commit 2bd4c98c42c63883fc5bca9e687d5f5fb7776ccb
author Teddy Shih <teddyshih@ami.corp-partner.google.com> Tue Mar 15 14:57:28 2022 +0800
committer Felix Held <felix-coreboot@felixheld.de> Wed Mar 23 14:59:31 2022 +0000
tree 77b484ec70d6ca90f6f2cfba586a78fc88533b1b
parent 85a09ef99b56ec4e7398efd1d72b388d92435286

mb/google/dedede/var/beadrix: Enable LTE function by FW_CONFIG option

Enable/disable LTE function based on LTE field of FW_CONFIG.
1. GPIO control
2. USB port setting

BUG=b:213582491
BRANCH=dedede
TEST=FW_NAME=beadrix emerge-dedede coreboot

Change-Id: Icea44992e2e3195d1fd9a888f5ce4650f82280bb
Signed-off-by: Teddy Shih <teddyshih@ami.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62801
Reviewed-by: Henry Sun <henrysun@google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/dedede/variants/beadrix/gpio.c

diff --git a/src/mainboard/google/dedede/variants/beadrix/gpio.c b/src/mainboard/google/dedede/variants/beadrix/gpio.c
index 0732355..57573cc 100644
--- a/src/mainboard/google/dedede/variants/beadrix/gpio.c
+++ b/src/mainboard/google/dedede/variants/beadrix/gpio.c
@@ -2,6 +2,8 @@
 
 #include <baseboard/gpio.h>
 #include <baseboard/variants.h>
+#include <bootstate.h>
+#include <fw_config.h>
 
 /* Pad configuration in ramstage */
 static const struct pad_config gpio_table[] = {
@@ -69,8 +71,21 @@
 	PAD_CFG_GPO(GPP_H17, 0, PLTRST),
 };
 
+static const struct pad_config lte_disable_pads[] = {
+	PAD_NC(GPP_A10, NONE),
+	PAD_NC(GPP_D0, NONE),
+	PAD_NC(GPP_H17, NONE),
+};
+
 const struct pad_config *variant_override_gpio_table(size_t *num)
 {
 	*num = ARRAY_SIZE(gpio_table);
 	return gpio_table;
 }
+
+static void fw_config_handle(void *unused)
+{
+	if (!fw_config_probe(FW_CONFIG(LTE, LTE_PRESENT)))
+		gpio_configure_pads(lte_disable_pads, ARRAY_SIZE(lte_disable_pads));
+}
+BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_ENTRY, fw_config_handle, NULL);

src/mainboard/google/dedede/variants/beadrix/overridetree.cb

diff --git a/src/mainboard/google/dedede/variants/beadrix/overridetree.cb b/src/mainboard/google/dedede/variants/beadrix/overridetree.cb
index 7f2d62f..d5b37d4 100644
--- a/src/mainboard/google/dedede/variants/beadrix/overridetree.cb
+++ b/src/mainboard/google/dedede/variants/beadrix/overridetree.cb
@@ -97,7 +97,9 @@
 						register "reset_off_delay_ms" = "20"
 						register "enable_gpio" = "ACPI_GPIO_OUTPUT_ACTIVE_HIGH(GPP_A10)"
 						register "enable_delay_ms" = "20"
-						device usb 3.3 on end
+						device usb 3.3 on
+							probe LTE LTE_PRESENT
+						end
 					end
 				end
 			end