diff options
| -rw-r--r-- | CHANGELOG | 3 | ||||
| -rw-r--r-- | MAKEALL | 2 | ||||
| -rw-r--r-- | README | 12 | ||||
| -rw-r--r-- | doc/README.Purple | 24 | ||||
| -rw-r--r-- | drivers/Makefile | 2 | ||||
| -rw-r--r-- | drivers/lan91c96.c | 858 | ||||
| -rw-r--r-- | drivers/lan91c96.h | 635 | ||||
| -rw-r--r-- | include/configs/lubbock.h | 4 | ||||
| -rw-r--r-- | lib_arm/board.c | 10 | ||||
| -rw-r--r-- | post/sysmon.c | 4 | ||||
| -rw-r--r-- | post/uart.c | 2 |
11 files changed, 1544 insertions, 12 deletions
@@ -2,6 +2,9 @@ Changes since U-Boot 0.3.1: ====================================================================== +* Patch by Mathijs Haarman, 08 May 2003: + Add lan91c96 driver (tested on Lubbock and custom PXA250 board only) + * Fix problem with usage of "true" (undefined in current versions of bfd.h) * Add support for Promess ATC board @@ -67,7 +67,7 @@ LIST_824x=" \ ######################################################################### LIST_8260=" \ - ATC cogent_mpc8260 CPU86 ep8260 \ + atc cogent_mpc8260 CPU86 ep8260 \ gw8260 hymod IPHASE4539 MPC8260ADS \ MPC8266ADS PM826 ppmc8260 RPXsuper \ rsdproto sacsng sbc8260 SCM \ @@ -695,6 +695,18 @@ The following options need to be configured: CONFIG_NS8382X Support for National dp8382[01] gigabit chips. +- NETWORK Support (other): + + CONFIG_DRIVER_LAN91C96 + Support for SMSC's LAN91C96 chips. + + CONFIG_LAN91C96_BASE + Define this to hold the physical address + of the LAN91C96's I/O space + + CONFIG_LAN91C96_USE_32_BIT + Define this to enable 32 bit addressing + - USB Support: At the moment only the UHCI host controller is supported (PIP405, MIP405); define diff --git a/doc/README.Purple b/doc/README.Purple index c05e0ff36..dc3e00d10 100644 --- a/doc/README.Purple +++ b/doc/README.Purple @@ -7,22 +7,32 @@ Installation Instructions: ------ |x | | x| - |x | - | X| + |x | + | X| ------ Put the s3 switch into the following position: - 1 0 + 1 0 + ------ + | x | + | x | + | x| + | x| + ------ + + Put the s4 switch into the following position: + + 1 0 ------ |x | |x | - |x | + |x | |x | |x | | x| | x| - |x | + |x | ------ 2. Connect to the serial console and to the BDI. Power on. On the @@ -54,8 +64,8 @@ Installation Instructions: ------ | x| | x| - |x | - | X| + |x | + | X| ------ Power on. U-Boot should come up. diff --git a/drivers/Makefile b/drivers/Makefile index b3857a754..2101a278a 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -30,7 +30,7 @@ LIB = libdrivers.a OBJS = 3c589.o 5701rls.o at91rm9200_ether.o \ bcm570x.o bcm570x_autoneg.o \ cfb_console.o cs8900.o ct69000.o dc2114x.o \ - eepro100.o i8042.o inca-ip_sw.o \ + eepro100.o i8042.o inca-ip_sw.o lan91c96.o\ natsemi.o ns16550.o ns8382x.o ns87308.o \ pci.o pci_auto.o pci_indirect.o \ pcnet.o plb2800_eth.o \ diff --git a/drivers/lan91c96.c b/drivers/lan91c96.c new file mode 100644 index 000000000..76b0c53ae --- /dev/null +++ b/drivers/lan91c96.c @@ -0,0 +1,858 @@ +/*------------------------------------------------------------------------ + * lan91c96.c + * This is a driver for SMSC's LAN91C96 single-chip Ethernet device, based + * on the SMC91111 driver from U-boot. + * + * (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 LAN91C96 + * 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: + * 6144 byte packet memory. ( for the 91C96 ) + * EEPROM for configuration + * AUI/TP selection ( mine has 10Base2/10BaseT select ) + * + * 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 LAN91C96 databook (www.smsc.com) + * o smc91111.c (u-boot driver) + * o smc9194.c (linux kernel driver) + * o lan91c96.c (Intel Diagnostic Manager driver) + * + * History: + * 04/30/03 Mathijs Haarman Modified smc91111.c (u-boot version) + * for lan91c96 + *--------------------------------------------------------------------------- + */ + +#include <common.h> +#include <command.h> +#include "lan91c96.h" +#include <net.h> + +#ifdef CONFIG_DRIVER_LAN91C96 + +#if (CONFIG_COMMANDS & CFG_CMD_NET) + +/*------------------------------------------------------------------------ + * + * Configuration options, for the experienced user to