1 files changed, 76 insertions, 0 deletions

diff --git a/arch/mips/include/asm/dec/kn05.h b/arch/mips/include/asm/dec/kn05.h
new file mode 100644
index 000000000000..56d22dc8803a
--- /dev/null
+++ b/arch/mips/include/asm/dec/kn05.h
@@ -0,0 +1,76 @@
+/*
+ *      include/asm-mips/dec/kn05.h
+ *
+ *      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, 2005, 2008  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
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ *
+ *      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 nor the KN04
+ *      module has been located so far.
+ */
+#ifndef __ASM_MIPS_DEC_KN05_H
+#define __ASM_MIPS_DEC_KN05_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 or KN02-BA/CA.
+ * Others are handled locally.  "Low" slots are always passed.
+ */
+#define KN4K_SLOT_BASE  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 KN4K_MB_INT_TC          (1<<0)          /* TURBOchannel? */
+#define KN4K_MB_INT_RTC         (1<<1)          /* RTC? */
+#define KN4K_MB_INT_MT          (1<<3)          /* I/O ASIC cascade */
+
+/*
+ * Bits for the MB control & status register.
+ * Set to 0x00bf8001 for KN05 and to 0x003f8000 for KN04 by the firmware.
+ */
+#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)      /* CPU Int[4:0] mask */
+#define KN4K_MB_CSR_FW          (1<<21)         /* ??? */
+#define KN4K_MB_CSR_W           (1<<31)         /* ??? */
+
+#endif /* __ASM_MIPS_DEC_KN05_H */