403 lines
11 KiB
C
403 lines
11 KiB
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2001 Patton Electronics Company
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* Copyright (C) 2002 Momentum Computer
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*
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* Copyright 2000 MontaVista Software Inc.
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* Author: MontaVista Software, Inc.
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* stevel@mvista.com or support@mvista.com
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*
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* This program is free software; you can distribute it and/or modify it
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* under the terms of the GNU General Public License (Version 2) as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
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*
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* Ethernet driver definitions for the MIPS GT96100 Advanced
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* Communication Controller.
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*
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* Modified for the Marvellous GT64240 Retarded Communication Controller.
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*/
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#ifndef _GT64240ETH_H
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#define _GT64240ETH_H
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#include <asm/gt64240.h>
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#define ETHERNET_PORTS_DIFFERENCE_OFFSETS 0x400
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/* Translate those weanie names from Galileo/VxWorks header files: */
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#define GT64240_MRR MAIN_ROUTING_REGISTER
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#define GT64240_CIU_ARBITER_CONFIG COMM_UNIT_ARBITER_CONFIGURATION_REGISTER
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#define GT64240_CIU_ARBITER_CONTROL COMM_UNIT_ARBITER_CONTROL
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#define GT64240_MAIN_LOW_CAUSE LOW_INTERRUPT_CAUSE_REGISTER
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#define GT64240_MAIN_HIGH_CAUSE HIGH_INTERRUPT_CAUSE_REGISTER
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#define GT64240_CPU_LOW_MASK CPU_INTERRUPT_MASK_REGISTER_LOW
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#define GT64240_CPU_HIGH_MASK CPU_INTERRUPT_MASK_REGISTER_HIGH
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#define GT64240_CPU_SELECT_CAUSE CPU_SELECT_CAUSE_REGISTER
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#define GT64240_ETH_PHY_ADDR_REG ETHERNET_PHY_ADDRESS_REGISTER
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#define GT64240_ETH_PORT_CONFIG ETHERNET0_PORT_CONFIGURATION_REGISTER
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#define GT64240_ETH_PORT_CONFIG_EXT ETHERNET0_PORT_CONFIGURATION_EXTEND_REGISTER
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#define GT64240_ETH_PORT_COMMAND ETHERNET0_PORT_COMMAND_REGISTER
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#define GT64240_ETH_PORT_STATUS ETHERNET0_PORT_STATUS_REGISTER
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#define GT64240_ETH_IO_SIZE ETHERNET_PORTS_DIFFERENCE_OFFSETS
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#define GT64240_ETH_SMI_REG ETHERNET_SMI_REGISTER
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#define GT64240_ETH_MIB_COUNT_BASE ETHERNET0_MIB_COUNTER_BASE
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#define GT64240_ETH_SDMA_CONFIG ETHERNET0_SDMA_CONFIGURATION_REGISTER
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#define GT64240_ETH_SDMA_COMM ETHERNET0_SDMA_COMMAND_REGISTER
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#define GT64240_ETH_INT_MASK ETHERNET0_INTERRUPT_MASK_REGISTER
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#define GT64240_ETH_INT_CAUSE ETHERNET0_INTERRUPT_CAUSE_REGISTER
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#define GT64240_ETH_CURR_TX_DESC_PTR0 ETHERNET0_CURRENT_TX_DESCRIPTOR_POINTER0
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#define GT64240_ETH_CURR_TX_DESC_PTR1 ETHERNET0_CURRENT_TX_DESCRIPTOR_POINTER1
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#define GT64240_ETH_1ST_RX_DESC_PTR0 ETHERNET0_FIRST_RX_DESCRIPTOR_POINTER0
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#define GT64240_ETH_CURR_RX_DESC_PTR0 ETHERNET0_CURRENT_RX_DESCRIPTOR_POINTER0
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#define GT64240_ETH_HASH_TBL_PTR ETHERNET0_HASH_TABLE_POINTER_REGISTER
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/* Turn on NAPI by default */
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#define GT64240_NAPI 1
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/* Some 64240 settings that SHOULD eventually be setup in PROM monitor: */
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/* (Board-specific to the DSL3224 Rev A board ONLY!) */
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#define D3224_MPP_CTRL0_SETTING 0x66669900
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#define D3224_MPP_CTRL1_SETTING 0x00000000
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#define D3224_MPP_CTRL2_SETTING 0x00887700
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#define D3224_MPP_CTRL3_SETTING 0x00000044
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#define D3224_GPP_IO_CTRL_SETTING 0x0000e800
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#define D3224_GPP_LEVEL_CTRL_SETTING 0xf001f703
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#define D3224_GPP_VALUE_SETTING 0x00000000
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/* Keep the ring sizes a power of two for efficiency. */
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//-#define TX_RING_SIZE 16
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#define TX_RING_SIZE 64 /* TESTING !!! */
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#define RX_RING_SIZE 32
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#define PKT_BUF_SZ 1536 /* Size of each temporary Rx buffer. */
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#define RX_HASH_TABLE_SIZE 16384
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#define HASH_HOP_NUMBER 12
