-----Original Message----- From: Fabio Estevam [mailto:festevam@gmail.com] Sent: Tuesday, May 08, 2012 4:26 AM To: u-boot@lists.denx.de Cc: sbabic@denx.de; Liu Hui-R64343; Estevam Fabio-R49496 Subject: [PATCH 3/4] mx53loco: Turn on VUSB regulator
From: Fabio Estevam fabio.estevam@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@freescale.com
Acked-by: Jason Liu r64343@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