diff options
Diffstat (limited to 'drivers/net/arm/ether00.c')
| -rw-r--r-- | drivers/net/arm/ether00.c | 1017 |
1 files changed, 0 insertions, 1017 deletions
diff --git a/drivers/net/arm/ether00.c b/drivers/net/arm/ether00.c deleted file mode 100644 index 4f1f4e31bda..00000000000 --- a/drivers/net/arm/ether00.c +++ /dev/null @@ -1,1017 +0,0 @@ -/* - * drivers/net/ether00.c - * - * Copyright (C) 2001 Altera Corporation - * - * 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 - */ - -/* includes */ -#include <linux/config.h> -#include <linux/pci.h> -#include <linux/sched.h> -#include <linux/netdevice.h> -#include <linux/skbuff.h> -#include <linux/etherdevice.h> -#include <linux/module.h> -#include <linux/tqueue.h> -#include <linux/mtd/mtd.h> -#include <linux/pld/pld_hotswap.h> -#include <asm/arch/excalibur.h> -#include <asm/arch/hardware.h> -#include <asm/irq.h> -#include <asm/io.h> -#include <asm/sizes.h> - -#include <asm/arch/ether00.h> -#include <asm/arch/tdkphy.h> - - -MODULE_AUTHOR("Clive Davies"); -MODULE_DESCRIPTION("Altera Ether00 IP core driver"); -MODULE_LICENSE("GPL"); - -#define PKT_BUF_SZ 1540 /* Size of each rx buffer */ -#define ETH_NR 4 /* Number of MACs this driver supports */ - -#define DEBUG(x) - -#define __dma_va(x) (unsigned int)((unsigned int)priv->dma_data+(((unsigned int)(x))&(EXC_SPSRAM_BLOCK0_SIZE-1))) -#define __dma_pa(x) (unsigned int)(EXC_SPSRAM_BLOCK0_BASE+(((unsigned int)(x))-(unsigned int)priv->dma_data)) - -#define ETHER00_BASE 0 -#define ETHER00_TYPE -#define ETHER00_NAME "ether00" -#define MAC_REG_SIZE 0x400 /* size of MAC register area */ - - - -/* typedefs */ - -/* The definition of the driver control structure */ - -#define RX_NUM_BUFF 10 -#define RX_NUM_FDESC 10 -#define TX_NUM_FDESC 10 - -struct tx_fda_ent{ - FDA_DESC fd; - BUF_DESC bd; - BUF_DESC pad; -}; -struct rx_fda_ent{ - FDA_DESC fd; - BUF_DESC bd; - BUF_DESC pad; -}; -struct rx_blist_ent{ - FDA_DESC fd; - BUF_DESC bd; - BUF_DESC pad; -}; -struct net_priv -{ - struct net_device_stats stats; - struct sk_buff* skb; - void* dma_data; - struct rx_blist_ent* rx_blist_vp; - struct rx_fda_ent* rx_fda_ptr; - struct tx_fda_ent* tx_fdalist_vp; - struct tq_struct tq_memupdate; - unsigned char memupdate_scheduled; - unsigned char rx_disabled; - unsigned char queue_stopped; - spinlock_t rx_lock; -}; - -static const char vendor_id[2]={0x07,0xed}; - -#ifdef ETHER00_DEBUG - -/* Dump (most) registers for debugging puposes */ - -static void dump_regs(struct net_device *dev){ - struct net_priv* priv=dev->priv; - unsigned int* i; - - printk("\n RX free descriptor area:\n"); - - for(i=(unsigned int*)priv->rx_fda_ptr; - i<((unsigned int*)(priv->rx_fda_ptr+RX_NUM_FDESC));){ - printk("%#8x %#8x %#8x %#8x\n",*i,*(i+1),*(i+2),*(i+3)); - i+=4; - } - - printk("\n RX buffer list:\n"); - - for(i=(unsigned int*)priv->rx_blist_vp; - i<((unsigned int*)(priv->rx_blist_vp+RX_NUM_BUFF));){ - printk("%#8x %#8x %#8x %#8x\n",*i,*(i+1),*(i+2),*(i+3)); - i+=4; - } - - printk("\n TX frame descriptor list:\n"); - - for(i=(unsigned int*)priv->tx_fdalist_vp; - i<((unsigned int*)(priv->tx_fdalist_vp+TX_NUM_FDESC));){ - printk("%#8x %#8x %#8x %#8x\n",*i,*(i+1),*(i+2),*(i+3)); - i+=4; - } - - printk("\ndma