This function is called from kexec code before the inner caches are
disabled to prevent random crashes in the new kernel.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Index: linux-2.6/arch/arm/mm/cache-l2x0.c
===================================================================
--- linux-2.6.orig/arch/arm/mm/cache-l2x0.c
+++ linux-2.6/arch/arm/mm/cache-l2x0.c
@@ -206,6 +206,12 @@ static void l2x0_flush_range(unsigned lo
 	spin_unlock_irqrestore(&l2x0_lock, flags);
 }
 
+static void l2x0_cache_disable(void)
+{
+	l2x0_inv_all();
+	writel(0, l2x0_base + L2X0_CTRL);
+}
+
 void __init l2x0_init(void __iomem *base, __u32 aux_val, __u32 aux_mask)
 {
 	__u32 aux;
@@ -262,6 +268,7 @@ void __init l2x0_init(void __iomem *base
 	outer_cache.clean_range = l2x0_clean_range;
 	outer_cache.flush_range = l2x0_flush_range;
 	outer_cache.sync = l2x0_cache_sync;
+	outer_cache.disable = l2x0_cache_disable;
 
 	printk(KERN_INFO "%s cache controller enabled\n", type);
 	printk(KERN_INFO "l2x0: %d ways, CACHE_ID 0x%08x, AUX_CTRL 0x%08x\n",