skxmac2.c

F:worksip2440a board可启动u-boot-like.tar.gz F:worksip2440a board可启动u-boot-like.tar.gz

/******************************************************************************
 *
 * Name:	skxmac2.c
 * Project:	GEnesis, PCI Gigabit Ethernet Adapter
 * Version:	$Revision: 1.1.1.1 $
 * Date:	$Date: 2005/06/27 17:05:05 $
 * Purpose:	Contains functions to initialize the MACs and PHYs
 *
 ******************************************************************************/

/******************************************************************************
 *
 *	(C)Copyright 1998-2003 SysKonnect GmbH.
 *
 *	This program is free software; you can redistribute it and/or modify
 *	it under the terms of the GNU General Public License as published by
 *	the Free Software Foundation; either version 2 of the License, or
 *	(at your option) any later version.
 *
 *	The information in this file is provided "AS IS" without warranty.
 *
 ******************************************************************************/

/******************************************************************************
 *
 * History:
 *
 *	$Log: skxmac2.c,v $
 *	Revision 1.1.1.1  2005/06/27 17:05:05  linuxpark
 *	Initial import.
 *	
 *	Revision 1.91  2003/02/05 15:09:34  rschmidt
 *	Removed setting of 'Collision Test'-bit in SkGmInitPhyMarv().
 *	Disabled auto-update for speed, duplex and flow-control when
 *	auto-negotiation is not enabled (Bug Id #10766).
 *	Editorial changes.
 *
 *	Revision 1.90  2003/01/29 13:35:19  rschmidt
 *	Increment Rx FIFO Overflow counter only in DEBUG-mode.
 *	Corrected define for blinking active LED.
 *
 *	Revision 1.89  2003/01/28 16:37:45  rschmidt
 *	Changed init for blinking active LED
 *
 *	Revision 1.88  2003/01/28 10:09:38  rschmidt
 *	Added debug outputs in SkGmInitMac().
 *	Added customized init of LED registers in SkGmInitPhyMarv(),
 *	for blinking active LED (#ifdef ACT_LED_BLINK) and
 *	for normal duplex LED (#ifdef DUP_LED_NORMAL).
 *	Editorial changes.
 *
 *	Revision 1.87  2002/12/10 14:39:05  rschmidt
 *	Improved initialization of GPHY in SkGmInitPhyMarv().
 *	Editorial changes.
 *
 *	Revision 1.86  2002/12/09 15:01:12  rschmidt
 *	Added setup of Ext. PHY Specific Ctrl Reg (downshift feature).
 *
 *	Revision 1.85  2002/12/05 14:09:16  rschmidt
 *	Improved avoiding endless loop in SkGmPhyWrite(), SkGmPhyWrite().
 *	Added additional advertising for 10Base-T when 100Base-T is selected.
 *	Added case SK_PHY_MARV_FIBER for YUKON Fiber adapter.
 *	Editorial changes.
 *
 *	Revision 1.84  2002/11/15 12:50:09  rschmidt
 *	Changed SkGmCableDiagStatus() when getting results.
 *
 *	Revision 1.83  2002/11/13 10:28:29  rschmidt
 *	Added some typecasts to avoid compiler warnings.
 *
 *	Revision 1.82  2002/11/13 09:20:46  rschmidt
 *	Replaced for(..) with do {} while (...) in SkXmUpdateStats().
 *	Replaced 2 macros GM_IN16() with 1 GM_IN32() in SkGmMacStatistic().
 *	Added SkGmCableDiagStatus() for Virtual Cable Test (VCT).
 *	Editorial changes.
 *
 *	Revision 1.81  2002/10/28 14:28:08  rschmidt
