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[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>
hifive-unleashed-5.1
Catalin Marinas 2005-07-06 23:06:03 +01:00 committed by Russell King
parent a18bcb7450
commit d1d890edac
1 changed files with 1 additions and 1 deletions
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2
arch/arm/mm/proc-v6.S
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@ -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