| /* |
| * Amiga Linux/m68k Ariadne Ethernet Driver |
| * |
| * © Copyright 1995 by Geert Uytterhoeven (geert@linux-m68k.org) |
| * Peter De Schrijver |
| * (Peter.DeSchrijver@linux.cc.kuleuven.ac.be) |
| * |
| * ---------------------------------------------------------------------------------- |
| * |
| * This program is based on |
| * |
| * lance.c: An AMD LANCE ethernet driver for linux. |
| * Written 1993-94 by Donald Becker. |
| * |
| * Am79C960: PCnet(tm)-ISA Single-Chip Ethernet Controller |
| * Advanced Micro Devices |
| * Publication #16907, Rev. B, Amendment/0, May 1994 |
| * |
| * MC68230: Parallel Interface/Timer (PI/T) |
| * Motorola Semiconductors, December, 1983 |
| * |
| * ---------------------------------------------------------------------------------- |
| * |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file COPYING in the main directory of the Linux |
| * distribution for more details. |
| * |
| * ---------------------------------------------------------------------------------- |
| * |
| * The Ariadne is a Zorro-II board made by Village Tronic. It contains: |
| * |
| * - an Am79C960 PCnet-ISA Single-Chip Ethernet Controller with both |
| * 10BASE-2 (thin coax) and 10BASE-T (UTP) connectors |
| * |
| * - an MC68230 Parallel Interface/Timer configured as 2 parallel ports |
| */ |
| |
| |
| /* |
| * Am79C960 PCnet-ISA |
| */ |
| |
| struct Am79C960 { |
| volatile u_short AddressPROM[8]; |
| /* IEEE Address PROM (Unused in the Ariadne) */ |
| volatile u_short RDP; /* Register Data Port */ |
| volatile u_short RAP; /* Register Address Port */ |
| volatile u_short Reset; /* Reset Chip on Read Access */ |
| volatile u_short IDP; /* ISACSR Data Port */ |
| }; |
| |
| |
| /* |
| * Am79C960 Control and Status Registers |
| * |
| * These values are already swap()ed!! |
| * |
| * Only registers marked with a `-' are intended for network software |
| * access |
| */ |
| |
| #define CSR0 0x0000 /* - PCnet-ISA Controller Status */ |
| #define CSR1 0x0100 /* - IADR[15:0] */ |
| #define CSR2 0x0200 /* - IADR[23:16] */ |
| #define CSR3 0x0300 /* - Interrupt Masks and Deferral Control */ |
| #define CSR4 0x0400 /* - Test and Features Control */ |
| #define CSR6 0x0600 /* RCV/XMT Descriptor Table Length */ |
| #define CSR8 0x0800 /* - Logical Address Filter, LADRF[15:0] */ |
| #define CSR9 0x0900 /* - Logical Address Filter, LADRF[31:16] */ |
| #define CSR10 0x0a00 /* - Logical Address Filter, LADRF[47:32] */ |
| #define CSR11 0x0b00 /* - Logical Address Filter, LADRF[63:48] */ |
| #define CSR12 0x0c00 /* - Physical Address Register, PADR[15:0] */ |
| #define CSR13 0x0d00 /* - Physical Address Register, PADR[31:16] */ |
| #define CSR14 0x0e00 /* - Physical Address Register, PADR[47:32] */ |
| #define CSR15 0x0f00 /* - Mode Register */ |
| #define CSR16 0x1000 /* Initialization Block Address Lower */ |
| #define CSR17 0x1100 /* Initialization Block Address Upper */ |
| #define CSR18 0x1200 /* Current Receive Buffer Address */ |
| #define CSR19 0x1300 /* Current Receive Buffer Address */ |
| #define CSR20 0x1400 /* Current Transmit Buffer Address */ |
| #define CSR21 0x1500 /* Current Transmit Buffer Address */ |
| #define CSR22 0x1600 /* Next Receive Buffer Address */ |
