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net: ns9750: drop !NET_MULTI driver

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Only one board uses this driver (ns9750dev), but the board doesn't seem
to have an entry to actually build it in the Makefile/boards.cfg, so just
delete net support from its board config.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
master
Mike Frysinger 14 years ago committed by Wolfgang Denk
parent ae6edb54c0
commit 8b710b163b
4 changed files with 0 additions and 1090 deletions
  1. 1
      drivers/net/Makefile
  2. 789
      drivers/net/ns9750_eth.c
  3. 2
      include/configs/ns9750dev.h
  4. 298
      include/ns9750_eth.h

1
drivers/net/Makefile
Unescape View File

@ -61,7 +61,6 @@ COBJS-$(CONFIG_DRIVER_AX88796L) += ax88796.o ne2000_base.o
COBJS-$(CONFIG_DRIVER_NETARMETH) += netarm_eth.o
COBJS-$(CONFIG_NETCONSOLE) += netconsole.o
COBJS-$(CONFIG_NS8382X) += ns8382x.o
COBJS-$(CONFIG_DRIVER_NS9750_ETHERNET) += ns9750_eth.o
COBJS-$(CONFIG_PCNET) += pcnet.o
COBJS-$(CONFIG_PLB2800_ETHER) += plb2800_eth.o
COBJS-$(CONFIG_DRIVER_RTL8019) += rtl8019.o

789
drivers/net/ns9750_eth.c
Unescape View File

@ -1,789 +0,0 @@
/***********************************************************************
*
* Copyright (C) 2004 by FS Forth-Systeme GmbH.
* All rights reserved.
*
* $Id: ns9750_eth.c,v 1.2 2004/02/24 14:09:39 mpietrek Exp $
* @Author: Markus Pietrek
* @Descr: Ethernet driver for the NS9750. Uses DMA Engine with polling
* interrupt status. But interrupts are not enabled.
* Only one tx buffer descriptor and the RXA buffer descriptor are used
* Currently no transmit lockup handling is included. eth_send has a 5s
* timeout for sending frames. No retransmits are performed when an
* error occurs.
* @References: [1] NS9750 Hardware Reference, December 2003
* [2] Intel LXT971 Datasheet #249414 Rev. 02
* [3] NS7520 Linux Ethernet Driver
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
***********************************************************************/
#include <common.h>
#include <net.h> /* NetSendPacket */
#include "ns9750_eth.h" /* for Ethernet and PHY */
/* some definition to make transition to linux easier */
#define NS9750_DRIVER_NAME "eth"
#define KERN_WARNING "Warning:"
#define KERN_ERR "Error:"
#define KERN_INFO "Info:"
#if 0
# define DEBUG
#endif
#ifdef DEBUG
# define printk printf
# define DEBUG_INIT 0x0001
# define DEBUG_MINOR 0x0002
# define DEBUG_RX 0x0004
# define DEBUG_TX 0x0008
# define DEBUG_INT 0x0010
# define DEBUG_POLL 0x0020
# define DEBUG_LINK 0x0040
# define DEBUG_MII 0x0100
# define DEBUG_MII_LOW 0x0200
# define DEBUG_MEM 0x0400
# define DEBUG_ERROR 0x4000
# define DEBUG_ERROR_CRIT 0x8000
static int nDebugLvl = DEBUG_ERROR_CRIT;
# define DEBUG_ARGS0( FLG, a0 ) if( ( nDebugLvl & (FLG) ) == (FLG) ) \
printf("%s: " a0, __FUNCTION__, 0, 0, 0, 0, 0, 0 )
# define DEBUG_ARGS1( FLG, a0, a1 ) if( ( nDebugLvl & (FLG) ) == (FLG)) \
printf("%s: " a0, __FUNCTION__, (int)(a1), 0, 0, 0, 0, 0 )
# define DEBUG_ARGS2( FLG, a0, a1, a2 ) if( (nDebugLvl & (FLG)) ==(FLG))\
printf("%s: " a0, __FUNCTION__, (int)(a1), (int)(a2), 0, 0,0,0 )
# define DEBUG_ARGS3( FLG, a0, a1, a2, a3 ) if((nDebugLvl &(FLG))==(FLG))\
printf("%s: "a0,__FUNCTION__,(int)(a1),(int)(a2),(int)(a3),0,0,0)
# define DEBUG_FN( FLG ) if( (nDebugLvl & (FLG)) == (FLG) ) \
printf("\r%s:line %d\n", (int)__FUNCTION__, __LINE__, 0,0,0,0);