 *	Changed MAC address setup for GMAC in SkGmInitMac().
 *	Optimized handling of counter overflow IRQ in SkGmOverflowStatus().
 *	Editorial changes.
 *
 *	Revision 1.80  2002/10/14 15:29:44  rschmidt
 *	Corrected disabling of all PHY IRQs.
 *	Added WA for deviation #16 (address used for pause packets).
 *	Set Pause Mode in SkMacRxTxEnable() only for Genesis.
 *	Added IRQ and counter for Receive FIFO Overflow in DEBUG-mode.
 *	SkXmTimeStamp() replaced by SkMacTimeStamp().
 *	Added clearing of GMAC Tx FIFO Underrun IRQ in SkGmIrq().
 *	Editorial changes.
 *
 *	Revision 1.79  2002/10/10 15:55:36  mkarl
 *	changes for PLinkSpeedUsed
 *
 *	Revision 1.78  2002/09/12 09:39:51  rwahl
 *	Removed deactivate code for SIRQ overflow event separate for TX/RX.
 *
 *	Revision 1.77  2002/09/09 12:26:37  mkarl
 *	added handling for Yukon to SkXmTimeStamp
 *
 *	Revision 1.76  2002/08/21 16:41:16  rschmidt
 *	Added bit GPC_ENA_XC (Enable MDI crossover) in HWCFG_MODE.
 *	Added forced speed settings in SkGmInitPhyMarv().
 *	Added settings of full/half duplex capabilities for YUKON Fiber.
 *	Editorial changes.
 *
 *	Revision 1.75  2002/08/16 15:12:01  rschmidt
 *	Replaced all if(GIChipId == CHIP_ID_GENESIS) with new entry GIGenesis.
 *	Added function SkMacHashing() for ADDR-Module.
 *	Removed functions SkXmClrSrcCheck(), SkXmClrHashAddr() (calls replaced
 *	with macros).
 *	Removed functions SkGmGetMuxConfig().
 *	Added HWCFG_MODE init for YUKON Fiber.
 *	Changed initialization of GPHY in SkGmInitPhyMarv().
 *	Changed check of parameter in SkXmMacStatistic().
 *	Editorial changes.
 *
 *	Revision 1.74  2002/08/12 14:00:17  rschmidt
 *	Replaced usage of Broadcom PHY Ids with defines.
 *	Corrected error messages in SkGmMacStatistic().
 *	Made SkMacPromiscMode() public for ADDR-Modul.
 *	Editorial changes.
 *
 *	Revision 1.73  2002/08/08 16:26:24  rschmidt
 *	Improved reset sequence for YUKON in SkGmHardRst() and SkGmInitMac().
 *	Replaced XMAC Rx High Watermark init value with SK_XM_RX_HI_WM.
 *	Editorial changes.
 *
 *	Revision 1.72  2002/07/24 15:11:19  rschmidt
 *	Fixed wrong placement of parenthesis.
 *	Editorial changes.
 *
 *	Revision 1.71  2002/07/23 16:05:18  rschmidt
 *	Added global functions for PHY: SkGePhyRead(), SkGePhyWrite().
 *	Fixed Tx Counter Overflow IRQ (Bug ID #10730).
 *	Editorial changes.
 *
 *	Revision 1.70  2002/07/18 14:27:27  rwahl
 *	Fixed syntax error.
 *
 *	Revision 1.69  2002/07/17 17:08:47  rwahl
 *	Fixed check in SkXmMacStatistic().
 *
 *	Revision 1.68  2002/07/16 07:35:24  rwahl
 *	Removed check for cleared mib counter in SkGmResetCounter().
 *
 *	Revision 1.67  2002/07/15 18:35:56  rwahl
 *	Added SkXmUpdateStats(), SkGmUpdateStats(), SkXmMacStatistic(),
 *	  SkGmMacStatistic(), SkXmResetCounter(), SkGmResetCounter(),
 *	  SkXmOverflowStatus(), SkGmOverflowStatus().
 *	Changes to SkXmIrq() & SkGmIrq(): Combined SIRQ Overflow for both
 *	  RX & TX.
 *	Changes to SkGmInitMac(): call to SkGmResetCounter().
 *	Editorial changes.
 *
 *	Revision 1.66  2002/07/15 15:59:30  rschmidt
