1 files changed, 22 insertions, 0 deletions
diff --git a/include/asm-arm/proc-armv/uncompress.h b/include/asm-arm/proc-armv/uncompress.h
new file mode 100644
index 000000000..acce2de35
--- /dev/null
+++ b/include/asm-arm/proc-armv/uncompress.h
@@ -0,0 +1,22 @@
+/*
+ * linux/include/asm-arm/proc-armv/uncompress.h
+ *
+ * (c) 1997 Russell King
+ */
+
+static inline void proc_decomp_setup (void)
+{
+	__asm__ __volatile__("
+	mrc	p15, 0, r0, c0, c0
+	eor	r0, r0, #0x44 << 24
+	eor	r0, r0, #0x01 << 16
+	eor	r0, r0, #0xA1 << 8
+	movs	r0, r0, lsr #4
+	mcreq	p15, 0, r0, c7, c5, 0		@ flush I cache
+	mrceq	p15, 0, r0, c1, c0
+	orreq	r0, r0, #1 << 12
+	mcreq	p15, 0, r0, c1, c0		@ enable I cache
+	mov	r0, #0
+	mcreq	p15, 0, r0, c15, c1, 2		@ enable clock switching
+	" : : : "r0", "cc", "memory");
+}