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-rw-r--r--include/asm-mips/dec/ecc.h3
-rw-r--r--include/asm-mips/dec/ioasic_addrs.h3
-rw-r--r--include/asm-mips/dec/kn01.h34
-rw-r--r--include/asm-mips/dec/kn02.h33
-rw-r--r--include/asm-mips/dec/kn02xa.h46
-rw-r--r--include/asm-mips/dec/kn03.h13
-rw-r--r--include/asm-mips/dec/kn05.h76
-rw-r--r--include/asm-mips/dec/prom.h30
-rw-r--r--include/asm-mips/dec/system.h18
-rw-r--r--include/asm-mips/dec/tc.h10
10 files changed, 143 insertions, 123 deletions
diff --git a/include/asm-mips/dec/ecc.h b/include/asm-mips/dec/ecc.h
index 724908b..19495a4 100644
--- a/include/asm-mips/dec/ecc.h
+++ b/include/asm-mips/dec/ecc.h
@@ -49,7 +49,8 @@ struct pt_regs;
extern void dec_ecc_be_init(void);
extern int dec_ecc_be_handler(struct pt_regs *regs, int is_fixup);
-extern irqreturn_t dec_ecc_be_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+extern irqreturn_t dec_ecc_be_interrupt(int irq, void *dev_id,
+ struct pt_regs *regs);
#endif
#endif /* __ASM_MIPS_DEC_ECC_H */
diff --git a/include/asm-mips/dec/ioasic_addrs.h b/include/asm-mips/dec/ioasic_addrs.h
index 5e18a75..4cbc1f8 100644
--- a/include/asm-mips/dec/ioasic_addrs.h
+++ b/include/asm-mips/dec/ioasic_addrs.h
@@ -45,7 +45,8 @@
/*
- * Offsets for I/O ASIC registers (relative to (system_base + IOASIC_IOCTL)).
+ * Offsets for I/O ASIC registers
+ * (relative to (dec_kn_slot_base + IOASIC_IOCTL)).
*/
/* all systems */
#define IO_REG_SCSI_DMA_P 0x00 /* SCSI DMA Pointer */
diff --git a/include/asm-mips/dec/kn01.h b/include/asm-mips/dec/kn01.h
index 9469435..eb522aa 100644
--- a/include/asm-mips/dec/kn01.h
+++ b/include/asm-mips/dec/kn01.h
@@ -8,14 +8,12 @@
*
* Copyright (C) 1995,1996 by Paul M. Antoine, some code and definitions
* are by courtesy of Chris Fraser.
- * Copyright (C) 2002, 2003 Maciej W. Rozycki
+ * Copyright (C) 2002, 2003, 2005 Maciej W. Rozycki
*/
#ifndef __ASM_MIPS_DEC_KN01_H
#define __ASM_MIPS_DEC_KN01_H
-#include <asm/addrspace.h>
-
-#define KN01_SLOT_BASE KSEG1ADDR(0x10000000)
+#define KN01_SLOT_BASE 0x10000000
#define KN01_SLOT_SIZE 0x01000000
/*
@@ -41,17 +39,9 @@
/*
- * Some port addresses...
- */
-#define KN01_LANCE_BASE (KN01_SLOT_BASE + KN01_LANCE) /* 0xB8000000 */
-#define KN01_DZ11_BASE (KN01_SLOT_BASE + KN01_DZ11) /* 0xBC000000 */
-#define KN01_RTC_BASE (KN01_SLOT_BASE + KN01_RTC) /* 0xBD000000 */
-
-
-/*
* Frame buffer memory address.
*/
-#define KN01_VFB_MEM KSEG1ADDR(0x0fc00000)
+#define KN01_VFB_MEM 0x0fc00000
/*
* CPU interrupt bits.
@@ -80,4 +70,22 @@
#define KN01_CSR_VRGTRB (1<<0) /* red DAC voltage over blue (r/o) */
#define KN01_CSR_LEDS (0xff<<0) /* ~diagnostic LEDs (w/o) */
+
+#ifndef __ASSEMBLY__
+
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+
+struct pt_regs;
+
+extern u16 cached_kn01_csr;
+extern spinlock_t kn01_lock;
+
+extern void dec_kn01_be_init(void);
+extern int dec_kn01_be_handler(struct pt_regs *regs, int is_fixup);
+extern irqreturn_t dec_kn01_be_interrupt(int irq, void *dev_id,
+ struct pt_regs *regs);
+#endif
+
#endif /* __ASM_MIPS_DEC_KN01_H */
diff --git a/include/asm-mips/dec/kn02.h b/include/asm-mips/dec/kn02.h
index f797f70..8319ad7 100644
--- a/include/asm-mips/dec/kn02.h
+++ b/include/asm-mips/dec/kn02.h
@@ -8,21 +8,12 @@
*
* Copyright (C) 1995,1996 by Paul M. Antoine, some code and definitions
* are by courtesy of Chris Fraser.
