Files
system76-coreboot/src/mainboard/google/cherry/bootblock.c
Yidi Lin 19a1bad425 mb/google/cherry: Enable Chrome EC
Signed-off-by: Yidi Lin <yidi.lin@mediatek.com>
Change-Id: Iab3549b5c4e7d845ddd284a0df3fb448e11fbdcb
Reviewed-on: https://review.coreboot.org/c/coreboot/+/53899
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
2021-05-10 05:28:12 +00:00

43 lines
946 B
C

/* SPDX-License-Identifier: GPL-2.0-only */
#include <bootblock_common.h>
#include <device/mmio.h>
#include <soc/gpio.h>
#include <soc/spi.h>
#include "gpio.h"
struct pad_func {
u8 pin_id;
u8 func;
};
#define PAD_FUNC(name, func) {PAD_##name##_ID, PAD_##name##_FUNC_##func}
static void nor_set_gpio_pinmux(void)
{
const struct pad_func *ptr = NULL;
/* GPIO 140 ~ 143 */
struct pad_func nor_pinmux[] = {
PAD_FUNC(SPIM2_CSB, SPINOR_CS),
PAD_FUNC(SPIM2_CLK, SPINOR_CK),
PAD_FUNC(SPIM2_MO, SPINOR_IO0),
PAD_FUNC(SPIM2_MI, SPINOR_IO1),
};
ptr = nor_pinmux;
for (size_t i = 0; i < ARRAY_SIZE(nor_pinmux); i++) {
gpio_set_pull((gpio_t){.id = ptr[i].pin_id},
GPIO_PULL_ENABLE, GPIO_PULL_UP);
gpio_set_mode((gpio_t){.id = ptr[i].pin_id}, ptr[i].func);
}
}
void bootblock_mainboard_init(void)
{
mtk_spi_init(CONFIG_EC_GOOGLE_CHROMEEC_SPI_BUS, SPI_PAD0_MASK, 3 * MHz, 0);
nor_set_gpio_pinmux();
setup_chromeos_gpios();
}