ARM: l2c: simplify l2x0 unlocking code

The l2x0 unlocking code is only called from l2x0_enable() now, so move
the logic entirely into that function and simplify it.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 8 insertions, 17 deletions

diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index e3f4fcbcc88b..157fd7ae331a 100644
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c
@@ -352,30 +352,21 @@ static void l2x0_disable(void)
         raw_spin_unlock_irqrestore(&l2x0_lock, flags);
 }
 
-static void l2x0_unlock(u32 cache_id)
+static void l2x0_enable(void __iomem *base, u32 aux, unsigned num_lock)
 {
-        int lockregs;
+        unsigned id;
 
-        switch (cache_id & L2X0_CACHE_ID_PART_MASK) {
-        case L2X0_CACHE_ID_PART_L310:
-                lockregs = 8;
-                break;
-        default:
-                /* L210 and unknown types */
-                lockregs = 1;
-                break;
-        }
-
-        l2c_unlock(l2x0_base, lockregs);
-}
+        id = readl_relaxed(base + L2X0_CACHE_ID) & L2X0_CACHE_ID_PART_MASK;
+        if (id == L2X0_CACHE_ID_PART_L310)
+                num_lock = 8;
+        else
+                num_lock = 1;
 
-static void l2x0_enable(void __iomem *base, u32 aux, unsigned num_lock)
-{
         /* l2x0 controller is disabled */
         writel_relaxed(aux, base + L2X0_AUX_CTRL);
 
         /* Make sure that I&D is not locked down when starting */
-        l2x0_unlock(readl_relaxed(base + L2X0_CACHE_ID));
+        l2c_unlock(base, num_lock);
 
         l2x0_inv_all();