[PATCH 4/9] ppc32: Fix static IO mapping for Freescale MPC52xx

[Sylvain Munaut]

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 at 246tNt.com>

---
commit ae62fed2708efa333d41f7b36893e5fdbd0f6730
tree a1a4da53edb2f235be6658558eeb606a0b2580e9
parent 1661f915e8bd58e52fe3326e038efe74068702e0
author Sylvain Munaut <tnt at 246tNt.com> Sun, 18 Dec 2005 11:13:15 +0100
committer Sylvain Munaut <tnt at 246tNt.com> Sun, 18 Dec 2005 11:13:15 +0100

 arch/ppc/syslib/mpc52xx_setup.c |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/ppc/syslib/mpc52xx_setup.c b/arch/ppc/syslib/mpc52xx_setup.c
index bb23745..a4a4b02 100644
--- a/arch/ppc/syslib/mpc52xx_setup.c
+++ b/arch/ppc/syslib/mpc52xx_setup.c
@@ -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);
 }