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-rw-r--r--include/asm-mips/dec/ecc.h55
-rw-r--r--include/asm-mips/dec/interrupts.h125
-rw-r--r--include/asm-mips/dec/ioasic.h36
-rw-r--r--include/asm-mips/dec/ioasic_addrs.h151
-rw-r--r--include/asm-mips/dec/ioasic_ints.h74
-rw-r--r--include/asm-mips/dec/kn01.h83
-rw-r--r--include/asm-mips/dec/kn02.h106
-rw-r--r--include/asm-mips/dec/kn02ba.h67
-rw-r--r--include/asm-mips/dec/kn02ca.h79
-rw-r--r--include/asm-mips/dec/kn02xa.h75
-rw-r--r--include/asm-mips/dec/kn03.h83
-rw-r--r--include/asm-mips/dec/kn05.h71
-rw-r--r--include/asm-mips/dec/kn230.h26
-rw-r--r--include/asm-mips/dec/machtype.h27
-rw-r--r--include/asm-mips/dec/prom.h173
-rw-r--r--include/asm-mips/dec/serial.h36
-rw-r--r--include/asm-mips/dec/tc.h43
-rw-r--r--include/asm-mips/dec/tcinfo.h47
-rw-r--r--include/asm-mips/dec/tcmodule.h39
19 files changed, 1396 insertions, 0 deletions
diff --git a/include/asm-mips/dec/ecc.h b/include/asm-mips/dec/ecc.h
new file mode 100644
index 00000000000..724908b0bf1
--- /dev/null
+++ b/include/asm-mips/dec/ecc.h
@@ -0,0 +1,55 @@
+/*
+ * include/asm-mips/dec/ecc.h
+ *
+ * ECC handling logic definitions common to DECstation/DECsystem
+ * 5000/200 (KN02), 5000/240 (KN03), 5000/260 (KN05) and
+ * DECsystem 5900 (KN03), 5900/260 (KN05) systems.
+ *
+ * Copyright (C) 2003 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_MIPS_DEC_ECC_H
+#define __ASM_MIPS_DEC_ECC_H
+
+/*
+ * Error Address Register bits.
+ * The register is r/wc -- any write clears it.
+ */
+#define KN0X_EAR_VALID (1<<31) /* error data valid, bus IRQ */
+#define KN0X_EAR_CPU (1<<30) /* CPU/DMA transaction */
+#define KN0X_EAR_WRITE (1<<29) /* write/read transaction */
+#define KN0X_EAR_ECCERR (1<<28) /* ECC/timeout or overrun */
+#define KN0X_EAR_RES_27 (1<<27) /* unused */
+#define KN0X_EAR_ADDRESS (0x7ffffff<<0) /* address involved */
+
+/*
+ * Error Syndrome Register bits.
+ * The register is frozen when EAR.VALID is set, otherwise it records bits
+ * from the last memory read. The register is r/wc -- any write clears it.
+ */
+#define KN0X_ESR_VLDHI (1<<31) /* error data valid hi word */
+#define KN0X_ESR_CHKHI (0x7f<<24) /* check bits read from mem */
+#define KN0X_ESR_SNGHI (1<<23) /* single/double bit error */
+#define KN0X_ESR_SYNHI (0x7f<<16) /* syndrome from ECC logic */
+#define KN0X_ESR_VLDLO (1<<15) /* error data valid lo word */
+#define KN0X_ESR_CHKLO (0x7f<<8) /* check bits read from mem */
+#define KN0X_ESR_SNGLO (1<<7) /* single/double bit error */
+#define KN0X_ESR_SYNLO (0x7f<<0) /* syndrome from ECC logic */
+
+
+#ifndef __ASSEMBLY__
+
+#include <linux/interrupt.h>
+
+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);
+#endif
+
+#endif /* __ASM_MIPS_DEC_ECC_H */
diff --git a/include/asm-mips/dec/interrupts.h b/include/asm-mips/dec/interrupts.h
new file mode 100644
index 00000000000..273e4d65bfe
--- /dev/null
+++ b/include/asm-mips/dec/interrupts.h
@@ -0,0 +1,125 @@
+/*
+ * Miscellaneous definitions used to initialise the interrupt vector table
+ * with the machine-specific interrupt routines.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1997 by Paul M. Antoine.
+ * reworked 1998 by Harald Koerfgen.
+ * Copyright (C) 2001, 2002, 2003 Maciej W. Rozycki
+ */
+
+#ifndef __ASM_DEC_INTERRUPTS_H
+#define __ASM_DEC_INTERRUPTS_H
+
+#include <asm/mipsregs.h>
+
+
+/*
+ * The list of possible system devices which provide an
+ * interrupt. Not all devices exist on a given system.
