cmd_nand: add nand write.trimffs command

[karo-tx-uboot.git] / common / cmd_nand.c

diff --git a/common/cmd_nand.c b/common/cmd_nand.c
index 27a88796eec613aa6d70b2fd016f9f2c177a04c4..b767cd287734b7289c79807ada9f157e5fa657cc 100644 (file)
--- a/common/cmd_nand.c
+++ b/common/cmd_nand.c
@@ -575,6 +575,16 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
                        else
                                ret = nand_write_skip_bad(nand, off, &rwsize,
                                                          (u_char *)addr, 0);
+#ifdef CONFIG_CMD_NAND_TRIMFFS
+               } else if (!strcmp(s, ".trimffs")) {
+                       if (read) {
+                               printf("Unknown nand command suffix '%s'\n", s);
+                               return 1;
+                       }
+                       ret = nand_write_skip_bad(nand, off, &rwsize,
+                                               (u_char *)addr,
+                                               WITH_DROP_FFS);
+#endif
 #ifdef CONFIG_CMD_NAND_YAFFS
                } else if (!strcmp(s, ".yaffs")) {
                        if (read) {
@@ -689,6 +699,12 @@ U_BOOT_CMD(
        "nand write - addr off|partition size\n"
        "    read/write 'size' bytes starting at offset 'off'\n"
        "    to/from memory address 'addr', skipping bad blocks.\n"
+#ifdef CONFIG_CMD_NAND_TRIMFFS
+       "nand write.trimffs - addr off|partition size\n"
+       "    write 'size' bytes starting at offset 'off' from memory address\n"
+       "    'addr', skipping bad blocks and dropping any pages at the end\n"
+       "    of eraseblocks that contain only 0xFF\n"
+#endif
 #ifdef CONFIG_CMD_NAND_YAFFS
        "nand write.yaffs - addr off|partition size\n"
        "    write 'size' bytes starting at offset 'off' with yaffs format\n"