 *	Added PHY Address in SkXmPhyRead(), SkXmPhyWrite().
 *	Added MIB Clear Counter in SkGmInitMac().
 *	Added Duplex and Flow-Control settings.
 *	Reset all Multicast filtering Hash reg. in SkGmInitMac().
 *	Added new function: SkGmGetMuxConfig().
 *	Editorial changes.
 *
 *	Revision 1.65  2002/06/10 09:35:39  rschmidt
 *	Replaced C++ comments (//).
 *	Added #define VCPU around VCPUwaitTime.
 *	Editorial changes.
 *
 *	Revision 1.64  2002/06/05 08:41:10  rschmidt
 *	Added function for XMAC2: SkXmTimeStamp().
 *	Added function for YUKON: SkGmSetRxCmd().
 *	Changed SkGmInitMac() resp. SkGmHardRst().
 *	Fixed wrong variable in SkXmAutoNegLipaXmac() (debug mode).
 *	SkXmRxTxEnable() replaced by SkMacRxTxEnable().
 *	Editorial changes.
 *
 *	Revision 1.63  2002/04/25 13:04:44  rschmidt
 *	Changes for handling YUKON.
 *	Use of #ifdef OTHER_PHY to eliminate code for unused Phy types.
 *	Macros for XMAC PHY access PHY_READ(), PHY_WRITE() replaced
 *	by functions SkXmPhyRead(), SkXmPhyWrite();
 *	Removed use of PRxCmd to setup XMAC.
 *	Added define PHY_B_AS_PAUSE_MSK for BCom Pause Res.
 *	Added setting of XM_RX_DIS_CEXT in SkXmInitMac().
 *	Removed status parameter from MAC IRQ handler SkMacIrq(),
 *	SkXmIrq() and SkGmIrq().
 *	SkXmAutoNegLipa...() for ext. Phy replaced by SkMacAutoNegLipaPhy().
 *	Added SkMac...() functions to handle both XMAC and GMAC.
 *	Added functions for YUKON: SkGmHardRst(), SkGmSoftRst(),
 *	SkGmSetRxTxEn(), SkGmIrq(), SkGmInitMac(), SkGmInitPhyMarv(),
 *	SkGmAutoNegDoneMarv(), SkGmPhyRead(), SkGmPhyWrite().
 *	Changes for V-CPU support.
 *	Editorial changes.
 *
 *	Revision 1.62  2001/08/06 09:50:14  rschmidt
 *	Workaround BCOM Errata #1 for the C5 type.
 *	Editorial changes.
 *
 *	Revision 1.61  2001/02/09 15:40:59  rassmann
 *	Editorial changes.
 *
 *	Revision 1.60  2001/02/07 15:02:01  cgoos
 *	Added workaround for Fujitsu switch link down.
 *
 *	Revision 1.59  2001/01/10 09:38:06  cgoos
 *	Fixed Broadcom C0/A1 Id check for workaround.
 *
 *	Revision 1.58  2000/11/29 11:30:38  cgoos
 *	Changed DEBUG sections with NW output to xDEBUG
 *
 *	Revision 1.57  2000/11/27 12:40:40  rassmann
 *	Suppressing preamble after first access to BCom, not before (#10556).
 *
 *	Revision 1.56  2000/11/09 12:32:48  rassmann
 *	Renamed variables.
 *
 *	Revision 1.55  2000/11/09 11:30:10  rassmann
 *	WA: Waiting after releasing reset until BCom chip is accessible.
 *
 *	Revision 1.54  2000/10/02 14:10:27  rassmann
 *	Reading BCOM PHY after releasing reset until it returns a valid value.
 *
 *	Revision 1.53  2000/07/27 12:22:11  gklug
 *	fix: possible endless loop in XmHardRst.
 *
 *	Revision 1.52  2000/05/22 08:48:31  malthoff
 *	Fix: #10523 errata valid for all BCOM PHYs.
 *
 *	Revision 1.51  2000/05/17 12:52:18  malthoff
 *	Fixes BCom link errata (#10523).
 *
 *	Revision 1.50  1999/11/22 13:40:14  cgoos
 *	Changed license header to GPL.
 *
 *	Revision 1.49  1999/11/22 08:12:13  malthoff
 *	Add workaround for power consumption feature of BCom C0 chip.
 *
 *	Revision 1.48  1999/11/16 08:39:01  malthoff
