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authorIgor Grinberg <grinberg@compulab.co.il>2009-12-06 15:45:43 +0200
committerEric Miao <eric.y.miao@gmail.com>2009-12-13 21:42:57 +0800
commit1b82e4c32fba96d8805b1e2126ba5382e56fac32 (patch)
tree4cb7bd20610d198beed7df7b3f87357e0fe14c38 /arch/arm
parentf40542532e96dda5506eb76badea322f2ae4731c (diff)
[ARM] pxa/em-x270: fix usb hub power up/reset sequence
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-pxa/em-x270.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/arch/arm/mach-pxa/em-x270.c b/arch/arm/mach-pxa/em-x270.c
index 1c0de808b54..c8a01bc85fd 100644
--- a/arch/arm/mach-pxa/em-x270.c
+++ b/arch/arm/mach-pxa/em-x270.c
@@ -497,16 +497,15 @@ static int em_x270_usb_hub_init(void)
goto err_free_vbus_gpio;
/* USB Hub power-on and reset */
- gpio_direction_output(usb_hub_reset, 0);
+ gpio_direction_output(usb_hub_reset, 1);
+ gpio_direction_output(GPIO9_USB_VBUS_EN, 0);
regulator_enable(em_x270_usb_ldo);
- gpio_set_value(usb_hub_reset, 1);
gpio_set_value(usb_hub_reset, 0);
+ gpio_set_value(usb_hub_reset, 1);
regulator_disable(em_x270_usb_ldo);
regulator_enable(em_x270_usb_ldo);
- gpio_set_value(usb_hub_reset, 1);
-
- /* enable VBUS */
- gpio_direction_output(GPIO9_USB_VBUS_EN, 1);
+ gpio_set_value(usb_hub_reset, 0);
+ gpio_set_value(GPIO9_USB_VBUS_EN, 1);
return 0;