diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/3c589.c | 522 | ||||
| -rw-r--r-- | drivers/bcm570x_autoneg.c | 444 | ||||
| -rw-r--r-- | drivers/cs8900.h | 256 | ||||
| -rw-r--r-- | drivers/natsemi.c | 881 | ||||
| -rw-r--r-- | drivers/nicext.h | 110 | ||||
| -rw-r--r-- | drivers/ns8382x.c | 863 | ||||
| -rw-r--r-- | drivers/smc91111.c | 1383 | ||||
| -rw-r--r-- | drivers/smc91111.h | 619 |
8 files changed, 5078 insertions, 0 deletions
diff --git a/drivers/3c589.c b/drivers/3c589.c new file mode 100644 index 0000000..541f93b --- /dev/null +++ b/drivers/3c589.c @@ -0,0 +1,522 @@ +/*------------------------------------------------------------------------ + . 3c589.c + . This is a driver for 3Com's 3C589 (Etherlink III) PCMCIA Ethernet device. + . + . (C) Copyright 2002 + . Sysgo Real-Time Solutions, GmbH <www.elinos.com> + . Rolf Offermanns <rof@sysgo.de> + . + . 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 <command.h> +#include <net.h> + +#ifdef CONFIG_DRIVER_3C589 + +#include "3c589.h" + + +/* Use power-down feature of the chip */ +#define POWER_DOWN 0 + +#define NO_AUTOPROBE + +static const char version[] = + "Your ad here! :P\n"; + + +#undef EL_DEBUG + +typedef unsigned char byte; +typedef unsigned short word; +typedef unsigned long int dword; +/*------------------------------------------------------------------------ + . + . Configuration options, for the experienced user to change. + . + -------------------------------------------------------------------------*/ + +/* + . Wait time for memory to be free. This probably shouldn't be + . tuned that much, as waiting for this means nothing else happens + . in the system +*/ +#define MEMORY_WAIT_TIME 16 + + +#if (EL_DEBUG > 2 ) +#define PRINTK3(args...) printf(args) +#else +#define PRINTK3(args...) +#endif + +#if EL_DEBUG > 1 +#define PRINTK2(args...) printf(args) +#else +#define PRINTK2(args...) +#endif + +#ifdef EL_DEBUG +#define PRINTK(args...) printf(args) +#else +#define PRINTK(args...) +#endif + +#define outb(args...) mmio_outb(args) +#define mmio_outb(value, addr) (*((volatile byte *)(addr)) = value) + +#define inb(args...) mmio_inb(args) +#define mmio_inb(addr) (*((volatile byte *)(addr))) + +#define outw(args...) mmio_outw(args) +#define mmio_outw(value, addr) (*((volatile word *)(addr)) = value) + +#define inw(args...) mmio_inw(args) +#define mmio_inw(addr) (*((volatile word *)(addr))) + +#define outsw(args...) mmio_outsw(args) +#define mmio_outsw(r,b,l) ({ int __i; \ + word *__b2; \ + __b2 = (word *) b; \ + for (__i = 0; __i < l; __i++) { \ + mmio_outw( *(__b2 + __i), r); \ + } \ + }) + +#define insw(args...) mmio_insw(args) +#define mmio_insw(r,b,l) ({ int __i ; \ + word *__b2; \ + __b2 = (word *) b; \ + for (__i = 0; __i < l; __i++) { \ + *(__b2 + __i) = mmio_inw(r); \ + mmio_inw(0); \ + }; \ + }) + +/*------------------------------------------------------------------------ + . + . The internal workings of the driver. If you are changing anything + . here with the 3Com stuff, you should have the datasheet and know + . what you are doing. + . + -------------------------------------------------------------------------*/ +#define EL_BASE_ADDR 0x20000000 + + +/* Offsets from base I/O address. */ +#define EL3_DATA 0x00 +#define EL3_TIMER 0x0a +#define EL3_CMD 0x0e +#define EL3_STATUS 0x0e + +#define EEPROM_READ 0x0080 + +#define EL3WINDOW(win_num) mmio_outw(SelectWindow + (win_num), EL_BASE_ADDR + EL3_CMD) + +/* The top five bits written to EL3_CMD are a command, the lower + 11 bits are the parameter, if applicable. */ +enum c509cmd { + TotalReset = 0<<11, SelectWindow = 1<<11, StartCoax = 2<<11, + RxDisable = 3<<11, RxEnable = 4<<11, RxReset = 5<<11, RxDiscard = 8<<11, + TxEnable = 9<<11, TxDisable = 10<<11, TxReset = 11<<11, + FakeIntr = 12<<11, AckIntr = 13<<11, SetIntrEnb = 14<<11, + SetStatusEnb = 15<<11, SetRxFilter = 16<<11, SetRxThreshold = 17<<11, + SetTxThreshold = 18<<11, SetTxStart = 19<<11, StatsEnable = 21<<11, + StatsDisable = 22<<11, StopCoax = 23<<11, +}; + +enum c509status { + IntLatch = 0x0001, AdapterFailure = 0x0002, TxComplete = 0x0004, + TxAvailable = 0x0008, RxComplete = 0x0010, RxEarly = 0x0020, + IntReq = 0x0040, StatsFull = 0x0080, CmdBusy = 0x1000 +}; + +/* The SetRxFilter command accepts the following classes: */ +enum RxFilter { + RxStation = 1, RxMulticast = 2, RxBroadcast = 4, RxProm = 8 +}; + +/* Register window 1 offsets, the window used in normal operation. */ +#define TX_FIFO 0x00 +#define RX_FIFO 0x00 +#define RX_STATUS 0x08 +#define TX_STATUS 0x0B +#define TX_FREE 0x0C /* Remaining free bytes in Tx buffer. */ + + +/* + Read a word from the EEPROM using the regular EEPROM access register. + Assume that we are in register window zero. +*/ +static word read_eeprom(dword ioaddr, int index) +{ + int i; + outw(EEPROM_READ + index, ioaddr + 0xa); + /* Reading the eeprom takes 162 us */ + for (i = 1620; i >= 0; i--) + if ((inw(ioaddr + 10) & EEPROM_BUSY) == 0) + break; + return inw(ioaddr + 0xc); +} + +static void el_get_mac_addr( unsigned char *mac_addr ) +{ + int i; + union + { + word w; + unsigned char b[2]; + } wrd; + unsigned char old_window = inw( EL_BASE_ADDR + EL3_STATUS ) >> 13; + GO_WINDOW(0); + VX_BUSY_WAIT; + for (i = 0; i < 3; i++) + { + wrd.w = read_eeprom(EL_BASE_ADDR, 0xa+i); +#ifdef __BIG_ENDIAN + mac_addr[2*i] = wrd.b[0]; + mac_addr[2*i+1] = wrd.b[1]; +#else + mac_addr[2*i] = wrd.b[1]; + mac_addr[2*i+1] = wrd.b[0]; +#endif + } + GO_WINDOW(old_window); + VX_BUSY_WAIT; +} + + +#if EL_DEBUG > 1 +static void print_packet( byte * buf, int length ) +{ + int i; + int remainder; + int lines; + + PRINTK2("Packet of length %d \n", length ); + + lines = length / 16; + remainder = length % 16; + + for ( i = 0; i < lines ; i ++ ) { + int cur; + + for ( cur = 0; cur < 8; cur ++ ) { + byte a, b; + + a = *(buf ++ ); + b = *(buf ++ ); + PRINTK2("%02x%02x ", a, b ); + } + PRINTK2("\n"); + } + for ( i = 0; i < remainder/2 ; i++ ) { + byte a, b; + + a = *(buf ++ ); + b = *(buf ++ ); + PRINTK2("%02x%02x ", a, b ); + } + PRINTK2("\n"); +} +#endif /* EL_DEBUG > 1 */ + + + +/************************************************************************** +ETH_RESET - Reset adapter +***************************************************************************/ +static void el_reset(bd_t *bd) +{ + /*********************************************************** + Reset 3Com 595 card + *************************************************************/ + /* QUICK HACK + * - adjust timing for 3c589 + * - enable io for PCMCIA */ + outw(0x0004, 0xa0000018); + udelay(100); + outw(0x0041, 0x28010000); + udelay(100); + + /* issue global reset */ + outw(GLOBAL_RESET, BASE + VX_COMMAND); + + /* must wait for at least 1ms */ + udelay(100000000); + + /* set mac addr */ + { + unsigned char *mac_addr = bd->bi_enetaddr; + int i; + + el_get_mac_addr( mac_addr ); + + GO_WINDOW(2); + VX_BUSY_WAIT; + + printf("3C589 MAC Addr.: "); + for (i = 0; i < 6; i++) + { + printf("%02x", mac_addr[i]); + outb(mac_addr[i], BASE + VX_W2_ADDR_0 + i); + VX_BUSY_WAIT; + } + printf("\n\n"); + } + + /* set RX filter */ + outw(SET_RX_FILTER | FIL_INDIVIDUAL | FIL_BRDCST, BASE + VX_COMMAND); + VX_BUSY_WAIT; + + + /* set irq mask and read_zero */ + outw(SET_RD_0_MASK | S_CARD_FAILURE | S_RX_COMPLETE | + S_TX_COMPLETE | S_TX_AVAIL, BASE + VX_COMMAND); + VX_BUSY_WAIT; + + outw(SET_INTR_MASK | S_CARD_FAILURE | S_RX_COMPLETE | + S_TX_COMPLETE | S_TX_AVAIL, BASE + VX_COMMAND); + VX_BUSY_WAIT; + + /* enable TP Linkbeat */ + GO_WINDOW(4); + VX_BUSY_WAIT; + + outw( ENABLE_UTP, BASE + VX_W4_MEDIA_TYPE); + VX_BUSY_WAIT; + + +/* + * Attempt to get rid of any stray interrupts that occured during + * configuration. On the i386 this isn't possible because one may + * already be queued. However, a single stray interrupt is + * unimportant. + */ + + outw(ACK_INTR | 0xff, BASE + VX_COMMAND); + VX_BUSY_WAIT; + + /* enable TX and RX */ + outw( RX_ENABLE, BASE + VX_COMMAND ); + VX_BUSY_WAIT; + + outw( TX_ENABLE, BASE + VX_COMMAND ); + VX_BUSY_WAIT; + + + /* print the diag. regs. */ + PRINTK2("Diag. Regs\n"); + PRINTK2("--> MEDIA_TYPE: %04x\n", inw(BASE + VX_W4_MEDIA_TYPE)); + PRINTK2("--> NET_DIAG: %04x\n", inw(BASE + VX_W4_NET_DIAG)); + PRINTK2("--> FIFO_DIAG: %04x\n", inw(BASE + VX_W4_FIFO_DIAG)); + PRINTK2("--> CTRLR_STATUS: %04x\n", inw(BASE + VX_W4_CTRLR_STATUS)); + PRINTK2("\n\n"); + + /* enter working mode */ + GO_WINDOW(1); + VX_BUSY_WAIT; + + /* wait for another 1ms */ + udelay(100000000); +} + + +/*----------------------------------------------------------------- + . + . The driver can be entered at any of the following entry points. + . + .------------------------------------------------------------------ */ + +extern int eth_init(bd_t *bd); +extern void eth_halt(void); +extern int eth_rx(void); +extern int eth_send(volatile void *packet, int length); + + +/* + ------------------------------------------------------------ + . + . Internal routines + . + ------------------------------------------------------------ +*/ + +int eth_init(bd_t *bd) +{ + el_reset(bd); + return 0; +} + +void eth_halt() { + return; +} + +#define EDEBUG 1 + + +/************************************************************************** +ETH_POLL - Wait for a frame +***************************************************************************/ + +int eth_rx() +{ + word status, rx_status, packet_size; + + VX_BUSY_WAIT; + + status = inw( BASE + VX_STATUS ); + + if ( (status & S_RX_COMPLETE) == 0 ) return 0; /* nothing to do */ + + /* Packet waiting -> check RX_STATUS */ + rx_status = inw( BASE + VX_W1_RX_STATUS ); + + if ( rx_status & ERR_RX ) + { + /* error in packet -> discard */ + PRINTK("[ERROR] Invalid packet -> discarding\n"); + PRINTK("-- error code 0x%02x\n", rx_status & ERR_MASK); + PRINTK("-- rx bytes 0x%04d\n", rx_status & ((1<<11) - 1)); + PRINTK("[ERROR] Invalid packet -> discarding\n"); + outw( RX_DISCARD_TOP_PACK, BASE + VX_COMMAND ); + return 0; + } + + /* correct pack. waiting in fifo */ + packet_size = rx_status & RX_BYTES_MASK; + + PRINTK("Correct packet waiting in fifo, size: %d\n", packet_size); + + { + volatile word *packet_start = (word *)(BASE + VX_W1_RX_PIO_RD_1); + word *RcvBuffer = (word *)(NetRxPackets[0]); + int wcount = 0; + + for (wcount = 0; wcount < (packet_size >> 1); wcount++) + { + *RcvBuffer++ = *(packet_start); + } + + /* handle odd packets */ + if ( packet_size & 1 ) + { + *RcvBuffer++ = *(packet_start); + } + } + + /* fifo should now be empty (besides the padding bytes) */ + if ( ((*((word *)(BASE + VX_W1_RX_STATUS))) & RX_BYTES_MASK) > 3 ) + { + PRINTK("[ERROR] Fifo not empty after packet read (remaining pkts: %d)\n", + (((*(word *)(BASE + VX_W1_RX_STATUS))) & RX_BYTES_MASK)); + } + + /* discard packet */ + *((word *)(BASE + VX_COMMAND)) = RX_DISCARD_TOP_PACK; + + /* Pass Packets to upper Layer */ + NetReceive(NetRxPackets[0], packet_size); + return packet_size; +} + + + +/************************************************************************** +ETH_TRANSMIT - Transmit a frame +***************************************************************************/ +static char padmap[] = { + 0, 3, 2, 1}; + + +int eth_send(volatile void *packet, int length) { + int pad; + int status; + volatile word *buf = (word *)packet; + int dummy = 0; + + /* padding stuff */ + pad = padmap[length & 3]; + + PRINTK("eth_send(), length: %d\n", length); + /* drop acknowledgements */ + while(( status=inb(EL_BASE_ADDR + VX_W1_TX_STATUS) )& TXS_COMPLETE ) { + if(status & (TXS_UNDERRUN|TXS_MAX_COLLISION|TXS_STATUS_OVERFLOW)) { + outw(TX_RESET, EL_BASE_ADDR + VX_COMMAND); + outw(TX_ENABLE, EL_BASE_ADDR + VX_COMMAND); + PRINTK("Bad status, resetting and reenabling transmitter\n"); + } + + outb(0x0, EL_BASE_ADDR + VX_W1_TX_STATUS); + } + + + while (inw(EL_BASE_ADDR + VX_W1_FREE_TX) < length + pad + 4) { + /* no room in FIFO */ + if (dummy == 0) + { + PRINTK("No room in FIFO, waiting...\n"); + dummy++; + } + + } + + PRINTK(" ---> FIFO ready\n"); + + + outw(length, EL_BASE_ADDR + VX_W1_TX_PIO_WR_1); + + /* Second dword meaningless */ + outw(0x0, EL_BASE_ADDR + VX_W1_TX_PIO_WR_1); + +#if EL_DEBUG > 1 + print_packet((byte *)buf, length); +#endif + + /* write packet */ + { + unsigned int i, totw; + + totw = ((length + 1) >> 1); + PRINTK("Buffer: (totw = %d)\n", totw); + for (i = 0; i < totw; i++) { + outw( *(buf+i), EL_BASE_ADDR + VX_W1_TX_PIO_WR_1); + udelay(10); + } + if(totw & 1) + { /* pad to double word length */ + outw( 0, EL_BASE_ADDR + VX_W1_TX_PIO_WR_1); + udelay(10); + } + PRINTK("\n\n"); + } + + /* wait for Tx complete */ + PRINTK("Waiting for Tx to complete...\n"); + while(((status = inw(EL_BASE_ADDR + VX_STATUS)) & S_COMMAND_IN_PROGRESS) != 0) + { + udelay(10); + } + PRINTK(" ---> Tx completed, status = 0x%04x\n", status); + + return length; +} + + + +#endif /* CONFIG_DRIVER_3C589 */ diff --git a/drivers/bcm570x_autoneg.c b/drivers/bcm570x_autoneg.c new file mode 100644 index 0000000..1818c6a --- /dev/null +++ b/drivers/bcm570x_autoneg.c @@ -0,0 +1,444 @@ +/******************************************************************************/ +/* */ +/* Broadcom BCM5700 Linux Network Driver, Copyright (c) 2001 Broadcom */ +/* Corporation. */ +/* All rights reserved. */ +/* */ +/* 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, located in the file LICENSE. */ +/* */ +/* History: */ +/******************************************************************************/ +#if !defined(CONFIG_NET_MULTI) +#if INCLUDE_TBI_SUPPORT +#include "bcm570x_autoneg.h" +#include "bcm570x_mm.h" + + + +/******************************************************************************/ +/* Description: */ +/* */ +/* Return: */ +/******************************************************************************/ +void +MM_AnTxConfig( + PAN_STATE_INFO pAnInfo) +{ + PLM_DEVICE_BLOCK pDevice; + + pDevice = (PLM_DEVICE_BLOCK) pAnInfo->pContext; + + REG_WR(pDevice, MacCtrl.TxAutoNeg, (LM_UINT32) pAnInfo->TxConfig.AsUSHORT); + + pDevice->MacMode |= MAC_MODE_SEND_CONFIGS; + REG_WR(pDevice, MacCtrl.Mode, pDevice->MacMode); +} + + + +/******************************************************************************/ +/* Description: */ +/* */ +/* Return: */ +/******************************************************************************/ +void +MM_AnTxIdle( + PAN_STATE_INFO pAnInfo) +{ + PLM_DEVICE_BLOCK pDevice; + + pDevice = (PLM_DEVICE_BLOCK) pAnInfo->pContext; + + pDevice->MacMode &= ~MAC_MODE_SEND_CONFIGS; + REG_WR(pDevice, MacCtrl.Mode, pDevice->MacMode); +} + + + +/******************************************************************************/ +/* Description: */ +/* */ +/* Return: */ +/******************************************************************************/ +char +MM_AnRxConfig( + PAN_STATE_INFO pAnInfo, + unsigned short *pRxConfig) +{ + PLM_DEVICE_BLOCK pDevice; + LM_UINT32 Value32; + char Retcode; + + Retcode = AN_FALSE; + + pDevice = (PLM_DEVICE_BLOCK) pAnInfo->pContext; + + Value32 = REG_RD(pDevice, MacCtrl.Status); + if(Value32 & MAC_STATUS_RECEIVING_CFG) + { + Value32 = REG_RD(pDevice, MacCtrl.RxAutoNeg); + *pRxConfig = (unsigned short) Value32; + + Retcode = AN_TRUE; + } + + return Retcode; +} + + + +/******************************************************************************/ +/* Description: */ +/* */ +/* Return: */ +/******************************************************************************/ +void +AutonegInit( + PAN_STATE_INFO pAnInfo) +{ + unsigned long j; + + for(j = 0; j < sizeof(AN_STATE_INFO); j++) + { + ((unsigned char *) pAnInfo)[j] = 0; + } + + /* Initialize the default advertisement register. */ + pAnInfo->mr_adv_full_duplex = 1; + pAnInfo->mr_adv_sym_pause = 1; + pAnInfo->mr_adv_asym_pause = 1; + pAnInfo->mr_an_enable = 1; +} + + + +/******************************************************************************/ +/* Description: */ +/* */ +/* Return: */ +/******************************************************************************/ +AUTONEG_STATUS +Autoneg8023z( + PAN_STATE_INFO pAnInfo) +{ + unsigned short RxConfig; + unsigned long Delta_us; + AUTONEG_STATUS AnRet; + + /* Get the current time. */ + if(pAnInfo->State == AN_STATE_UNKNOWN) + { + pAnInfo->RxConfig.AsUSHORT = 0; + pAnInfo->CurrentTime_us = 0; + pAnInfo->LinkTime_us = 0; + pAnInfo->AbilityMatchCfg = 0; + pAnInfo->AbilityMatchCnt = 0; + pAnInfo->AbilityMatch = AN_FALSE; + pAnInfo->IdleMatch = AN_FALSE; + pAnInfo->AckMatch = AN_FALSE; + } + + /* Increment the timer tick. This function is called every microsecon. */ +/* pAnInfo->CurrentTime_us++; */ + + /* Set the AbilityMatch, IdleMatch, and AckMatch flags if their */ + /* corresponding conditions are satisfied. */ + if(MM_AnRxConfig(pAnInfo, &RxConfig)) + { + if(RxConfig != pAnInfo->AbilityMatchCfg) + { + pAnInfo->AbilityMatchCfg = RxConfig; + pAnInfo->AbilityMatch = AN_FALSE; + pAnInfo->AbilityMatchCnt = 0; + } + else + { + pAnInfo->AbilityMatchCnt++; + if(pAnInfo->AbilityMatchCnt > 1) + { + pAnInfo->AbilityMatch = AN_TRUE; + pAnInfo->AbilityMatchCfg = RxConfig; + } + } + + if(RxConfig & AN_CONFIG_ACK) + { + pAnInfo->AckMatch = AN_TRUE; + } + else + { + pAnInfo->AckMatch = AN_FALSE; + } + + pAnInfo->IdleMatch = AN_FALSE; + } + else + { + pAnInfo->IdleMatch = AN_TRUE; + + pAnInfo->AbilityMatchCfg = 0; + pAnInfo->AbilityMatchCnt = 0; + pAnInfo->AbilityMatch = AN_FALSE; + pAnInfo->AckMatch = AN_FALSE; + + RxConfig = 0; + } + + /* Save the last Config. */ + pAnInfo->RxConfig.AsUSHORT = RxConfig; + + /* Default return code. */ + AnRet = AUTONEG_STATUS_OK; + + /* Autoneg state machine as defined in 802.3z section 37.3.1.5. */ + switch(pAnInfo->State) + { + case AN_STATE_UNKNOWN: + if(pAnInfo->mr_an_enable || pAnInfo->mr_restart_an) + { + pAnInfo->CurrentTime_us = 0; + pAnInfo->State = AN_STATE_AN_ENABLE; + } + + /* Fall through.