 *	Fix: MDIO preamble suppression is port dependent.
 *
 *	Revision 1.47  1999/08/27 08:55:35  malthoff
 *	1000BT: Optimizing MDIO transfer by oppressing MDIO preamble.
 *
 *	Revision 1.46  1999/08/13 11:01:12  malthoff
 *	Fix for 1000BT: pFlowCtrlMode was not set correctly.
 *
 *	Revision 1.45  1999/08/12 19:18:28  malthoff
 *	1000BT Fixes: Do not owerwrite XM_MMU_CMD.
 *	Do not execute BCOM A1 workaround for B1 chips.
 *	Fix pause frame setting.
 *	Always set PHY_B_AC_TX_TST in PHY_BCOM_AUX_CTRL.
 *
 *	Revision 1.44  1999/08/03 15:23:48  cgoos
 *	Fixed setting of PHY interrupt mask in half duplex mode.
 *
 *	Revision 1.43  1999/08/03 15:22:17  cgoos
 *	Added some debug output.
 *	Disabled XMac GP0 interrupt for external PHYs.
 *
 *	Revision 1.42  1999/08/02 08:39:23  malthoff
 *	BCOM PHY: TX LED: To get the mono flop behaviour it is required
 *	to set the LED Traffic Mode bit in PHY_BCOM_P_EXT_CTRL.
 *
 *	Revision 1.41  1999/07/30 06:54:31  malthoff
 *	Add temp. workarounds for the BCOM Phy revision A1.
 *
 *	Revision 1.40  1999/06/01 07:43:26  cgoos
 *	Changed Link Mode Status in SkXmAutoNegDone... from FULL/HALF to
 *	AUTOFULL/AUTOHALF.
 *
 *	Revision 1.39  1999/05/19 07:29:51  cgoos
 *	Changes for 1000Base-T.
 *
 *	Revision 1.38  1999/04/08 14:35:10  malthoff
 *	Add code for enabling signal detect. Enabling signal detect is disabled.
 *
 *	Revision 1.37  1999/03/12 13:42:54  malthoff
 *	Add: Jumbo Frame Support.
 *	Add: Receive modes SK_LENERR_OK_ON/OFF and
 *	SK_BIG_PK_OK_ON/OFF in SkXmSetRxCmd().
 *
 *	Revision 1.36  1999/03/08 10:10:55  gklug
 *	fix: AutoSensing did switch to next mode even if LiPa indicated offline
 *
 *	Revision 1.35  1999/02/22 15:16:41  malthoff
 *	Remove some compiler warnings.
 *
 *	Revision 1.34  1999/01/22 09:19:59  gklug
 *	fix: Init DupMode and InitPauseMd are now called in RxTxEnable
 *
 *	Revision 1.33  1998/12/11 15:19:11  gklug
 *	chg: lipa autoneg stati
 *	chg: debug messages
 *	chg: do NOT use spurious XmIrq
 *
 *	Revision 1.32  1998/12/10 11:08:44  malthoff
 *	bug fix: pAC has been used for IOs in SkXmHardRst().
 *	SkXmInitPhy() is also called for the Diag in SkXmInitMac().
 *
 *	Revision 1.31  1998/12/10 10:39:11  gklug
 *	fix: do 4 RESETS of the XMAC at the beginning
 *	fix: dummy read interrupt source register BEFORE initializing the Phy
 *	add: debug messages
 *	fix: Linkpartners autoneg capability cannot be shown by TX_PAGE interrupt
 *
 *	Revision 1.30  1998/12/07 12:18:32  gklug
 *	add: refinement of autosense mode: take into account the autoneg cap of LiPa
 *
 *	Revision 1.29  1998/12/07 07:12:29  gklug
 *	fix: if page is received the link is  down.
 *
 *	Revision 1.28  1998/12/01 10:12:47  gklug
 *	chg: if spurious IRQ from XMAC encountered, save it
 *
 *	Revision 1.27  1998/11/26 07:33:38  gklug
 *	add: InitPhy call is now in XmInit function
 *
 *	Revision 1.26  1998/11/18 13:38:24  malthoff
 *	'Imsk' is also unused in SkXmAutoNegDone.
 *
 *	Revision 1.25  1998/11/18 13:28:01  malthoff
 *	Remove unused variable 'Reg' in SkXmAutoNegDone().
