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| author | Nick Spence <nick.spence@freescale.com> | 2008-08-28 14:09:15 -0700 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2008-10-13 13:57:14 +0200 |
| commit | 392438406041415fe64ab8748ec5ab5ad01d1cf7 (patch) | |
| tree | e2f9da3de8cd40a451f10c2894077ad932d2ae36 /cpu/mpc86xx/start.S | |
| parent | 5c7cbcd34d0ee566875a4fd0f2a3e5a62bba921c (diff) | |
| download | u-boot-imx-392438406041415fe64ab8748ec5ab5ad01d1cf7.zip u-boot-imx-392438406041415fe64ab8748ec5ab5ad01d1cf7.tar.gz u-boot-imx-392438406041415fe64ab8748ec5ab5ad01d1cf7.tar.bz2 | |
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>
Diffstat (limited to 'cpu/mpc86xx/start.S')
| -rw-r--r-- | cpu/mpc86xx/start.S | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/cpu/mpc86xx/start.S b/cpu/mpc86xx/start.S index 03f2128..90a1b83 100644 --- a/cpu/mpc86xx/start.S +++ b/cpu/mpc86xx/start.S @@ -895,9 +895,9 @@ lock_ram_in_cache: */ lis r3, (CFG_INIT_RAM_ADDR & ~31)@h ori r3, r3, (CFG_INIT_RAM_ADDR & ~31)@l - li r2, ((CFG_INIT_RAM_END & ~31) + \ + li r4, ((CFG_INIT_RAM_END & ~31) + \ (CFG_INIT_RAM_ADDR & 31) + 31) / 32 - mtctr r2 + mtctr r4 1: dcbz r0, r3 addi r3, r3, 32 @@ -930,9 +930,9 @@ unlock_ram_in_cache: /* invalidate the INIT_RAM section */ lis r3, (CFG_INIT_RAM_ADDR & ~31)@h ori r3, r3, (CFG_INIT_RAM_ADDR & ~31)@l - li r2, ((CFG_INIT_RAM_END & ~31) + \ + li r4, ((CFG_INIT_RAM_END & ~31) + \ (CFG_INIT_RAM_ADDR & 31) + 31) / 32 - mtctr r2 + mtctr r4 1: icbi r0, r3 addi r3, r3, 32 bdnz 1b |