| #define CSR23 0x1700 /* Next Receive Buffer Address */ |
| #define CSR24 0x1800 /* - Base Address of Receive Ring */ |
| #define CSR25 0x1900 /* - Base Address of Receive Ring */ |
| #define CSR26 0x1a00 /* Next Receive Descriptor Address */ |
| #define CSR27 0x1b00 /* Next Receive Descriptor Address */ |
| #define CSR28 0x1c00 /* Current Receive Descriptor Address */ |
| #define CSR29 0x1d00 /* Current Receive Descriptor Address */ |
| #define CSR30 0x1e00 /* - Base Address of Transmit Ring */ |
| #define CSR31 0x1f00 /* - Base Address of transmit Ring */ |
| #define CSR32 0x2000 /* Next Transmit Descriptor Address */ |
| #define CSR33 0x2100 /* Next Transmit Descriptor Address */ |
| #define CSR34 0x2200 /* Current Transmit Descriptor Address */ |
| #define CSR35 0x2300 /* Current Transmit Descriptor Address */ |
| #define CSR36 0x2400 /* Next Next Receive Descriptor Address */ |
| #define CSR37 0x2500 /* Next Next Receive Descriptor Address */ |
| #define CSR38 0x2600 /* Next Next Transmit Descriptor Address */ |
| #define CSR39 0x2700 /* Next Next Transmit Descriptor Address */ |
| #define CSR40 0x2800 /* Current Receive Status and Byte Count */ |
| #define CSR41 0x2900 /* Current Receive Status and Byte Count */ |
| #define CSR42 0x2a00 /* Current Transmit Status and Byte Count */ |
| #define CSR43 0x2b00 /* Current Transmit Status and Byte Count */ |
| #define CSR44 0x2c00 /* Next Receive Status and Byte Count */ |
| #define CSR45 0x2d00 /* Next Receive Status and Byte Count */ |
| #define CSR46 0x2e00 /* Poll Time Counter */ |
| #define CSR47 0x2f00 /* Polling Interval */ |
| #define CSR48 0x3000 /* Temporary Storage */ |
| #define CSR49 0x3100 /* Temporary Storage */ |
| #define CSR50 0x3200 /* Temporary Storage */ |
| #define CSR51 0x3300 /* Temporary Storage */ |
| #define CSR52 0x3400 /* Temporary Storage */ |
| #define CSR53 0x3500 /* Temporary Storage */ |
| #define CSR54 0x3600 /* Temporary Storage */ |
| #define CSR55 0x3700 /* Temporary Storage */ |
| #define CSR56 0x3800 /* Temporary Storage */ |
| #define CSR57 0x3900 /* Temporary Storage */ |
| #define CSR58 0x3a00 /* Temporary Storage */ |
| #define CSR59 0x3b00 /* Temporary Storage */ |
| #define CSR60 0x3c00 /* Previous Transmit Descriptor Address */ |
| #define CSR61 0x3d00 /* Previous Transmit Descriptor Address */ |
| #define CSR62 0x3e00 /* Previous Transmit Status and Byte Count */ |
| #define CSR63 0x3f00 /* Previous Transmit Status and Byte Count */ |
| #define CSR64 0x4000 /* Next Transmit Buffer Address */ |
| #define CSR65 0x4100 /* Next Transmit Buffer Address */ |
| #define CSR66 0x4200 /* Next Transmit Status and Byte Count */ |
| #define CSR67 0x4300 /* Next Transmit Status and Byte Count */ |
| #define CSR68 0x4400 /* Transmit Status Temporary Storage */ |
| #define CSR69 0x4500 /* Transmit Status Temporary Storage */ |
| #define CSR70 0x4600 /* Temporary Storage */ |
| #define CSR71 0x4700 /* Temporary Storage */ |
| #define CSR72 0x4800 /* Receive Ring Counter */ |
| #define CSR74 0x4a00 /* Transmit Ring Counter */ |
| #define CSR76 0x4c00 /* - Receive Ring Length */ |
| #define CSR78 0x4e00 /* - Transmit Ring Length */ |
| #define CSR80 0x5000 /* - Burst and FIFO Threshold Control */ |
