blob: ffc8169a547c6754bc3be8713ac8e3d244944f71 [file] [log] [blame]
Raul E Rangeld0b059f2022-03-24 17:04:11 -06001/* SPDX-License-Identifier: GPL-2.0-only */
2
3#include <amdblocks/spi.h>
4#include <soc/espi.h>
5#include <types.h>
6
Felix Held0e9dbf02023-01-19 23:06:54 +01007#define ESPI_CNTRL_REGISTER 0x10 /* SPI register, not eSPI register! */
Raul E Rangeld0b059f2022-03-24 17:04:11 -06008#define LOCK_SPIX10_BIT2 BIT(3)
9#define ESPI_MUX_SPI1 BIT(2)
10#define ROM_ADDR_WR_PROT BIT(1)
11#define DIS_ESPI_MASCTL_REG_WR BIT(0)
12
13void espi_switch_to_spi1_pads(void)
14{
15 uint8_t reg = spi_read8(ESPI_CNTRL_REGISTER);
16
17 reg |= ESPI_MUX_SPI1;
18
19 spi_write8(ESPI_CNTRL_REGISTER, reg);
20}