System-specific handling of bus errors for DECstation variations

supporting parity errors only for memory (Pmax/3min/Maxine).
Fixes for resources decoded by the KN04/KN05 MB ASIC.  Additional
clean-ups for the ECC handler.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 41 insertions, 36 deletions

diff --git a/include/asm-mips/dec/kn05.h b/include/asm-mips/dec/kn05.h
index b120362b8f1..61feac382ef 100644
--- a/include/asm-mips/dec/kn05.h
+++ b/include/asm-mips/dec/kn05.h
@@ -1,10 +1,12 @@
 /*
  *	include/asm-mips/dec/kn05.h
  *
- *	DECstation 5000/260 (4max+ or KN05) and DECsystem 5900/260
+ *	DECstation/DECsystem 5000/260 (4max+ or KN05), 5000/150 (4min
+ *	or KN04-BA), Personal DECstation/DECsystem 5000/50 (4maxine or
+ *	KN04-CA) and DECsystem 5900/260 (KN05) R4k CPU card MB ASIC
  *	definitions.
  *
- *	Copyright (C) 2002, 2003  Maciej W. Rozycki
+ *	Copyright (C) 2002, 2003, 2005  Maciej W. Rozycki
  *
  *	This program is free software; you can redistribute it and/or
  *	modify it under the terms of the GNU General Public License
@@ -13,59 +15,62 @@
  *
  *	WARNING!  All this information is pure guesswork based on the
  *	ROM.  It is provided here in hope it will give someone some
- *	food for thought.  No documentation for the KN05 module has
- *	been located so far.
+ *	food for thought.  No documentation for the KN05 nor the KN04
+ *	module has been located so far.
  */
 #ifndef __ASM_MIPS_DEC_KN05_H
 #define __ASM_MIPS_DEC_KN05_H
 
+#include <asm/addrspace.h>
 #include <asm/dec/ioasic_addrs.h>
 
 /*
  * The oncard MB (Memory Buffer) ASIC provides an additional address
  * decoder.  Certain address ranges within the "high" 16 slots are
- * passed to the I/O ASIC's decoder like with the KN03.  Others are
- * handled locally.  "Low" slots are always passed.
+ * passed to the I/O ASIC's decoder like with the KN03 or KN02-BA/CA.
+ * Others are handled locally.  "Low" slots are always passed.
  */
-#define KN05_MB_ROM	(16*IOASIC_SLOT_SIZE)	/* KN05 card ROM */
-#define KN05_IOCTL	(17*IOASIC_SLOT_SIZE)	/* I/O ASIC */
-#define KN05_ESAR	(18*IOASIC_SLOT_SIZE)	/* LANCE MAC address chip */
-#define KN05_LANCE	(19*IOASIC_SLOT_SIZE)	/* LANCE Ethernet */
-#define KN05_MB_INT	(20*IOASIC_SLOT_SIZE)	/* MB interrupt register */
-#define KN05_MB_EA	(21*IOASIC_SLOT_SIZE)	/* MB error address? */
-#define KN05_MB_EC	(22*IOASIC_SLOT_SIZE)	/* MB error ??? */
-#define KN05_MB_CSR	(23*IOASIC_SLOT_SIZE)	/* MB control & status */
-#define KN05_RES_24	(24*IOASIC_SLOT_SIZE)	/* unused? */
-#define KN05_RES_25	(25*IOASIC_SLOT_SIZE)	/* unused? */
-#define KN05_RES_26	(26*IOASIC_SLOT_SIZE)	/* unused? */
-#define KN05_RES_27	(27*IOASIC_SLOT_SIZE)	/* unused? */
-#define KN05_SCSI	(28*IOASIC_SLOT_SIZE)	/* ASC SCSI */
-#define KN05_RES_29	(29*IOASIC_SLOT_SIZE)	/* unused? */
-#define KN05_RES_30	(30*IOASIC_SLOT_SIZE)	/* unused? */
-#define KN05_RES_31	(31*IOASIC_SLOT_SIZE)	/* unused? */
+#define KN4K_SLOT_BASE	KSEG1ADDR(0x1fc00000)
+
+#define KN4K_MB_ROM	(0*IOASIC_SLOT_SIZE)	/* KN05/KN04 card ROM */
+#define KN4K_IOCTL	(1*IOASIC_SLOT_SIZE)	/* I/O ASIC */
+#define KN4K_ESAR	(2*IOASIC_SLOT_SIZE)	/* LANCE MAC address chip */
+#define KN4K_LANCE	(3*IOASIC_SLOT_SIZE)	/* LANCE Ethernet */
+#define KN4K_MB_INT	(4*IOASIC_SLOT_SIZE)	/* MB interrupt register */
+#define KN4K_MB_EA	(5*IOASIC_SLOT_SIZE)	/* MB error address? */
+#define KN4K_MB_EC	(6*IOASIC_SLOT_SIZE)	/* MB error ??? */
+#define KN4K_MB_CSR	(7*IOASIC_SLOT_SIZE)	/* MB control & status */
+#define KN4K_RES_08	(8*IOASIC_SLOT_SIZE)	/* unused? */
+#define KN4K_RES_09	(9*IOASIC_SLOT_SIZE)	/* unused? */
+#define KN4K_RES_10	(10*IOASIC_SLOT_SIZE)	/* unused? */
+#define KN4K_RES_11	(11*IOASIC_SLOT_SIZE)	/* unused? */
+#define KN4K_SCSI	(12*IOASIC_SLOT_SIZE)	/* ASC SCSI */
+#define KN4K_RES_13	(13*IOASIC_SLOT_SIZE)	/* unused? */
+#define KN4K_RES_14	(14*IOASIC_SLOT_SIZE)	/* unused? */
+#define KN4K_RES_15	(15*IOASIC_SLOT_SIZE)	/* unused? */
 