| #define CSR82 0x5200 /* - Bus Activity Timer */ |
| #define CSR84 0x5400 /* DMA Address */ |
| #define CSR85 0x5500 /* DMA Address */ |
| #define CSR86 0x5600 /* Buffer Byte Counter */ |
| #define CSR88 0x5800 /* - Chip ID */ |
| #define CSR89 0x5900 /* - Chip ID */ |
| #define CSR92 0x5c00 /* Ring Length Conversion */ |
| #define CSR94 0x5e00 /* Transmit Time Domain Reflectometry Count */ |
| #define CSR96 0x6000 /* Bus Interface Scratch Register 0 */ |
| #define CSR97 0x6100 /* Bus Interface Scratch Register 0 */ |
| #define CSR98 0x6200 /* Bus Interface Scratch Register 1 */ |
| #define CSR99 0x6300 /* Bus Interface Scratch Register 1 */ |
| #define CSR104 0x6800 /* SWAP */ |
| #define CSR105 0x6900 /* SWAP */ |
| #define CSR108 0x6c00 /* Buffer Management Scratch */ |
| #define CSR109 0x6d00 /* Buffer Management Scratch */ |
| #define CSR112 0x7000 /* - Missed Frame Count */ |
| #define CSR114 0x7200 /* - Receive Collision Count */ |
| #define CSR124 0x7c00 /* - Buffer Management Unit Test */ |
| |
| |
| /* |
| * Am79C960 ISA Control and Status Registers |
| * |
| * These values are already swap()ed!! |
| */ |
| |
| #define ISACSR0 0x0000 /* Master Mode Read Active */ |
| #define ISACSR1 0x0100 /* Master Mode Write Active */ |
| #define ISACSR2 0x0200 /* Miscellaneous Configuration */ |
| #define ISACSR4 0x0400 /* LED0 Status (Link Integrity) */ |
| #define ISACSR5 0x0500 /* LED1 Status */ |
| #define ISACSR6 0x0600 /* LED2 Status */ |
| #define ISACSR7 0x0700 /* LED3 Status */ |
| |
| |
| /* |
| * Bit definitions for CSR0 (PCnet-ISA Controller Status) |
| * |
| * These values are already swap()ed!! |
| */ |
| |
| #define ERR 0x0080 /* Error */ |
| #define BABL 0x0040 /* Babble: Transmitted too many bits */ |
| #define CERR 0x0020 /* No Heartbeat (10BASE-T) */ |
| #define MISS 0x0010 /* Missed Frame */ |
| #define MERR 0x0008 /* Memory Error */ |
| #define RINT 0x0004 /* Receive Interrupt */ |
| #define TINT 0x0002 /* Transmit Interrupt */ |
| #define IDON 0x0001 /* Initialization Done */ |
| #define INTR 0x8000 /* Interrupt Flag */ |
| #define INEA 0x4000 /* Interrupt Enable */ |
| #define RXON 0x2000 /* Receive On */ |
| #define TXON 0x1000 /* Transmit On */ |
| #define TDMD 0x0800 /* Transmit Demand */ |
| #define STOP 0x0400 /* Stop */ |
| #define STRT 0x0200 /* Start */ |
| #define INIT 0x0100 /* Initialize */ |
| |
| |
| /* |
| * Bit definitions for CSR3 (Interrupt Masks and Deferral Control) |
| * |
| * These values are already swap()ed!! |
| */ |
| |
| #define BABLM 0x0040 /* Babble Mask */ |
| #define MISSM 0x0010 /* Missed Frame Mask */ |
| #define MERRM 0x0008 /* Memory Error Mask */ |
| #define RINTM 0x0004 /* Receive Interrupt Mask */ |
| #define TINTM 0x0002 /* Transmit Interrupt Mask */ |
| #define IDONM 0x0001 /* Initialization Done Mask */ |
| #define DXMT2PD 0x1000 /* Disable Transmit Two Part Deferral */ |
| #define EMBA 0x0800 /* Enable Modified Back-off Algorithm */ |
| |
| |
| /* |
| * Bit definitions for CSR4 (Test and Features Control) |
| * |
| * These values are already swap()ed!! |
| */ |
| |
| #define ENTST 0x0080 /* Enable Test Mode */ |
| #define DMAPLUS 0x0040 /* Disable Burst Transaction Counter */ |
| #define TIMER 0x0020 /* Timer Enable Register */ |