+ */
+#define DEC_IRQ_CASCADE 0 /* cascade from CSR or I/O ASIC */
+
+/* Ordinary interrupts */
+#define DEC_IRQ_AB_RECV 1 /* ACCESS.bus receive */
+#define DEC_IRQ_AB_XMIT 2 /* ACCESS.bus transmit */
+#define DEC_IRQ_DZ11 3 /* DZ11 (DC7085) serial */
+#define DEC_IRQ_ASC 4 /* ASC (NCR53C94) SCSI */
+#define DEC_IRQ_FLOPPY 5 /* 82077 FDC */
+#define DEC_IRQ_FPU 6 /* R3k FPU */
+#define DEC_IRQ_HALT 7 /* HALT button or from ACCESS.Bus */
+#define DEC_IRQ_ISDN 8 /* Am79C30A ISDN */
+#define DEC_IRQ_LANCE 9 /* LANCE (Am7990) Ethernet */
+#define DEC_IRQ_BUS 10 /* memory, I/O bus read/write errors */
+#define DEC_IRQ_PSU 11 /* power supply unit warning */
+#define DEC_IRQ_RTC 12 /* DS1287 RTC */
+#define DEC_IRQ_SCC0 13 /* SCC (Z85C30) serial #0 */
+#define DEC_IRQ_SCC1 14 /* SCC (Z85C30) serial #1 */
+#define DEC_IRQ_SII 15 /* SII (DC7061) SCSI */
+#define DEC_IRQ_TC0 16 /* TURBOchannel slot #0 */
+#define DEC_IRQ_TC1 17 /* TURBOchannel slot #1 */
+#define DEC_IRQ_TC2 18 /* TURBOchannel slot #2 */
+#define DEC_IRQ_TIMER 19 /* ARC periodic timer */
+#define DEC_IRQ_VIDEO 20 /* framebuffer */
+
+/* I/O ASIC DMA interrupts */
+#define DEC_IRQ_ASC_MERR 21 /* ASC memory read error */
+#define DEC_IRQ_ASC_ERR 22 /* ASC page overrun */
+#define DEC_IRQ_ASC_DMA 23 /* ASC buffer pointer loaded */
+#define DEC_IRQ_FLOPPY_ERR 24 /* FDC error */
+#define DEC_IRQ_ISDN_ERR 25 /* ISDN memory read/overrun error */
+#define DEC_IRQ_ISDN_RXDMA 26 /* ISDN recv buffer pointer loaded */
+#define DEC_IRQ_ISDN_TXDMA 27 /* ISDN xmit buffer pointer loaded */
+#define DEC_IRQ_LANCE_MERR 28 /* LANCE memory read error */
+#define DEC_IRQ_SCC0A_RXERR 29 /* SCC0A (printer) receive overrun */
+#define DEC_IRQ_SCC0A_RXDMA 30 /* SCC0A receive half page */
+#define DEC_IRQ_SCC0A_TXERR 31 /* SCC0A xmit memory read/overrun */
+#define DEC_IRQ_SCC0A_TXDMA 32 /* SCC0A transmit page end */
+#define DEC_IRQ_AB_RXERR 33 /* ACCESS.bus receive overrun */
+#define DEC_IRQ_AB_RXDMA 34 /* ACCESS.bus receive half page */
+#define DEC_IRQ_AB_TXERR 35 /* ACCESS.bus xmit memory read/ovrn */
+#define DEC_IRQ_AB_TXDMA 36 /* ACCESS.bus transmit page end */
+#define DEC_IRQ_SCC1A_RXERR 37 /* SCC1A (modem) receive overrun */
+#define DEC_IRQ_SCC1A_RXDMA 38 /* SCC1A receive half page */
+#define DEC_IRQ_SCC1A_TXERR 39 /* SCC1A xmit memory read/overrun */
+#define DEC_IRQ_SCC1A_TXDMA 40 /* SCC1A transmit page end */
+
+/* TC5 & TC6 are virtual slots for KN02's onboard devices */
+#define DEC_IRQ_TC5 DEC_IRQ_ASC /* virtual PMAZ-AA */
+#define DEC_IRQ_TC6 DEC_IRQ_LANCE /* virtual PMAD-AA */
+
+#define DEC_NR_INTS 41
+
+
+/* Largest of cpu mask_nr tables. */
+#define DEC_MAX_CPU_INTS 6
+/* Largest of asic mask_nr tables. */
+#define DEC_MAX_ASIC_INTS 9
+
+
+/*
+ * CPU interrupt bits common to all systems.
+ */
+#define DEC_CPU_INR_FPU 7 /* R3k FPU */
+#define DEC_CPU_INR_SW1 1 /* software #1 */
+#define DEC_CPU_INR_SW0 0 /* software #0 */
+
+#define DEC_CPU_IRQ_BASE 0 /* first IRQ assigned to CPU */
+
+#define DEC_CPU_IRQ_NR(n) ((n) + DEC_CPU_IRQ_BASE)
+#define DEC_CPU_IRQ_MASK(n) (1 << ((n) + CAUSEB_IP))
+#define DEC_CPU_IRQ_ALL (0xff << CAUSEB_IP)
+
+
+#ifndef __ASSEMBLY__
+
+/*
+ * Interrupt table structures to hide differences between systems.
+ */
+typedef union { int i; void *p; } int_ptr;
+extern int dec_interrupt[DEC_NR_INTS];
+extern int_ptr cpu_mask_nr_tbl[DEC_MAX_CPU_INTS][2];
+extern int_ptr asic_mask_nr_tbl[DEC_MAX_ASIC_INTS][2];
+extern int cpu_fpu_mask;
+
+
+/*
+ * Common interrupt routine prototypes for all DECStations
+ */
+extern void kn02_io_int(void);
+extern void kn02xa_io_int(void);
+extern void kn03_io_int(void);
+extern void asic_dma_int(void);
+extern void asic_all_int(void);
+extern void kn02_all_int(void);
+extern void cpu_all_int(void);
+
+extern void dec_intr_unimplemented(void);
+extern void asic_intr_unimplemented(void);
+
+#endif /* __ASSEMBLY__ */
+
+#endif
diff --git a/include/asm-mips/dec/ioasic.h b/include/asm-mips/dec/ioasic.h
new file mode 100644
index 00000000000..486a5b0a130
--- /dev/null
+++ b/include/asm-mips/dec/ioasic.h
@@ -0,0 +1,36 @@
+/*
+ * include/asm-mips/dec/ioasic.h
+ *
+ * DEC I/O ASIC access operations.