- * Copyright (C) 2002, 2003 Maciej W. Rozycki
+ * Copyright (C) 2002, 2003, 2005 Maciej W. Rozycki
*/
#ifndef __ASM_MIPS_DEC_KN02_H
#define __ASM_MIPS_DEC_KN02_H
-#ifndef __ASSEMBLY__
-#include <linux/spinlock.h>
-#include <linux/types.h>
-#endif
-
-#include <asm/addrspace.h>
-#include <asm/dec/ecc.h>
-
-
-#define KN02_SLOT_BASE KSEG1ADDR(0x1fc00000)
+#define KN02_SLOT_BASE 0x1fc00000
#define KN02_SLOT_SIZE 0x00080000
/*
@@ -39,22 +30,14 @@
/*
- * Some port addresses...
- */
-#define KN02_DZ11_BASE (KN02_SLOT_BASE + KN02_DZ11) /* DZ11 */
-#define KN02_RTC_BASE (KN02_SLOT_BASE + KN02_RTC) /* RTC */
-#define KN02_CSR_BASE (KN02_SLOT_BASE + KN02_CSR) /* CSR */
-
-
-/*
* System Control & Status Register bits.
*/
#define KN02_CSR_RES_28 (0xf<<28) /* unused */
#define KN02_CSR_PSU (1<<27) /* power supply unit warning */
#define KN02_CSR_NVRAM (1<<26) /* ~NVRAM clear jumper */
#define KN02_CSR_REFEVEN (1<<25) /* mem refresh bank toggle */
-#define KN03_CSR_NRMOD (1<<24) /* ~NRMOD manufact. jumper */
-#define KN03_CSR_IOINTEN (0xff<<16) /* IRQ mask bits */
+#define KN02_CSR_NRMOD (1<<24) /* ~NRMOD manufact. jumper */
+#define KN02_CSR_IOINTEN (0xff<<16) /* IRQ mask bits */
#define KN02_CSR_DIAGCHK (1<<15) /* diagn/norml ECC reads */
#define KN02_CSR_DIAGGEN (1<<14) /* diagn/norml ECC writes */
#define KN02_CSR_CORRECT (1<<13) /* ECC correct/check */
@@ -63,8 +46,8 @@
#define KN02_CSR_BNK32M (1<<10) /* 32M/8M stride */
#define KN02_CSR_DIAGDN (1<<9) /* DIAGDN manufact. jumper */
#define KN02_CSR_BAUD38 (1<<8) /* DZ11 38/19kbps ext. rate */
-#define KN03_CSR_IOINT (0xff<<0) /* IRQ status bits (r/o) */
-#define KN03_CSR_LEDS (0xff<<0) /* ~diagnostic LEDs (w/o) */
+#define KN02_CSR_IOINT (0xff<<0) /* IRQ status bits (r/o) */
+#define KN02_CSR_LEDS (0xff<<0) /* ~diagnostic LEDs (w/o) */
/*
@@ -98,6 +81,10 @@
#ifndef __ASSEMBLY__
+
+#include <linux/spinlock.h>
+#include <linux/types.h>
+
extern u32 cached_kn02_csr;
extern spinlock_t kn02_lock;
extern void init_kn02_irqs(int base);
diff --git a/include/asm-mips/dec/kn02xa.h b/include/asm-mips/dec/kn02xa.h
index 648c4dc..a25f3d7 100644
--- a/include/asm-mips/dec/kn02xa.h
+++ b/include/asm-mips/dec/kn02xa.h
@@ -9,7 +9,7 @@
*
* Copyright (C) 1995,1996 by Paul M. Antoine, some code and definitions
* are by courtesy of Chris Fraser.
- * Copyright (C) 2000, 2002, 2003 Maciej W. Rozycki
+ * Copyright (C) 2000, 2002, 2003, 2005 Maciej W. Rozycki
*
* These are addresses which have to be known early in the boot process.
* For other addresses refer to tc.h, ioasic_addrs.h and friends.
@@ -17,31 +17,23 @@
#ifndef __ASM_MIPS_DEC_KN02XA_H
#define __ASM_MIPS_DEC_KN02XA_H
-#include <asm/addrspace.h>
#include <asm/dec/ioasic_addrs.h>
-#define KN02XA_SLOT_BASE KSEG1ADDR(0x1c000000)
-
-/*
- * Some port addresses...
- */
-#define KN02XA_IOASIC_BASE (KN02XA_SLOT_BASE + IOASIC_IOCTL) /* I/O ASIC */
-#define KN02XA_RTC_BASE (KN02XA_SLOT_BASE + IOASIC_TOY) /* RTC */
-
+#define KN02XA_SLOT_BASE 0x1c000000
/*
* Memory control ASIC registers.
