diff options
Diffstat (limited to 'board/evb64260')
| -rw-r--r-- | board/evb64260/eth.c | 797 |
1 files changed, 797 insertions, 0 deletions
diff --git a/board/evb64260/eth.c b/board/evb64260/eth.c new file mode 100644 index 0000000..76cf38a --- /dev/null +++ b/board/evb64260/eth.c @@ -0,0 +1,797 @@ +/************************************************************************** +Etherboot - BOOTP/TFTP Bootstrap Program +Skeleton NIC driver for Etherboot +***************************************************************************/ + +/* + * 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, or (at + * your option) any later version. + */ + +/* + * This file is a modified version from the Galileo polled mode + * network driver for the ethernet contained within the GT64260 + * chip. It has been modified to fit into the U-Boot framework, from + * the original (etherboot) setup. Also, additional cleanup and features + * were added. + * + * - Josh Huber <huber@mclx.com> + */ + +#include <common.h> +#include <malloc.h> +#include <cmd_bsp.h> +#include <galileo/gt64260R.h> +#include <galileo/core.h> +#include <asm/cache.h> +#include <miiphy.h> +#include <net.h> + +#include "eth.h" +#include "eth_addrtbl.h" + +#if (CONFIG_COMMANDS & CFG_CMD_NET) && defined(CONFIG_NET_MULTI) + +#define GT6426x_ETH_BUF_SIZE 1536 + +/* if you like verbose output, turn this on! */ +#undef DEBUG + +/* Restart autoneg if we detect link is up on phy init. */ + +/* + * The GT doc's say that after Rst is deasserted, and the PHY + * reports autoneg complete, it runs through its autoneg + * procedures. This doesn't seem to be the case for MII + * PHY's. To work around this check for link up && autoneg + * complete when initilizing the port. If they are both set, + * then restart PHY autoneg. Of course, it may be something + * completly different. + */ +#ifdef CONFIG_ETHER_PORT_MII +# define RESTART_AUTONEG +#endif + +/* do this if you dont want to use snooping */ +#define USE_SOFTWARE_CACHE_MANAGEMENT + +#ifdef USE_SOFTWARE_CACHE_MANAGEMENT +#define FLUSH_DCACHE(a,b) if(dcache_status()){clean_dcache_range((u32)(a),(u32)(b));} +#define FLUSH_AND_INVALIDATE_DCACHE(a,b) if(dcache_status()){flush_dcache_range((u32)(a),(u32)(b));} +#define INVALIDATE_DCACHE(a,b) if(dcache_status()){invalidate_dcache_range((u32)(a),(u32)(b));} +#else +/* bummer - w/o flush, nothing works, even with snooping - FIXME */ +/* #define FLUSH_DCACHE(a,b) */ +#define FLUSH_DCACHE(a,b) if(dcache_status()){clean_dcache_range((u32)(a),(u32)(b));} +#define FLUSH_AND_INVALIDATE_DCACHE(a,b) +#define INVALIDATE_DCACHE(a,b) +#endif +struct eth_dev_s { + eth0_tx_desc_single *eth_tx_desc; + eth0_rx_desc_single *eth_rx_desc; + char *eth_tx_buffer; + char *eth_rx_buffer[NR]; + int tdn, rdn; + int dev; + unsigned int reg_base; +}; + + +#ifdef CONFIG_INTEL_LXT97X +/* for intel LXT972 */ +static const char ether_port_phy_addr[3]={0,1,2}; +#else +static const char ether_port_phy_addr[3]={4,5,6}; +#endif + + +static inline unsigned short +miiphy_read_ret(unsigned short phy, unsigned short reg) +{ + unsigned short val; + miiphy_read(phy,reg,&val); + return val; +} + + +/************************************************************************** +RESET - Reset adapter +***************************************************************************/ +void +gt6426x_eth_reset(void *v) +{ + /* we should do something here... + struct eth_device *wp = (struct eth_device *)v; + struct eth_dev_s *p = wp->priv; + */ + + printf ("RESET\n"); + /* put the card in its initial state */ +} + +static void gt6426x_handle_SMI(struct eth_dev_s *p, unsigned int icr) +{ +#ifdef DEBUG + printf("SMI interrupt: "); + + if(icr&0x20000000) { + printf("SMI done\n"); + } +#endif + + if(icr&0x10000000) { + unsigned int psr; + psr=GTREGREAD(ETHERNET0_PORT_STATUS_REGISTER + p->reg_base); +#ifdef DEBUG + printf("PHY state change:\n" + " GT:%s:%s:%s:%s\n", + psr&1?"100":" 10", + psr&8?" Link":"nLink", + psr&2?"FD":"HD", + psr&4?" FC":"nFC"); + +#ifdef CONFIG_INTEL_LXT97X /* non-standard mii reg (intel lxt972a) */ + { + unsigned short mii_11; + mii_11=miiphy_read_ret(ether_port_phy_addr[p->dev],0x11); + + printf(" mii:%s:%s:%s:%s %s:%s %s\n", + mii_11&(1<<14)?"100":" 10", + mii_11&(1<<10)?" Link":"nLink", + mii_11&(1<<9)?"FD":"HD", + mii_11&(1<<4)?" FC":"nFC", + + mii_11&(1<<7)?"ANc":"ANnc", + mii_11&(1<<8)?"AN":"Manual", + "" + ); + } +#endif /* CONFIG_INTEL_LXT97X */ +#endif /* DEBUG */ + } +} + +static int +gt6426x_eth_receive(struct eth_dev_s *p,unsigned int icr) +{ + int eth_len=0; + char *eth_data; + + eth0_rx_desc_single *rx=&p->eth_rx_desc[(p->rdn)]; + + INVALIDATE_DCACHE((unsigned int)rx,(unsigned int)(rx+1)); + + if (rx->command_status & 0x80000000) { + return 0; /* No packet received */ + } + + eth_len = (unsigned int) + (rx->buff_size_byte_count) & 0x0000ffff; + eth_data = (char *) p->eth_rx_buffer[p->rdn]; + +#ifdef DEBUG + if (eth_len) { + printf ("%s: Recived %d byte Packet @ 0x%p\n", + __FUNCTION__, eth_len, eth_data); + } +#endif + /* + * packet is now in: + * eth0_rx_buffer[RDN_ETH0]; + */ + + /* let the upper layer handle the packet */ + NetReceive (eth_data, eth_len); + + rx->buff_size_byte_count = GT6426x_ETH_BUF_SIZE<<16; + + + /* GT96100 Owner */ + rx->command_status = 0x80000000; + + FLUSH_DCACHE((unsigned int)rx,(unsigned int)(rx+1)); + + p->rdn ++; + if (p->rdn == NR) {p->rdn = 0;} + + sync(); + + /* Start Rx*/ + GT_REG_WRITE (ETHERNET0_SDMA_COMMAND_REGISTER + p->reg_base, 0x00000080); + +#ifdef DEBUG + { + int i; + for (i=0;i<12;i++) { + printf(" %02x", eth_data[i]); + } + } + printf(": %d bytes\n", eth_len); +#endif + INVALIDATE_DCACHE((unsigned int)eth_data, + (unsigned int)eth_data+eth_len); + return eth_len; +} + +/************************************************************************** +POLL - look for an rx frame, handle other conditions +***************************************************************************/ +int +gt6426x_eth_poll(void *v) +{ + struct eth_device *wp = (struct eth_device *)v; + struct eth_dev_s *p = wp->priv; + unsigned int icr=GTREGREAD(ETHERNET0_INTERRUPT_CAUSE_REGISTER + p->reg_base); + + if(icr) { + GT_REG_WRITE(ETHERNET0_INTERRUPT_CAUSE_REGISTER +p->reg_base, 0); +#ifdef DEBUG + printf("poll got ICR %08x\n", icr); +#endif + /* SMI done or PHY state change*/ + if(icr&0x30000000) gt6426x_handle_SMI(p, icr); + } + /* always