 /*
  * Bits for the MB interrupt register.
  * The register appears read-only.
  */
-#define KN05_MB_INT_TC		(1<<0)		/* TURBOchannel? */
-#define KN05_MB_INT_RTC		(1<<1)		/* RTC? */
-#define KN05_MB_INT_MT		(1<<3)		/* ??? */
+#define KN4K_MB_INT_TC		(1<<0)		/* TURBOchannel? */
+#define KN4K_MB_INT_RTC		(1<<1)		/* RTC? */
+#define KN4K_MB_INT_MT		(1<<3)		/* ??? */
 
 /*
  * Bits for the MB control & status register.
  * Set to 0x00bf8001 on my system by the ROM.
  */
-#define KN05_MB_CSR_PF		(1<<0)		/* PreFetching enable? */
-#define KN05_MB_CSR_F		(1<<1)		/* ??? */
-#define KN05_MB_CSR_ECC		(0xff<<2)	/* ??? */
-#define KN05_MB_CSR_OD		(1<<10)		/* ??? */
-#define KN05_MB_CSR_CP		(1<<11)		/* ??? */
-#define KN05_MB_CSR_UNC		(1<<12)		/* ??? */
-#define KN05_MB_CSR_IM		(1<<13)		/* ??? */
-#define KN05_MB_CSR_NC		(1<<14)		/* ??? */
-#define KN05_MB_CSR_EE		(1<<15)		/* (bus) Exception Enable? */
-#define KN05_MB_CSR_MSK		(0x1f<<16)	/* ??? */
-#define KN05_MB_CSR_FW		(1<<21)		/* ??? */
+#define KN4K_MB_CSR_PF		(1<<0)		/* PreFetching enable? */
+#define KN4K_MB_CSR_F		(1<<1)		/* ??? */
+#define KN4K_MB_CSR_ECC		(0xff<<2)	/* ??? */
+#define KN4K_MB_CSR_OD		(1<<10)		/* ??? */
+#define KN4K_MB_CSR_CP		(1<<11)		/* ??? */
+#define KN4K_MB_CSR_UNC		(1<<12)		/* ??? */
+#define KN4K_MB_CSR_IM		(1<<13)		/* ??? */
+#define KN4K_MB_CSR_NC		(1<<14)		/* ??? */
+#define KN4K_MB_CSR_EE		(1<<15)		/* (bus) Exception Enable? */
+#define KN4K_MB_CSR_MSK		(0x1f<<16)	/* ??? */
+#define KN4K_MB_CSR_FW		(1<<21)		/* ??? */
 
 #endif /* __ASM_MIPS_DEC_KN05_H */