Change in coreboot[master]: mb/google/nipperkin: Disable PSPP for WLAN

[Rob Barnes (Code Review)]

Rob Barnes has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/63593 )

Change subject: mb/google/nipperkin: Disable PSPP for WLAN
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mb/google/nipperkin: Disable PSPP for WLAN

Disable PSPP parameters for WLAN card on Nipperkin. This feature
is causing S0ix resume hangs.

BUG=b:227296841,b:228830362
BRANCH=guybrush
TEST=Suspend stress test passes on Nipperkin

Signed-off-by: Rob Barnes 
Change-Id: I38f05b92ace4aba61163194a6a638915882b8871
---
M src/mainboard/google/guybrush/variants/nipperkin/variant.c
1 file changed, 4 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/93/63593/1

diff --git a/src/mainboard/google/guybrush/variants/nipperkin/variant.c b/src/mainboard/google/guybrush/variants/nipperkin/variant.c
index 204ec61..b10aadf 100644
--- a/src/mainboard/google/guybrush/variants/nipperkin/variant.c
+++ b/src/mainboard/google/guybrush/variants/nipperkin/variant.c
@@ -4,6 +4,7 @@
 #include <boardid.h>
 #include <device/device.h>
 #include <soc/gpio.h>
+#include <string.h>

void variant_update_dxio_descriptors(fsp_dxio_descriptor *dxio_descriptors)
 {
@@ -12,6 +13,9 @@
    if (board_version >= 3) {
    	dxio_descriptors[WLAN].link_aspm_L1_1 = true;
    	dxio_descriptors[WLAN].link_aspm_L1_2 = true;
+		/* Disable PSPP */
+		memset(dxio_descriptors[WLAN].port_params, 0,
+		       sizeof(dxio_descriptors[WLAN].port_params));
    } else {
    	dxio_descriptors[WLAN].link_aspm_L1_1 = false;
    	dxio_descriptors[WLAN].link_aspm_L1_2 = false;