change. + * + -------------------------------------------------------------------------*/ + +/* Use power-down feature of the chip */ +#define POWER_DOWN 0 + +/* + * 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 + +#define SMC_DEBUG 0 + +#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 "LAN91C96" + +#define SMC_BASE_ADDRESS CONFIG_LAN91C96_BASE + +#define SMC_DEV_NAME "LAN91C96" +#define SMC_ALLOC_MAX_TRY 5 +#define SMC_TX_TIMEOUT 30 + +#define ETH_ZLEN 60 + +#ifdef CONFIG_LAN91C96_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); +static int smc_hw_init (void); + +/* + * 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); + +/* + * 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[] = { 0xc0, 0x00, 0x00, 0x1b, 0x62, 0x9c }; + +/* + * 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 (LAN91C96_BANK_SELECT) & 0xF; + + SMC_SELECT_BANK (0); + mem_info = SMC_inw (LAN91C96_MIR); + 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); + + +static int poll4int (byte mask, int timeout) +{ + int tmo = get_timer (0) + timeout * CFG_HZ; + int is_timeout = 0; + word old_bank = SMC_inw (LAN91C96_BANK_SELECT); + + PRINTK2 ("Polling...\n"); + SMC_SELECT_BANK (2); + while ((SMC_inw (LAN91C96_INT_STATS) & 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 (LAN91C96_RCR_SOFT_RST, LAN91C96_RCR); + + udelay (10); + + /* Disable transmit and receive functionality */ + SMC_outw (0, LAN91C96_RCR); + SMC_outw (0, LAN91C96_TCR); + + /* set the control register */ + SMC_SELECT_BANK (1); + SMC_outw (SMC_inw (LAN91C96_CONTROL) | LAN91C96_CTR_BIT_8, + LAN91C96_CONTROL); + + /* Disable all interrupts */ + SMC_outb (0, LAN91C96_INT_MASK); +} + +/* + * Function: smc_enable + * Purpose: let the chip talk to the outside work + * Method: + * 1. Initialize the Memory Configuration Register + * 2. Enable the transmitter + * 3. Enable the receiver +*/ +static void smc_enable () +{ + PRINTK2 ("%s:smc_enable\n", SMC_DEV_NAME); + SMC_SELECT_BANK (0); + + /* Initialize the Memory Configuration Register. See page + 49 of the LAN91C96 data sheet for details. */ + SMC_outw (LAN91C96_MCR_TRANSMIT_PAGES, LAN91C96_MCR); + + /* Initialize the Transmit Control Register */ + SMC_outw (LAN91C96_TCR_TXENA, LAN91C96_TCR); + /* Initialize the Receive Control Register + * FIXME: + * The promiscuous bit set because I could not receive ARP reply + * packets from the server when I send a ARP request. It only works + * when I set the promiscuous bit + */ + SMC_outw (LAN91C96_RCR_RXEN | LAN91C96_RCR_PRMS, LAN91C96_RCR); +} + +/* + * 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, LAN91C96_INT_MASK); + + /* and tell the card to stay away from that nasty outside world */ + SMC_SELECT_BANK (0); + SMC_outb (0, LAN91C96_RCR); + SMC_outb (0, LAN91C96_TCR); +} + + +/* + * 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 (LAN91C96_MMUCR_ALLOC_TX | numPages, LAN91C96_MMU); + + again: + try++; + time_out = MEMORY_WAIT_TIME; + do { + status = SMC_inb (LAN91C96_INT_STATS); + if (status & LAN91C96_IST_ALLOC_INT) { + + SMC_outb (LAN91C96_IST_ALLOC_INT, LAN91C96_INT_STATS); + 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 (LAN91C96_ARR); + if (packet_no & LAN91C96_ARR_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, LAN91C96_PNR); + + /* point to the beginning of the packet */ + SMC_outw (LAN91C96_PTR_AUTO_INCR, LAN91C96_POINTER); + + 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, LAN91C96_DATA_HIGH); +#else + SMC_outw (0, LAN91C96_DATA_HIGH); + /* send the packet length ( +6 for status words, length, and ctl */ + SMC_outw ((length + 6), LAN91C96_DATA_HIGH); +#endif /* USE_32_BIT */ + + /* 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 (LAN91C96_DATA_HIGH, buf, length >> 2); + if (length & 0x2) + SMC_outw (*((word *) (buf + (length & 0xFFFFFFFC))), + LAN91C96_DATA_HIGH); +#else + SMC_outsw (LAN91C96_DATA_HIGH, buf, (length) >> 1); +#endif /* USE_32_BIT */ + + /* Send the last byte, if there is one. */ + if ((length & 1) == 0) { + SMC_outw (0, LAN91C96_DATA_HIGH); + } else { + SMC_outw (buf[length - 1] | 0x2000, LAN91C96_DATA_HIGH); + } + + /* and let the chipset deal with it */ + SMC_outw (LAN91C96_MMUCR_ENQUEUE, LAN91C96_MMU); + + /* poll for TX INT */ + if (poll4int (LAN91C96_MSK_TX_INT, SMC_TX_TIMEOUT)) { + /* sending failed */ + PRINTK2 ("%s: TX timeout, sending failed...