*/ + + case AN_STATE_AN_ENABLE: + pAnInfo->mr_an_complete = AN_FALSE; + pAnInfo->mr_page_rx = AN_FALSE; + + if(pAnInfo->mr_an_enable) + { + pAnInfo->LinkTime_us = 0; + pAnInfo->AbilityMatchCfg = 0; + pAnInfo->AbilityMatchCnt = 0; + pAnInfo->AbilityMatch = AN_FALSE; + pAnInfo->IdleMatch = AN_FALSE; + pAnInfo->AckMatch = AN_FALSE; + + pAnInfo->State = AN_STATE_AN_RESTART_INIT; + } + else + { + pAnInfo->State = AN_STATE_DISABLE_LINK_OK; + } + break; + + case AN_STATE_AN_RESTART_INIT: + pAnInfo->LinkTime_us = pAnInfo->CurrentTime_us; + pAnInfo->mr_np_loaded = AN_FALSE; + + pAnInfo->TxConfig.AsUSHORT = 0; + MM_AnTxConfig(pAnInfo); + + AnRet = AUTONEG_STATUS_TIMER_ENABLED; + + pAnInfo->State = AN_STATE_AN_RESTART; + + /* Fall through.*/ + + case AN_STATE_AN_RESTART: + /* Get the current time and compute the delta with the saved */ + /* link timer. */ + Delta_us = pAnInfo->CurrentTime_us - pAnInfo->LinkTime_us; + if(Delta_us > AN_LINK_TIMER_INTERVAL_US) + { + pAnInfo->State = AN_STATE_ABILITY_DETECT_INIT; + } + else + { + AnRet = AUTONEG_STATUS_TIMER_ENABLED; + } + break; + + case AN_STATE_DISABLE_LINK_OK: + AnRet = AUTONEG_STATUS_DONE; + break; + + case AN_STATE_ABILITY_DETECT_INIT: + /* Note: in the state diagram, this variable is set to */ + /* mr_adv_ability<12>. Is this right?. */ + pAnInfo->mr_toggle_tx = AN_FALSE; + + /* Send the config as advertised in the advertisement register. */ + pAnInfo->TxConfig.AsUSHORT = 0; + pAnInfo->TxConfig.D5_FD = pAnInfo->mr_adv_full_duplex; + pAnInfo->TxConfig.D6_HD = pAnInfo->mr_adv_half_duplex; + pAnInfo->TxConfig.D7_PS1 = pAnInfo->mr_adv_sym_pause; + pAnInfo->TxConfig.D8_PS2 = pAnInfo->mr_adv_asym_pause; + pAnInfo->TxConfig.D12_RF1 = pAnInfo->mr_adv_remote_fault1; + pAnInfo->TxConfig.D13_RF2 = pAnInfo->mr_adv_remote_fault2; + pAnInfo->TxConfig.D15_NP = pAnInfo->mr_adv_next_page; + + MM_AnTxConfig(pAnInfo); + + pAnInfo->State = AN_STATE_ABILITY_DETECT; + + break; + + case AN_STATE_ABILITY_DETECT: + if(pAnInfo->AbilityMatch == AN_TRUE && + pAnInfo->RxConfig.AsUSHORT != 0) + { + pAnInfo->State = AN_STATE_ACK_DETECT_INIT; + } + + break; + + case AN_STATE_ACK_DETECT_INIT: + pAnInfo->TxConfig.D14_ACK = 1; + MM_AnTxConfig(pAnInfo); + + pAnInfo->State = AN_STATE_ACK_DETECT; + + /* Fall through. */ + + case AN_STATE_ACK_DETECT: + if(pAnInfo->AckMatch == AN_TRUE) + { + if((pAnInfo->RxConfig.AsUSHORT & ~AN_CONFIG_ACK) == + (pAnInfo->AbilityMatchCfg & ~AN_CONFIG_ACK)) + { + pAnInfo->State = AN_STATE_COMPLETE_ACK_INIT; + } + else + { + pAnInfo->State = AN_STATE_AN_ENABLE; + } + } + else if(pAnInfo->AbilityMatch == AN_TRUE && + pAnInfo->RxConfig.AsUSHORT == 0) + { + pAnInfo->State = AN_STATE_AN_ENABLE; + } + + break; + + case AN_STATE_COMPLETE_ACK_INIT: + /* Make sure invalid bits are not set. */ + if(pAnInfo->RxConfig.bits.D0 || pAnInfo->RxConfig.bits.D1 || + pAnInfo->RxConfig.bits.D2 || pAnInfo->RxConfig.bits.D3 || + pAnInfo->RxConfig.bits.D4 || pAnInfo->RxConfig.bits.D9 || + pAnInfo->RxConfig.bits.D10 || pAnInfo->RxConfig.bits.D11) + { + AnRet = AUTONEG_STATUS_FAILED; + break; + } + + /* Set up the link partner advertisement register. */ + pAnInfo->mr_lp_adv_full_duplex = pAnInfo->RxConfig.D5_FD; + pAnInfo->mr_lp_adv_half_duplex = pAnInfo->RxConfig.D6_HD; + pAnInfo->mr_lp_adv_sym_pause = pAnInfo->RxConfig.D7_PS1; + pAnInfo->mr_lp_adv_asym_pause = pAnInfo->RxConfig.D8_PS2; + pAnInfo->mr_lp_adv_remote_fault1 = pAnInfo->RxConfig.D12_RF1; + pAnInfo->mr_lp_adv_remote_fault2 = pAnInfo->RxConfig.D13_RF2; + pAnInfo->mr_lp_adv_next_page = pAnInfo->RxConfig.D15_NP; + + pAnInfo->LinkTime_us = pAnInfo->CurrentTime_us; + + pAnInfo->mr_toggle_tx = !pAnInfo->mr_toggle_tx; + pAnInfo->mr_toggle_rx = pAnInfo->RxConfig.bits.D11; + pAnInfo->mr_np_rx = pAnInfo->RxConfig.D15_NP; + pAnInfo->mr_page_rx = AN_TRUE; + + pAnInfo->State = AN_STATE_COMPLETE_ACK; + AnRet = AUTONEG_STATUS_TIMER_ENABLED; + + break; + + case AN_STATE_COMPLETE_ACK: + if(pAnInfo->AbilityMatch == AN_TRUE && + pAnInfo->RxConfig.AsUSHORT == 0) + { + pAnInfo->State = AN_STATE_AN_ENABLE; + break; + } + + Delta_us = pAnInfo->CurrentTime_us - pAnInfo->LinkTime_us; + + if(Delta_us > AN_LINK_TIMER_INTERVAL_US) + { + if(pAnInfo->mr_adv_next_page == 0 || + pAnInfo->mr_lp_adv_next_page == 0) + { + pAnInfo->State = AN_STATE_IDLE_DETECT_INIT; + } + else + { + if(pAnInfo->TxConfig.bits.D15 == 0 && + pAnInfo->mr_np_rx == 0) + { + pAnInfo->State = AN_STATE_IDLE_DETECT_INIT; + } + else + { + AnRet = AUTONEG_STATUS_FAILED; + } + } + } + + break; + + case AN_STATE_IDLE_DETECT_INIT: + pAnInfo->LinkTime_us = pAnInfo->CurrentTime_us; + + MM_AnTxIdle(pAnInfo); + + pAnInfo->State = AN_STATE_IDLE_DETECT; + + AnRet = AUTONEG_STATUS_TIMER_ENABLED; + + break; + + case AN_STATE_IDLE_DETECT: + if(pAnInfo->AbilityMatch == AN_TRUE && + pAnInfo->RxConfig.AsUSHORT == 0) + { + pAnInfo->State = AN_STATE_AN_ENABLE; + break; + } + + Delta_us = pAnInfo->CurrentTime_us - pAnInfo->LinkTime_us; + if(Delta_us > AN_LINK_TIMER_INTERVAL_US) + { +#if 0 +/* if(pAnInfo->IdleMatch == AN_TRUE) */ +/* { */ +#endif + pAnInfo->State = AN_STATE_LINK_OK; +#if 0 +/* } */ +/* else */ +/* { */ +/* AnRet = AUTONEG_STATUS_FAILED; */ +/* break; */ +/* } */ +#endif + } + + break; + + case AN_STATE_LINK_OK: + pAnInfo->mr_an_complete = AN_TRUE; + pAnInfo->mr_link_ok = AN_TRUE; + AnRet = AUTONEG_STATUS_DONE; + + break; + + case AN_STATE_NEXT_PAGE_WAIT_INIT: + break; + + case AN_STATE_NEXT_PAGE_WAIT: + break; + + default: + AnRet = AUTONEG_STATUS_FAILED; + break; + } + + return AnRet; +} +#endif /* INCLUDE_TBI_SUPPORT */ + +#endif /* !defined(CONFIG_NET_MULTI) */ diff --git a/drivers/cs8900.h b/drivers/cs8900.h new file mode 100644 index 0000000..0a35ba6 --- /dev/null +++ b/drivers/cs8900.h @@ -0,0 +1,256 @@ +/* + * Cirrus Logic CS8900A Ethernet + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger <mgroeger@sysgo.de> + * + * Copyright (C) 1999 Ben Williamson <benw@pobox.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is loaded into SRAM in bootstrap mode, where it waits + * for commands on UART1 to read and write memory, jump to code etc. + * A design goal for this program is to be entirely independent of the + * target board. Anything with a CL-PS7111 or EP7211 should be able to run + * this code in bootstrap mode. All the board specifics can be handled on + * the host. + * + * 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., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <asm/types.h> +#include <config.h> + +#ifdef CONFIG_DRIVER_CS8900 + +/* although the registers are 16 bit, they are 32-bit aligned on the + EDB7111. so we have to read them as 32-bit registers and ignore the + upper 16-bits. i'm not sure if this holds for the EDB7211. */ + +#ifdef CS8900_BUS16 + /* 16 bit aligned registers, 16 bit wide */ + #define CS8900_REG u16 + #define CS8900_OFF 0x02 + #define CS8900_BUS16_0 *(volatile u8 *)(CS8900_BASE+0x00) + #define CS8900_BUS16_1 *(volatile u8 *)(CS8900_BASE+0x01) +#elif CS8900_BUS32 + /* 32 bit aligned registers, 16 bit wide (we ignore upper 16 bits) */ + #define CS8900_REG u32 + #define CS8900_OFF 0x04 +#else + #error unknown bussize ... +#endif + +#define CS8900_RTDATA *(volatile CS8900_REG *)(CS8900_BASE+0x00*CS8900_OFF) +#define CS8900_TxCMD *(volatile CS8900_REG *)(CS8900_BASE+0x02*CS8900_OFF) +#define CS8900_TxLEN *(volatile CS8900_REG *)(CS8900_BASE+0x03*CS8900_OFF) +#define CS8900_ISQ *(volatile CS8900_REG *)(CS8900_BASE+0x04*CS8900_OFF) +#define CS8900_PPTR *(volatile CS8900_REG *)(CS8900_BASE+0x05*CS8900_OFF) +#define CS8900_PDATA *(volatile CS8900_REG *)(CS8900_BASE+0x06*CS8900_OFF) + + +#define ISQ_RxEvent 0x04 +#define ISQ_TxEvent 0x08 +#define ISQ_BufEvent 0x0C +#define ISQ_RxMissEvent 0x10 +#define ISQ_TxColEvent 0x12 +#define ISQ_EventMask 0x3F + +/* packet page register offsets */ + +/* bus interface registers */ +#define PP_ChipID 0x0000 /* Chip identifier - must be 0x630E */ +#define PP_ChipRev 0x0002 /* Chip revision, model codes */ + +#define PP_IntReg 0x0022 /* Interrupt configuration */ +#define PP_IntReg_IRQ0 0x0000 /* Use INTR0 pin */ +#define PP_IntReg_IRQ1 0x0001 /* Use INTR1 pin */ +#define PP_IntReg_IRQ2 0x0002 /* Use INTR2 pin */ +#define PP_IntReg_IRQ3 0x0003 /* Use INTR3 pin */ + +/* status and control registers */ + +#define PP_RxCFG 0x0102 /* Receiver configuration */ +#define PP_RxCFG_Skip1 0x0040 /* Skip (i.e. discard) current frame */ +#define PP_RxCFG_Stream 0x0080 /* Enable streaming mode */ +#define PP_RxCFG_RxOK 0x0100 /* RxOK interrupt enable */ +#define PP_RxCFG_RxDMAonly 0x0200 /* Use RxDMA for all frames */ +#define PP_RxCFG_AutoRxDMA 0x0400 /* Select RxDMA automatically */ +#define PP_RxCFG_BufferCRC 0x0800 /* Include CRC characters in frame */ +#define PP_RxCFG_CRC 0x1000 /* Enable interrupt on CRC error */ +#define PP_RxCFG_RUNT 0x2000 /* Enable interrupt on RUNT frames */ +#define PP_RxCFG_EXTRA 0x4000 /* Enable interrupt on frames with extra data */ + +#define PP_RxCTL 0x0104 /* Receiver control */ +#define PP_RxCTL_IAHash 0x0040 /* Accept frames that match hash */ +#define PP_RxCTL_Promiscuous 0x0080 /* Accept any frame */ +#define PP_RxCTL_RxOK 0x0100 /* Accept well formed frames */ +#define PP_RxCTL_Multicast 0x0200 /* Accept multicast frames */ +#define PP_RxCTL_IA 0x0400 /* Accept frame that matches IA */ +#define PP_RxCTL_Broadcast 0x0800 /* Accept broadcast frames */ +#define PP_RxCTL_CRC 0x1000 /* Accept frames with bad CRC */ +#define PP_RxCTL_RUNT 0x2000 /* Accept runt frames */ +#define PP_RxCTL_EXTRA 0x4000 /* Accept frames that are too long */ + +#define PP_TxCFG 0x0106 /* Transmit configuration */ +#define PP_TxCFG_CRS 0x0040 /* Enable interrupt on loss of carrier */ +#define PP_TxCFG_SQE 0x0080 /* Enable interrupt on Signal Quality Error */ +#define PP_TxCFG_TxOK 0x0100 /* Enable interrupt on successful xmits */ +#define PP_TxCFG_Late 0x0200 /* Enable interrupt on "out of window" */ +#define PP_TxCFG_Jabber 0x0400 /* Enable interrupt on jabber detect */ +#define PP_TxCFG_Collision 0x0800 /* Enable interrupt if collision */ +#define PP_TxCFG_16Collisions 0x8000 /* Enable interrupt if > 16 collisions */ + +#define PP_TxCmd 0x0108 /* Transmit command status */ +#define PP_TxCmd_TxStart_5 0x0000 /* Start after 5 bytes in buffer */ +#define PP_TxCmd_TxStart_381 0x0040 /* Start after 381 bytes in buffer */ +#define PP_TxCmd_TxStart_1021 0x0080 /* Start after 1021 bytes in buffer */ +#define PP_TxCmd_TxStart_Full 0x00C0 /* Start after all bytes loaded */ +#define PP_TxCmd_Force 0x0100 /* Discard any pending packets */ +#define PP_TxCmd_OneCollision 0x0200 /* Abort after a single collision */ +#define PP_TxCmd_NoCRC 0x1000 /* Do not add CRC */ +#define PP_TxCmd_NoPad 0x2000 /* Do not pad short packets */ + +#define PP_BufCFG 0x010A /* Buffer configuration */ +#define PP_BufCFG_SWI 0x0040 /* Force interrupt via software */ +#define PP_BufCFG_RxDMA 0x0080 /* Enable interrupt on Rx DMA */ +#define PP_BufCFG_TxRDY 0x0100 /* Enable interrupt when ready for Tx */ +#define PP_BufCFG_TxUE 0x0200 /* Enable interrupt in Tx underrun */ +#define PP_BufCFG_RxMiss 0x0400 /* Enable interrupt on missed Rx packets */ +#define PP_BufCFG_Rx128 0x0800 /* Enable Rx interrupt after 128 bytes */ +#define PP_BufCFG_TxCol 0x1000 /* Enable int on Tx collision ctr overflow */ +#define PP_BufCFG_Miss 0x2000 /* Enable int on Rx miss ctr overflow */ +#define PP_BufCFG_RxDest 0x8000 /* Enable int on Rx dest addr match */ + +#define PP_LineCTL 0x0112 /* Line control */ +#define PP_LineCTL_Rx 0x0040 /* Enable receiver */ +#define PP_LineCTL_Tx 0x0080 /* Enable transmitter */ +#define PP_LineCTL_AUIonly 0x0100 /* AUI interface only */ +#define PP_LineCTL_AutoAUI10BT 0x0200 /* Autodetect AUI or 10BaseT interface */ +#define PP_LineCTL_ModBackoffE 0x0800 /* Enable modified backoff algorithm */ +#define PP_LineCTL_PolarityDis 0x1000 /* Disable Rx polarity autodetect */ +#define PP_LineCTL_2partDefDis 0x2000 /* Disable two-part defferal */ +#define PP_LineCTL_LoRxSquelch 0x4000 /* Reduce receiver squelch threshold */ + +#define PP_SelfCTL 0x0114 /* Chip self control */ +#define PP_SelfCTL_Reset 0x0040 /* Self-clearing reset */ +#define PP_SelfCTL_SWSuspend 0x0100 /* Initiate suspend mode */ +#define PP_SelfCTL_HWSleepE 0x0200 /* Enable SLEEP input */ +#define PP_SelfCTL_HWStandbyE 0x0400 /* Enable standby mode */ +#define PP_SelfCTL_HC0E 0x1000 /* use HCB0 for LINK LED */ +#define PP_SelfCTL_HC1E 0x2000 /* use HCB1 for BSTATUS LED */ +#define PP_SelfCTL_HCB0 0x4000 /* control LINK LED if HC0E set */ +#define PP_SelfCTL_HCB1 0x8000 /* control BSTATUS LED if HC1E set */ + +#define PP_BusCTL 0x0116 /* Bus control */ +#define PP_BusCTL_ResetRxDMA 0x0040 /* Reset RxDMA pointer */ +#define PP_BusCTL_DMAextend 0x0100 /* Extend DMA cycle */ +#define PP_BusCTL_UseSA 0x0200 /* Assert MEMCS16 on address decode */ +#define PP_BusCTL_MemoryE 0x0400 /* Enable memory mode */ +#define PP_BusCTL_DMAburst 0x0800 /* Limit DMA access burst */ +#define PP_BusCTL_IOCHRDYE 0x1000 /* Set IOCHRDY high impedence */ +#define PP_BusCTL_RxDMAsize 0x2000 /* Set DMA buffer size 64KB */ +#define PP_BusCTL_EnableIRQ 0x8000 /* Generate interrupt on interrupt event */ + +#define PP_TestCTL 0x0118 /* Test control */ +#define PP_TestCTL_DisableLT 0x0080 /* Disable link status */ +#define PP_TestCTL_ENDECloop 0x0200 /* Internal loopback */ +#define PP_TestCTL_AUIloop 0x0400 /* AUI loopback */ +#define PP_TestCTL_DisBackoff 0x0800 /* Disable backoff algorithm */ +#define PP_TestCTL_FDX 0x4000 /* Enable full duplex mode */ + +#define PP_ISQ 0x0120 /* Interrupt Status Queue */ + +#define PP_RER 0x0124 /* Receive event */ +#define PP_RER_IAHash 0x0040 /* Frame hash match */ +#define PP_RER_Dribble 0x0080 /* Frame had 1-7 extra bits after last byte */ +#define PP_RER_RxOK 0x0100 /* Frame received with no errors */ +#define PP_RER_Hashed 0x0200 /* Frame address hashed OK */ +#define PP_RER_IA 0x0400 /* Frame address matched IA */ +#define PP_RER_Broadcast 0x0800 /* Broadcast frame */ +#define PP_RER_CRC 0x1000 /* Frame had CRC error */ +#define PP_RER_RUNT 0x2000 /* Runt frame */ +#define PP_RER_EXTRA 0x4000 /* Frame was too long */ + +#define PP_TER 0x0128 /* Transmit event */ +#define PP_TER_CRS 0x0040 /* Carrier lost */ +#define PP_TER_SQE 0x0080 /* Signal Quality Error */ +#define PP_TER_TxOK 0x0100 /* Packet sent without error */ +#define PP_TER_Late 0x0200 /* Out of window */ +#define PP_TER_Jabber 0x0400 /* Stuck transmit? */ +#define PP_TER_NumCollisions 0x7800 /* Number of collisions */ +#define PP_TER_16Collisions 0x8000 /* > 16 collisions */ + +#define PP_BER 0x012C /* Buffer event */ +#define PP_BER_SWint 0x0040 /* Software interrupt */ +#define PP_BER_RxDMAFrame 0x0080 /* Received framed DMAed */ +#define PP_BER_Rdy4Tx 0x0100 /* Ready for transmission */ +#define PP_BER_TxUnderrun 0x0200 /* Transmit underrun */ +#define PP_BER_RxMiss 0x0400 /* Received frame missed */ +#define PP_BER_Rx128 0x0800 /* 128 bytes received */ +#define PP_BER_RxDest 0x8000 /* Received framed passed address filter */ + +#define PP_RxMiss 0x0130 /* Receiver miss counter */ + +#define PP_TxCol 0x0132 /* Transmit collision counter */ + +#define PP_LineSTAT 0x0134 /* Line status */ +#define PP_LineSTAT_LinkOK 0x0080 /* Line is connected and working */ +#define PP_LineSTAT_AUI 0x0100 /* Connected via AUI */ +#define PP_LineSTAT_10BT 0x0200 /* Connected via twisted pair */ +#define PP_LineSTAT_Polarity 0x1000 /* Line polarity OK (10BT only) */ +#define PP_LineSTAT_CRS 0x4000 /* Frame being received */ + +#define PP_SelfSTAT 0x0136 /* Chip self status */ +#define PP_SelfSTAT_33VActive 0x0040 /* supply voltage is 3.3V */ +#define PP_SelfSTAT_InitD 0x0080 /* Chip initialization complete */ +#define PP_SelfSTAT_SIBSY 0x0100 /* EEPROM is busy */ +#define PP_SelfSTAT_EEPROM 0x0200 /* EEPROM present */ +#define PP_SelfSTAT_EEPROM_OK 0x0400 /* EEPROM checks out */ +#define PP_SelfSTAT_ELPresent 0x0800 /* External address latch logic available */ +#define PP_SelfSTAT_EEsize 0x1000 /* Size of EEPROM */ + +#define PP_BusSTAT 0x0138 /* Bus status */ +#define PP_BusSTAT_TxBid 0x0080 /* Tx error */ +#define PP_BusSTAT_TxRDY 0x0100 /* Ready for Tx data */ + +#define PP_TDR 0x013C /* AUI Time Domain Reflectometer */ + +/* initiate transmit registers */ + +#define PP_TxCommand 0x0144 /* Tx Command */ +#define PP_TxLength 0x0146 /* Tx Length */ + + +/* address filter registers */ + +#define PP_LAF 0x0150 /* Logical address filter (6 bytes) */ +#define PP_IA 0x0158 /* Individual address (MAC) */ + +/* EEPROM Kram */ +#define SI_BUSY 0x0100 +#define PP_SelfST 0x0136 /* Self State register */ +#define PP_EECMD 0x0040 /* NVR Interface Command register */ +#define PP_EEData 0x0042 /* NVR Interface Data Register */ +#define EEPROM_WRITE_EN 0x00F0 +#define EEPROM_WRITE_DIS 0x0000 +#define EEPROM_WRITE_CMD 0x0100 +#define EEPROM_READ_CMD 0x0200 + + + +#endif /* CONFIG_DRIVER_CS8900 */ diff --git a/drivers/natsemi.c b/drivers/natsemi.c new file mode 100644 index 0000000..5a8c5b4 --- /dev/null +++ b/drivers/natsemi.c @@ -0,0 +1,881 @@ +/* + natsemi.c: A U-Boot driver for the NatSemi DP8381x series. + Author: Mark A. Rakes (mark_rakes@vivato.net) + + Adapted from an Etherboot driver written by: + + Copyright (C) 2001 Entity