Commit d1d890ed authored Jul 06, 2005 by Catalin Marinas Committed by Russell King Jul 06, 2005

[PATCH] ARM: 2789/1: Enable access to both CP10 and CP11 on ARMv6



Patch from Catalin Marinas

The VFP instructions trigger undefined exceptions because the access to
CP11 is disabled (only CP10 is currently enabled by the kernel). The patch
fixes this problem.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

parent a18bcb74

arch/arm/mm/proc-v6.S

+1 −1

Original line number	Diff line number	Diff line
		@@ -200,7 +200,7 @@ __v6_setup:
		mcr p15, 0, r4, c2, c0, 1 @ load TTB1
		#ifdef CONFIG_VFP
		mrc p15, 0, r0, c1, c0, 2
		orr r0, r0, #(3 << 20)
		orr r0, r0, #(0xf << 20)
		mcr p15, 0, r0, c1, c0, 2 @ Enable full access to VFP
		#endif
		mrc p15, 0, r0, c1, c0, 0 @ read control register