src/mainboard/google/veyron/mainboard.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <device/mmio.h>
   4 #include <boot/coreboot_tables.h>
   5 #include <delay.h>
   6 #include <device/device.h>
   7 #include <device/i2c_simple.h>
   8 #include <edid.h>
   9 #include <gpio.h>
  10 #include <soc/display.h>
  11 #include <soc/grf.h>
  12 #include <soc/soc.h>
  13 #include <soc/pmu.h>
  14 #include <soc/clock.h>
  15 #include <soc/rk808.h>
  16 #include <soc/spi.h>
  17 #include <soc/i2c.h>
  18 #include <symbols.h>
  19
  20 #include "board.h"
  21
  22 static void configure_usb(void)
  23 {
  24         gpio_output(GPIO(0, B, 3), 1);                  /* HOST1_PWR_EN */
  25         gpio_output(GPIO(0, B, 4), 1);                  /* USBOTG_PWREN_H */
  26         gpio_output(GPIO(7, C, 5), 1);                  /* 5V_DRV */
  27 }
  28
  29 static void configure_sdmmc(void)
  30 {
  31         write32(&rk3288_grf->iomux_sdmmc0, IOMUX_SDMMC0);
  32
  33         /* use sdmmc0 io, disable JTAG function */
  34         write32(&rk3288_grf->soc_con0, RK_CLRBITS(1 << 12));
  35
  36         /* Note: these power rail definitions are copied in romstage.c */
  37         rk808_configure_ldo(4, 3300); /* VCCIO_SD */
  38         rk808_configure_ldo(5, 3300); /* VCC33_SD */
  39
  40         gpio_input(GPIO(7, A, 5));              /* SD_DET */
  41 }
  42
  43 static void configure_emmc(void)
  44 {
  45         write32(&rk3288_grf->iomux_emmcdata, IOMUX_EMMCDATA);
  46         write32(&rk3288_grf->iomux_emmcpwren, IOMUX_EMMCPWREN);
  47         write32(&rk3288_grf->iomux_emmccmd, IOMUX_EMMCCMD);
  48
  49         gpio_output(GPIO(2, B, 1), 1);          /* EMMC_RST_L */
  50 }
  51
  52 static void configure_codec(void)
  53 {
  54         write32(&rk3288_grf->iomux_i2c2, IOMUX_I2C2);   /* CODEC I2C */
  55         i2c_init(2, 400*KHz);                           /* CODEC I2C */
  56
  57         write32(&rk3288_grf->iomux_i2s, IOMUX_I2S);
  58         write32(&rk3288_grf->iomux_i2sclk, IOMUX_I2SCLK);
  59
  60         rk808_configure_ldo(6, 1800);   /* VCC18_CODEC */
  61
  62         /* AUDIO IO domain 1.8V voltage selection */
  63         write32(&rk3288_grf->io_vsel, RK_SETBITS(1 << 6));
  64         rkclk_configure_i2s(12288000);
  65 }
  66
  67 static void configure_vop(void)
  68 {
  69         write32(&rk3288_grf->iomux_lcdc, IOMUX_LCDC);
  70
  71         /* lcdc(vop) iodomain select 1.8V */
  72         write32(&rk3288_grf->io_vsel, RK_SETBITS(1 << 0));
  73
  74         gpio_output(GPIO(2, B, 5), 1);  /* AVDD_1V8_DISP_EN */
  75         rk808_configure_ldo(7, 2500);   /* VCC10_LCD_PWREN_H */
  76         gpio_output(GPIO(7, B, 6), 1);  /* LCD_EN */
  77         rk808_configure_switch(1, 1);   /* VCC33_LCD */
  78
  79         /* enable edp HPD */
  80         gpio_input_pulldown(GPIO(7, B, 3));
  81         write32(&rk3288_grf->iomux_edp_hotplug, IOMUX_EDP_HOTPLUG);
  82 }
  83
  84 static void mainboard_init(struct device *dev)
  85 {
  86         gpio_output(GPIO_RESET, 0);
  87
  88         configure_usb();
  89         configure_sdmmc();
  90         configure_emmc();
  91         configure_codec();
  92         configure_vop();
  93 }
  94
  95 static void mainboard_enable(struct device *dev)
  96 {
  97         dev->ops->init = &mainboard_init;
  98 }
  99
 100 struct chip_operations mainboard_ops = {
 101         .enable_dev = mainboard_enable,
 102 };
 103
 104 void lb_board(struct lb_header *header)
 105 {
 106         struct lb_range *dma;
 107
 108         dma = (struct lb_range *)lb_new_record(header);
 109         dma->tag = LB_TAG_DMA;
 110         dma->size = sizeof(*dma);
 111         dma->range_start = (uintptr_t)_dma_coherent;
 112         dma->range_size = REGION_SIZE(dma_coherent);
 113 }
 114
 115 void mainboard_power_on_backlight(void)
 116 {
 117         gpio_output(GPIO(2, B, 4), 1);  /* BL_PWR_EN */
 118         mdelay(120);
 119         gpio_output(GPIO(7, A, 0), 1);  /* LCD_BL */
 120         mdelay(10);
 121         gpio_output(GPIO_BACKLIGHT, 1); /* BL_EN */
 122 }