 *
 *	Revision 1.24  1998/11/18 13:18:45  gklug
 *	add: workaround for xmac errata #1
 *	add: detect Link Down also when Link partner requested config
 *	chg: XMIrq is only used when link is up
 *
 *	Revision 1.23  1998/11/04 07:07:04  cgoos
 *	Added function SkXmRxTxEnable.
 *
 *	Revision 1.22  1998/10/30 07:35:54  gklug
 *	fix: serve LinkDown interrupt when link is already down
 *
 *	Revision 1.21  1998/10/29 15:32:03  gklug
 *	fix: Link Down signaling
 *
 *	Revision 1.20  1998/10/29 11:17:27  gklug
 *	fix: AutoNegDone bug
 *
 *	Revision 1.19  1998/10/29 10:14:43  malthoff
 *	Add endainesss comment for reading/writing MAC addresses.
 *
 *	Revision 1.18  1998/10/28 07:48:55  cgoos
 *	Fix: ASS somtimes signaled although link is up.
 *
 *	Revision 1.17  1998/10/26 07:55:39  malthoff
 *	Fix in SkXmInitPauseMd(): Pause Mode
 *	was disabled and not enabled.
 *	Fix in SkXmAutoNegDone(): Checking Mode bits
 *	always failed, becaues of some missing braces.
 *
 *	Revision 1.16  1998/10/22 09:46:52  gklug
 *	fix SysKonnectFileId typo
 *
 *	Revision 1.15  1998/10/21 05:51:37  gklug
 *	add: para DoLoop to InitPhy function for loopback set-up
 *
 *	Revision 1.14  1998/10/16 10:59:23  malthoff
 *	Remove Lint warning for dummy reads.
 *
 *	Revision 1.13  1998/10/15 14:01:20  malthoff
 *	Fix: SkXmAutoNegDone() is (int) but does not return a value.
 *
 *	Revision 1.12  1998/10/14 14:45:04  malthoff
 *	Remove SKERR_SIRQ_E0xx and SKERR_SIRQ_E0xxMSG by
 *	SKERR_HWI_Exx and SKERR_HWI_E0xxMSG to be independent
 *	from the Sirq module.
 *
 *	Revision 1.11  1998/10/14 13:59:01  gklug
 *	add: InitPhy function
 *
 *	Revision 1.10  1998/10/14 11:20:57  malthoff
 *	Make SkXmAutoNegDone() public, because it's
 *	used in diagnostics, too.
 *	The Link Up event to the RLMT is issued in SkXmIrq().
 *  SkXmIrq() is not available in diagnostics.
 *  Use PHY_READ when reading PHY registers.
 *
 *	Revision 1.9  1998/10/14 05:50:10  cgoos
 *	Added definition for Para.
 *
 *	Revision 1.8  1998/10/14 05:41:28  gklug
 *	add: Xmac IRQ
 *	add: auto-negotiation done function
 *
 *	Revision 1.7  1998/10/09 06:55:20  malthoff
 *	The configuration of the XMACs Tx Request Threshold
 *	depends from the drivers port usage now. The port
 *	usage is configured in GIPortUsage.
 *
 *	Revision 1.6  1998/10/05 07:48:00  malthoff
 *	minor changes
 *
 *	Revision 1.5  1998/10/01 07:03:54  gklug
 *	add: dummy function for XMAC ISR
 *
 *	Revision 1.4  1998/09/30 12:37:44  malthoff
 *	Add SkXmSetRxCmd() and related code.
 *
 *	Revision 1.3  1998/09/28 13:26:40  malthoff
 *	Add SkXmInitMac(), SkXmInitDupMd(), and SkXmInitPauseMd()
 *
 *	Revision 1.2  1998/09/16 14:34:21  malthoff
 *	Add SkXmClrExactAddr(), SkXmClrSrcCheck(),
 *	SkXmClrHashAddr(), SkXmFlushTxFifo(),
 *	SkXmFlushRxFifo(), and SkXmHardRst().
 *	Finish Coding of SkXmSoftRst().
 *	The sources may be compiled now.
 *
 *	Revision 1.1  1998/09/04 10:05:56  malthoff
 *	Created.
 *
 *
 ******************************************************************************/

