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ppc44x: config GPIOs for USB on canyonlands board

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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>
This commit is contained in:
Rupjyoti Sarmah 2010-10-01 14:31:28 +05:30 committed by Stefan Roese
parent eb011d27aa
commit 709d9481e9
1 changed files with 13 additions and 10 deletions
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23
board/amcc/canyonlands/canyonlands.c
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@ -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;
}