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#define NUM_INTERFACES 3
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#define GT64240ETH_TX_TIMEOUT HZ/4
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#define MIPS_GT64240_BASE 0xf4000000
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#define GT64240_ETH0_BASE (MIPS_GT64240_BASE + GT64240_ETH_PORT_CONFIG)
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#define GT64240_ETH1_BASE (GT64240_ETH0_BASE + GT64240_ETH_IO_SIZE)
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#define GT64240_ETH2_BASE (GT64240_ETH1_BASE + GT64240_ETH_IO_SIZE)
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#if defined(CONFIG_MIPS_DSL3224)
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#define GT64240_ETHER0_IRQ 4
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#define GT64240_ETHER1_IRQ 4
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#else
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#define GT64240_ETHER0_IRQ -1
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#define GT64240_ETHER1_IRQ -1
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#endif
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#define REV_GT64240 0x1
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#define REV_GT64240A 0x10
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#define GT64240ETH_READ(gp, offset) \
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GT_READ((gp)->port_offset + (offset))
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#define GT64240ETH_WRITE(gp, offset, data) \
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GT_WRITE((gp)->port_offset + (offset), (data))
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#define GT64240ETH_SETBIT(gp, offset, bits) \
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GT64240ETH_WRITE((gp), (offset), \
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GT64240ETH_READ((gp), (offset)) | (bits))
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#define GT64240ETH_CLRBIT(gp, offset, bits) \
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GT64240ETH_WRITE((gp), (offset), \
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GT64240ETH_READ((gp), (offset)) & ~(bits))
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#define GT64240_READ(ofs) GT_READ(ofs)
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#define GT64240_WRITE(ofs, data) GT_WRITE((ofs), (data))
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/* Bit definitions of the SMI Reg */
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enum {
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smirDataMask = 0xffff,
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smirPhyAdMask = 0x1f << 16,
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smirPhyAdBit = 16,
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smirRegAdMask = 0x1f << 21,
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smirRegAdBit = 21,
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smirOpCode = 1 << 26,
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smirReadValid = 1 << 27,
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smirBusy = 1 << 28
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};
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/* Bit definitions of the Port Config Reg */
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enum pcr_bits {
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pcrPM = 1 << 0,
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pcrRBM = 1 << 1,
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pcrPBF = 1 << 2,
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pcrEN = 1 << 7,
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pcrLPBKMask = 0x3 << 8,
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pcrLPBKBit = 1 << 8,
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pcrFC = 1 << 10,
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pcrHS = 1 << 12,
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pcrHM = 1 << 13,
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pcrHDM = 1 << 14,
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pcrHD = 1 << 15,
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pcrISLMask = 0x7 << 28,
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pcrISLBit = 28,
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pcrACCS = 1 << 31
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};
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/* Bit definitions of the Port Config Extend Reg */
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enum pcxr_bits {
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pcxrIGMP = 1,
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pcxrSPAN = 2,
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pcxrPAR = 4,
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pcxrPRIOtxMask = 0x7 << 3,
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pcxrPRIOtxBit = 3,
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pcxrPRIOrxMask = 0x3 << 6,
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pcxrPRIOrxBit = 6,
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pcxrPRIOrxOverride = 1 << 8,
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pcxrDPLXen = 1 << 9,
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pcxrFCTLen = 1 << 10,
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pcxrFLP = 1 << 11,
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pcxrFCTL = 1 << 12,
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pcxrMFLMask = 0x3 << 14,
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pcxrMFLBit = 14,
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pcxrMIBclrMode = 1 << 16,
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pcxrSpeed = 1 << 18,
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pcxrSpeeden = 1 << 19,
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pcxrRMIIen = 1 << 20,
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pcxrDSCPen = 1 << 21
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};
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/* Bit definitions of the Port Command Reg */
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enum pcmr_bits {
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pcmrFJ = 1 << 15
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};
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/* Bit definitions of the Port Status Reg */
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enum psr_bits {
