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[ARM] 4864/1: Enable write buffer coalescing on IOP

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Some bootloaders are disabling write buffer coalescing. Enable it back
under linux.

Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Arnaud Patard 2008-03-13 09:53:21 +01:00 committed by Russell King
parent 7d7971db29
commit 391c569daa
1 changed files with 4 additions and 0 deletions
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4
arch/arm/mm/proc-xscale.S
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@ -114,6 +114,10 @@ clean_addr: .word CLEAN_ADDR
* Nothing too exciting at the moment
*/
ENTRY(cpu_xscale_proc_init)
@ enable write buffer coalescing. Some bootloader disable it
mrc p15, 0, r1, c1, c0, 1
bic r1, r1, #1
mcr p15, 0, r1, c1, c0, 1
mov pc, lr
/*