When using fdt_fixup_mtdparts() offset and length cell sizes are limited to 4 bytes (1 cell). However if the mtd device is bigger then 4GiB, then #address-cells and #size-cells are 8 bytes (2 cells) [1].
This patch read #size-cells and uses either fdt32_t or fdt64_t cell size. The default is fdt32_t.
[1] Documentation/devicetree/bindings/mtd/partition.txt
Signed-off-by: Stefan Mavrodiev stefan@olimex.com --- Changes for v2: - Use fdt_setprop_u64() and ..._u32() instead of fdt_setprop() - Add size value using fdt_appendprop_u64() and ..._u32()
common/fdt_support.c | 31 ++++++++++++++++++++++--------- 1 file changed, 22 insertions(+), 9 deletions(-)
diff --git a/common/fdt_support.c b/common/fdt_support.c index 42583e3ed8..1c1a954829 100644 --- a/common/fdt_support.c +++ b/common/fdt_support.c @@ -724,11 +724,6 @@ int fdt_increase_size(void *fdt, int add_len) #include <jffs2/load_kernel.h> #include <mtd_node.h>
-struct reg_cell { - unsigned int r0; - unsigned int r1; -}; - static int fdt_del_subnodes(const void *blob, int parent_offset) { int off, ndepth; @@ -787,15 +782,22 @@ int fdt_node_set_part_info(void *blob, int parent_offset, { struct list_head *pentry; struct part_info *part; - struct reg_cell cell; int off, ndepth = 0; int part_num, ret; + int sizecell; char buf[64];
ret = fdt_del_partitions(blob, parent_offset); if (ret < 0) return ret;
+ /* + * Check if size/address is 1 or 2 cells. + * We assume #address-cells and #size-cells have same value. + */ + sizecell = fdt_getprop_u32_default_node(blob, parent_offset, + 0, "#size-cells", 1); + /* * Check if it is nand {}; subnode, adjust * the offset in this case @@ -844,10 +846,21 @@ add_ro: goto err_prop; }
- cell.r0 = cpu_to_fdt32(part->offset); - cell.r1 = cpu_to_fdt32(part->size); add_reg: - ret = fdt_setprop(blob, newoff, "reg", &cell, sizeof(cell)); + if (sizecell == 2) { + ret = fdt_setprop_u64(blob, newoff, + "reg", part->offset); + if (!ret) + ret = fdt_appendprop_u64(blob, newoff, + "reg", part->size); + } else { + ret = fdt_setprop_u32(blob, newoff, + "reg", part->offset); + if (!ret) + ret = fdt_appendprop_u32(blob, newoff, + "reg", part->size); + } + if (ret == -FDT_ERR_NOSPACE) { ret = fdt_increase_size(blob, 512); if (!ret)