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Commit 9a2c33a4 authored by Russell King's avatar Russell King
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ARM: l2c: fix revision checking 



The revision checking in l2c310_enable() was not correct; we were
masking the part number rather than the revision number.  Fix this
to use the correct macro.

Fixes: 4374d649 ("ARM: l2c: add automatic enable of early BRESP")
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 42309ab4

arch/arm/mm/cache-l2x0.c

+1 −1
Original line number Diff line number Diff line
@@ -664,7 +664,7 @@ static int l2c310_cpu_enable_flz(struct notifier_block *nb, unsigned long act, v 


static void __init l2c310_enable(void __iomem *base, u32 aux, unsigned num_lock)

{

	unsigned rev = readl_relaxed(base + L2X0_CACHE_ID) & L2X0_CACHE_ID_PART_MASK;

	unsigned rev = readl_relaxed(base + L2X0_CACHE_ID) & L2X0_CACHE_ID_RTL_MASK;

	bool cortex_a9 = read_cpuid_part_number() == ARM_CPU_PART_CORTEX_A9;



	if (rev >= L310_CACHE_ID_RTL_R2P0) {