usbd: add download mode

Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

diff --git a/common/cmd_usbd.c b/common/cmd_usbd.c
index e22d0dc..675203e 100644 (file)
--- a/common/cmd_usbd.c
+++ b/common/cmd_usbd.c
@@ -37,6 +37,8 @@ static unsigned char yaffs_data[2112];
 
 static unsigned long down_ram_addr;
 
+static int down_mode;
+
 /* cpu/${CPU} dependent */
 extern void do_reset(void);
 
@@ -722,7 +724,7 @@ static int process_data(struct usbd_ops *usbd)
        case BOOT_PART_ID:
 #ifdef CONFIG_S5PC1XX
                /* Workaround: for prevent revision mismatch */
-               if (cpu_is_s5pc110()) {
+               if (cpu_is_s5pc110() && (down_mode != MODE_FORCE)) {
                        int img_rev = 1;
                        long *img_header = (long *)down_ram_addr;
 
@@ -831,7 +833,12 @@ int do_usbd_down(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
        struct usbd_ops *usbd;
        int err;
 
-       printf("USB Downloader v%s\n", APP_VERSION);
+       if (argc > 1)
+               down_mode = simple_strtoul(argv[1], NULL, 10);
+       else
+               down_mode = MODE_NORMAL;
+
+       printf("USB Downloader v%s (%d)\n", APP_VERSION, down_mode);
 
        /* get partition info */
        err = get_part_info();
@@ -880,8 +887,8 @@ int do_usbd_down(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
        return 0;
 }
 
-U_BOOT_CMD(usbdown, 3, 0, do_usbd_down,
-       "initialize USB device and ready to receive"
-               " for Windows server (specific)\n",
-       "[download address]\n"
+U_BOOT_CMD(usbdown, CONFIG_SYS_MAXARGS, 1, do_usbd_down,
+       "Initialize USB device and Run USB Downloader (specific)",
+       "- normal mode\n"
+       "usbdown mode - specific mode (0: NORAML, 1: FORCE)\n"
 );

diff --git a/include/usbd.h b/include/usbd.h
index 0ea1be9..6187af9 100644 (file)
--- a/include/usbd.h
+++ b/include/usbd.h
@@ -61,6 +61,12 @@ enum {
        STATUS_ERROR,
 };
 
+/* download mode definition */
+enum {
+       MODE_NORMAL = 0,
+       MODE_FORCE,
+};
+
 /*
  * USB Downloader Operations
  * All functions and valuable are mandatory