\n", SMC_DEV_NAME); + + /* release packet */ + SMC_outw (LAN91C96_MMUCR_RELEASE_TX, LAN91C96_MMU); + + /* wait for MMU getting ready (low) */ + while (SMC_inw (LAN91C96_MMU) & LAN91C96_MMUCR_NO_BUSY) { + udelay (10); + } + + PRINTK2 ("MMU ready\n"); + + + return 0; + } else { + /* ack. int */ + SMC_outw (LAN91C96_IST_TX_INT, LAN91C96_INT_STATS); + + PRINTK2 ("%s: Sent packet of length %d \n", SMC_DEV_NAME, length); + + /* release packet */ + SMC_outw (LAN91C96_MMUCR_RELEASE_TX, LAN91C96_MMU); + + /* wait for MMU getting ready (low) */ + while (SMC_inw (LAN91C96_MMU) & LAN91C96_MMUCR_NO_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 (); + + SMC_SELECT_BANK (1); + + for (i = 0; i < 6; i += 2) { + word address; + + address = smc_mac_addr[i + 1] << 8; + address |= smc_mac_addr[i]; + SMC_outw (address, LAN91C96_IA0 + i); + } + return 0; +} + +/*------------------------------------------------------------- + * + * 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 (LAN91C96_FIFO); + + if (packet_number & LAN91C96_FIFO_RXEMPTY) { + return 0; + } + + PRINTK3 ("%s:smc_rcv\n", SMC_DEV_NAME); + /* start reading from the start of the packet */ + SMC_outw (LAN91C96_PTR_READ | LAN91C96_PTR_RCV | + LAN91C96_PTR_AUTO_INCR, LAN91C96_POINTER); + + /* First two words are status and packet_length */ +#ifdef USE_32_BIT + stat_len = SMC_inl (LAN91C96_DATA_HIGH); + status = stat_len & 0xffff; + packet_length = stat_len >> 16; +#else + status = SMC_inw (LAN91C96_DATA_HIGH); + packet_length = SMC_inw (LAN91C96_DATA_HIGH); +#endif + + packet_length &= 0x07ff; /* mask off top bits */ + + PRINTK2 ("RCV: STATUS %4x LENGTH %4x\n", status, packet_length); + + if (!(status & FRAME_FILTER)) { + /* 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 (LAN91C96_DATA_HIGH, NetRxPackets[0], packet_length >> 2); + /* read the left over bytes */ + if (packet_length & 3) { + int i; + + byte *tail = (byte *) (NetRxPackets[0] + (packet_length & ~3)); + dword leftover = SMC_inl (LAN91C96_DATA_HIGH); + + 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 (LAN91C96_DATA_HIGH, 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 (LAN91C96_MMU) & LAN91C96_MMUCR_NO_BUSY) + udelay (1); /* Wait until not busy */ + + /* error or good, tell the card to get rid of this packet */ + SMC_outw (LAN91C96_MMUCR_RELEASE_RX, LAN91C96_MMU); + + while (SMC_inw (LAN91C96_MMU) & LAN91C96_MMUCR_NO_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 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); + + 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 /* 0 */ +} +#endif /* SMC_DEBUG > 2 */ + +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); +} + +int eth_hw_init () +{ + return smc_hw_init (); +} + +/*------------------------------------------------------------------------- + * smc_hw_init() + * + * Function: + * Reset and enable the device, check if the I/O space location + * is correct + * + * Input parameters: + * None + * + * Output: + * 0 --> success + * 1 --> error + *-------------------------------------------------------------------------- + */ +static int smc_hw_init () +{ + unsigned short status_test; + + /* The attribute register of the LAN91C96 is located at address + 0x0e000000 on the lubbock platform */ + volatile unsigned *attaddr = (unsigned *) (0x0e000000); + + /* first reset, then enable the device. Sequence is critical */ + attaddr[LAN91C96_ECOR] |= LAN91C96_ECOR_SRESET; + udelay (100); + attaddr[LAN91C96_ECOR] &= ~LAN91C96_ECOR_SRESET; + attaddr[LAN91C96_ECOR] |= LAN91C96_ECOR_ENABLE; + + /* force 16-bit mode */ + attaddr[LAN91C96_ECSR] &= ~LAN91C96_ECSR_IOIS8; + udelay (100); + + /* check if the I/O address is correct, the upper byte of the + bank select register should read 0x33 */ + + status_test = SMC_inw (LAN91C96_BANK_SELECT); + if ((status_test & 0xFF00) != 0x3300) { + printf ("Failed to initialize ethernetchip\n"); + return 1; + } + return 0; +} + +#endif /* COMMANDS & CFG_NET */ + +#endif /* CONFIG_DRIVER_LAN91C96 */ diff --git a/drivers/lan91c96.h b/drivers/lan91c96.h new file mode 100644 index 000000000..3ac58bce2 --- /dev/null +++ b/drivers/lan91c96.h @@ -0,0 +1,635 @@ +/*------------------------------------------------------------------------ + * lan91c96.h + * + * (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 LAN91C96 single chip ethernet controller. It is a modified + * version of the smc9111.h file. + * + * Information contained in this file was obtained from the LAN91C96 + * 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 + * 04/30/03 Mathijs Haarman Modified smc91111.h (u-boot version) + * for lan91c96 + *------------------------------------------------------------------------- + */ +#ifndef _LAN91C96_H_ +#define _LAN91C96_H_ + +#include <asm/types.h> +#include <asm/io.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); +int eth_hw_init(void); + + +/* 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 * 4 )))) +#define SMC_inw(r) (*((volatile word *)(SMC_BASE_ADDRESS+( r * 4 )))) +#define SMC_inb(p) ({ \ + unsigned int __p = (unsigned int)(SMC_BASE_ADDRESS + (p * 4)); \ + unsigned int __v = *(volatile unsigned short *)((__p) & ~1); \ + if (__p & 1) __v >>= 8; \ + else __v &= 0xff; \ + __v; }) + +#define SMC_outl(d,r) (*((volatile dword *)(SMC_BASE_ADDRESS+(r * 4))) = d) +#define SMC_outw(d,r) (*((volatile word *)(SMC_BASE_ADDRESS+(r * 4))) = 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 + +/* + **************************************************************************** + * Bank Select Field + **************************************************************************** + */ +#define LAN91C96_BANK_SELECT 14 // Bank Select Register +#define LAN91C96_BANKSELECT (0x3UC << 0) +#define BANK0 0x00 +#define BANK1 0x01 +#define BANK2 0x02 +#define BANK3 0x03 +#define BANK4 0x04 + +/* + **************************************************************************** + * EEPROM Addresses. + **************************************************************************** + */ +#define EEPROM_MAC_OFFSET_1 0x6020 +#define EEPROM_MAC_OFFSET_2 0x6021 +#define EEPROM_MAC_OFFSET_3 0x6022 + +/* + **************************************************************************** + * Bank 0 Register Map in I/O Space + **************************************************************************** + */ +#define LAN91C96_TCR 0 // Transmit Control Register +#define LAN91C96_EPH_STATUS 2 // EPH Status Register +#define LAN91C96_RCR 4 // Receive Control Register +#define LAN91C96_COUNTER 6 // Counter Register +#define LAN91C96_MIR 8 // Memory Information Register +#define LAN91C96_MCR 10 // Memory Configuration Register + +/* + **************************************************************************** + * Transmit Control Register - Bank 0 - Offset 0 + **************************************************************************** + */ +#define LAN91C96_TCR_TXENA (0x1U << 0) +#define LAN91C96_TCR_LOOP (0x1U << 1) +#define LAN91C96_TCR_FORCOL (0x1U << 2) +#define LAN91C96_TCR_TXP_EN (0x1U << 3) +#define LAN91C96_TCR_PAD_EN (0x1U << 7) +#define LAN91C96_TCR_NOCRC (0x1U << 8) +#define LAN91C96_TCR_MON_CSN (0x1U << 10) +#define LAN91C96_TCR_FDUPLX (0x1U << 11) +#define LAN91C96_TCR_STP_SQET (0x1U << 12) +#define LAN91C96_TCR_EPH_LOOP (0x1U << 13) +#define LAN91C96_TCR_ETEN_TYPE (0x1U << 14) +#define LAN91C96_TCR_FDSE (0x1U << 15) + +/* + **************************************************************************** + * EPH Status Register - Bank 0 - Offset 2 + **************************************************************************** + */ +#define LAN91C96_EPHSR_TX_SUC (0x1U << 0) +#define LAN91C96_EPHSR_SNGL_COL (0x1U << 1) +#define LAN91C96_EPHSR_MUL_COL (0x1U << 2) +#define LAN91C96_EPHSR_LTX_MULT (0x1U << 3) +#define LAN91C96_EPHSR_16COL (0x1U << 4) +#define LAN91C96_EPHSR_SQET (0x1U << 5) +#define LAN91C96_EPHSR_LTX_BRD (0x1U << 6) +#define LAN91C96_EPHSR_TX_DEFR (0x1U << 7) +#define LAN91C96_EPHSR_WAKEUP (0x1U << 8) +#define LAN91C96_EPHSR_LATCOL (0x1U << 9) +#define LAN91C96_EPHSR_LOST_CARR (0x1U << 10) +#define LAN91C96_EPHSR_EXC_DEF (0x1U << 11) +#define LAN91C96_EPHSR_CTR_ROL (0x1U << 12) + +#define LAN91C96_EPHSR_LINK_OK (0x1U << 14) +#define LAN91C96_EPHSR_TX_UNRN (0x1U << 15) + +#define LAN91C96_EPHSR_ERRORS (LAN91C96_EPHSR_SNGL_COL | \ + LAN91C96_EPHSR_MUL_COL | \ + LAN91C96_EPHSR_16COL | \ + LAN91C96_EPHSR_SQET | \ + LAN91C96_EPHSR_TX_DEFR | \ + LAN91C96_EPHSR_LATCOL | \ + LAN91C96_EPHSR_LOST_CARR | \ + LAN91C96_EPHSR_EXC_DEF | \ + LAN91C96_EPHSR_LINK_OK | \ + LAN91C96_EPHSR_TX_UNRN) + +/* + **************************************************************************** + * Receive Control Register - Bank 0 - Offset 4 + **************************************************************************** + */ +#define LAN91C96_RCR_RX_ABORT (0x1U << 0) +#define LAN91C96_RCR_PRMS (0x1U << 1) +#define LAN91C96_RCR_ALMUL (0x1U << 2) +#define LAN91C96_RCR_RXEN (0x1U << 8) +#define LAN91C96_RCR_STRIP_CRC (0x1U << 9) +#define LAN91C96_RCR_FILT_CAR (0x1U << 14) +#define LAN91C96_RCR_SOFT_RST (0x1U << 15) + +/* + **************************************************************************** + * Counter Register - Bank 0 - Offset 6 + **************************************************************************** + */ +#define LAN91C96_ECR_SNGL_COL (0xFU << 0) +#define LAN91C96_ECR_MULT_COL (0xFU << 5) +#define LAN91C96_ECR_DEF_TX (0xFU << 8) +#define LAN91C96_ECR_EXC_DEF_TX (0xFU << 12) + +/* + **************************************************************************** + * Memory Information Register - Bank 0 - OFfset 8 + **************************************************************************** + */ +#define LAN91C96_MIR_SIZE (0x18 << 0) // 6144 bytes + +/* + **************************************************************************** + * Memory Configuration Register - Bank 0 - Offset 10 + **************************************************************************** + */ +#define LAN91C96_MCR_MEM_RES (0xFFU << 0) +#define LAN91C96_MCR_MEM_MULT (0x3U << 9) +#define LAN91C96_MCR_HIGH_ID (0x3U << 12) + +#define LAN91C96_MCR_TRANSMIT_PAGES 0x6 + +/* + **************************************************************************** + * Bank 1 Register Map in I/O Space + **************************************************************************** + */ +#define LAN91C96_CONFIG 0 // Configuration Register +#define LAN91C96_BASE 2 // Base Address Register +#define LAN91C96_IA0 4 // Individual Address Register - 0 +#define LAN91C96_IA1 5 // Individual Address Register - 1 +#define LAN91C96_IA2 6 // Individual Address Register - 2 +#define LAN91C96_IA3 7 // Individual Address Register - 3 +#define LAN91C96_IA4 8 // Individual Address Register - 4 +#define LAN91C96_IA5 9 // Individual Address Register - 5 +#define LAN91C96_GEN_PURPOSE 10 // General Address Registers +#define LAN91C96_CONTROL 12 // Control Register + +/* + **************************************************************************** + * Configuration Register - Bank 1 - Offset 0 + **************************************************************************** + */ +#define LAN91C96_CR_INT_SEL0 (0x1U << 1) +#define LAN91C96_CR_INT_SEL1 (0x1U << 2) +#define LAN91C96_CR_RES (0x3U << 3) +#define LAN91C96_CR_DIS_LINK (0x1U << 6) +#define LAN91C96_CR_16BIT (0x1U << 7) +#define LAN91C96_CR_AUI_SELECT (0x1U << 8) +#define LAN91C96_CR_SET_SQLCH (0x1U << 9) +#define LAN91C96_CR_FULL_STEP (0x1U << 10) +#define LAN91C96_CR_NO_WAIT (0x1U << 12) + +/* + **************************************************************************** + * Base Address Register - Bank 1 - Offset 2 + **************************************************************************** + */ +#define LAN91C96_BAR_RA_BITS (0x27U << 0) +#define LAN91C96_BAR_ROM_SIZE (0x1U << 6) +#define LAN91C96_BAR_A_BITS (0xFFU << 8) + +/* + **************************************************************************** + * Control Register - Bank 1 - Offset 12 + **************************************************************************** + */ +#define LAN91C96_CTR_STORE (0x1U << 0) +#define LAN91C96_CTR_RELOAD (0x1U << 1) +#define LAN91C96_CTR_EEPROM (0x1U << 2) +#define LAN91C96_CTR_TE_ENABLE (0x1U << 5) +#define