patch-2.4.25 linux-2.4.25/arch/ppc/boot/simple/clear.S

• Lines: 20
• Date: 2004-02-18 05:36:30.000000000 -0800
• Orig file: linux-2.4.24/arch/ppc/boot/simple/clear.S
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.24/arch/ppc/boot/simple/clear.S linux-2.4.25/arch/ppc/boot/simple/clear.S
@@ -0,0 +1,19 @@
+/*
+ * Code to call _setup_L2CR to flus, invalidate and disable the L2,
+ * and if present, do the same to the L3.
+ */
+
+#define CLEAR_CACHES						\
+	bl	_setup_L2CR;					\
+								\
+	/* If 745x, turn off L3CR as well */			\
+	mfspr	r8,PVR;						\
+	srwi	r8,r8,16;					\
+								\
+	cmpli	cr0,r8,0x8000;			/* 7450 */	\
+	cmpli	cr1,r8,0x8001;			/* 7455 */	\
+	cmpli	cr2,r8,0x8002;			/* 7457 */	\
+	/* Now test if any are true. */				\
+	cror	4*cr0+eq,4*cr0+eq,4*cr1+eq;			\
+	cror	4*cr0+eq,4*cr0+eq,4*cr2+eq;			\
+	beql	_setup_L3CR