| /* |
| * 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. |
| */ |
| |
| #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, 3), 1); /* HOST1_PWR_EN */ |
| gpio_output(GPIO(0, B, 4), 1); /* USBOTG_PWREN_H */ |
| gpio_output(GPIO(7, C, 5), 1); /* 5V_DRV */ |
| } |
| |
| static void configure_sdmmc(void) |
| { |
| write32(&rk3288_grf->iomux_sdmmc0, IOMUX_SDMMC0); |
| |
| /* use sdmmc0 io, disable JTAG function */ |
| write32(&rk3288_grf->soc_con0, RK_CLRBITS(1 << 12)); |
| |
| sdmmc_power_on(); |
| |
| gpio_input(GPIO(7, A, 5)); /* SDMMC_DET_L */ |
| } |
| |
| 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)); |
| |
| /* |
| * BL_EN gates VCC_LCD. This might be changed in future revisions |
| * of the board so that the display can be stablized before we |
| * turn on the backlight. |
| * |
| * To minimize display corruption, turn off LCDC_BL before |
| * powering on the backlight. |
| */ |
| switch (board_id()) { |
| case 0: |
| gpio_output(GPIO(7, A, 3), 1); |
| break; |
| default: |
| gpio_output(GPIO(7, A, 2), 1); |
| break; |
| } |
| |
| gpio_output(GPIO_LCDC_BL, 0); |
| rk808_configure_switch(1, 1); /* VCC33_LCD */ |
| |
| /* EDP_HPD setup */ |
| switch (board_id()) { |
| case 0: |
| /* not present */ |
| break; |
| default: |
| /* Unlike other Veyrons, Danger has external pull resistors on |
| * EDP_HPD. Default for GPIO(7, B, 3) is pull-down, set to |
| * float. |
| */ |
| gpio_input(GPIO(7, B, 3)); |
| write32(&rk3288_grf->iomux_edp_hotplug, IOMUX_EDP_HOTPLUG); |
| break; |
| } |
| } |
| |
| 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) */ |
| |
| /* set POWER_HDMI_EN */ |
| switch (board_id()) { |
| case 0: |
| gpio_output(GPIO(7, A, 2), 1); |
| break; |
| default: |
| gpio_output(GPIO(5, C, 3), 1); |
| break; |
| } |
| } |
| |
| static void mainboard_init(device_t dev) |
| { |
| gpio_output(GPIO_RESET, 0); |
| |
| configure_usb(); |
| configure_sdmmc(); |
| 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) |
| { |
| gpio_output(GPIO_LCDC_BL, 1); |
| } |