mb/google/dedede/var/beadrix: Add LTE power off sequence
This change adds LTE power off sequence for beadrix.
BUG=b:204882915
BRANCH=dedede
TEST=FW_NAME=beadrix emerge-dedede coreboot
Change-Id: I11370bf69438465d2230e2633044ba42685a152b
Signed-off-by: Teddy Shih <teddyshih@ami.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61329
Reviewed-by: Henry Sun <henrysun@google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/dedede/variants/beadrix/Makefile.inc b/src/mainboard/google/dedede/variants/beadrix/Makefile.inc
index e835c69..1151020 100644
--- a/src/mainboard/google/dedede/variants/beadrix/Makefile.inc
+++ b/src/mainboard/google/dedede/variants/beadrix/Makefile.inc
@@ -3,3 +3,5 @@
romstage-y += memory.c
ramstage-y += gpio.c
+
+smm-y += variant.c
diff --git a/src/mainboard/google/dedede/variants/beadrix/variant.c b/src/mainboard/google/dedede/variants/beadrix/variant.c
new file mode 100644
index 0000000..22caa06
--- /dev/null
+++ b/src/mainboard/google/dedede/variants/beadrix/variant.c
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <acpi/acpi.h>
+#include <baseboard/variants.h>
+#include <delay.h>
+#include <gpio.h>
+
+static void power_off_lte_module(void)
+{
+ gpio_output(GPP_H17, 0);
+ mdelay(20);
+ gpio_output(GPP_A10, 0);
+}
+
+void variant_smi_sleep(u8 slp_typ)
+{
+ /*
+ * Once the FW_CONFIG is provisioned, power off LTE module only under
+ * the situation where it is stuffed.
+ */
+ if (slp_typ == ACPI_S5)
+ power_off_lte_module();
+}