# define ASSERT( expr, func ) if( !( expr ) ) { \
printf( "Assertion failed! %s:line %d %s\n", \
(int)__FUNCTION__,__LINE__,(int)(#expr),0,0,0); \
func }
#else /* DEBUG */
# define printk(...)
# define DEBUG_ARGS0( FLG, a0 )
# define DEBUG_ARGS1( FLG, a0, a1 )
# define DEBUG_ARGS2( FLG, a0, a1, a2 )
# define DEBUG_ARGS3( FLG, a0, a1, a2, a3 )
# define DEBUG_FN( n )
# define ASSERT(expr, func)
#endif /* DEBUG */
#define NS9750_MII_NEG_DELAY (5*CONFIG_SYS_HZ) /* in s */
#define TX_TIMEOUT (5*CONFIG_SYS_HZ) /* in s */
/* @TODO move it to eeprom.h */
#define FS_EEPROM_AUTONEG_MASK 0x7
#define FS_EEPROM_AUTONEG_SPEED_MASK 0x1
#define FS_EEPROM_AUTONEG_SPEED_10 0x0
#define FS_EEPROM_AUTONEG_SPEED_100 0x1
#define FS_EEPROM_AUTONEG_DUPLEX_MASK 0x2
#define FS_EEPROM_AUTONEG_DUPLEX_HALF 0x0
#define FS_EEPROM_AUTONEG_DUPLEX_FULL 0x2
#define FS_EEPROM_AUTONEG_ENABLE_MASK 0x4
#define FS_EEPROM_AUTONEG_DISABLE 0x0
#define FS_EEPROM_AUTONEG_ENABLE 0x4
/* buffer descriptors taken from [1] p.306 */
typedef struct
{
unsigned int* punSrc;
unsigned int unLen; /* 11 bits */
unsigned int* punDest; /* unused */
union {
unsigned int unReg;
struct {
unsigned uStatus : 16;
unsigned uRes : 12;
unsigned uFull : 1;
unsigned uEnable : 1;
unsigned uInt : 1;
unsigned uWrap : 1;
} bits;
} s;
} rx_buffer_desc_t;
typedef struct
{
unsigned int* punSrc;
unsigned int unLen; /* 10 bits */
unsigned int* punDest; /* unused */
union {
unsigned int unReg; /* only 32bit accesses may done to NS9750
* eth engine */
struct {
unsigned uStatus : 16;
unsigned uRes : 12;
unsigned uFull : 1;
unsigned uLast : 1;
unsigned uInt : 1;
unsigned uWrap : 1;
} bits;
} s;
} tx_buffer_desc_t;
static int ns9750_eth_reset( void );
static void ns9750_link_force( void );
static void ns9750_link_auto_negotiate( void );
static void ns9750_link_update_egcr( void );
static void ns9750_link_print_changed( void );
/* the PHY stuff */
static char ns9750_mii_identify_phy( void );
static unsigned short ns9750_mii_read( unsigned short uiRegister );
static void ns9750_mii_write( unsigned short uiRegister, unsigned short uiData );
static unsigned int ns9750_mii_get_clock_divisor( unsigned int unMaxMDIOClk );
static unsigned int ns9750_mii_poll_busy( void );
static unsigned int nPhyMaxMdioClock = PHY_MDIO_MAX_CLK;
static unsigned char ucLinkMode = FS_EEPROM_AUTONEG_ENABLE;
static unsigned int uiLastLinkStatus;
static PhyType phyDetected = PHY_NONE;
/* we use only one tx buffer descriptor */
static tx_buffer_desc_t* pTxBufferDesc =
(tx_buffer_desc_t*) get_eth_reg_addr( NS9750_ETH_TXBD );
/* we use only one rx buffer descriptor of the 4 */
static rx_buffer_desc_t aRxBufferDesc[ 4 ];
/***********************************************************************
* @Function: eth_init
* @Return: -1 on failure otherwise 0
* @Descr: Initializes the ethernet engine and uses either FS Forth's default
* MAC addr or the one in environment
***********************************************************************/
int eth_init (bd_t * pbis)
{
/* This default MAC Addr is reserved by FS Forth-Systeme for the case of
EEPROM failures */
unsigned char aucMACAddr[6] = { 0x00, 0x04, 0xf3, 0x00, 0x06, 0x35 };
char *pcTmp = getenv ("ethaddr");
char *pcEnd;
int i;
DEBUG_FN (DEBUG_INIT);
/* no need to check for hardware */
if (!ns9750_eth_reset ())
return -1;
if (pcTmp != NULL)
for (i = 0; i < 6; i++) {
aucMACAddr[i] =
pcTmp ? simple_strtoul (pcTmp, &pcEnd,
16) : 0;
pcTmp = (*pcTmp) ? pcEnd + 1 : pcEnd;
}
/* configure ethernet address */
*get_eth_reg_addr (NS9750_ETH_SA1) =
aucMACAddr[5] << 8 | aucMACAddr[4];
*get_eth_reg_addr (NS9750_ETH_SA2) =
aucMACAddr[3] << 8 | aucMACAddr[2];
*get_eth_reg_addr (NS9750_ETH_SA3) =
aucMACAddr[1] << 8 | aucMACAddr[0];
/* enable hardware */
*get_eth_reg_addr (NS9750_ETH_MAC1) = NS9750_ETH_MAC1_RXEN;
/* the linux kernel may give packets < 60 bytes, for example arp */
*get_eth_reg_addr (NS9750_ETH_MAC2) = NS9750_ETH_MAC2_CRCEN |
NS9750_ETH_MAC2_PADEN | NS9750_ETH_MAC2_HUGE;
/* enable receive and transmit FIFO, use 10/100 Mbps MII */
*get_eth_reg_addr (NS9750_ETH_EGCR1) =
NS9750_ETH_EGCR1_ETXWM |
NS9750_ETH_EGCR1_ERX |
NS9750_ETH_EGCR1_ERXDMA |
NS9750_ETH_EGCR1_ETX |
NS9750_ETH_EGCR1_ETXDMA | NS9750_ETH_EGCR1_ITXA;
/* prepare DMA descriptors */
for (i = 0; i < 4; i++) {
aRxBufferDesc[i].punSrc = 0;
aRxBufferDesc[i].unLen = 0;
aRxBufferDesc[i].s.bits.uWrap = 1;
aRxBufferDesc[i].s.bits.uInt = 1;
aRxBufferDesc[i].s.bits.uEnable = 0;
aRxBufferDesc[i].s.bits.uFull = 0;
}
/* NetRxPackets[ 0 ] is initialized before eth_init is called and never
changes. NetRxPackets is 32bit aligned */
aRxBufferDesc[0].punSrc = (unsigned int *) NetRxPackets[0];
aRxBufferDesc[0].s.bits.uEnable = 1;
aRxBufferDesc[0].unLen = 1522; /* as stated in [1] p.307 */
*get_eth_reg_addr (NS9750_ETH_RXAPTR) =
(unsigned int) &aRxBufferDesc[0];
/* [1] Tab. 221 states less than 5us */
*get_eth_reg_addr (NS9750_ETH_EGCR1) |= NS9750_ETH_EGCR1_ERXINIT;
while (!
