Patchwork [U-Boot,v2] SMDK5250: Enable VBus for USB 2.0 controller

login
register
mail settings
Submitter Vivek Gautam
Date Jan. 3, 2013, 3:22 p.m.
Message ID <1357226560-13573-1-git-send-email-gautam.vivek@samsung.com>
Download mbox | patch
Permalink /patch/209303/
State Changes Requested
Delegated to: Marek Vasut
Headers show

Comments

Vivek Gautam - Jan. 3, 2013, 3:22 p.m.
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(-)
Marek Vasut - Jan. 7, 2013, 3:37 p.m.
Dear Vivek Gautam,

> 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>
> ---

Can you please rebase on top of u-boot-usb/next ?

Best regards,
Marek Vasut
Vivek Gautam - Jan. 8, 2013, 6:12 a.m.
Hi Marek,


CCing: Simon Glass

On Mon, Jan 7, 2013 at 9:07 PM, Marek Vasut <marex@denx.de> wrote:
> Dear Vivek Gautam,
>
>> 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>
>> ---
>
> Can you please rebase on top of u-boot-usb/next ?
>

Since these changes were related to samsung so i based them on
u-boot-samsung. :-)
I shall post a patch rebased on top of u-boot-usb/next.
Marek Vasut - Jan. 8, 2013, 7:03 a.m.
Dear Vivek Gautam,

> Hi Marek,
> 
> 
> CCing: Simon Glass
> 
> On Mon, Jan 7, 2013 at 9:07 PM, Marek Vasut <marex@denx.de> wrote:
> > Dear Vivek Gautam,
> > 
> >> 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>
> >> ---
> > 
> > Can you please rebase on top of u-boot-usb/next ?
> 
> Since these changes were related to samsung so i based them on
> u-boot-samsung. :-)
> I shall post a patch rebased on top of u-boot-usb/next.

Oh, I'll pick this for -next.

Best regards,
Marek Vasut

Patch

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;
 }