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