1 files changed, 113 insertions, 0 deletions
diff --git a/src/roms/SLOF/include/ppc970/cpu.h b/src/roms/SLOF/include/ppc970/cpu.h
new file mode 100644
index 0000000..0e66dff
--- /dev/null
+++ b/src/roms/SLOF/include/ppc970/cpu.h
@@ -0,0 +1,113 @@
+/******************************************************************************
+ * Copyright (c) 2004, 2008 IBM Corporation
+ * All rights reserved.
+ * This program and the accompanying materials
+ * are made available under the terms of the BSD License
+ * which accompanies this distribution, and is available at
+ * http://www.opensource.org/licenses/bsd-license.php
+ *
+ * Contributors:
+ *     IBM Corporation - initial implementation
+ *****************************************************************************/
+
+#ifndef __PPC970_H
+#define __PPC970_H
+
+/* SPRs numbers */
+
+#define CTRL_RD 136
+#define CTRL_WR 152
+#define PVR     287
+#define HSPRG0  304
+#define HSPRG1  305
+#define HIOR    311
+#define HID0    1008
+#define HID1    1009
+#define HID4    1012
+#define HID6    1017
+#define PIR     1023
+
+#define SETCI(r)	sync; \
+			mfspr	r, HID4; \
+			sync; \
+			rldicl	r, r, 32,0; \
+			ori	r, r, 0x0100; \
+			rldicl	r, r, 32,0; \
+			sync; \
+			slbia; \
+			mtspr	HID4, r; \
+			isync; \
+			eieio;
+
+#define CLRCI(r)	sync; \
+			mfspr	r, HID4; \
+			sync; \
+			rldicl	r, r, 32, 0; \
+			ori	r, r, 0x0100; \
+			xori	r, r, 0x0100; \
+			rldicl	r, r, 32, 0; \
+			sync; \
+			slbia; \
+			mtspr	HID4, r; \
+			isync; \
+			eieio;
+
+/* This macro uses r0 */
+#define FLUSH_CACHE(r, n)	add	n, n, r; \
+				addi	n, n, 127; \
+				rlwinm	r, r, 0,0,24; \
+				rlwinm	n, n, 0,0,24; \
+				sub	n, n, r; \
+				srwi	n, n, 7; \
+				mtctr	n; \
+			0:	dcbst	0, r; \
+				sync; \
+				icbi	0, r; \
+				sync; \
+				isync; \
+				addi	r, r, 128; \
+				bdnz	0b;
+
+#ifndef __ASSEMBLER__
+#define STRINGIFY(x...) #x
+#define EXPAND(x) STRINGIFY(x)
+
+static inline void
+set_ci(void)
+{
+	unsigned long tmp;
+	asm volatile(EXPAND(SETCI(%0)) : "=r"(tmp) :: "memory", "cc");
+}
+
+static inline void
+clr_ci(void)
+{
+	unsigned long tmp;
+	asm volatile(EXPAND(CLRCI(%0)) : "=r"(tmp) :: "memory", "cc");
+}
+
+static inline void eieio(void)
+{
+	asm volatile ("eieio":::"memory");
+}
+
+static inline void barrier(void)
+{
+	asm volatile("" : : : "memory");
+}
+#define cpu_relax() barrier()
+
+static inline void sync(void)
+{
+	asm volatile ("sync" ::: "memory");
+}
+#define mb() sync()
+
+static inline void flush_cache(void* r, long n)
+{
+	asm volatile(EXPAND(FLUSH_CACHE(%0, %1)) : "+r"(r), "+r"(n) :: "memory", "cc", "r0", "ctr");
+}
+
+#endif /* __ASSEMBLER__ */
+
+#endif