pit: Configure the pinmux for the i2c busses that are connected on pit.

Change-Id: I2dc4caa370473dd86fee2b5cc8b1b9eb154b970e
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3702
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/src/mainboard/google/pit/mainboard.c b/src/mainboard/google/pit/mainboard.c
index 1608788..64783ad 100644
--- a/src/mainboard/google/pit/mainboard.c
+++ b/src/mainboard/google/pit/mainboard.c
@@ -159,6 +159,17 @@
 	gpio_direction_output(usb3_pll_l, 0);
 }
 
+static void gpio_init(void)
+{
+	/* Set up the I2C busses. */
+	exynos_pinmux_i2c2();
+	exynos_pinmux_i2c4();
+	exynos_pinmux_i2c7();
+	exynos_pinmux_i2c8();
+	exynos_pinmux_i2c9();
+	exynos_pinmux_i2c10();
+}
+
 /* this happens after cpu_init where exynos resources are set */
 static void mainboard_init(device_t dev)
 {
@@ -169,6 +180,8 @@
 	};
 	void *fb_addr;
 
+	gpio_init();
+
 	tmu_init(&exynos5420_tmu_info);
 
 	/* Clock Gating all the unused IP's to save power */