+ *
+ * Copyright (C) 2000, 2002, 2003 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_IOASIC_H
+#define __ASM_DEC_IOASIC_H
+
+#include <linux/spinlock.h>
+#include <linux/types.h>
+
+extern spinlock_t ioasic_ssr_lock;
+
+extern volatile u32 *ioasic_base;
+
+static inline void ioasic_write(unsigned int reg, u32 v)
+{
+ ioasic_base[reg / 4] = v;
+}
+
+static inline u32 ioasic_read(unsigned int reg)
+{
+ return ioasic_base[reg / 4];
+}
+
+extern void init_ioasic_irqs(int base);
+
+#endif /* __ASM_DEC_IOASIC_H */
diff --git a/include/asm-mips/dec/ioasic_addrs.h b/include/asm-mips/dec/ioasic_addrs.h
new file mode 100644
index 00000000000..5e18a751059
--- /dev/null
+++ b/include/asm-mips/dec/ioasic_addrs.h
@@ -0,0 +1,151 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Definitions for the address map in the JUNKIO Asic
+ *
+ * Created with Information from:
+ *
+ * "DEC 3000 300/400/500/600/700/800/900 AXP Models System Programmer's Manual"
+ *
+ * and the Mach Sources
+ *
+ * Copyright (C) 199x the Anonymous
+ * Copyright (C) 2002, 2003 Maciej W. Rozycki
+ */
+
+#ifndef __ASM_MIPS_DEC_IOASIC_ADDRS_H
+#define __ASM_MIPS_DEC_IOASIC_ADDRS_H
+
+#define IOASIC_SLOT_SIZE 0x00040000
+
+/*
+ * Address ranges decoded by the I/O ASIC for onboard devices.
+ */
+#define IOASIC_SYS_ROM (0*IOASIC_SLOT_SIZE) /* system board ROM */
+#define IOASIC_IOCTL (1*IOASIC_SLOT_SIZE) /* I/O ASIC */
+#define IOASIC_ESAR (2*IOASIC_SLOT_SIZE) /* LANCE MAC address chip */
+#define IOASIC_LANCE (3*IOASIC_SLOT_SIZE) /* LANCE Ethernet */
+#define IOASIC_SCC0 (4*IOASIC_SLOT_SIZE) /* SCC #0 */
+#define IOASIC_VDAC_HI (5*IOASIC_SLOT_SIZE) /* VDAC (maxine) */
+#define IOASIC_SCC1 (6*IOASIC_SLOT_SIZE) /* SCC #1 (3min, 3max+) */
+#define IOASIC_VDAC_LO (7*IOASIC_SLOT_SIZE) /* VDAC (maxine) */
+#define IOASIC_TOY (8*IOASIC_SLOT_SIZE) /* RTC */
+#define IOASIC_ISDN (9*IOASIC_SLOT_SIZE) /* ISDN (maxine) */
+#define IOASIC_ERRADDR (9*IOASIC_SLOT_SIZE) /* bus error address (3max+) */
+#define IOASIC_CHKSYN (10*IOASIC_SLOT_SIZE) /* ECC syndrome (3max+) */
+#define IOASIC_ACC_BUS (10*IOASIC_SLOT_SIZE) /* ACCESS.bus (maxine) */
+#define IOASIC_MCR (11*IOASIC_SLOT_SIZE) /* memory control (3max+) */
+#define IOASIC_FLOPPY (11*IOASIC_SLOT_SIZE) /* FDC (maxine) */
+#define IOASIC_SCSI (12*IOASIC_SLOT_SIZE) /* ASC SCSI */
+#define IOASIC_FDC_DMA (13*IOASIC_SLOT_SIZE) /* FDC DMA (maxine) */
+#define IOASIC_SCSI_DMA (14*IOASIC_SLOT_SIZE) /* ??? */
+#define IOASIC_RES_15 (15*IOASIC_SLOT_SIZE) /* unused? */
+
+
+/*
+ * Offsets for I/O ASIC registers (relative to (system_base + IOASIC_IOCTL)).
