[ARM] pxa: enable L2 if present in XSC3
Check whether L2 is present or not in XSC3. If it's present, enable L2 immediately. Disabling L2 after L2 is enabled that would result in unpredicatable behavior of XSC3 processor. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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@ -407,6 +407,13 @@ __xsc3_setup:
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adr r5, xsc3_crval
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ldmia r5, {r5, r6}
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#ifdef CONFIG_CACHE_XSC3L2
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mrc p15, 1, r0, c0, c0, 1 @ get L2 present information
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ands r0, r0, #0xf8
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orrne r6, r6, #(1 << 26) @ enable L2 if present
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#endif
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mrc p15, 0, r0, c1, c0, 0 @ get control register
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bic r0, r0, r5 @ ..V. ..R. .... ..A.
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orr r0, r0, r6 @ ..VI Z..S .... .C.M (mmu)
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