Commit 391c569d authored Mar 13, 2008 by Arnaud Patard Committed by Russell King Mar 20, 2008

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



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>

parent 7d7971db

arch/arm/mm/proc-xscale.S

+4 −0

Original line number	Diff line number	Diff line
		@@ -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

		/*