*/
-#define KN02XA_MER KSEG1ADDR(0x0c400000) /* memory error register */
-#define KN02XA_MSR KSEG1ADDR(0x0c800000) /* memory size register */
+#define KN02XA_MER 0x0c400000 /* memory error register */
+#define KN02XA_MSR 0x0c800000 /* memory size register */
/*
* CPU control ASIC registers.
*/
-#define KN02XA_MEM_CONF KSEG1ADDR(0x0e000000) /* write timeout config */
-#define KN02XA_EAR KSEG1ADDR(0x0e000004) /* error address register */
-#define KN02XA_BOOT0 KSEG1ADDR(0x0e000008) /* boot 0 register */
-#define KN02XA_MEM_INTR KSEG1ADDR(0x0e00000c) /* write err IRQ stat & ack */
+#define KN02XA_MEM_CONF 0x0e000000 /* write timeout config */
+#define KN02XA_EAR 0x0e000004 /* error address register */
+#define KN02XA_BOOT0 0x0e000008 /* boot 0 register */
+#define KN02XA_MEM_INTR 0x0e00000c /* write err IRQ stat & ack */
/*
* Memory Error Register bits, common definitions.
@@ -52,8 +44,13 @@
#define KN02XA_MER_PAGERR (1<<16) /* 2k page boundary error */
#define KN02XA_MER_TRANSERR (1<<15) /* transfer length error */
#define KN02XA_MER_PARDIS (1<<14) /* parity error disable */
-#define KN02XA_MER_RES_12 (0x3<<12) /* unused */
-#define KN02XA_MER_BYTERR (0xf<<8) /* byte lane error bitmask */
+#define KN02XA_MER_SIZE (1<<13) /* r/o mirror of MSR_SIZE */
+#define KN02XA_MER_RES_12 (1<<12) /* unused */
+#define KN02XA_MER_BYTERR (0xf<<8) /* byte lane error bitmask: */
+#define KN02XA_MER_BYTERR_3 (0x8<<8) /* byte lane #3 */
+#define KN02XA_MER_BYTERR_2 (0x4<<8) /* byte lane #2 */
+#define KN02XA_MER_BYTERR_1 (0x2<<8) /* byte lane #1 */
+#define KN02XA_MER_BYTERR_0 (0x1<<8) /* byte lane #0 */
#define KN02XA_MER_RES_0 (0xff<<0) /* unused */
/*
@@ -72,4 +69,17 @@
#define KN02XA_EAR_ADDRESS (0x7ffffff<<2) /* address involved */
#define KN02XA_EAR_RES_0 (0x3<<0) /* unused */
+
+#ifndef __ASSEMBLY__
+
+#include <linux/interrupt.h>
+
+struct pt_regs;
+
+extern void dec_kn02xa_be_init(void);
+extern int dec_kn02xa_be_handler(struct pt_regs *regs, int is_fixup);
+extern irqreturn_t dec_kn02xa_be_interrupt(int irq, void *dev_id,
+ struct pt_regs *regs);
+#endif
+
#endif /* __ASM_MIPS_DEC_KN02XA_H */
diff --git a/include/asm-mips/dec/kn03.h b/include/asm-mips/dec/kn03.h
index 676abd1..edede92 100644
--- a/include/asm-mips/dec/kn03.h
+++ b/include/asm-mips/dec/kn03.h
@@ -10,24 +10,15 @@
*
* Copyright (C) 1995,1996 by Paul M. Antoine, some code and definitions
* are by courtesy of Chris Fraser.
- * Copyright (C) 2000, 2002, 2003 Maciej W. Rozycki
+ * Copyright (C) 2000, 2002, 2003, 2005 Maciej W. Rozycki
*/
#ifndef __ASM_MIPS_DEC_KN03_H
#define __ASM_MIPS_DEC_KN03_H
-#include <asm/addrspace.h>
#include <asm/dec/ecc.h>
#include <asm/dec/ioasic_addrs.h>
-#define KN03_SLOT_BASE KSEG1ADDR(0x1f800000)
-
-/*
- * Some port addresses...
- */
-#define KN03_IOASIC_BASE (KN03_SLOT_BASE + IOASIC_IOCTL) /* I/O ASIC */
-#define KN03_RTC_BASE (KN03_SLOT_BASE + IOASIC_TOY) /* RTC */
-#define KN03_MCR_BASE (KN03_SLOT_BASE + IOASIC_MCR) /* MCR */
-
+#define KN03_SLOT_BASE 0x1f800000
/*
* CPU interrupt bits.
diff --git a/include/asm-mips/dec/kn05.h b/include/asm-mips/dec/kn05.h
index b120362..15fe8f8 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
@@ -13,8 +15,8 @@
*
* 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
@@ -24,48 +26,50 @@
/*
* 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 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 */
diff --git a/include/asm-mips/dec/prom.h b/include/asm-mips/dec/prom.h
index a05d6d3..1384dd0 100644
--- a/include/asm-mips/dec/prom.h
+++ b/include/asm-mips/dec/prom.h
@@ -24,7 +24,7 @@
* PMAX/3MAX PROM entry points for DS2100/3100's and DS5000/2xx's.
