diff options
| author | Maulik Mankad <x0082077@ti.com> | 2009-10-29 11:34:40 +0530 |
|---|---|---|
| committer | Santosh Shilimkar <santosh.shilimkar@ti.com> | 2009-10-31 19:29:35 +0530 |
| commit | e34268fc6c5b48c85a9fb7d0d34aebb3a2d5e1c3 (patch) | |
| tree | 19beb0f4902a7361ea14d6037e8b30effee59738 /arch/arm/mach-omap2 | |
| parent | 0945108d4b814c6691a5ea143601a48e66fd521f (diff) | |
OMAP: EHCI: GPIO Hack for PHY reset issue
Signed-off-by: Maulik Mankad <x0082077@ti.com>
Diffstat (limited to 'arch/arm/mach-omap2')
| -rw-r--r-- | arch/arm/mach-omap2/usb-ehci.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/usb-ehci.c b/arch/arm/mach-omap2/usb-ehci.c index 0a868ac5965f..1621e048c135 100644 --- a/arch/arm/mach-omap2/usb-ehci.c +++ b/arch/arm/mach-omap2/usb-ehci.c @@ -18,6 +18,7 @@ #include <linux/types.h> #include <linux/errno.h> #include <linux/delay.h> +#include <linux/gpio.h> #include <linux/platform_device.h> #include <linux/clk.h> #include <asm/io.h> @@ -381,6 +382,18 @@ void __init usb_ehci_init(enum ehci_hcd_omap_mode phy_mode, if (cpu_is_omap34xx()) setup_ehci_io_mux(phy_mode); +#define USBHOST_PORT1_GPIO 57 +#define USBHOST_PORT2_GPIO 61 + /* EHCI PHY Reset hacks */ + gpio_request(USBHOST_PORT1_GPIO, "USB1 PHY RESET"); + gpio_direction_output(USBHOST_PORT1_GPIO, 1); + gpio_request(USBHOST_PORT2_GPIO, "USB2 PHY RESET"); + gpio_direction_output(USBHOST_PORT2_GPIO, 1); + udelay(500); + gpio_set_value(USBHOST_PORT1_GPIO, 0); + gpio_set_value(USBHOST_PORT2_GPIO, 0); + + if (platform_device_register(&ehci_device) < 0) { printk(KERN_ERR "Unable to register HS-USB (EHCI) device\n"); return; |