ctl=%#x\n",readw(ETHER_DMA_CTL(dev->base_addr))); - printk("txfrmptr=%#x\n",readw(ETHER_TXFRMPTR(dev->base_addr))); - printk("txthrsh=%#x\n",readw(ETHER_TXTHRSH(dev->base_addr))); - printk("txpollctr=%#x\n",readw(ETHER_TXPOLLCTR(dev->base_addr))); - printk("blfrmptr=%#x\n",readw(ETHER_BLFRMPTR(dev->base_addr))); - printk("rxfragsize=%#x\n",readw(ETHER_RXFRAGSIZE(dev->base_addr))); - printk("tx_int_en=%#x\n",readw(ETHER_INT_EN(dev->base_addr))); - printk("fda_bas=%#x\n",readw(ETHER_FDA_BAS(dev->base_addr))); - printk("fda_lim=%#x\n",readw(ETHER_FDA_LIM(dev->base_addr))); - printk("int_src=%#x\n",readw(ETHER_INT_SRC(dev->base_addr))); - printk("pausecnt=%#x\n",readw(ETHER_PAUSECNT(dev->base_addr))); - printk("rempaucnt=%#x\n",readw(ETHER_REMPAUCNT(dev->base_addr))); - printk("txconfrmstat=%#x\n",readw(ETHER_TXCONFRMSTAT(dev->base_addr))); - printk("mac_ctl=%#x\n",readw(ETHER_MAC_CTL(dev->base_addr))); - printk("arc_ctl=%#x\n",readw(ETHER_ARC_CTL(dev->base_addr))); - printk("tx_ctl=%#x\n",readw(ETHER_TX_CTL(dev->base_addr))); -} -#endif /* ETHER00_DEBUG */ - - -static int ether00_write_phy(struct net_device *dev, short address, short value) -{ - volatile int count = 1024; - writew(value,ETHER_MD_DATA(dev->base_addr)); - writew( ETHER_MD_CA_BUSY_MSK | - ETHER_MD_CA_WR_MSK | - (address & ETHER_MD_CA_ADDR_MSK), - ETHER_MD_CA(dev->base_addr)); - - /* Wait for the command to complete */ - while((readw(ETHER_MD_CA(dev->base_addr)) & ETHER_MD_CA_BUSY_MSK)&&count){ - count--; - } - if (!count){ - printk("Write to phy failed, addr=%#x, data=%#x\n",address, value); - return -EIO; - } - return 0; -} - -static int ether00_read_phy(struct net_device *dev, short address) -{ - volatile int count = 1024; - writew( ETHER_MD_CA_BUSY_MSK | - (address & ETHER_MD_CA_ADDR_MSK), - ETHER_MD_CA(dev->base_addr)); - - /* Wait for the command to complete */ - while((readw(ETHER_MD_CA(dev->base_addr)) & ETHER_MD_CA_BUSY_MSK)&&count){ - count--; - } - if (!count){ - printk(KERN_WARNING "Read from phy timed out\n"); - return -EIO; - } - return readw(ETHER_MD_DATA(dev->base_addr)); -} - -static void ether00_phy_int(int irq_num, void* dev_id, struct pt_regs* regs) -{ - struct net_device* dev=dev_id; - int irq_status; - - irq_status=ether00_read_phy(dev, PHY_IRQ_CONTROL); - - if(irq_status & PHY_IRQ_CONTROL_ANEG_COMP_INT_MSK){ - /* - * Autonegotiation complete on epxa10db. The mac doesn't - * twig if we're in full duplex so we need to check the - * phy status register and configure the mac accordingly - */ - if(ether00_read_phy(dev, PHY_STATUS)&(PHY_STATUS_10T_F_MSK|PHY_STATUS_100_X_F_MSK)){ - int tmp; - tmp=readl(ETHER_MAC_CTL(dev->base_addr)); - writel(tmp|ETHER_MAC_CTL_FULLDUP_MSK,ETHER_MAC_CTL(dev->base_addr)); - } - } - - if(irq_status&PHY_IRQ_CONTROL_LS_CHG_INT_MSK){ - - if(ether00_read_phy(dev, PHY_STATUS)& PHY_STATUS_LINK_MSK){ - /* Link is up */ - netif_carrier_on(dev); - //printk("Carrier on\n"); - }else{ - netif_carrier_off(dev); - //printk("Carrier off\n"); - - } - } - -} - -static void setup_blist_entry(struct sk_buff* skb,struct rx_blist_ent* blist_ent_ptr){ - /* Make the buffer consistent with the cache as the mac is going to write - * directly into it*/ - blist_ent_ptr->fd.FDSystem=(unsigned int)skb; - blist_ent_ptr->bd.BuffData=(char*)__pa(skb->data); - consistent_sync(skb->data,PKT_BUF_SZ,PCI_DMA_FROMDEVICE); - /* align IP on 16 Byte (DMA_CTL set to skip 2 bytes) */ - skb_reserve(skb,2); - blist_ent_ptr->bd.BuffLength=PKT_BUF_SZ-2; - blist_ent_ptr->fd.FDLength=1; - blist_ent_ptr->fd.FDCtl=FDCTL_COWNSFD_MSK; - blist_ent_ptr->bd.BDCtl=BDCTL_COWNSBD_MSK; -} - - -static int ether00_mem_init(struct net_device* dev) -{ - struct net_priv* priv=dev->priv; - struct tx_fda_ent *tx_fd_ptr,*tx_end_ptr; - struct rx_blist_ent* blist_ent_ptr; - int i; - - /* - * Grab a block of on chip SRAM to contain the