From 80ddd29adbad37d83dd37a2d04af67b16e113f99 Mon Sep 17 00:00:00 2001 From: Felix Held Date: Sun, 13 Feb 2022 22:20:42 +0100 Subject: mb/amd/chausie: initialize KBRST and EC flash sharing pins in bootblock The SPI ROM REQ/GNT pins are used in systems where the EC and the APU share one flash chip to make sure that not both devices will try to access the flash at the same time. The firmware running before the x86 cores are released from reset has likely already done this, but do it again in bootblock just to be sure. The KBRST_L pin can be used to reset the APU from the EC. Signed-off-by: Felix Held Change-Id: I5af285ac222ed6625f498d82360f2d1cc522df2f Reviewed-on: https://review.coreboot.org/c/coreboot/+/61903 Tested-by: build bot (Jenkins) Reviewed-by: Raul Rangel --- src/mainboard/amd/chausie/early_gpio.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'src/mainboard') diff --git a/src/mainboard/amd/chausie/early_gpio.c b/src/mainboard/amd/chausie/early_gpio.c index 09202d8efa..0929c7b8d1 100644 --- a/src/mainboard/amd/chausie/early_gpio.c +++ b/src/mainboard/amd/chausie/early_gpio.c @@ -24,6 +24,12 @@ static const struct soc_amd_gpio gpio_set_stage_reset[] = { PAD_NF(GPIO_22, ESPI_ALERT_D1, PULL_NONE), /* TPM IRQ */ PAD_SCI(GPIO_130, PULL_UP, EDGE_LOW), + /* SPI_ROM_REQ */ + PAD_NF(GPIO_67, SPI_ROM_REQ, PULL_NONE), + /* SPI_ROM_GNT */ + PAD_NF(GPIO_76, SPI_ROM_GNT, PULL_NONE), + /* KBRST_L */ + PAD_NF(GPIO_21, KBRST_L, PULL_NONE), /* Deassert PCIe Reset lines */ /* PCIE_RST0_L */ -- cgit v1.2.3