ARM: make cr_alignment read-only #ifndef CONFIG_CPU_CP15

[karo-tx-linux.git] / arch / arm / mm / mmu.c

diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index ce328c7f5c94556cdda6021e8aef1b950aba5aa2..7c347bcc942115f7f3101467d55cc5bbe0c3cf68 100644 (file)
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -97,6 +97,7 @@ static struct cachepolicy cache_policies[] __initdata = {
        }
 };
 
+#ifdef CONFIG_CPU_CP15
 /*
  * These are useful for identifying cache coherency
  * problems by allowing the cache or the cache and
@@ -195,6 +196,22 @@ void adjust_cr(unsigned long mask, unsigned long set)
 }
 #endif
 
+#else /* ifdef CONFIG_CPU_CP15 */
+
+static int __init early_cachepolicy(char *p)
+{
+       pr_warning("cachepolicy kernel parameter not supported without cp15\n");
+}
+early_param("cachepolicy", early_cachepolicy);
+
+static int __init noalign_setup(char *__unused)
+{
+       pr_warning("noalign kernel parameter not supported without cp15\n");
+}
+__setup("noalign", noalign_setup);
+
+#endif /* ifdef CONFIG_CPU_CP15 / else */
+
 #define PROT_PTE_DEVICE                L_PTE_PRESENT|L_PTE_YOUNG|L_PTE_DIRTY|L_PTE_XN
 #define PROT_SECT_DEVICE       PMD_TYPE_SECT|PMD_SECT_AP_WRITE