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authorJoe Schaack <jschaack@xes-inc.com>2013-02-22 02:29:45 +0400
committerDavid Woodhouse <David.Woodhouse@intel.com>2013-04-05 15:05:53 +0400
commit05ff8c258c76dd469232a03ec8d45f7e7267e0ac (patch)
treebbecfe3fc604264c90c6037477120d520d594ef4 /drivers/mtd/ofpart.c
parente66e280c36e09e4573089862e7dc2ade9e680088 (diff)
downloadlinux-05ff8c258c76dd469232a03ec8d45f7e7267e0ac.tar.xz
mtd: ofpart: support partitions of 4 GiB and larger
Previously, partitions were limited to less than 4 GiB in size because the address and size were read as 32-bit values. Add support for 64-bit values to support devices of 4 GiB and larger. Signed-off-by: Joe Schaack <jschaack@xes-inc.com> Signed-off-by: Nate Case <ncase@xes-inc.com> Signed-off-by: Aaron Sierra <asierra@xes-inc.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd/ofpart.c')
-rw-r--r--drivers/mtd/ofpart.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/mtd/ofpart.c b/drivers/mtd/ofpart.c
index 30bd907a260a..553d6d6d5603 100644
--- a/drivers/mtd/ofpart.c
+++ b/drivers/mtd/ofpart.c
@@ -55,6 +55,7 @@ static int parse_ofpart_partitions(struct mtd_info *master,
while ((pp = of_get_next_child(node, pp))) {
const __be32 *reg;
int len;
+ int a_cells, s_cells;
reg = of_get_property(pp, "reg", &len);
if (!reg) {
@@ -62,8 +63,10 @@ static int parse_ofpart_partitions(struct mtd_info *master,
continue;
}
- (*pparts)[i].offset = be32_to_cpu(reg[0]);
- (*pparts)[i].size = be32_to_cpu(reg[1]);
+ a_cells = of_n_addr_cells(pp);
+ s_cells = of_n_size_cells(pp);
+ (*pparts)[i].offset = of_read_number(reg, a_cells);
+ (*pparts)[i].size = of_read_number(reg + a_cells, s_cells);
partname = of_get_property(pp, "label", &len);
if (!partname)