s5p: cmd_mmc: set zero value of random address for erase

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>

diff --git a/common/cmd_mmc.c b/common/cmd_mmc.c
index 345271f..e1bc123 100644 (file)
--- a/common/cmd_mmc.c
+++ b/common/cmd_mmc.c
@@ -276,20 +276,31 @@ int do_mmcops(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
                        int dev = simple_strtoul(argv[2], NULL, 10);
                        u32 blk = simple_strtoul(argv[3], NULL, 16);
                        u32 cnt = simple_strtoul(argv[4], NULL, 16);
-                       u32 n;
+                       u32 n, i, max_cnt;
                        struct mmc *mmc = find_mmc_device(dev);
                        void *addr = (void *)CONFIG_SYS_SDRAM_BASE + 0x02200000;
 
+                       /* clear random address (10 blocks)*/
+                       memset((void *)addr, 0, 0x1400);
+
                        if (!mmc)
                                return 1;
 
+                       if (cnt < 10)
+                               max_cnt = cnt;
+                       else
+                               max_cnt = 10;
+
                        printf("\nMMC erase: dev # %d, block # %d, count %d ... ",
                                dev, blk, cnt);
 
-                       n = mmc->block_dev.block_write(dev, blk, cnt, addr);
+                       for (i = 0; i < cnt; i++) {
+                               n = mmc->block_dev.block_write(dev, blk, max_cnt, addr);
+                               blk += n;
+                       }
 
                        printf("%d blocks erased: %s\n",
-                               n, (n == cnt) ? "OK" : "ERROR");
+                               i, (i == cnt) ? "OK" : "ERROR");
 
                } else
                        rc = cmd_usage(cmdtp);