Cyber, Inc. + + This development of this Etherboot driver was funded by + + Sicom Systems: http://www.sicompos.com/ + + Author: Marty Connor (mdc@thinguin.org) + Adapted from a Linux driver which was written by Donald Becker + + This software may be used and distributed according to the terms + of the GNU Public License (GPL), incorporated herein by reference. + + Original Copyright Notice: + + Written/copyright 1999-2001 by Donald Becker. + + This software may be used and distributed according to the terms of + the GNU General Public License (GPL), incorporated herein by reference. + Drivers based on or derived from this code fall under the GPL and must + retain the authorship, copyright and license notice. This file is not + a complete program and may only be used when the entire operating + system is licensed under the GPL. License for under other terms may be + available. Contact the original author for details. + + The original author may be reached as becker@scyld.com, or at + Scyld Computing Corporation + 410 Severn Ave., Suite 210 + Annapolis MD 21403 + + Support information and updates available at + http://www.scyld.com/network/netsemi.html + + References: + http://www.scyld.com/expert/100mbps.html + http://www.scyld.com/expert/NWay.html + Datasheet is available from: + http://www.national.com/pf/DP/DP83815.html +*/ + +/* Revision History + * October 2002 mar 1.0 + * Initial U-Boot Release. Tested with Netgear FA311 board + * and dp83815 chipset on custom board +*/ + +/* Includes */ +#include <common.h> +#include <malloc.h> +#include <net.h> +#include <asm/io.h> +#include <pci.h> + +#if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI) && \ + defined(CONFIG_NATSEMI) + +/* defines */ +#define EEPROM_SIZE 0xb /*12 16-bit chunks, or 24 bytes*/ + +#define DSIZE 0x00000FFF +#define ETH_ALEN 6 +#define CRC_SIZE 4 +#define TOUT_LOOP 500000 +#define TX_BUF_SIZE 1536 +#define RX_BUF_SIZE 1536 +#define NUM_RX_DESC 4 /* Number of Rx descriptor registers. */ + +/* Offsets to the device registers. + Unlike software-only systems, device drivers interact with complex hardware. + It's not useful to define symbolic names for every register bit in the + device. */ +enum register_offsets { + ChipCmd = 0x00, + ChipConfig = 0x04, + EECtrl = 0x08, + IntrMask = 0x14, + IntrEnable = 0x18, + TxRingPtr = 0x20, + TxConfig = 0x24, + RxRingPtr = 0x30, + RxConfig = 0x34, + ClkRun = 0x3C, + RxFilterAddr = 0x48, + RxFilterData = 0x4C, + SiliconRev = 0x58, + PCIPM = 0x44, + BasicControl = 0x80, + BasicStatus = 0x84, + /* These are from the spec, around page 78... on a separate table. */ + PGSEL = 0xCC, + PMDCSR = 0xE4, + TSTDAT = 0xFC, + DSPCFG = 0xF4, + SDCFG = 0x8C +}; + +/* Bit in ChipCmd. */ +enum ChipCmdBits { + ChipReset = 0x100, + RxReset = 0x20, + TxReset = 0x10, + RxOff = 0x08, + RxOn = 0x04, + TxOff = 0x02, + TxOn = 0x01 +}; + +enum ChipConfigBits { + LinkSts = 0x80000000, + HundSpeed = 0x40000000, + FullDuplex = 0x20000000, + TenPolarity = 0x10000000, + AnegDone = 0x08000000, + AnegEnBothBoth = 0x0000E000, + AnegDis100Full = 0x0000C000, + AnegEn100Both = 0x0000A000, + AnegDis100Half = 0x00008000, + AnegEnBothHalf = 0x00006000, + AnegDis10Full = 0x00004000, + AnegEn10Both = 0x00002000, + DuplexMask = 0x00008000, + SpeedMask = 0x00004000, + AnegMask = 0x00002000, + AnegDis10Half = 0x00000000, + ExtPhy = 0x00001000, + PhyRst = 0x00000400, + PhyDis = 0x00000200, + BootRomDisable = 0x00000004, + BEMode = 0x00000001, +}; + +enum TxConfig_bits { + TxDrthMask = 0x3f, + TxFlthMask = 0x3f00, + TxMxdmaMask = 0x700000, + TxMxdma_512 = 0x0, + TxMxdma_4 = 0x100000, + TxMxdma_8 = 0x200000, + TxMxdma_16 = 0x300000, + TxMxdma_32 = 0x400000, + TxMxdma_64 = 0x500000, + TxMxdma_128 = 0x600000, + TxMxdma_256 = 0x700000, + TxCollRetry = 0x800000, + TxAutoPad = 0x10000000, + TxMacLoop = 0x20000000, + TxHeartIgn = 0x40000000, + TxCarrierIgn = 0x80000000 +}; + +enum RxConfig_bits { + RxDrthMask = 0x3e, + RxMxdmaMask = 0x700000, + RxMxdma_512 = 0x0, + RxMxdma_4 = 0x100000, + RxMxdma_8 = 0x200000, + RxMxdma_16 = 0x300000, + RxMxdma_32 = 0x400000, + RxMxdma_64 = 0x500000, + RxMxdma_128 = 0x600000, + RxMxdma_256 = 0x700000, + RxAcceptLong = 0x8000000, + RxAcceptTx = 0x10000000, + RxAcceptRunt = 0x40000000, + RxAcceptErr = 0x80000000 +}; + +/* Bits in the RxMode register. */ +enum rx_mode_bits { + AcceptErr = 0x20, + AcceptRunt = 0x10, + AcceptBroadcast = 0xC0000000, + AcceptMulticast = 0x00200000, + AcceptAllMulticast = 0x20000000, + AcceptAllPhys = 0x10000000, + AcceptMyPhys = 0x08000000 +}; + +typedef struct _BufferDesc { + u32 link; + vu_long cmdsts; + u32 bufptr; + u32 software_use; +} BufferDesc; + +/* Bits in network_desc.status */ +enum desc_status_bits { + DescOwn = 0x80000000, DescMore = 0x40000000, DescIntr = 0x20000000, + DescNoCRC = 0x10000000, DescPktOK = 0x08000000, + DescSizeMask = 0xfff, + + DescTxAbort = 0x04000000, DescTxFIFO = 0x02000000, + DescTxCarrier = 0x01000000, DescTxDefer = 0x00800000, + DescTxExcDefer = 0x00400000, DescTxOOWCol = 0x00200000, + DescTxExcColl = 0x00100000, DescTxCollCount = 0x000f0000, + + DescRxAbort = 0x04000000, DescRxOver = 0x02000000, + DescRxDest = 0x01800000, DescRxLong = 0x00400000, + DescRxRunt = 0x00200000, DescRxInvalid = 0x00100000, + DescRxCRC = 0x00080000, DescRxAlign = 0x00040000, + DescRxLoop = 0x00020000, DesRxColl = 0x00010000, +}; + +/* Globals */ +#ifdef NATSEMI_DEBUG +static int natsemi_debug = 0; /* 1 verbose debugging, 0 normal */ +#endif +static u32 SavedClkRun; +static unsigned int cur_rx; +static unsigned int advertising; +static unsigned int rx_config; +static unsigned int tx_config; + +/* Note: transmit and receive buffers and descriptors must be + longword aligned */ +static BufferDesc txd __attribute__ ((aligned(4))); +static BufferDesc rxd[NUM_RX_DESC] __attribute__ ((aligned(4))); + +static unsigned char txb[TX_BUF_SIZE] __attribute__ ((aligned(4))); +static unsigned char rxb[NUM_RX_DESC * RX_BUF_SIZE] + __attribute__ ((aligned(4))); + +/* Function Prototypes */ +#if 0 +static void write_eeprom(struct eth_device *dev, long addr, int location, + short value); +#endif +static int read_eeprom(struct eth_device *dev, long addr, int location); +static int mdio_read(struct eth_device *dev, int phy_id, int location); +static int natsemi_init(struct eth_device *dev, bd_t * bis); +static void natsemi_reset(struct eth_device *dev); +static void natsemi_init_rxfilter(struct eth_device *dev); +static void natsemi_init_txd(struct eth_device *dev); +static void natsemi_init_rxd(struct eth_device *dev); +static void natsemi_set_rx_mode(struct eth_device *dev); +static void natsemi_check_duplex(struct eth_device *dev); +static int natsemi_send(struct eth_device *dev, volatile void *packet, + int length); +static int natsemi_poll(struct eth_device *dev); +static void natsemi_disable(struct eth_device *dev); + +static struct pci_device_id supported[] = { + {PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_83815}, + {} +}; + +#define bus_to_phys(a) pci_mem_to_phys((pci_dev_t)dev->priv, a) +#define phys_to_bus(a) pci_phys_to_mem((pci_dev_t)dev->priv, a) + +static inline int +INW(struct eth_device *dev, u_long addr) +{ + return le16_to_cpu(*(vu_short *) (addr + dev->iobase)); +} + +static int +INL(struct eth_device *dev, u_long addr) +{ + return le32_to_cpu(*(vu_long *) (addr + dev->iobase)); +} + +static inline void +OUTW(struct eth_device *dev, int command, u_long addr) +{ + *(vu_short *) ((addr + dev->iobase)) = cpu_to_le16(command); +} + +static inline void +OUTL(struct eth_device *dev, int command, u_long addr) +{ + *(vu_long *) ((addr + dev->iobase)) = cpu_to_le32(command); +} + +/* + * Function: natsemi_initialize + * + * Description: Retrieves the MAC address of the card, and sets up some + * globals required by other routines, and initializes the NIC, making it + * ready to send and receive packets. + * + * Side effects: + * leaves the natsemi initialized, and ready to recieve packets. + * + * Returns: struct eth_device *: pointer to NIC data structure + */ + +int +natsemi_initialize(bd_t * bis) +{ + pci_dev_t devno; + int card_number = 0; + struct eth_device *dev; + u32 iobase, status, chip_config; + int i, idx = 0; + int prev_eedata; + u32 tmp; + + while (1) { + /* Find PCI device(s) */ + if ((devno = pci_find_devices(supported, idx++)) < 0) { + break; + } + + pci_read_config_dword(devno, PCI_BASE_ADDRESS_0, &iobase); + iobase &= ~0x3; /* 1: unused and 0:I/O Space Indicator */ + + pci_write_config_dword(devno, PCI_COMMAND, + PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER); + + /* Check if I/O accesses and Bus Mastering are enabled. */ + pci_read_config_dword(devno, PCI_COMMAND, &status); + if (!(status & PCI_COMMAND_MEMORY)) { + printf("Error: Can not enable MEM access.\n"); + continue; + } else if (!(status & PCI_COMMAND_MASTER)) { + printf("Error: Can not enable Bus Mastering.\n"); + continue; + } + + dev = (struct eth_device *) malloc(sizeof *dev); + + sprintf(dev->name, "dp83815#%d", card_number); + dev->iobase = bus_to_phys(iobase); +#ifdef NATSEMI_DEBUG + printf("natsemi: NatSemi ns8381[56] @ %#x\n", dev->iobase); +#endif + dev->priv = (void *) devno; + dev->init = natsemi_init; + dev->halt = natsemi_disable; + dev->send = natsemi_send; + dev->recv = natsemi_poll; + + eth_register(dev); + + card_number++; + + /* Set the latency timer for value. */ + pci_write_config_byte(devno, PCI_LATENCY_TIMER, 0x20); + + udelay(10 * 1000); + + /* natsemi has a non-standard PM control register + * in PCI config space. Some boards apparently need + * to be brought to D0 in this manner. */ + pci_read_config_dword(devno, PCIPM, &tmp); + if (tmp & (0x03 | 0x100)) { + /* D0 state, disable PME assertion */ + u32 newtmp = tmp & ~(0x03 | 0x100); + pci_write_config_dword(devno, PCIPM, newtmp); + } + + printf("natsemi: EEPROM contents:\n"); + for (i = 0; i <= EEPROM_SIZE; i++) { + short eedata = read_eeprom(dev, EECtrl, i); + printf(" %04hx", eedata); + } + printf("\n"); + + /* get MAC address */ + prev_eedata = read_eeprom(dev, EECtrl, 6); + for (i = 0; i < 3; i++) { + int eedata = read_eeprom(dev, EECtrl, i + 7); + dev->enetaddr[i*2] = (eedata << 1) + (prev_eedata >> 15); + dev->enetaddr[i*2+1] = eedata >> 7; + prev_eedata = eedata; + } + + /* Reset the chip to erase any previous misconfiguration. */ + OUTL(dev, ChipReset, ChipCmd); + + advertising = mdio_read(dev, 1, 4); + chip_config = INL(dev, ChipConfig); +#ifdef NATSEMI_DEBUG + printf("%s: Transceiver status %#08X advertising %#08X\n", + dev->name, (int) INL(dev, BasicStatus), advertising); + printf("%s: Transceiver default autoneg. %s 10%s %s duplex.\n", + dev->name, chip_config & AnegMask ? "enabled, advertise" : + "disabled, force", chip_config & SpeedMask ? "0" : "", + chip_config & DuplexMask ? "full" : "half"); +#endif + chip_config |= AnegEnBothBoth; +#ifdef NATSEMI_DEBUG + printf("%s: changed to autoneg. %s 10%s %s duplex.\n", + dev->name, chip_config & AnegMask ? "enabled, advertise" : + "disabled, force", chip_config & SpeedMask ? "0" : "", + chip_config & DuplexMask ? "full" : "half"); +#endif + /*write new autoneg bits, reset phy*/ + OUTL(dev, (chip_config | PhyRst), ChipConfig); + /*un-reset phy*/ + OUTL(dev, chip_config, ChipConfig); + + /* Disable PME: + * The PME bit is initialized from the EEPROM contents. + * PCI cards probably have PME disabled, but motherboard + * implementations may have PME set to enable WakeOnLan. + * With PME set the chip will scan incoming packets but + * nothing will be written to memory. */ + SavedClkRun = INL(dev, ClkRun); + OUTL(dev, SavedClkRun & ~0x100, ClkRun); + } + return card_number; +} + +/* Read the EEPROM and MII Management Data I/O (MDIO) interfaces. + The EEPROM code is for common 93c06/46 EEPROMs w/ 6bit addresses. */ + +/* Delay between EEPROM clock transitions. + No extra delay is needed with 33Mhz PCI, but future 66Mhz + access may need a delay. */ +#define eeprom_delay(ee_addr) INL(dev, ee_addr) + +enum EEPROM_Ctrl_Bits { + EE_ShiftClk = 0x04, + EE_DataIn = 0x01, + EE_ChipSelect = 0x08, + EE_DataOut = 0x02 +}; + +#define EE_Write0 (EE_ChipSelect) +#define EE_Write1 (EE_ChipSelect | EE_DataIn) +/* The EEPROM commands include the alway-set leading bit. */ +enum EEPROM_Cmds { + EE_WrEnCmd = (4 << 6), EE_WriteCmd = (5 << 6), + EE_ReadCmd = (6 << 6), EE_EraseCmd = (7 << 6), +}; + +#if 0 +static void +write_eeprom(struct eth_device *dev, long addr, int location, short value) +{ + int i; + int ee_addr = (typeof(ee_addr))addr; + short wren_cmd = EE_WrEnCmd | 0x30; /*wren is 100 + 11XXXX*/ + short write_cmd = location | EE_WriteCmd; + +#ifdef NATSEMI_DEBUG + printf("write_eeprom: %08x, %04hx, %04hx\n", + dev->iobase + ee_addr, write_cmd, value); +#endif + /* Shift the write enable command bits out. */ + for (i = 9; i >= 0; i--) { + short cmdval = (wren_cmd & (1 << i)) ? EE_Write1 : EE_Write0; + OUTL(dev, cmdval, ee_addr); + eeprom_delay(ee_addr); + OUTL(dev, cmdval | EE_ShiftClk, ee_addr); + eeprom_delay(ee_addr); + } + + OUTL(dev, 0, ee_addr); /*bring chip select low*/ + OUTL(dev, EE_ShiftClk, ee_addr); + eeprom_delay(ee_addr); + + /* Shift the write command bits out. */ + for (i = 9; i >= 0; i--) { + short cmdval = (write_cmd & (1 << i)) ? EE_Write1 : EE_Write0; + OUTL(dev, cmdval, ee_addr); + eeprom_delay(ee_addr); + OUTL(dev, cmdval | EE_ShiftClk, ee_addr); + eeprom_delay(ee_addr); + } + + for (i = 0; i < 16; i++) { + short cmdval = (value & (1 << i)) ? EE_Write1 : EE_Write0; + OUTL(dev, cmdval, ee_addr); + eeprom_delay(ee_addr); + OUTL(dev, cmdval | EE_ShiftClk, ee_addr); + eeprom_delay(ee_addr); + } + + OUTL(dev, 0, ee_addr); /*bring chip select low*/ + OUTL(dev, EE_ShiftClk, ee_addr); + for (i = 0; i < 200000; i++) { + OUTL(dev, EE_Write0, ee_addr); /*poll for done*/ + if (INL(dev, ee_addr) & EE_DataOut) { + break; /*finished*/ + } + } + eeprom_delay(ee_addr); + + /* Terminate the EEPROM access. */ + OUTL(dev, EE_Write0, ee_addr); + OUTL(dev, 0, ee_addr); + return; +} +#endif + +static int +read_eeprom(struct eth_device *dev, long addr, int location) +{ + int i; + int retval = 0; + int ee_addr = (typeof(ee_addr))addr; + int read_cmd = location | EE_ReadCmd; + + OUTL(dev, EE_Write0, ee_addr); + + /* Shift the read command bits out. */ + for (i = 10; i >= 0; i--) { + short dataval = (read_cmd & (1 << i)) ? EE_Write1 : EE_Write0; + OUTL(dev, dataval, ee_addr); + eeprom_delay(ee_addr); + OUTL(dev, dataval | EE_ShiftClk, ee_addr); + eeprom_delay(ee_addr); + } + OUTL(dev, EE_ChipSelect, ee_addr); + eeprom_delay(ee_addr); + + for (i = 0; i < 16; i++) { + OUTL(dev, EE_ChipSelect | EE_ShiftClk, ee_addr); + eeprom_delay(ee_addr); + retval |= (INL(dev, ee_addr) & EE_DataOut) ? 1 << i : 0; + OUTL(dev, EE_ChipSelect, ee_addr); + eeprom_delay(ee_addr); + } + + /* Terminate the EEPROM access. */ + OUTL(dev, EE_Write0, ee_addr); + OUTL(dev, 0, ee_addr); +#ifdef NATSEMI_DEBUG + if (natsemi_debug) + printf("read_eeprom: %08x, %08x, retval %08x\n", + dev->iobase + ee_addr, read_cmd, retval); +#endif + return retval; +} + +/* MII transceiver control section. + The 83815 series has an internal transceiver, and we present the + management registers as if they were MII connected. */ + +static int +mdio_read(struct eth_device *dev, int phy_id, int location) +{ + if (phy_id == 1 && location < 32) + return INL(dev, BasicControl+(location<<2))&0xffff; + else + return 0xffff; +} + +/* Function: natsemi_init + * + * Description: resets the ethernet controller chip and configures + * registers and data structures required for sending and receiving packets. + * + * Arguments: struct eth_device *dev: NIC data structure + * + * returns: int. + */ + +static int +natsemi_init(struct eth_device *dev, bd_t * bis) +{ + + natsemi_reset(dev); + + /* Disable PME: + * The PME bit is initialized from the EEPROM contents. + * PCI cards probably have PME disabled, but motherboard + * implementations may have PME set to enable WakeOnLan. + * With PME set the chip will scan incoming packets but + * nothing will be written to memory. */ + OUTL(dev, SavedClkRun & ~0x100, ClkRun); + + natsemi_init_rxfilter(dev); + natsemi_init_txd(dev); + natsemi_init_rxd(dev); + + /* Configure the PCI bus bursts and FIFO thresholds. */ + tx_config = TxAutoPad | TxCollRetry | TxMxdma_256 | (0x1002); + rx_config = RxMxdma_256 | 0x20; + +#ifdef NATSEMI_DEBUG + printf("%s: Setting TxConfig Register %#08X\n", dev->name, tx_config); + printf("%s: Setting RxConfig Register %#08X\n", dev->name, rx_config); +#endif + OUTL(dev, tx_config, TxConfig); + OUTL(dev, rx_config, RxConfig); + + natsemi_check_duplex(dev); + natsemi_set_rx_mode(dev); + + OUTL(dev, (RxOn | TxOn), ChipCmd); + return 1; +} + +/* + * Function: natsemi_reset + * + * Description: soft resets the controller chip + * + * Arguments: struct eth_device *dev: NIC data structure + * + * Returns: void. + */ +static void +natsemi_reset(struct eth_device *dev) +{ + OUTL(dev, ChipReset, ChipCmd); + + /* On page 78 of the spec, they recommend some settings for "optimum + performance" to be done in sequence. These settings optimize some + of the 100Mbit autodetection circuitry. Also, we only want to do + this for rev C of the chip. */ + if (INL(dev, SiliconRev) == 0x302) { + OUTW(dev, 0x0001, PGSEL); + OUTW(dev, 0x189C, PMDCSR); + OUTW(dev, 0x0000, TSTDAT); + OUTW(dev, 0x5040, DSPCFG); + OUTW(dev, 0x008C, SDCFG); + } + /* Disable interrupts using the mask. */ + OUTL(dev, 0, IntrMask); + OUTL(dev, 0, IntrEnable); +} + +/* Function: natsemi_init_rxfilter + * + * Description: sets receive filter address to our MAC address + * + * Arguments: struct eth_device *dev: NIC data structure + * + * returns: void. + */ + +static void +natsemi_init_rxfilter(struct eth_device *dev) +{ + int i; + + for (i = 0; i < ETH_ALEN; i += 2) { + OUTL(dev, i, RxFilterAddr); + OUTW(dev, dev->enetaddr[i] + (dev->enetaddr[i + 1] << 8), + RxFilterData); + } +} + +/* + * Function: natsemi_init_txd + * + * Description: initializes the Tx descriptor + * + * Arguments: struct eth_device *dev: NIC data structure + * + * returns: void. + */ + +static void +natsemi_init_txd(struct eth_device *dev) +{ + txd.link = (u32) 0; + txd.cmdsts = (u32) 0; + txd.bufptr = (u32) & txb[0]; + + /* load Transmit Descriptor Register */ + OUTL(dev, (u32) & txd, TxRingPtr); +#ifdef NATSEMI_DEBUG + printf("natsemi_init_txd: TX descriptor reg loaded with: %#08X\n", + INL(dev, TxRingPtr)); +#endif +} + +/* Function: natsemi_init_rxd + * + * Description: initializes the Rx descriptor ring + * + * Arguments: struct eth_device *dev: NIC data structure + * + * Returns: void. + */ + +static void +natsemi_init_rxd(struct eth_device *dev) +{ + int i; + + cur_rx = 0; + + /* init RX descriptor */ + for (i = 0; i < NUM_RX_DESC; i++) { + rxd[i].link = + cpu_to_le32((i + 1 < + NUM_RX_DESC) ? (u32) & rxd[i + + 1] : (u32) & + rxd[0]); + rxd[i].cmdsts = cpu_to_le32((u32) RX_BUF_SIZE); + rxd[i].bufptr = cpu_to_le32((u32) & rxb[i * RX_BUF_SIZE]); +#ifdef NATSEMI_DEBUG + printf + ("natsemi_init_rxd: rxd[%d]=%p link=%X cmdsts=%lX bufptr=%X\n", + i, &rxd[i], le32_to_cpu(rxd[i].link), + rxd[i].cmdsts, rxd[i].bufptr); +#endif + } + + /* load Receive Descriptor Register */ + OUTL(dev, (u32) & rxd[0], RxRingPtr); + +#ifdef NATSEMI_DEBUG + printf("natsemi_init_rxd: RX descriptor register loaded with: %X\n", + INL(dev, RxRingPtr)); +#endif +} + +/* Function: natsemi_set_rx_mode + * + * Description: + * sets the receive mode to accept all broadcast packets and packets + * with our MAC address, and reject all multicast packets. + * + * Arguments: struct eth_device *dev: NIC data structure + * + * Returns: void. + */ + +static void +natsemi_set_rx_mode(struct eth_device *dev) +{ + u32 rx_mode = AcceptBroadcast | AcceptMyPhys; + + OUTL(dev, rx_mode, RxFilterAddr); +} + +static void +natsemi_check_duplex(struct eth_device *dev) +{ + int duplex = INL(dev, ChipConfig) & FullDuplex ? 