process. We aren't using RX interrupts */ + return gt6426x_eth_receive(p, icr); +} + +/************************************************************************** +TRANSMIT - Transmit a frame +***************************************************************************/ +int +gt6426x_eth_transmit(void *v, volatile char *p, unsigned int s) +{ + struct eth_device *wp = (struct eth_device *)v; + struct eth_dev_s *dev = (struct eth_dev_s *)wp->priv; +#ifdef DEBUG + unsigned int old_command_stat,old_psr; +#endif + eth0_tx_desc_single *tx=&dev->eth_tx_desc[dev->tdn]; + + /* wait for tx to be ready */ + INVALIDATE_DCACHE((unsigned int)tx,(unsigned int)(tx+1)); + while (tx->command_status & 0x80000000) { + int i; + for(i=0;i<1000;i++); + INVALIDATE_DCACHE((unsigned int)tx,(unsigned int)(tx+1)); + } + + GT_REG_WRITE (ETHERNET0_CURRENT_TX_DESCRIPTOR_POINTER0 + dev->reg_base, + (unsigned int)tx); + +#ifdef DEBUG + printf("copying to tx_buffer [%p], length %x, desc = %p\n", + dev->eth_tx_buffer, s, dev->eth_tx_desc); +#endif + memcpy(dev->eth_tx_buffer, (char *) p, s); + + tx->buff_pointer = dev->eth_tx_buffer; + tx->bytecount_reserved = ((__u16)s) << 16; + + /* 31 - own + * 22 - gencrc + * 18:16 - pad, last, first */ + tx->command_status = (1<<31) | (1<<22) | (7<<16); +#if 0 + /* FEr #18 */ + tx->next_desc = NULL; +#else + tx->next_desc = + (struct eth0_tx_desc_struct *) + &dev->eth_tx_desc[(dev->tdn+1)%NT].bytecount_reserved; + + /* cpu owned */ + dev->eth_tx_desc[(dev->tdn+1)%NT].command_status = (7<<16); /* pad, last, first */ +#endif + +#ifdef DEBUG + old_command_stat=tx->command_status, + old_psr=GTREGREAD(ETHERNET0_PORT_STATUS_REGISTER + dev->reg_base); +#endif + + FLUSH_DCACHE((unsigned int)tx, + (unsigned int)&dev->eth_tx_desc[(dev->tdn+2)%NT]); + + FLUSH_DCACHE((unsigned int)dev->eth_tx_buffer,(unsigned int)dev->eth_tx_buffer+s); + + GT_REG_WRITE(ETHERNET0_SDMA_COMMAND_REGISTER + dev->reg_base, 0x01000000); + +#ifdef DEBUG + { + unsigned int command_stat=0; + printf("cmd_stat: %08x PSR: %08x\n", old_command_stat, old_psr); + /* wait for tx to be ready */ + do { + unsigned int psr=GTREGREAD(ETHERNET0_PORT_STATUS_REGISTER + dev->reg_base); + command_stat=tx->command_status; + if(command_stat!=old_command_stat || psr !=old_psr) { + printf("cmd_stat: %08x PSR: %08x\n", command_stat, psr); + old_command_stat = command_stat; + old_psr = psr; + } + /* gt6426x_eth0_poll(); */ + } while (command_stat & 0x80000000); + + printf("sent %d byte frame\n", s); + + if((command_stat & (3<<15)) == 3) { + printf("frame had error (stat=%08x)\n", command_stat); + } + } +#endif + return 0; +} + +/************************************************************************** +DISABLE - Turn off ethernet interface +***************************************************************************/ +void +gt6426x_eth_disable(void *v) +{ + struct eth_device *wp = (struct eth_device *)v; + struct eth_dev_s *p = (struct eth_dev_s *)wp->priv; + + GT_REG_WRITE(ETHERNET0_SDMA_COMMAND_REGISTER + p->reg_base, 0x80008000); +} + +/************************************************************************** +MII utilities - write: write to an MII register via SMI +***************************************************************************/ +int +miiphy_write(unsigned char phy, unsigned char reg, + unsigned short data) +{ + unsigned int temp= (reg<<21) | (phy<<16) | data; + + while(GTREGREAD(ETHERNET_SMI_REGISTER) & (1<<28)); /* wait for !Busy */ + + GT_REG_WRITE(ETHERNET_SMI_REGISTER, temp); + return 0; +} + +/************************************************************************** +MII utilities - read: read from an MII register via SMI +***************************************************************************/ +int +miiphy_read(unsigned char phy, unsigned char reg, + unsigned short *val) +{ + unsigned int temp= (reg<<21) | (phy<<16) | 1<<26; + + while(GTREGREAD(ETHERNET_SMI_REGISTER) & (1<<28)); /* wait for !Busy */ + + GT_REG_WRITE(ETHERNET_SMI_REGISTER, temp); + + while(1) { + temp=GTREGREAD(ETHERNET_SMI_REGISTER); + if(temp & (1<<27)) break; /* wait for ReadValid */ + } + *val = temp & 0xffff; + + return 0; +} + +#ifdef DEBUG +/************************************************************************** +MII utilities - dump mii registers +***************************************************************************/ +static void +gt6426x_dump_mii(bd_t *bis, unsigned short phy) +{ + printf("mii reg 0 - 3: %04x %04x %04x %04x\n", + miiphy_read_ret(phy, 0x0), + miiphy_read_ret(phy, 0x1), + miiphy_read_ret(phy, 0x2), + miiphy_read_ret(phy, 0x3) + ); + printf(" 4 - 7: %04x %04x %04x %04x\n", + miiphy_read_ret(phy, 0x4), + miiphy_read_ret(phy, 0x5), + miiphy_read_ret(phy, 0x6), + miiphy_read_ret(phy, 0x7) + ); + printf(" 8: %04x\n", + miiphy_read_ret(phy, 0x8) + ); + printf(" 16-19: %04x %04x %04x %04x\n", + miiphy_read_ret(phy, 0x10), + miiphy_read_ret(phy, 0x11), + miiphy_read_ret(phy, 0x12), + miiphy_read_ret(phy, 0x13) + ); + printf(" 20,30: %04x %04x\n", + miiphy_read_ret(phy, 20), + miiphy_read_ret(phy, 30) + ); +} +#endif + +#ifdef RESTART_AUTONEG + +/* If link is up && autoneg compleate, and if + * GT and PHY disagree about link capabilitys, + * restart autoneg - something screwy with FD/HD + * unless we do this. */ +static void +check_phy_state(struct eth_dev_s *p) +{ + int bmsr = miiphy_read_ret(ether_port_phy_addr[p->dev], PHY_BMSR); + int psr = GTREGREAD(ETHERNET0_PORT_STATUS_REGISTER + p->reg_base); + + if ((psr & 1<<3) && (bmsr & PHY_BMSR_LS)) { + int nego = miiphy_read_ret(ether_port_phy_addr[p->dev], PHY_ANAR) & + miiphy_read_ret(ether_port_phy_addr[p->dev], PHY_ANLPAR); + int want; + + if (nego & PHY_ANLPAR_TXFD) { + want = 0x3; + printf("MII: 100Base-TX, Full Duplex\n"); + } else if (nego & PHY_ANLPAR_TX) { + want = 0x1; + printf("MII: 100Base-TX, Half Duplex\n"); + } else if (nego & PHY_ANLPAR_10FD) { + want = 0x2; + printf("MII: 10Base-T, Full Duplex\n"); + } else if (nego & PHY_ANLPAR_10) { + want = 0x0; + printf("MII: 10Base-T, Half Duplex\n"); + } else { + printf("MII: Unknown link-foo! %x\n", nego); + return; + } + + if ((psr & 0x3) != want) { + printf("MII: GT thinks %x, PHY thinks %x, restarting autoneg..