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Subject[Patch v1] AM35xx: Craneboard: Add USB EHCI support
Date
From: Srinath <srinath@mistralsolutions.com>

AM3517/05 Craneboard has one EHCI interface on board using port1.

GPIO35 is used as power enable.
GPIO38 is used as port1 PHY reset.

Signed-off-by: Srinath <srinath@mistralsolutions.com>
---
arch/arm/mach-omap2/board-am3517crane.c | 21 +++++++++++++++++++++
1 files changed, 21 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-omap2/board-am3517crane.c b/arch/arm/mach-omap2/board-am3517crane.c
index 13ead33..0e1a806 100644
--- a/arch/arm/mach-omap2/board-am3517crane.c
+++ b/arch/arm/mach-omap2/board-am3517crane.c
@@ -28,8 +28,10 @@

#include <plat/board.h>
#include <plat/common.h>
+#include <plat/usb.h>

#include "mux.h"
+#include "control.h"

/* Board initialization */
static struct omap_board_config_kernel am3517_crane_config[] __initdata = {
@@ -53,10 +55,29 @@ static void __init am3517_crane_init_irq(void)
omap_gpio_init();
}

+static struct ehci_hcd_omap_platform_data ehci_pdata __initdata = {
+ .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
+ .port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN,
+ .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
+
+ .phy_reset = true,
+ .reset_gpio_port[0] = 38,
+ .reset_gpio_port[1] = -EINVAL,
+ .reset_gpio_port[2] = -EINVAL
+};
+
static void __init am3517_crane_init(void)
{
omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
omap_serial_init();
+
+ /* Configure GPIO for EHCI port */
+ omap_mux_init_gpio(35, OMAP_PIN_OUTPUT);
+ gpio_request(35, "usb_ehci_enable");
+ gpio_direction_output(35, 1);
+ gpio_set_value(35, 1);
+ omap_mux_init_gpio(38, OMAP_PIN_OUTPUT);
+ usb_ehci_init(&ehci_pdata);
}

MACHINE_START(CRANEBOARD, "AM3517/05 CRANEBOARD")
--
1.7.1.226.g770c5


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