UPSTREAM: 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 change to read eMMC clkreq signal instead.

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

(cherry picked from commit fa7e6b8c031702a2ad31018fb00dfa75e427cbb7)

Original-Signed-off-by: John Su <john_su@compal.corp-partner.google.com>
Original-Change-Id: I3a9225473a6ae1ba01dc8e5d982c4999f073267e
Original-Reviewed-on: https://review.coreboot.org/c/coreboot/+/74583
Original-Reviewed-by: Chao Gui <chaogui@google.com>
Original-Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Original-Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Original-Reviewed-by: Tim Van Patten <timvp@google.com>
Original-Reviewed-by: Frank Wu <frank_wu@compal.corp-partner.google.com>
GitOrigin-RevId: fa7e6b8c031702a2ad31018fb00dfa75e427cbb7
Change-Id: I1d00c590ad7ae35755937de5772e405d3de49cec
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/4462636
Tested-by: CopyBot Service Account <copybot.service@gmail.com>
Tested-by: John Su <john_su@compal.corp-partner.google.com>
Reviewed-by: Jonathon Murphy <jpmurphy@google.com>
Commit-Queue: Jonathon Murphy <jpmurphy@google.com>

src/mainboard/google/skyrim/variants/markarth/port_descriptors.c

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;
 	}
 }