mx31moboard: added usb xcvr reset for mx31moboard
Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/mach-mx3/mx31moboard.c b/arch/arm/mach-mx3/mx31moboard.c
index b86b8a7..53ce60b 100644
--- a/arch/arm/mach-mx3/mx31moboard.c
+++ b/arch/arm/mach-mx3/mx31moboard.c
@@ -16,6 +16,7 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/interrupt.h>
@@ -56,6 +57,8 @@
MX31_PIN_SD1_DATA1__SD1_DATA1, MX31_PIN_SD1_DATA0__SD1_DATA0,
MX31_PIN_SD1_CLK__SD1_CLK, MX31_PIN_SD1_CMD__SD1_CMD,
MX31_PIN_ATA_CS0__GPIO3_26, MX31_PIN_ATA_CS1__GPIO3_27,
+ /* USB reset */
+ MX31_PIN_GPIO1_0__GPIO1_0,
};
static struct physmap_flash_data mx31moboard_flash_data = {
@@ -143,6 +146,19 @@
.exit = moboard_sdhc1_exit,
};
+/*
+ * this pin is dedicated for all mx31moboard systems, so we do it here
+ */
+#define USB_RESET_B IOMUX_TO_GPIO(MX31_PIN_GPIO1_0)
+
+static void usb_xcvr_reset(void)
+{
+ gpio_request(USB_RESET_B, "usb-reset");
+ gpio_direction_output(USB_RESET_B, 0);
+ mdelay(1);
+ gpio_set_value(USB_RESET_B, 1);
+}
+
static struct platform_device *devices[] __initdata = {
&mx31moboard_flash,
};
@@ -168,6 +184,8 @@
mxc_register_device(&mxcsdhc_device0, &sdhc1_pdata);
+ usb_xcvr_reset();
+
switch (mx31moboard_baseboard) {
case MX31NOBOARD:
break;