/* * This file is part of the coreboot project. * * Copyright 2014 Rockchip 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. */ #include <arch/cache.h> #include <arch/io.h> #include <boot/coreboot_tables.h> #include <console/console.h> #include <delay.h> #include <device/device.h> #include <device/i2c.h> #include <edid.h> #include <elog.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 "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_vop(void) { write32(&rk3288_grf->iomux_lcdc, IOMUX_LCDC); /* lcdc(vop) iodomain select 1.8V */ write32(&rk3288_grf->io_vsel, RK_SETBITS(1 << 0)); } static void configure_hdmi(void) { rk808_configure_switch(2, 1); /* VCC18_LCD (HDMI_AVDD_1V8) */ rk808_configure_ldo(7, 1000); /* VDD10_LCD (HDMI_AVDD_1V0) */ rk808_configure_switch(1, 1); /* VCC33_LCD */ /* set POWER_HDMI_ON */ gpio_output(GPIO(7, A, 2), 1); /* HDMI I2C */ write32(&rk3288_grf->iomux_i2c5sda, IOMUX_HDMI_EDP_I2C_SDA); write32(&rk3288_grf->iomux_i2c5scl, IOMUX_HDMI_EDP_I2C_SCL); } static void mainboard_init(device_t dev) { gpio_output(GPIO_RESET, 0); configure_usb(); configure_emmc(); configure_codec(); configure_vop(); configure_hdmi(); elog_init(); elog_add_watchdog_reset(); elog_add_boot_reason(); } static void mainboard_enable(device_t 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_TAB_DMA; dma->size = sizeof(*dma); dma->range_start = (uintptr_t)_dma_coherent; dma->range_size = _dma_coherent_size; } void mainboard_power_on_backlight(void) { return; }