From: chenhui zhao <chenhui.z...@freescale.com>
The workarounds need to detect the cpu type. Add these macros
and inline routines to help cpu type detection in runtime.
Signed-off-by: Zhao Chenhui <chenhui.z...@freescale.com>
Signed-off-by: Li Yang <le...@freescale.com>
---
arch/powerpc/include/asm/mpc85xx.h | 72 ++++++++++++++++++++++++++++++++++++
1 files changed, 72 insertions(+), 0 deletions(-)
create mode 100644 arch/powerpc/include/asm/mpc85xx.h
diff --git a/arch/powerpc/include/asm/mpc85xx.h
b/arch/powerpc/include/asm/mpc85xx.h
new file mode 100644
index 0000000..451777c
--- /dev/null
+++ b/arch/powerpc/include/asm/mpc85xx.h
@@ -0,0 +1,72 @@
+/*
+ * MPC85xx cpu type detection
+ *
+ * Copyright 2011-2012 Freescale Semiconductor, Inc.
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __ASM_PPC_CPU_H
+#define __ASM_PPC_CPU_H
+
+#define SVR_REV(svr) ((svr) & 0xFF) /* SOC design resision */
+#define SVR_MAJ(svr) (((svr) >> 4) & 0xF) /* Major revision field*/
+#define SVR_MIN(svr) (((svr) >> 0) & 0xF) /* Minor revision field*/
+
+/* Some parts define SVR[0:23] as the SOC version */
+#define SVR_SOC_VER(svr) (((svr) >> 8) & 0xFFFFFF) /* SOC Version fields */
+
+#define IS_SVR_REV(svr, maj, min) \
+ ((SVR_MAJ(svr) == (maj)) && (SVR_MIN(svr) == (min)))
+
+#define SVR_8533 0x803400
+#define SVR_8533_E 0x803C00
+#define SVR_8535 0x803701
+#define SVR_8535_E 0x803F01
+#define SVR_8536 0x803700
+#define SVR_8536_E 0x803F00
+#define SVR_8540 0x803000
+#define SVR_8541 0x807200
+#define SVR_8541_E 0x807A00
+#define SVR_8543 0x803200
+#define SVR_8543_E 0x803A00
+#define SVR_8544 0x803401
+#define SVR_8544_E 0x803C01
+#define SVR_8545 0x803102
+#define SVR_8545_E 0x803902
+#define SVR_8547_E 0x803901
+#define SVR_8548 0x803100
+#define SVR_8548_E 0x803900
+#define SVR_8555 0x807100
+#define SVR_8555_E 0x807900
+#define SVR_8560 0x807000
+#define SVR_8567 0x807501
+#define SVR_8567_E 0x807D01
+#define SVR_8568 0x807500
+#define SVR_8568_E 0x807D00
+#define SVR_8569 0x808000
+#define SVR_8569_E 0x808800
+#define SVR_8572 0x80E000
+#define SVR_8572_E 0x80E800
+
+
+static inline int fsl_svr_is(u32 svr)
+{
+ u32 id = SVR_SOC_VER(mfspr(SPRN_SVR));
+
+ return (id == svr);
+}
+
+/* Return true if current SOC revision is prior to (maj, min) */
+static inline int fsl_svr_older_than(u8 maj, u8 min)
+{
+ u32 rev = SVR_REV(mfspr(SPRN_SVR));
+ u32 cmp = (maj << 4) | min;
+
+ return (rev < cmp);
+}
+
+#endif
--
1.6.4.1
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