powerpc: Make coff boot wrapper load the kernel at 8M

Previously it claimed 7MB starting at the 9M point and loaded the
kernel there.  That meant that prom_init put the flattened device
tree above 16M.  On the 601 that caused the early device tree scan
to fail, since only 16MB are mapped with BATs on the 601.  Moving
this down to 8MB allows prom_init to put the flattened device tree
between 15M and 16M, so it works on the 601.

Signed-off-by: Paul Mackerras <paulus@samba.org>

diff --git a/arch/ppc/boot/openfirmware/coffmain.c b/arch/ppc/boot/openfirmware/coffmain.c
index 04ba9d57e110627e8881a25348f7bb2a977ad9da..2da8855e2be0a2cce04a04516a65d5293775ee5c 100644 (file)
--- a/arch/ppc/boot/openfirmware/coffmain.c
+++ b/arch/ppc/boot/openfirmware/coffmain.c
@@ -38,7 +38,7 @@ static char heap[SCRATCH_SIZE];
 static unsigned long ram_start = 0;
 static unsigned long ram_end = 0x1000000;
 
-static unsigned long prog_start = 0x900000;
+static unsigned long prog_start = 0x800000;
 static unsigned long prog_size = 0x700000;
 
 typedef void (*kernel_start_t)(int, int, void *);