| #define DPOLL 0x0010 /* Disable Transmit Polling */ |
| #define APAD_XMT 0x0008 /* Auto Pad Transmit */ |
| #define ASTRP_RCV 0x0004 /* Auto Pad Stripping */ |
| #define MFCO 0x0002 /* Missed Frame Counter Overflow Interrupt */ |
| #define MFCOM 0x0001 /* Missed Frame Counter Overflow Mask */ |
| #define RCVCCO 0x2000 /* Receive Collision Counter Overflow Interrupt */ |
| #define RCVCCOM 0x1000 /* Receive Collision Counter Overflow Mask */ |
| #define TXSTRT 0x0800 /* Transmit Start Status */ |
| #define TXSTRTM 0x0400 /* Transmit Start Mask */ |
| #define JAB 0x0200 /* Jabber Error */ |
| #define JABM 0x0100 /* Jabber Error Mask */ |
| |
| |
| /* |
| * Bit definitions for CSR15 (Mode Register) |
| * |
| * These values are already swap()ed!! |
| */ |
| |
| #define PROM 0x0080 /* Promiscuous Mode */ |
| #define DRCVBC 0x0040 /* Disable Receive Broadcast */ |
| #define DRCVPA 0x0020 /* Disable Receive Physical Address */ |
| #define DLNKTST 0x0010 /* Disable Link Status */ |
| #define DAPC 0x0008 /* Disable Automatic Polarity Correction */ |
| #define MENDECL 0x0004 /* MENDEC Loopback Mode */ |
| #define LRTTSEL 0x0002 /* Low Receive Treshold/Transmit Mode Select */ |
| #define PORTSEL1 0x0001 /* Port Select Bits */ |
| #define PORTSEL2 0x8000 /* Port Select Bits */ |
| #define INTL 0x4000 /* Internal Loopback */ |
| #define DRTY 0x2000 /* Disable Retry */ |
| #define FCOLL 0x1000 /* Force Collision */ |
| #define DXMTFCS 0x0800 /* Disable Transmit CRC */ |
| #define LOOP 0x0400 /* Loopback Enable */ |
| #define DTX 0x0200 /* Disable Transmitter */ |
| #define DRX 0x0100 /* Disable Receiver */ |
| |
| |
| /* |
| * Bit definitions for ISACSR2 (Miscellaneous Configuration) |
| * |
| * These values are already swap()ed!! |
| */ |
| |
| #define ASEL 0x0200 /* Media Interface Port Auto Select */ |
| |
| |
| /* |
| * Bit definitions for ISACSR5-7 (LED1-3 Status) |
| * |
| * These values are already swap()ed!! |
| */ |
| |
| #define LEDOUT 0x0080 /* Current LED Status */ |
| #define PSE 0x8000 /* Pulse Stretcher Enable */ |
| #define XMTE 0x1000 /* Enable Transmit Status Signal */ |
| #define RVPOLE 0x0800 /* Enable Receive Polarity Signal */ |
| #define RCVE 0x0400 /* Enable Receive Status Signal */ |
| #define JABE 0x0200 /* Enable Jabber Signal */ |
| #define COLE 0x0100 /* Enable Collision Signal */ |
| |
| |
| /* |
| * Receive Descriptor Ring Entry |
| */ |
| |
| struct RDRE { |
| volatile u_short RMD0; /* LADR[15:0] */ |
| volatile u_short RMD1; /* HADR[23:16] | Receive Flags */ |
| volatile u_short RMD2; /* Buffer Byte Count (two's complement) */ |
| volatile u_short RMD3; /* Message Byte Count */ |
| }; |
| |
| |
| /* |
| * Transmit Descriptor Ring Entry |
| */ |
| |
| struct TDRE { |
| volatile u_short TMD0; /* LADR[15:0] */ |
| volatile u_short TMD1; /* HADR[23:16] | Transmit Flags */ |
| volatile u_short TMD2; /* Buffer Byte Count (two's complement) */ |
| volatile u_short TMD3; /* Error Flags */ |
| }; |
| |
| |
| /* |
| * Receive Flags |
| */ |
| |
| #define RF_OWN 0x0080 /* PCnet-ISA controller owns the descriptor */ |
| #define RF_ERR 0x0040 /* Error */ |
| #define RF_FRAM 0x0020 /* Framing Error */ |
| #define RF_OFLO 0x0010 /* Overflow Error */ |
