diff options
Diffstat (limited to 'drivers/mtd/mtd_uboot.c')
-rw-r--r-- | drivers/mtd/mtd_uboot.c | 106 |
1 files changed, 62 insertions, 44 deletions
diff --git a/drivers/mtd/mtd_uboot.c b/drivers/mtd/mtd_uboot.c index c53ec657a3..4843cf1b84 100644 --- a/drivers/mtd/mtd_uboot.c +++ b/drivers/mtd/mtd_uboot.c @@ -198,53 +198,11 @@ static void mtd_del_all_parts(void) } while (ret > 0); } -int mtd_probe_devices(void) +static int parse_mtdparts(const char *mtdparts, const char *mtdids) { - static char *old_mtdparts; - static char *old_mtdids; - const char *mtdparts = get_mtdparts(); - const char *mtdids = get_mtdids(); - const char *mtdparts_next = mtdparts; + const char *mtdparts_next; struct mtd_info *mtd; - mtd_probe_uclass_mtd_devs(); - - /* - * Check if mtdparts/mtdids changed, if the MTD dev list was updated - * or if our previous attempt to delete existing partititions failed. - * In any of these cases we want to update the partitions, otherwise, - * everything is up-to-date and we can return 0 directly. - */ - if ((!mtdparts && !old_mtdparts && !mtdids && !old_mtdids) || - (mtdparts && old_mtdparts && mtdids && old_mtdids && - !mtd_dev_list_updated() && !mtd_del_all_parts_failed && - !strcmp(mtdparts, old_mtdparts) && - !strcmp(mtdids, old_mtdids))) - return 0; - - /* Update the local copy of mtdparts */ - free(old_mtdparts); - free(old_mtdids); - old_mtdparts = strdup(mtdparts); - old_mtdids = strdup(mtdids); - - /* - * Remove all old parts. Note that partition removal can fail in case - * one of the partition is still being used by an MTD user, so this - * does not guarantee that all old partitions are gone. - */ - mtd_del_all_parts(); - - /* - * Call mtd_dev_list_updated() to clear updates generated by our own - * parts removal loop. - */ - mtd_dev_list_updated(); - - /* If either mtdparts or mtdids is empty, then exit */ - if (!mtdparts || !mtdids) - return 0; - /* Start the parsing by ignoring the extra 'mtdparts=' prefix, if any */ if (!strncmp(mtdparts, "mtdparts=", sizeof("mtdparts=") - 1)) mtdparts += 9; @@ -343,6 +301,66 @@ int mtd_probe_devices(void) put_mtd_device(mtd); } + return 0; +} + +int mtd_probe_devices(void) +{ + static char *old_mtdparts; + static char *old_mtdids; + const char *mtdparts = get_mtdparts(); + const char *mtdids = get_mtdids(); + struct mtd_info *mtd; + + mtd_probe_uclass_mtd_devs(); + + /* + * Check if mtdparts/mtdids changed, if the MTD dev list was updated + * or if our previous attempt to delete existing partititions failed. + * In any of these cases we want to update the partitions, otherwise, + * everything is up-to-date and we can return 0 directly. + */ + if ((!mtdparts && !old_mtdparts && !mtdids && !old_mtdids) || + (mtdparts && old_mtdparts && mtdids && old_mtdids && + !mtd_dev_list_updated() && !mtd_del_all_parts_failed && + !strcmp(mtdparts, old_mtdparts) && + !strcmp(mtdids, old_mtdids))) + return 0; + + /* Update the local copy of mtdparts */ + free(old_mtdparts); + free(old_mtdids); + old_mtdparts = strdup(mtdparts); + old_mtdids = strdup(mtdids); + + /* + * Remove all old parts. Note that partition removal can fail in case + * one of the partition is still being used by an MTD user, so this + * does not guarantee that all old partitions are gone. + */ + mtd_del_all_parts(); + + /* + * Call mtd_dev_list_updated() to clear updates generated by our own + * parts removal loop. + */ + mtd_dev_list_updated(); + + /* If both mtdparts and mtdids are non-empty, parse */ + if (mtdparts && mtdids) { + if (parse_mtdparts(mtdparts, mtdids) < 0) + printf("Failed parsing MTD partitions from mtdparts!\n"); + } + + /* Fallback to OF partitions */ + mtd_for_each_device(mtd) { + if (list_empty(&mtd->partitions)) { + if (add_mtd_partitions_of(mtd) < 0) + printf("Failed parsing MTD %s OF partitions!\n", + mtd->name); + } + } + /* * Call mtd_dev_list_updated() to clear updates generated by our own * parts registration loop. |