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@@ -1,1017 +0,0 @@
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-/*
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- * drivers/net/ether00.c
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- *
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- * Copyright (C) 2001 Altera Corporation
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License as published by
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- * the Free Software Foundation; either version 2 of the License, or
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- * (at your option) any later version.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program; if not, write to the Free Software
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- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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- */
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-
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-/* includes */
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-#include <linux/config.h>
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-#include <linux/pci.h>
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-#include <linux/sched.h>
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-#include <linux/netdevice.h>
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-#include <linux/skbuff.h>
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-#include <linux/etherdevice.h>
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-#include <linux/module.h>
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-#include <linux/tqueue.h>
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-#include <linux/mtd/mtd.h>
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-#include <linux/pld/pld_hotswap.h>
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-#include <asm/arch/excalibur.h>
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-#include <asm/arch/hardware.h>
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-#include <asm/irq.h>
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-#include <asm/io.h>
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-#include <asm/sizes.h>
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-
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-#include <asm/arch/ether00.h>
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-#include <asm/arch/tdkphy.h>
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-
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-
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-MODULE_AUTHOR("Clive Davies");
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-MODULE_DESCRIPTION("Altera Ether00 IP core driver");
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-MODULE_LICENSE("GPL");
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-
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-#define PKT_BUF_SZ 1540 /* Size of each rx buffer */
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-#define ETH_NR 4 /* Number of MACs this driver supports */
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-
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-#define DEBUG(x)
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-
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-#define __dma_va(x) (unsigned int)((unsigned int)priv->dma_data+(((unsigned int)(x))&(EXC_SPSRAM_BLOCK0_SIZE-1)))
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-#define __dma_pa(x) (unsigned int)(EXC_SPSRAM_BLOCK0_BASE+(((unsigned int)(x))-(unsigned int)priv->dma_data))
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-
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-#define ETHER00_BASE 0
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-#define ETHER00_TYPE
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-#define ETHER00_NAME "ether00"
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-#define MAC_REG_SIZE 0x400 /* size of MAC register area */
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-
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-
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-
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-/* typedefs */
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-
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-/* The definition of the driver control structure */
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-
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-#define RX_NUM_BUFF 10
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-#define RX_NUM_FDESC 10
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-#define TX_NUM_FDESC 10
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-
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-struct tx_fda_ent{
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- FDA_DESC fd;
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- BUF_DESC bd;
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- BUF_DESC pad;
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-};
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-struct rx_fda_ent{
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- FDA_DESC fd;
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- BUF_DESC bd;
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- BUF_DESC pad;
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-};
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-struct rx_blist_ent{
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- FDA_DESC fd;
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- BUF_DESC bd;
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- BUF_DESC pad;
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-};
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-struct net_priv
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-{
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- struct net_device_stats stats;
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- struct sk_buff* skb;
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- void* dma_data;
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- struct rx_blist_ent* rx_blist_vp;
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- struct rx_fda_ent* rx_fda_ptr;
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- struct tx_fda_ent* tx_fdalist_vp;
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- struct tq_struct tq_memupdate;
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- unsigned char memupdate_scheduled;
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- unsigned char rx_disabled;
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- unsigned char queue_stopped;
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- spinlock_t rx_lock;
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-};
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-
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-static const char vendor_id[2]={0x07,0xed};
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-
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-#ifdef ETHER00_DEBUG
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-
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-/* Dump (most) registers for debugging puposes */
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-
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-static void dump_regs(struct net_device *dev){