+ */
+ /* all systems */
+#define IO_REG_SCSI_DMA_P 0x00 /* SCSI DMA Pointer */
+#define IO_REG_SCSI_DMA_BP 0x10 /* SCSI DMA Buffer Pointer */
+#define IO_REG_LANCE_DMA_P 0x20 /* LANCE DMA Pointer */
+#define IO_REG_SCC0A_T_DMA_P 0x30 /* SCC0A Transmit DMA Pointer */
+#define IO_REG_SCC0A_R_DMA_P 0x40 /* SCC0A Receive DMA Pointer */
+
+ /* except Maxine */
+#define IO_REG_SCC1A_T_DMA_P 0x50 /* SCC1A Transmit DMA Pointer */
+#define IO_REG_SCC1A_R_DMA_P 0x60 /* SCC1A Receive DMA Pointer */
+
+ /* Maxine */
+#define IO_REG_AB_T_DMA_P 0x50 /* ACCESS.bus Transmit DMA Pointer */
+#define IO_REG_AB_R_DMA_P 0x60 /* ACCESS.bus Receive DMA Pointer */
+#define IO_REG_FLOPPY_DMA_P 0x70 /* Floppy DMA Pointer */
+#define IO_REG_ISDN_T_DMA_P 0x80 /* ISDN Transmit DMA Pointer */
+#define IO_REG_ISDN_T_DMA_BP 0x90 /* ISDN Transmit DMA Buffer Pointer */
+#define IO_REG_ISDN_R_DMA_P 0xa0 /* ISDN Receive DMA Pointer */
+#define IO_REG_ISDN_R_DMA_BP 0xb0 /* ISDN Receive DMA Buffer Pointer */
+
+ /* all systems */
+#define IO_REG_DATA_0 0xc0 /* System Data Buffer 0 */
+#define IO_REG_DATA_1 0xd0 /* System Data Buffer 1 */
+#define IO_REG_DATA_2 0xe0 /* System Data Buffer 2 */
+#define IO_REG_DATA_3 0xf0 /* System Data Buffer 3 */
+
+ /* all systems */
+#define IO_REG_SSR 0x100 /* System Support Register */
+#define IO_REG_SIR 0x110 /* System Interrupt Register */
+#define IO_REG_SIMR 0x120 /* System Interrupt Mask Reg. */
+#define IO_REG_SAR 0x130 /* System Address Register */
+
+ /* Maxine */
+#define IO_REG_ISDN_T_DATA 0x140 /* ISDN Xmit Data Register */
+#define IO_REG_ISDN_R_DATA 0x150 /* ISDN Receive Data Register */
+
+ /* all systems */
+#define IO_REG_LANCE_SLOT 0x160 /* LANCE I/O Slot Register */
+#define IO_REG_SCSI_SLOT 0x170 /* SCSI Slot Register */
+#define IO_REG_SCC0A_SLOT 0x180 /* SCC0A DMA Slot Register */
+
+ /* except Maxine */
+#define IO_REG_SCC1A_SLOT 0x190 /* SCC1A DMA Slot Register */
+
+ /* Maxine */
+#define IO_REG_AB_SLOT 0x190 /* ACCESS.bus DMA Slot Register */
+#define IO_REG_FLOPPY_SLOT 0x1a0 /* Floppy Slot Register */
+
+ /* all systems */
+#define IO_REG_SCSI_SCR 0x1b0 /* SCSI Partial-Word DMA Control */
+#define IO_REG_SCSI_SDR0 0x1c0 /* SCSI DMA Partial Word 0 */
+#define IO_REG_SCSI_SDR1 0x1d0 /* SCSI DMA Partial Word 1 */
+#define IO_REG_FCTR 0x1e0 /* Free-Running Counter */
+#define IO_REG_RES_31 0x1f0 /* unused */
+
+
+/*
+ * The upper 16 bits of the System Support Register are a part of the
+ * I/O ASIC's internal DMA engine and thus are common to all I/O ASIC
+ * machines. The exception is the Maxine, which makes use of the
+ * FLOPPY and ISDN bits (otherwise unused) and has a different SCC
+ * wiring.
+ */
+ /* all systems */
+#define IO_SSR_SCC0A_TX_DMA_EN (1<<31) /* SCC0A transmit DMA enable */
+#define IO_SSR_SCC0A_RX_DMA_EN (1<<30) /* SCC0A receive DMA enable */
+#define IO_SSR_RES_27 (1<<27) /* unused */
+#define IO_SSR_RES_26 (1<<26) /* unused */
+#define IO_SSR_RES_25 (1<<25) /* unused */
+#define IO_SSR_RES_24 (1<<24) /* unused */
+#define IO_SSR_RES_23 (1<<23) /* unused */
+#define IO_SSR_SCSI_DMA_DIR (1<<18) /* SCSI DMA direction */
+#define IO_SSR_SCSI_DMA_EN (1<<17) /* SCSI DMA enable */
+#define IO_SSR_LANCE_DMA_EN (1<<16) /* LANCE DMA enable */
+
+ /* except Maxine */
+#define IO_SSR_SCC1A_TX_DMA_EN (1<<29) /* SCC1A transmit DMA enable */
+#define IO_SSR_SCC1A_RX_DMA_EN (1<<28) /* SCC1A receive DMA enable */
+#define IO_SSR_RES_22 (1<<22) /* unused */
+#define IO_SSR_RES_21 (1<<21) /* unused */
+#define IO_SSR_RES_20 (1<<20) /* unused */
+#define IO_SSR_RES_19 (1<<19) /* unused */
+
+ /* Maxine */
+#define IO_SSR_AB_TX_DMA_EN (1<<29) /* ACCESS.bus xmit DMA enable */
+#define IO_SSR_AB_RX_DMA_EN (1<<28) /* ACCESS.bus recv DMA enable */
+#define IO_SSR_FLOPPY_DMA_DIR (1<<22) /* Floppy DMA direction */
+#define IO_SSR_FLOPPY_DMA_EN (1<<21) /* Floppy DMA enable */
+#define IO_SSR_ISDN_TX_DMA_EN (1<<20) /* ISDN transmit DMA enable */
+#define IO_SSR_ISDN_RX_DMA_EN (1<<19) /* ISDN receive DMA enable */
+
+/*
+ * The lower 16 bits are system-specific. Bits 15,11:8 are common and
+ * defined here. The rest is defined in system-specific headers.