(*get_eth_reg_addr (NS9750_ETH_EGSR) & NS9750_ETH_EGSR_RXINIT))
/* wait for finish */
udelay (1);
/* @TODO do we need to clear RXINIT? */
*get_eth_reg_addr (NS9750_ETH_EGCR1) &= ~NS9750_ETH_EGCR1_ERXINIT;
*get_eth_reg_addr (NS9750_ETH_RXFREE) = 0x1;
return 0;
}
/***********************************************************************
* @Function: eth_send
* @Return: -1 on timeout otherwise 1
* @Descr: sends one frame by DMA
***********************************************************************/
int eth_send (volatile void *pPacket, int nLen)
{
ulong ulTimeout;
DEBUG_FN (DEBUG_TX);
/* clear old status values */
*get_eth_reg_addr (NS9750_ETH_EINTR) &=
*get_eth_reg_addr (NS9750_ETH_EINTR) & NS9750_ETH_EINTR_TX_MA;
/* prepare Tx Descriptors */
pTxBufferDesc->punSrc = (unsigned int *) pPacket; /* pPacket is 32bit
* aligned */
pTxBufferDesc->unLen = nLen;
/* only 32bit accesses allowed. wrap, full, interrupt and enabled to 1 */
pTxBufferDesc->s.unReg = 0xf0000000;
/* pTxBufferDesc is the first possible buffer descriptor */
*get_eth_reg_addr (NS9750_ETH_TXPTR) = 0x0;
/* enable processor for next frame */
*get_eth_reg_addr (NS9750_ETH_EGCR2) &= ~NS9750_ETH_EGCR2_TCLER;
*get_eth_reg_addr (NS9750_ETH_EGCR2) |= NS9750_ETH_EGCR2_TCLER;
ulTimeout = get_timer (0);
DEBUG_ARGS0 (DEBUG_TX | DEBUG_MINOR,
"Waiting for transmission to finish\n");
while (!
(*get_eth_reg_addr (NS9750_ETH_EINTR) &
(NS9750_ETH_EINTR_TXDONE | NS9750_ETH_EINTR_TXERR))) {
/* do nothing, wait for completion */
if (get_timer (0) - ulTimeout > TX_TIMEOUT) {
DEBUG_ARGS0 (DEBUG_TX, "Transmit Timed out\n");
return -1;
}
}
DEBUG_ARGS0 (DEBUG_TX | DEBUG_MINOR, "transmitted...\n");
return 0;
}
/***********************************************************************
* @Function: eth_rx
* @Return: size of last frame in bytes or 0 if no frame available
* @Descr: gives one frame to U-Boot which has been copied by DMA engine already
* to NetRxPackets[ 0 ].
***********************************************************************/
int eth_rx (void)
{
int nLen = 0;
unsigned int unStatus;
unStatus =
*get_eth_reg_addr (NS9750_ETH_EINTR) & NS9750_ETH_EINTR_RX_MA;
if (!unStatus)
/* no packet available, return immediately */
return 0;
DEBUG_FN (DEBUG_RX);
/* unLen always < max(nLen) and discard checksum */
nLen = (int) aRxBufferDesc[0].unLen - 4;
/* acknowledge status register */
*get_eth_reg_addr (NS9750_ETH_EINTR) = unStatus;
aRxBufferDesc[0].unLen = 1522;
aRxBufferDesc[0].s.bits.uFull = 0;
/* Buffer A descriptor available again */
*get_eth_reg_addr (NS9750_ETH_RXFREE) |= 0x1;
/* NetReceive may call eth_send. Due to a possible bug of the NS9750 we
* have to acknowledge the received frame before sending a new one */
if (unStatus & NS9750_ETH_EINTR_RXDONEA)
NetReceive (NetRxPackets[0], nLen);
return nLen;
}
/***********************************************************************
* @Function: eth_halt
* @Return: n/a
* @Descr: stops the ethernet engine
***********************************************************************/
void eth_halt (void)
{
DEBUG_FN (DEBUG_INIT);
*get_eth_reg_addr (NS9750_ETH_MAC1) &= ~NS9750_ETH_MAC1_RXEN;
*get_eth_reg_addr (NS9750_ETH_EGCR1) &= ~(NS9750_ETH_EGCR1_ERX |
NS9750_ETH_EGCR1_ERXDMA |
NS9750_ETH_EGCR1_ETX |
NS9750_ETH_EGCR1_ETXDMA);
}
/***********************************************************************
* @Function: ns9750_eth_reset
* @Return: 0 on failure otherwise 1
* @Descr: resets the ethernet interface and the PHY,
* performs auto negotiation or fixed modes
***********************************************************************/
static int ns9750_eth_reset (void)
{
DEBUG_FN (DEBUG_MINOR);
/* Reset MAC */
*get_eth_reg_addr (NS9750_ETH_EGCR1) |= NS9750_ETH_EGCR1_MAC_HRST;
udelay (5); /* according to [1], p.322 */
*get_eth_reg_addr (NS9750_ETH_EGCR1) &= ~NS9750_ETH_EGCR1_MAC_HRST;
/* reset and initialize PHY */
*get_eth_reg_addr (NS9750_ETH_MAC1) &= ~NS9750_ETH_MAC1_SRST;
/* we don't support hot plugging of PHY, therefore we don't reset
phyDetected and nPhyMaxMdioClock here. The risk is if the setting is
incorrect the first open
may detect the PHY correctly but succeding will fail
For reseting the PHY and identifying we have to use the standard
MDIO CLOCK value 2.5 MHz only after hardware reset
After having identified the PHY we will do faster */
*get_eth_reg_addr (NS9750_ETH_MCFG) =
ns9750_mii_get_clock_divisor (nPhyMaxMdioClock);
/* reset PHY */
ns9750_mii_write(MII_BMCR, BMCR_RESET);
ns9750_mii_write(MII_BMCR, 0);
/* @TODO check time */
udelay (3000); /* [2] p.70 says at least 300us reset recovery time. But
go sure, it didn't worked stable at higher timer
frequencies under LxNETES-2.x */
/* MII clock has been setup to default, ns9750_mii_identify_phy should
work for all */
if (!ns9750_mii_identify_phy ()) {
printk (KERN_ERR NS9750_DRIVER_NAME
": Unsupported PHY, aborting\n");
return 0;
}
/* now take the highest MDIO clock possible after detection */
*get_eth_reg_addr (NS9750_ETH_MCFG) =
ns9750_mii_get_clock_divisor (nPhyMaxMdioClock);
/* PHY has been detected, so there can be no abort reason and we can
finish initializing ethernet */
uiLastLinkStatus = 0xff; /* undefined */
if ((ucLinkMode & FS_EEPROM_AUTONEG_ENABLE_MASK) ==
FS_EEPROM_AUTONEG_DISABLE)