#include <config.h>

#ifdef CONFIG_SK98

#include "h/skdrv1st.h"
#include "h/skdrv2nd.h"

/* typedefs *******************************************************************/

/* BCOM PHY magic pattern list */
typedef struct s_PhyHack {
	int		PhyReg;		/* Phy register */
	SK_U16	PhyVal;		/* Value to write */
} BCOM_HACK;

/* local variables ************************************************************/
static const char SysKonnectFileId[] =
	"@(#)$Id: skxmac2.c,v 1.1.1.1 2005/06/27 17:05:05 linuxpark Exp $ (C) SK ";

BCOM_HACK BcomRegA1Hack[] = {
 { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1104 }, { 0x17, 0x0013 },
 { 0x15, 0x0404 }, { 0x17, 0x8006 }, { 0x15, 0x0132 }, { 0x17, 0x8006 },
 { 0x15, 0x0232 }, { 0x17, 0x800D }, { 0x15, 0x000F }, { 0x18, 0x0420 },
 { 0, 0 }
};
BCOM_HACK BcomRegC0Hack[] = {
 { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1204 }, { 0x17, 0x0013 },
 { 0x15, 0x0A04 }, { 0x18, 0x0420 },
 { 0, 0 }
};

/* function prototypes ********************************************************/
static void	SkXmInitPhyXmac(SK_AC*, SK_IOC, int, SK_BOOL);
static void	SkXmInitPhyBcom(SK_AC*, SK_IOC, int, SK_BOOL);
static void	SkGmInitPhyMarv(SK_AC*, SK_IOC, int, SK_BOOL);
static int	SkXmAutoNegDoneXmac(SK_AC*, SK_IOC, int);
static int	SkXmAutoNegDoneBcom(SK_AC*, SK_IOC, int);
static int	SkGmAutoNegDoneMarv(SK_AC*, SK_IOC, int);
#ifdef OTHER_PHY
static void	SkXmInitPhyLone(SK_AC*, SK_IOC, int, SK_BOOL);
static void	SkXmInitPhyNat (SK_AC*, SK_IOC, int, SK_BOOL);
static int	SkXmAutoNegDoneLone(SK_AC*, SK_IOC, int);
static int	SkXmAutoNegDoneNat (SK_AC*, SK_IOC, int);
#endif /* OTHER_PHY */


/******************************************************************************
 *
 *	SkXmPhyRead() - Read from XMAC PHY register
 *
 * Description:	reads a 16-bit word from XMAC PHY or ext. PHY
 *
 * Returns:
 *	nothing
 */
void SkXmPhyRead(
SK_AC	*pAC,		/* Adapter Context */
SK_IOC	IoC,		/* I/O Context */
int		Port,		/* Port Index (MAC_1 + n) */
int		PhyReg,		/* Register Address (Offset) */
SK_U16	*pVal)		/* Pointer to Value */
{
	SK_U16		Mmu;
	SK_GEPORT	*pPrt;

	pPrt = &pAC->GIni.GP[Port];

	/* write the PHY register's address */
	XM_OUT16(IoC, Port, XM_PHY_ADDR, PhyReg | pPrt->PhyAddr);