+ */
+#define KN0X_IO_SSR_DIAGDN (1<<15) /* diagnostic jumper */
+#define KN0X_IO_SSR_SCC_RST (1<<11) /* ~SCC0,1 (Z85C30) reset */
+#define KN0X_IO_SSR_RTC_RST (1<<10) /* ~RTC (DS1287) reset */
+#define KN0X_IO_SSR_ASC_RST (1<<9) /* ~ASC (NCR53C94) reset */
+#define KN0X_IO_SSR_LANCE_RST (1<<8) /* ~LANCE (Am7990) reset */
+
+#endif /* __ASM_MIPS_DEC_IOASIC_ADDRS_H */
diff --git a/include/asm-mips/dec/ioasic_ints.h b/include/asm-mips/dec/ioasic_ints.h
new file mode 100644
index 00000000000..9aaa9869615
--- /dev/null
+++ b/include/asm-mips/dec/ioasic_ints.h
@@ -0,0 +1,74 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Definitions for the interrupt related bits in the I/O ASIC
+ * interrupt status register (and the interrupt mask register, of course)
+ *
+ * Created with Information from:
+ *
+ * "DEC 3000 300/400/500/600/700/800/900 AXP Models System Programmer's Manual"
+ *
+ * and the Mach Sources
+ *
+ * Copyright (C) 199x the Anonymous
+ * Copyright (C) 2002 Maciej W. Rozycki
+ */
+
+#ifndef __ASM_DEC_IOASIC_INTS_H
+#define __ASM_DEC_IOASIC_INTS_H
+
+/*
+ * The upper 16 bits are a part of the I/O ASIC's internal DMA engine
+ * and thus are common to all I/O ASIC machines. The exception is
+ * the Maxine, which makes use of the FLOPPY and ISDN bits (otherwise
+ * unused) and has a different SCC wiring.
+ */
+ /* all systems */
+#define IO_INR_SCC0A_TXDMA 31 /* SCC0A transmit page end */
+#define IO_INR_SCC0A_TXERR 30 /* SCC0A transmit memory read error */
+#define IO_INR_SCC0A_RXDMA 29 /* SCC0A receive half page */
+#define IO_INR_SCC0A_RXERR 28 /* SCC0A receive overrun */
+#define IO_INR_ASC_DMA 19 /* ASC buffer pointer loaded */
+#define IO_INR_ASC_ERR 18 /* ASC page overrun */
+#define IO_INR_ASC_MERR 17 /* ASC memory read error */
+#define IO_INR_LANCE_MERR 16 /* LANCE memory read error */
+
+ /* except Maxine */
+#define IO_INR_SCC1A_TXDMA 27 /* SCC1A transmit page end */
+#define IO_INR_SCC1A_TXERR 26 /* SCC1A transmit memory read error */
+#define IO_INR_SCC1A_RXDMA 25 /* SCC1A receive half page */
+#define IO_INR_SCC1A_RXERR 24 /* SCC1A receive overrun */
+#define IO_INR_RES_23 23 /* unused */
+#define IO_INR_RES_22 22 /* unused */
+#define IO_INR_RES_21 21 /* unused */
+#define IO_INR_RES_20 20 /* unused */
+
+ /* Maxine */
+#define IO_INR_AB_TXDMA 27 /* ACCESS.bus transmit page end */
+#define IO_INR_AB_TXERR 26 /* ACCESS.bus xmit memory read error */
+#define IO_INR_AB_RXDMA 25 /* ACCESS.bus receive half page */
+#define IO_INR_AB_RXERR 24 /* ACCESS.bus receive overrun */
+#define IO_INR_FLOPPY_ERR 23 /* FDC error */
+#define IO_INR_ISDN_TXDMA 22 /* ISDN xmit buffer pointer loaded */
+#define IO_INR_ISDN_RXDMA 21 /* ISDN recv buffer pointer loaded */
+#define IO_INR_ISDN_ERR 20 /* ISDN memory read/overrun error */
+
+#define IO_INR_DMA 16 /* first DMA IRQ */
+
+/*
+ * The lower 16 bits are system-specific and thus defined in
+ * system-specific headers.
+ */
+
+
+#define IO_IRQ_BASE 8 /* first IRQ assigned to I/O ASIC */
+#define IO_IRQ_LINES 32 /* number of I/O ASIC interrupts */
+
+#define IO_IRQ_NR(n) ((n) + IO_IRQ_BASE)
+#define IO_IRQ_MASK(n) (1 << (n))
+#define IO_IRQ_ALL 0x0000ffff
+#define IO_IRQ_DMA 0xffff0000
+
+#endif /* __ASM_DEC_IOASIC_INTS_H */
diff --git a/include/asm-mips/dec/kn01.h b/include/asm-mips/dec/kn01.h
new file mode 100644
index 00000000000..946943502f8
--- /dev/null
+++ b/include/asm-mips/dec/kn01.h
@@ -0,0 +1,83 @@
+/*
+ * Hardware info about DECstation DS2100/3100 systems (otherwise known as
+ * pmin/pmax or KN01).
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * 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
+ */
+#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_SIZE 0x01000000
+
+/*
+ * Address ranges for devices.