| #define RF_CRC 0x0008 /* CRC Error */ |
| #define RF_BUFF 0x0004 /* Buffer Error */ |
| #define RF_STP 0x0002 /* Start of Packet */ |
| #define RF_ENP 0x0001 /* End of Packet */ |
| |
| |
| /* |
| * Transmit Flags |
| */ |
| |
| #define TF_OWN 0x0080 /* PCnet-ISA controller owns the descriptor */ |
| #define TF_ERR 0x0040 /* Error */ |
| #define TF_ADD_FCS 0x0020 /* Controls FCS Generation */ |
| #define TF_MORE 0x0010 /* More than one retry needed */ |
| #define TF_ONE 0x0008 /* One retry needed */ |
| #define TF_DEF 0x0004 /* Deferred */ |
| #define TF_STP 0x0002 /* Start of Packet */ |
| #define TF_ENP 0x0001 /* End of Packet */ |
| |
| |
| /* |
| * Error Flags |
| */ |
| |
| #define EF_BUFF 0x0080 /* Buffer Error */ |
| #define EF_UFLO 0x0040 /* Underflow Error */ |
| #define EF_LCOL 0x0010 /* Late Collision */ |
| #define EF_LCAR 0x0008 /* Loss of Carrier */ |
| #define EF_RTRY 0x0004 /* Retry Error */ |
| #define EF_TDR 0xff03 /* Time Domain Reflectometry */ |
| |
| |
| |
| /* |
| * MC68230 Parallel Interface/Timer |
| */ |
| |
| struct MC68230 { |
| volatile u_char PGCR; /* Port General Control Register */ |
| u_char Pad1[1]; |
| volatile u_char PSRR; /* Port Service Request Register */ |
| u_char Pad2[1]; |
| volatile u_char PADDR; /* Port A Data Direction Register */ |
| u_char Pad3[1]; |
| volatile u_char PBDDR; /* Port B Data Direction Register */ |
| u_char Pad4[1]; |
| volatile u_char PCDDR; /* Port C Data Direction Register */ |
| u_char Pad5[1]; |
| volatile u_char PIVR; /* Port Interrupt Vector Register */ |
| u_char Pad6[1]; |
| volatile u_char PACR; /* Port A Control Register */ |
| u_char Pad7[1]; |
| volatile u_char PBCR; /* Port B Control Register */ |
| u_char Pad8[1]; |
| volatile u_char PADR; /* Port A Data Register */ |
| u_char Pad9[1]; |
| volatile u_char PBDR; /* Port B Data Register */ |
| u_char Pad10[1]; |
| volatile u_char PAAR; /* Port A Alternate Register */ |
| u_char Pad11[1]; |
| volatile u_char PBAR; /* Port B Alternate Register */ |
| u_char Pad12[1]; |
| volatile u_char PCDR; /* Port C Data Register */ |
| u_char Pad13[1]; |
| volatile u_char PSR; /* Port Status Register */ |
| u_char Pad14[5]; |
| volatile u_char TCR; /* Timer Control Register */ |
| u_char Pad15[1]; |
| volatile u_char TIVR; /* Timer Interrupt Vector Register */ |
| u_char Pad16[3]; |
| volatile u_char CPRH; /* Counter Preload Register (High) */ |
| u_char Pad17[1]; |
| volatile u_char CPRM; /* Counter Preload Register (Mid) */ |
| u_char Pad18[1]; |
| volatile u_char CPRL; /* Counter Preload Register (Low) */ |
| u_char Pad19[3]; |
| volatile u_char CNTRH; /* Count Register (High) */ |
| u_char Pad20[1]; |
| volatile u_char CNTRM; /* Count Register (Mid) */ |
| u_char Pad21[1]; |
| volatile u_char CNTRL; /* Count Register (Low) */ |
| u_char Pad22[1]; |
| volatile u_char TSR; /* Timer Status Register */ |
| u_char Pad23[11]; |
| }; |
| |
| |
| /* |
| * Ariadne Expansion Board Structure |
| */ |
| |
| #define ARIADNE_LANCE 0x360 |
| |
| #define ARIADNE_PIT 0x1000 |
| |
| #define ARIADNE_BOOTPROM 0x4000 /* I guess it's here :-) */ |
| #define ARIADNE_BOOTPROM_SIZE 0x4000 |
| |
| #define ARIADNE_RAM 0x8000 /* Always access WORDs!! */ |
| #define ARIADNE_RAM_SIZE 0x8000 |
| |
