/* SPDX-License-Identifier: GPL-2.0-only */ #include <device/mmio.h> #include <boot/coreboot_tables.h> #include <delay.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 "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)); /* Note: these power rail definitions are copied in romstage.c */ rk808_configure_ldo(4, 3300); /* VCCIO_SD */ rk808_configure_ldo(5, 3300); /* VCC33_SD */ gpio_input(GPIO(7, A, 5)); /* SD_DET */ } 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)); gpio_output(GPIO(2, B, 5), 1); /* AVDD_1V8_DISP_EN */ rk808_configure_ldo(7, 2500); /* VCC10_LCD_PWREN_H */ gpio_output(GPIO(7, B, 6), 1); /* LCD_EN */ rk808_configure_switch(1, 1); /* VCC33_LCD */ /* enable edp HPD */ gpio_input_pulldown(GPIO(7, B, 3)); write32(&rk3288_grf->iomux_edp_hotplug, IOMUX_EDP_HOTPLUG); } static void mainboard_init(struct device *dev) { gpio_output(GPIO_RESET, 0); configure_usb(); configure_sdmmc(); configure_emmc(); configure_codec(); configure_vop(); } 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) { gpio_output(GPIO(2, B, 4), 1); /* BL_PWR_EN */ mdelay(120); gpio_output(GPIO(7, A, 0), 1); /* LCD_BL */ mdelay(10); gpio_output(GPIO_BACKLIGHT, 1); /* BL_EN */ }