+ */
+#define KN01_PMASK (0*KN01_SLOT_SIZE) /* color plane mask */
+#define KN01_PCC (1*KN01_SLOT_SIZE) /* PCC (DC503) cursor */
+#define KN01_VDAC (2*KN01_SLOT_SIZE) /* color map */
+#define KN01_RES_3 (3*KN01_SLOT_SIZE) /* unused */
+#define KN01_RES_4 (4*KN01_SLOT_SIZE) /* unused */
+#define KN01_RES_5 (5*KN01_SLOT_SIZE) /* unused */
+#define KN01_RES_6 (6*KN01_SLOT_SIZE) /* unused */
+#define KN01_ERRADDR (7*KN01_SLOT_SIZE) /* write error address */
+#define KN01_LANCE (8*KN01_SLOT_SIZE) /* LANCE (Am7990) Ethernet */
+#define KN01_LANCE_MEM (9*KN01_SLOT_SIZE) /* LANCE buffer memory */
+#define KN01_SII (10*KN01_SLOT_SIZE) /* SII (DC7061) SCSI */
+#define KN01_SII_MEM (11*KN01_SLOT_SIZE) /* SII buffer memory */
+#define KN01_DZ11 (12*KN01_SLOT_SIZE) /* DZ11 (DC7085) serial */
+#define KN01_RTC (13*KN01_SLOT_SIZE) /* DS1287 RTC (bytes #0) */
+#define KN01_ESAR (13*KN01_SLOT_SIZE) /* MAC address (bytes #1) */
+#define KN01_CSR (14*KN01_SLOT_SIZE) /* system ctrl & status reg */
+#define KN01_SYS_ROM (15*KN01_SLOT_SIZE) /* system board ROM */
+
+
+/*
+ * 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)
+
+/*
+ * CPU interrupt bits.
+ */
+#define KN01_CPU_INR_BUS 6 /* memory, I/O bus read/write errors */
+#define KN01_CPU_INR_VIDEO 6 /* PCC area detect #2 */
+#define KN01_CPU_INR_RTC 5 /* DS1287 RTC */
+#define KN01_CPU_INR_DZ11 4 /* DZ11 (DC7085) serial */
+#define KN01_CPU_INR_LANCE 3 /* LANCE (Am7990) Ethernet */
+#define KN01_CPU_INR_SII 2 /* SII (DC7061) SCSI */
+
+
+/*
+ * System Control & Status Register bits.
+ */
+#define KN01_CSR_MNFMOD (1<<15) /* MNFMOD manufacturing jumper */
+#define KN01_CSR_STATUS (1<<14) /* self-test result status output */
+#define KN01_CSR_PARDIS (1<<13) /* parity error disable */
+#define KN01_CSR_CRSRTST (1<<12) /* PCC test output */
+#define KN01_CSR_MONO (1<<11) /* mono/color fb SIMM installed */
+#define KN01_CSR_MEMERR (1<<10) /* write timeout error status & ack*/
+#define KN01_CSR_VINT (1<<9) /* PCC area detect #2 status & ack */
+#define KN01_CSR_TXDIS (1<<8) /* DZ11 transmit disable */
+#define KN01_CSR_VBGTRG (1<<2) /* blue DAC voltage over green (r/o) */
+#define KN01_CSR_VRGTRG (1<<1) /* red DAC voltage over green (r/o) */
+#define KN01_CSR_VRGTRB (1<<0) /* red DAC voltage over blue (r/o) */
+#define KN01_CSR_LEDS (0xff<<0) /* ~diagnostic LEDs (w/o) */
+
+#endif /* __ASM_MIPS_DEC_KN01_H */
diff --git a/include/asm-mips/dec/kn02.h b/include/asm-mips/dec/kn02.h
new file mode 100644
index 00000000000..f797f704592
--- /dev/null
+++ b/include/asm-mips/dec/kn02.h
@@ -0,0 +1,106 @@
+/*
+ * Hardware info about DECstation 5000/200 systems (otherwise known as
+ * 3max or KN02).
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * 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
+ */
+#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_SIZE 0x00080000
+
+/*
+ * Address ranges decoded by the "system slot" logic for onboard devices.
+ */
+#define KN02_SYS_ROM (0*KN02_SLOT_SIZE) /* system board ROM */
+#define KN02_RES_1 (1*KN02_SLOT_SIZE) /* unused */
+#define KN02_CHKSYN (2*KN02_SLOT_SIZE) /* ECC syndrome */
+#define KN02_ERRADDR (3*KN02_SLOT_SIZE) /* bus error address */
+#define KN02_DZ11 (4*KN02_SLOT_SIZE) /* DZ11 (DC7085) serial */
+#define KN02_RTC (5*KN02_SLOT_SIZE) /* DS1287 RTC */
+#define KN02_CSR (6*KN02_SLOT_SIZE) /* system ctrl & status reg */
+#define KN02_SYS_ROM_7 (7*KN02_SLOT_SIZE) /* system board ROM (alias) */
+
+
+/*
+ * 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_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 */
+#define KN02_CSR_LEDIAG (1<<12) /* ECC diagn. latch strobe */
+#define KN02_CSR_TXDIS (1<<11) /* DZ11 transmit disable */
+#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) */
+
+
+/*
+ * CPU interrupt bits.
