mb/google/dedede/var/bugzzy: Enable/disable LTE function based on FW_CONFIG

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

BUG=None
BRANCH=dedede
TEST=FW_NAME=bugzzy emerge-dedede coreboot

Signed-off-by: Seunghwan Kim <sh_.kim@samsung.corp-partner.google.com>
Change-Id: I8363f8e7052ff9cfa423063a7e8f5a0f9ce1df2c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58442
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Henry Sun <henrysun@google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>

src/mainboard/google/dedede/variants/bugzzy/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[] = {
@@ -53,8 +55,22 @@ static const struct pad_config gpio_table[] = {
 	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(DB_PORTS, DB_PORTS_1C_1A_LTE)))
+		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/bugzzy/overridetree.cb

@@ -155,7 +155,9 @@ chip soc/intel/jasperlake
 						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 DB_PORTS DB_PORTS_1C_1A_LTE
+						end
 					end
 				end
 			end