It is not uncommon for a contemporary FDT to be larger than 64 KiB,
leading to failures loading the device tree from sysfs:
qemu-system-aarch64: qemu_fdt_setprop: Couldn't set ...: FDT_ERR_NOSPACE
Hence increase the limit to 1 MiB, like on PPC.
For reference, the largest arm64 DTB created from the Linux sources is
ca. 75 KiB large (100 KiB when built with symbols/fixup support).
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
v3:
- Update example size figures,
v2:
- Enlarge from 128 KiB to 1 MiB, as suggested by Peter Maydell.
---
device_tree.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/device_tree.c b/device_tree.c
index 19458b32bf81e55e..52c3358a55838d33 100644
--- a/device_tree.c
+++ b/device_tree.c
@@ -29,7 +29,7 @@
#include <libfdt.h>
-#define FDT_MAX_SIZE 0x10000
+#define FDT_MAX_SIZE 0x100000
void *create_device_tree(int *sizep)
{
--
2.7.4
