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device_tree: Increase FDT_MAX_SIZE to 1 MiB

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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).

Cc: qemu-stable@nongnu.org
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Message-id: 1523541337-23919-1-git-send-email-geert+renesas@glider.be
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Geert Uytterhoeven 2018-04-26 11:04:38 +01:00 • committed by Peter Maydell
parent 4743c23509
commit 14ec3cbd7c
1 changed files with 1 additions and 1 deletions
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2
device_tree.c
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@ -29,7 +29,7 @@
#include <libfdt.h>
#define FDT_MAX_SIZE 0x10000
#define FDT_MAX_SIZE 0x100000
void *create_device_tree(int *sizep)
{