control stuctures for - * the ethernet MAC. This uncached becuase it needs to be accesses by both - * bus masters (cpu + mac). However, it shouldn't matter too much in terms - * of speed as its on chip memory - */ - priv->dma_data=ioremap_nocache(EXC_SPSRAM_BLOCK0_BASE,EXC_SPSRAM_BLOCK0_SIZE ); - if (!priv->dma_data) - return -ENOMEM; - - priv->rx_fda_ptr=(struct rx_fda_ent*)priv->dma_data; - /* - * Now share it out amongst the Frame descriptors and the buffer list - */ - priv->rx_blist_vp=(struct rx_blist_ent*)((unsigned int)priv->dma_data+RX_NUM_FDESC*sizeof(struct rx_fda_ent)); - - /* - *Initalise the FDA list - */ - /* set ownership to the controller */ - memset(priv->rx_fda_ptr,0x80,RX_NUM_FDESC*sizeof(struct rx_fda_ent)); - - /* - *Initialise the buffer list - */ - blist_ent_ptr=priv->rx_blist_vp; - i=0; - while(blist_ent_ptr<(priv->rx_blist_vp+RX_NUM_BUFF)){ - struct sk_buff *skb; - blist_ent_ptr->fd.FDLength=1; - skb=dev_alloc_skb(PKT_BUF_SZ); - if(skb){ - setup_blist_entry(skb,blist_ent_ptr); - blist_ent_ptr->fd.FDNext=(FDA_DESC*)__dma_pa(blist_ent_ptr+1); - blist_ent_ptr->bd.BDStat=i++; - blist_ent_ptr++; - } - else - { - printk("Failed to initalise buffer list\n"); - } - - } - blist_ent_ptr--; - blist_ent_ptr->fd.FDNext=(FDA_DESC*)__dma_pa(priv->rx_blist_vp); - - priv->tx_fdalist_vp=(struct tx_fda_ent*)(priv->rx_blist_vp+RX_NUM_BUFF); - - /* Initialise the buffers to be a circular list. The mac will then go poll - * the list until it finds a frame ready to transmit */ - tx_end_ptr=priv->tx_fdalist_vp+TX_NUM_FDESC; - for(tx_fd_ptr=priv->tx_fdalist_vp;tx_fd_ptr<tx_end_ptr;tx_fd_ptr++){ - tx_fd_ptr->fd.FDNext=(FDA_DESC*)__dma_pa((tx_fd_ptr+1)); - tx_fd_ptr->fd.FDCtl=1; - tx_fd_ptr->fd.FDStat=0; - tx_fd_ptr->fd.FDLength=1; - - } - /* Change the last FDNext pointer to make a circular list */ - tx_fd_ptr--; - tx_fd_ptr->fd.FDNext=(FDA_DESC*)__dma_pa(priv->tx_fdalist_vp); - - /* Point the device at the chain of Rx and Tx Buffers */ - writel((unsigned int)__dma_pa(priv->rx_fda_ptr),ETHER_FDA_BAS(dev->base_addr)); - writel((RX_NUM_FDESC-1)*sizeof(struct rx_fda_ent),ETHER_FDA_LIM(dev->base_addr)); - writel((unsigned int)__dma_pa(priv->rx_blist_vp),ETHER_BLFRMPTR(dev->base_addr)); - - writel((unsigned int)__dma_pa(priv->tx_fdalist_vp),ETHER_TXFRMPTR(dev->base_addr)); - - return 0; -} - - -void ether00_mem_update(void* dev_id) -{ - struct net_device* dev=dev_id; - struct net_priv* priv=dev->priv; - struct sk_buff* skb; - struct tx_fda_ent *fda_ptr=priv->tx_fdalist_vp; - struct rx_blist_ent* blist_ent_ptr; - unsigned long flags; - - priv->tq_memupdate.sync=0; - //priv->tq_memupdate.list= - priv->memupdate_scheduled=0; - - /* Transmit interrupt */ - while(fda_ptr<(priv->tx_fdalist_vp+TX_NUM_FDESC)){ - if(!(FDCTL_COWNSFD_MSK&fda_ptr->fd.FDCtl) && (ETHER_TX_STAT_COMP_MSK&fda_ptr->fd.FDStat)){ - priv->stats.tx_packets++; - priv->stats.tx_bytes+=fda_ptr->bd.BuffLength; - skb=(struct sk_buff*)fda_ptr->fd.FDSystem; - //printk("%d:txcln:fda=%#x skb=%#x\n",jiffies,fda_ptr,skb); - dev_kfree_skb(skb); - fda_ptr->fd.FDSystem=0; - fda_ptr->fd.FDStat=0; - fda_ptr->fd.FDCtl=0; - } - fda_ptr++; - } - /* Fill in any missing buffers from the received queue */ - spin_lock_irqsave(&priv->rx_lock,flags); - blist_ent_ptr=priv->rx_blist_vp; - while(blist_ent_ptr<(priv->rx_blist_vp+RX_NUM_BUFF)){ - /* fd.FDSystem of 0 indicates we failed to allocate the buffer in the ISR */ - if(!blist_ent_ptr->fd.FDSystem){ - struct sk_buff *skb; - 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); - |