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- struct net_priv* priv=dev->priv;
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- unsigned int* i;
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-
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- printk("\n RX free descriptor area:\n");
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-
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- for(i=(unsigned int*)priv->rx_fda_ptr;
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- i<((unsigned int*)(priv->rx_fda_ptr+RX_NUM_FDESC));){
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- printk("%#8x %#8x %#8x %#8x\n",*i,*(i+1),*(i+2),*(i+3));
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- i+=4;
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- }
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-
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- printk("\n RX buffer list:\n");
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-
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- for(i=(unsigned int*)priv->rx_blist_vp;
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- i<((unsigned int*)(priv->rx_blist_vp+RX_NUM_BUFF));){
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- printk("%#8x %#8x %#8x %#8x\n",*i,*(i+1),*(i+2),*(i+3));
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- i+=4;
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- }
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-
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- printk("\n TX frame descriptor list:\n");
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-
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- for(i=(unsigned int*)priv->tx_fdalist_vp;
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- i<((unsigned int*)(priv->tx_fdalist_vp+TX_NUM_FDESC));){
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- printk("%#8x %#8x %#8x %#8x\n",*i,*(i+1),*(i+2),*(i+3));
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- i+=4;
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- }
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-
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- printk("\ndma ctl=%#x\n",readw(ETHER_DMA_CTL(dev->base_addr)));
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- printk("txfrmptr=%#x\n",readw(ETHER_TXFRMPTR(dev->base_addr)));
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- printk("txthrsh=%#x\n",readw(ETHER_TXTHRSH(dev->base_addr)));
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- printk("txpollctr=%#x\n",readw(ETHER_TXPOLLCTR(dev->base_addr)));
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- printk("blfrmptr=%#x\n",readw(ETHER_BLFRMPTR(dev->base_addr)));
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- printk("rxfragsize=%#x\n",readw(ETHER_RXFRAGSIZE(dev->base_addr)));
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- printk("tx_int_en=%#x\n",readw(ETHER_INT_EN(dev->base_addr)));
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- printk("fda_bas=%#x\n",readw(ETHER_FDA_BAS(dev->base_addr)));
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- printk("fda_lim=%#x\n",readw(ETHER_FDA_LIM(dev->base_addr)));
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- printk("int_src=%#x\n",readw(ETHER_INT_SRC(dev->base_addr)));
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- printk("pausecnt=%#x\n",readw(ETHER_PAUSECNT(dev->base_addr)));
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- printk("rempaucnt=%#x\n",readw(ETHER_REMPAUCNT(dev->base_addr)));
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- printk("txconfrmstat=%#x\n",readw(ETHER_TXCONFRMSTAT(dev->base_addr)));
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- printk("mac_ctl=%#x\n",readw(ETHER_MAC_CTL(dev->base_addr)));
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- printk("arc_ctl=%#x\n",readw(ETHER_ARC_CTL(dev->base_addr)));
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- printk("tx_ctl=%#x\n",readw(ETHER_TX_CTL(dev->base_addr)));
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-}
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-#endif /* ETHER00_DEBUG */
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-
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-
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-static int ether00_write_phy(struct net_device *dev, short address, short value)
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-{
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- volatile int count = 1024;
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- writew(value,ETHER_MD_DATA(dev->base_addr));
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- writew( ETHER_MD_CA_BUSY_MSK |
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- ETHER_MD_CA_WR_MSK |
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- (address & ETHER_MD_CA_ADDR_MSK),
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- ETHER_MD_CA(dev->base_addr));
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-
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- /* Wait for the command to complete */
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- while((readw(ETHER_MD_CA(dev->base_addr)) & ETHER_MD_CA_BUSY_MSK)&&count){
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- count--;
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- }
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- if (!count){
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- printk("Write to phy failed, addr=%#x, data=%#x\n",address, value);
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- return -EIO;
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- }
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- return 0;
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-}
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-
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-static int ether00_read_phy(struct net_device *dev, short address)
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-{
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- volatile int count = 1024;
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- writew( ETHER_MD_CA_BUSY_MSK |
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- (address & ETHER_MD_CA_ADDR_MSK),
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- ETHER_MD_CA(dev->base_addr));
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-
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- /* Wait for the command to complete */
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- while((readw(ETHER_MD_CA(dev->base_addr)) & ETHER_MD_CA_BUSY_MSK)&&count){
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- count--;
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- }
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- if (!count){
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- printk(KERN_WARNING "Read from phy timed out\n");
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- return -EIO;
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- }
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- return readw(ETHER_MD_DATA(dev->base_addr));
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-}
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-
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-static void ether00_phy_int(int irq_num, void* dev_id, struct pt_regs* regs)
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-{
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- struct net_device* dev=dev_id;
