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1683440595
PortOffset was an unsigned long, but used as an pointer to io memory. Sometimes it was not properly cast before use, which caused many warning by sparse. By updating its type to void __iomem *, and reflecting the changes where it is needed, this removes most of those warnings. Signed-off-by: Guillaume Clement <gclement@baobob.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
405 lines
10 KiB
C
405 lines
10 KiB
C
/*
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* Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License 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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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* File: srom.c
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*
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* Purpose:Implement functions to access eeprom
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*
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* Author: Jerry Chen
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*
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* Date: Jan 29, 2003
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*
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* Functions:
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* SROMbyReadEmbedded - Embedded read eeprom via MAC
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* SROMbWriteEmbedded - Embedded write eeprom via MAC
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* SROMvRegBitsOn - Set Bits On in eeprom
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* SROMvRegBitsOff - Clear Bits Off in eeprom
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* SROMbIsRegBitsOn - Test if Bits On in eeprom
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* SROMbIsRegBitsOff - Test if Bits Off in eeprom
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* SROMvReadAllContents - Read all contents in eeprom
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* SROMvWriteAllContents - Write all contents in eeprom
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* SROMvReadEtherAddress - Read Ethernet Address in eeprom
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* SROMvWriteEtherAddress - Write Ethernet Address in eeprom
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* SROMvReadSubSysVenId - Read Sub_VID and Sub_SysId in eeprom
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* SROMbAutoLoad - Auto Load eeprom to MAC register
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*
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* Revision History:
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*
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*/
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#include "upc.h"
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#include "tmacro.h"
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#include "tether.h"
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#include "mac.h"
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#include "srom.h"
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/*--------------------- Static Definitions -------------------------*/
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/*--------------------- Static Classes ----------------------------*/
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/*--------------------- Static Variables --------------------------*/
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/*--------------------- Static Functions --------------------------*/
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/*--------------------- Export Variables --------------------------*/
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/*--------------------- Export Functions --------------------------*/
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/*
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* Description: Read a byte from EEPROM, by MAC I2C
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*
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* Parameters:
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* In:
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* dwIoBase - I/O base address
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* byContntOffset - address of EEPROM
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* Out:
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* none
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*
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* Return Value: data read
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*
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*/
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unsigned char SROMbyReadEmbedded(void __iomem *dwIoBase, unsigned char byContntOffset)
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{
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unsigned short wDelay, wNoACK;
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unsigned char byWait;
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unsigned char byData;
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unsigned char byOrg;
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byData = 0xFF;
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VNSvInPortB(dwIoBase + MAC_REG_I2MCFG, &byOrg);
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/* turn off hardware retry for getting NACK */
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VNSvOutPortB(dwIoBase + MAC_REG_I2MCFG, (byOrg & (~I2MCFG_NORETRY)));
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for (wNoACK = 0; wNoACK < W_MAX_I2CRETRY; wNoACK++) {
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VNSvOutPortB(dwIoBase + MAC_REG_I2MTGID, EEP_I2C_DEV_ID);
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VNSvOutPortB(dwIoBase + MAC_REG_I2MTGAD, byContntOffset);
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/* issue read command */
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VNSvOutPortB(dwIoBase + MAC_REG_I2MCSR, I2MCSR_EEMR);
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/* wait DONE be set */
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for (wDelay = 0; wDelay < W_MAX_TIMEOUT; wDelay++) {
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VNSvInPortB(dwIoBase + MAC_REG_I2MCSR, &byWait);
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if (byWait & (I2MCSR_DONE | I2MCSR_NACK))
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break;
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PCAvDelayByIO(CB_DELAY_LOOP_WAIT);
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}
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if ((wDelay < W_MAX_TIMEOUT) &&
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(!(byWait & I2MCSR_NACK))) {
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break;
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}
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}
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VNSvInPortB(dwIoBase + MAC_REG_I2MDIPT, &byData);
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VNSvOutPortB(dwIoBase + MAC_REG_I2MCFG, byOrg);
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return byData;
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}
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/*
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* Description: Write a byte to EEPROM, by MAC I2C
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*
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* Parameters:
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* In:
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* dwIoBase - I/O base address
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* byContntOffset - address of EEPROM
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* wData - data to write
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* Out:
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* none
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*
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* Return Value: true if succeeded; false if failed.