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psrSpeed = 1,
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psrDuplex = 2,
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psrFctl = 4,
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psrLink = 8,
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psrPause = 1 << 4,
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psrTxLow = 1 << 5,
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psrTxHigh = 1 << 6,
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psrTxInProg = 1 << 7
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};
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/* Bit definitions of the SDMA Config Reg */
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enum sdcr_bits {
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sdcrRCMask = 0xf << 2,
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sdcrRCBit = 2,
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sdcrBLMR = 1 << 6,
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sdcrBLMT = 1 << 7,
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sdcrPOVR = 1 << 8,
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sdcrRIFB = 1 << 9,
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sdcrBSZMask = 0x3 << 12,
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sdcrBSZBit = 12
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};
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/* Bit definitions of the SDMA Command Reg */
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enum sdcmr_bits {
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sdcmrERD = 1 << 7,
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sdcmrAR = 1 << 15,
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sdcmrSTDH = 1 << 16,
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sdcmrSTDL = 1 << 17,
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sdcmrTXDH = 1 << 23,
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sdcmrTXDL = 1 << 24,
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sdcmrAT = 1 << 31
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};
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/* Bit definitions of the Interrupt Cause Reg */
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enum icr_bits {
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icrRxBuffer = 1,
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icrTxBufferHigh = 1 << 2,
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icrTxBufferLow = 1 << 3,
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icrTxEndHigh = 1 << 6,
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icrTxEndLow = 1 << 7,
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icrRxError = 1 << 8,
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icrTxErrorHigh = 1 << 10,
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icrTxErrorLow = 1 << 11,
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icrRxOVR = 1 << 12,
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icrTxUdr = 1 << 13,
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icrRxBufferQ0 = 1 << 16,
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icrRxBufferQ1 = 1 << 17,
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icrRxBufferQ2 = 1 << 18,
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icrRxBufferQ3 = 1 << 19,
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icrRxErrorQ0 = 1 << 20,
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icrRxErrorQ1 = 1 << 21,
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icrRxErrorQ2 = 1 << 22,
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icrRxErrorQ3 = 1 << 23,
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icrMIIPhySTC = 1 << 28,
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icrSMIdone = 1 << 29,
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icrEtherIntSum = 1 << 31
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};
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/* The Rx and Tx descriptor lists. */
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#ifdef __LITTLE_ENDIAN
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typedef struct {
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u32 cmdstat;
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u16 reserved; //-prk21aug01 u32 reserved:16;
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u16 byte_cnt; //-prk21aug01 u32 byte_cnt:16;
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u32 buff_ptr;
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u32 next;
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} gt64240_td_t;
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typedef struct {
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u32 cmdstat;
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u16 byte_cnt; //-prk21aug01 u32 byte_cnt:16;
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u16 buff_sz; //-prk21aug01 u32 buff_sz:16;
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u32 buff_ptr;
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u32 next;
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} gt64240_rd_t;
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#elif defined(__BIG_ENDIAN)
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typedef struct {
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u16 byte_cnt; //-prk21aug01 u32 byte_cnt:16;
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u16 reserved; //-prk21aug01 u32 reserved:16;
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u32 cmdstat;
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u32 next;
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u32 buff_ptr;
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} gt64240_td_t;
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typedef struct {
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u16 buff_sz; //-prk21aug01 u32 buff_sz:16;
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u16 byte_cnt; //-prk21aug01 u32 byte_cnt:16;
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u32 cmdstat;
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u32 next;
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u32 buff_ptr;
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} gt64240_rd_t;
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#else
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#error Either __BIG_ENDIAN or __LITTLE_ENDIAN must be defined!
