This patch adds a new 'mtdparts add' variant: add.e (with a synomym add.i). This
command variant adds a new partition to the mtdparts variable but also increases
the partitions size by skipping bad blocks and aggregating any additional bad
blocks found at the end of the partition.

Signed-off-by: Ben Gardiner <bengardi...@nanometrics.ca>

---

V2:
 * formatting: spaces after 'if' and 'for'
 * trailing whitespace removed

V3:
 * rebased to 54841ab50c20d6fa6c9cc3eb826989da3a22d934 of
   git://git.denx.de/u-boot.git
 * fix more checkpatch errors
 * updating copyright to include addition of add.e command
---
 common/cmd_mtdparts.c |   38 +++++++++++++++++++++++++++++++++++++-
 1 files changed, 37 insertions(+), 1 deletions(-)

diff --git a/common/cmd_mtdparts.c b/common/cmd_mtdparts.c
index c1adbd4..d57f9ad 100644
--- a/common/cmd_mtdparts.c
+++ b/common/cmd_mtdparts.c
@@ -26,6 +26,8 @@
  *   Added net partition size output to mtdparts list command.
  *   Ported 'dynamic partitions' support to current u-boot 'mtdparts spread'
  *   command. Current mtdparts variable is now used as input.
+ *   Add the 'add.e' mtdparts command. Dynamic partitions can be added one at
+ *   a time -- specified by size only.
  *
  *   $Id: cmdlinepart.c,v 1.17 2004/11/26 11:18:47 lavinen Exp $
  *   Copyright 2002 SYSGO Real-Time Solutions GmbH
@@ -1951,9 +1953,14 @@ int do_mtdparts(cmd_tbl_t *cmdtp, int flag, int argc, 
char * const argv[])
        }
 
        /* mtdparts add <mtd-dev> <size>[@<offset>] <name> [ro] */
-       if (((argc == 5) || (argc == 6)) && (strcmp(argv[1], "add") == 0)) {
+       if (((argc == 5) || (argc == 6)) && (strncmp(argv[1], "add", 3) == 0)) {
 #define PART_ADD_DESC_MAXLEN 64
                char tmpbuf[PART_ADD_DESC_MAXLEN];
+#if defined(CONFIG_CMD_MTDPARTS_SPREAD)
+               char *s;
+               struct mtd_info *mtd;
+               u32 next_offset;
+#endif
                u8 type, num, len;
                struct mtd_device *dev;
                struct mtd_device *dev_tmp;
@@ -1988,11 +1995,36 @@ int do_mtdparts(cmd_tbl_t *cmdtp, int flag, int argc, 
char * const argv[])
                debug("+ %s\t%d\t%s\n", MTD_DEV_TYPE(dev->id->type),
                                dev->id->num, dev->id->mtd_id);
 
+#if defined(CONFIG_CMD_MTDPARTS_SPREAD)
+               s = strchr(argv[1], '.');
+
+               if (get_mtd_info(dev->id->type, dev->id->num, &mtd))
+                       return 1;
+#endif
+
                if ((dev_tmp = device_find(dev->id->type, dev->id->num)) == 
NULL) {
+#if defined(CONFIG_CMD_MTDPARTS_SPREAD)
+                       if (!strcmp(s, ".e") || !strcmp(s, ".i")) {
+                               p = list_entry(dev->parts.next,
+                                              struct part_info, link);
+                               spread_partition(mtd, p, &next_offset);
+
+                               debug("increased %s to %d bytes\n", p->name,
+                                                                   p->size);
+                       }
+#endif
                        device_add(dev);
                } else {
                        /* merge new partition with existing ones*/
                        p = list_entry(dev->parts.next, struct part_info, link);
+#if defined(CONFIG_CMD_MTDPARTS_SPREAD)
+                       if (!strcmp(s, ".e") || !strcmp(s, ".i")) {
+                               spread_partition(mtd, p, &next_offset);
+
+                               debug("increased %s to %d bytes\n", p->name,
+                                                                   p->size);
+                       }
+#endif
                        if (part_add(dev_tmp, p) != 0) {
                                device_del(dev);
                                return 1;
@@ -2042,6 +2074,10 @@ U_BOOT_CMD(
        "    - delete partition (e.g. part-id = nand0,1)\n"
        "mtdparts add <mtd-dev> <size>[@<offset>] [<name>] [ro]\n"
        "    - add partition\n"
+#if defined(CONFIG_CMD_MTDPARTS_SPREAD)
+       "mtdparts add.e <mtd-dev> <size>[@<offset>] [<name>] [ro]\n"
+       "    - add partition, padding size by skipping bad blocks\n"
+#endif
        "mtdparts default\n"
        "    - reset partition table to defaults\n"
 #if defined(CONFIG_CMD_MTDPARTS_SPREAD)
-- 
1.7.0.4

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