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authorOlof Johansson <olof@lixom.net>2013-01-16 19:58:08 -0800
committerOlof Johansson <olof@lixom.net>2013-01-16 19:58:58 -0800
commit5046e385b4426e229a6beb4bce480762af91a6fc (patch)
tree65b4bff2c913a18840b3c58892853d51b942ac43 /arch/arm/mm/cache-l2x0.c
parenta73b59c51ab288d81b515b504790267f594884b8 (diff)
parentb86dc0d8c12bbb9fed3f392c284bdc7114ce00c1 (diff)
downloadlinux-5046e385b4426e229a6beb4bce480762af91a6fc.tar.bz2
Merge branch 'v3.8-samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
From Kukjin Kim: That branch fixes build error for S3C24XX/S3C64xx. And corrects dw-mshc properties on EXYNOS5 DT and fixes IRQ mapping on Cragganmore board. * 'v3.8-samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: S3C64XX: Fix up IRQ mapping for balblair on Cragganmore ARM: dts: correct the dw-mshc timing properties as per binding ARM: S3C64XX: Fix build error with CONFIG_S3C_DEV_FB disabled + Linux 3.8-rc3 Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/arm/mm/cache-l2x0.c')
-rw-r--r--arch/arm/mm/cache-l2x0.c34
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);
}
}