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#endif
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/* Values for the Tx command-status descriptor entry. */
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enum td_cmdstat {
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txOwn = 1 << 31,
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txAutoMode = 1 << 30,
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txEI = 1 << 23,
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txGenCRC = 1 << 22,
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txPad = 1 << 18,
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txFirst = 1 << 17,
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txLast = 1 << 16,
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txErrorSummary = 1 << 15,
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txReTxCntMask = 0x0f << 10,
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txReTxCntBit = 10,
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txCollision = 1 << 9,
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txReTxLimit = 1 << 8,
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txUnderrun = 1 << 6,
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txLateCollision = 1 << 5
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};
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/* Values for the Rx command-status descriptor entry. */
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enum rd_cmdstat {
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rxOwn = 1 << 31,
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rxAutoMode = 1 << 30,
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rxEI = 1 << 23,
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rxFirst = 1 << 17,
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rxLast = 1 << 16,
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rxErrorSummary = 1 << 15,
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rxIGMP = 1 << 14,
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rxHashExpired = 1 << 13,
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rxMissedFrame = 1 << 12,
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rxFrameType = 1 << 11,
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rxShortFrame = 1 << 8,
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rxMaxFrameLen = 1 << 7,
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rxOverrun = 1 << 6,
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rxCollision = 1 << 4,
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rxCRCError = 1
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};
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/* Bit fields of a Hash Table Entry */
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enum hash_table_entry {
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hteValid = 1,
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hteSkip = 2,
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hteRD = 4
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};
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// The MIB counters
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typedef struct {
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u32 byteReceived;
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u32 byteSent;
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u32 framesReceived;
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u32 framesSent;
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u32 totalByteReceived;
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u32 totalFramesReceived;
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u32 broadcastFramesReceived;
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u32 multicastFramesReceived;
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u32 cRCError;
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u32 oversizeFrames;
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u32 fragments;
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u32 jabber;
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u32 collision;
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u32 lateCollision;
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u32 frames64;
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u32 frames65_127;
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u32 frames128_255;
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u32 frames256_511;
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u32 frames512_1023;
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u32 frames1024_MaxSize;
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u32 macRxError;
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u32 droppedFrames;
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u32 outMulticastFrames;
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u32 outBroadcastFrames;
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u32 undersizeFrames;
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} mib_counters_t;
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struct gt64240_private {
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gt64240_rd_t *rx_ring;
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gt64240_td_t *tx_ring;
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// The Rx and Tx rings must be 16-byte aligned
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dma_addr_t rx_ring_dma;
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dma_addr_t tx_ring_dma;
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char *hash_table;
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// The Hash Table must be 8-byte aligned
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dma_addr_t hash_table_dma;
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int hash_mode;
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// The Rx buffers must be 8-byte aligned
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char *rx_buff;
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dma_addr_t rx_buff_dma;
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// Tx buffers (tx_skbuff[i]->data) with less than 8 bytes
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// of payload must be 8-byte aligned
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struct sk_buff *tx_skbuff[TX_RING_SIZE];
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int rx_next_out; /* The next free ring entry to receive */
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int tx_next_in; /* The next free ring entry to send */
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int tx_next_out; /* The last ring entry the ISR processed */
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int tx_count; /* current # of pkts waiting to be sent in Tx ring */
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int intr_work_done; /* number of Rx and Tx pkts processed in the isr */
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int tx_full; /* Tx ring is full */
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mib_counters_t mib;
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struct net_device_stats stats;
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int io_size;
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int port_num; // 0 or 1
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u32 port_offset;
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int phy_addr; // PHY address
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u32 last_psr; // last value of the port status register
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int options; /* User-settable misc. driver options. */
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int drv_flags;
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spinlock_t lock; /* Serialise access to device */
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struct mii_if_info mii_if;
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u32 msg_enable;
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};
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#endif /* _GT64240ETH_H */
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