hatch: Fix FPMCU pwr/rst gpio handling for dratini/jinlon

In https://review.coreboot.org/c/coreboot/+/37459
(commit fcd8c9e99e7f70e2b9494f2fa28a08ba13126daa) which moves power/reset
pin control of FPMCU to var/board/ramstage, but does not implement it for
dratini/jinlon. So, add it in dratini/jinlon.

BUG=b:146366921
TEST=emerge-hatch coreboot

Change-Id: I1b6dbe4ba0a1242aa64346410beed4152b4f457f
Signed-off-by: Wisley Chen <wisley.chen@quantatw.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37833
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 29 insertions, 0 deletions

diff --git a/src/mainboard/google/hatch/variants/dratini/gpio.c b/src/mainboard/google/hatch/variants/dratini/gpio.c
index fd59060756..e3b3d8a23a 100644
--- a/src/mainboard/google/hatch/variants/dratini/gpio.c
+++ b/src/mainboard/google/hatch/variants/dratini/gpio.c
@@ -134,3 +134,32 @@ const struct pad_config *variant_early_gpio_table(size_t *num)
 	*num = ARRAY_SIZE(early_gpio_table);
 	return early_gpio_table;
 }
+
+/*
+ * Default GPIO settings before entering non-S5 sleep states.
+ * Configure A12: FPMCU_RST_ODL as GPO before entering sleep.
+ * This guarantees that A12's native3 function is disabled.
+ * See commit c41b0e8ea3b2714bf6d6d88a6b66c333c6919f07.
+ */
+static const struct pad_config default_sleep_gpio_table[] = {
+	PAD_CFG_GPO(GPP_A12, 1, DEEP), /* FPMCU_RST_ODL */
+};
+
+/*
+ * GPIO settings before entering S5, which are same as default_sleep_gpio_table
+ * but also, turn off FPMCU.
+ */
+static const struct pad_config s5_sleep_gpio_table[] = {
+	PAD_CFG_GPO(GPP_A12, 0, DEEP), /* FPMCU_RST_ODL */
+	PAD_CFG_GPO(GPP_C11, 0, DEEP), /* PCH_FP_PWR_EN */
+};
+
+const struct pad_config *variant_sleep_gpio_table(u8 slp_typ, size_t *num)
+{
+	if (slp_typ == ACPI_S5) {
+		*num = ARRAY_SIZE(s5_sleep_gpio_table);
+		return s5_sleep_gpio_table;
+	}
+	*num = ARRAY_SIZE(default_sleep_gpio_table);
+	return default_sleep_gpio_table;
+}