| #include <soc/pmu.h> |
| #include <soc/clock.h> |
| #include <soc/rk808.h> |
| #include <soc/spi.h> |
| #include <soc/i2c.h> |
| #include <symbols.h> |
| #include <vbe.h> |
| #include <vendorcode/google/chromeos/chromeos.h> |
| #include <security/vboot/vboot_common.h> |
| |
| #include "board.h" |
| |
| static void configure_usb(void) |
| { |
| gpio_output(GPIO(0, B, 4), 1); /* USB2_PWR_EN */ |
| } |
| |
| static void configure_emmc(void) |
| { |
| write32(&rk3288_grf->iomux_emmcdata, IOMUX_EMMCDATA); |
| write32(&rk3288_grf->iomux_emmcpwren, IOMUX_EMMCPWREN); |
| write32(&rk3288_grf->iomux_emmccmd, IOMUX_EMMCCMD); |
| |
| gpio_output(GPIO(2, B, 1), 1); /* EMMC_RST_L */ |
| } |
| |
| static void configure_codec(void) |
| { |
| write32(&rk3288_grf->iomux_i2c2, IOMUX_I2C2); /* CODEC I2C */ |
| i2c_init(2, 400*KHz); /* CODEC I2C */ |
| |
| write32(&rk3288_grf->iomux_i2s, IOMUX_I2S); |
| write32(&rk3288_grf->iomux_i2sclk, IOMUX_I2SCLK); |
| |
| rk808_configure_ldo(6, 1800); /* VCC18_CODEC */ |
| |
| /* AUDIO IO domain 1.8V voltage selection */ |
| write32(&rk3288_grf->io_vsel, RK_SETBITS(1 << 6)); |
| rkclk_configure_i2s(12288000); |
| } |
| |
| static void configure_3g(void) |
| { |
| /* Force 3G modem off to avoid confusing the EHCI host and |
| * causing problems during enumeration/init */ |
| gpio_output(GPIO(5, C, 1), 1); /* 3G_SHUTDOWN */ |
| gpio_output(GPIO(4, D, 2), 0); /* 3G_ON_OFF */ |
| } |
| |
| static void mainboard_init(struct device *dev) |
| { |
| gpio_output(GPIO_RESET, 0); |
| |
| configure_usb(); |
| configure_emmc(); |
| configure_codec(); |
| configure_3g(); |
| /* No video. */ |
| |
| /* If recovery mode is detected, reduce frequency and voltage to reduce |
| * heat in case machine is left unattended. chrome-os-partner:41201. */ |
| if (vboot_recovery_mode_enabled()) { |
| printk(BIOS_DEBUG, "Reducing APLL freq for recovery mode.\n"); |
| rkclk_configure_cpu(APLL_600_MHZ); |
| rk808_configure_buck(1, 900); |
| } |
| } |
| |
| static void mainboard_enable(struct device *dev) |
| { |
| dev->ops->init = &mainboard_init; |
| } |
| |
| struct chip_operations mainboard_ops = { |
| .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_TAG_DMA; |
| dma->size = sizeof(*dma); |
| dma->range_start = (uintptr_t)_dma_coherent; |
| dma->range_size = REGION_SIZE(dma_coherent); |
| } |
| |
| void mainboard_power_on_backlight(void) |
| { |
| return; |
| } |