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mx53loco: Turn on VUSB regulator

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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