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-rw-r--r--baseboard/volteer/baseboard.c16
-rw-r--r--board/volteer/gpio.inc2
2 files changed, 18 insertions, 0 deletions
diff --git a/baseboard/volteer/baseboard.c b/baseboard/volteer/baseboard.c
index a5057c4396..4565822977 100644
--- a/baseboard/volteer/baseboard.c
+++ b/baseboard/volteer/baseboard.c
@@ -343,3 +343,19 @@ void board_overcurrent_event(int port, int is_overcurrented)
/* TODO: b/140561826 - check correct operation for Volteer */
}
+/*
+ * Enable fan for 100% speed when AP is powered on.
+ * TODO: b/ remove this once PWM control is working.
+ */
+static void board_chipset_startup(void)
+{
+ gpio_set_level_verbose(CC_SYSTEM, GPIO_EN_PP5000_FAN, 1);
+}
+DECLARE_HOOK(HOOK_CHIPSET_STARTUP, board_chipset_startup, HOOK_PRIO_DEFAULT);
+
+static void board_chipset_shutdown(void)
+{
+ gpio_set_level_verbose(CC_SYSTEM, GPIO_EN_PP5000_FAN, 0);
+}
+DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, board_chipset_shutdown, HOOK_PRIO_DEFAULT);
+
diff --git a/board/volteer/gpio.inc b/board/volteer/gpio.inc
index e8327b8e5e..3e6042b4b8 100644
--- a/board/volteer/gpio.inc
+++ b/board/volteer/gpio.inc
@@ -91,6 +91,8 @@ GPIO(EN_PP3300_AG, PIN(8, 5), GPIO_OUT_LOW)
* default. */
GPIO(LED_SIDESEL_4_L, PIN(6, 0), GPIO_OUT_LOW)
+GPIO(EN_PP5000_FAN, PIN(6, 1), GPIO_OUT_LOW)
+
/*
* eDP backlight - both PCH and EC have enable pins that must be high
* for the backlight to turn on. Default state is high, and can be turned