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/* $OpenBSD: busswreg.h,v 1.1 2001/12/13 08:59:38 smurph Exp $ */
/*
* Memory map for BusSwitch chip found in mvme197 boards.
*/
#ifndef BUSSWREG_H
#define BUSSWREG_H
#define BS_BASE 0xFFF00000
struct bussw_reg {
volatile u_long bs_gcsr;
volatile u_short bs_iodata;
volatile u_short bs_iodir;
volatile u_short bs_psar1;
volatile u_short bs_pear1;
volatile u_short bs_psar2;
volatile u_short bs_pear2;
volatile u_short bs_psar3;
volatile u_short bs_pear3;
volatile u_short bs_psar4;
volatile u_short bs_pear4;
volatile u_short bs_ptr1;
volatile u_short bs_ptsr1;
volatile u_short bs_ptr2;
volatile u_short bs_ptsr2;
volatile u_short bs_ptr3;
volatile u_short bs_ptsr3;
volatile u_short bs_ptr4;
volatile u_short bs_ptsr4;
volatile u_short bs_ssar1;
volatile u_short bs_sear1;
volatile u_short bs_ssar2;
volatile u_short bs_sear2;
volatile u_short bs_ssar3;
volatile u_short bs_sear3;
volatile u_short bs_ssar4;
volatile u_short bs_sear4;
volatile u_short bs_str1;
volatile u_short bs_stsr1;
volatile u_short bs_str2;
volatile u_short bs_stsr2;
volatile u_short bs_str3;
volatile u_short bs_stsr3;
volatile u_short bs_str4;
volatile u_short bs_stsr4;
volatile u_long bs_par;
volatile u_long bs_sar;
volatile u_long bs_btimer;
volatile u_long bs_pal;
volatile u_long bs_wppa;
volatile u_long bs_wp;
volatile u_long bs_romcr;
volatile u_long bs_lmi;
volatile u_long bs_intr1;
volatile u_long bs_intr2;
volatile u_long bs_tcomp1;
volatile u_long bs_tcount1;
volatile u_long bs_tcomp2;
volatile u_long bs_tcount2;
volatile u_long bs_gpr1;
volatile u_long bs_gpr2;
volatile u_long bs_gpr3;
volatile u_long bs_gpr4;
volatile u_long bs_xctags;
volatile u_long bs_res3;
volatile u_long bs_xccr;
volatile u_long bs_vec1;
volatile u_long bs_vec2;
volatile u_long bs_vec3;
volatile u_long bs_vec4;
volatile u_long bs_vec5;
volatile u_long bs_vec6;
volatile u_long bs_vec7;
};
/* GCSR bit definitions */
#define BS_CHIPID(x) (((x)->bs_gcsr & 0xFF000000) >> 16)
#define BS_CHIPREV(x) (((x)->bs_gcsr & 0x00FF0000) >> 16)
#define BS_GCSR_APRI0 0x00000001 /* Bus Request 0 Priority indicator (CPU0)*/
#define BS_GCSR_APRI1 0x00000002 /* Bus Request 1 Priority indicator (CPU1)*/
#define BS_GCSR_APRI2 0x00000003 /* Bus Request 2 Priority indicator (mc88410)*/
#define BS_GCSR_AMOD 0x00000004 /* Arbitration Mode */
#define BS_GCSR_BREN 0x00000008 /* Bus Request Enable */
#define BS_GCSR_CPUID 0x00000010 /* CPU ID */
#define BS_GCSR_B410 0x00000020 /* BUS410 indicator */
#define BS_GCSR_INVD 0x00000040 /* Invalidate Decoder */
#define BS_GCSR_USR 0x00000080 /* User Access Enable */
#define BS_GCSR_XIPL 0x00000100 /* External IPL Enable */
#define BS_GCSR_TCPU1 0x00000200 /* Test CPU 1 Registers */
#define BS_GCSR_XCC 0x00000400 /* External Cache Controller */
#define BS_GCSR_INCB 0x00000800 /* Increment On Burst */
#define BS_GCSR_TDPR 0x00002000 /* Test Dual Processor Registers */
#define BS_GCSR_TBB 0x00004000 /* Test Bus Busy */
#define BS_GCSR_POR 0x00008000 /* Power On Reset */
/* System Attribute Registers bit definitions */
#define BS_SAR_DEN 0x01 /* Decode Enable */
#define BS_SAR_INVR 0x04 /* Invalidate On Reads */
#define BS_SAR_GBL 0x08 /* Global Access */
/* Bus Timer Register bit definitions */
#define BS_BTIMER_PBT8 0x00 /* Processor Bus Timout, 8 usec */
#define BS_BTIMER_PBT64 0x01 /* Processor Bus Timout, 64 usec */
#define BS_BTIMER_PBT256 0x02 /* Processor Bus Timout, 256 usec */
#define BS_BTIMER_PBTD 0x03 /* Processor Bus Timout, disable */
#define BS_BTIMER_SBT8 (0x00 << 2) /* System Bus Timout, 8 usec */
#define BS_BTIMER_SBT64 (0x01 << 2) /* System Bus Timout, 64 usec */
#define BS_BTIMER_SBT256 (0x02 << 2) /* System Bus Timout, 256 usec */
#define BS_BTIMER_SBTD (0x03 << 2) /* System Bus Timout, disable */
/* Prescaler Adjust values */
#define BS_PADJUST_50 0xCE /* 50 MHz clock */
