From: Thierry Reding <tred...@nvidia.com>
Memory banks with address 0 and size 0 are empty and should not be
passed to the OS via device tree.
Signed-off-by: Thierry Reding <tred...@nvidia.com>
---
common/fdt_support.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/common/fdt_support.c b/common/fdt_support.c
index 724452d75452..8b33f6773d27 100644
--- a/common/fdt_support.c
+++ b/common/fdt_support.c
@@ -457,7 +457,7 @@ int fdt_record_loadable(void *blob, u32 index, const char
*name,
int fdt_fixup_memory_banks(void *blob, u64 start[], u64 size[], int banks)
{
int err, nodeoffset;
- int len;
+ int len, i;
u8 tmp[MEMORY_BANKS_MAX * 16]; /* Up to 64-bit address + 64-bit size */
if (banks > MEMORY_BANKS_MAX) {
@@ -489,6 +489,12 @@ int fdt_fixup_memory_banks(void *blob, u64 start[], u64
size[], int banks)
if (!banks)
return 0;
+ for (i = 0; i < banks; i++)
+ if (start[i] == 0 && size[i] == 0)
+ break;
+
+ banks = i;
+
len = fdt_pack_reg(blob, tmp, start, size, banks);
err = fdt_setprop(blob, nodeoffset, "reg", tmp, len);
--
2.15.1
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