diff options
| -rw-r--r-- | arch/arm/mm/cache-l2x0.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c index d07fa4f..6161232 100644 --- a/arch/arm/mm/cache-l2x0.c +++ b/arch/arm/mm/cache-l2x0.c @@ -522,6 +522,19 @@ static void l2c310_set_debug(unsigned long val) writel_relaxed(val, l2x0_base + L2X0_DEBUG_CTRL); } +static void l2c310_flush_all_erratum(void) +{ + void __iomem *base = l2x0_base; + unsigned long flags; + + raw_spin_lock_irqsave(&l2x0_lock, flags); + l2c_set_debug(base, 0x03); + __l2c_op_way(base + L2X0_CLEAN_INV_WAY); + l2c_set_debug(base, 0x00); + __l2c210_cache_sync(base); + raw_spin_unlock_irqrestore(&l2x0_lock, flags); +} + static void __init l2c310_save(void __iomem *base) { unsigned revision; @@ -590,6 +603,13 @@ static void __init l2c310_fixup(void __iomem *base, u32 cache_id, if (revision <= L310_CACHE_ID_RTL_R3P0) fns->set_debug = l2c310_set_debug; + if (IS_ENABLED(CONFIG_PL310_ERRATA_727915) && + revision >= L310_CACHE_ID_RTL_R2P0 && + revision < L310_CACHE_ID_RTL_R3P1) { + fns->flush_all = l2c310_flush_all_erratum; + errata[n++] = "727915"; + } + if (IS_ENABLED(CONFIG_PL310_ERRATA_753970) && revision == L310_CACHE_ID_RTL_R3P0) { sync_reg_offset = L2X0_DUMMY_REG; |