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- int irq_status;
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-
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- irq_status=ether00_read_phy(dev, PHY_IRQ_CONTROL);
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-
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- if(irq_status & PHY_IRQ_CONTROL_ANEG_COMP_INT_MSK){
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- /*
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- * Autonegotiation complete on epxa10db. The mac doesn't
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- * twig if we're in full duplex so we need to check the
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- * phy status register and configure the mac accordingly
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- */
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- if(ether00_read_phy(dev, PHY_STATUS)&(PHY_STATUS_10T_F_MSK|PHY_STATUS_100_X_F_MSK)){
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- int tmp;
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- tmp=readl(ETHER_MAC_CTL(dev->base_addr));
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- writel(tmp|ETHER_MAC_CTL_FULLDUP_MSK,ETHER_MAC_CTL(dev->base_addr));
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- }
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- }
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-
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- if(irq_status&PHY_IRQ_CONTROL_LS_CHG_INT_MSK){
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-
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- if(ether00_read_phy(dev, PHY_STATUS)& PHY_STATUS_LINK_MSK){
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- /* Link is up */
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- netif_carrier_on(dev);
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- //printk("Carrier on\n");
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- }else{
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- netif_carrier_off(dev);
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- //printk("Carrier off\n");
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-
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- }
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- }
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-
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-}
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-
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-static void setup_blist_entry(struct sk_buff* skb,struct rx_blist_ent* blist_ent_ptr){
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- /* Make the buffer consistent with the cache as the mac is going to write
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- * directly into it*/
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- blist_ent_ptr->fd.FDSystem=(unsigned int)skb;
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- blist_ent_ptr->bd.BuffData=(char*)__pa(skb->data);
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- consistent_sync(skb->data,PKT_BUF_SZ,PCI_DMA_FROMDEVICE);
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- /* align IP on 16 Byte (DMA_CTL set to skip 2 bytes) */
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- skb_reserve(skb,2);
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- blist_ent_ptr->bd.BuffLength=PKT_BUF_SZ-2;
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- blist_ent_ptr->fd.FDLength=1;
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- blist_ent_ptr->fd.FDCtl=FDCTL_COWNSFD_MSK;
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- blist_ent_ptr->bd.BDCtl=BDCTL_COWNSBD_MSK;
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-}
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-
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-
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-static int ether00_mem_init(struct net_device* dev)
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-{
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- struct net_priv* priv=dev->priv;
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- struct tx_fda_ent *tx_fd_ptr,*tx_end_ptr;
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- struct rx_blist_ent* blist_ent_ptr;
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- int i;
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-
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- /*
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- * Grab a block of on chip SRAM to contain the control stuctures for
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- * the ethernet MAC. This uncached becuase it needs to be accesses by both
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- * bus masters (cpu + mac). However, it shouldn't matter too much in terms
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- * of speed as its on chip memory
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- */
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- priv->dma_data=ioremap_nocache(EXC_SPSRAM_BLOCK0_BASE,EXC_SPSRAM_BLOCK0_SIZE );
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- if (!priv->dma_data)
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- return -ENOMEM;
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-
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- priv->rx_fda_ptr=(struct rx_fda_ent*)priv->dma_data;
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- /*
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- * Now share it out amongst the Frame descriptors and the buffer list
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- */
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- priv->rx_blist_vp=(struct rx_blist_ent*)((unsigned int)priv->dma_data+RX_NUM_FDESC*sizeof(struct rx_fda_ent));
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-
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- /*
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- *Initalise the FDA list
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- */
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- /* set ownership to the controller */
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- memset(priv->rx_fda_ptr,0x80,RX_NUM_FDESC*sizeof(struct rx_fda_ent));
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-
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- /*
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- *Initialise the buffer list
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- */
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- blist_ent_ptr=priv->rx_blist_vp;
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- i=0;
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- while(blist_ent_ptr<(priv->rx_blist_vp+RX_NUM_BUFF)){
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- struct sk_buff *skb;
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- blist_ent_ptr->fd.FDLength=1;
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- skb=dev_alloc_skb(PKT_BUF_SZ);
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- if(skb){
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- setup_blist_entry(skb,blist_ent_ptr);
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- blist_ent_ptr->fd.FDNext=(FDA_DESC*)__dma_pa(blist_ent_ptr+1);
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- blist_ent_ptr->bd.BDStat=i++;