1 : 0; + +#ifdef NATSEMI_DEBUG + printf("%s: Setting %s-duplex based on negotiated link" + " capability.\n", dev->name, duplex ? "full" : "half"); +#endif + if (duplex) { + rx_config |= RxAcceptTx; + tx_config |= (TxCarrierIgn | TxHeartIgn); + } else { + rx_config &= ~RxAcceptTx; + tx_config &= ~(TxCarrierIgn | TxHeartIgn); + } + OUTL(dev, tx_config, TxConfig); + OUTL(dev, rx_config, RxConfig); +} + +/* Function: natsemi_send + * + * Description: transmits a packet and waits for completion or timeout. + * + * Returns: void. */ +static int +natsemi_send(struct eth_device *dev, volatile void *packet, int length) +{ + u32 i, status = 0; + u32 tx_status = 0; + + /* Stop the transmitter */ + OUTL(dev, TxOff, ChipCmd); + +#ifdef NATSEMI_DEBUG + if (natsemi_debug) + printf("natsemi_send: sending %d bytes\n", (int) length); +#endif + + /* set the transmit buffer descriptor and enable Transmit State Machine */ + txd.link = cpu_to_le32(0); + txd.bufptr = cpu_to_le32(phys_to_bus((u32) packet)); + txd.cmdsts = cpu_to_le32(DescOwn | length); + + /* load Transmit Descriptor Register */ + OUTL(dev, phys_to_bus((u32) & txd), TxRingPtr); +#ifdef NATSEMI_DEBUG + if (natsemi_debug) + printf("natsemi_send: TX descriptor register loaded with: %#08X\n", + INL(dev, TxRingPtr)); +#endif + /* restart the transmitter */ + OUTL(dev, TxOn, ChipCmd); + + for (i = 0; + ((vu_long)tx_status = le32_to_cpu(txd.cmdsts)) & DescOwn; + i++) { + if (i >= TOUT_LOOP) { + printf + ("%s: tx error buffer not ready: txd.cmdsts == %#X\n", + dev->name, tx_status); + goto Done; + } + } + + if (!(tx_status & DescPktOK)) { + printf("natsemi_send: Transmit error, Tx status %X.\n", + tx_status); + goto Done; + } + + status = 1; + Done: + return status; +} + +/* Function: natsemi_poll + * + * Description: checks for a received packet and returns it if found. + * + * Arguments: struct eth_device *dev: NIC data structure + * + * Returns: 1 if packet was received. + * 0 if no packet was received. + * + * Side effects: + * Returns (copies) the packet to the array dev->packet. + * Returns the length of the packet. + */ + +static int +natsemi_poll(struct eth_device *dev) +{ + int retstat = 0; + int length = 0; + u32 rx_status = le32_to_cpu(rxd[cur_rx].cmdsts); + + if (!(rx_status & (u32) DescOwn)) + return retstat; +#ifdef NATSEMI_DEBUG + if (natsemi_debug) + printf("natsemi_poll: got a packet: cur_rx:%d, status:%X\n", + cur_rx, rx_status); +#endif + length = (rx_status & DSIZE) - CRC_SIZE; + + if ((rx_status & (DescMore | DescPktOK | DescRxLong)) != DescPktOK) { + printf + ("natsemi_poll: Corrupted packet received, buffer status = %X\n", + rx_status); + retstat = 0; + } else { /* give packet to higher level routine */ + NetReceive((rxb + cur_rx * RX_BUF_SIZE), length); + retstat = 1; + } + + /* return the descriptor and buffer to receive ring */ + rxd[cur_rx].cmdsts = cpu_to_le32(RX_BUF_SIZE); + rxd[cur_rx].bufptr = cpu_to_le32((u32) & rxb[cur_rx * RX_BUF_SIZE]); + + if (++cur_rx == NUM_RX_DESC) + cur_rx = 0; + + /* re-enable the potentially idle receive state machine */ + OUTL(dev, RxOn, ChipCmd); + + return retstat; +} + +/* Function: natsemi_disable + * + * Description: Turns off interrupts and stops Tx and Rx engines + * + * Arguments: struct eth_device *dev: NIC data structure + * + * Returns: void. + */ + +static void +natsemi_disable(struct eth_device *dev) +{ + /* Disable interrupts using the mask. */ + OUTL(dev, 0, IntrMask); + OUTL(dev, 0, IntrEnable); + + /* Stop the chip's Tx and Rx processes. */ + OUTL(dev, RxOff | TxOff, ChipCmd); + + /* Restore PME enable bit */ + OUTL(dev, SavedClkRun, ClkRun); +} + +#endif diff --git a/drivers/nicext.h b/drivers/nicext.h new file mode 100644 index 0000000..0879dc2 --- /dev/null +++ b/drivers/nicext.h @@ -0,0 +1,110 @@ +/**************************************************************************** + * Copyright(c) 2000-2001 Broadcom Corporation. All rights reserved. + * + * 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. + * + * Name: nicext.h + * + * Description: Broadcom Network Interface Card Extension (NICE) is an + * extension to Linux NET device kernel mode drivers. + * NICE is designed to provide additional functionalities, + * such as receive packet intercept. To support Broadcom NICE, + * the network device driver can be modified by adding an + * device ioctl handler and by indicating receiving packets + * to the NICE receive handler. Broadcom NICE will only be + * enabled by a NICE-aware intermediate driver, such as + * Broadcom Advanced Server Program Driver (BASP). When NICE + * is not enabled, the modified network device drivers + * functions exactly as other non-NICE aware drivers. + * + * Author: Frankie Fan + * + * Created: September 17, 2000 + * + ****************************************************************************/ +#ifndef _nicext_h_ +#define _nicext_h_ + +/* + * ioctl for NICE + */ +#define SIOCNICE SIOCDEVPRIVATE+7 + +/* + * SIOCNICE: + * + * The following structure needs to be less than IFNAMSIZ (16 bytes) because + * we're overloading ifreq.ifr_ifru. + * + * If 16 bytes is not enough, we should consider relaxing this because + * this is no field after ifr_ifru in the ifreq structure. But we may + * run into future compatiability problem in case of changing struct ifreq. + */ +struct nice_req +{ + __u32 cmd; + + union + { +#ifdef __KERNEL__ + /* cmd = NICE_CMD_SET_RX or NICE_CMD_GET_RX */ + struct + { + void (*nrqus1_rx)( struct sk_buff*, void* ); + void* nrqus1_ctx; + } nrqu_nrqus1; + + /* cmd = NICE_CMD_QUERY_SUPPORT */ + struct + { + __u32 nrqus2_magic; + __u32 nrqus2_support_rx:1; + __u32 nrqus2_support_vlan:1; + __u32 nrqus2_support_get_speed:1; + } nrqu_nrqus2; +#endif + + /* cmd = NICE_CMD_GET_SPEED */ + struct + { + unsigned int nrqus3_speed; /* 0 if link is down, */ + /* otherwise speed in Mbps */ + } nrqu_nrqus3; + + /* cmd = NICE_CMD_BLINK_LED */ + struct + { + unsigned int nrqus4_blink_time; /* blink duration in seconds */ + } nrqu_nrqus4; + + } nrq_nrqu; +}; + +#define nrq_rx nrq_nrqu.nrqu_nrqus1.nrqus1_rx +#define nrq_ctx nrq_nrqu.nrqu_nrqus1.nrqus1_ctx +#define nrq_support_rx nrq_nrqu.nrqu_nrqus2.nrqus2_support_rx +#define nrq_magic nrq_nrqu.nrqu_nrqus2.nrqus2_magic +#define nrq_support_vlan nrq_nrqu.nrqu_nrqus2.nrqus2_support_vlan +#define nrq_support_get_speed nrq_nrqu.nrqu_nrqus2.nrqus2_support_get_speed +#define nrq_speed nrq_nrqu.nrqu_nrqus3.nrqus3_speed +#define nrq_blink_time nrq_nrqu.nrqu_nrqus4.nrqus4_blink_time + +/* + * magic constants + */ +#define NICE_REQUESTOR_MAGIC 0x4543494E /* NICE in ascii */ +#define NICE_DEVICE_MAGIC 0x4E494345 /* ECIN in ascii */ + +/* + * command field + */ +#define NICE_CMD_QUERY_SUPPORT 0x00000001 +#define NICE_CMD_SET_RX 0x00000002 +#define NICE_CMD_GET_RX 0x00000003 +#define NICE_CMD_GET_SPEED 0x00000004 +#define NICE_CMD_BLINK_LED 0x00000005 + +#endif /* _nicext_h_ */ + diff --git a/drivers/ns8382x.c b/drivers/ns8382x.c new file mode 100644 index 0000000..978080e --- /dev/null +++ b/drivers/ns8382x.c @@ -0,0 +1,863 @@ +/* + ns8382x.c: A U-Boot driver for the NatSemi DP8382[01]. + ported by: Mark A. Rakes (mark_rakes@vivato.net) + + Adapted from: + 1. an Etherboot driver for DP8381[56] written by: + Copyright (C) 2001 Entity Cyber, Inc. + + This development of this Etherboot driver was funded by + Sicom Systems: http://www.sicompos.com/ + + Author: Marty Connor (mdc@thinguin.org) + Adapted from a Linux driver which was written by Donald Becker + + This software may be used and distributed according to the terms + of the GNU Public License (GPL), incorporated herein by reference. + + 2. A Linux driver by Donald Becker, ns820.c: + Written/copyright 1999-2002 by Donald Becker. + + This software may be used and distributed according to the terms of + the GNU General Public License (GPL), incorporated herein by reference. + Drivers based on or derived from this code fall under the GPL and must + retain the authorship, copyright and license notice. This file is not + a complete program and may only be used when the entire operating + system is licensed under the GPL. License for under other terms may be + available. Contact the original author for details. + + The original author may be reached as becker@scyld.com, or at + Scyld Computing Corporation + 410 Severn Ave., Suite 210 + Annapolis MD 21403 + + Support information and updates available at + http://www.scyld.com/network/netsemi.html + + Datasheets available from: + http://www.national.com/pf/DP/DP83820.html + http://www.national.com/pf/DP/DP83821.html +*/ + +/* Revision History + * October 2002 mar 1.0 + * Initial U-Boot Release. + * Tested with Netgear GA622T (83820) + * and SMC9452TX (83821) + * NOTE: custom boards with these chips may (likely) require + * a programmed EEPROM device (if present) in order to work + * correctly. +*/ + +/* Includes */ +#include <common.h> +#include <malloc.h> +#include <net.h> +#include <asm/io.h> +#include <pci.h> + +#if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI) && \ + defined(CONFIG_NS8382X) + +/* defines */ +#define DSIZE 0x00000FFF +#define ETH_ALEN 6 +#define CRC_SIZE 4 +#define TOUT_LOOP 500000 +#define TX_BUF_SIZE 1536 +#define RX_BUF_SIZE 1536 +#define NUM_RX_DESC 4 /* Number of Rx descriptor registers. */ + +enum register_offsets { + ChipCmd = 0x00, + ChipConfig = 0x04, + EECtrl = 0x08, + IntrMask = 0x14, + IntrEnable = 0x18, + TxRingPtr = 0x20, + TxRingPtrHi = 0x24, + TxConfig = 0x28, + RxRingPtr = 0x30, + RxRingPtrHi = 0x34, + RxConfig = 0x38, + PriQueue = 0x3C, + RxFilterAddr = 0x48, + RxFilterData = 0x4C, + ClkRun = 0xCC, + PCIPM = 0x44, +}; + +enum ChipCmdBits { + ChipReset = 0x100, + RxReset = 0x20, + TxReset = 0x10, + RxOff = 0x08, + RxOn = 0x04, + TxOff = 0x02, + TxOn = 0x01 +}; + +enum ChipConfigBits { + LinkSts = 0x80000000, + GigSpeed = 0x40000000, + HundSpeed = 0x20000000, + FullDuplex = 0x10000000, + TBIEn = 0x01000000, + Mode1000 = 0x00400000, + T64En = 0x00004000, + D64En = 0x00001000, + M64En = 0x00000800, + PhyRst = 0x00000400, + PhyDis = 0x00000200, + ExtStEn = 0x00000100, + BEMode = 0x00000001, +}; +#define SpeedStatus_Polarity ( GigSpeed | HundSpeed | FullDuplex) + +enum TxConfig_bits { + TxDrthMask = 0x000000ff, + TxFlthMask = 0x0000ff00, + TxMxdmaMask = 0x00700000, + TxMxdma_8 = 0x00100000, + TxMxdma_16 = 0x00200000, + TxMxdma_32 = 0x00300000, + TxMxdma_64 = 0x00400000, + TxMxdma_128 = 0x00500000, + TxMxdma_256 = 0x00600000, + TxMxdma_512 = 0x00700000, + TxMxdma_1024 = 0x00000000, + TxCollRetry = 0x00800000, + TxAutoPad = 0x10000000, + TxMacLoop = 0x20000000, + TxHeartIgn = 0x40000000, + TxCarrierIgn = 0x80000000 +}; + +enum RxConfig_bits { + RxDrthMask = 0x0000003e, + RxMxdmaMask = 0x00700000, + RxMxdma_8 = 0x00100000, + RxMxdma_16 = 0x00200000, + RxMxdma_32 = 0x00300000, + RxMxdma_64 = 0x00400000, + RxMxdma_128 = 0x00500000, + RxMxdma_256 = 0x00600000, + RxMxdma_512 = 0x00700000, + RxMxdma_1024 = 0x00000000, + RxAcceptLenErr = 0x04000000, + RxAcceptLong = 0x08000000, + RxAcceptTx = 0x10000000, + RxStripCRC = 0x20000000, + RxAcceptRunt = 0x40000000, + RxAcceptErr = 0x80000000, +}; + +/* Bits in the RxMode register. */ +enum rx_mode_bits { + RxFilterEnable = 0x80000000, + AcceptAllBroadcast = 0x40000000, + AcceptAllMulticast = 0x20000000, + AcceptAllUnicast = 0x10000000, + AcceptPerfectMatch = 0x08000000, +}; + +typedef struct _BufferDesc { + u32 link; + u32 bufptr; + vu_long cmdsts; + u32 extsts; /*not used here */ +} BufferDesc; + +/* Bits in network_desc.status */ +enum desc_status_bits { + DescOwn = 0x80000000, DescMore = 0x40000000, DescIntr = 0x20000000, + DescNoCRC = 0x10000000, DescPktOK = 0x08000000, + DescSizeMask = 0xfff, + + DescTxAbort = 0x04000000, DescTxFIFO = 0x02000000, + DescTxCarrier = 0x01000000, DescTxDefer = 0x00800000, + DescTxExcDefer = 0x00400000, DescTxOOWCol = 0x00200000, + DescTxExcColl = 0x00100000, DescTxCollCount = 0x000f0000, + + DescRxAbort = 0x04000000, DescRxOver = 0x02000000, + DescRxDest = 0x01800000, DescRxLong = 0x00400000, + DescRxRunt = 0x00200000, DescRxInvalid = 0x00100000, + DescRxCRC = 0x00080000, DescRxAlign = 0x00040000, + DescRxLoop = 0x00020000, DesRxColl = 0x00010000, +}; + +/* Bits in MEAR */ +enum mii_reg_bits { + MDIO_ShiftClk = 0x0040, + MDIO_EnbOutput = 0x0020, + MDIO_Data = 0x0010, +}; + +/* PHY Register offsets. */ +enum phy_reg_offsets { + BMCR = 0x00, + BMSR = 0x01, + PHYIDR1 = 0x02, + PHYIDR2 = 0x03, + ANAR = 0x04, + KTCR = 0x09, +}; + +/* basic mode control register bits */ +enum bmcr_bits { + Bmcr_Reset = 0x8000, + Bmcr_Loop = 0x4000, + Bmcr_Speed0 = 0x2000, + Bmcr_AutoNegEn = 0x1000, /*if set ignores Duplex, Speed[01] */ + Bmcr_RstAutoNeg = 0x0200, + Bmcr_Duplex = 0x0100, + Bmcr_Speed1 = 0x0040, + Bmcr_Force10H = 0x0000, + Bmcr_Force10F = 0x0100, + Bmcr_Force100H = 0x2000, + Bmcr_Force100F = 0x2100, + Bmcr_Force1000H = 0x0040, + Bmcr_Force1000F = 0x0140, +}; + +/* auto negotiation advertisement register */ +enum anar_bits { + anar_adv_100F = 0x0100, + anar_adv_100H = 0x0080, + anar_adv_10F = 0x0040, + anar_adv_10H = 0x0020, + anar_ieee_8023 = 0x0001, +}; + +/* 1K-base T control register */ +enum ktcr_bits { + ktcr_adv_1000H = 0x0100, + ktcr_adv_1000F = 0x0200, +}; + +/* Globals */ +static u32 SavedClkRun; +static unsigned int cur_rx; +static unsigned int rx_config; +static unsigned int tx_config; + +/* Note: transmit and receive buffers and descriptors must be + long long word aligned */ +static BufferDesc txd __attribute__ ((aligned(8))); +static BufferDesc rxd[NUM_RX_DESC] __attribute__ ((aligned(8))); +static unsigned char txb[TX_BUF_SIZE] __attribute__ ((aligned(8))); +static unsigned char rxb[NUM_RX_DESC * RX_BUF_SIZE] + __attribute__ ((aligned(8))); + +/* Function Prototypes */ +static int mdio_read(struct eth_device *dev, int phy_id, int addr); +static void mdio_write(struct eth_device *dev, int phy_id, int addr, int value); +static void mdio_sync(struct eth_device *dev, u32 offset); +static int ns8382x_init(struct eth_device *dev, bd_t * bis); +static void ns8382x_reset(struct eth_device *dev); +static void ns8382x_init_rxfilter(struct eth_device *dev); +static void ns8382x_init_txd(struct eth_device *dev); +static void ns8382x_init_rxd(struct eth_device *dev); +static void ns8382x_set_rx_mode(struct eth_device *dev); +static void ns8382x_check_duplex(struct eth_device *dev); +static int ns8382x_send(struct eth_device *dev, volatile void *packet, + int length); +static int ns8382x_poll(struct eth_device *dev); +static void ns8382x_disable(struct eth_device *dev); + +static struct pci_device_id supported[] = { + {PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_8382x}, + {} +}; + +#define bus_to_phys(a) pci_mem_to_phys((pci_dev_t)dev->priv, a) +#define phys_to_bus(a) pci_phys_to_mem((pci_dev_t)dev->priv, a) + +static inline int +INW(struct eth_device *dev, u_long addr) +{ + return le16_to_cpu(*(vu_short *) (addr + dev->iobase)); +} + +static int +INL(struct eth_device *dev, u_long addr) +{ + return le32_to_cpu(*(vu_long *) (addr + dev->iobase)); +} + +static inline void +OUTW(struct eth_device *dev, int command, u_long addr) +{ + *(vu_short *) ((addr + dev->iobase)) = cpu_to_le16(command); +} + +static inline void +OUTL(struct eth_device *dev, int command, u_long addr) +{ + *(vu_long *) ((addr + dev->iobase)) = cpu_to_le32(command); +} + +/* Function: ns8382x_initialize + * Description: Retrieves the MAC address of the card, and sets up some + * globals required by other routines, and initializes the NIC, making it + * ready to send and receive packets. + * Side effects: initializes ns8382xs, ready to recieve packets. + * Returns: int: number of cards found + */ + +int +ns8382x_initialize(bd_t * bis) +{ + pci_dev_t devno; + int card_number = 0; + struct eth_device *dev; + u32 iobase, status; + int i, idx = 0; + u32 phyAddress; + u32 tmp; + u32 chip_config; + + while (1) { /* Find PCI device(s) */ + if ((devno = pci_find_devices(supported, idx++)) < 0) + break; + + pci_read_config_dword(devno, PCI_BASE_ADDRESS_0, &iobase); + iobase &= ~0x3; /* 1: unused and 0:I/O Space Indicator */ + +#ifdef NS8382X_DEBUG + printf("ns8382x: NatSemi dp8382x @ 0x%x\n", iobase); +#endif + + pci_write_config_dword(devno, PCI_COMMAND, + PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER); + + /* Check if I/O accesses and Bus Mastering are enabled. */ + pci_read_config_dword(devno, PCI_COMMAND, &status); + if (!