/* use parameters defined */
ns9750_link_force ();
else
ns9750_link_auto_negotiate ();
if (phyDetected == PHY_LXT971A)
/* set LED2 to link mode */
ns9750_mii_write (PHY_LXT971_LED_CFG,
PHY_LXT971_LED_CFG_LINK_ACT <<
PHY_LXT971_LED_CFG_SHIFT_LED2);
return 1;
}
/***********************************************************************
* @Function: ns9750_link_force
* @Return: void
* @Descr: configures eth and MII to use the link mode defined in
* ucLinkMode
***********************************************************************/
static void ns9750_link_force (void)
{
unsigned short uiControl;
DEBUG_FN (DEBUG_LINK);
uiControl = ns9750_mii_read(MII_BMCR);
uiControl &= ~(BMCR_SPEED1000 | BMCR_SPEED100 |
BMCR_ANENABLE | BMCR_FULLDPLX);
uiLastLinkStatus = 0;
if ((ucLinkMode & FS_EEPROM_AUTONEG_SPEED_MASK) ==
FS_EEPROM_AUTONEG_SPEED_100) {
uiControl |= BMCR_SPEED100;
uiLastLinkStatus |= PHY_LXT971_STAT2_100BTX;
}
if ((ucLinkMode & FS_EEPROM_AUTONEG_DUPLEX_MASK) ==
FS_EEPROM_AUTONEG_DUPLEX_FULL) {
uiControl |= BMCR_FULLDPLX;
uiLastLinkStatus |= PHY_LXT971_STAT2_DUPLEX_MODE;
}
ns9750_mii_write(MII_BMCR, uiControl);
ns9750_link_print_changed ();
ns9750_link_update_egcr ();
}
/***********************************************************************
* @Function: ns9750_link_auto_negotiate
* @Return: void
* @Descr: performs auto-negotation of link.
***********************************************************************/
static void ns9750_link_auto_negotiate (void)
{
unsigned long ulStartJiffies;
unsigned short uiStatus;
DEBUG_FN (DEBUG_LINK);
/* run auto-negotation */
/* define what we are capable of */
ns9750_mii_write(MII_ADVERTISE,
LPA_100FULL |
LPA_100HALF |
LPA_10FULL |
LPA_10HALF |
PHY_ANLPAR_PSB_802_3);
/* start auto-negotiation */
ns9750_mii_write(MII_BMCR, BMCR_ANENABLE | BMCR_ANRESTART);
/* wait for completion */
ulStartJiffies = get_ticks ();
while (get_ticks () < ulStartJiffies + NS9750_MII_NEG_DELAY) {
uiStatus = ns9750_mii_read(MII_BMSR);
if ((uiStatus &
(BMSR_ANEGCOMPLETE | BMSR_LSTATUS)) ==
(BMSR_ANEGCOMPLETE | BMSR_LSTATUS)) {
/* lucky we are, auto-negotiation succeeded */
ns9750_link_print_changed ();
ns9750_link_update_egcr ();
return;
}
}
DEBUG_ARGS0 (DEBUG_LINK, "auto-negotiation timed out\n");
/* ignore invalid link settings */
}
/***********************************************************************
* @Function: ns9750_link_update_egcr
* @Return: void
* @Descr: updates the EGCR and MAC2 link status after mode change or
* auto-negotation
***********************************************************************/
static void ns9750_link_update_egcr (void)
{
unsigned int unEGCR;
unsigned int unMAC2;
unsigned int unIPGT;
DEBUG_FN (DEBUG_LINK);
unEGCR = *get_eth_reg_addr (NS9750_ETH_EGCR1);
unMAC2 = *get_eth_reg_addr (NS9750_ETH_MAC2);
unIPGT = *get_eth_reg_addr (NS9750_ETH_IPGT) & ~NS9750_ETH_IPGT_MA;
unMAC2 &= ~NS9750_ETH_MAC2_FULLD;
if ((uiLastLinkStatus & PHY_LXT971_STAT2_DUPLEX_MODE)
== PHY_LXT971_STAT2_DUPLEX_MODE) {
unMAC2 |= NS9750_ETH_MAC2_FULLD;
unIPGT |= 0x15; /* see [1] p. 339 */
} else
unIPGT |= 0x12; /* see [1] p. 339 */
*get_eth_reg_addr (NS9750_ETH_MAC2) = unMAC2;
*get_eth_reg_addr (NS9750_ETH_EGCR1) = unEGCR;
*get_eth_reg_addr (NS9750_ETH_IPGT) = unIPGT;
}
/***********************************************************************
* @Function: ns9750_link_print_changed
* @Return: void
* @Descr: checks whether the link status has changed and if so prints
* the new mode
***********************************************************************/
static void ns9750_link_print_changed (void)
{
unsigned short uiStatus;
unsigned short uiControl;
DEBUG_FN (DEBUG_LINK);
uiControl = ns9750_mii_read(MII_BMCR);
if ((uiControl & BMCR_ANENABLE) == BMCR_ANENABLE) {
/* BMSR_LSTATUS is only set on autonegotiation */
uiStatus = ns9750_mii_read(MII_BMSR);
if (!(uiStatus & BMSR_LSTATUS)) {
printk (KERN_WARNING NS9750_DRIVER_NAME
": link down\n");
/* @TODO Linux: carrier_off */
} else {
/* @TODO Linux: carrier_on */
if (phyDetected == PHY_LXT971A) {
uiStatus = ns9750_mii_read (PHY_LXT971_STAT2);
uiStatus &= (PHY_LXT971_STAT2_100BTX |
PHY_LXT971_STAT2_DUPLEX_MODE |
PHY_LXT971_STAT2_AUTO_NEG);
/* mask out all uninteresting parts */
}
/* other PHYs must store their link information in
uiStatus as PHY_LXT971 */
}
} else {
/* mode has been forced, so uiStatus should be the same as the
last link status, enforce printing */
uiStatus = uiLastLinkStatus;
uiLastLinkStatus = 0xff;
}
if (uiStatus != uiLastLinkStatus) {
/* save current link status */
uiLastLinkStatus = uiStatus;
/* print new link status */
printk (KERN_INFO NS9750_DRIVER_NAME
": link mode %i Mbps %s duplex %s\n",
(uiStatus & PHY_LXT971_STAT2_100BTX) ? 100 : 10,
(uiStatus & PHY_LXT971_STAT2_DUPLEX_MODE) ? "full" :
"half",
(uiStatus & PHY_LXT971_STAT2_AUTO_NEG) ? "(auto)" :
"");
}
}
/***********************************************************************
* the MII low level stuff
***********************************************************************/
/***********************************************************************
* @Function: ns9750_mii_identify_phy
* @Return: 1 if supported PHY has been detected otherwise 0
* @Descr: checks for supported PHY and prints the IDs.
***********************************************************************/
static char ns9750_mii_identify_phy (void)
{
unsigned short uiID1;
unsigned short uiID2;
unsigned char *szName;
char cRes = 0;
DEBUG_FN (DEBUG_MII);
phyDetected = (PhyType) uiID1 = ns9750_mii_read(MII_PHYSID1);
switch (phyDetected) {
case PHY_LXT971A:
szName = "LXT971A";
uiID2 = ns9750_mii_read(MII_PHYSID2);
nPhyMaxMdioClock = PHY_LXT971_MDIO_MAX_CLK;
cRes = 1;
break;
case PHY_NONE:
default:
/* in case uiID1 == 0 && uiID2 == 0 we may have the wrong
address or reset sets the wrong NS9750_ETH_MCFG_CLKS */
uiID2 = 0;
szName = "unknown";
nPhyMaxMdioClock = PHY_MDIO_MAX_CLK;
phyDetected = PHY_NONE;
}
printk (KERN_INFO NS9750_DRIVER_NAME
": PHY (0x%x, 0x%x) = %s detected\n", uiID1, uiID2, szName);
return cRes;
}
/***********************************************************************
* @Function: ns9750_mii_read
* @Return: the data read from PHY register uiRegister
* @Descr: the data read may be invalid if timed out. If so, a message
* is printed but the invalid data is returned.
* The fixed device address is being used.
***********************************************************************/
static unsigned short ns9750_mii_read (unsigned short uiRegister)
{
DEBUG_FN (DEBUG_MII_LOW);
/* write MII register to be read */
*get_eth_reg_addr (NS9750_ETH_MADR) =
NS9750_ETH_PHY_ADDRESS << 8 | uiRegister;
*get_eth_reg_addr (NS9750_ETH_MCMD) = NS9750_ETH_MCMD_READ;
if (!ns9750_mii_poll_busy ())
printk (KERN_WARNING NS9750_DRIVER_NAME
": MII still busy in read\n");
/* continue to read */
*get_eth_reg_addr (NS9750_ETH_MCMD) = 0;
return (unsigned short) (*get_eth_reg_addr (NS9750_ETH_MRDD));
}
/***********************************************************************
* @Function: ns9750_mii_write
* @Return: nothing
* @Descr: writes the data to the PHY register. In case of a timeout,
* no special handling is performed but a message printed
* The fixed device address is being used.
***********************************************************************/
static void ns9750_mii_write (unsigned short uiRegister,
unsigned short uiData)
{
DEBUG_FN (DEBUG_MII_LOW);
/* write MII register to be written */
*get_eth_reg_addr (NS9750_ETH_MADR) =
NS9750_ETH_PHY_ADDRESS << 8 | uiRegister;
*get_eth_reg_addr (NS9750_ETH_MWTD) = uiData;
if (!ns9750_mii_poll_busy ()) {
printf (KERN_WARNING NS9750_DRIVER_NAME
": MII still busy in write\n");
}
}
/***********************************************************************
* @Function: ns9750_mii_get_clock_divisor
* @Return: the clock divisor that should be used in NS9750_ETH_MCFG_CLKS
* @Descr: if no clock divisor can be calculated for the
* current SYSCLK and the maximum MDIO Clock, a warning is printed
* and the greatest divisor is taken
***********************************************************************/
static unsigned int ns9750_mii_get_clock_divisor (unsigned int unMaxMDIOClk)
{
struct {
unsigned int unSysClkDivisor;
unsigned int unClks; /* field for NS9750_ETH_MCFG_CLKS */
} PHYClockDivisors[] = {
{
4, NS9750_ETH_MCFG_CLKS_4}, {
6, NS9750_ETH_MCFG_CLKS_6}, {
8, NS9750_ETH_MCFG_CLKS_8}, {
10, NS9750_ETH_MCFG_CLKS_10}, {
20, NS9750_ETH_MCFG_CLKS_20}, {
30, NS9750_ETH_MCFG_CLKS_30}, {
40, NS9750_ETH_MCFG_CLKS_40}
};
int nIndexSysClkDiv;
int nArraySize =
sizeof (PHYClockDivisors) / sizeof (PHYClockDivisors[0]);
unsigned int unClks = NS9750_ETH_MCFG_CLKS_40; /* defaults to
greatest div */
DEBUG_FN (DEBUG_INIT);
for (nIndexSysClkDiv = 0; nIndexSysClkDiv < nArraySize;
nIndexSysClkDiv++) {
/* find first sysclock divisor that isn't higher than 2.5 MHz
clock */
if (AHB_CLK_FREQ /
PHYClockDivisors[nIndexSysClkDiv].unSysClkDivisor <=
unMaxMDIOClk) {
unClks = PHYClockDivisors[nIndexSysClkDiv].unClks;
break;
}
}
DEBUG_ARGS2 (DEBUG_INIT,
"Taking MDIO Clock bit mask 0x%0x for max clock %i\n",
unClks, unMaxMDIOClk);
/* return greatest divisor */
return unClks;
}
/***********************************************************************
* @Function: ns9750_mii_poll_busy
* @Return: 0 if timed out otherwise the remaing timeout
* @Descr: waits until the MII has completed a command or it times out
* code may be interrupted by hard interrupts.
