274 lines
8.5 KiB
C
274 lines
8.5 KiB
C
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/*
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* Copyright 2001 MontaVista Software Inc.
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* Author: jsun@mvista.com or jsun@junsun.net
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*
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* Copyright (C) 2000 Geert Uytterhoeven <geert@sonycom.com>
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* Sony Software Development Center Europe (SDCE), Brussels
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*
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* include/asm-mips/ddb5xxx/ddb5xxx.h
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* Common header for all NEC DDB 5xxx boards, including 5074, 5476, 5477.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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*/
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#ifndef __ASM_DDB5XXX_DDB5XXX_H
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#define __ASM_DDB5XXX_DDB5XXX_H
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#include <linux/config.h>
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#include <linux/types.h>
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/*
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* This file is based on the following documentation:
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*
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* NEC Vrc 5074 System Controller Data Sheet, June 1998
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*
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* [jsun] It is modified so that this file only contains the macros
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* that are true for all DDB 5xxx boards. The modification is based on
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*
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* uPD31577(VRC5477) VR5432-SDRAM/PCI Bridge (Luke)
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* Preliminary Specification Decoment, Rev 1.1, 27 Dec, 2000
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*
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*/
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#define DDB_BASE 0xbfa00000
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#define DDB_SIZE 0x00200000 /* 2 MB */
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/*
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* Physical Device Address Registers (PDARs)
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*/
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#define DDB_SDRAM0 0x0000 /* SDRAM Bank 0 [R/W] */
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#define DDB_SDRAM1 0x0008 /* SDRAM Bank 1 [R/W] */
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#define DDB_DCS2 0x0010 /* Device Chip-Select 2 [R/W] */
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#define DDB_DCS3 0x0018 /* Device Chip-Select 3 [R/W] */
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#define DDB_DCS4 0x0020 /* Device Chip-Select 4 [R/W] */
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#define DDB_DCS5 0x0028 /* Device Chip-Select 5 [R/W] */
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#define DDB_DCS6 0x0030 /* Device Chip-Select 6 [R/W] */
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#define DDB_DCS7 0x0038 /* Device Chip-Select 7 [R/W] */
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#define DDB_DCS8 0x0040 /* Device Chip-Select 8 [R/W] */
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#define DDB_PCIW0 0x0060 /* PCI Address Window 0 [R/W] */
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#define DDB_PCIW1 0x0068 /* PCI Address Window 1 [R/W] */
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#define DDB_INTCS 0x0070 /* Controller Internal Registers and Devices */
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/* [R/W] */
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#define DDB_BOOTCS 0x0078 /* Boot ROM Chip-Select [R/W] */
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/* Vrc5477 has two more, IOPCIW0, IOPCIW1 */
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/*
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* CPU Interface Registers
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*/
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#define DDB_CPUSTAT 0x0080 /* CPU Status [R/W] */
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#define DDB_INTCTRL 0x0088 /* Interrupt Control [R/W] */
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#define DDB_INTSTAT0 0x0090 /* Interrupt Status 0 [R] */
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#define DDB_INTSTAT1 0x0098 /* Interrupt Status 1 and CPU Interrupt */
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/* Enable [R/W] */
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#define DDB_INTCLR 0x00A0 /* Interrupt Clear [R/W] */
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#define DDB_INTPPES 0x00A8 /* PCI Interrupt Control [R/W] */
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/*
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* Memory-Interface Registers
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*/
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#define DDB_MEMCTRL 0x00C0 /* Memory Control */
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#define DDB_ACSTIME 0x00C8 /* Memory Access Timing [R/W] */
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#define DDB_CHKERR 0x00D0 /* Memory Check Error Status [R] */
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/*
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* PCI-Bus Registers
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*/
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#define DDB_PCICTRL 0x00E0 /* PCI Control [R/W] */
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#define DDB_PCIARB 0x00E8 /* PCI Arbiter [R/W] */
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#define DDB_PCIINIT0 0x00F0 /* PCI Master (Initiator) 0 [R/W] */
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#define DDB_PCIINIT1 0x00F8 /* PCI Master (Initiator) 1 [R/W] */
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#define DDB_PCIERR 0x00B8 /* PCI Error [R/W] */
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/*
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* Local-Bus Registers
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*/
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#define DDB_LCNFG 0x0100 /* Local Bus Configuration [R/W] */
