omap3: beaglexm: fix EHCI power up GPIO dir

EHCI enable power pin is inverted (active high) in comparison
to vanilla beagle which is active low. Handle this case conditionally.

Without this fix, Beagle XM 4 port EHCI will not function and no
networking will be available

[nm@ti.com: split up, added descriptive changelogs]
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Koen Kooi <koen@beagleboard.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Koen Kooi 2011-01-11 17:13:35 +00:00 committed by Tony Lindgren
parent 18cbc7d94c
commit 68fc3e152c

View file

@ -297,8 +297,14 @@ static int beagle_twl_gpio_setup(struct device *dev,
gpio_request(gpio + 1, "EHCI_nOC");
gpio_direction_input(gpio + 1);
/* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
/*
* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
* high / others active low)
*/
gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM)
gpio_direction_output(gpio + TWL4030_GPIO_MAX, 1);
else
gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
/* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */