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authorSeunghwan Kim <sh_.kim@samsung.corp-partner.google.com>2021-10-19 15:31:27 +0900
committerFelix Held <felix-coreboot@felixheld.de>2021-10-21 01:57:23 +0000
commit9ce51c3585492a0f5dcfab27c9dc58deb632ac5a (patch)
tree8afdee651a6a5926746f7694306d6972017df8a5 /src/mainboard/google
parent0c39cd7dab5e7444c61d078968722124e1bfba48 (diff)
mb/google/dedede/var/bugzzy: Add LTE power off sequence
This change adds LTE power off sequence for bugzzy. 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: I6be0e23b9c2c2bed9745011920394006fdaabae6 Reviewed-on: https://review.coreboot.org/c/coreboot/+/58443 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Henry Sun <henrysun@google.com> Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Diffstat (limited to 'src/mainboard/google')
-rw-r--r--src/mainboard/google/dedede/variants/bugzzy/Makefile.inc2
-rw-r--r--src/mainboard/google/dedede/variants/bugzzy/variant.c23
2 files changed, 25 insertions, 0 deletions
diff --git a/src/mainboard/google/dedede/variants/bugzzy/Makefile.inc b/src/mainboard/google/dedede/variants/bugzzy/Makefile.inc
index eb2c9bc021..fd60a18b69 100644
--- a/src/mainboard/google/dedede/variants/bugzzy/Makefile.inc
+++ b/src/mainboard/google/dedede/variants/bugzzy/Makefile.inc
@@ -1,3 +1,5 @@
## SPDX-License-Identifier: GPL-2.0-or-later
ramstage-y += gpio.c
+
+smm-y += variant.c
diff --git a/src/mainboard/google/dedede/variants/bugzzy/variant.c b/src/mainboard/google/dedede/variants/bugzzy/variant.c
new file mode 100644
index 0000000000..22caa069d3
--- /dev/null
+++ b/src/mainboard/google/dedede/variants/bugzzy/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();
+}