(status & PCI_COMMAND_MEMORY)) { + printf("Error: Can not enable MEM access.\n"); + continue; + } else if (!(status & PCI_COMMAND_MASTER)) { + printf("Error: Can not enable Bus Mastering.\n"); + continue; + } + + dev = (struct eth_device *) malloc(sizeof *dev); + + sprintf(dev->name, "dp8382x#%d", card_number); + dev->iobase = bus_to_phys(iobase); + dev->priv = (void *) devno; + dev->init = ns8382x_init; + dev->halt = ns8382x_disable; + dev->send = ns8382x_send; + dev->recv = ns8382x_poll; + + /* ns8382x has a non-standard PM control register + * in PCI config space. Some boards apparently need + * to be brought to D0 in this manner. */ + pci_read_config_dword(devno, PCIPM, &tmp); + if (tmp & (0x03 | 0x100)) { /* D0 state, disable PME assertion */ + u32 newtmp = tmp & ~(0x03 | 0x100); + pci_write_config_dword(devno, PCIPM, newtmp); + } + + /* get MAC address */ + for (i = 0; i < 3; i++) { + u32 data; + char *mac = &dev->enetaddr[i * 2]; + + OUTL(dev, i * 2, RxFilterAddr); + data = INL(dev, RxFilterData); + *mac++ = data; + *mac++ = data >> 8; + } + /* get PHY address, can't be zero */ + for (phyAddress = 1; phyAddress < 32; phyAddress++) { + u32 rev, phy1; + + phy1 = mdio_read(dev, phyAddress, PHYIDR1); + if (phy1 == 0x2000) { /*check for 83861/91 */ + rev = mdio_read(dev, phyAddress, PHYIDR2); + if ((rev & ~(0x000f)) == 0x00005c50 || + (rev & ~(0x000f)) == 0x00005c60) { +#ifdef NS8382X_DEBUG + printf("phy rev is %x\n", rev); + printf("phy address is %x\n", + phyAddress); +#endif + break; + } + } + } + + /* set phy to autonegotiate && advertise everything */ + mdio_write(dev, phyAddress, KTCR, + (ktcr_adv_1000H | ktcr_adv_1000F)); + mdio_write(dev, phyAddress, ANAR, + (anar_adv_100F | anar_adv_100H | anar_adv_10H | + anar_adv_10F | anar_ieee_8023)); + mdio_write(dev, phyAddress, BMCR, 0x0); /*restore */ + mdio_write(dev, phyAddress, BMCR, + (Bmcr_AutoNegEn | Bmcr_RstAutoNeg)); + /* Reset the chip to erase any previous misconfiguration. */ + OUTL(dev, (ChipReset), ChipCmd); + + chip_config = INL(dev, ChipConfig); + /* reset the phy */ + OUTL(dev, (chip_config | PhyRst), ChipConfig); + /* power up and initialize transceiver */ + OUTL(dev, (chip_config & ~(PhyDis)), ChipConfig); + + mdio_sync(dev, EECtrl); +#ifdef NS8382X_DEBUG + { + u32 chpcfg = + INL(dev, ChipConfig) ^ SpeedStatus_Polarity; + + printf("%s: Transceiver 10%s %s duplex.\n", dev->name, + (chpcfg & GigSpeed) ? "00" : (chpcfg & HundSpeed) + ? "0" : "", + chpcfg & FullDuplex ? "full" : "half"); + printf("%s: %02x:%02x:%02x:%02x:%02x:%02x\n", dev->name, + dev->enetaddr[0], dev->enetaddr[1], + dev->enetaddr[2], dev->enetaddr[3], + dev->enetaddr[4], dev->enetaddr[5]); + } +#endif + /* Disable PME: + * The PME bit is initialized from the EEPROM contents. + * PCI cards probably have PME disabled, but motherboard + * implementations may have PME set to enable WakeOnLan. + * With PME set the chip will scan incoming packets but + * nothing will be written to memory. */ + SavedClkRun = INL(dev, ClkRun); + OUTL(dev, SavedClkRun & ~0x100, ClkRun); + + eth_register(dev); + + card_number++; + + pci_write_config_byte(devno, PCI_LATENCY_TIMER, 0x60); + + udelay(10 * 1000); + } + return card_number; +} + +/* MII transceiver control section. + Read and write MII registers using software-generated serial MDIO + protocol. See the MII specifications or DP83840A data sheet for details. + + The maximum data clock rate is 2.5 Mhz. To meet minimum timing we + must flush writes to the PCI bus with a PCI read. */ +#define mdio_delay(mdio_addr) INL(dev, mdio_addr) + +#define MDIO_EnbIn (0) +#define MDIO_WRITE0 (MDIO_EnbOutput) +#define MDIO_WRITE1 (MDIO_Data | MDIO_EnbOutput) + +/* Generate the preamble required for initial synchronization and + a few older transceivers. */ +static void +mdio_sync(struct eth_device *dev, u32 offset) +{ + int bits = 32; + + /* Establish sync by sending at least 32 logic ones. */ + while (--bits >= 0) { + OUTL(dev, MDIO_WRITE1, offset); + mdio_delay(offset); + OUTL(dev, MDIO_WRITE1 | MDIO_ShiftClk, offset); + mdio_delay(offset); + } +} + +static int +mdio_read(struct eth_device *dev, int phy_id, int addr) +{ + int mii_cmd = (0xf6 << 10) | (phy_id << 5) | addr; + int i, retval = 0; + + /* Shift the read command bits out. */ + for (i = 15; i >= 0; i--) { + int dataval = (mii_cmd & (1 << i)) ? MDIO_WRITE1 : MDIO_WRITE0; + + OUTL(dev, dataval, EECtrl); + mdio_delay(EECtrl); + OUTL(dev, dataval | MDIO_ShiftClk, EECtrl); + mdio_delay(EECtrl); + } + /* Read the two transition, 16 data, and wire-idle bits. */ + for (i = 19; i > 0; i--) { + OUTL(dev, MDIO_EnbIn, EECtrl); + mdio_delay(EECtrl); + retval = + (retval << 1) | ((INL(dev, EECtrl) & MDIO_Data) ? 1 : 0); + OUTL(dev, MDIO_EnbIn | MDIO_ShiftClk, EECtrl); + mdio_delay(EECtrl); + } + return (retval >> 1) & 0xffff; +} + +static void +mdio_write(struct eth_device *dev, int phy_id, int addr, int value) +{ + int mii_cmd = (0x5002 << 16) | (phy_id << 23) | (addr << 18) | value; + int i; + + /* Shift the command bits out. */ + for (i = 31; i >= 0; i--) { + int dataval = (mii_cmd & (1 << i)) ? MDIO_WRITE1 : MDIO_WRITE0; + + OUTL(dev, dataval, EECtrl); + mdio_delay(EECtrl); + OUTL(dev, dataval | MDIO_ShiftClk, EECtrl); + mdio_delay(EECtrl); + } + /* Clear out extra bits. */ + for (i = 2; i > 0; i--) { + OUTL(dev, MDIO_EnbIn, EECtrl); + mdio_delay(EECtrl); + OUTL(dev, MDIO_EnbIn | MDIO_ShiftClk, EECtrl); + mdio_delay(EECtrl); + } + return; +} + +/* Function: ns8382x_init + * Description: resets the ethernet controller chip and configures + * registers and data structures required for sending and receiving packets. + * Arguments: struct eth_device *dev: NIC data structure + * returns: int. + */ + +static int +ns8382x_init(struct eth_device *dev, bd_t * bis) +{ + u32 config; + + ns8382x_reset(dev); + + /* Disable PME: + * The PME bit is initialized from the EEPROM contents. + * PCI cards probably have PME disabled, but motherboard + * implementations may have PME set to enable WakeOnLan. + * With PME set the chip will scan incoming packets but + * nothing will be written to memory. */ + OUTL(dev, SavedClkRun & ~0x100, ClkRun); + + ns8382x_init_rxfilter(dev); + ns8382x_init_txd(dev); + ns8382x_init_rxd(dev); + + /*set up ChipConfig */ + config = INL(dev, ChipConfig); + /*turn off 64 bit ops && Ten-bit interface + * && big-endian mode && extended status */ + config &= ~(TBIEn | Mode1000 | T64En | D64En | M64En | BEMode | PhyDis | ExtStEn); + OUTL(dev, config, ChipConfig); + + /* Configure the PCI bus bursts and FIFO thresholds. */ + tx_config = TxCarrierIgn | TxHeartIgn | TxAutoPad + | TxCollRetry | TxMxdma_1024 | (0x1002); + rx_config = RxMxdma_1024 | 0x20; +#ifdef NS8382X_DEBUG + printf("%s: Setting TxConfig Register %#08X\n", dev->name, tx_config); + printf("%s: Setting RxConfig Register %#08X\n", dev->name, rx_config); +#endif + OUTL(dev, tx_config, TxConfig); + OUTL(dev, rx_config, RxConfig); + + /*turn off priority queueing */ + OUTL(dev, 0x0, PriQueue); + + ns8382x_check_duplex(dev); + ns8382x_set_rx_mode(dev); + + OUTL(dev, (RxOn | TxOn), ChipCmd); + return 1; +} + +/* Function: ns8382x_reset + * Description: soft resets the controller chip + * Arguments: struct eth_device *dev: NIC data structure + * Returns: void. + */ +static void +ns8382x_reset(struct eth_device *dev) +{ + OUTL(dev, ChipReset, ChipCmd); + while (INL(dev, ChipCmd)) + /*wait until done */ ; + OUTL(dev, 0, IntrMask); + OUTL(dev, 0, IntrEnable); +} + +/* Function: ns8382x_init_rxfilter + * Description: sets receive filter address to our MAC address + * Arguments: struct eth_device *dev: NIC data structure + * returns: void. + */ + +static void +ns8382x_init_rxfilter(struct eth_device *dev) +{ + int i; + + for (i = 0; i < ETH_ALEN; i += 2) { + OUTL(dev, i, RxFilterAddr); + OUTW(dev, dev->enetaddr[i] + (dev->enetaddr[i + 1] << 8), + RxFilterData); + } +} + +/* Function: ns8382x_init_txd + * Description: initializes the Tx descriptor + * Arguments: struct eth_device *dev: NIC data structure + * returns: void. + */ + +static void +ns8382x_init_txd(struct eth_device *dev) +{ + txd.link = (u32) 0; + txd.bufptr = cpu_to_le32((u32) & txb[0]); + txd.cmdsts = (u32) 0; + txd.extsts = (u32) 0; + + OUTL(dev, 0x0, TxRingPtrHi); + OUTL(dev, phys_to_bus((u32)&txd), TxRingPtr); +#ifdef NS8382X_DEBUG + printf("ns8382x_init_txd: TX descriptor register loaded with: %#08X (&txd: %p)\n", + INL(dev, TxRingPtr), &txd); +#endif +} + +/* Function: ns8382x_init_rxd + * Description: initializes the Rx descriptor ring + * Arguments: struct eth_device *dev: NIC data structure + * Returns: void. + */ + +static void +ns8382x_init_rxd(struct eth_device *dev) +{ + int i; + + OUTL(dev, 0x0, RxRingPtrHi); + + cur_rx = 0; + for (i = 0; i < NUM_RX_DESC; i++) { + rxd[i].link = + cpu_to_le32((i + 1 < + NUM_RX_DESC) ? (u32) & rxd[i + + 1] : (u32) & + rxd[0]); + rxd[i].extsts = cpu_to_le32((u32) 0x0); + rxd[i].cmdsts = cpu_to_le32((u32) RX_BUF_SIZE); + rxd[i].bufptr = cpu_to_le32((u32) & rxb[i * RX_BUF_SIZE]); +#ifdef NS8382X_DEBUG + printf + ("ns8382x_init_rxd: rxd[%d]=%p link=%X cmdsts=%X bufptr=%X\n", + i, &rxd[i], le32_to_cpu(rxd[i].link), + le32_to_cpu(rxd[i].cmdsts), le32_to_cpu(rxd[i].bufptr)); +#endif + } + OUTL(dev, phys_to_bus((u32) & rxd), RxRingPtr); + +#ifdef NS8382X_DEBUG + printf("ns8382x_init_rxd: RX descriptor register loaded with: %X\n", + INL(dev, RxRingPtr)); +#endif +} + +/* Function: ns8382x_set_rx_mode + * Description: + * sets the receive mode to accept all broadcast packets and packets + * with our MAC address, and reject all multicast packets. + * Arguments: struct eth_device *dev: NIC data structure + * Returns: void. + */ + +static void +ns8382x_set_rx_mode(struct eth_device *dev) +{ + u32 rx_mode = 0x0; + /*spec says RxFilterEnable has to be 0 for rest of + * this stuff to be properly configured. Linux driver + * seems to support this*/ +/* OUTL(dev, rx_mode, RxFilterAddr);*/ + rx_mode = (RxFilterEnable | AcceptAllBroadcast | AcceptPerfectMatch); + OUTL(dev, rx_mode, RxFilterAddr); + printf("ns8382x_set_rx_mode: set to %X\n", rx_mode); + /*now we turn RxFilterEnable back on */ + /*rx_mode |= RxFilterEnable; + OUTL(dev, rx_mode, RxFilterAddr);*/ +} + +static void +ns8382x_check_duplex(struct eth_device *dev) +{ + int gig = 0; + int hun = 0; + int duplex = 0; + int config = (INL(dev, ChipConfig) ^ SpeedStatus_Polarity); + + duplex = (config & FullDuplex) ? 1 : 0; + gig = (config & GigSpeed) ? 1 : 0; + hun = (config & HundSpeed) ? 1 : 0; +#ifdef NS8382X_DEBUG + printf("%s: Setting 10%s %s-duplex based on negotiated link" + " capability.\n", dev->name, (gig) ? "00" : (hun) ? "0" : "", + duplex ? "full" : "half"); +#endif + if (duplex) { + rx_config |= RxAcceptTx; + tx_config |= (TxCarrierIgn | TxHeartIgn); + } else { + rx_config &= ~RxAcceptTx; + tx_config &= ~(TxCarrierIgn | TxHeartIgn); + } +#ifdef NS8382X_DEBUG + printf("%s: Resetting TxConfig Register %#08X\n", dev->name, tx_config); + printf("%s: Resetting RxConfig Register %#08X\n", dev->name, rx_config); +#endif + OUTL(dev, tx_config, TxConfig); + OUTL(dev, rx_config, RxConfig); + + /*if speed is 10 or 100, remove MODE1000, + * if it's 1000, then set it */ + config = INL(dev, ChipConfig); + if (gig) + config |= Mode1000; + else + config &= ~Mode1000; + +#ifdef NS8382X_DEBUG + printf("%s: %setting Mode1000\n", dev->name, (gig) ? "S" : "Uns"); +#endif + OUTL(dev, config, ChipConfig); +} + +/* Function: ns8382x_send + * Description: transmits a packet and waits for completion or timeout. + * Returns: void. */ +static int +ns8382x_send(struct eth_device *dev, volatile void *packet, int length) +{ + u32 i, status = 0; + u32 tx_stat = 0; + + /* Stop the transmitter */ + OUTL(dev, TxOff, ChipCmd); +#ifdef NS8382X_DEBUG + printf("ns8382x_send: sending %d bytes\n", (int)length); +#endif + + /* set the transmit buffer descriptor and enable Transmit State Machine */ + txd.link = cpu_to_le32(0x0); + txd.bufptr = cpu_to_le32(phys_to_bus((u32)packet)); + txd.extsts = cpu_to_le32(0x0); + txd.cmdsts = cpu_to_le32(DescOwn | length); + + /* load Transmit Descriptor Register */ + OUTL(dev, phys_to_bus((u32) & txd), TxRingPtr); +#ifdef NS8382X_DEBUG + printf("ns8382x_send: TX descriptor register loaded with: %#08X\n", + INL(dev, TxRingPtr)); + printf("\ttxd.link:%X\tbufp:%X\texsts:%X\tcmdsts:%X\n", + le32_to_cpu(txd.link), le32_to_cpu(txd.bufptr), + le32_to_cpu(txd.extsts), le32_to_cpu(txd.cmdsts)); +#endif + /* restart the transmitter */ + OUTL(dev, TxOn, ChipCmd); + + for (i = 0; ((vu_long)tx_stat = le32_to_cpu(txd.cmdsts)) & DescOwn; i++) { + if (i >= TOUT_LOOP) { + printf ("%s: tx error buffer not ready: txd.cmdsts %#X\n", + dev->name, tx_stat); + goto Done; + } + } + + if (!(tx_stat & DescPktOK)) { + printf("ns8382x_send: Transmit error, Tx status %X.\n", tx_stat); + goto Done; + } +#ifdef NS8382X_DEBUG + printf("ns8382x_send: tx_stat: %#08X\n", tx_stat); +#endif + + status = 1; + Done: + return status; +} + +/* Function: ns8382x_poll + * Description: checks for a received packet and returns it if found. + * Arguments: struct eth_device *dev: NIC data structure + * Returns: 1 if packet was received. + * 0 if no packet was received. + * Side effects: + * Returns (copies) the packet to the array dev->packet. + * Returns the length of the packet. + */ + +static int +ns8382x_poll(struct eth_device *dev) +{ + int retstat = 0; + int length = 0; + vu_long rx_status = le32_to_cpu(rxd[cur_rx].cmdsts); + + if (!(rx_status & (u32) DescOwn)) + return retstat; +#ifdef NS8382X_DEBUG + printf("ns8382x_poll: got a packet: cur_rx:%u, status:%lx\n", + cur_rx, rx_status); +#endif + length = (rx_status & DSIZE) - CRC_SIZE; + + if ((rx_status & (DescMore | DescPktOK | DescRxLong)) != DescPktOK) { + /* corrupted packet received */ + printf("ns8382x_poll: Corrupted packet, status:%lx\n", rx_status); + retstat = 0; + } else { + /* give packet to higher level routine */ + NetReceive((rxb + cur_rx * RX_BUF_SIZE), length); + retstat = 1; + } + + /* return the descriptor and buffer to receive ring */ + rxd[cur_rx].cmdsts = cpu_to_le32(RX_BUF_SIZE); + rxd[cur_rx].bufptr = cpu_to_le32((u32) & rxb[cur_rx * RX_BUF_SIZE]); + + if (++cur_rx == NUM_RX_DESC) + cur_rx = 0; + + /* re-enable the potentially idle receive state machine */ + OUTL(dev, RxOn, ChipCmd); + + return retstat; +} + +/* Function: ns8382x_disable + * Description: Turns off interrupts and stops Tx and Rx engines + * Arguments: struct eth_device *dev: NIC data structure + * Returns: void. + */ + +static void +ns8382x_disable(struct eth_device *dev) +{ + /* Disable interrupts using the mask. */ + OUTL(dev, 0, IntrMask); + OUTL(dev, 0, IntrEnable); + + /* Stop the chip's Tx and Rx processes. */ + OUTL(dev, (RxOff | TxOff), ChipCmd); + + /* Restore PME enable bit */ + OUTL(dev, SavedClkRun, ClkRun); +} + +#endif diff --git a/drivers/smc91111.c b/drivers/smc91111.c new file mode 100644 index 0000000..62d2133 --- /dev/null +++ b/drivers/smc91111.c @@ -0,0 +1,1383 @@ +/*------------------------------------------------------------------------ + . smc91111.c + . This is a driver for SMSC's 91C111 single-chip Ethernet device. + . + . (C) Copyright 2002 + . Sysgo Real-Time Solutions, GmbH <www.elinos.com> + . Rolf Offermanns <rof@sysgo.de> + . + . Copyright (C) 2001 Standard Microsystems Corporation (SMSC) + . Developed by Simple Network Magic Corporation (SNMC) + . Copyright (C) 1996 by Erik Stahlman (ES) + . + . 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 + . + . Information contained in this file was obtained from the LAN91C111 + . manual from SMC. To get a copy, if you really want one, you can find + . information under www.smsc.com. + . + . + . "Features" of the SMC chip: + . Integrated PHY/MAC for 10/100BaseT Operation + . Supports internal and external MII + . Integrated 8K packet memory + . EEPROM interface for configuration + . + . Arguments: + . io = for the base address + . irq = for the IRQ + . + . author: + . Erik Stahlman ( erik@vt.edu ) + . Daris A Nevil ( dnevil@snmc.com ) + . + . + . Hardware multicast code from Peter Cammaert ( pc@denkart.be ) + . + . Sources: + . o SMSC LAN91C111 databook (www.smsc.com) + . o smc9194.c by Erik Stahlman + . o skeleton.c by Donald Becker ( becker@cesdis.gsfc.nasa.gov ) + . + . History: + . 