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- blist_ent_ptr++;
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- }
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- else
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- {
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- printk("Failed to initalise buffer list\n");
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- }
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-
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- }
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- blist_ent_ptr--;
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- blist_ent_ptr->fd.FDNext=(FDA_DESC*)__dma_pa(priv->rx_blist_vp);
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-
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- priv->tx_fdalist_vp=(struct tx_fda_ent*)(priv->rx_blist_vp+RX_NUM_BUFF);
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-
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- /* Initialise the buffers to be a circular list. The mac will then go poll
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- * the list until it finds a frame ready to transmit */
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- tx_end_ptr=priv->tx_fdalist_vp+TX_NUM_FDESC;
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- for(tx_fd_ptr=priv->tx_fdalist_vp;tx_fd_ptr<tx_end_ptr;tx_fd_ptr++){
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- tx_fd_ptr->fd.FDNext=(FDA_DESC*)__dma_pa((tx_fd_ptr+1));
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- tx_fd_ptr->fd.FDCtl=1;
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- tx_fd_ptr->fd.FDStat=0;
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- tx_fd_ptr->fd.FDLength=1;
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-
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- }
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- /* Change the last FDNext pointer to make a circular list */
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- tx_fd_ptr--;
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- tx_fd_ptr->fd.FDNext=(FDA_DESC*)__dma_pa(priv->tx_fdalist_vp);
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-
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- /* Point the device at the chain of Rx and Tx Buffers */
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- writel((unsigned int)__dma_pa(priv->rx_fda_ptr),ETHER_FDA_BAS(dev->base_addr));
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- writel((RX_NUM_FDESC-1)*sizeof(struct rx_fda_ent),ETHER_FDA_LIM(dev->base_addr));
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- writel((unsigned int)__dma_pa(priv->rx_blist_vp),ETHER_BLFRMPTR(dev->base_addr));
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-
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- writel((unsigned int)__dma_pa(priv->tx_fdalist_vp),ETHER_TXFRMPTR(dev->base_addr));
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-
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- return 0;
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-}
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-
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-
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-void ether00_mem_update(void* dev_id)
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-{
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- struct net_device* dev=dev_id;
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- struct net_priv* priv=dev->priv;
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- struct sk_buff* skb;
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- struct tx_fda_ent *fda_ptr=priv->tx_fdalist_vp;
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- struct rx_blist_ent* blist_ent_ptr;
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- unsigned long flags;
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-
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- priv->tq_memupdate.sync=0;
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- //priv->tq_memupdate.list=
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- priv->memupdate_scheduled=0;
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-
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- /* Transmit interrupt */
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- while(fda_ptr<(priv->tx_fdalist_vp+TX_NUM_FDESC)){
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- if(!(FDCTL_COWNSFD_MSK&fda_ptr->fd.FDCtl) && (ETHER_TX_STAT_COMP_MSK&fda_ptr->fd.FDStat)){
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- priv->stats.tx_packets++;
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- priv->stats.tx_bytes+=fda_ptr->bd.BuffLength;
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- skb=(struct sk_buff*)fda_ptr->fd.FDSystem;
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- //printk("%d:txcln:fda=%#x skb=%#x\n",jiffies,fda_ptr,skb);
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- dev_kfree_skb(skb);
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- fda_ptr->fd.FDSystem=0;
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- fda_ptr->fd.FDStat=0;
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- fda_ptr->fd.FDCtl=0;
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- }
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- fda_ptr++;
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- }
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- /* Fill in any missing buffers from the received queue */
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- spin_lock_irqsave(&priv->rx_lock,flags);
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- blist_ent_ptr=priv->rx_blist_vp;
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- while(blist_ent_ptr<(priv->rx_blist_vp+RX_NUM_BUFF)){
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- /* fd.FDSystem of 0 indicates we failed to allocate the buffer in the ISR */
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- if(!blist_ent_ptr->fd.FDSystem){
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- struct sk_buff *skb;
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|
|
- skb=dev_alloc_skb(PKT_BUF_SZ);
|
|
|
- blist_ent_ptr->fd.FDSystem=(unsigned int)skb;
|
|
|
- if(skb){
|
|
|
- setup_blist_entry(skb,blist_ent_ptr);
|
|
|
- }
|
|
|
- else
|
|
|
- {
|
|
|
- break;
|
|
|
- }
|
|
|
- }
|
|
|
- blist_ent_ptr++;
|
|
|
- }
|
|
|
- spin_unlock_irqrestore(&priv->rx_lock,flags);
|
|
|
- if(priv->queue_stopped){
|
|
|
- //printk("%d:cln:start q\n",jiffies);
|
|
|
- netif_start_queue(dev);
|
|
|
- }
|
|
|
- if(priv->rx_disabled){
|
|
|
- //printk("%d:enable_irq\n",jiffies);
|
|
|
- priv->rx_disabled=0;
|
|
|
- writel(ETHER_RX_CTL_RXEN_MSK,ETHER_RX_CTL(dev->base_addr));
|
|
|
-
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-static void ether00_int( int irq_num, void* dev_id, struct pt_regs* regs)
|
|
|
-{
|
|
|
- struct net_device* dev=dev_id;
|
|
|
- struct net_priv* priv=dev->priv;
|
|
|
-
|
|
|
- unsigned int interruptValue;
|
|
|
-
|
|
|
- interruptValue=readl(ETHER_INT_SRC(dev->base_addr));
|
|
|
-
|
|
|
- //printk("INT_SRC=%x\n",interruptValue);
|
|
|
-
|
|
|
- if(!(readl(ETHER_INT_SRC(dev->base_addr)) & ETHER_INT_SRC_IRQ_MSK))
|
|
|
- {
|
|
|
- return; /* Interrupt wasn't caused by us!! */
|
|
|
- }
|
|
|
-
|
|
|
- if(readl(ETHER_INT_SRC(dev->base_addr))&
|
|
|
- (ETHER_INT_SRC_INTMACRX_MSK |
|
|
|
- ETHER_INT_SRC_FDAEX_MSK |
|
|
|
- ETHER_INT_SRC_BLEX_MSK)) {
