drivers/net/sk98lin/uboot_drv.c

   1 /*
   2  * Driver for SysKonnect Gigabit Ethernet Server Adapters.
   3  *
   4  * (C) Copyright 2003
   5  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   6  *
   7  * See file CREDITS for list of people who contributed to this
   8  * project.
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License as
  12  * published by the Free Software Foundation; either version 2 of
  13  * the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  23  * MA 02111-1307 USA
  24  */
  25
  26 #include <common.h>
  27 #include <netdev.h>
  28
  29 #include "h/skdrv1st.h"
  30 #include "h/skdrv2nd.h"
  31 #include "u-boot_compat.h"
  32
  33
  34 #define SKGE_MAX_CARDS  2
  35
  36
  37 extern int skge_probe(struct eth_device **);
  38 extern void SkGeIsr(int irq, void *dev_id, struct pt_regs *ptregs);
  39 extern void SkGeIsrOnePort(int irq, void *dev_id, struct pt_regs *ptregs);
  40 extern int SkGeOpen(struct eth_device *);
  41 extern int SkGeClose(struct eth_device *);
  42 extern int SkGeXmit(struct sk_buff *skb, struct eth_device *dev);
  43 extern void ReceiveIrq(SK_AC *pAC, RX_PORT *pRxPort, SK_BOOL SlowPathLock);
  44
  45 static int skge_init(struct eth_device *dev, bd_t * bis);
  46 static int skge_send(struct eth_device *dev, volatile void *packet, int length);
  47 static int skge_recv(struct eth_device *dev);
  48 static void skge_halt(struct eth_device *dev);
  49
  50 int skge_initialize(bd_t * bis)
  51 {
  52         int numdev, i;
  53         struct eth_device *dev[SKGE_MAX_CARDS];
  54
  55         numdev = skge_probe(&dev[0]);
  56
  57         if (numdev > SKGE_MAX_CARDS)
  58         {
  59                 printf("ERROR: numdev > SKGE_MAX_CARDS\n");
  60         }
  61
  62         for (i = 0; i < numdev; i++)
  63         {
  64                 sprintf (dev[i]->name, "SK98#%d", i);
  65
  66                 dev[i]->init = skge_init;
  67                 dev[i]->halt = skge_halt;
  68                 dev[i]->send = skge_send;
  69                 dev[i]->recv = skge_recv;
  70
  71                 eth_register(dev[i]);
  72         }
  73
  74         return ((numdev > 0) && (numdev <= SKGE_MAX_CARDS) ? 0 : -1);
  75 }
  76
  77
  78 static int skge_init(struct eth_device *dev, bd_t * bis)
  79 {
  80         int ret;
  81         SK_AC * pAC = ((DEV_NET*)dev->priv)->pAC;
  82         int i;
  83
  84         ret = SkGeOpen(dev);
  85
  86         while (pAC->Rlmt.Port[0].PortState != SK_RLMT_PS_GOING_UP)
  87         {
  88                 SkGeIsrOnePort (0, pAC->dev[0], 0);
  89         }
  90
  91         for (i = 0; i < 100; i ++)
  92         {
  93                 udelay(1000);
  94         }
  95
  96         return ret;
  97 }
  98
  99
 100 static void skge_halt(struct eth_device *dev)
 101 {
 102         SkGeClose(dev);
 103 }
 104
 105
 106 static int skge_send(struct eth_device *dev, volatile void *packet,
 107                                                   int length)
 108 {
 109         int ret = -1;
 110         struct sk_buff * skb = alloc_skb(length, 0);
 111
 112         if (! skb)
 113         {
 114                 printf("skge_send: failed to alloc skb\n");
 115                 goto Done;
 116         }
 117
 118         memcpy(skb->data, (void*)packet, length);
 119         ret = SkGeXmit(skb, dev);
 120
 121 Done:
 122         return ret;
 123 }
 124
 125
 126 static int skge_recv(struct eth_device *dev)
 127 {
 128         DEV_NET         *pNet;
 129         SK_AC           *pAC;
 130         int             FromPort = 0;
 131
 132         pNet = (DEV_NET*) dev->priv;
 133         pAC = pNet->pAC;
 134
 135         ReceiveIrq(pAC, &pAC->RxPort[FromPort], SK_FALSE);
 136
 137         return 0;
 138 }