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authorVivek Gautam <gautam.vivek@samsung.com>2013-01-07 23:37:18 +0000
committerMinkyu Kang <mk7.kang@samsung.com>2013-01-08 21:14:34 +0900
commit9a0c4f9b870da77b1768470bc37d12251e0a438e (patch)
treec56f64adfb885ff956a6e8fb96d5288b270e602a
parent6abd1620beeb96f64c85f4fac8336fcb523b912e (diff)
downloadu-boot-linaro-stable-9a0c4f9b870da77b1768470bc37d12251e0a438e.tar.gz
SMDK5250: Enable VBus for USB 2.0 controller
This patch enables Vbus required for USB 2.0 controller. Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
-rw-r--r--board/samsung/smdk5250/smdk5250.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/board/samsung/smdk5250/smdk5250.c b/board/samsung/smdk5250/smdk5250.c
index 73c3ec020..d80f75da1 100644
--- a/board/samsung/smdk5250/smdk5250.c
+++ b/board/samsung/smdk5250/smdk5250.c
@@ -35,12 +35,31 @@
DECLARE_GLOBAL_DATA_PTR;
+#ifdef CONFIG_USB_EHCI_EXYNOS
+int board_usb_vbus_init(void)
+{
+ struct exynos5_gpio_part1 *gpio1 = (struct exynos5_gpio_part1 *)
+ samsung_get_base_gpio_part1();
+
+ /* Enable VBUS power switch */
+ s5p_gpio_direction_output(&gpio1->x2, 6, 1);
+
+ /* VBUS turn ON time */
+ mdelay(3);
+
+ return 0;
+}
+#endif
+
int board_init(void)
{
gd->bd->bi_boot_params = (PHYS_SDRAM_1 + 0x100UL);
#ifdef CONFIG_EXYNOS_SPI
spi_init();
#endif
+#ifdef CONFIG_USB_EHCI_EXYNOS
+ board_usb_vbus_init();
+#endif
return 0;
}