ARM: l2c: fix revision checking (9a2c33a4) · Commits · 戴 / test

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: ("ARM: l2c: add automatic enable of early BRESP") Signed-off-by:

Russell King <rmk+kernel@arm.linux.org.uk>

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) {

Admin message