\n", + psr & 0x3, want); + miiphy_write(ether_port_phy_addr[p->dev],0, + miiphy_read_ret(ether_port_phy_addr[p->dev],0) | (1<<9)); + udelay(10000); /* the EVB's GT takes a while to notice phy + went down and up */ + } + } +} +#endif + +/************************************************************************** +PROBE - Look for an adapter, this routine's visible to the outside +***************************************************************************/ +int +gt6426x_eth_probe(void *v, bd_t *bis) +{ + struct eth_device *wp = (struct eth_device *)v; + struct eth_dev_s *p = (struct eth_dev_s *)wp->priv; + int dev = p->dev; + unsigned int reg_base = p->reg_base; + unsigned long temp; + int i; + + if (( dev < 0 ) || ( dev >= GAL_ETH_DEVS )) + { /* This should never happen */ + printf("%s: Invalid device %d\n", __FUNCTION__, dev ); + return 0; + } + +#ifdef DEBUG + printf ("%s: initializing %s\n", __FUNCTION__, wp->name ); + printf ("\nCOMM_CONTROL = %08x , COMM_CONF = %08x\n", + GTREGREAD(COMM_UNIT_ARBITER_CONTROL), + GTREGREAD(COMM_UNIT_ARBITER_CONFIGURATION_REGISTER)); +#endif + + /* clear MIB counters */ + for(i=0;i<255; i++) + temp=GTREGREAD(ETHERNET0_MIB_COUNTER_BASE + reg_base +i); + +#ifdef CONFIG_INTEL_LXT97X + /* for intel LXT972 */ + + /* led 1: 0x1=txact + led 2: 0xc=link/rxact + led 3: 0x2=rxact (N/C) + strch: 0,2=30 ms, enable */ + miiphy_write(ether_port_phy_addr[p->dev], 20, 0x1c22); + + /* 2.7ns port rise time */ + /*miiphy_write(ether_port_phy_addr[p->dev], 30, 0x0<<10); */ +#else + /* already set up in mpsc.c */ + /*GT_REG_WRITE(MAIN_ROUTING_REGISTER, 0x7ffe38); / b400 */ + + /* already set up in sdram_init.S... */ + /* MPSC0, MPSC1, RMII */ + /*GT_REG_WRITE(SERIAL_PORT_MULTIPLEX, 0x1102); / f010 */ +#endif + GT_REG_WRITE(ETHERNET_PHY_ADDRESS_REGISTER, + ether_port_phy_addr[0] | + (ether_port_phy_addr[1]<<5) | + (ether_port_phy_addr[2]<<10)); /* 2000 */ + + /* 13:12 - 10: 4x64bit burst (cache line size = 32 bytes) + * 9 - 1: RIFB - interrupt on frame boundaries only + * 6:7 - 00: big endian rx and tx + * 5:2 - 1111: 15 retries */ + GT_REG_WRITE(ETHERNET0_SDMA_CONFIGURATION_REGISTER + reg_base, + (2<<12) | (1<<9) | (0xf<<2) ); /* 2440 */ + +#ifndef USE_SOFTWARE_CACHE_MANAGEMENT + /* enable rx/tx desc/buffer cache snoop */ + GT_REG_READ(ETHERNET_0_ADDRESS_CONTROL_LOW + dev*0x20, + &temp); /* f200 */ + temp|= (1<<6)| (1<<14)| (1<<22)| (1<<30); + GT_REG_WRITE(ETHERNET_0_ADDRESS_CONTROL_LOW + dev*0x20, + temp); +#endif + + /* 31 28 27 24 23 20 19 16 + * 0000 0000 0000 0000 [0004] + * 15 12 11 8 7 4 3 0 + * 1000 1101 0000 0000 [4d00] + * 20 - 0=MII 1=RMII + * 19 - 0=speed autoneg + * 15:14 - framesize 1536 (GT6426x_ETH_BUF_SIZE) + * 11 - no force link pass + * 10 - 1=disable fctl autoneg + * 8 - override prio ?? */ + temp = 0x00004d00; +#ifndef CONFIG_ETHER_PORT_MII + temp |= (1<<20); /* RMII */ +#endif + /* set En */ + GT_REG_WRITE(ETHERNET0_PORT_CONFIGURATION_EXTEND_REGISTER + reg_base, + temp); /* 2408 */ + + /* hardcode E1 also? */ + /* -- according to dox, this is safer due to extra pulldowns? */ + if (dev<2) { + GT_REG_WRITE(ETHERNET0_PORT_CONFIGURATION_EXTEND_REGISTER + (dev+1) * 0x400, + temp); /* 2408 */ + } + + /* wake up MAC */ /* 2400 */ + GT_REG_READ(ETHERNET0_PORT_CONFIGURATION_REGISTER + reg_base, &temp); + temp |= (1<<7); /* enable port */ +#ifdef CONFIG_GT_USE_MAC_HASH_TABLE + temp |= (1<<12); /* hash size 1/2k */ +#else + temp |= 1; /* promisc */ +#endif + GT_REG_WRITE(ETHERNET0_PORT_CONFIGURATION_REGISTER + reg_base, temp); + /* 2400 */ + +#ifdef RESTART_AUTONEG + check_phy_state(p); +#endif + + printf("%s: Waiting for link up..