[PATCH v2 4/9] PBL: fdt: refactor helper for reading nr of cells

[Michael Tretter]

Since libfdt now contains fdt_addresses, the fdt_find_mem function can
use the already existing helpers to read #size-cells and #address-cells.

Reviewed-by: Marco Felsch <m.fel...@pengutronix.de>
Signed-off-by: Michael Tretter <m.tret...@pengutronix.de>
---
Changes in v2:
- none
---
 pbl/fdt.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/pbl/fdt.c b/pbl/fdt.c
index 
8e4d1295074a6b8dc4ad07ad2ada5882148c9ce6..3b1783152a8cb81f3eda1187b2f7bf998c4addf4
 100644
--- a/pbl/fdt.c
+++ b/pbl/fdt.c
@@ -17,8 +17,8 @@ static const __be32 *fdt_parse_reg(const __be32 *reg, 
uint32_t n,
 
 void fdt_find_mem(const void *fdt, unsigned long *membase, unsigned long 
*memsize)
 {
-       const __be32 *nap, *nsp, *reg;
-       uint32_t na, ns;
+       const __be32 *reg;
+       int na, ns;
        uint64_t memsize64, membase64;
        int node, size;
 
@@ -28,26 +28,23 @@ void fdt_find_mem(const void *fdt, unsigned long *membase, 
unsigned long *memsiz
                goto err;
        }
 
-       /* Find the #address-cells and #size-cells properties */
        node = fdt_path_offset(fdt, "/");
        if (node < 0) {
                pr_err("Cannot find root node\n");
                goto err;
        }
 
-       nap = fdt_getprop(fdt, node, "#address-cells", &size);
-       if (!nap || (size != 4)) {
+       na = fdt_address_cells(fdt, node);
+       if (na < 0) {
                pr_err("Cannot find #address-cells property");
                goto err;
        }
-       na = fdt32_to_cpu(*nap);
 
-       nsp = fdt_getprop(fdt, node, "#size-cells", &size);
-       if (!nsp || (size != 4)) {
+       ns = fdt_size_cells(fdt, node);
+       if (ns < 0) {
                pr_err("Cannot find #size-cells property");
                goto err;
        }
-       ns = fdt32_to_cpu(*nsp);
 
        /* Find the memory range */
        node = fdt_node_offset_by_prop_value(fdt, -1, "device_type",

-- 
2.39.5