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*
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*/
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bool SROMbWriteEmbedded(void __iomem *dwIoBase, unsigned char byContntOffset, unsigned char byData)
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{
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unsigned short wDelay, wNoACK;
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unsigned char byWait;
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unsigned char byOrg;
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VNSvInPortB(dwIoBase + MAC_REG_I2MCFG, &byOrg);
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/* turn off hardware retry for getting NACK */
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VNSvOutPortB(dwIoBase + MAC_REG_I2MCFG, (byOrg & (~I2MCFG_NORETRY)));
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for (wNoACK = 0; wNoACK < W_MAX_I2CRETRY; wNoACK++) {
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VNSvOutPortB(dwIoBase + MAC_REG_I2MTGID, EEP_I2C_DEV_ID);
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VNSvOutPortB(dwIoBase + MAC_REG_I2MTGAD, byContntOffset);
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VNSvOutPortB(dwIoBase + MAC_REG_I2MDOPT, byData);
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/* issue write command */
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VNSvOutPortB(dwIoBase + MAC_REG_I2MCSR, I2MCSR_EEMW);
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/* wait DONE be set */
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for (wDelay = 0; wDelay < W_MAX_TIMEOUT; wDelay++) {
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VNSvInPortB(dwIoBase + MAC_REG_I2MCSR, &byWait);
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if (byWait & (I2MCSR_DONE | I2MCSR_NACK))
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break;
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PCAvDelayByIO(CB_DELAY_LOOP_WAIT);
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}
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if ((wDelay < W_MAX_TIMEOUT) &&
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(!(byWait & I2MCSR_NACK))) {
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break;
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}
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}
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if (wNoACK == W_MAX_I2CRETRY) {
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VNSvOutPortB(dwIoBase + MAC_REG_I2MCFG, byOrg);
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return false;
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}
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VNSvOutPortB(dwIoBase + MAC_REG_I2MCFG, byOrg);
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return true;
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}
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/*
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* Description: Turn bits on in eeprom
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*
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* Parameters:
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* In:
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* dwIoBase - I/O base address
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* byContntOffset - address of EEPROM
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* byBits - bits to turn on
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* Out:
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* none
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*
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* Return Value: none
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*
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*/
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void SROMvRegBitsOn(void __iomem *dwIoBase, unsigned char byContntOffset, unsigned char byBits)
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{
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unsigned char byOrgData;
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byOrgData = SROMbyReadEmbedded(dwIoBase, byContntOffset);
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SROMbWriteEmbedded(dwIoBase, byContntOffset, (unsigned char)(byOrgData | byBits));
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}
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/*
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* Description: Turn bits off in eeprom
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*
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* Parameters:
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* In:
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* dwIoBase - I/O base address
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* byContntOffset - address of EEPROM
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* byBits - bits to turn off
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* Out:
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* none
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*
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*/
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void SROMvRegBitsOff(void __iomem *dwIoBase, unsigned char byContntOffset, unsigned char byBits)
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{
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unsigned char byOrgData;
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byOrgData = SROMbyReadEmbedded(dwIoBase, byContntOffset);
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SROMbWriteEmbedded(dwIoBase, byContntOffset, (unsigned char)(byOrgData & (~byBits)));
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}
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/*
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* Description: Test if bits on in eeprom
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*
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* Parameters:
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* In:
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* dwIoBase - I/O base address
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* byContntOffset - address of EEPROM
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* byTestBits - bits to test
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* Out:
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* none
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*
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* Return Value: true if all test bits on; otherwise false
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*
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*/
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bool SROMbIsRegBitsOn(void __iomem *dwIoBase, unsigned char byContntOffset, unsigned char byTestBits)
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{
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unsigned char byOrgData;
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byOrgData = SROMbyReadEmbedded(dwIoBase, byContntOffset);
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return (byOrgData & byTestBits) == byTestBits;
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}
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/*
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* Description: Test if bits off in eeprom
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*
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* Parameters:
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* In:
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* dwIoBase - I/O base address
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* byContntOffset - address of EEPROM
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* byTestBits - bits to test
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* Out:
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* none
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*
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* Return Value: true if all test bits off; otherwise false
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*
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*/
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bool SROMbIsRegBitsOff(void __iomem *dwIoBase, unsigned char byContntOffset, unsigned char byTestBits)
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{
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unsigned char byOrgData;
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byOrgData = SROMbyReadEmbedded(dwIoBase, byContntOffset);
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return !(byOrgData & byTestBits);
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}
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/*
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* Description: Read all contents of eeprom to buffer
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*
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* Parameters:
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* In:
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* dwIoBase - I/O base address
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* Out:
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* pbyEepromRegs - EEPROM content Buffer
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*
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* Return Value: none
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*
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*/
