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[U-Boot,v2,03/15] fdt: Correct fdt_get_base_address()

Message ID 20170704193133.87092-4-sjg@chromium.org
State Accepted
Delegated to: Jaehoon Chung
Headers show

Commit Message

Simon Glass July 4, 2017, 7:31 p.m. UTC
This function appears to obtain the value of the 'ranges' property rather
than 'reg'. As such it does not behave as documented or expected.

In addition it picks up the second field of the property which is the size
(with prop += naddr) rather than the first which is the address.

Fix it.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 common/fdt_support.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)
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Patch

diff --git a/common/fdt_support.c b/common/fdt_support.c
index 5aa8e3422e..7ccf8b19fd 100644
--- a/common/fdt_support.c
+++ b/common/fdt_support.c
@@ -1464,14 +1464,11 @@  int fdt_verify_alias_address(void *fdt, int anode, const char *alias, u64 addr)
 u64 fdt_get_base_address(const void *fdt, int node)
 {
 	int size;
-	u32 naddr;
 	const fdt32_t *prop;
 
-	naddr = fdt_address_cells(fdt, node);
+	prop = fdt_getprop(fdt, node, "reg", &size);
 
-	prop = fdt_getprop(fdt, node, "ranges", &size);
-
-	return prop ? fdt_translate_address(fdt, node, prop + naddr) : 0;
+	return prop ? fdt_translate_address(fdt, node, prop) : 0;
 }
 
 /*