[OpenBIOS] [PATCH 3/6] ppc: Fix RAM top

[Andreas Färber]

The hash base is not get_rom_base() - HASH_SIZE. It gets rounded down,
depending on the PVR, so read its true value from SDR1.

According to the illustration in start.S, the stack is supposed to be 64 KiB.

Signed-off-by: Andreas Färber 
---
 arch/ppc/qemu/ofmem.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/ppc/qemu/ofmem.c b/arch/ppc/qemu/ofmem.c
index 3ec25c3..500752b 100644
--- a/arch/ppc/qemu/ofmem.c
+++ b/arch/ppc/qemu/ofmem.c
@@ -86,7 +86,7 @@ get_rom_base( void )
 unsigned long
 get_ram_top( void )
 {
-	return get_rom_base() - HASH_SIZE - (32 + 32 + 64) * 1024;
+	return get_hash_base() - (32 + 64 + 64) * 1024;
 }

unsigned long