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#define DDB_LCST2 0x0110 /* Local Bus Chip-Select Timing 2 [R/W] */
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#define DDB_LCST3 0x0118 /* Local Bus Chip-Select Timing 3 [R/W] */
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#define DDB_LCST4 0x0120 /* Local Bus Chip-Select Timing 4 [R/W] */
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#define DDB_LCST5 0x0128 /* Local Bus Chip-Select Timing 5 [R/W] */
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#define DDB_LCST6 0x0130 /* Local Bus Chip-Select Timing 6 [R/W] */
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#define DDB_LCST7 0x0138 /* Local Bus Chip-Select Timing 7 [R/W] */
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#define DDB_LCST8 0x0140 /* Local Bus Chip-Select Timing 8 [R/W] */
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#define DDB_DCSFN 0x0150 /* Device Chip-Select Muxing and Output */
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/* Enables [R/W] */
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#define DDB_DCSIO 0x0158 /* Device Chip-Selects As I/O Bits [R/W] */
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#define DDB_BCST 0x0178 /* Local Boot Chip-Select Timing [R/W] */
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/*
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* DMA Registers
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*/
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#define DDB_DMACTRL0 0x0180 /* DMA Control 0 [R/W] */
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#define DDB_DMASRCA0 0x0188 /* DMA Source Address 0 [R/W] */
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#define DDB_DMADESA0 0x0190 /* DMA Destination Address 0 [R/W] */
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#define DDB_DMACTRL1 0x0198 /* DMA Control 1 [R/W] */
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#define DDB_DMASRCA1 0x01A0 /* DMA Source Address 1 [R/W] */
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#define DDB_DMADESA1 0x01A8 /* DMA Destination Address 1 [R/W] */
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/*
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* Timer Registers
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*/
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#define DDB_T0CTRL 0x01C0 /* SDRAM Refresh Control [R/W] */
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#define DDB_T0CNTR 0x01C8 /* SDRAM Refresh Counter [R/W] */
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#define DDB_T1CTRL 0x01D0 /* CPU-Bus Read Time-Out Control [R/W] */
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#define DDB_T1CNTR 0x01D8 /* CPU-Bus Read Time-Out Counter [R/W] */
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#define DDB_T2CTRL 0x01E0 /* General-Purpose Timer Control [R/W] */
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#define DDB_T2CNTR 0x01E8 /* General-Purpose Timer Counter [R/W] */
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#define DDB_T3CTRL 0x01F0 /* Watchdog Timer Control [R/W] */
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#define DDB_T3CNTR 0x01F8 /* Watchdog Timer Counter [R/W] */
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/*
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* PCI Configuration Space Registers
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*/
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#define DDB_PCI_BASE 0x0200
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#define DDB_VID 0x0200 /* PCI Vendor ID [R] */
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#define DDB_DID 0x0202 /* PCI Device ID [R] */
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#define DDB_PCICMD 0x0204 /* PCI Command [R/W] */
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#define DDB_PCISTS 0x0206 /* PCI Status [R/W] */
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#define DDB_REVID 0x0208 /* PCI Revision ID [R] */
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#define DDB_CLASS 0x0209 /* PCI Class Code [R] */
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#define DDB_CLSIZ 0x020C /* PCI Cache Line Size [R/W] */
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#define DDB_MLTIM 0x020D /* PCI Latency Timer [R/W] */
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#define DDB_HTYPE 0x020E /* PCI Header Type [R] */
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#define DDB_BIST 0x020F /* BIST [R] (unimplemented) */
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#define DDB_BARC 0x0210 /* PCI Base Address Register Control [R/W] */
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#define DDB_BAR0 0x0218 /* PCI Base Address Register 0 [R/W] */
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#define DDB_BAR1 0x0220 /* PCI Base Address Register 1 [R/W] */
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#define DDB_CIS 0x0228 /* PCI Cardbus CIS Pointer [R] */
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/* (unimplemented) */
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#define DDB_SSVID 0x022C /* PCI Sub-System Vendor ID [R/W] */
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#define DDB_SSID 0x022E /* PCI Sub-System ID [R/W] */
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#define DDB_ROM 0x0230 /* Expansion ROM Base Address [R] */
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/* (unimplemented) */
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#define DDB_INTLIN 0x023C /* PCI Interrupt Line [R/W] */
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#define DDB_INTPIN 0x023D /* PCI Interrupt Pin [R] */
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#define DDB_MINGNT 0x023E /* PCI Min_Gnt [R] (unimplemented) */
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#define DDB_MAXLAT 0x023F /* PCI Max_Lat [R] (unimplemented) */
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#define DDB_BAR2 0x0240 /* PCI Base Address Register 2 [R/W] */
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#define DDB_BAR3 0x0248 /* PCI Base Address Register 3 [R/W] */
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#define DDB_BAR4 0x0250 /* PCI Base Address Register 4 [R/W] */
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#define DDB_BAR5 0x0258 /* PCI Base Address Register 5 [R/W] */
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#define DDB_BAR6 0x0260 /* PCI Base Address Register 6 [R/W] */
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#define DDB_BAR7 0x0268 /* PCI Base Address Register 7 [R/W] */