10/17/01 Marco Hasewinkel Modify for DNP/1110 + . 07/25/01 Woojung Huh Modify for ADS Bitsy + . 04/25/01 Daris A Nevil Initial public release through SMSC + . 03/16/01 Daris A Nevil Modified smc9194.c for use with LAN91C111 + ----------------------------------------------------------------------------*/ + +#include <common.h> +#include <command.h> +#include "smc91111.h" +#include <net.h> + +#ifdef CONFIG_DRIVER_SMC91111 + +/* Use power-down feature of the chip */ +#define POWER_DOWN 0 + +#define NO_AUTOPROBE + +static const char version[] = + "smc91111.c:v1.0 04/25/01 by Daris A Nevil (dnevil@snmc.com)\n"; + +#define SMC_DEBUG 0 + +/*------------------------------------------------------------------------ + . + . Configuration options, for the experienced user to change. + . + -------------------------------------------------------------------------*/ + +/* + . Wait time for memory to be free. This probably shouldn't be + . tuned that much, as waiting for this means nothing else happens + . in the system +*/ +#define MEMORY_WAIT_TIME 16 + + +#if (SMC_DEBUG > 2 ) +#define PRINTK3(args...) printf(args) +#else +#define PRINTK3(args...) +#endif + +#if SMC_DEBUG > 1 +#define PRINTK2(args...) printf(args) +#else +#define PRINTK2(args...) +#endif + +#ifdef SMC_DEBUG +#define PRINTK(args...) printf(args) +#else +#define PRINTK(args...) +#endif + + +/*------------------------------------------------------------------------ + . + . The internal workings of the driver. If you are changing anything + . here with the SMC stuff, you should have the datasheet and know + . what you are doing. + . + -------------------------------------------------------------------------*/ +#define CARDNAME "LAN91C111" + +/* Memory sizing constant */ +#define LAN91C111_MEMORY_MULTIPLIER (1024*2) + +#ifndef CONFIG_SMC91111_BASE +#define CONFIG_SMC91111_BASE 0x20000300 +#endif + +#define SMC_BASE_ADDRESS CONFIG_SMC91111_BASE + +#define SMC_DEV_NAME "SMC91111" +#define SMC_PHY_ADDR 0x0000 +#define SMC_ALLOC_MAX_TRY 5 +#define SMC_TX_TIMEOUT 30 + +#define SMC_PHY_CLOCK_DELAY 1000 + +#define ETH_ZLEN 60 + +#ifdef CONFIG_SMC_USE_32_BIT +#define USE_32_BIT 1 +#else +#undef USE_32_BIT +#endif +/*----------------------------------------------------------------- + . + . The driver can be entered at any of the following entry points. + . + .------------------------------------------------------------------ */ + +extern int eth_init(bd_t *bd); +extern void eth_halt(void); +extern int eth_rx(void); +extern int eth_send(volatile void *packet, int length); + + + + + +/* + . This is called by register_netdev(). It is responsible for + . checking the portlist for the SMC9000 series chipset. If it finds + . one, then it will initialize the device, find the hardware information, + . and sets up the appropriate device parameters. + . NOTE: Interrupts are *OFF* when this procedure is called. + . + . NB:This shouldn't be static since it is referred to externally. +*/ +int smc_init(void); + +/* + . This is called by unregister_netdev(). It is responsible for + . cleaning up before the driver is finally unregistered and discarded. +*/ +void smc_destructor(void); + +/* + . The kernel calls this function when someone wants to use the device, + . typically 'ifconfig ethX up'. +*/ +static int smc_open(void); + + +/* + . This is called by the kernel in response to 'ifconfig ethX down'. It + . is responsible for cleaning up everything that the open routine + . does, and maybe putting the card into a powerdown state. +*/ +static int smc_close(void); + +/* + . Configures the PHY through the MII Management interface +*/ +#ifndef CONFIG_SMC91111_EXT_PHY +static void smc_phy_configure(void); +#endif /* !CONFIG_SMC91111_EXT_PHY */ + +/* + . This is a separate procedure to handle the receipt of a packet, to + . leave the interrupt code looking slightly cleaner +*/ +static int smc_rcv(void); + + + +/* + ------------------------------------------------------------ + . + . Internal routines + . + ------------------------------------------------------------ +*/ + +static char smc_mac_addr[] = {0x02, 0x80, 0xad, 0x20, 0x31, 0xb8}; + +/* + * This function must be called before smc_open() if you want to override + * the default mac address. + */ + +void smc_set_mac_addr(const char *addr) { + int i; + + for (i=0; i < sizeof(smc_mac_addr); i++){ + smc_mac_addr[i] = addr[i]; + } +} + +/* + * smc_get_macaddr is no longer used. If you want to override the default + * mac address, call smc_get_mac_addr as a part of the board initialisation. + */ + +#if 0 +void smc_get_macaddr( byte *addr ) { + /* MAC ADDRESS AT FLASHBLOCK 1 / OFFSET 0x10 */ + unsigned char *dnp1110_mac = (unsigned char *) (0xE8000000 + 0x20010); + int i; + + + for (i=0; i<6; i++) { + addr[0] = *(dnp1110_mac+0); + addr[1] = *(dnp1110_mac+1); + addr[2] = *(dnp1110_mac+2); + addr[3] = *(dnp1110_mac+3); + addr[4] = *(dnp1110_mac+4); + addr[5] = *(dnp1110_mac+5); + } +} +#endif /* 0 */ + +/*********************************************** + * Show available memory * + ***********************************************/ +void dump_memory_info(void) +{ + word mem_info; + word old_bank; + + old_bank = SMC_inw(BANK_SELECT)&0xF; + + SMC_SELECT_BANK(0); + mem_info = SMC_inw( MIR_REG ); + PRINTK2("Memory: %4d available\n", (mem_info >> 8)*2048); + + SMC_SELECT_BANK(old_bank); +} +/* + . A rather simple routine to print out a packet for debugging purposes. +*/ +#if SMC_DEBUG > 2 +static void print_packet( byte *, int ); +#endif + +#define tx_done(dev) 1 + + + +/* this does a soft reset on the device */ +static void smc_reset( void ); + +/* Enable Interrupts, Receive, and Transmit */ +static void smc_enable( void ); + +/* this puts the device in an inactive state */ +static void smc_shutdown( void ); + +/* Routines to Read and Write the PHY Registers across the + MII Management Interface +*/ + +#ifndef CONFIG_SMC91111_EXT_PHY +static word smc_read_phy_register(byte phyreg); +static void smc_write_phy_register(byte phyreg, word phydata); +#endif /* !CONFIG_SMC91111_EXT_PHY */ + + +static int poll4int( byte mask, int timeout ) { + int tmo = get_timer(0) + timeout * CFG_HZ; + int is_timeout = 0; + word old_bank = SMC_inw(BSR_REG); + + PRINTK2("Polling...\n"); + SMC_SELECT_BANK(2); + while((SMC_inw(SMC91111_INT_REG) & mask) == 0) + { + if (get_timer(0) >= tmo) { + is_timeout = 1; + break; + } + } + + /* restore old bank selection */ + SMC_SELECT_BANK(old_bank); + + if (is_timeout) + return 1; + else + return 0; +} + +/* + . Function: smc_reset( void ) + . Purpose: + . This sets the SMC91111 chip to its normal state, hopefully from whatever + . mess that any other DOS driver has put it in. + . + . Maybe I should reset more registers to defaults in here? SOFTRST should + . do that for me. + . + . Method: + . 1. send a SOFT RESET + . 2. wait for it to finish + . 3. enable autorelease mode + . 4. reset the memory management unit + . 5. clear all interrupts + . +*/ +static void smc_reset( void ) +{ + PRINTK2("%s:smc_reset\n", SMC_DEV_NAME); + + /* This resets the registers mostly to defaults, but doesn't + affect EEPROM. That seems unnecessary */ + SMC_SELECT_BANK( 0 ); + SMC_outw( RCR_SOFTRST, RCR_REG ); + + /* Setup the Configuration Register */ + /* This is necessary because the CONFIG_REG is not affected */ + /* by a soft reset */ + + SMC_SELECT_BANK( 1 ); +#if defined(CONFIG_SMC91111_EXT_PHY) + SMC_outw( CONFIG_DEFAULT | CONFIG_EXT_PHY, CONFIG_REG); +#else + SMC_outw( CONFIG_DEFAULT, CONFIG_REG); +#endif + + + /* Release from possible power-down state */ + /* Configuration register is not affected by Soft Reset */ + SMC_outw( SMC_inw( CONFIG_REG ) | CONFIG_EPH_POWER_EN, CONFIG_REG ); + + SMC_SELECT_BANK( 0 ); + + /* this should pause enough for the chip to be happy */ + udelay(10); + + /* Disable transmit and receive functionality */ + SMC_outw( RCR_CLEAR, RCR_REG ); + SMC_outw( TCR_CLEAR, TCR_REG ); + + /* set the control register */ + SMC_SELECT_BANK( 1 ); + SMC_outw( CTL_DEFAULT, CTL_REG ); + + /* Reset the MMU */ + SMC_SELECT_BANK( 2 ); + SMC_outw( MC_RESET, MMU_CMD_REG ); + while ( SMC_inw( MMU_CMD_REG ) & MC_BUSY ) + udelay(1); /* Wait until not busy */ + + /* Note: It doesn't seem that waiting for the MMU busy is needed here, + but this is a place where future chipsets _COULD_ break. Be wary + of issuing another MMU command right after this */ + + /* Disable all interrupts */ + SMC_outb( 0, IM_REG ); +} + +/* + . Function: smc_enable + . Purpose: let the chip talk to the outside work + . Method: + . 1. Enable the transmitter + . 2. Enable the receiver + . 3. Enable interrupts +*/ +static void smc_enable() +{ + PRINTK2("%s:smc_enable\n", SMC_DEV_NAME); + SMC_SELECT_BANK( 0 ); + /* see the header file for options in TCR/RCR DEFAULT*/ + SMC_outw( TCR_DEFAULT, TCR_REG ); + SMC_outw( RCR_DEFAULT, RCR_REG ); + + /* clear MII_DIS */ +/* smc_write_phy_register(PHY_CNTL_REG, 0x0000); */ +} + +/* + . Function: smc_shutdown + . Purpose: closes down the SMC91xxx chip. + . Method: + . 1. zero the interrupt mask + . 2. clear the enable receive flag + . 3. clear the enable xmit flags + . + . TODO: + . (1) maybe utilize power down mode. + . Why not yet? Because while the chip will go into power down mode, + . the manual says that it will wake up in response to any I/O requests + . in the register space. Empirical results do not show this working. +*/ +static void smc_shutdown() +{ + PRINTK2(CARDNAME ":smc_shutdown\n"); + + /* no more interrupts for me */ + SMC_SELECT_BANK( 2 ); + SMC_outb( 0, IM_REG ); + + /* and tell the card to stay away from that nasty outside world */ + SMC_SELECT_BANK( 0 ); + SMC_outb( RCR_CLEAR, RCR_REG ); + SMC_outb( TCR_CLEAR, TCR_REG ); +} + + +/* + . Function: smc_hardware_send_packet(struct net_device * ) + . Purpose: + . This sends the actual packet to the SMC9xxx chip. + . + . Algorithm: + . First, see if a saved_skb is available. + . ( this should NOT be called if there is no 'saved_skb' + . Now, find the packet number that the chip allocated + . Point the data pointers at it in memory + . Set the length word in the chip's memory + . Dump the packet to chip memory + . Check if a last byte is needed ( odd length packet ) + . if so, set the control flag right + . Tell the card to send it + . Enable the transmit interrupt, so I know if it failed + . Free the kernel data if I actually sent it. +*/ +static int smc_send_packet(volatile void *packet, int packet_length) +{ + byte packet_no; + unsigned long ioaddr; + byte * buf; + int length; + int numPages; + int try = 0; + int time_out; + byte status; + + + PRINTK3("%s:smc_hardware_send_packet\n", SMC_DEV_NAME); + + length = ETH_ZLEN < packet_length ? packet_length : ETH_ZLEN; + + /* allocate memory + ** The MMU wants the number of pages to be the number of 256 bytes + ** 'pages', minus 1 ( since a packet can't ever have 0 pages :) ) + ** + ** The 91C111 ignores the size bits, but the code is left intact + ** for backwards and future compatibility. + ** + ** Pkt size for allocating is data length +6 (for additional status + ** words, length and ctl!) + ** + ** If odd size then last byte is included in this header. + */ + numPages = ((length & 0xfffe) + 6); + numPages >>= 8; /* Divide by 256 */ + + if (numPages > 7 ) { + printf("%s: Far too big packet error. \n", SMC_DEV_NAME); + return 0; + } + + /* now, try to allocate the memory */ + SMC_SELECT_BANK( 2 ); + SMC_outw( MC_ALLOC | numPages, MMU_CMD_REG ); + +again: + try++; + time_out = MEMORY_WAIT_TIME; + do { + status = SMC_inb( SMC91111_INT_REG ); + if ( status & IM_ALLOC_INT ) { + /* acknowledge the interrupt */ + SMC_outb( IM_ALLOC_INT, SMC91111_INT_REG ); + break; + } + } while ( -- time_out ); + + if ( !time_out ) { + PRINTK2("%s: memory allocation, try %d failed ...\n", + SMC_DEV_NAME, try); + if (try < SMC_ALLOC_MAX_TRY) + goto again; + else + return 0; + } + + PRINTK2("%s: memory allocation, try %d succeeded ...\n", + SMC_DEV_NAME, + try); + + /* I can send the packet now.. */ + + ioaddr = SMC_BASE_ADDRESS; + + buf = (byte *)packet; + + /* If I get here, I _know_ there is a packet slot waiting for me */ + packet_no = SMC_inb( AR_REG ); + if ( packet_no & AR_FAILED ) { + /* or isn't there? BAD CHIP! */ + printf("%s: Memory allocation failed. \n", + SMC_DEV_NAME); + return 0; + } + + /* we have a packet address, so tell the card to use it */ + SMC_outb( packet_no, PN_REG ); + + /* point to the beginning of the packet */ + SMC_outw( PTR_AUTOINC , PTR_REG ); + + PRINTK3("%s: Trying to xmit packet of length %x\n", + SMC_DEV_NAME, length); + +#if SMC_DEBUG > 2 + printf("Transmitting Packet\n"); + print_packet( buf, length ); +#endif + + /* send the packet length ( +6 for status, length and ctl byte ) + and the status word ( set to zeros ) */ +#ifdef USE_32_BIT + SMC_outl( (length +6 ) << 16 , SMC91111_DATA_REG ); +#else + SMC_outw( 0, SMC91111_DATA_REG ); + /* send the packet length ( +6 for status words, length, and ctl*/ + SMC_outw( (length+6), SMC91111_DATA_REG ); +#endif + + /* send the actual data + . I _think_ it's faster to send the longs first, and then + . mop up by sending the last word. It depends heavily + . on alignment, at least on the 486. Maybe it would be + . a good idea to check which is optimal? But that could take + . almost as much time as is saved? + */ +#ifdef USE_32_BIT + SMC_outsl(SMC91111_DATA_REG, buf, length >> 2 ); + if ( length & 0x2 ) + SMC_outw(*((word *)(buf + (length & 0xFFFFFFFC))), SMC91111_DATA_REG); +#else + SMC_outsw(SMC91111_DATA_REG , buf, (length ) >> 1); +#endif /* USE_32_BIT */ + + /* Send the last byte, if there is one. */ + if ( (length & 1) == 0 ) { + SMC_outw( 0, SMC91111_DATA_REG ); + } else { + SMC_outw( buf[length -1 ] | 0x2000, SMC91111_DATA_REG ); + } + + /* and let the chipset deal with it */ + SMC_outw( MC_ENQUEUE , MMU_CMD_REG ); + + /* poll for TX INT */ + if (poll4int(IM_TX_INT, SMC_TX_TIMEOUT)) { + /* sending failed */ + PRINTK2("%s: TX timeout, sending failed...\n", + SMC_DEV_NAME); + + /* release packet */ + SMC_outw(MC_FREEPKT, MMU_CMD_REG); + + /* wait for MMU getting ready (low) */ + while (SMC_inw(MMU_CMD_REG) & MC_BUSY) + { + udelay(10); + } + + PRINTK2("MMU ready\n"); + + + return 0; + } else { + /* ack. int */ + SMC_outw(IM_TX_INT, SMC91111_INT_REG); + PRINTK2("%s: Sent packet of length %d \n", SMC_DEV_NAME, length); + + /* release packet */ + SMC_outw(MC_FREEPKT, MMU_CMD_REG); + + /* wait for MMU getting ready (low) */ + while (SMC_inw(MMU_CMD_REG) & MC_BUSY) + { + udelay(10); + } + + PRINTK2("MMU ready\n"); + + + } + + return length; +} + +/*------------------------------------------------------------------------- + | + | smc_destructor( struct net_device * dev ) + | Input parameters: + | dev, pointer to the device structure + | + | Output: + | None. + | + --------------------------------------------------------------------------- +*/ +void smc_destructor() +{ + PRINTK2(CARDNAME ":smc_destructor\n"); +} + + +/* + * Open and Initialize the board + * + * Set up everything, reset the card, etc .. + * + */ +static int smc_open() +{ + int i; /* used to set hw ethernet address */ + + PRINTK2("%s:smc_open\n", SMC_DEV_NAME); + + /* reset the hardware */ + + smc_reset(); + smc_enable(); + + /* Configure the PHY */ +#ifndef CONFIG_SMC91111_EXT_PHY + smc_phy_configure(); +#endif + + + /* conservative setting (10Mbps, HalfDuplex, no AutoNeg.) */ +/* SMC_SELECT_BANK(0); */ +/* SMC_outw(0, RPC_REG); */ + +#ifdef USE_32_BIT + for ( i = 0; i < 6; i += 2 ) { + word address; + + address = smc_mac_addr[ i + 1 ] << 8 ; + address |= smc_mac_addr[ i ]; + SMC_outw( address, ADDR0_REG + i ); + } +#else + for ( i = 0; i < 6; i ++ ) + SMC_outb( smc_mac_addr[i], ADDR0_REG + i ); +#endif + + return 0; +} + +#if 0 /* dead code? -- wd */ +#ifdef USE_32_BIT +void +insl32(r,b,l) +{ + int __i ; + dword *__b2; + + __b2 = (dword *) b; + for (__i = 0; __i < l; __i++) { + *(__b2 + __i) = *(dword *)(r+0x10000300); + } +} +#endif +#endif + +/*------------------------------------------------------------- + . + . smc_rcv - receive a packet from the card + . + . There is ( at least ) a packet waiting to be read from + . chip-memory. + . + . o Read the status + . o If an error, record it + . o otherwise, read in the packet + -------------------------------------------------------------- +*/ +static int smc_rcv() +{ + int packet_number; + word status; + word packet_length; + int is_error = 0; +#ifdef USE_32_BIT + dword stat_len; +#endif + + + SMC_SELECT_BANK(2); + packet_number = SMC_inw( RXFIFO_REG ); + + if ( packet_number & RXFIFO_REMPTY ) { + + return 0; + } + + PRINTK3("%s:smc_rcv\n", SMC_DEV_NAME); + /* start reading from the start of the packet */ + SMC_outw( PTR_READ | PTR_RCV | PTR_AUTOINC, PTR_REG ); + + /* First two words are status and packet_length */ +#ifdef USE_32_BIT + stat_len = SMC_inl(SMC91111_DATA_REG); + status = stat_len & 0xffff; + packet_length = stat_len >> 16; +#else + status = SMC_inw( SMC91111_DATA_REG ); + packet_length = SMC_inw( SMC91111_DATA_REG ); +#endif + + packet_length &= 0x07ff; /* mask off top bits */ + + PRINTK2("RCV: STATUS %4x LENGTH %4x\n", status, packet_length ); + + if ( !