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ARM: 7608/1: l2x0: Only set .set_debug on PL310 r3p0 and earlier
PL310 errata work-arounds using .set_debug function are only needed on r3p0 and earlier, so check the rev and only set .set_debug on older revs. Avoiding debug register accesses fixes aborts on non-secure platforms like highbank. It is assumed that non-secure platforms needing these work-arounds have already implemented .set_debug with secure monitor calls. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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1 changed files with 2 additions and 1 deletions
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@ -352,7 +352,8 @@ void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask)
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/* Unmapped register. */
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sync_reg_offset = L2X0_DUMMY_REG;
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#endif
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outer_cache.set_debug = pl310_set_debug;
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if ((cache_id & L2X0_CACHE_ID_RTL_MASK) <= L2X0_CACHE_ID_RTL_R3P0)
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outer_cache.set_debug = pl310_set_debug;
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break;
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case L2X0_CACHE_ID_PART_L210:
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ways = (aux >> 13) & 0xf;
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