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void SROMvReadAllContents(void __iomem *dwIoBase, unsigned char *pbyEepromRegs)
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{
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int ii;
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/* ii = Rom Address */
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for (ii = 0; ii < EEP_MAX_CONTEXT_SIZE; ii++) {
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*pbyEepromRegs = SROMbyReadEmbedded(dwIoBase, (unsigned char)ii);
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pbyEepromRegs++;
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}
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}
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/*
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* Description: Write all contents of buffer to eeprom
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*
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* Parameters:
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* In:
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* dwIoBase - I/O base address
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* pbyEepromRegs - EEPROM content Buffer
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* Out:
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* none
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*
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* Return Value: none
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*
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*/
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void SROMvWriteAllContents(void __iomem *dwIoBase, unsigned char *pbyEepromRegs)
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{
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int ii;
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/* ii = Rom Address */
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for (ii = 0; ii < EEP_MAX_CONTEXT_SIZE; ii++) {
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SROMbWriteEmbedded(dwIoBase, (unsigned char)ii, *pbyEepromRegs);
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pbyEepromRegs++;
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}
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}
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/*
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* Description: Read Ethernet Address from eeprom to buffer
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*
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* Parameters:
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* In:
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* dwIoBase - I/O base address
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* Out:
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* pbyEtherAddress - Ethernet Address buffer
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*
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* Return Value: none
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*
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*/
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void SROMvReadEtherAddress(void __iomem *dwIoBase, unsigned char *pbyEtherAddress)
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{
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unsigned char ii;
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/* ii = Rom Address */
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for (ii = 0; ii < ETH_ALEN; ii++) {
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*pbyEtherAddress = SROMbyReadEmbedded(dwIoBase, ii);
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pbyEtherAddress++;
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}
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}
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/*
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* Description: Write Ethernet Address from buffer to eeprom
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*
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* Parameters:
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* In:
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* dwIoBase - I/O base address
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* pbyEtherAddress - Ethernet Address buffer
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* Out:
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* none
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*
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* Return Value: none
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*
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*/
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void SROMvWriteEtherAddress(void __iomem *dwIoBase, unsigned char *pbyEtherAddress)
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{
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unsigned char ii;
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/* ii = Rom Address */
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for (ii = 0; ii < ETH_ALEN; ii++) {
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SROMbWriteEmbedded(dwIoBase, ii, *pbyEtherAddress);
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pbyEtherAddress++;
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}
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}
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/*
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* Description: Read Sub_VID and Sub_SysId from eeprom to buffer
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*
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* Parameters:
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* In:
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* dwIoBase - I/O base address
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* Out:
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* pdwSubSysVenId - Sub_VID and Sub_SysId read
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*
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* Return Value: none
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*
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*/
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void SROMvReadSubSysVenId(void __iomem *dwIoBase, unsigned long *pdwSubSysVenId)
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{
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unsigned char *pbyData;
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pbyData = (unsigned char *)pdwSubSysVenId;
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/* sub vendor */
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*pbyData = SROMbyReadEmbedded(dwIoBase, 6);
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*(pbyData+1) = SROMbyReadEmbedded(dwIoBase, 7);
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/* sub system */
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*(pbyData+2) = SROMbyReadEmbedded(dwIoBase, 8);
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*(pbyData+3) = SROMbyReadEmbedded(dwIoBase, 9);
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}
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/*
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* Description: Auto Load EEPROM to MAC register
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*
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* Parameters:
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* In:
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* dwIoBase - I/O base address
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* Out:
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* none
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*
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* Return Value: true if success; otherwise false
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*
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*/
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bool SROMbAutoLoad(void __iomem *dwIoBase)
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{
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unsigned char byWait;
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int ii;
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unsigned char byOrg;
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VNSvInPortB(dwIoBase + MAC_REG_I2MCFG, &byOrg);
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/* turn on hardware retry */
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VNSvOutPortB(dwIoBase + MAC_REG_I2MCFG, (byOrg | I2MCFG_NORETRY));
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MACvRegBitsOn(dwIoBase, MAC_REG_I2MCSR, I2MCSR_AUTOLD);
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/* ii = Rom Address */
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for (ii = 0; ii < EEP_MAX_CONTEXT_SIZE; ii++) {
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MACvTimer0MicroSDelay(dwIoBase, CB_EEPROM_READBYTE_WAIT);
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VNSvInPortB(dwIoBase + MAC_REG_I2MCSR, &byWait);
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if (!(byWait & I2MCSR_AUTOLD))
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break;
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}
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VNSvOutPortB(dwIoBase + MAC_REG_I2MCFG, byOrg);
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if (ii == EEP_MAX_CONTEXT_SIZE)
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return false;
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return true;
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}
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