Files
system76-coreboot/src/mainboard/google/kukui/bootblock.c
Hung-Te Lin 1be16f08f2 google/kukui: Enable eMMC in bootblock.
On kukui board, the eMMC is routed to EC for boot ROM emulation when
loading bootblock, and should be set back to real eMMC as early as
possible after bootblock is loaded.

BUG=b:80501386
TEST=make; boots and verified BOOTBLOCK_EN_L GPIO is enabled.
BRANCH=None

Change-Id: Ifefb2e26ed048c38595907cc0875757410129828
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://review.coreboot.org/27601
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-07-30 18:50:09 +00:00

30 lines
849 B
C

/*
* This file is part of the coreboot project.
*
* Copyright 2018 MediaTek 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 <bootblock_common.h>
#include <gpio.h>
#include <soc/gpio.h>
#include <soc/spi.h>
#define BOOTBLOCK_EN_L (GPIO(KPROW0))
void bootblock_mainboard_init(void)
{
/* Turn on real eMMC. */
gpio_output(BOOTBLOCK_EN_L, 1);
mtk_spi_init(CONFIG_BOOT_DEVICE_SPI_FLASH_BUS, SPI_PAD0_MASK, 26 * MHz);
}