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omap3: beaglexm: fix EHCI power up GPIO dir

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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
1 changed files with 8 additions and 2 deletions
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10
arch/arm/mach-omap2/board-omap3beagle.c
View file

@ -297,9 +297,15 @@ 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");
gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
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) */
gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;