diff options
Diffstat (limited to 'arch/arm/mm/cache-l2x0.c')
| -rw-r--r-- | arch/arm/mm/cache-l2x0.c | 34 |
1 files changed, 21 insertions, 13 deletions
diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c index 6911b8b2745c..c2f37390308a 100644 --- a/arch/arm/mm/cache-l2x0.c +++ b/arch/arm/mm/cache-l2x0.c @@ -352,7 +352,8 @@ void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask) /* Unmapped register. */ sync_reg_offset = L2X0_DUMMY_REG; #endif - outer_cache.set_debug = pl310_set_debug; + if ((cache_id & L2X0_CACHE_ID_RTL_MASK) <= L2X0_CACHE_ID_RTL_R3P0) + outer_cache.set_debug = pl310_set_debug; break; case L2X0_CACHE_ID_PART_L210: ways = (aux >> 13) & 0xf; @@ -459,8 +460,8 @@ static void aurora_pa_range(unsigned long start, unsigned long end, unsigned long flags; raw_spin_lock_irqsave(&l2x0_lock, flags); - writel(start, l2x0_base + AURORA_RANGE_BASE_ADDR_REG); - writel(end, l2x0_base + offset); + writel_relaxed(start, l2x0_base + AURORA_RANGE_BASE_ADDR_REG); + writel_relaxed(end, l2x0_base + offset); raw_spin_unlock_irqrestore(&l2x0_lock, flags); cache_sync(); @@ -505,15 +506,21 @@ static void aurora_clean_range(unsigned long start, unsigned long end) static void aurora_flush_range(unsigned long start, unsigned long end) { - if (!l2_wt_override) { - start &= ~(CACHE_LINE_SIZE - 1); - end = ALIGN(end, CACHE_LINE_SIZE); - while (start != end) { - unsigned long range_end = calc_range_end(start, end); + start &= ~(CACHE_LINE_SIZE - 1); + end = ALIGN(end, CACHE_LINE_SIZE); + while (start != end) { + unsigned long range_end = calc_range_end(start, end); + /* + * If L2 is forced to WT, the L2 will always be clean and we + * just need to invalidate. + */ + if (l2_wt_override) aurora_pa_range(start, range_end - CACHE_LINE_SIZE, - AURORA_FLUSH_RANGE_REG); - start = range_end; - } + AURORA_INVAL_RANGE_REG); + else + aurora_pa_range(start, range_end - CACHE_LINE_SIZE, + AURORA_FLUSH_RANGE_REG); + start = range_end; } } @@ -668,8 +675,9 @@ static void pl310_resume(void) static void aurora_resume(void) { if (!(readl(l2x0_base + L2X0_CTRL) & L2X0_CTRL_EN)) { - writel(l2x0_saved_regs.aux_ctrl, l2x0_base + L2X0_AUX_CTRL); - writel(l2x0_saved_regs.ctrl, l2x0_base + L2X0_CTRL); + writel_relaxed(l2x0_saved_regs.aux_ctrl, + l2x0_base + L2X0_AUX_CTRL); + writel_relaxed(l2x0_saved_regs.ctrl, l2x0_base + L2X0_CTRL); } } |