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authorRussell King <rmk+kernel@arm.linux.org.uk>2014-03-19 14:07:12 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2014-05-30 00:50:37 +0100
commit314e47b7b651db93bbdeb83f4244240ff5d33baa (patch)
tree1876391d89b184f221f47afe1cfd570a488da193 /arch/arm
parent678ea28b7c3cc9a7196192dc77dfc13513db3d5f (diff)
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ARM: l2c: print a warning with L2C-310 caches if the cache size is modified
As we have now removed all instances of the L2C-310 having its cache size "modified" via platform/SoC code, discourage new cases showing up by printing a warning. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mm/cache-l2x0.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index ae6e71b3295c..415efc3bee0d 100644
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c
@@ -765,6 +765,8 @@ static void __init __l2c_init(const struct l2c_init_data *data,
/* Determine the number of ways */
switch (cache_id & L2X0_CACHE_ID_PART_MASK) {
case L2X0_CACHE_ID_PART_L310:
+ if ((aux_val | ~aux_mask) & (L2C_AUX_CTRL_WAY_SIZE_MASK | L310_AUX_CTRL_ASSOCIATIVITY_16))
+ pr_warn("L2C: DT/platform tries to modify or specify cache size\n");
if (aux & (1 << 16))
ways = 16;
else