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ARM: l2c: print a warning with L2C-310 caches if the cache size is modified

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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>
This commit is contained in:
Russell King 2014-03-19 14:07:12 +00:00
parent 678ea28b7c
commit 314e47b7b6
1 changed files with 2 additions and 0 deletions
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2
arch/arm/mm/cache-l2x0.c
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@ -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