\n", wp->name); + temp = 10 * 1000; + /* wait for link back up */ + while(!(GTREGREAD(ETHERNET0_PORT_STATUS_REGISTER + reg_base) & 8) + && (--temp > 0)){ + udelay(1000); /* wait 1 ms */ + } + if ( temp == 0) { + printf("%s: Failed!\n", wp->name); + return (0); + } + + printf("%s: OK!\n", wp->name); + + p->tdn = 0; + p->rdn = 0; + p->eth_tx_desc[p->tdn].command_status = 0; + + /* Initialize Rx Side */ + for (temp = 0; temp < NR; temp++) { + p->eth_rx_desc[temp].buff_pointer = p->eth_rx_buffer[temp]; + p->eth_rx_desc[temp].buff_size_byte_count = GT6426x_ETH_BUF_SIZE<<16; + + /* GT96100 Owner */ + p->eth_rx_desc[temp].command_status = 0x80000000; + p->eth_rx_desc[temp].next_desc = + (struct eth0_rx_desc_struct *) + &p->eth_rx_desc[(temp+1)%NR].buff_size_byte_count; + } + + FLUSH_DCACHE((unsigned int)&p->eth_tx_desc[0], + (unsigned int)&p->eth_tx_desc[NR]); + FLUSH_DCACHE((unsigned int)&p->eth_rx_desc[0], + (unsigned int)&p->eth_rx_desc[NR]); + + GT_REG_WRITE(ETHERNET0_CURRENT_TX_DESCRIPTOR_POINTER0 + reg_base, + (unsigned int) p->eth_tx_desc); + GT_REG_WRITE(ETHERNET0_FIRST_RX_DESCRIPTOR_POINTER0 + reg_base, + (unsigned int) p->eth_rx_desc); + GT_REG_WRITE(ETHERNET0_CURRENT_RX_DESCRIPTOR_POINTER0 + reg_base, + (unsigned int) p->eth_rx_desc); + +#ifdef DEBUG + printf ("\nRx descriptor pointer is %08x %08x\n", + GTREGREAD(ETHERNET0_FIRST_RX_DESCRIPTOR_POINTER0 + reg_base), + GTREGREAD(ETHERNET0_CURRENT_RX_DESCRIPTOR_POINTER0 + reg_base)); + printf ("\n\n%08x %08x\n", + (unsigned int)p->eth_rx_desc,p->eth_rx_desc[0].command_status); + + printf ("Descriptor dump:\n"); + printf ("cmd status: %08x\n",p->eth_rx_desc[0].command_status); + printf ("byte_count: %08x\n",p->eth_rx_desc[0].buff_size_byte_count); + printf ("buff_ptr: %08x\n",(unsigned int)p->eth_rx_desc[0].buff_pointer); + printf ("next_desc: %08x\n\n",(unsigned int)p->eth_rx_desc[0].next_desc); + printf ("%08x\n",*(unsigned int *) ((unsigned int)p->eth_rx_desc + 0x0)); + printf ("%08x\n",*(unsigned int *) ((unsigned int)p->eth_rx_desc + 0x4)); + printf ("%08x\n",*(unsigned int *) ((unsigned int)p->eth_rx_desc + 0x8)); + printf ("%08x\n\n", + *(unsigned int *) ((unsigned int)p->eth_rx_desc + 0xc)); +#endif + +#ifdef DEBUG + gt6426x_dump_mii(bis,ether_port_phy_addr[p->dev]); +#endif + +#ifdef CONFIG_GT_USE_MAC_HASH_TABLE + { + unsigned int hashtable_base; + u8 *b = (u8 *)(wp->enetaddr); + u32 macH, macL; + + /* twist the MAC up into the way the discovery wants it */ + macH= (b[0]<<8) | b[1]; + macL= (b[2]<<24) | (b[3]<<16) | (b[4]<<8) | b[5]; + + /* mode 0, size 0x800 */ + hashtable_base =initAddressTable(dev,0,1); + + if(!hashtable_base) { + printf("initAddressTable failed\n"); + return 0; + } + + addAddressTableEntry(dev, macH, macL, 1, 0); + GT_REG_WRITE(ETHERNET0_HASH_TABLE_POINTER_REGISTER + reg_base, + hashtable_base); + } +#endif + + /* Start Rx*/ + GT_REG_WRITE(ETHERNET0_SDMA_COMMAND_REGISTER + reg_base, 