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mx53loco: Turn on VUSB regulator 

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@freescale.com>
Acked-by: Jason Liu <r64343@freescale.com>
Acked-by: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Fabio Estevam 2012-05-07 10:26:00 +00:00 committed by Albert ARIBAUD
parent 5b547f3c20
commit 768a059710
2 changed files with 10 additions and 0 deletions
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9
board/freescale/mx53loco/mx53loco.c
View File

@ -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;

1
include/fsl_pmic.h
View File

@ -131,5 +131,6 @@ enum {
#define VUSBSEL_MC34708 (1 << 2)
#define VUSBEN_MC34708 (1 << 3)
#define SWBST_CTRL 31
#define SWBST_AUTO 0x8
#endif