diff options
| author | Rupjyoti Sarmah <rsarmah@amcc.com> | 2010-10-01 14:31:28 +0530 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2010-10-04 11:23:59 +0200 |
| commit | 709d9481e99f9f42625a48d0517a8877382995a3 (patch) | |
| tree | e5fa9b9516610ac87444a57751f081757d0a8121 /board/amcc/canyonlands/canyonlands.c | |
| parent | eb011d27aa813f428c3d7189f53070344af17096 (diff) | |
| download | u-boot-imx-709d9481e99f9f42625a48d0517a8877382995a3.zip u-boot-imx-709d9481e99f9f42625a48d0517a8877382995a3.tar.gz u-boot-imx-709d9481e99f9f42625a48d0517a8877382995a3.tar.bz2 | |
ppc44x: config GPIOs for USB on canyonlands board
The GPIO 16 and 19 reconfiguration should be done once USB is initialized.
So moved the reconfiguration to the USB init function.
Signed-off-by: Rupjyoti Sarmah <rsarmah@apm.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'board/amcc/canyonlands/canyonlands.c')
| -rw-r--r-- | board/amcc/canyonlands/canyonlands.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/board/amcc/canyonlands/canyonlands.c b/board/amcc/canyonlands/canyonlands.c index a30d4f4..faa3720 100644 --- a/board/amcc/canyonlands/canyonlands.c +++ b/board/amcc/canyonlands/canyonlands.c @@ -195,16 +195,6 @@ int board_early_init_f(void) mtdcr(AHB_TOP, 0x8000004B); mtdcr(AHB_BOT, 0x8000004B); - if (pvr_460ex()) { - /* - * Configure USB-STP pins as alternate and not GPIO - * It seems to be neccessary to configure the STP pins as GPIO - * input at powerup (perhaps while USB reset is asserted). So - * we configure those pins to their "real" function now. - */ - gpio_config(16, GPIO_OUT, GPIO_ALT1, GPIO_OUT_1); - gpio_config(19, GPIO_OUT, GPIO_ALT1, GPIO_OUT_1); - } #endif return 0; @@ -222,6 +212,15 @@ int usb_board_init(void) val &= ~(BCSR_USBCTRL_OTG_RST | BCSR_USBCTRL_HOST_RST); out_8(&bcsr_data->usb_ctrl, val); + /* + * Configure USB-STP pins as alternate and not GPIO + * It seems to be neccessary to configure the STP pins as GPIO + * input at powerup (perhaps while USB reset is asserted). So + * we configure those pins to their "real" function now. + */ + gpio_config(16, GPIO_OUT, GPIO_ALT1, GPIO_OUT_1); + gpio_config(19, GPIO_OUT, GPIO_ALT1, GPIO_OUT_1); + return 0; } @@ -236,6 +235,10 @@ int usb_board_stop(void) val |= (BCSR_USBCTRL_OTG_RST | BCSR_USBCTRL_HOST_RST); out_8(&bcsr_data->usb_ctrl, val); + /* Reconfigure USB-STP pins as input */ + gpio_config(16, GPIO_IN , GPIO_SEL, GPIO_OUT_0); + gpio_config(19, GPIO_IN , GPIO_SEL, GPIO_OUT_0); + return 0; } |