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In commit f62782fb2999 ("cache: l2x0: Fix write to incorrect shared-override
bit") we removed writel to regs->pl310_aux_ctrl by accident. This
commit restores it back.
Fixes: f62782fb2999 ("cache: l2x0: Fix write to incorrect shared-override bit")
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
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The existing code write bit-0 for shared attribute override enable bit.
It should be bit-22 based on cache controller specification [1].
[1] http://infocenter.arm.com/help/topic/com.arm.doc.ddi0246f/DDI0246F_l2c310_r3p2_trm.pdf
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
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Add a PL310 cache controller driver that is usually found on
ARMv7(32-bit) devices. The driver configures the cache settings that can
be found in the device tree files.
This initial revision only configures basic settings(data & instruction
prefetch, shared-override, data & tag latency). I believe these are the
settings that affect performance the most. Comprehensive settings can be
done by the OS.
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
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