From: Fabio Estevam <fabio.este...@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.este...@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
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