0x00000080); + printf("%s: gt6426x eth device %d init success \n", wp->name, dev ); + return 1; +} + +/* enter all the galileo ethernet devs into MULTI-BOOT */ +void +gt6426x_eth_initialize(bd_t *bis) +{ + struct eth_device *dev; + struct eth_dev_s *p; + int devnum, x, temp; + char *s, *e, buf[64]; + +#ifdef DEBUG + printf( "\n%s\n", __FUNCTION ); +#endif + + for (devnum = 0; devnum < GAL_ETH_DEVS; devnum++) { + dev = calloc(sizeof(*dev), 1); + if (!dev) { + printf( "%s: gal_enet%d allocation failure, %s\n", + __FUNCTION__, devnum, "eth_device structure"); + return; + } + + /* must be less than NAMESIZE (16) */ + sprintf(dev->name, "gal_enet%d", devnum); + +#ifdef DEBUG + printf( "Initializing %s\n", dev->name ); +#endif + + /* Extract the MAC address from the environment */ + switch (devnum) + { + case 0: s = "ethaddr"; break; +#if (GAL_ETH_DEVS > 1) + case 1: s = "eth1addr"; break; +#endif +#if (GAL_ETH_DEVS > 2) + case 2: s = "eth2addr"; break; +#endif + default: /* this should never happen */ + printf( "%s: Invalid device number %d\n", + __FUNCTION__, devnum ); + return; + } + + temp = getenv_r (s, buf, sizeof(buf)); + s = (temp > 0) ? buf : NULL; + +#ifdef DEBUG + printf ("Setting MAC %d to %s\n", devnum, s ); +#endif + for (x = 0; x < 6; ++x) { + dev->enetaddr[x] = s ? simple_strtoul(s, &e, 16) : 0; + if (s) + s = (*e) ? e+1 : e; + } + + dev->init = (void*)gt6426x_eth_probe; + dev->halt = (void*)gt6426x_eth_reset; + dev->send = (void*)gt6426x_eth_transmit; + dev->recv = (void*)gt6426x_eth_poll; + + dev->priv = (void*)p = calloc( sizeof(*p), 1 ); + if (!p) + { + printf( "%s: %s allocation failure, %s\n", + __FUNCTION__, dev->name, "Private Device Structure"); + free(dev); + return; + } + + p->dev = devnum; + p->tdn=0; + p->rdn=0; + p->reg_base = devnum * ETHERNET_PORTS_DIFFERENCE_OFFSETS; + + p->eth_tx_desc = + (eth0_tx_desc_single *) + (((unsigned int) malloc(sizeof (eth0_tx_desc_single) * + (NT+1)) & 0xfffffff0) + 0x10); + if (!p) + { + printf( "%s: %s allocation failure, %s\n", + __FUNCTION__, dev->name, "Tx Descriptor"); + free(dev); + return; + } + + p->eth_rx_desc = + (eth0_rx_desc_single *) + (((unsigned int) malloc(sizeof (eth0_rx_desc_single) * + (NR+1)) & 0xfffffff0) + 0x10); + if (!p->eth_rx_desc) + { + printf( "%s: %s allocation failure, %s\n", + __FUNCTION__, dev->name, "Rx Descriptor"); + free(dev); + free(p); + return; + } + + p->eth_tx_buffer = + (char *) (((unsigned int) malloc(GT6426x_ETH_BUF_SIZE) & 0xfffffff0) + 0x10); + if (!p->eth_tx_buffer) + { + printf( "%s: %s allocation failure, %s\n", + __FUNCTION__, dev->name, "Tx Bufffer"); + free(dev); + free(p); + free(p->eth_rx_desc); + return; + } + + for (temp = 0 ; temp < NR ; temp ++) { + p->eth_rx_buffer[temp] = + (char *) + (((unsigned int) malloc(GT6426x_ETH_BUF_SIZE) & 0xfffffff0) + 0x10); + if (!p->eth_rx_buffer[temp]) + { + printf( "%s: %s allocation failure, %s\n", + __FUNCTION__, dev->name, "Rx Buffers"); + free(dev); + free(p); + free(p->eth_tx_buffer); + free(p->eth_rx_desc); + free(p->eth_tx_desc); + while (temp >= 0) + free(p->eth_rx_buffer[--temp]); + return; + } + } + + + eth_register(dev); + } +} +#endif /* CFG_CMD_NET && CONFIG_NET_MULTI */ |