[U-Boot] [PATCH 3/4] mx53loco: Turn on VUSB regulator

[Liu Hui-R64343]

>-----Original Message-----
>From: Fabio Estevam [mailto:festevam at gmail.com]
>Sent: Tuesday, May 08, 2012 4:26 AM
>To: u-boot at lists.denx.de
>Cc: sbabic at denx.de; Liu Hui-R64343; Estevam Fabio-R49496
>Subject: [PATCH 3/4] mx53loco: Turn on VUSB regulator
>
>From: Fabio Estevam <fabio.estevam at freescale.com>
>
>On the mx53loco board with mc34708 PMIC it is necessary to turn on VUSB
>regulator so that the mx53 USBH1 PHY receives the 3.3V voltage.
>
>Tested by inserting a USB pen drive in the upper USB slot (USBH1) and then
>issued the
>commands:
>
>usb start
>
>usb info
>
>,which correctly detected and printed the USB pen drive information.
>
>Signed-off-by: Fabio Estevam <fabio.estevam at freescale.com>

Acked-by: Jason Liu <r64343 at freescale.com>

>---
> board/freescale/mx53loco/mx53loco.c |    9 +++++++++
> include/fsl_pmic.h                  |    1 +
> 2 files changed, 10 insertions(+), 0 deletions(-)
>
>diff --git a/board/freescale/mx53loco/mx53loco.c
>b/board/freescale/mx53loco/mx53loco.c
>index 8c18b99..4d3b73d 100644
>--- a/board/freescale/mx53loco/mx53loco.c
>+++ b/board/freescale/mx53loco/mx53loco.c
>@@ -359,6 +359,15 @@ static int power_init(void)
> 		pmic_reg_read(p, REG_POWER_CTL2, &val);
> 		val = (val & ~TIMER_MASK_MC34708) | TIMER_4S_MC34708;
> 		ret |= pmic_reg_write(p, REG_POWER_CTL2, val);
>+
>+		/* Set VUSBSEL and VUSBEN for USB PHY supply*/
>+		pmic_reg_read(p, REG_MODE_0, &val);
>+		val |= (VUSBSEL_MC34708 | VUSBEN_MC34708);
>+		ret |= pmic_reg_write(p, REG_MODE_0, val);
>+
>+		/* Set SWBST to 5V in auto mode */
>+		val = SWBST_AUTO;
>+		ret |= pmic_reg_write(p, SWBST_CTRL, val);
> 	}
>
> 	return ret;
>diff --git a/include/fsl_pmic.h b/include/fsl_pmic.h index 3b7cd37..64c1e2e
>100644
>--- a/include/fsl_pmic.h
>+++ b/include/fsl_pmic.h
>@@ -131,5 +131,6 @@ enum {
> #define VUSBSEL_MC34708		(1 << 2)
> #define VUSBEN_MC34708		(1 << 3)
> #define SWBST_CTRL		31
>+#define SWBST_AUTO		0x8
>
> #endif
>--
>1.7.1
>