+ */
+#define KN02_CPU_INR_RES_6 6 /* unused */
+#define KN02_CPU_INR_BUS 5 /* memory, I/O bus read/write errors */
+#define KN02_CPU_INR_RES_4 4 /* unused */
+#define KN02_CPU_INR_RTC 3 /* DS1287 RTC */
+#define KN02_CPU_INR_CASCADE 2 /* CSR cascade */
+
+/*
+ * CSR interrupt bits.
+ */
+#define KN02_CSR_INR_DZ11 7 /* DZ11 (DC7085) serial */
+#define KN02_CSR_INR_LANCE 6 /* LANCE (Am7990) Ethernet */
+#define KN02_CSR_INR_ASC 5 /* ASC (NCR53C94) SCSI */
+#define KN02_CSR_INR_RES_4 4 /* unused */
+#define KN02_CSR_INR_RES_3 3 /* unused */
+#define KN02_CSR_INR_TC2 2 /* TURBOchannel slot #2 */
+#define KN02_CSR_INR_TC1 1 /* TURBOchannel slot #1 */
+#define KN02_CSR_INR_TC0 0 /* TURBOchannel slot #0 */
+
+
+#define KN02_IRQ_BASE 8 /* first IRQ assigned to CSR */
+#define KN02_IRQ_LINES 8 /* number of CSR interrupts */
+
+#define KN02_IRQ_NR(n) ((n) + KN02_IRQ_BASE)
+#define KN02_IRQ_MASK(n) (1 << (n))
+#define KN02_IRQ_ALL 0xff
+
+
+#ifndef __ASSEMBLY__
+extern u32 cached_kn02_csr;
+extern spinlock_t kn02_lock;
+extern void init_kn02_irqs(int base);
+#endif
+
+#endif /* __ASM_MIPS_DEC_KN02_H */
diff --git a/include/asm-mips/dec/kn02ba.h b/include/asm-mips/dec/kn02ba.h
new file mode 100644
index 00000000000..c957a4f1b32
--- /dev/null
+++ b/include/asm-mips/dec/kn02ba.h
@@ -0,0 +1,67 @@
+/*
+ * include/asm-mips/dec/kn02ba.h
+ *
+ * DECstation 5000/1xx (3min or KN02-BA) definitions.
+ *
+ * Copyright (C) 2002, 2003 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_MIPS_DEC_KN02BA_H
+#define __ASM_MIPS_DEC_KN02BA_H
+
+#include <asm/dec/kn02xa.h> /* For common definitions. */
+
+/*
+ * CPU interrupt bits.
+ */
+#define KN02BA_CPU_INR_HALT 6 /* HALT button */
+#define KN02BA_CPU_INR_CASCADE 5 /* I/O ASIC cascade */
+#define KN02BA_CPU_INR_TC2 4 /* TURBOchannel slot #2 */
+#define KN02BA_CPU_INR_TC1 3 /* TURBOchannel slot #1 */
+#define KN02BA_CPU_INR_TC0 2 /* TURBOchannel slot #0 */
+
+/*
+ * I/O ASIC interrupt bits. Star marks denote non-IRQ status bits.
+ */
+#define KN02BA_IO_INR_RES_15 15 /* unused */
+#define KN02BA_IO_INR_NVRAM 14 /* (*) NVRAM clear jumper */
+#define KN02BA_IO_INR_RES_13 13 /* unused */
+#define KN02BA_IO_INR_BUS 12 /* memory, I/O bus read/write errors */
+#define KN02BA_IO_INR_RES_11 11 /* unused */
+#define KN02BA_IO_INR_NRMOD 10 /* (*) NRMOD manufacturing jumper */
+#define KN02BA_IO_INR_ASC 9 /* ASC (NCR53C94) SCSI */
+#define KN02BA_IO_INR_LANCE 8 /* LANCE (Am7990) Ethernet */
+#define KN02BA_IO_INR_SCC1 7 /* SCC (Z85C30) serial #1 */
+#define KN02BA_IO_INR_SCC0 6 /* SCC (Z85C30) serial #0 */
+#define KN02BA_IO_INR_RTC 5 /* DS1287 RTC */
+#define KN02BA_IO_INR_PSU 4 /* power supply unit warning */
+#define KN02BA_IO_INR_RES_3 3 /* unused */
+#define KN02BA_IO_INR_ASC_DATA 2 /* SCSI data ready (for PIO) */
+#define KN02BA_IO_INR_PBNC 1 /* ~HALT button debouncer */
+#define KN02BA_IO_INR_PBNO 0 /* HALT button debouncer */
+
+
+/*
+ * Memory Error Register bits.
+ */
+#define KN02BA_MER_RES_27 (1<<27) /* unused */
+
+/*
+ * Memory Size Register bits.
+ */
+#define KN02BA_MSR_RES_17 (0x3ff<<17) /* unused */
+
+/*
+ * I/O ASIC System Support Register bits.
+ */
+#define KN02BA_IO_SSR_TXDIS1 (1<<14) /* SCC1 transmit disable */
+#define KN02BA_IO_SSR_TXDIS0 (1<<13) /* SCC0 transmit disable */
+#define KN02BA_IO_SSR_RES_12 (1<<12) /* unused */
+
+#define KN02BA_IO_SSR_LEDS (0xff<<0) /* ~diagnostic LEDs */
+
+#endif /* __ASM_MIPS_DEC_KN02BA_H */
diff --git a/include/asm-mips/dec/kn02ca.h b/include/asm-mips/dec/kn02ca.h
new file mode 100644
index 00000000000..92c0fe25609
--- /dev/null
+++ b/include/asm-mips/dec/kn02ca.h
@@ -0,0 +1,79 @@
+/*
+ * include/asm-mips/dec/kn02ca.h
+ *
+ * Personal DECstation 5000/xx (Maxine or KN02-CA) definitions.