* It is not checked what happens on multiple actions when
* the first is still being busy and we timeout.
***********************************************************************/
static unsigned int ns9750_mii_poll_busy (void)
{
unsigned int unTimeout = 10000;
DEBUG_FN (DEBUG_MII_LOW);
while (((*get_eth_reg_addr (NS9750_ETH_MIND) & NS9750_ETH_MIND_BUSY)
== NS9750_ETH_MIND_BUSY) && unTimeout)
unTimeout--;
return unTimeout;
}

2
include/configs/ns9750dev.h
Unescape View File

@ -55,7 +55,6 @@
* Hardware drivers
*/
#define CONFIG_NS9750_UART 1 /* use on-chip UART */
#define CONFIG_DRIVER_NS9750_ETHERNET 1 /* use on-chip ethernet */
/*
* select serial console configuration
@ -86,7 +85,6 @@
#define CONFIG_CMD_LOADB
#define CONFIG_CMD_LOADS
#define CONFIG_CMD_MEMORY
#define CONFIG_CMD_NET
#define CONFIG_CMD_PING

298
include/ns9750_eth.h
Unescape View File

@ -1,298 +0,0 @@
/***********************************************************************
*
* Copyright (C) 2004 by FS Forth-Systeme GmbH.
* All rights reserved.
*
* $Id: ns9750_eth.h,v 1.2 2004/02/24 13:25:39 mpietrek Exp $
* @Author: Markus Pietrek
* @References: [1] NS9750 Hardware Reference, December 2003
* [2] Intel LXT971 Datasheet #249414 Rev. 02
* [3] NS7520 Linux Ethernet Driver
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
***********************************************************************/
#ifndef FS_NS9750_ETH_H
#define FS_NS9750_ETH_H
#ifdef CONFIG_DRIVER_NS9750_ETHERNET
#include <miiphy.h>
#include "lxt971a.h"
#define NS9750_ETH_MODULE_BASE (0xA0600000)
#define get_eth_reg_addr(c) \
((volatile unsigned int*) ( NS9750_ETH_MODULE_BASE+(unsigned int) (c)))
#define NS9750_ETH_EGCR1 (0x0000)
#define NS9750_ETH_EGCR2 (0x0004)
#define NS9750_ETH_EGSR (0x0008)
#define NS9750_ETH_FIFORX (0x000C)
#define NS9750_ETH_FIFOTX (0x0010)
#define NS9750_ETH_FIFOTXS (0x0014)
#define NS9750_ETH_ETSR (0x0018)
#define NS9750_ETH_ERSR (0x001C)
#define NS9750_ETH_MAC1 (0x0400)
#define NS9750_ETH_MAC2 (0x0404)
#define NS9750_ETH_IPGT (0x0408)
#define NS9750_ETH_IPGR (0x040C)
#define NS9750_ETH_CLRT (0x0410)
#define NS9750_ETH_MAXF (0x0414)
#define NS9750_ETH_SUPP (0x0418)
#define NS9750_ETH_TEST (0x041C)
#define NS9750_ETH_MCFG (0x0420)
#define NS9750_ETH_MCMD (0x0424)
#define NS9750_ETH_MADR (0x0428)
#define NS9750_ETH_MWTD (0x042C)
#define NS9750_ETH_MRDD (0x0430)
#define NS9750_ETH_MIND (0x0434)
#define NS9750_ETH_SA1 (0x0440)
#define NS9750_ETH_SA2 (0x0444)
#define NS9750_ETH_SA3 (0x0448)
#define NS9750_ETH_SAFR (0x0500)
#define NS9750_ETH_HT1 (0x0504)
#define NS9750_ETH_HT2 (0x0508)
#define NS9750_ETH_STAT_BASE (0x0680)
#define NS9750_ETH_RXAPTR (0x0A00)
#define NS9750_ETH_RXBPTR (0x0A04)
#define NS9750_ETH_RXCPTR (0x0A08)
#define NS9750_ETH_RXDPTR (0x0A0C)
#define NS9750_ETH_EINTR (0x0A10)
#define NS9750_ETH_EINTREN (0x0A14)
#define NS9750_ETH_TXPTR (0x0A18)
#define NS9750_ETH_TXRPTR (0x0A1C)
#define NS9750_ETH_TXERBD (0x0A20)
#define NS9750_ETH_TXSPTR (0x0A24)
#define NS9750_ETH_RXAOFF (0x0A28)
#define NS9750_ETH_RXBOFF (0x0A2C)
#define NS9750_ETH_RXCOFF (0x0A30)
#define NS9750_ETH_RXDOFF (0x0A34)
#define NS9750_ETH_TXOFF (0x0A38)
#define NS9750_ETH_RXFREE (0x0A3C)
#define NS9750_ETH_TXBD (0x1000)
/* register bit fields */
#define NS9750_ETH_EGCR1_ERX (0x80000000)
#define NS9750_ETH_EGCR1_ERXDMA (0x40000000)
#define NS9750_ETH_EGCR1_ERXSHT (0x10000000)
#define NS9750_ETH_EGCR1_ERXSIZ (0x08000000)
#define NS9750_ETH_EGCR1_ETXSIZ (0x04000000)
#define NS9750_ETH_EGCR1_ETXDIAG (0x02000000)
#define NS9750_ETH_EGCR1_ERXBAD (0x01000000)