LAN91C96_CTR_CR_ENABLE (0x1U << 6) +#define LAN91C96_CTR_LE_ENABLE (0x1U << 7) +#define LAN91C96_CTR_BIT_8 (0x1U << 8) +#define LAN91C96_CTR_AUTO_RELEASE (0x1U << 11) +#define LAN91C96_CTR_WAKEUP_EN (0x1U << 12) +#define LAN91C96_CTR_PWRDN (0x1U << 13) +#define LAN91C96_CTR_RCV_BAD (0x1U << 14) + +/* + **************************************************************************** + * Bank 2 Register Map in I/O Space + **************************************************************************** + */ +#define LAN91C96_MMU 0 // MMU Command Register +#define LAN91C96_AUTO_TX_START 1 // Auto Tx Start Register +#define LAN91C96_PNR 2 // Packet Number Register +#define LAN91C96_ARR 3 // Allocation Result Register +#define LAN91C96_FIFO 4 // FIFO Ports Register +#define LAN91C96_POINTER 6 // Pointer Register +#define LAN91C96_DATA_HIGH 8 // Data High Register +#define LAN91C96_DATA_LOW 10 // Data Low Register +#define LAN91C96_INT_STATS 12 // Interrupt Status Register - RO +#define LAN91C96_INT_ACK 12 // Interrupt Acknowledge Register -WO +#define LAN91C96_INT_MASK 13 // Interrupt Mask Register + +/* + **************************************************************************** + * MMU Command Register - Bank 2 - Offset 0 + **************************************************************************** + */ +#define LAN91C96_MMUCR_NO_BUSY (0x1U << 0) +#define LAN91C96_MMUCR_N1 (0x1U << 1) +#define LAN91C96_MMUCR_N2 (0x1U << 2) +#define LAN91C96_MMUCR_COMMAND (0xFU << 4) +#define LAN91C96_MMUCR_ALLOC_TX (0x2U << 4) // WXYZ = 0010 +#define LAN91C96_MMUCR_RESET_MMU (0x4U << 4) // WXYZ = 0100 +#define LAN91C96_MMUCR_REMOVE_RX (0x6U << 4) // WXYZ = 0110 +#define LAN91C96_MMUCR_REMOVE_TX (0x7U << 4) // WXYZ = 0111 +#define LAN91C96_MMUCR_RELEASE_RX (0x8U << 4) // WXYZ = 1000 +#define LAN91C96_MMUCR_RELEASE_TX (0xAU << 4) // WXYZ = 1010 +#define LAN91C96_MMUCR_ENQUEUE (0xCU << 4) // WXYZ = 1100 +#define LAN91C96_MMUCR_RESET_TX (0xEU << 4) // WXYZ = 1110 + +/* + **************************************************************************** + * Auto Tx Start Register - Bank 2 - Offset 1 + **************************************************************************** + */ +#define LAN91C96_AUTOTX (0xFFU << 0) + +/* + **************************************************************************** + * Packet Number Register - Bank 2 - Offset 2 + **************************************************************************** + */ +#define LAN91C96_PNR_TX (0x1FU << 0) + +/* + **************************************************************************** + * Allocation Result Register - Bank 2 - Offset 3 + **************************************************************************** + */ +#define LAN91C96_ARR_ALLOC_PN (0x7FU << 0) +#define LAN91C96_ARR_FAILED (0x1U << 7) + +/* + **************************************************************************** + * FIFO Ports Register - Bank 2 - Offset 4 + **************************************************************************** + */ +#define LAN91C96_FIFO_TX_DONE_PN (0x1FU << 0) +#define LAN91C96_FIFO_TEMPTY (0x1U << 7) +#define LAN91C96_FIFO_RX_DONE_PN (0x1FU << 8) +#define LAN91C96_FIFO_RXEMPTY (0x1U << 15) + +/* + **************************************************************************** + * Pointer Register - Bank 2 - Offset 6 + **************************************************************************** + */ +#define LAN91C96_PTR_LOW (0xFFU << 0) +#define LAN91C96_PTR_HIGH (0x7U << 8) +#define LAN91C96_PTR_AUTO_TX (0x1U << 11) +#define LAN91C96_PTR_ETEN (0x1U << 12) +#define LAN91C96_PTR_READ (0x1U << 13) +#define LAN91C96_PTR_AUTO_INCR (0x1U << 14) +#define LAN91C96_PTR_RCV (0x1U << 15) + +#define LAN91C96_PTR_RX_FRAME (LAN91C96_PTR_RCV | \ + LAN91C96_PTR_AUTO_INCR | \ + LAN91C96_PTR_READ) + +/* + **************************************************************************** + * Data Register - Bank 2 - Offset 8 + **************************************************************************** + */ +#define LAN91C96_CONTROL_CRC (0x1U << 4) // CRC bit +#define LAN91C96_CONTROL_ODD (0x1U << 5) // ODD bit + +/* + **************************************************************************** + * Interrupt Status Register - Bank 2 - Offset 12 + **************************************************************************** + */ +#define LAN91C96_IST_RCV_INT (0x1U << 0) +#define LAN91C96_IST_TX_INT (0x1U << 1) +#define LAN91C96_IST_TX_EMPTY_INT (0x1U << 2) +#define LAN91C96_IST_ALLOC_INT (0x1U << 3) +#define LAN91C96_IST_RX_OVRN_INT (0x1U << 4) +#define LAN91C96_IST_EPH_INT (0x1U << 5) +#define LAN91C96_IST_ERCV_INT (0x1U << 6) +#define LAN91C96_IST_RX_IDLE_INT (0x1U << 7) + +/* + **************************************************************************** + * Interrupt Acknowledge Register - Bank 2 - Offset 12 + **************************************************************************** + */ +#define LAN91C96_ACK_TX_INT (0x1U << 1) +#define LAN91C96_ACK_TX_EMPTY_INT (0x1U << 2) +#define LAN91C96_ACK_RX_OVRN_INT (0x1U << 4) +#define LAN91C96_ACK_ERCV_INT (0x1U << 6) + +/* + **************************************************************************** + * Interrupt Mask Register - Bank 2 - Offset 13 + **************************************************************************** + */ +#define LAN91C96_MSK_RCV_INT (0x1U << 0) +#define LAN91C96_MSK_TX_INT (0x1U << 1) +#define LAN91C96_MSK_TX_EMPTY_INT (0x1U << 2) +#define LAN91C96_MSK_ALLOC_INT (0x1U << 3) +#define LAN91C96_MSK_RX_OVRN_INT (0x1U << 4) +#define LAN91C96_MSK_EPH_INT (0x1U << 5) +#define LAN91C96_MSK_ERCV_INT (0x1U << 6) +#define LAN91C96_MSK_TX_IDLE_INT (0x1U << 7) + +/* + **************************************************************************** + * Bank 3 Register Map in I/O Space + ************************************************************************** + */ +#define LAN91C96_MGMT_MDO (0x1U << 0) +#define LAN91C96_MGMT_MDI (0x1U << 1) +#define LAN91C96_MGMT_MCLK (0x1U << 2) +#define LAN91C96_MGMT_MDOE (0x1U << 3) +#define LAN91C96_MGMT_LOW_ID (0x3U << 4) +#define LAN91C96_MGMT_IOS0 (0x1U << 8) +#define LAN91C96_MGMT_IOS1 (0x1U << 9) +#define LAN91C96_MGMT_IOS2 (0x1U << 10) +#define LAN91C96_MGMT_nXNDEC (0x1U << 11) +#define LAN91C96_MGMT_HIGH_ID (0x3U << 12) + +/* + **************************************************************************** + * Revision Register - Bank 3 - Offset 10 + **************************************************************************** + */ +#define LAN91C96_REV_REVID (0xFU << 0) +#define LAN91C96_REV_CHIPID (0xFU << 4) + +/* + **************************************************************************** + * Early RCV Register - Bank 3 - Offset 12 + **************************************************************************** + */ +#define LAN91C96_ERCV_THRESHOLD (0x1FU << 0) +#define LAN91C96_ERCV_RCV_DISCRD (0x1U << 7) + +/* + **************************************************************************** + * PCMCIA Configuration Registers + **************************************************************************** + */ +#define LAN91C96_ECOR 0x8000 // Ethernet Configuration Register +#define LAN91C96_ECSR 0x8002 // Ethernet Configuration and Status + +/* + **************************************************************************** + * PCMCIA Ethernet Configuration Option Register (ECOR) + **************************************************************************** + */ +#define LAN91C96_ECOR_ENABLE (0x1U << 0) +#define LAN91C96_ECOR_WR_ATTRIB (0x1U << 2) +#define LAN91C96_ECOR_LEVEL_REQ (0x1U << 6) +#define LAN91C96_ECOR_SRESET (0x1U << 7) + +/* + **************************************************************************** + * PCMCIA Ethernet Configuration and Status Register (ECSR) + **************************************************************************** + */ +#define LAN91C96_ECSR_INTR (0x1U << 1) +#define LAN91C96_ECSR_PWRDWN (0x1U << 2) +#define LAN91C96_ECSR_IOIS8 (0x1U << 5) + +/* + **************************************************************************** + * Receive Frame Status Word - See page 38 of the LAN91C96 specification. + **************************************************************************** + */ +#define LAN91C96_TOO_SHORT (0x1U << 10) +#define LAN91C96_TOO_LONG (0x1U << 11) +#define