OMAP4: Fix USB SPL Boot build errors

Signed-off-by: John Rigby <john.rigby@linaro.org>
diff --git a/arch/arm/cpu/armv7/omap-common/Makefile b/arch/arm/cpu/armv7/omap-common/Makefile
index a684611..11f944d 100644
--- a/arch/arm/cpu/armv7/omap-common/Makefile
+++ b/arch/arm/cpu/armv7/omap-common/Makefile
@@ -48,6 +48,9 @@
 ifdef CONFIG_SPL_MMC_SUPPORT
 COBJS	+= spl_mmc.o
 endif
+ifdef CONFIG_SPL_USB_SUPPORT
+COBJS	+= spl_usb.o
+endif
 endif
 
 ifndef CONFIG_SPL_BUILD
diff --git a/arch/arm/cpu/armv7/omap-common/spl.c b/arch/arm/cpu/armv7/omap-common/spl.c
index b54b362..f982b2b 100644
--- a/arch/arm/cpu/armv7/omap-common/spl.c
+++ b/arch/arm/cpu/armv7/omap-common/spl.c
@@ -106,29 +106,6 @@
 	image_entry((u32 *)boot_params_ptr_addr);
 }
 
-#ifdef CONFIG_SPL_DSU_SUPPORT
-extern int dsudownload(u32 *, u32 *);
-
-static void dsuload(void)
-{
-	u32 loadaddr;
-	u32 size;
-	int err;
-	struct image_header *header;
-
-	err = dsudownload(&loadaddr, &size);
-
-	if (err) {
-		serial_printf("usb download failed");
-		hang();
-	}
-	header = (struct image_header *)loadaddr;
-	parse_image_header(header);
-	memcpy((void *)image_load_addr, (void *)loadaddr, size); 
-	image_size = size;
-}
-#endif
-
 void jump_to_image_no_args(void) __attribute__ ((noreturn));
 void board_init_r(gd_t *id, ulong dummy)
 {
@@ -160,7 +137,7 @@
 #endif
 #ifdef CONFIG_SPL_DSU_SUPPORT
 	case BOOT_DEVICE_USB:
-		dsuload();
+		spl_dsu_load_image();
 		break;
 #endif
 	default:
diff --git a/arch/arm/cpu/armv7/omap-common/spl_usb.c b/arch/arm/cpu/armv7/omap-common/spl_usb.c
new file mode 100644
index 0000000..4edaf03
--- /dev/null
+++ b/arch/arm/cpu/armv7/omap-common/spl_usb.c
@@ -0,0 +1,55 @@
+/*
+ * (C) Copyright 2010
+ * Texas Instruments, <www.ti.com>
+ *
+ * Aneesh V <aneesh@ti.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <common.h>
+#include <asm/u-boot.h>
+#include <asm/utils.h>
+#include <asm/arch/sys_proto.h>
+#include <version.h>
+#include <asm/omap_common.h>
+#include <asm/arch/mmc_host_def.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_SPL_DSU_SUPPORT
+void spl_dsu_load_image(void)
+{
+	u32 loadaddr;
+	u32 size;
+	int err;
+	struct image_header *header;
+
+	err = dsudownload(&loadaddr, &size);
+
+	if (err) {
+		serial_printf("usb download failed");
+		hang();
+	}
+	header = (struct image_header *)loadaddr;
+	spl_parse_image_header(header);
+	memcpy((void *)loadaddr, (void *)spl_image.load_addr, spl_image.size); 
+}
+#endif
+
+
diff --git a/arch/arm/include/asm/omap_common.h b/arch/arm/include/asm/omap_common.h
index dcd4937..4af08f8 100644
--- a/arch/arm/include/asm/omap_common.h
+++ b/arch/arm/include/asm/omap_common.h
@@ -95,6 +95,10 @@
 /* MMC SPL functions */
 void spl_mmc_load_image(void);
 
+/* USB SPL functions */
+void spl_dsu_load_image(void);
+int dsudownload(u32 *, u32 *);
+
 #ifdef CONFIG_SPL_BOARD_INIT
 void spl_board_init(void);
 #endif