#define BS_PADJUST_40 0xD8 /* 40 MHz clock */
#define BS_PADJUST_33 0xDF /* 33 MHz clock */
#define BS_PADJUST_25 0xE7 /* 25 MHz clock */
/* ROM Control Register bit definitions */
#define BS_ROMCR_WEN0 0x01000000
#define BS_ROMCR_WEN1 0x02000000
#define BS_ROMCR_SGLB 0x04000000
#define BS_ROMCR_ROM0 0x80000000
/* External Cache Control Register bit definitions */
#define BS_XCC_F0 0x00000001
#define BS_XCC_F1 0x00000002
#define BS_XCC_FBSY 0x00000004
#define BS_XCC_DIAG 0x00000008
/*
* INTR1 - Abort Control Register
* Cross Processor Interrupt Register
* Timer Interrupt 1 Register
* Timer Interrupt 2 Register
*/
#define BS_INTR1_ABORT_ICLR 0x08000000 /* abort interrupt clear */
#define BS_INTR1_ABORT_IEN 0x10000000 /* abort interrupt enable */
#define BS_INTR1_ABORT_INT 0x20000000 /* abort interrupt received */
#define BS_INTR1_ABORT_ABT 0x40000000 /* abort interrupt asserted */
#define BS_INTR1_CPI_ICLR 0x00080000 /* cpi interrupt clear */
#define BS_INTR1_CPI_IEN 0x00100000 /* cpi interrupt enable */
#define BS_INTR1_CPI_INT 0x00200000 /* cpi interrupt received */
#define BS_INTR1_CPI_STAT 0x00400000 /* cpi interrupt status */
#define BS_INTR1_CPI_SCPI 0x00800000 /* send cross proc interrupt */
#define BS_INTR1_TINT1_ICLR 0x00000800 /* timer 1 interrupt clear */
#define BS_INTR1_TINT1_IEN 0x00001000 /* timer 1 interrupt enable */
#define BS_INTR1_TINT1_INT 0x00002000 /* timer 1 interrupt received */
#define BS_INTR1_TINT1_LM 0x00000700 /* timer 1 level mask */
#define BS_INTR1_TINT1_LEVEL(x) ((x << 8) & BS_INTR1_TINT1_LM)
#define BS_INTR1_TINT2_ICLR 0x00000008 /* timer 1 interrupt clear */
#define BS_INTR1_TINT2_IEN 0x00000010 /* timer 1 interrupt enable */
#define BS_INTR1_TINT2_INT 0x00000020 /* timer 1 interrupt received */
#define BS_INTR1_TINT2_LM 0x00000007 /* timer 1 level mask */
#define BS_INTR1_TINT2_LEVEL(x) (x & BS_INTR1_TINT2_LM)
/* Vector Base Register (A read upon an interrupt reveals the source) */
#define BS_VBASE_SRC_TMR1 0x0
#define BS_VBASE_SRC_TMR2 0x1
#define BS_VBASE_SRC_WPE 0x2
#define BS_VBASE_SRC_PAL 0x3
#define BS_VBASE_SRC_EXT 0x4 /* external interrupt */
#define BS_VBASE_SRC_SPUR 0x7 /* spurious interrupt */
/*
* INTR2 - Write Post Control Register
* Processor Address Log Interrupt Register
* External Interrupt Register
* Vector Base
*/
#define BS_INTR2_WPINT_ICLR 0x08000000 /* WPINT interrupt clear */
#define BS_INTR2_WPINT_IEN 0x10000000 /* WPINT interrupt enable */
#define BS_INTR2_WPINT_INT 0x20000000 /* WPINT interrupt received */
#define BS_INTR2_WPINT_LM 0x07000000 /* WPINT level mask */
#define BS_INTR2_WPINT_LEVEL(x) ((x << 24) & BS_INTR2_WPINT_LM)
#define BS_INTR2_PALINT_ICLR 0x00080000 /* PALINT interrupt clear */
#define BS_INTR2_PALINT_IEN 0x00100000 /* PALINT interrupt enable */
#define BS_INTR2_PALINT_INT 0x00200000 /* PALINT interrupt received */
#define BS_INTR2_PALINT_PLTY 0x00800000 /* PALINT polarity */
#define BS_INTR2_PALINT_LM 0x00070000 /* PALINT level mask */
#define BS_INTR2_PALINT_LEVEL(x) ((x << 16) & BS_INTR2_PALINT_LM)
#define BS_INTR2_XINT_ICLR 0x00000800 /* XINT interrupt clear */
#define BS_INTR2_XINT_IEN 0x00001000 /* XINT interrupt enable */
#define BS_INTR2_XINT_INT 0x00002000 /* XINT interrupt received */
#define BS_INTR2_XINT_EL 0x00004000 /* XINT edge/level */
#define BS_INTR2_XINT_PLTY 0x00008000 /* XINT polarity */
#define BS_INTR2_XINT_LM 0x00000700 /* XINT level mask */
#define BS_INTR2_XINT_LEVEL(x) ((x << 24) & BS_INTR2_XINT_LM)
/* We lock off BusSwitch vectors at 0x40 */
#define BS_VECBASE 0x40
#define BS_NVEC 16
/* Bottom 4 bits of the vector returned during IACK cycle */
#define BS_TMR1IRQ 0x01 /* lowest */
#define BS_TMR2IRQ 0x02
#define BS_ABORTIRQ 0x03
/* Define the Abort vector */
#define BS_ABORTVEC (BS_VECBASE | BS_ABORTIRQ)
#endif /* BUSSWREG_H */
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