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* [U-Boot] [PATCH v2] SMDK5250: Enable VBus for USB 2.0 controller
@ 2013-01-03 15:22 Vivek Gautam
  2013-01-07 15:37 ` Marek Vasut
  0 siblings, 1 reply; 4+ messages in thread
From: Vivek Gautam @ 2013-01-03 15:22 UTC (permalink / raw)
  To: u-boot

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>
---

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 |   17 +++++++++++++++++
 1 files changed, 17 insertions(+), 0 deletions(-)

diff --git a/board/samsung/smdk5250/smdk5250.c b/board/samsung/smdk5250/smdk5250.c
index 268b42c..fad58f3 100644
--- a/board/samsung/smdk5250/smdk5250.c
+++ b/board/samsung/smdk5250/smdk5250.c
@@ -35,12 +35,29 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
+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;
+}
+
 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;
 }
 
-- 
1.7.6.5

^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2013-01-08  7:03 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-01-03 15:22 [U-Boot] [PATCH v2] SMDK5250: Enable VBus for USB 2.0 controller Vivek Gautam
2013-01-07 15:37 ` Marek Vasut
2013-01-08  6:12   ` Vivek Gautam
2013-01-08  7:03     ` Marek Vasut

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