LAN91C96_ODD_FRM (0x1U << 12) +#define LAN91C96_BAD_CRC (0x1U << 13) +#define LAN91C96_BROD_CAST (0x1U << 14) +#define LAN91C96_ALGN_ERR (0x1U << 15) + +#define FRAME_FILTER (LAN91C96_TOO_SHORT | LAN91C96_TOO_LONG | LAN91C96_BAD_CRC | LAN91C96_ALGN_ERR) + +/* + **************************************************************************** + * Default MAC Address + **************************************************************************** + */ +#define MAC_DEF_HI 0x0800 +#define MAC_DEF_MED 0x3333 +#define MAC_DEF_LO 0x0100 + +/* + **************************************************************************** + * Default I/O Signature - 0x33 + **************************************************************************** + */ +#define LAN91C96_LOW_SIGNATURE (0x33U << 0) +#define LAN91C96_HIGH_SIGNATURE (0x33U << 8) +#define LAN91C96_SIGNATURE (LAN91C96_HIGH_SIGNATURE | LAN91C96_LOW_SIGNATURE) + +#define LAN91C96_MAX_PAGES 6 // Maximum number of 256 pages. +#define ETHERNET_MAX_LENGTH 1514 + + + +/*------------------------------------------------------------------------- + * 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, LAN91C96_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( LAN91C96_INT_MASK );\ + mask |= (x);\ + SMC_outb( mask, LAN91C96_INT_MASK ); \ +} + +/* this disables an interrupt from the interrupt mask register */ + +#define SMC_DISABLE_INT(x) {\ + unsigned char mask;\ + SMC_SELECT_BANK(2);\ + mask = SMC_inb( LAN91C96_INT_MASK );\ + mask &= ~(x);\ + SMC_outb( mask, LAN91C96_INT_MASK ); \ +} + +/*---------------------------------------------------------------------- + * Define the interrupts that I want to receive from the card + * + * I want: + * LAN91C96_IST_EPH_INT, for nasty errors + * LAN91C96_IST_RCV_INT, for happy received packets + * LAN91C96_IST_RX_OVRN_INT, because I have to kick the receiver + *------------------------------------------------------------------------- + */ +#define SMC_INTERRUPT_MASK (LAN91C96_IST_EPH_INT | LAN91C96_IST_RX_OVRN_INT | LAN91C96_IST_RCV_INT) + +#endif /* _LAN91C96_H_ */ diff --git a/include/configs/lubbock.h b/include/configs/lubbock.h index 87282acc3..ba55af1bd 100644 --- a/include/configs/lubbock.h +++ b/include/configs/lubbock.h @@ -53,6 +53,8 @@ /* * Hardware drivers */ +#define CONFIG_DRIVER_LAN91C96 +#define CONFIG_LAN91C96_BASE 0x0C000000 /* * select serial console configuration @@ -64,7 +66,7 @@ #define CONFIG_BAUDRATE 115200 -#define CONFIG_COMMANDS (CONFIG_CMD_DFL & ~CFG_CMD_NET) +#define CONFIG_COMMANDS (CONFIG_CMD_DFL) /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */ #include <cmd_confdefs.h> diff --git a/lib_arm/board.c b/lib_arm/board.c index a725c2425..54f554b6d 100644 --- a/lib_arm/board.c +++ b/lib_arm/board.c @@ -42,6 +42,9 @@ const char version_string[] = extern void cs8900_get_enetaddr (uchar * addr); #endif +#ifdef CONFIG_DRIVER_LAN91C96 +#include "../drivers/lan91c96.h" +#endif /* * Begin and End of memory area for malloc(), and current "brk" */ @@ -275,6 +278,13 @@ void start_armboot (void) cs8900_get_enetaddr (gd->bd->bi_enetaddr); #endif +#ifdef CONFIG_DRIVER_LAN91C96 + if (getenv ("ethaddr")) { + smc_set_mac_addr(gd->bd->bi_enetaddr); + } + /* eth_hw_init(); */ +#endif /* CONFIG_DRIVER_LAN91C96 */ + /* Initialize from environment */ if ((s = getenv ("loadaddr")) != NULL) { load_addr = simple_strtoul (s, NULL, 16); diff --git a/post/sysmon.c b/post/sysmon.c index c8fcefca7..f069caa19 100644 --- a/post/sysmon.c +++ b/post/sysmon.c @@ -50,10 +50,10 @@ #include <watchdog.h> #include <i2c.h> -static int sysmon_temp_invalid = 0; - #if CONFIG_POST & CFG_POST_SYSMON +static int sysmon_temp_invalid = 0; + /* #define DEBUG */ #define RELOC(x) if (x != NULL) x = (void *) ((ulong) (x) + gd->reloc_off) diff --git a/post/uart.c b/post/uart.c index 354c6c7a3..3eaafd820 100644 --- a/post/uart.c +++ b/post/uart.c @@ -73,7 +73,9 @@ static struct { static char *ctlr_name[2] = { "SMC", "SCC" }; static int used_by_uart[2] = { -1, -1 }; +#if defined(SCC_ENET) static int used_by_ether[2] = { -1, -1 }; +#endif static int proff_smc[] = { PROFF_SMC1, PROFF_SMC2 }; static int proff_scc[] = |