|
|
|
- struct rx_blist_ent* blist_ent_ptr;
|
|
|
- struct rx_fda_ent* fda_ent_ptr;
|
|
|
- struct sk_buff* skb;
|
|
|
-
|
|
|
- fda_ent_ptr=priv->rx_fda_ptr;
|
|
|
- spin_lock(&priv->rx_lock);
|
|
|
- while(fda_ent_ptr<(priv->rx_fda_ptr+RX_NUM_FDESC)){
|
|
|
- int result;
|
|
|
-
|
|
|
- if(!(fda_ent_ptr->fd.FDCtl&FDCTL_COWNSFD_MSK))
|
|
|
- {
|
|
|
- /* This frame is ready for processing */
|
|
|
- /*find the corresponding buffer in the bufferlist */
|
|
|
- blist_ent_ptr=priv->rx_blist_vp+fda_ent_ptr->bd.BDStat;
|
|
|
- skb=(struct sk_buff*)blist_ent_ptr->fd.FDSystem;
|
|
|
-
|
|
|
- /* Pass this skb up the stack */
|
|
|
- skb->dev=dev;
|
|
|
- skb_put(skb,fda_ent_ptr->fd.FDLength);
|
|
|
- skb->protocol=eth_type_trans(skb,dev);
|
|
|
- skb->ip_summed=CHECKSUM_UNNECESSARY;
|
|
|
- result=netif_rx(skb);
|
|
|
- /* Update statistics */
|
|
|
- priv->stats.rx_packets++;
|
|
|
- priv->stats.rx_bytes+=fda_ent_ptr->fd.FDLength;
|
|
|
-
|
|
|
- /* Free the FDA entry */
|
|
|
- fda_ent_ptr->bd.BDStat=0xff;
|
|
|
- fda_ent_ptr->fd.FDCtl=FDCTL_COWNSFD_MSK;
|
|
|
-
|
|
|
- /* Allocate a new skb and point the bd entry to it */
|
|
|
- blist_ent_ptr->fd.FDSystem=0;
|
|
|
- skb=dev_alloc_skb(PKT_BUF_SZ);
|
|
|
- //printk("allocskb=%#x\n",skb);
|
|
|
- if(skb){
|
|
|
- setup_blist_entry(skb,blist_ent_ptr);
|
|
|
-
|
|
|
- }
|
|
|
- else if(!priv->memupdate_scheduled){
|
|
|
- int tmp;
|
|
|
- /* There are no buffers at the moment, so schedule */
|
|
|
- /* the background task to sort this out */
|
|
|
- schedule_task(&priv->tq_memupdate);
|
|
|
- priv->memupdate_scheduled=1;
|
|
|
- printk(KERN_DEBUG "%s:No buffers",dev->name);
|
|
|
- /* If this interrupt was due to a lack of buffers then
|
|
|
- * we'd better stop the receiver too */
|
|
|
- if(interruptValueÐER_INT_SRC_BLEX_MSK){
|
|
|
- priv->rx_disabled=1;
|
|
|
- tmp=readl(ETHER_INT_SRC(dev->base_addr));
|
|
|
- writel(tmp&~ETHER_RX_CTL_RXEN_MSK,ETHER_RX_CTL(dev->base_addr));
|
|
|
- printk(KERN_DEBUG "%s:Halting rx",dev->name);
|
|
|
- }
|
|
|
-
|
|
|
- }
|
|
|
-
|
|
|
- }
|
|
|
- fda_ent_ptr++;
|
|
|
- }
|
|
|
- spin_unlock(&priv->rx_lock);
|
|
|
-
|
|
|
- /* Clear the interrupts */
|
|
|
- writel(ETHER_INT_SRC_INTMACRX_MSK | ETHER_INT_SRC_FDAEX_MSK
|
|
|
- | ETHER_INT_SRC_BLEX_MSK,ETHER_INT_SRC(dev->base_addr));
|
|
|
-
|
|
|
- }
|
|
|
-
|
|
|
- if(readl(ETHER_INT_SRC(dev->base_addr))ÐER_INT_SRC_INTMACTX_MSK){
|
|
|
-
|
|
|
- if(!priv->memupdate_scheduled){
|
|
|
- schedule_task(&priv->tq_memupdate);
|
|
|
- priv->memupdate_scheduled=1;
|
|
|
- }
|
|
|
- /* Clear the interrupt */
|
|
|
- writel(ETHER_INT_SRC_INTMACTX_MSK,ETHER_INT_SRC(dev->base_addr));
|
|
|
- }
|
|
|
-
|
|
|
- if (readl(ETHER_INT_SRC(dev->base_addr)) & (ETHER_INT_SRC_SWINT_MSK|
|
|
|
- ETHER_INT_SRC_INTEARNOT_MSK|
|
|
|
- ETHER_INT_SRC_INTLINK_MSK|
|
|
|
- ETHER_INT_SRC_INTEXBD_MSK|
|
|
|
- ETHER_INT_SRC_INTTXCTLCMP_MSK))
|
|
|
- {
|
|
|
- /*
|
|
|
- * Not using any of these so they shouldn't happen
|
|
|
- *
|
|
|
- * In the cased of INTEXBD - if you allocate more
|
|
|
- * than 28 decsriptors you may need to think about this
|
|
|
- */
|
|
|
- printk("Not using this interrupt\n");
|
|
|
- }
|
|
|
-
|
|
|
- if (readl(ETHER_INT_SRC(dev->base_addr)) &
|
|
|
- (ETHER_INT_SRC_INTSBUS_MSK |
|
|
|
- ETHER_INT_SRC_INTNRABT_MSK
|
|
|
- |ETHER_INT_SRC_DMPARERR_MSK))
|
|
|
- {
|
|
|
- /*
|
|
|
- * Hardware errors, we can either ignore them and hope they go away
|
|
|
- *or reset the device, I'll try the first for now to see if they happen
|
|
|
- */
|
|
|
- printk("Hardware error\n");
|
|
|
- }
|
|
|
-}
|
|
|
-
|
|
|
-static void ether00_setup_ethernet_address(struct net_device* dev)
|
|
|
-{
|
|
|
- int tmp;
|
|
|
-
|
|
|
- dev->addr_len=6;
|
|
|
- writew(0,ETHER_ARC_ADR(dev->base_addr));
|
|
|
- writel((dev->dev_addr[0]<<24) |
|
|
|
- (dev->dev_addr[1]<<16) |
|
|
|
- (dev->dev_addr[2]<<8) |
|
|
|
- dev->dev_addr[3],
|
|
|
- ETHER_ARC_DATA(dev->base_addr));
|
|
|
-
|
|
|
- writew(4,ETHER_ARC_ADR(dev->base_addr));
|
|
|
- tmp=readl(ETHER_ARC_DATA(dev->base_addr));
|
|
|
- tmp&=0xffff;
|
|
|
- tmp|=(dev->dev_addr[4]<<24) | (dev->dev_addr[5]<<16);
|
|
|
- writel(tmp, ETHER_ARC_DATA(dev->base_addr));
|
|
|
- /* Enable this entry in the ARC */
|
|
|
-
|
|
|
- writel(1,ETHER_ARC_ENA(dev->base_addr));
|
|
|
-
|
|
|
- return;
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-static void ether00_reset(struct net_device *dev)
|
|
|
-{
|
|
|
- /* reset the controller */
|
|
|
- writew(ETHER_MAC_CTL_RESET_MSK,ETHER_MAC_CTL(dev->base_addr));
|
|
|
-
|
|
|
- /*
|
|
|
- * Make sure we're not going to send anything
|
|
|
- */
|
|
|
-
|
|
|
- writew(ETHER_TX_CTL_TXHALT_MSK,ETHER_TX_CTL(dev->base_addr));
|
|
|
-
|
|
|
- /*
|
|
|
- * Make sure we're not going to receive anything
|
|
|
- */
|
|
|
- writew(ETHER_RX_CTL_RXHALT_MSK,ETHER_RX_CTL(dev->base_addr));
|
|
|
-
|
|
|
- /*
|
|
|
- * Disable Interrupts for now, and set the burst size to 8 bytes
|
|
|
- */
|
|
|
-
|
|
|
- writel(ETHER_DMA_CTL_INTMASK_MSK |
|
|
|
- ((8 << ETHER_DMA_CTL_DMBURST_OFST) & ETHER_DMA_CTL_DMBURST_MSK)
|
|
|
- |(2<<ETHER_DMA_CTL_RXALIGN_OFST),
|
|
|
- ETHER_DMA_CTL(dev->base_addr));
|
|
|
-
|
|
|
-
|
|
|
- /*
|
|
|
- * Set TxThrsh - start transmitting a packet after 1514
|
|
|
- * bytes or when a packet is complete, whichever comes first
|
|
|
- */
|
|
|
- writew(1514,ETHER_TXTHRSH(dev->base_addr));
|
|
|
-
|
|
|
- /*
|
|
|
- * Set TxPollCtr. Each cycle is
|
|
|
- * 61.44 microseconds with a 33 MHz bus
|
|
|
- */
|
|
|
- writew(1,ETHER_TXPOLLCTR(dev->base_addr));
|
|
|
-
|
|
|
- /*
|
|
|
- * Set Rx_Ctl - Turn off reception and let RxData turn it
|
|
|
- * on later
|
|
|
- */
|
|
|
- writew(ETHER_RX_CTL_RXHALT_MSK,ETHER_RX_CTL(dev->base_addr));
|
|
|
-
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-static void ether00_set_multicast(struct net_device* dev)
|
|
|
-{
|
|
|
- int count=dev->mc_count;
|
|
|
-
|
|
|
- /* Set promiscuous mode if it's asked for. */
|
|
|
-
|
|
|
- if (dev->flags&IFF_PROMISC){
|
|
|
-
|
|
|
- writew( ETHER_ARC_CTL_COMPEN_MSK |
|
|
|
- ETHER_ARC_CTL_BROADACC_MSK |
|
|
|
- ETHER_ARC_CTL_GROUPACC_MSK |
|
|
|
- ETHER_ARC_CTL_STATIONACC_MSK,
|
|
|
- ETHER_ARC_CTL(dev->base_addr));
|
|
|
- return;
|
|
|
- }
|
|
|
-
|
|
|
- /*
|
|
|
- * Get all multicast packets if required, or if there are too
|
|
|
- * many addresses to fit in hardware
|
|
|
- */
|
|
|
- if (dev->flags & IFF_ALLMULTI){
|
|
|
- writew( ETHER_ARC_CTL_COMPEN_MSK |
|
|
|
- ETHER_ARC_CTL_GROUPACC_MSK |
|
|
|
- ETHER_ARC_CTL_BROADACC_MSK,
|
|
|
- ETHER_ARC_CTL(dev->base_addr));
|
|
|
- return;
|
|
|
- }
|
|
|
- if (dev->mc_count > (ETHER_ARC_SIZE - 1)){
|
|
|
-
|
|
|
- printk(KERN_WARNING "Too many multicast addresses for hardware to filter - receiving all multicast packets\n");
|
|
|
- writew( ETHER_ARC_CTL_COMPEN_MSK |
|
|
|
- ETHER_ARC_CTL_GROUPACC_MSK |
|
|
|
- ETHER_ARC_CTL_BROADACC_MSK,
|
|
|
- ETHER_ARC_CTL(dev->base_addr));
|
|
|
- return;
|
|
|
- }
|
|
|
-
|
|
|
- if(dev->mc_count){
|
|
|
- struct dev_mc_list *mc_list_ent=dev->mc_list;
|
|
|
- unsigned int temp,i;
|
|
|
- DEBUG(printk("mc_count=%d mc_list=%#x\n",dev-> mc_count, dev->mc_list));
|
|
|
- DEBUG(printk("mc addr=%02#x%02x%02x%02x%02x%02x\n",
|
|
|
- mc_list_ent->dmi_addr[5],
|
|
|
- mc_list_ent->dmi_addr[4],
|
|
|
- mc_list_ent->dmi_addr[3],
|
|
|
- mc_list_ent->dmi_addr[2],
|
|
|
- mc_list_ent->dmi_addr[1],
|
|
|
- mc_list_ent->dmi_addr[0]);)
|
|
|
-
|
|
|
- /*
|
|
|
- * The first 6 bytes are the MAC address, so
|
|
|
- * don't change them!
