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