dect
/
linux-2.6
Archived
13
0
Fork 0
Code Releases Activity

[PATCH] ppc32: Fix static IO mapping for Freescale MPC52xx 

The current iomapping used MBAR_SIZE for the size argument of
io_block_mapping, resulting in a call to setbat with a size argument of 64k
which is invalid.

This patch correct this and maps the whole 0xf0000000->0xffffffff range so
that devices on the local bus are also included in the BAT mapping.

Thanks to Bernhard Kuhn from Metrowerks for pointing this out.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Sylvain Munaut 2006-01-06 00:11:34 -08:00 committed by Linus Torvalds
parent d62de3aa8a
commit 4aa7c80193
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/ppc/syslib/mpc52xx_setup.c
View File

@ -84,9 +84,11 @@ mpc52xx_set_bat(void)
void __init
mpc52xx_map_io(void)
{
/* Here we only map the MBAR */
/* Here we map the MBAR and the whole upper zone. MBAR is only
64k but we can't map only 64k with BATs. Map the whole
0xf0000000 range is ok and helps eventual lpb devices placed there */
io_block_mapping(
MPC52xx_MBAR_VIRT, MPC52xx_MBAR, MPC52xx_MBAR_SIZE, _PAGE_IO);
MPC52xx_MBAR_VIRT, MPC52xx_MBAR, 0x10000000, _PAGE_IO);
}