1 files changed, 58 insertions, 0 deletions
diff --git a/common/spl/spl_usb.c b/common/spl/spl_usb.c
new file mode 100644
index 0000000..53a9043
--- /dev/null
+++ b/common/spl/spl_usb.c
@@ -0,0 +1,58 @@
+/*
+ * (C) Copyright 2014
+ * Texas Instruments, <www.ti.com>
+ *
+ * Dan Murphy <dmurphy@ti.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ *
+ * Derived work from spl_mmc.c
+ */
+
+#include <common.h>
+#include <spl.h>
+#include <asm/u-boot.h>
+#include <usb.h>
+#include <fat.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#ifdef CONFIG_USB_STORAGE
+static int usb_stor_curr_dev = -1; /* current device */
+#endif
+
+void spl_usb_load_image(void)
+{
+	int err;
+	block_dev_desc_t *stor_dev;
+
+	usb_stop();
+	err = usb_init();
+	if (err) {
+#ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
+		printf("%s: usb init failed: err - %d\n", __func__, err);
+#endif
+		hang();
+	}
+
+#ifdef CONFIG_USB_STORAGE
+	/* try to recognize storage devices immediately */
+	usb_stor_curr_dev = usb_stor_scan(1);
+	stor_dev = usb_stor_get_dev(usb_stor_curr_dev);
+#endif
+
+	debug("boot mode - FAT\n");
+
+#ifdef CONFIG_SPL_OS_BOOT
+		if (spl_start_uboot() || spl_load_image_fat_os(stor_dev,
+								CONFIG_SYS_USB_FAT_BOOT_PARTITION))
+#endif
+		err = spl_load_image_fat(stor_dev,
+				CONFIG_SYS_USB_FAT_BOOT_PARTITION,
+				CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME);
+
+		if (err) {
+			puts("Error loading USB device\n");
+			hang();
+		}
+}