This patch enables Vbus required for USB 2.0 controller.
Signed-off-by: Vivek Gautam <gautam.vi...@samsung.com>
Signed-off-by: Rajeshwari Shinde <rajeshwar...@samsung.com>
---
Changes from v2:
- Rebased on top of u-boot-usb/next
- Enclosed the function definition for board_usb_vbus_init()
inside "CONFIG_USB_EHCI_EXYNOS"
Changes from v1:
- Using the old school method of setting up gpio instead
of using the pinmux method, since the required gpio line
here is board specific.
board/samsung/smdk5250/smdk5250.c | 19 +++++++++++++++++++
1 files changed, 19 insertions(+), 0 deletions(-)
diff --git a/board/samsung/smdk5250/smdk5250.c
b/board/samsung/smdk5250/smdk5250.c
index a5816e4..cf7f801 100644
--- a/board/samsung/smdk5250/smdk5250.c
+++ b/board/samsung/smdk5250/smdk5250.c
@@ -60,9 +60,28 @@ static int smc9115_pre_init(void)
}
#endif
+#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_USB_EHCI_EXYNOS
+ board_usb_vbus_init();
+#endif
return 0;
}
--
1.7.6.5
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