#define NS9750_ETH_EGCR1_ETX (0x00800000)
#define NS9750_ETH_EGCR1_ETXDMA (0x00400000)
#define NS9750_ETH_EGCR1_ETXWM (0x00200000)
#define NS9750_ETH_EGCR1_ERXADV (0x00100000)
#define NS9750_ETH_EGCR1_ERXINIT (0x00080000)
#define NS9750_ETH_EGCR1_PHY_MODE_MA (0x0000C000)
#define NS9750_ETH_EGCR1_PHY_MODE_MII (0x00008000)
#define NS9750_ETH_EGCR1_PHY_MODE_RMII (0x00004000)
#define NS9750_ETH_EGCR1_RXCINV (0x00001000)
#define NS9750_ETH_EGCR1_TXCINV (0x00000800)
#define NS9750_ETH_EGCR1_RXALIGN (0x00000400)
#define NS9750_ETH_EGCR1_MAC_HRST (0x00000200)
#define NS9750_ETH_EGCR1_ITXA (0x00000100)
#define NS9750_ETH_EGCR2_TPTV_MA (0xFFFF0000)
#define NS9750_ETH_EGCR2_TPCF (0x00000040)
#define NS9750_ETH_EGCR2_THPDF (0x00000020)
#define NS9750_ETH_EGCR2_TCLER (0x00000008)
#define NS9750_ETH_EGCR2_AUTOZ (0x00000004)
#define NS9750_ETH_EGCR2_CLRCNT (0x00000002)
#define NS9750_ETH_EGCR2_STEN (0x00000001)
#define NS9750_ETH_EGSR_RXINIT (0x00100000)
#define NS9750_ETH_EGSR_TXFIFONF (0x00080000)
#define NS9750_ETH_EGSR_TXFIFOH (0x00040000)
#define NS9750_ETH_EGSR_TXFIFOE (0x00010000)
#define NS9750_ETH_FIFOTXS_ALL (0x00000055)
#define NS9750_ETH_FIFOTXS_3 (0x000000d5)
#define NS9750_ETH_FIFOTXS_2 (0x00000035)
#define NS9750_ETH_FIFOTXS_1 (0x0000000D)
#define NS9750_ETH_FIFOTXS_0 (0x00000003)
#define NS9750_ETH_ETSR_TXOK (0x00008000)
#define NS9750_ETH_ETSR_TXBR (0x00004000)
#define NS9750_ETH_ETSR_TXMC (0x00002000)
#define NS9750_ETH_ETSR_TXAL (0x00001000)
#define NS9750_ETH_ETSR_TXAED (0x00000800)
#define NS9750_ETH_ETSR_TXAEC (0x00000400)
#define NS9750_ETH_ETSR_TXAUR (0x00000200)
#define NS9750_ETH_ETSR_TXAJ (0x00000100)
#define NS9750_ETH_ETSR_TXDEF (0x00000040)
#define NS9750_ETH_ETSR_TXCRC (0x00000020)
#define NS9750_ETH_ETSR_TXCOLC (0x0000000F)
#define NS9750_ETH_ERSR_RXSIZE_MA (0x0FFF0000)
#define NS9750_ETH_ERSR_RXCE (0x00008000)
#define NS9750_ETH_ERSR_RXDV (0x00004000)
#define NS9750_ETH_ERSR_RXOK (0x00002000)
#define NS9750_ETH_ERSR_RXBR (0x00001000)
#define NS9750_ETH_ERSR_RXMC (0x00000800)
#define NS9750_ETH_ERSR_RXCRC (0x00000400)
#define NS9750_ETH_ERSR_RXDR (0x00000200)
#define NS9750_ETH_ERSR_RXCV (0x00000100)
#define NS9750_ETH_ERSR_RXSHT (0x00000040)
#define NS9750_ETH_MAC1_SRST (0x00008000)
#define NS9750_ETH_MAC1_SIMMRST (0x00004000)
#define NS9750_ETH_MAC1_RPEMCSR (0x00000800)
#define NS9750_ETH_MAC1_RPERFUN (0x00000400)
#define NS9750_ETH_MAC1_RPEMCST (0x00000200)
#define NS9750_ETH_MAC1_RPETFUN (0x00000100)
#define NS9750_ETH_MAC1_LOOPBK (0x00000010)
#define NS9750_ETH_MAC1_TXFLOW (0x00000008)
#define NS9750_ETH_MAC1_RXFLOW (0x00000004)
#define NS9750_ETH_MAC1_PALLRX (0x00000002)
#define NS9750_ETH_MAC1_RXEN (0x00000001)
#define NS9750_ETH_MAC2_EDEFER (0x00004000)
#define NS9750_ETH_MAC2_BACKP (0x00002000)
#define NS9750_ETH_MAC2_NOBO (0x00001000)
#define NS9750_ETH_MAC2_LONGP (0x00000200)
#define NS9750_ETH_MAC2_PUREP (0x00000100)
#define NS9750_ETH_MAC2_AUTOP (0x00000080)
#define NS9750_ETH_MAC2_VLANP (0x00000040)
#define NS9750_ETH_MAC2_PADEN (0x00000020)
#define NS9750_ETH_MAC2_CRCEN (0x00000010)
#define NS9750_ETH_MAC2_DELCRC (0x00000008)
#define NS9750_ETH_MAC2_HUGE (0x00000004)
#define NS9750_ETH_MAC2_FLENC (0x00000002)
#define NS9750_ETH_MAC2_FULLD (0x00000001)
#define NS9750_ETH_IPGT_MA (0x0000007F)
#define NS9750_ETH_IPGR_IPGR1 (0x00007F00)
#define NS9750_ETH_IPGR_IPGR2 (0x0000007F)
#define NS9750_ETH_CLRT_CWIN (0x00003F00)
#define NS9750_ETH_CLRT_RETX (0x0000000F)
#define NS9750_ETH_MAXF_MAXF (0x0000FFFF)
#define NS9750_ETH_SUPP_RPERMII (0x00008000)
