1 files changed, 26 insertions, 0 deletions
diff --git a/chip/stm32/gpio-stm32l4.c b/chip/stm32/gpio-stm32l4.c
new file mode 100644
index 0000000000..67df8ba157
--- /dev/null
+++ b/chip/stm32/gpio-stm32l4.c
@@ -0,0 +1,26 @@
+/* Copyright 2016 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/* GPIO module for Chrome EC */
+
+#include "clock.h"
+#include "common.h"
+#include "registers.h"
+
+void gpio_enable_clocks(void)
+{
+	/*
+	 * Enable all GPIOs clocks
+	 *
+	 * TODO(crosbug.com/p/23770): only enable the banks we need to,
+	 * and support disabling some of them in low-power idle.
+	 */
+	STM32_RCC_AHB2ENR |= STM32_RCC_AHB2ENR_GPIOMASK;
+
+	/* Delay 1 AHB clock cycle after the clock is enabled */
+	clock_wait_bus_cycles(BUS_AHB, 1);
+}
+
+#include "gpio-f0-l.c"