+ *
+ * Copyright (C) 2002, 2003 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_MIPS_DEC_KN02CA_H
+#define __ASM_MIPS_DEC_KN02CA_H
+
+#include <asm/dec/kn02xa.h> /* For common definitions. */
+
+/*
+ * CPU interrupt bits.
+ */
+#define KN02CA_CPU_INR_HALT 6 /* HALT from ACCESS.Bus */
+#define KN02CA_CPU_INR_CASCADE 5 /* I/O ASIC cascade */
+#define KN02CA_CPU_INR_BUS 4 /* memory, I/O bus read/write errors */
+#define KN02CA_CPU_INR_RTC 3 /* DS1287 RTC */
+#define KN02CA_CPU_INR_TIMER 2 /* ARC periodic timer */
+
+/*
+ * I/O ASIC interrupt bits. Star marks denote non-IRQ status bits.
+ */
+#define KN02CA_IO_INR_FLOPPY 15 /* 82077 FDC */
+#define KN02CA_IO_INR_NVRAM 14 /* (*) NVRAM clear jumper */
+#define KN02CA_IO_INR_POWERON 13 /* (*) ACCESS.Bus/power-on reset */
+#define KN02CA_IO_INR_TC0 12 /* TURBOchannel slot #0 */
+#define KN02CA_IO_INR_TIMER 12 /* ARC periodic timer (?) */
+#define KN02CA_IO_INR_ISDN 11 /* Am79C30A ISDN */
+#define KN02CA_IO_INR_NRMOD 10 /* (*) NRMOD manufacturing jumper */
+#define KN02CA_IO_INR_ASC 9 /* ASC (NCR53C94) SCSI */
+#define KN02CA_IO_INR_LANCE 8 /* LANCE (Am7990) Ethernet */
+#define KN02CA_IO_INR_HDFLOPPY 7 /* (*) HD (1.44MB) floppy status */
+#define KN02CA_IO_INR_SCC0 6 /* SCC (Z85C30) serial #0 */
+#define KN02CA_IO_INR_TC1 5 /* TURBOchannel slot #1 */
+#define KN02CA_IO_INR_XDFLOPPY 4 /* (*) XD (2.88MB) floppy status */
+#define KN02CA_IO_INR_VIDEO 3 /* framebuffer */
+#define KN02CA_IO_INR_XVIDEO 2 /* ~framebuffer */
+#define KN02CA_IO_INR_AB_XMIT 1 /* ACCESS.bus transmit */
+#define KN02CA_IO_INR_AB_RECV 0 /* ACCESS.bus receive */
+
+
+/*
+ * Memory Error Register bits.
+ */
+#define KN02CA_MER_INTR (1<<27) /* ARC IRQ status & ack */
+
+/*
+ * Memory Size Register bits.
+ */
+#define KN02CA_MSR_INTREN (1<<26) /* ARC periodic IRQ enable */
+#define KN02CA_MSR_MS10EN (1<<25) /* 10/1ms IRQ period select */
+#define KN02CA_MSR_PFORCE (0xf<<21) /* byte lane error force */
+#define KN02CA_MSR_MABEN (1<<20) /* A side VFB address enable */
+#define KN02CA_MSR_LASTBANK (0x7<<17) /* onboard RAM bank # */
+
+/*
+ * I/O ASIC System Support Register bits.
+ */
+#define KN03CA_IO_SSR_RES_14 (1<<14) /* unused */
+#define KN03CA_IO_SSR_RES_13 (1<<13) /* unused */
+#define KN03CA_IO_SSR_ISDN_RST (1<<12) /* ~ISDN (Am79C30A) reset */
+
+#define KN03CA_IO_SSR_FLOPPY_RST (1<<7) /* ~FDC (82077) reset */
+#define KN03CA_IO_SSR_VIDEO_RST (1<<6) /* ~framebuffer reset */
+#define KN03CA_IO_SSR_AB_RST (1<<5) /* ACCESS.bus reset */
+#define KN03CA_IO_SSR_RES_4 (1<<4) /* unused */
+#define KN03CA_IO_SSR_RES_3 (1<<4) /* unused */
+#define KN03CA_IO_SSR_RES_2 (1<<2) /* unused */
+#define KN03CA_IO_SSR_RES_1 (1<<1) /* unused */
+#define KN03CA_IO_SSR_LED (1<<0) /* power LED */
+
+#endif /* __ASM_MIPS_DEC_KN02CA_H */
diff --git a/include/asm-mips/dec/kn02xa.h b/include/asm-mips/dec/kn02xa.h
new file mode 100644
index 00000000000..648c4dcbba1
--- /dev/null
+++ b/include/asm-mips/dec/kn02xa.h
@@ -0,0 +1,75 @@
+/*
+ * Hardware info common to DECstation 5000/1xx systems (otherwise
+ * known as 3min or kn02ba) and Personal DECstations 5000/xx ones
+ * (otherwise known as maxine or kn02ca).
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * 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
+ *
+ * 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.
+ */
+#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 */
+#