[coreboot-gerrit] [S] Change in coreboot[master]: mb/google/skyrim/var/markarth: Change to read the eMMC clkreq instead

[John Su (Code Review)]

John Su has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/74583 )

Change subject: mb/google/skyrim/var/markarth: Change to read the eMMC clkreq instead
......................................................................

mb/google/skyrim/var/markarth: Change to read the eMMC clkreq instead

Because WD SSD drive isn't holding the clock low for some reason.
So we chage to read eMMc clkreq signal instead.

BRANCH=none
BUG=b:278495684
TEST=emerge-skyrim coreboot chromeos-bootimage and verify ok.

Signed-off-by: John Su 
Change-Id: I3a9225473a6ae1ba01dc8e5d982c4999f073267e
---
M src/mainboard/google/skyrim/variants/markarth/port_descriptors.c
1 file changed, 23 insertions(+), 6 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/83/74583/1

diff --git a/src/mainboard/google/skyrim/variants/markarth/port_descriptors.c b/src/mainboard/google/skyrim/variants/markarth/port_descriptors.c
index 330fc46..94eb465 100644
--- a/src/mainboard/google/skyrim/variants/markarth/port_descriptors.c
+++ b/src/mainboard/google/skyrim/variants/markarth/port_descriptors.c
@@ -74,7 +74,7 @@
    },
 };

-#define NVME_CLKREQ_GPIO 92
+#define EMMC_CLKREQ_GPIO 115
 void variant_get_dxio_descriptor(const fsp_dxio_descriptor **dxio_descs, size_t *dxio_num)
 {
    /*
@@ -85,13 +85,13 @@
     * This allows checking the state of the NVMe device clkreq signal and enabling
     * either eMMC or NVMe based on that.
     */
-	if (gpio_get(NVME_CLKREQ_GPIO)) {
-		printk(BIOS_DEBUG, "Enabling eMMC.\n");
-		*dxio_num = ARRAY_SIZE(emmc_dxio_descriptors);
-		*dxio_descs = emmc_dxio_descriptors;
-	} else {
+	if (gpio_get(EMMC_CLKREQ_GPIO)) {
    	printk(BIOS_DEBUG, "Enabling NVMe.\n");
    	*dxio_num = ARRAY_SIZE(nvme_dxio_descriptors);
    	*dxio_descs = nvme_dxio_descriptors;
+	} else {
+		printk(BIOS_DEBUG, "Enabling eMMC.\n");
+		*dxio_num = ARRAY_SIZE(emmc_dxio_descriptors);
+		*dxio_descs = emmc_dxio_descriptors;
    }
 }