|
|
|
- */
|
|
|
- writew(4,ETHER_ARC_ADR(dev->base_addr));
|
|
|
- temp=readl(ETHER_ARC_DATA(dev->base_addr));
|
|
|
- temp&=0xffff0000;
|
|
|
-
|
|
|
- /* Disable the current multicast stuff */
|
|
|
- writel(1,ETHER_ARC_ENA(dev->base_addr));
|
|
|
-
|
|
|
- for(;;){
|
|
|
- temp|=mc_list_ent->dmi_addr[1] |
|
|
|
- mc_list_ent->dmi_addr[0]<<8;
|
|
|
- writel(temp,ETHER_ARC_DATA(dev->base_addr));
|
|
|
-
|
|
|
- i=readl(ETHER_ARC_ADR(dev->base_addr));
|
|
|
- writew(i+4,ETHER_ARC_ADR(dev->base_addr));
|
|
|
-
|
|
|
- temp=mc_list_ent->dmi_addr[5]|
|
|
|
- mc_list_ent->dmi_addr[4]<<8 |
|
|
|
- mc_list_ent->dmi_addr[3]<<16 |
|
|
|
- mc_list_ent->dmi_addr[2]<<24;
|
|
|
- writel(temp,ETHER_ARC_DATA(dev->base_addr));
|
|
|
-
|
|
|
- count--;
|
|
|
- if(!mc_list_ent->next || !count){
|
|
|
- break;
|
|
|
- }
|
|
|
- DEBUG(printk("mc_list_next=%#x\n",mc_list_ent->next);)
|
|
|
- mc_list_ent=mc_list_ent->next;
|
|
|
-
|
|
|
-
|
|
|
- i=readl(ETHER_ARC_ADR(dev->base_addr));
|
|
|
- writel(i+4,ETHER_ARC_ADR(dev->base_addr));
|
|
|
-
|
|
|
- temp=mc_list_ent->dmi_addr[3]|
|
|
|
- mc_list_ent->dmi_addr[2]<<8 |
|
|
|
- mc_list_ent->dmi_addr[1]<<16 |
|
|
|
- mc_list_ent->dmi_addr[0]<<24;
|
|
|
- writel(temp,ETHER_ARC_DATA(dev->base_addr));
|
|
|
-
|
|
|
- i=readl(ETHER_ARC_ADR(dev->base_addr));
|
|
|
- writel(i+4,ETHER_ARC_ADR(dev->base_addr));
|
|
|
-
|
|
|
- temp=mc_list_ent->dmi_addr[4]<<16 |
|
|
|
- mc_list_ent->dmi_addr[5]<<24;
|
|
|
-
|
|
|
- writel(temp,ETHER_ARC_DATA(dev->base_addr));
|
|
|
-
|
|
|
- count--;
|
|
|
- if(!mc_list_ent->next || !count){
|
|
|
- break;
|
|
|
- }
|
|
|
- mc_list_ent=mc_list_ent->next;
|
|
|
- }
|
|
|
-
|
|
|
-
|
|
|
- if(count)
|
|
|
- printk(KERN_WARNING "Multicast list size error\n");
|
|
|
-
|
|
|
-
|
|
|
- writew( ETHER_ARC_CTL_BROADACC_MSK|
|
|
|
- ETHER_ARC_CTL_COMPEN_MSK,
|
|
|
- ETHER_ARC_CTL(dev->base_addr));
|
|
|
-
|
|
|
- }
|
|
|
-
|
|
|
- /* enable the active ARC enties */
|
|
|
- writew((1<<(count+2))-1,ETHER_ARC_ENA(dev->base_addr));
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-static int ether00_open(struct net_device* dev)
|
|
|
-{
|
|
|
- int result,tmp;
|
|
|
- struct net_priv* priv;
|
|
|
-
|
|
|
- if (!is_valid_ether_addr(dev->dev_addr))
|
|
|
- return -EINVAL;
|
|
|
-
|
|
|
- /* Install interrupt handlers */
|
|
|
- result=request_irq(dev->irq,ether00_int,0,"ether00",dev);
|
|
|
- if(result)
|
|
|
- goto open_err1;
|
|
|
-
|
|
|
- result=request_irq(2,ether00_phy_int,0,"ether00_phy",dev);
|
|
|
- if(result)
|
|
|
- goto open_err2;
|
|
|
-
|
|
|
- ether00_reset(dev);
|
|
|
- result=ether00_mem_init(dev);
|
|
|
- if(result)
|
|
|
- goto open_err3;
|
|
|
-
|
|
|
-
|
|
|
- ether00_setup_ethernet_address(dev);
|
|
|
-
|
|
|
- ether00_set_multicast(dev);
|
|
|
-
|
|
|
- result=ether00_write_phy(dev,PHY_CONTROL, PHY_CONTROL_ANEGEN_MSK | PHY_CONTROL_RANEG_MSK);
|
|
|
- if(result)
|
|
|
- goto open_err4;
|
|
|
- result=ether00_write_phy(dev,PHY_IRQ_CONTROL, PHY_IRQ_CONTROL_LS_CHG_IE_MSK |
|
|
|
- PHY_IRQ_CONTROL_ANEG_COMP_IE_MSK);
|
|
|
- if(result)
|
|
|
- goto open_err4;
|
|
|
-
|
|
|
- /* Start the device enable interrupts */
|
|
|
- writew(ETHER_RX_CTL_RXEN_MSK
|
|
|
-// | ETHER_RX_CTL_STRIPCRC_MSK
|
|
|
- | ETHER_RX_CTL_ENGOOD_MSK
|
|
|
- | ETHER_RX_CTL_ENRXPAR_MSK| ETHER_RX_CTL_ENLONGERR_MSK
|
|
|
- | ETHER_RX_CTL_ENOVER_MSK| ETHER_RX_CTL_ENCRCERR_MSK,
|
|
|
- ETHER_RX_CTL(dev->base_addr));
|
|
|
-
|
|
|
- writew(ETHER_TX_CTL_TXEN_MSK|
|
|
|
- ETHER_TX_CTL_ENEXDEFER_MSK|
|
|
|
- ETHER_TX_CTL_ENLCARR_MSK|
|
|
|
- ETHER_TX_CTL_ENEXCOLL_MSK|
|
|
|
- ETHER_TX_CTL_ENLATECOLL_MSK|
|
|
|
