s5pc1xx: checking cpu revision at bootloader downloading

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

diff --git a/common/cmd_usbd.c b/common/cmd_usbd.c
index 20d2d36..507f718 100644 (file)
--- a/common/cmd_usbd.c
+++ b/common/cmd_usbd.c
@@ -12,7 +12,7 @@
 #include <malloc.h>
 
 /* version of USB Downloader Application */
-#define APP_VERSION    "1.3.3"
+#define APP_VERSION    "1.3.4"
 
 #ifdef CONFIG_CMD_MTDPARTS
 #include <jffs2/load_kernel.h>
@@ -720,6 +720,21 @@ static int process_data(struct usbd_ops *usbd)
        /* Erase and Write to NAND */
        switch (part_id) {
        case BOOT_PART_ID:
+#ifdef CONFIG_S5PC1XX
+               /* Workaround: for prevent revision mismatch */
+               if (cpu_is_s5pc110()) {
+                       int img_rev = 1;
+                       long *img_header = down_ram_addr;
+
+                       if (*img_header == 0xea000012)
+                               img_rev = 0;
+
+                       if (img_rev != s5pc1xx_get_cpu_rev()) {
+                               printf("CPU revision mismatch!\n");
+                               return 0;
+                       }
+               }
+#endif
 #if defined(CONFIG_ENV_IS_IN_NAND) || defined(CONFIG_ENV_IS_IN_ONENAND)
                /* Erase the environment also when write bootloader */
                {