From 9a310d21196f38f6ad0ad146057548653e495c09 Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Tue, 15 Jan 2008 17:54:43 -0600 Subject: [MTD] Factor out OF partition support from the NOR driver. Signed-off-by: Scott Wood Signed-off-by: David Woodhouse --- drivers/mtd/maps/physmap_of.c | 89 +++++++++++++------------------------------ 1 file changed, 27 insertions(+), 62 deletions(-) (limited to 'drivers/mtd/maps') diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c index d4bcd3f8c57c..49acd4171893 100644 --- a/drivers/mtd/maps/physmap_of.c +++ b/drivers/mtd/maps/physmap_of.c @@ -80,65 +80,6 @@ static int parse_obsolete_partitions(struct of_device *dev, return nr_parts; } - -static int __devinit parse_partitions(struct of_flash *info, - struct of_device *dev) -{ - const char *partname; - static const char *part_probe_types[] - = { "cmdlinepart", "RedBoot", NULL }; - struct device_node *dp = dev->node, *pp; - int nr_parts, i; - - /* First look for RedBoot table or partitions on the command - * line, these take precedence over device tree information */ - nr_parts = parse_mtd_partitions(info->mtd, part_probe_types, - &info->parts, 0); - if (nr_parts > 0) - return nr_parts; - - /* First count the subnodes */ - nr_parts = 0; - for (pp = of_get_next_child(dp, NULL); pp; - pp = of_get_next_child(dp, pp)) - nr_parts++; - - if (nr_parts == 0) - return parse_obsolete_partitions(dev, info, dp); - - info->parts = kzalloc(nr_parts * sizeof(*info->parts), - GFP_KERNEL); - if (!info->parts) - return -ENOMEM; - - for (pp = of_get_next_child(dp, NULL), i = 0; pp; - pp = of_get_next_child(dp, pp), i++) { - const u32 *reg; - int len; - - reg = of_get_property(pp, "reg", &len); - if (!reg || (len != 2*sizeof(u32))) { - of_node_put(pp); - dev_err(&dev->dev, "Invalid 'reg' on %s\n", - dp->full_name); - kfree(info->parts); - info->parts = NULL; - return -EINVAL; - } - info->parts[i].offset = reg[0]; - info->parts[i].size = reg[1]; - - partname = of_get_property(pp, "label", &len); - if (!partname) - partname = of_get_property(pp, "name", &len); - info->parts[i].name = (char *)partname; - - if (of_get_property(pp, "read-only", &len)) - info->parts[i].mask_flags = MTD_WRITEABLE; - } - - return nr_parts; -} #else /* MTD_PARTITIONS */ #define OF_FLASH_PARTS(info) (0) #define parse_partitions(info, dev) (0) @@ -213,6 +154,10 @@ static struct mtd_info * __devinit obsolete_probe(struct of_device *dev, static int __devinit of_flash_probe(struct of_device *dev, const struct of_device_id *match) { +#ifdef CONFIG_MTD_PARTITIONS + static const char *part_probe_types[] + = { "cmdlinepart", "RedBoot", NULL }; +#endif struct device_node *dp = dev->node; struct resource res; struct of_flash *info; @@ -275,13 +220,33 @@ static int __devinit of_flash_probe(struct of_device *dev, } info->mtd->owner = THIS_MODULE; - err = parse_partitions(info, dev); +#ifdef CONFIG_MTD_PARTITIONS + /* First look for RedBoot table or partitions on the command + * line, these take precedence over device tree information */ + err = parse_mtd_partitions(info->mtd, part_probe_types, + &info->parts, 0); if (err < 0) - goto err_out; + return err; + +#ifdef CONFIG_MTD_OF_PARTS + if (err == 0) { + err = of_mtd_parse_partitions(&dev->dev, info->mtd, + dp, &info->parts); + if (err < 0) + return err; + } +#endif + + if (err == 0) { + err = parse_obsolete_partitions(dev, info, dp); + if (err < 0) + return err; + } if (err > 0) - add_mtd_partitions(info->mtd, OF_FLASH_PARTS(info), err); + add_mtd_partitions(info->mtd, info->parts, err); else +#endif add_mtd_device(info->mtd); return 0; -- cgit v1.2.2