* Many of these will work for MIPSen as well!
*/
-#define VEC_RESET (u64 *)KSEG1ADDR(0x1fc00000)
+#define VEC_RESET (u64 *)CKSEG1ADDR(0x1fc00000)
/* Prom base address */
#define PMAX_PROM_ENTRY(x) (VEC_RESET + (x)) /* Prom jump table */
@@ -111,19 +111,21 @@ extern int (*__pmax_close)(int);
* On MIPS64 we have to call PROM functions via a helper
* dispatcher to accomodate ABI incompatibilities.
*/
-#define __DEC_PROM_O32 __attribute__((alias("call_o32")))
-
-int _rex_bootinit(int (*)(void)) __DEC_PROM_O32;
-int _rex_bootread(int (*)(void)) __DEC_PROM_O32;
-int _rex_getbitmap(int (*)(memmap *), memmap *) __DEC_PROM_O32;
-unsigned long *_rex_slot_address(unsigned long *(*)(int), int) __DEC_PROM_O32;
-void *_rex_gettcinfo(void *(*)(void)) __DEC_PROM_O32;
-int _rex_getsysid(int (*)(void)) __DEC_PROM_O32;
-void _rex_clear_cache(void (*)(void)) __DEC_PROM_O32;
-
-int _prom_getchar(int (*)(void)) __DEC_PROM_O32;
-char *_prom_getenv(char *(*)(char *), char *) __DEC_PROM_O32;
-int _prom_printf(int (*)(char *, ...), char *, ...) __DEC_PROM_O32;
+#define __DEC_PROM_O32(fun, arg) fun arg __asm__(#fun); \
+ __asm__(#fun " = call_o32")
+
+int __DEC_PROM_O32(_rex_bootinit, (int (*)(void)));
+int __DEC_PROM_O32(_rex_bootread, (int (*)(void)));
+int __DEC_PROM_O32(_rex_getbitmap, (int (*)(memmap *), memmap *));
+unsigned long *__DEC_PROM_O32(_rex_slot_address,
+ (unsigned long *(*)(int), int));
+void *__DEC_PROM_O32(_rex_gettcinfo, (void *(*)(void)));
+int __DEC_PROM_O32(_rex_getsysid, (int (*)(void)));
+void __DEC_PROM_O32(_rex_clear_cache, (void (*)(void)));
+
+int __DEC_PROM_O32(_prom_getchar, (int (*)(void)));
+char *__DEC_PROM_O32(_prom_getenv, (char *(*)(char *), char *));
+int __DEC_PROM_O32(_prom_printf, (int (*)(char *, ...), char *, ...));
#define rex_bootinit() _rex_bootinit(__rex_bootinit)
diff --git a/include/asm-mips/dec/system.h b/include/asm-mips/dec/system.h
new file mode 100644
index 0000000..78af51f
--- /dev/null
+++ b/include/asm-mips/dec/system.h
@@ -0,0 +1,18 @@
+/*
+ * include/asm-mips/dec/system.h
+ *
+ * Generic DECstation/DECsystem bits.
+ *
+ * Copyright (C) 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
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#ifndef __ASM_DEC_SYSTEM_H
+#define __ASM_DEC_SYSTEM_H
+
+extern unsigned long dec_kn_slot_base, dec_kn_slot_size;
+
+#endif /* __ASM_DEC_SYSTEM_H */
diff --git a/include/asm-mips/dec/tc.h b/include/asm-mips/dec/tc.h
index d7bba43..9cb51f2 100644
--- a/include/asm-mips/dec/tc.h
+++ b/include/asm-mips/dec/tc.h
@@ -7,10 +7,8 @@
*
* Copyright (c) 1998 Harald Koerfgen
*/
-#ifndef ASM_TC_H
-#define ASM_TC_H
-
-extern unsigned long system_base;
+#ifndef __ASM_DEC_TC_H
+#define __ASM_DEC_TC_H
/*
* Search for a TURBOchannel Option Module
@@ -36,8 +34,8 @@ extern unsigned long get_tc_base_addr(int);
*/
extern unsigned long get_tc_irq_nr(int);
/*
- * Return TURBOchannel clock frequency in hz
+ * Return TURBOchannel clock frequency in Hz
*/
extern unsigned long get_tc_speed(void);
-#endif
+#endif /* __ASM_DEC_TC_H */
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