ARM: OMAP: Add support for USB on OMAP34XX

Added support for USB on OMAP34XX.
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Vikram Pandita <vikram.pandita@ti.com>
Signed-off-by: Nishant Kamat <nskamat@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/Makefile

@@ -26,7 +26,8 @@ obj-$(CONFIG_MACH_OMAP_2430SDP)		+= board-2430sdp.o \
 					   board-2430sdp-flash.o \
 					   board-2430sdp-usb.o
 obj-$(CONFIG_MACH_OMAP_2430OSK)		+= board-2430osk.o
-obj-$(CONFIG_MACH_OMAP_3430SDP)		+= board-3430sdp.o
+obj-$(CONFIG_MACH_OMAP_3430SDP)		+= board-3430sdp.o \
+					   board-3430sdp-usb.o
 obj-$(CONFIG_MACH_OMAP_APOLLON)		+= board-apollon.o \
 					   board-apollon-mmc.o	\
 					   board-apollon-keys.o

arch/arm/mach-omap2/board-3430sdp-usb.c

+/*
+ * linux/arch/arm/mach-omap2/board-3430sdp-usb.c
+ *
+ * This file will contain the board specific details for the
+ * MENTOR USB OTG and Synopsys EHCI host controllers on OMAP3430
+ *
+ * Copyright (C) 2007 Texas Instruments
+ * Author: Vikram Pandita
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/usb/musb.h>
+
+#include <asm/arch/hardware.h>
+#include <asm/arch/usb.h>
+
+#ifdef CONFIG_USB_MUSB_SOC
+static struct resource musb_resources[] = {
+	[0] = {
+		.start	= OMAP34XX_HSUSB_OTG_BASE,
+		.end	= OMAP34XX_HSUSB_OTG_BASE + SZ_8K,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {	/* general IRQ */
+		.start	= INT_243X_HS_USB_MC,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {	/* DMA IRQ */
+		.start	= INT_243X_HS_USB_DMA,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct musb_hdrc_platform_data musb_plat = {
+#ifdef CONFIG_USB_MUSB_OTG
+	.mode		= MUSB_OTG,
+#elif defined(CONFIG_USB_MUSB_HDRC_HCD)
+	.mode		= MUSB_HOST,
+#elif defined(CONFIG_USB_GADGET_MUSB_HDRC)
+	.mode		= MUSB_PERIPHERAL,
+#endif
+	.multipoint	= 1,
+	.clock		= NULL,
+	.set_clock	= NULL,
+};
+
+static u64 musb_dmamask = ~(u32)0;
+
+static struct platform_device musb_device = {
+	.name		= "musb_hdrc",
+	.id		= 0,
+	.dev = {
+		.dma_mask		= &musb_dmamask,
+		.coherent_dma_mask	= 0xffffffff,
+		.platform_data		= &musb_plat,
+	},
+	.num_resources	= ARRAY_SIZE(musb_resources),
+	.resource	= musb_resources,
+};
+#endif
+
+void __init sdp3430_usb_init(void)
+{
+#ifdef CONFIG_USB_MUSB_SOC
+	if (platform_device_register(&musb_device) < 0) {
+		printk(KERN_ERR "Unable to register HS-USB (MUSB) device\n");
+		return;
+	}
+#endif
+}

arch/arm/mach-omap2/board-3430sdp.c

@@ -329,6 +329,7 @@ static void __init omap_3430sdp_init(void)
 				ARRAY_SIZE(sdp3430_spi_board_info));
 	ads7846_dev_init();
 	omap_serial_init();
+	sdp3430_usb_init();
 }
 
 static void __init omap_3430sdp_map_io(void)

include/asm-arm/arch-omap/board-3430sdp.h

@@ -29,6 +29,8 @@
 #ifndef __ASM_ARCH_OMAP_3430SDP_H
 #define __ASM_ARCH_OMAP_3430SDP_H
 
+extern void sdp3430_usb_init(void);
+
 #define DEBUG_BASE			0x08000000  /* debug board */
 
 /* Placeholder for 3430SDP specific defines */