[coreboot-gerrit] [S] Change in coreboot[master]: mb/google/nissa/var/uldren: Add fw_config probed for lte

[Dtrain Hsu (Code Review)]

Dtrain Hsu has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/75337 )

Change subject: mb/google/nissa/var/uldren: Add fw_config probed for lte
......................................................................

mb/google/nissa/var/uldren: Add fw_config probed for lte

Use fw_config to probe lte.

BUG=b:
BRANCH=firmware-nissa-15217.B
TEST=emerge-nissa coreboot chromeos-bootimage

Change-Id: I5596f3536b0a21453f89e67615acabbbf6a8409b
Signed-off-by: Dtrain Hsu 
---
M src/mainboard/google/brya/variants/uldren/overridetree.cb
M src/mainboard/google/brya/variants/uldren/variant.c
2 files changed, 40 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/37/75337/1

diff --git a/src/mainboard/google/brya/variants/uldren/overridetree.cb b/src/mainboard/google/brya/variants/uldren/overridetree.cb
index cc2acef..6836283 100644
--- a/src/mainboard/google/brya/variants/uldren/overridetree.cb
+++ b/src/mainboard/google/brya/variants/uldren/overridetree.cb
@@ -1,4 +1,8 @@
 fw_config
+	field DB_LTE 1 1
+		option LTE_ABSENT	0
+		option LTE_PRESENT	1
+	end
    field TOUCHPAD 8 9
    	option TOUCHPAD_UNKNOW	0
    	option TOUCHPAD_EKT3744	1
@@ -377,7 +381,9 @@
    				chip drivers/usb/acpi
    					register "desc" = ""USB2 WWAN""
    					register "type" = "UPC_TYPE_INTERNAL"
-						device ref usb2_port4 on end
+						device ref usb2_port4 on
+							probe DB_LTE LTE_PRESENT
+						end
    				end
    				chip drivers/usb/acpi
    					register "desc" = ""USB2 User Facing Camera""
@@ -405,7 +411,9 @@
    				chip drivers/usb/acpi
    					register "desc" = ""USB3 WWAN""
    					register "type" = "UPC_TYPE_INTERNAL"
-						device ref usb3_port2 on end
+						device ref usb3_port2 on
+							probe DB_LTE LTE_PRESENT
+						end
    				end
    			end
    		end
diff --git a/src/mainboard/google/brya/variants/uldren/variant.c b/src/mainboard/google/brya/variants/uldren/variant.c
index d9a6565..f5b0609 100644
--- a/src/mainboard/google/brya/variants/uldren/variant.c
+++ b/src/mainboard/google/brya/variants/uldren/variant.c
@@ -16,6 +16,15 @@
    PAD_NC(GPP_H7, NONE),
 };

+static const struct pad_config lte_disable_pads[] = {
+	/* A8  : WWAN_RF_DISABLE_ODL */
+	PAD_NC(GPP_A8, NONE),
+	/* D6  : SRCCLKREQ1# ==> WWAN_EN */
+	PAD_NC(GPP_D6, NONE),
+	/* F12 : WWAN_RST_L */
+	PAD_NC_LOCK(GPP_F12, NONE, LOCK_CONFIG),
+};
+
 const char *get_wifi_sar_cbfs_filename(void)
 {
    return "wifi_sar_0.hex";
@@ -28,4 +37,9 @@
    	gpio_padbased_override(padbased_table, touchscreen_disable_pads,
    					ARRAY_SIZE(touchscreen_disable_pads));
    }
+	if (fw_config_probe(FW_CONFIG(DB_LTE, LTE_ABSENT))) {
+		printk(BIOS_INFO, "Disable LTE GPIO pins.\n");
+		gpio_padbased_override(padbased_table, lte_disable_pads,
+						ARRAY_SIZE(lte_disable_pads));
+	}
 }