- ETHER_TX_CTL_ENTXPAR_MSK|
|
|
|
- ETHER_TX_CTL_ENCOMP_MSK,
|
|
|
- ETHER_TX_CTL(dev->base_addr));
|
|
|
-
|
|
|
- tmp=readl(ETHER_DMA_CTL(dev->base_addr));
|
|
|
- writel(tmp&~ETHER_DMA_CTL_INTMASK_MSK,ETHER_DMA_CTL(dev->base_addr));
|
|
|
-
|
|
|
- return 0;
|
|
|
-
|
|
|
- open_err4:
|
|
|
- ether00_reset(dev);
|
|
|
- open_err3:
|
|
|
- free_irq(2,dev);
|
|
|
- open_err2:
|
|
|
- free_irq(dev->irq,dev);
|
|
|
- open_err1:
|
|
|
- return result;
|
|
|
-
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-static int ether00_tx(struct sk_buff* skb, struct net_device* dev)
|
|
|
-{
|
|
|
- struct net_priv *priv=dev->priv;
|
|
|
- struct tx_fda_ent *fda_ptr;
|
|
|
- int i;
|
|
|
-
|
|
|
-
|
|
|
- /*
|
|
|
- * Find an empty slot in which to stick the frame
|
|
|
- */
|
|
|
- fda_ptr=(struct tx_fda_ent*)__dma_va(readl(ETHER_TXFRMPTR(dev->base_addr)));
|
|
|
- i=0;
|
|
|
- while(i<TX_NUM_FDESC){
|
|
|
- if (fda_ptr->fd.FDStat||(fda_ptr->fd.FDCtl & FDCTL_COWNSFD_MSK)){
|
|
|
- fda_ptr =(struct tx_fda_ent*) __dma_va((struct tx_fda_ent*)fda_ptr->fd.FDNext);
|
|
|
- }
|
|
|
- else {
|
|
|
- break;
|
|
|
- }
|
|
|
- i++;
|
|
|
- }
|
|
|
-
|
|
|
- /* Write the skb data from the cache*/
|
|
|
- consistent_sync(skb->data,skb->len,PCI_DMA_TODEVICE);
|
|
|
- fda_ptr->bd.BuffData=(char*)__pa(skb->data);
|
|
|
- fda_ptr->bd.BuffLength=(unsigned short)skb->len;
|
|
|
- /* Save the pointer to the skb for freeing later */
|
|
|
- fda_ptr->fd.FDSystem=(unsigned int)skb;
|
|
|
- fda_ptr->fd.FDStat=0;
|
|
|
- /* Pass ownership of the buffers to the controller */
|
|
|
- fda_ptr->fd.FDCtl=1;
|
|
|
- fda_ptr->fd.FDCtl|=FDCTL_COWNSFD_MSK;
|
|
|
-
|
|
|
- /* If the next buffer in the list is full, stop the queue */
|
|
|
- fda_ptr=(struct tx_fda_ent*)__dma_va(fda_ptr->fd.FDNext);
|
|
|
- if ((fda_ptr->fd.FDStat)||(fda_ptr->fd.FDCtl & FDCTL_COWNSFD_MSK)){
|
|
|
- netif_stop_queue(dev);
|
|
|
- priv->queue_stopped=1;
|
|
|
- }
|
|
|
-
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-static struct net_device_stats *ether00_stats(struct net_device* dev)
|
|
|
-{
|
|
|
- struct net_priv *priv=dev->priv;
|
|
|
- return &priv->stats;
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-static int ether00_stop(struct net_device* dev)
|
|
|
-{
|
|
|
- struct net_priv *priv=dev->priv;
|
|
|
- int tmp;
|
|
|
-
|
|
|
- /* Stop/disable the device. */
|
|
|
- tmp=readw(ETHER_RX_CTL(dev->base_addr));
|
|
|
- tmp&=~(ETHER_RX_CTL_RXEN_MSK | ETHER_RX_CTL_ENGOOD_MSK);
|
|
|
- tmp|=ETHER_RX_CTL_RXHALT_MSK;
|
|
|
- writew(tmp,ETHER_RX_CTL(dev->base_addr));
|
|
|
-
|
|
|
- tmp=readl(ETHER_TX_CTL(dev->base_addr));
|
|
|
- tmp&=~ETHER_TX_CTL_TXEN_MSK;
|
|
|
- tmp|=ETHER_TX_CTL_TXHALT_MSK;
|
|
|
- writel(tmp,ETHER_TX_CTL(dev->base_addr));
|
|
|
-
|
|
|
- /* Free up system resources */
|
|
|
- free_irq(dev->irq,dev);
|
|
|
- free_irq(2,dev);
|
|
|
- iounmap(priv->dma_data);
|
|
|
-
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-static void ether00_get_ethernet_address(struct net_device* dev)
|
|
|
-{
|
|
|
- struct mtd_info *mymtd=NULL;
|
|
|
- int i;
|
|
|
- size_t retlen;
|
|
|
-
|
|
|
- /*
|
|
|
- * For the Epxa10 dev board (camelot), the ethernet MAC
|
|
|
- * address is of the form 00:aa:aa:00:xx:xx where
|
|
|
- * 00:aa:aa is the Altera vendor ID and xx:xx is the
|
|
|
- * last 2 bytes of the board serial number, as programmed
|
|
|
- * into the OTP area of the flash device on EBI1. If this
|
|
|
- * isn't an expa10 dev board, or there's no mtd support to
|
|
|
- * read the serial number from flash then we'll force the
|
|
|
- * use to set their own mac address using ifconfig.