(status & RS_ERRORS ) ){ + /* Adjust for having already read the first two words */ + packet_length -= 4; /*4; */ + + + + /* set odd length for bug in LAN91C111, */ + /* which never sets RS_ODDFRAME */ + /* TODO ? */ + + +#ifdef USE_32_BIT + PRINTK3(" Reading %d dwords (and %d bytes) \n", + packet_length >> 2, packet_length & 3 ); + /* QUESTION: Like in the TX routine, do I want + to send the DWORDs or the bytes first, or some + mixture. A mixture might improve already slow PIO + performance */ + SMC_insl( SMC91111_DATA_REG , NetRxPackets[0], packet_length >> 2 ); + /* read the left over bytes */ + if (packet_length & 3) { + int i; + + byte *tail = NetRxPackets[0] + (packet_length & ~3); + dword leftover = SMC_inl(SMC91111_DATA_REG); + for (i=0; i<(packet_length & 3); i++) + *tail++ = (byte) (leftover >> (8*i)) & 0xff; + } +#else + PRINTK3(" Reading %d words and %d byte(s) \n", + (packet_length >> 1 ), packet_length & 1 ); + SMC_insw(SMC91111_DATA_REG , NetRxPackets[0], packet_length >> 1); + +#endif /* USE_32_BIT */ + +#if SMC_DEBUG > 2 + printf("Receiving Packet\n"); + print_packet( NetRxPackets[0], packet_length ); +#endif + } else { + /* error ... */ + /* TODO ? */ + is_error = 1; + } + + while ( SMC_inw( MMU_CMD_REG ) & MC_BUSY ) + udelay(1); /* Wait until not busy */ + + /* error or good, tell the card to get rid of this packet */ + SMC_outw( MC_RELEASE, MMU_CMD_REG ); + + while ( SMC_inw( MMU_CMD_REG ) & MC_BUSY ) + udelay(1); /* Wait until not busy */ + + if (!is_error) { + /* Pass the packet up to the protocol layers. */ + NetReceive(NetRxPackets[0], packet_length); + return packet_length; + } else { + return 0; + } + +} + + + +/*---------------------------------------------------- + . smc_close + . + . this makes the board clean up everything that it can + . and not talk to the outside world. Caused by + . an 'ifconfig ethX down' + . + -----------------------------------------------------*/ +static int smc_close() +{ + PRINTK2("%s:smc_close\n", SMC_DEV_NAME); + + /* clear everything */ + smc_shutdown(); + + return 0; +} + + +#if 0 +/*------------------------------------------------------------ + . Modify a bit in the LAN91C111 register set + .-------------------------------------------------------------*/ +static word smc_modify_regbit(int bank, int ioaddr, int reg, + unsigned int bit, int val) +{ + word regval; + + SMC_SELECT_BANK( bank ); + + regval = SMC_inw( reg ); + if (val) + regval |= bit; + else + regval &= ~bit; + + SMC_outw( regval, 0 ); + return(regval); +} + + +/*------------------------------------------------------------ + . Retrieve a bit in the LAN91C111 register set + .-------------------------------------------------------------*/ +static int smc_get_regbit(int bank, int ioaddr, int reg, unsigned int bit) +{ + SMC_SELECT_BANK( bank ); + if ( SMC_inw( reg ) & bit) + return(1); + else + return(0); +} + + +/*------------------------------------------------------------ + . Modify a LAN91C111 register (word access only) + .-------------------------------------------------------------*/ +static void smc_modify_reg(int bank, int ioaddr, int reg, word val) +{ + SMC_SELECT_BANK( bank ); + SMC_outw( val, reg ); +} + + +/*------------------------------------------------------------ + . Retrieve a LAN91C111 register (word access only) + .-------------------------------------------------------------*/ +static int smc_get_reg(int bank, int ioaddr, int reg) +{ + SMC_SELECT_BANK( bank ); + return(SMC_inw( reg )); +} + +#endif /* 0 */ + +/*---PHY CONTROL AND CONFIGURATION----------------------------------------- */ + +#if (SMC_DEBUG > 2 ) + +/*------------------------------------------------------------ + . Debugging function for viewing MII Management serial bitstream + .-------------------------------------------------------------*/ +static void smc_dump_mii_stream(byte* bits, int size) +{ + int i; + + printf("BIT#:"); + for (i = 0; i < size; ++i) + { + printf("%d", i%10); + } + + printf("\nMDOE:"); + for (i = 0; i < size; ++i) + { + if (bits[i] & MII_MDOE) + printf("1"); + else + printf("0"); + } + + printf("\nMDO :"); + for (i = 0; i < size; ++i) + { + if (bits[i] & MII_MDO) + printf("1"); + else + printf("0"); + } + + printf("\nMDI :"); + for (i = 0; i < size; ++i) + { + if (bits[i] & MII_MDI) + printf("1"); + else + printf("0"); + } + + printf("\n"); +} +#endif + +/*------------------------------------------------------------ + . Reads a register from the MII Management serial interface + .-------------------------------------------------------------*/ +#ifndef CONFIG_SMC91111_EXT_PHY +static word smc_read_phy_register(byte phyreg) +{ + int oldBank; + int i; + byte mask; + word mii_reg; + byte bits[64]; + int clk_idx = 0; + int input_idx; + word phydata; + byte phyaddr = SMC_PHY_ADDR; + + /* 32 consecutive ones on MDO to establish sync */ + for (i = 0; i < 32; ++i) + bits[clk_idx++] = MII_MDOE | MII_MDO; + + /* Start code <01> */ + bits[clk_idx++] = MII_MDOE; + bits[clk_idx++] = MII_MDOE | MII_MDO; + + /* Read command <10> */ + bits[clk_idx++] = MII_MDOE | MII_MDO; + bits[clk_idx++] = MII_MDOE; + + /* Output the PHY address, msb first */ + mask = (byte)0x10; + for (i = 0; i < 5; ++i) + { + if (phyaddr & mask) + bits[clk_idx++] = MII_MDOE | MII_MDO; + else + bits[clk_idx++] = MII_MDOE; + + /* Shift to next lowest bit */ + mask >>= 1; + } + + /* Output the phy register number, msb first */ + mask = (byte)0x10; + for (i = 0; i < 5; ++i) + { + if (phyreg & mask) + bits[clk_idx++] = MII_MDOE | MII_MDO; + else + bits[clk_idx++] = MII_MDOE; + + /* Shift to next lowest bit */ + mask >>= 1; + } + + /* Tristate and turnaround (2 bit times) */ + bits[clk_idx++] = 0; + /*bits[clk_idx++] = 0; */ + + /* Input starts at this bit time */ + input_idx = clk_idx; + + /* Will input 16 bits */ + for (i = 0; i < 16; ++i) + bits[clk_idx++] = 0; + + /* Final clock bit */ + bits[clk_idx++] = 0; + + /* Save the current bank */ + oldBank = SMC_inw( BANK_SELECT ); + + /* Select bank 3 */ + SMC_SELECT_BANK( 3 ); + + /* Get the current MII register value */ + mii_reg = SMC_inw( MII_REG ); + + /* Turn off all MII Interface bits */ + mii_reg &= ~(MII_MDOE|MII_MCLK|MII_MDI|MII_MDO); + + /* Clock all 64 cycles */ + for (i = 0; i < sizeof bits; ++i) + { + /* Clock Low - output data */ + SMC_outw( mii_reg | bits[i], MII_REG ); + udelay(SMC_PHY_CLOCK_DELAY); + + + /* Clock Hi - input data */ + SMC_outw( mii_reg | bits[i] | MII_MCLK, MII_REG ); + udelay(SMC_PHY_CLOCK_DELAY); + bits[i] |= SMC_inw( MII_REG ) & MII_MDI; + } + + /* Return to idle state */ + /* Set clock to low, data to low, and output tristated */ + SMC_outw( mii_reg, MII_REG ); + udelay(SMC_PHY_CLOCK_DELAY); + + /* Restore original bank select */ + SMC_SELECT_BANK( oldBank ); + + /* Recover input data */ + phydata = 0; + for (i = 0; i < 16; ++i) + { + phydata <<= 1; + + if (bits[input_idx++] & MII_MDI) + phydata |= 0x0001; + } + +#if (SMC_DEBUG > 2 ) + printf("smc_read_phy_register(): phyaddr=%x,phyreg=%x,phydata=%x\n", + phyaddr, phyreg, phydata); + smc_dump_mii_stream(bits, sizeof bits); +#endif + + return(phydata); +} + + +/*------------------------------------------------------------ + . Writes a register to the MII Management serial interface + .-------------------------------------------------------------*/ +static void smc_write_phy_register(byte phyreg, word phydata) +{ + int oldBank; + int i; + word mask; + word mii_reg; + byte bits[65]; + int clk_idx = 0; + byte phyaddr = SMC_PHY_ADDR; + + /* 32 consecutive ones on MDO to establish sync */ + for (i = 0; i < 32; ++i) + bits[clk_idx++] = MII_MDOE | MII_MDO; + + /* Start code <01> */ + bits[clk_idx++] = MII_MDOE; + bits[clk_idx++] = MII_MDOE | MII_MDO; + + /* Write command <01> */ + bits[clk_idx++] = MII_MDOE; + bits[clk_idx++] = MII_MDOE | MII_MDO; + + /* Output the PHY address, msb first */ + mask = (byte)0x10; + for (i = 0; i < 5; ++i) + { + if (phyaddr & mask) + bits[clk_idx++] = MII_MDOE | MII_MDO; + else + bits[clk_idx++] = MII_MDOE; + + /* Shift to next lowest bit */ + mask >>= 1; + } + + /* Output the phy register number, msb first */ + mask = (byte)0x10; + for (i = 0; i < 5; ++i) + { + if (phyreg & mask) + bits[clk_idx++] = MII_MDOE | MII_MDO; + else + bits[clk_idx++] = MII_MDOE; + + /* Shift to next lowest bit */ + mask >>= 1; + } + + /* Tristate and turnaround (2 bit times) */ + bits[clk_idx++] = 0; + bits[clk_idx++] = 0; + + /* Write out 16 bits of data, msb first */ + mask = 0x8000; + for (i = 0; i < 16; ++i) + { + if (phydata & mask) + bits[clk_idx++] = MII_MDOE | MII_MDO; + else + bits[clk_idx++] = MII_MDOE; + + /* Shift to next lowest bit */ + mask >>= 1; + } + + /* Final clock bit (tristate) */ + bits[clk_idx++] = 0; + + /* Save the current bank */ + oldBank = SMC_inw( BANK_SELECT ); + + /* Select bank 3 */ + SMC_SELECT_BANK( 3 ); + + /* Get the current MII register value */ + mii_reg = SMC_inw( MII_REG ); + + /* Turn off all MII Interface bits */ + mii_reg &= ~(MII_MDOE|MII_MCLK|MII_MDI|MII_MDO); + + /* Clock all cycles */ + for (i = 0; i < sizeof bits; ++i) + { + /* Clock Low - output data */ + SMC_outw( mii_reg | bits[i], MII_REG ); + udelay(SMC_PHY_CLOCK_DELAY); + + + /* Clock Hi - input data */ + SMC_outw( mii_reg | bits[i] | MII_MCLK, MII_REG ); + udelay(SMC_PHY_CLOCK_DELAY); + bits[i] |= SMC_inw( MII_REG ) & MII_MDI; + } + + /* Return to idle state */ + /* Set clock to low, data to low, and output tristated */ + SMC_outw( mii_reg, MII_REG ); + udelay(SMC_PHY_CLOCK_DELAY); + + /* Restore original bank select */ + SMC_SELECT_BANK( oldBank ); + +#if (SMC_DEBUG > 2 ) + printf("smc_write_phy_register(): phyaddr=%x,phyreg=%x,phydata=%x\n", + phyaddr, phyreg, phydata); + smc_dump_mii_stream(bits, sizeof bits); +#endif +} +#endif /* !CONFIG_SMC91111_EXT_PHY */ + + + +/*------------------------------------------------------------ + . Waits the specified number of milliseconds - kernel friendly + .-------------------------------------------------------------*/ +#ifndef CONFIG_SMC91111_EXT_PHY +static void smc_wait_ms(unsigned int ms) +{ + udelay(ms*1000); +} +#endif /* !CONFIG_SMC91111_EXT_PHY */ + + + +/*------------------------------------------------------------ + . Configures the specified PHY using Autonegotiation. Calls + . smc_phy_fixed() if the user has requested a certain config. + .-------------------------------------------------------------*/ +#ifndef CONFIG_SMC91111_EXT_PHY +static void smc_phy_configure() +{ + int timeout; + byte phyaddr; + word my_phy_caps; /* My PHY capabilities */ + word my_ad_caps; /* My Advertised capabilities */ + word status = 0; /*;my status = 0 */ + int failed = 0; + + PRINTK3("%s:smc_program_phy()\n", SMC_DEV_NAME); + + + + /* Get the detected phy address */ + phyaddr = SMC_PHY_ADDR; + + /* Reset the PHY, setting all other bits to zero */ + smc_write_phy_register(PHY_CNTL_REG, PHY_CNTL_RST); + + /* Wait for the reset to complete, or time out */ + timeout = 6; /* Wait up to 3 seconds */ + while (timeout--) + { + if (!(smc_read_phy_register(PHY_CNTL_REG) + & PHY_CNTL_RST)) + { + /* reset complete */ + break; + } + + smc_wait_ms(500); /* wait 500 millisecs */ + } + + if (timeout < 1) + { + printf("%s:PHY reset timed out\n", SMC_DEV_NAME); + goto smc_phy_configure_exit; + } + + /* Read PHY Register 18, Status Output */ + /* lp->lastPhy18 = smc_read_phy_register(PHY_INT_REG); */ + + /* Enable PHY Interrupts (for register 18) */ + /* Interrupts listed here are disabled */ + smc_write_phy_register(PHY_INT_REG, 0xffff); + + /* Configure the Receive/Phy Control register */ + SMC_SELECT_BANK( 0 ); + SMC_outw( RPC_DEFAULT, RPC_REG ); + + /* Copy our capabilities from PHY_STAT_REG to PHY_AD_REG */ + my_phy_caps = smc_read_phy_register(PHY_STAT_REG); + my_ad_caps = PHY_AD_CSMA; /* I am CSMA capable */ + + if (my_phy_caps & PHY_STAT_CAP_T4) + my_ad_caps |= PHY_AD_T4; + + if (my_phy_caps & PHY_STAT_CAP_TXF) + my_ad_caps |= PHY_AD_TX_FDX; + + if (my_phy_caps & PHY_STAT_CAP_TXH) + my_ad_caps |= PHY_AD_TX_HDX; + + if (my_phy_caps & PHY_STAT_CAP_TF) + my_ad_caps |= PHY_AD_10_FDX; + + if (my_phy_caps & PHY_STAT_CAP_TH) + my_ad_caps |= PHY_AD_10_HDX; + + /* Update our Auto-Neg Advertisement Register */ + smc_write_phy_register( PHY_AD_REG, my_ad_caps); + + PRINTK2("%s:phy caps=%x\n", SMC_DEV_NAME, my_phy_caps); + PRINTK2("%s:phy advertised caps=%x\n", SMC_DEV_NAME, my_ad_caps); + + /* Restart auto-negotiation process in order to advertise my caps */ + smc_write_phy_register( PHY_CNTL_REG, + PHY_CNTL_ANEG_EN | PHY_CNTL_ANEG_RST ); + + /* Wait for the auto-negotiation to complete. This may take from */ + /* 2 to 3 seconds. */ + /* Wait for the reset to complete, or time out */ + timeout = 20; /* Wait up to 10 seconds */ + while (timeout--) + { + status = smc_read_phy_register( PHY_STAT_REG); + if (status & PHY_STAT_ANEG_ACK) + { + /* auto-negotiate complete */ + break; + } + + smc_wait_ms(500); /* wait 500 millisecs */ + + /* Restart auto-negotiation if remote fault */ + if (status & PHY_STAT_REM_FLT) + { + printf("%s:PHY remote fault detected\n", SMC_DEV_NAME); + + /* Restart auto-negotiation */ + printf("%s:PHY restarting auto-negotiation\n", + SMC_DEV_NAME); + smc_write_phy_register( PHY_CNTL_REG, + PHY_CNTL_ANEG_EN | PHY_CNTL_ANEG_RST | + PHY_CNTL_SPEED | PHY_CNTL_DPLX); + } + } + + if (timeout < 1) + { + printf("%s:PHY auto-negotiate timed out\n", + SMC_DEV_NAME); + printf("%s:PHY auto-negotiate timed out\n", SMC_DEV_NAME); + failed = 1; + } + + /* Fail if we detected an auto-negotiate remote fault */ + if (status & PHY_STAT_REM_FLT) + { + printf( "%s:PHY remote fault detected\n", SMC_DEV_NAME); + printf("%s:PHY remote fault detected\n", SMC_DEV_NAME); + failed = 1; + } + + /* Re-Configure the Receive/Phy Control register */ + SMC_outw( RPC_DEFAULT, RPC_REG ); + + smc_phy_configure_exit: + +} +#endif /* !CONFIG_SMC91111_EXT_PHY */ + + +#if SMC_DEBUG > 2 +static void print_packet( byte * buf, int length ) +{ +#if 0 + int i; + int remainder; + int lines; + + printf("Packet of length %d \n", length ); + +#if SMC_DEBUG > 3 + lines = length / 16; + remainder = length % 16; + + for ( i = 0; i < lines ; i ++ ) { + int cur; + + for ( cur = 0; cur < 8; cur ++ ) { + byte a, b; + + a = *(buf ++ ); + b = *(buf ++ ); + printf("%02x%02x ", a, b ); + } + printf("\n"); + } + for ( i = 0; i < remainder/2 ; i++ ) { + byte a, b; + + a = *(buf ++ ); + b = *(buf ++ ); + printf("%02x%02x ", a, b ); + } + printf("\n"); +#endif +#endif +} +#endif + +int eth_init(bd_t *bd) { + smc_open(); + return 0; +} + +void eth_halt() { + smc_close(); +} + +int eth_rx() { + return smc_rcv(); +} + +int eth_send(volatile void *packet, int length) { + return smc_send_packet(packet, length); +} + +#endif /* CONFIG_DRIVER_SMC91111 */ diff --git a/drivers/smc91111.h b/drivers/smc91111.h new file mode 100644 index 0000000..a372c27 --- /dev/null +++ b/drivers/smc91111.h @@ -0,0 +1,619 @@ +/*------------------------------------------------------------------------ + . smc91111.h - macros for the LAN91C111 Ethernet Driver + . + . (C) Copyright 2002 + . Sysgo Real-Time Solutions, GmbH <www.elinos.com> + . Rolf Offermanns <rof@sysgo.de> + . Copyright (C) 2001 Standard Microsystems Corporation (SMSC) + . Developed by Simple Network Magic Corporation (SNMC) + . Copyright (C) 1996 by Erik Stahlman (ES) + . + . 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 + . + . This file contains register information and access macros for + . the LAN91C111 single chip ethernet controller. It is a modified + . version of the smc9194.h file. + . + . Information contained in this file was obtained from the LAN91C111 + . manual from SMC. To get a copy, if you really want one, you can find + . information under www.smsc.com. + . + . Authors + . Erik Stahlman ( erik@vt.edu ) + . Daris A Nevil ( dnevil@snmc.com ) + . + . History + . 03/16/01 Daris A Nevil Modified for use with LAN91C111 device + . + ---------------------------------------------------------------------------*/ +#ifndef _SMC91111_H_ +#define _SMC91111_H_ + +#include <asm/types.h> +#include <config.h> + +/* + * This function may be called by the board specific initialisation code + * in order to override the default mac address. + */ + +void smc_set_mac_addr(const char *addr); + + +/* I want some simple types */ + +typedef unsigned char byte; +typedef unsigned short word; +typedef unsigned long int dword; + +/* + . DEBUGGING LEVELS + . + . 0 for normal operation + . 1 for slightly more details + . >2 for various levels of increasingly useless information + . 2 for interrupt tracking, status flags + . 3 for packet info + . 4 for complete packet dumps +*/ +/*#define SMC_DEBUG 0 */ + +/* Because of bank switching, the LAN91xxx uses only 16 I/O ports */ + +#define SMC_IO_EXTENT 16 + +#ifdef CONFIG_PXA250 + +#define SMC_inl(r) (*((volatile dword *)(SMC_BASE_ADDRESS+(r)))) +#define SMC_inw(r) (*((volatile word *)(SMC_BASE_ADDRESS+(r)))) +#define SMC_inb(p) ({ \ + unsigned int __p = (unsigned int)(SMC_BASE_ADDRESS + (p)); \ + unsigned int __v = *(volatile unsigned short *)((SMC_BASE_ADDRESS + __p) & ~1); \ + if (__p & 1) __v >>= 8; \ + else __v &= 0xff; \ + __v; }) + +#define SMC_outl(d,r) (*((volatile dword *)(SMC_BASE_ADDRESS+(r))) = d) +#define SMC_outw(d,r) (*((volatile word *)(SMC_BASE_ADDRESS+(r))) = d) +#define SMC_outb(d,r) ({ word __d = (byte)(d); \ + word __w = SMC_inw((r)&~1); \ + __w &= ((r)&1) ? 