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/*
* This file is part of the coreboot project.
*
* Copyright 2018 Google LLC
*
* 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 <ec/google/chromeec/ec.h>
#include <baseboard/variants.h>
#include <cbfs.h>
#include <gpio.h>
#include <smbios.h>
#include <variant/gpio.h>
#include <device/pci.h>
#include <device/pci_ops.h>
#include <drivers/generic/bayhub/bh720.h>
uint8_t variant_board_sku(void)
{
static int sku = -1;
if (sku == -1)
sku = google_chromeec_get_sku_id();
return sku;
}
void variant_mainboard_suspend_resume(void)
{
/* Enable backlight - GPIO 133 active low */
gpio_set(GPIO_133, 0);
}
void board_bh720(struct device *dev)
{
u32 sdbar;
u32 bh720_pcr_data;
sdbar = pci_read_config32(dev, PCI_BASE_ADDRESS_1);
/* Enable Memory Access Function */
write32((void *)(sdbar + BH720_MEM_ACCESS_EN), 0x40000000);
write32((void *)(sdbar + BH720_MEM_RW_DATA), 0x80000000);
write32((void *)(sdbar + BH720_MEM_RW_ADR), 0x800000D0);
/* Set EMMC VCCQ 1.8V PCR 0x308[4] */
write32((void *)(sdbar + BH720_MEM_RW_ADR),
BH720_MEM_RW_READ | BH720_PCR_EMMC_SETTING);
bh720_pcr_data = read32((void *)(sdbar + BH720_MEM_RW_DATA));
write32((void *)(sdbar + BH720_MEM_RW_DATA),
bh720_pcr_data | BH720_PCR_EMMC_SETTING_1_8V);
write32((void *)(sdbar + BH720_MEM_RW_ADR),
BH720_MEM_RW_WRITE | BH720_PCR_EMMC_SETTING);
/* Set Bayhub SD base CLK 50MHz: case#1 PCR 0x3E4[22] = 0 */
write32((void *)(sdbar + BH720_MEM_RW_ADR),
BH720_MEM_RW_READ | BH720_PCR_CSR);
bh720_pcr_data = read32((void *)(sdbar + BH720_MEM_RW_DATA));
write32((void *)(sdbar + BH720_MEM_RW_DATA),
bh720_pcr_data & ~BH720_PCR_CSR_EMMC_MODE_SEL);
write32((void *)(sdbar + BH720_MEM_RW_ADR),
BH720_MEM_RW_WRITE | BH720_PCR_CSR);
/* Disable Memory Access */
write32((void *)(sdbar + BH720_MEM_RW_DATA), 0x80000001);
write32((void *)(sdbar + BH720_MEM_RW_ADR), 0x800000D0);
write32((void *)(sdbar + BH720_MEM_ACCESS_EN), 0x80000000);
}
const char *smbios_mainboard_manufacturer(void)
{
static char oem_bin_data[11];
static const char *manuf;
if (!IS_ENABLED(CONFIG_USE_OEM_BIN))
return CONFIG_MAINBOARD_SMBIOS_MANUFACTURER;
if (manuf)
return manuf;
if (cbfs_boot_load_file("oem.bin", oem_bin_data,
sizeof(oem_bin_data) - 1,
CBFS_TYPE_RAW))
manuf = &oem_bin_data[0];
else
manuf = CONFIG_MAINBOARD_SMBIOS_MANUFACTURER;
return manuf;
}
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