|
|
|
- */
|
|
|
-
|
|
|
-#ifdef CONFIG_ARCH_CAMELOT
|
|
|
-#ifdef CONFIG_MTD
|
|
|
- /* get the mtd_info structure for the first mtd device*/
|
|
|
- for(i=0;i<MAX_MTD_DEVICES;i++){
|
|
|
- mymtd=get_mtd_device(NULL,i);
|
|
|
- if(!mymtd||!strcmp(mymtd->name,"EPXA10DB flash"))
|
|
|
- break;
|
|
|
- }
|
|
|
-
|
|
|
- if(!mymtd || !mymtd->read_user_prot_reg){
|
|
|
- printk(KERN_WARNING "%s: Failed to read MAC address from flash\n",dev->name);
|
|
|
- }else{
|
|
|
- mymtd->read_user_prot_reg(mymtd,2,1,&retlen,&dev->dev_addr[5]);
|
|
|
- mymtd->read_user_prot_reg(mymtd,3,1,&retlen,&dev->dev_addr[4]);
|
|
|
- dev->dev_addr[3]=0;
|
|
|
- dev->dev_addr[2]=vendor_id[1];
|
|
|
- dev->dev_addr[1]=vendor_id[0];
|
|
|
- dev->dev_addr[0]=0;
|
|
|
- }
|
|
|
-#else
|
|
|
- printk(KERN_WARNING "%s: MTD support required to read MAC address from EPXA10 dev board\n", dev->name);
|
|
|
-#endif
|
|
|
-#endif
|
|
|
-
|
|
|
- if (!is_valid_ether_addr(dev->dev_addr))
|
|
|
- printk("%s: Invalid ethernet MAC address. Please set using "
|
|
|
- "ifconfig\n", dev->name);
|
|
|
-
|
|
|
-}
|
|
|
-
|
|
|
-/*
|
|
|
- * Keep a mapping of dev_info addresses -> port lines to use when
|
|
|
- * removing ports dev==NULL indicates unused entry
|
|
|
- */
|
|
|
-
|
|
|
-
|
|
|
-static struct net_device* dev_list[ETH_NR];
|
|
|
-
|
|
|
-static int ether00_add_device(struct pldhs_dev_info* dev_info,void* dev_ps_data)
|
|
|
-{
|
|
|
- struct net_device *dev;
|
|
|
- struct net_priv *priv;
|
|
|
- void *map_addr;
|
|
|
- int result;
|
|
|
- int i;
|
|
|
-
|
|
|
- i=0;
|
|
|
- while(dev_list[i] && i < ETH_NR)
|
|
|
- i++;
|
|
|
-
|
|
|
- if(i==ETH_NR){
|
|
|
- printk(KERN_WARNING "ether00: Maximum number of ports reached\n");
|
|
|
- return 0;
|
|
|
- }
|
|
|
-
|
|
|
-
|
|
|
- if (!request_mem_region(dev_info->base_addr, MAC_REG_SIZE, "ether00"))
|
|
|
- return -EBUSY;
|
|
|
-
|
|
|
- dev = alloc_etherdev(sizeof(struct net_priv));
|
|
|
- if(!dev) {
|
|
|
- result = -ENOMEM;
|
|
|
- goto out_release;
|
|
|
- }
|
|
|
- priv = dev->priv;
|
|
|
-
|
|
|
- priv->tq_memupdate.routine=ether00_mem_update;
|
|
|
- priv->tq_memupdate.data=(void*) dev;
|
|
|
-
|
|
|
- spin_lock_init(&priv->rx_lock);
|
|
|
-
|
|
|
- map_addr=ioremap_nocache(dev_info->base_addr,SZ_4K);
|
|
|
- if(!map_addr){
|
|
|
- result = -ENOMEM;
|
|
|
- out_kfree;
|
|
|
- }
|
|
|
-
|
|
|
- dev->open=ether00_open;
|
|
|
- dev->stop=ether00_stop;
|
|
|
- dev->set_multicast_list=ether00_set_multicast;
|
|
|
- dev->hard_start_xmit=ether00_tx;
|
|
|
- dev->get_stats=ether00_stats;
|
|
|
-
|
|
|
- ether00_get_ethernet_address(dev);
|
|
|
-
|
|
|
- SET_MODULE_OWNER(dev);
|
|
|
-
|
|
|
- dev->base_addr=(unsigned int)map_addr;
|
|
|
- dev->irq=dev_info->irq;
|
|
|
- dev->features=NETIF_F_DYNALLOC | NETIF_F_HW_CSUM;
|
|
|
-
|
|
|
- result=register_netdev(dev);
|
|
|
- if(result){
|
|
|
- printk("Ether00: Error %i registering driver\n",result);
|
|
|
- goto out_unmap;
|
|
|
- }
|
|
|
- printk("registered ether00 device at %#x\n",dev_info->base_addr);
|
|
|
-
|
|
|
- dev_list[i]=dev;
|
|
|
-
|
|
|
- return result;
|
|
|
-
|
|
|
- out_unmap:
|
|
|
- iounmap(map_addr);
|
|
|
- out_kfree:
|
|
|
- free_netdev(dev);
|
|
|
- out_release:
|
|
|
- release_mem_region(dev_info->base_addr, MAC_REG_SIZE);
|
|
|
- return result;
|
|
|
-}
|
|
|
-
|
|
|
-
|
|
|
-static int ether00_remove_devices(void)
|
|
|
-{
|
|
|
- int i;
|
|
|
-
|
|
|
- for(i=0;i<ETH_NR;i++){
|
|
|
- if(dev_list[i]){
|
|
|
- netif_device_detach(dev_list[i]);
|
|
|
- unregister_netdev(dev_list[i]);
|
|
|
- iounmap((void*)dev_list[i]->base_addr);
|
|
|
- release_mem_region(dev_list[i]->base_addr, MAC_REG_SIZE);
|
|
|
- free_netdev(dev_list[i]);
|
|
|
- dev_list[i]=0;
|
|
|
- }
|
|
|
- }
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-static struct pld_hotswap_ops ether00_pldhs_ops={
|
|
|
- .name = ETHER00_NAME,
|
|
|
- .add_device = ether00_add_device,
|
|
|
- .remove_devices = ether00_remove_devices,
|
|
|
-};
|
|
|
-
|
|
|
-
|
|
|
-static void __exit ether00_cleanup_module(void)
|
|
|
-{
|
|
|
- int result;
|
|
|
- result=ether00_remove_devices();
|
|
|
- if(result)
|
|
|
- printk(KERN_WARNING "ether00: failed to remove all devices\n");
|
|
|
-
|
|
|
- pldhs_unregister_driver(ETHER00_NAME);
|
|
|
-}
|
|
|
-module_exit(ether00_cleanup_module);
|
|
|
-
|
|
|
-
|
|
|
-static int __init ether00_mod_init(void)
|
|
|
-{
|
|
|
- printk("mod init\n");
|
|
|
- return pldhs_register_driver(ðer00_pldhs_ops);
|
|
|
-
|
|
|
-}
|
|
|
-
|
|
|
-module_init(ether00_mod_init);
|
|
|
-
|