#define NS9750_ETH_SUPP_SPEED (0x00000080)
#define NS9750_ETH_TEST_TBACK (0x00000004)
#define NS9750_ETH_TEST_TPAUSE (0x00000002)
#define NS9750_ETH_TEST_SPQ (0x00000001)
#define NS9750_ETH_MCFG_RMIIM (0x00008000)
#define NS9750_ETH_MCFG_CLKS_MA (0x0000001C)
#define NS9750_ETH_MCFG_CLKS_4 (0x00000004)
#define NS9750_ETH_MCFG_CLKS_6 (0x00000008)
#define NS9750_ETH_MCFG_CLKS_8 (0x0000000C)
#define NS9750_ETH_MCFG_CLKS_10 (0x00000010)
#define NS9750_ETH_MCFG_CLKS_20 (0x00000014)
#define NS9750_ETH_MCFG_CLKS_30 (0x00000018)
#define NS9750_ETH_MCFG_CLKS_40 (0x0000001C)
#define NS9750_ETH_MCFG_SPRE (0x00000002)
#define NS9750_ETH_MCFG_SCANI (0x00000001)
#define NS9750_ETH_MCMD_SCAN (0x00000002)
#define NS9750_ETH_MCMD_READ (0x00000001)
#define NS9750_ETH_MADR_DADR_MA (0x00001F00)
#define NS9750_ETH_MADR_RADR_MA (0x0000001F)
#define NS9750_ETH_MWTD_MA (0x0000FFFF)
#define NS9750_ETH_MRRD_MA (0x0000FFFF)
#define NS9750_ETH_MIND_MIILF (0x00000008)
#define NS9750_ETH_MIND_NVALID (0x00000004)
#define NS9750_ETH_MIND_SCAN (0x00000002)
#define NS9750_ETH_MIND_BUSY (0x00000001)
#define NS9750_ETH_SA1_OCTET1_MA (0x0000FF00)
#define NS9750_ETH_SA1_OCTET2_MA (0x000000FF)
#define NS9750_ETH_SA2_OCTET3_MA (0x0000FF00)
#define NS9750_ETH_SA2_OCTET4_MA (0x000000FF)
#define NS9750_ETH_SA3_OCTET5_MA (0x0000FF00)
#define NS9750_ETH_SA3_OCTET6_MA (0x000000FF)
#define NS9750_ETH_SAFR_PRO (0x00000008)
#define NS9750_ETH_SAFR_PRM (0x00000004)
#define NS9750_ETH_SAFR_PRA (0x00000002)
#define NS9750_ETH_SAFR_BROAD (0x00000001)
#define NS9750_ETH_HT1_MA (0x0000FFFF)
#define NS9750_ETH_HT2_MA (0x0000FFFF)
/* also valid for EINTREN */
#define NS9750_ETH_EINTR_RXOVL_DATA (0x02000000)
#define NS9750_ETH_EINTR_RXOVL_STAT (0x01000000)
#define NS9750_ETH_EINTR_RXBUFC (0x00800000)
#define NS9750_ETH_EINTR_RXDONEA (0x00400000)
#define NS9750_ETH_EINTR_RXDONEB (0x00200000)
#define NS9750_ETH_EINTR_RXDONEC (0x00100000)
#define NS9750_ETH_EINTR_RXDONED (0x00080000)
#define NS9750_ETH_EINTR_RXNOBUF (0x00040000)
#define NS9750_ETH_EINTR_RXBUFFUL (0x00020000)
#define NS9750_ETH_EINTR_RXBR (0x00010000)
#define NS9750_ETH_EINTR_STOVFL (0x00000040)
#define NS9750_ETH_EINTR_TXPAUSE (0x00000020)
#define NS9750_ETH_EINTR_TXBUFC (0x00000010)
#define NS9750_ETH_EINTR_TXBUFNR (0x00000008)
#define NS9750_ETH_EINTR_TXDONE (0x00000004)
#define NS9750_ETH_EINTR_TXERR (0x00000002)
#define NS9750_ETH_EINTR_TXIDLE (0x00000001)
#define NS9750_ETH_EINTR_RX_MA \
(NS9750_ETH_EINTR_RXOVL_DATA | \
NS9750_ETH_EINTR_RXOVL_STAT | \
NS9750_ETH_EINTR_RXBUFC | \
NS9750_ETH_EINTR_RXDONEA | \
NS9750_ETH_EINTR_RXDONEB | \
NS9750_ETH_EINTR_RXDONEC | \
NS9750_ETH_EINTR_RXDONED | \
NS9750_ETH_EINTR_RXNOBUF | \
NS9750_ETH_EINTR_RXBUFFUL | \
NS9750_ETH_EINTR_RXBR )
#define NS9750_ETH_EINTR_TX_MA \
(NS9750_ETH_EINTR_TXPAUSE | \
NS9750_ETH_EINTR_TXBUFC | \
NS9750_ETH_EINTR_TXBUFNR | \
NS9750_ETH_EINTR_TXDONE | \
NS9750_ETH_EINTR_TXERR | \
NS9750_ETH_EINTR_TXIDLE)
/* for TXPTR, TXRPTR, TXERBD and TXSPTR */
#define NS9750_ETH_TXPTR_MA (0x000000FF)
/* for RXAOFF, RXBOFF, RXCOFF and RXDOFF */
#define NS9750_ETH_RXOFF_MA (0x000007FF)
#define NS9750_ETH_TXOFF_MA (0x000003FF)
#define NS9750_ETH_RXFREE_D (0x00000008)
#define NS9750_ETH_RXFREE_C (0x00000004)
#define NS9750_ETH_RXFREE_B (0x00000002)
#define NS9750_ETH_RXFREE_A (0x00000001)
#ifndef NS9750_ETH_PHY_ADDRESS
# define NS9750_ETH_PHY_ADDRESS (0x0001) /* suitable for UNC20 */
#endif /* NETARM_ETH_PHY_ADDRESS */
#endif /* CONFIG_DRIVER_NS9750_ETHERNET */
#endif /* FS_NS9750_ETH_H */
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