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#define DDB_BAR8 0x0270 /* PCI Base Address Register 8 [R/W] */
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#define DDB_BARB 0x0278 /* PCI Base Address Register BOOT [R/W] */
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/*
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* Nile 4 Register Access
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*/
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static inline void ddb_sync(void)
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{
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/* The DDB5074 doesn't seem to like these accesses. They kill the board on
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* interrupt load
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*/
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#ifndef CONFIG_DDB5074
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volatile u32 *p = (volatile u32 *)0xbfc00000;
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(void)(*p);
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#endif
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}
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static inline void ddb_out32(u32 offset, u32 val)
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{
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*(volatile u32 *)(DDB_BASE+offset) = val;
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ddb_sync();
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}
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static inline u32 ddb_in32(u32 offset)
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{
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u32 val = *(volatile u32 *)(DDB_BASE+offset);
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ddb_sync();
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return val;
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}
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static inline void ddb_out16(u32 offset, u16 val)
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{
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*(volatile u16 *)(DDB_BASE+offset) = val;
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ddb_sync();
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}
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static inline u16 ddb_in16(u32 offset)
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{
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u16 val = *(volatile u16 *)(DDB_BASE+offset);
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ddb_sync();
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return val;
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}
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static inline void ddb_out8(u32 offset, u8 val)
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{
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*(volatile u8 *)(DDB_BASE+offset) = val;
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ddb_sync();
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}
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static inline u8 ddb_in8(u32 offset)
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{
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u8 val = *(volatile u8 *)(DDB_BASE+offset);
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ddb_sync();
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return val;
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}
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/*
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* Physical Device Address Registers
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*/
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extern u32
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ddb_calc_pdar(u32 phys, u32 size, int width, int on_memory_bus, int pci_visible);
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extern void
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ddb_set_pdar(u32 pdar, u32 phys, u32 size, int width,
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int on_memory_bus, int pci_visible);
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/*
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* PCI Master Registers
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*/
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#define DDB_PCICMD_IACK 0 /* PCI Interrupt Acknowledge */
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#define DDB_PCICMD_IO 1 /* PCI I/O Space */
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#define DDB_PCICMD_MEM 3 /* PCI Memory Space */
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#define DDB_PCICMD_CFG 5 /* PCI Configuration Space */
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/*
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* additional options for pci init reg (no shifting needed)
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*/
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#define DDB_PCI_CFGTYPE1 0x200 /* for pci init0/1 regs */
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#define DDB_PCI_ACCESS_32 0x10 /* for pci init0/1 regs */
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extern void ddb_set_pmr(u32 pmr, u32 type, u32 addr, u32 options);
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/*
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* we need to reset pci bus when we start up and shutdown
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*/
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extern void ddb_pci_reset_bus(void);
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/*
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* include the board dependent part
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*/
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#if defined(CONFIG_DDB5074)
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#include <asm/ddb5xxx/ddb5074.h>
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#elif defined(CONFIG_DDB5476)
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#include <asm/ddb5xxx/ddb5476.h>
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#elif defined(CONFIG_DDB5477)
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#include <asm/ddb5xxx/ddb5477.h>
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#else
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#error "Unknown DDB board!"
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#endif
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#endif /* __ASM_DDB5XXX_DDB5XXX_H */
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