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powerpc: Fix bootm to boot up again with a Ramdisk

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Commit 2a1a2cb6 didnt remove the dummy mem reservation in fdt_chosen,
and this stopped Linux from booting with a Ramdisk. This patch fixes
this, by deleting the useless dummy mem reservation.

When booting with a Ramdisk, a fix offset FDT_RAMDISK_OVERHEAD is now
added to of_size, so we dont need anymore a dummy mem reservation.

I measured the value of FDT_RAMDISK_OVERHEAD on a MPC8270 based
system (=0x44 bytes) and rounded it up to 0x80).

Signed-off-by: Heiko Schocher <hs@denx.de>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Heiko Schocher
2008-09-11 08:11:23 +02:00
committed by Wolfgang Denk
parent fc9c1727b5
commit 56844a22b7
5 changed files with 9 additions and 7 deletions
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include/fdt.h
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@@ -57,4 +57,6 @@ struct fdt_property {
#define FDT_V16_SIZE FDT_V3_SIZE
#define FDT_V17_SIZE (FDT_V16_SIZE + sizeof(uint32_t))
/* adding a ramdisk needs 0x44 bytes in version 2008.10 */
#define FDT_RAMDISK_OVERHEAD 0x80
#endif /* _FDT_H */