tree 5d54e7ffb276dc281d2b59af70f521c8810b302a
parent d344293a5b953eff1c8617e6b89703e82f7ca13f
author Dave Liu <daveliu@freescale.com> 1224770375 +0800
committer Wolfgang Denk <wd@denx.de> 1225409108 +0100

74xx: use r4 instead of r2 in lock_ram_in_cache and unlock_ram_in_cache

The patch is following the commit 392438406041415fe64ab8748ec5ab5ad01d1cf7

mpc86xx: use r4 instead of r2 in lock_ram_in_cache and unlock_ram_in_cache

This is needed in unlock_ram_in_cache() because it is called from C and
will corrupt the small data area anchor that is kept in R2.

lock_ram_in_cache() is modified similarly as good coding practice, but
is not called from C.

Signed-off-by: Nick Spence <nick.spence@freescale.com>

also, the r2 is used as global data pointer.

Signed-off-by: Dave Liu <daveliu@freescale.com>