Change in coreboot[master]: soc/amd/common/espi: Don't set alert pin in espi_set_initial_config

[Raul Rangel (Code Review)]

Attention is currently required from: Jason Glenesk, Marshall Dawson, Felix Held.
Raul Rangel has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/52953 )

Change subject: soc/amd/common/espi: Don't set alert pin in espi_set_initial_config
......................................................................

soc/amd/common/espi: Don't set alert pin in espi_set_initial_config

The eSPI spec says that the Alert Mode defaults to in-band on reset.
This change ensures the controller is in sync with the eSPI peripheral.

The configured alert mode is configured in
espi_set_general_configuration.

BUG=b:187122344, b:186135022
TEST=Boot guybrush and make sure we don't get any eSPI errors.

Signed-off-by: Raul E Rangel 
Change-Id: Ib43e190d08d77ecfcd22ead2bf42e5de2202b555
---
M src/soc/amd/common/block/lpc/espi_util.c
1 file changed, 0 insertions(+), 3 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/53/52953/1

diff --git a/src/soc/amd/common/block/lpc/espi_util.c b/src/soc/amd/common/block/lpc/espi_util.c
index 9f077d2..dfd19d0 100644
--- a/src/soc/amd/common/block/lpc/espi_util.c
+++ b/src/soc/amd/common/block/lpc/espi_util.c
@@ -859,9 +859,6 @@
 {
    uint32_t espi_initial_mode = ESPI_OP_FREQ_16_MHZ | ESPI_IO_MODE_SINGLE;

-	if (mb_cfg->dedicated_alert_pin)
-		espi_initial_mode |= ESPI_ALERT_MODE;
-
    espi_write32(ESPI_SLAVE0_CONFIG, espi_initial_mode);
 }