0x00FF : 0xFF00; \ + __w |= ((r)&1) ? __d<<8 : __d; \ + SMC_outw(__w,(r)&~1); \ + }) + +#define SMC_outsl(r,b,l) ({ int __i; \ + dword *__b2; \ + __b2 = (dword *) b; \ + for (__i = 0; __i < l; __i++) { \ + SMC_outl( *(__b2 + __i), r); \ + } \ + }) + +#define SMC_outsw(r,b,l) ({ int __i; \ + word *__b2; \ + __b2 = (word *) b; \ + for (__i = 0; __i < l; __i++) { \ + SMC_outw( *(__b2 + __i), r); \ + } \ + }) + +#define SMC_insl(r,b,l) ({ int __i ; \ + dword *__b2; \ + __b2 = (dword *) b; \ + for (__i = 0; __i < l; __i++) { \ + *(__b2 + __i) = SMC_inl(r); \ + SMC_inl(0); \ + }; \ + }) + +#define SMC_insw(r,b,l) ({ int __i ; \ + word *__b2; \ + __b2 = (word *) b; \ + for (__i = 0; __i < l; __i++) { \ + *(__b2 + __i) = SMC_inw(r); \ + SMC_inw(0); \ + }; \ + }) + +#define SMC_insb(r,b,l) ({ int __i ; \ + byte *__b2; \ + __b2 = (byte *) b; \ + for (__i = 0; __i < l; __i++) { \ + *(__b2 + __i) = SMC_inb(r); \ + SMC_inb(0); \ + }; \ + }) + +#else /* if not CONFIG_PXA250 */ + +/* + * We have only 16 Bit PCMCIA access on Socket 0 + */ + +#define SMC_inw(r) (*((volatile word *)(SMC_BASE_ADDRESS+(r)))) +#define SMC_inb(r) (((r)&1) ? SMC_inw((r)&~1)>>8 : SMC_inw(r)&0xFF) + +#define SMC_outw(d,r) (*((volatile word *)(SMC_BASE_ADDRESS+(r))) = d) +#define SMC_outb(d,r) ({ word __d = (byte)(d); \ + word __w = SMC_inw((r)&~1); \ + __w &= ((r)&1) ? 0x00FF : 0xFF00; \ + __w |= ((r)&1) ? __d<<8 : __d; \ + SMC_outw(__w,(r)&~1); \ + }) +#if 0 +#define SMC_outsw(r,b,l) outsw(SMC_BASE_ADDRESS+(r), (b), (l)) +#else +#define SMC_outsw(r,b,l) ({ int __i; \ + word *__b2; \ + __b2 = (word *) b; \ + for (__i = 0; __i < l; __i++) { \ + SMC_outw( *(__b2 + __i), r); \ + } \ + }) +#endif + +#if 0 +#define SMC_insw(r,b,l) insw(SMC_BASE_ADDRESS+(r), (b), (l)) +#else +#define SMC_insw(r,b,l) ({ int __i ; \ + word *__b2; \ + __b2 = (word *) b; \ + for (__i = 0; __i < l; __i++) { \ + *(__b2 + __i) = SMC_inw(r); \ + SMC_inw(0); \ + }; \ + }) +#endif + +#endif + +/*--------------------------------------------------------------- + . + . A description of the SMSC registers is probably in order here, + . although for details, the SMC datasheet is invaluable. + . + . Basically, the chip has 4 banks of registers ( 0 to 3 ), which + . are accessed by writing a number into the BANK_SELECT register + . ( I also use a SMC_SELECT_BANK macro for this ). + . + . The banks are configured so that for most purposes, bank 2 is all + . that is needed for simple run time tasks. + -----------------------------------------------------------------------*/ + +/* + . Bank Select Register: + . + . yyyy yyyy 0000 00xx + . xx = bank number + . yyyy yyyy = 0x33, for identification purposes. +*/ +#define BANK_SELECT 14 + +/* Transmit Control Register */ +/* BANK 0 */ +#define TCR_REG 0x0000 /* transmit control register */ +#define TCR_ENABLE 0x0001 /* When 1 we can transmit */ +#define TCR_LOOP 0x0002 /* Controls output pin LBK */ +#define TCR_FORCOL 0x0004 /* When 1 will force a collision */ +#define TCR_PAD_EN 0x0080 /* When 1 will pad tx frames < 64 bytes w/0 */ +#define TCR_NOCRC 0x0100 /* When 1 will not append CRC to tx frames */ +#define TCR_MON_CSN 0x0400 /* When 1 tx monitors carrier */ +#define TCR_FDUPLX 0x0800 /* When 1 enables full duplex operation */ +#define TCR_STP_SQET 0x1000 /* When 1 stops tx if Signal Quality Error */ +#define TCR_EPH_LOOP 0x2000 /* When 1 enables EPH block loopback */ +#define TCR_SWFDUP 0x8000 /* When 1 enables Switched Full Duplex mode */ + +#define TCR_CLEAR 0 /* do NOTHING */ +/* the default settings for the TCR register : */ +/* QUESTION: do I want to enable padding of short packets ? */ +#define TCR_DEFAULT TCR_ENABLE + + +/* EPH Status Register */ +/* BANK 0 */ +#define EPH_STATUS_REG 0x0002 +#define ES_TX_SUC 0x0001 /* Last TX was successful */ +#define ES_SNGL_COL 0x0002 /* Single collision detected for last tx */ +#define ES_MUL_COL 0x0004 /* Multiple collisions detected for last tx */ +#define ES_LTX_MULT 0x0008 /* Last tx was a multicast */ +#define ES_16COL 0x0010 /* 16 Collisions Reached */ +#define ES_SQET 0x0020 /* Signal Quality Error Test */ +#define ES_LTXBRD 0x0040 /* Last tx was a broadcast */ +#define ES_TXDEFR 0x0080 /* Transmit Deferred */ +#define ES_LATCOL 0x0200 /* Late collision detected on last tx */ +#define ES_LOSTCARR 0x0400 /* Lost Carrier Sense */ +#define ES_EXC_DEF 0x0800 /* Excessive Deferral */ +#define ES_CTR_ROL 0x1000 /* Counter Roll Over indication */ +#define ES_LINK_OK 0x4000 /* Driven by inverted value of nLNK pin */ +#define ES_TXUNRN 0x8000 /* Tx Underrun */ + + +/* Receive Control Register */ +/* BANK 0 */ +#define RCR_REG 0x0004 +#define RCR_RX_ABORT 0x0001 /* Set if a rx frame was aborted */ +#define RCR_PRMS 0x0002 /* Enable promiscuous mode */ +#define RCR_ALMUL 0x0004 /* When set accepts all multicast frames */ +#define RCR_RXEN 0x0100 /* IFF this is set, we can receive packets */ +#define RCR_STRIP_CRC 0x0200 /* When set strips CRC from rx packets */ +#define RCR_ABORT_ENB 0x0200 /* When set will abort rx on collision */ +#define RCR_FILT_CAR 0x0400 /* When set filters leading 12 bit s of carrier */ +#define RCR_SOFTRST 0x8000 /* resets the chip */ + +/* the normal settings for the RCR register : */ +#define RCR_DEFAULT (RCR_STRIP_CRC | RCR_RXEN) +#define RCR_CLEAR 0x0 /* set it to a base state */ + +/* Counter Register */ +/* BANK 0 */ +#define COUNTER_REG 0x0006 + +/* Memory Information Register */ +/* BANK 0 */ +#define MIR_REG 0x0008 + +/* Receive/Phy Control Register */ +/* BANK 0 */ +#define RPC_REG 0x000A +#define RPC_SPEED 0x2000 /* When 1 PHY is in 100Mbps mode. */ +#define RPC_DPLX 0x1000 /* When 1 PHY is in Full-Duplex Mode */ +#define RPC_ANEG 0x0800 /* When 1 PHY is in Auto-Negotiate Mode */ +#define RPC_LSXA_SHFT 5 /* Bits to shift LS2A,LS1A,LS0A to lsb */ +#define RPC_LSXB_SHFT 2 /* Bits to get LS2B,LS1B,LS0B to lsb */ +#define RPC_LED_100_10 (0x00) /* LED = 100Mbps OR's with 10Mbps link detect */ +#define RPC_LED_RES (0x01) /* LED = Reserved */ +#define RPC_LED_10 (0x02) /* LED = 10Mbps link detect */ +#define RPC_LED_FD (0x03) /* LED = Full Duplex Mode */ +#define RPC_LED_TX_RX (0x04) /* LED = TX or RX packet occurred */ +#define RPC_LED_100 (0x05) /* LED = 100Mbps link dectect */ +#define RPC_LED_TX (0x06) /* LED = TX packet occurred */ +#define RPC_LED_RX (0x07) /* LED = RX packet occurred */ +#define RPC_DEFAULT (RPC_ANEG | (RPC_LED_100 << RPC_LSXA_SHFT) | (RPC_LED_FD << RPC_LSXB_SHFT) | RPC_SPEED | RPC_DPLX) + +/* Bank 0 0x000C is reserved */ + +/* Bank Select Register */ +/* All Banks */ +#define BSR_REG 0x000E + + +/* Configuration Reg */ +/* BANK 1 */ +#define CONFIG_REG 0x0000 +#define CONFIG_EXT_PHY 0x0200 /* 1=external MII, 0=internal Phy */ +#define CONFIG_GPCNTRL 0x0400 /* Inverse value drives pin nCNTRL */ +#define CONFIG_NO_WAIT 0x1000 /* When 1 no extra wait states on ISA bus */ +#define CONFIG_EPH_POWER_EN 0x8000 /* When 0 EPH is placed into low power mode. */ + +/* Default is powered-up, Internal Phy, Wait States, and pin nCNTRL=low */ +#define CONFIG_DEFAULT (CONFIG_EPH_POWER_EN) + + +/* Base Address Register */ +/* BANK 1 */ +#define BASE_REG 0x0002 + + +/* Individual Address Registers */ +/* BANK 1 */ +#define ADDR0_REG 0x0004 +#define ADDR1_REG 0x0006 +#define ADDR2_REG 0x0008 + + +/* General Purpose Register */ +/* BANK 1 */ +#define GP_REG 0x000A + + +/* Control Register */ +/* BANK 1 */ +#define CTL_REG 0x000C +#define CTL_RCV_BAD 0x4000 /* When 1 bad CRC packets are received */ +#define CTL_AUTO_RELEASE 0x0800 /* When 1 tx pages are released automatically */ +#define CTL_LE_ENABLE 0x0080 /* When 1 enables Link Error interrupt */ +#define CTL_CR_ENABLE 0x0040 /* When 1 enables Counter Rollover interrupt */ +#define CTL_TE_ENABLE 0x0020 /* When 1 enables Transmit Error interrupt */ +#define CTL_EEPROM_SELECT 0x0004 /* Controls EEPROM reload & store */ +#define CTL_RELOAD 0x0002 /* When set reads EEPROM into registers */ +#define CTL_STORE 0x0001 /* When set stores registers into EEPROM */ +#define CTL_DEFAULT (0x1210) + +/* MMU Command Register */ +/* BANK 2 */ +#define MMU_CMD_REG 0x0000 +#define MC_BUSY 1 /* When 1 the last release has not completed */ +#define MC_NOP (0<<5) /* No Op */ +#define MC_ALLOC (1<<5) /* OR with number of 256 byte packets */ +#define MC_RESET (2<<5) /* Reset MMU to initial state */ +#define MC_REMOVE (3<<5) /* Remove the current rx packet */ +#define MC_RELEASE (4<<5) /* Remove and release the current rx packet */ +#define MC_FREEPKT (5<<5) /* Release packet in PNR register */ +#define MC_ENQUEUE (6<<5) /* Enqueue the packet for transmit */ +#define MC_RSTTXFIFO (7<<5) /* Reset the TX FIFOs */ + + +/* Packet Number Register */ +/* BANK 2 */ +#define PN_REG 0x0002 + + +/* Allocation Result Register */ +/* BANK 2 */ +#define AR_REG 0x0003 +#define AR_FAILED 0x80 /* Alocation Failed */ + + +/* RX FIFO Ports Register */ +/* BANK 2 */ +#define RXFIFO_REG 0x0004 /* Must be read as a word */ +#define RXFIFO_REMPTY 0x8000 /* RX FIFO Empty */ + + +/* TX FIFO Ports Register */ +/* BANK 2 */ +#define TXFIFO_REG RXFIFO_REG /* Must be read as a word */ +#define TXFIFO_TEMPTY 0x80 /* TX FIFO Empty */ + + +/* Pointer Register */ +/* BANK 2 */ +#define PTR_REG 0x0006 +#define PTR_RCV 0x8000 /* 1=Receive area, 0=Transmit area */ +#define PTR_AUTOINC 0x4000 /* Auto increment the pointer on each access */ +#define PTR_READ 0x2000 /* When 1 the operation is a read */ + + +/* Data Register */ +/* BANK 2 */ +#define SMC91111_DATA_REG 0x0008 + + +/* Interrupt Status/Acknowledge Register */ +/* BANK 2 */ +#define SMC91111_INT_REG 0x000C + + +/* Interrupt Mask Register */ +/* BANK 2 */ +#define IM_REG 0x000D +#define IM_MDINT 0x80 /* PHY MI Register 18 Interrupt */ +#define IM_ERCV_INT 0x40 /* Early Receive Interrupt */ +#define IM_EPH_INT 0x20 /* Set by Etheret Protocol Handler section */ +#define IM_RX_OVRN_INT 0x10 /* Set by Receiver Overruns */ +#define IM_ALLOC_INT 0x08 /* Set when allocation request is completed */ +#define IM_TX_EMPTY_INT 0x04 /* Set if the TX FIFO goes empty */ +#define IM_TX_INT 0x02 /* Transmit Interrrupt */ +#define IM_RCV_INT 0x01 /* Receive Interrupt */ + + +/* Multicast Table Registers */ +/* BANK 3 */ +#define MCAST_REG1 0x0000 +#define MCAST_REG2 0x0002 +#define MCAST_REG3 0x0004 +#define MCAST_REG4 0x0006 + + +/* Management Interface Register (MII) */ +/* BANK 3 */ +#define MII_REG 0x0008 +#define MII_MSK_CRS100 0x4000 /* Disables CRS100 detection during tx half dup */ +#define MII_MDOE 0x0008 /* MII Output Enable */ +#define MII_MCLK 0x0004 /* MII Clock, pin MDCLK */ +#define MII_MDI 0x0002 /* MII Input, pin MDI */ +#define MII_MDO 0x0001 /* MII Output, pin MDO */ + + +/* Revision Register */ +/* BANK 3 */ +#define REV_REG 0x000A /* ( hi: chip id low: rev # ) */ + + +/* Early RCV Register */ +/* BANK 3 */ +/* this is NOT on SMC9192 */ +#define ERCV_REG 0x000C +#define ERCV_RCV_DISCRD 0x0080 /* When 1 discards a packet being received */ +#define ERCV_THRESHOLD 0x001F /* ERCV Threshold Mask */ + +/* External Register */ +/* BANK 7 */ +#define EXT_REG 0x0000 + + +#define CHIP_9192 3 +#define CHIP_9194 4 +#define CHIP_9195 5 +#define CHIP_9196 6 +#define CHIP_91100 7 +#define CHIP_91100FD 8 +#define CHIP_91111FD 9 + +#if 0 +static const char * chip_ids[ 15 ] = { + NULL, NULL, NULL, + /* 3 */ "SMC91C90/91C92", + /* 4 */ "SMC91C94", + /* 5 */ "SMC91C95", + /* 6 */ "SMC91C96", + /* 7 */ "SMC91C100", + /* 8 */ "SMC91C100FD", + /* 9 */ "SMC91C111", + NULL, NULL, + NULL, NULL, NULL}; +#endif + +/* + . Transmit status bits +*/ +#define TS_SUCCESS 0x0001 +#define TS_LOSTCAR 0x0400 +#define TS_LATCOL 0x0200 +#define TS_16COL 0x0010 + +/* + . Receive status bits +*/ +#define RS_ALGNERR 0x8000 +#define RS_BRODCAST 0x4000 +#define RS_BADCRC 0x2000 +#define RS_ODDFRAME 0x1000 /* bug: the LAN91C111 never sets this on receive */ +#define RS_TOOLONG 0x0800 +#define RS_TOOSHORT 0x0400 +#define RS_MULTICAST 0x0001 +#define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT) + + +/* PHY Types */ +enum { + PHY_LAN83C183 = 1, /* LAN91C111 Internal PHY */ + PHY_LAN83C180 +}; + + +/* PHY Register Addresses (LAN91C111 Internal PHY) */ + +/* PHY Control Register */ +#define PHY_CNTL_REG 0x00 +#define PHY_CNTL_RST 0x8000 /* 1=PHY Reset */ +#define PHY_CNTL_LPBK 0x4000 /* 1=PHY Loopback */ +#define PHY_CNTL_SPEED 0x2000 /* 1=100Mbps, 0=10Mpbs */ +#define PHY_CNTL_ANEG_EN 0x1000 /* 1=Enable Auto negotiation */ +#define PHY_CNTL_PDN 0x0800 /* 1=PHY Power Down mode */ +#define PHY_CNTL_MII_DIS 0x0400 /* 1=MII 4 bit interface disabled */ +#define PHY_CNTL_ANEG_RST 0x0200 /* 1=Reset Auto negotiate */ +#define PHY_CNTL_DPLX 0x0100 /* 1=Full Duplex, 0=Half Duplex */ +#define PHY_CNTL_COLTST 0x0080 /* 1= MII Colision Test */ + +/* PHY Status Register */ +#define PHY_STAT_REG 0x01 +#define PHY_STAT_CAP_T4 0x8000 /* 1=100Base-T4 capable */ +#define PHY_STAT_CAP_TXF 0x4000 /* 1=100Base-X full duplex capable */ +#define PHY_STAT_CAP_TXH 0x2000 /* 1=100Base-X half duplex capable */ +#define PHY_STAT_CAP_TF 0x1000 /* 1=10Mbps full duplex capable */ +#define PHY_STAT_CAP_TH 0x0800 /* 1=10Mbps half duplex capable */ +#define PHY_STAT_CAP_SUPR 0x0040 /* 1=recv mgmt frames with not preamble */ +#define PHY_STAT_ANEG_ACK 0x0020 /* 1=ANEG has completed */ +#define PHY_STAT_REM_FLT 0x0010 /* 1=Remote Fault detected */ +#define PHY_STAT_CAP_ANEG 0x0008 /* 1=Auto negotiate capable */ +#define PHY_STAT_LINK 0x0004 /* 1=valid link */ +#define PHY_STAT_JAB 0x0002 /* 1=10Mbps jabber condition */ +#define PHY_STAT_EXREG 0x0001 /* 1=extended registers implemented */ + +/* PHY Identifier Registers */ +#define PHY_ID1_REG 0x02 /* PHY Identifier 1 */ +#define PHY_ID2_REG 0x03 /* PHY Identifier 2 */ + +/* PHY Auto-Negotiation Advertisement Register */ +#define PHY_AD_REG 0x04 +#define PHY_AD_NP 0x8000 /* 1=PHY requests exchange of Next Page */ +#define PHY_AD_ACK 0x4000 /* 1=got link code word from remote */ +#define PHY_AD_RF 0x2000 /* 1=advertise remote fault */ +#define PHY_AD_T4 0x0200 /* 1=PHY is capable of 100Base-T4 */ +#define PHY_AD_TX_FDX 0x0100 /* 1=PHY is capable of 100Base-TX FDPLX */ +#define PHY_AD_TX_HDX 0x0080 /* 1=PHY is capable of 100Base-TX HDPLX */ +#define PHY_AD_10_FDX 0x0040 /* 1=PHY is capable of 10Base-T FDPLX */ +#define PHY_AD_10_HDX 0x0020 /* 1=PHY is capable of 10Base-T HDPLX */ +#define PHY_AD_CSMA 0x0001 /* 1=PHY is capable of 802.3 CMSA */ + +/* PHY Auto-negotiation Remote End Capability Register */ +#define PHY_RMT_REG 0x05 +/* Uses same bit definitions as PHY_AD_REG */ + +/* PHY Configuration Register 1 */ +#define PHY_CFG1_REG 0x10 +#define PHY_CFG1_LNKDIS 0x8000 /* 1=Rx Link Detect Function disabled */ +#define PHY_CFG1_XMTDIS 0x4000 /* 1=TP Transmitter Disabled */ +#define PHY_CFG1_XMTPDN 0x2000 /* 1=TP Transmitter Powered Down */ +#define PHY_CFG1_BYPSCR 0x0400 /* 1=Bypass scrambler/descrambler */ +#define PHY_CFG1_UNSCDS 0x0200 /* 1=Unscramble Idle Reception Disable */ +#define PHY_CFG1_EQLZR 0x0100 /* 1=Rx Equalizer Disabled */ +#define PHY_CFG1_CABLE 0x0080 /* 1=STP(150ohm), 0=UTP(100ohm) */ +#define PHY_CFG1_RLVL0 0x0040 /* 1=Rx Squelch level reduced by 4.5db */ +#define PHY_CFG1_TLVL_SHIFT 2 /* Transmit Output Level Adjust */ +#define PHY_CFG1_TLVL_MASK 0x003C +#define PHY_CFG1_TRF_MASK 0x0003 /* Transmitter Rise/Fall time */ + + +/* PHY Configuration Register 2 */ +#define PHY_CFG2_REG 0x11 +#define PHY_CFG2_APOLDIS 0x0020 /* 1=Auto Polarity Correction disabled */ +#define PHY_CFG2_JABDIS 0x0010 /* 1=Jabber disabled */ +#define PHY_CFG2_MREG 0x0008 /* 1=Multiple register access (MII mgt) */ +#define PHY_CFG2_INTMDIO 0x0004 /* 1=Interrupt signaled with MDIO pulseo */ + +/* PHY Status Output (and Interrupt status) Register */ +#define PHY_INT_REG 0x12 /* Status Output (Interrupt Status) */ +#define PHY_INT_INT 0x8000 /* 1=bits have changed since last read */ +#define PHY_INT_LNKFAIL 0x4000 /* 1=Link Not detected */ +#define PHY_INT_LOSSSYNC 0x2000 /* 1=Descrambler has lost sync */ +#define PHY_INT_CWRD 0x1000 /* 1=Invalid 4B5B code detected on rx */ +#define PHY_INT_SSD 0x0800 /* 1=No Start Of Stream detected on rx */ +#define PHY_INT_ESD 0x0400 /* 1=No End Of Stream detected on rx */ +#define PHY_INT_RPOL 0x0200 /* 1=Reverse Polarity detected */ +#define PHY_INT_JAB 0x0100 /* 1=Jabber detected */ +#define PHY_INT_SPDDET 0x0080 /* 1=100Base-TX mode, 0=10Base-T mode */ +#define PHY_INT_DPLXDET 0x0040 /* 1=Device in Full Duplex */ + +/* PHY Interrupt/Status Mask Register */ +#define PHY_MASK_REG 0x13 /* Interrupt Mask */ +/* Uses the same bit definitions as PHY_INT_REG */ + + + +/*------------------------------------------------------------------------- + . I define some macros to make it easier to do somewhat common + . or slightly complicated, repeated tasks. + --------------------------------------------------------------------------*/ + +/* select a register bank, 0 to 3 */ + +#define SMC_SELECT_BANK(x) { SMC_outw( x, BANK_SELECT ); } + +/* this enables an interrupt in the interrupt mask register */ +#define SMC_ENABLE_INT(x) {\ + unsigned char mask;\ + SMC_SELECT_BANK(2);\ + mask = SMC_inb( IM_REG );\ + mask |= (x);\ + SMC_outb( mask, IM_REG ); \ +} + +/* this disables an interrupt from the interrupt mask register */ + +#define SMC_DISABLE_INT(x) {\ + unsigned char mask;\ + SMC_SELECT_BANK(2);\ + mask = SMC_inb( IM_REG );\ + mask &= ~(x);\ + SMC_outb( mask, IM_REG ); \ +} + +/*---------------------------------------------------------------------- + . Define the interrupts that I want to receive from the card + . + . I want: + . IM_EPH_INT, for nasty errors + . IM_RCV_INT, for happy received packets + . IM_RX_OVRN_INT, because I have to kick the receiver + . IM_MDINT, for PHY Register 18 Status Changes + --------------------------------------------------------------------------*/ +#define SMC_INTERRUPT_MASK (IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT | \ + IM_MDINT) + +#endif /* _SMC_91111_H_ */ + |