/*
- * ar2313.c: Linux driver for the Atheros AR231z Ethernet device.
+ * ar2313.c: Linux driver for the Atheros AR231x Ethernet device.
*
* Copyright (C) 2004 by Sameer Dekate <sdekate@arubanetworks.com>
* Copyright (C) 2006 Imre Kaloz <kaloz@openwrt.org>
- * Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
+ * Copyright (C) 2006-2007 Felix Fietkau <nbd@openwrt.org>
*
* Thanks to Atheros for providing hardware and documentation
* enabling me to write this driver.
#include <asm/uaccess.h>
#include <asm/bootinfo.h>
-#include <ar531x_platform.h>
+#define AR2313_MTU 1692
+#define AR2313_PRIOS 1
+#define AR2313_QUEUES (2*AR2313_PRIOS)
+#define AR2313_DESCR_ENTRIES 64
#undef INDEX_DEBUG
#define DEBUG 0
#define SMP_CACHE_BYTES L1_CACHE_BYTES
#endif
-#ifndef SET_MODULE_OWNER
-#define SET_MODULE_OWNER(dev) {do{} while(0);}
-#define AR2313_MOD_INC_USE_COUNT MOD_INC_USE_COUNT
-#define AR2313_MOD_DEC_USE_COUNT MOD_DEC_USE_COUNT
-#else
-#define AR2313_MOD_INC_USE_COUNT {do{} while(0);}
-#define AR2313_MOD_DEC_USE_COUNT {do{} while(0);}
-#endif
-
-#define PHYSADDR(a) ((_ACAST32_ (a)) & 0x1fffffff)
-
-static char ifname[5] = "bond";
-
-module_param_string(ifname, ifname, 5, 0);
-
#define AR2313_MBOX_SET_BIT 0x8
#define BOARD_IDX_STATIC 0
#define BOARD_IDX_OVERFLOW -1
-#include "ar2313_msg.h"
#include "platform.h"
#include "dma.h"
#include "ar2313.h"
MODULE_DESCRIPTION("AR2313 Ethernet driver");
#endif
-#if DEBUG
-static char version[] __initdata =
- "ar2313.c: v0.03 2006/07/12 sdekate@arubanetworks.com\n";
-#endif /* DEBUG */
-
#define virt_to_phys(x) ((u32)(x) & 0x1fffffff)
// prototypes
-static short armiiread(short phy, short reg);
-static void armiiwrite(short phy, short reg, short data);
+static short armiiread(struct net_device *dev, short phy, short reg);
+static void armiiwrite(struct net_device *dev, short phy, short reg, short data);
#ifdef TX_TIMEOUT
static void ar2313_tx_timeout(struct net_device *dev);
#endif
static void rx_tasklet_func(unsigned long data);
static void ar2313_multicast_list(struct net_device *dev);
-static int probed __initdata = 0;
-static unsigned long ar_eth_base;
-static unsigned long ar_dma_base;
-static unsigned long ar_int_base;
-static unsigned long ar_int_mac_mask;
-static unsigned long ar_int_phy_mask;
-
#ifndef ERR
#define ERR(fmt, args...) printk("%s: " fmt, __func__, ##args)
#endif
{
struct net_device *dev;
struct ar2313_private *sp;
- struct ar531x_eth *cfg;
struct resource *res;
- int version_disp;
- char name[64] ;
+ unsigned long ar_eth_base;
+ char buf[64] ;
- if (probed)
- return -ENODEV;
- probed++;
-
- version_disp = 0;
- sprintf(name, "%s%%d", ifname) ;
dev = alloc_etherdev(sizeof(struct ar2313_private));
if (dev == NULL) {
sp = dev->priv;
sp->dev = dev;
- cfg = pdev->dev.platform_data;
+ sp->cfg = pdev->dev.platform_data;
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "eth_membase");
+ sprintf(buf, "eth%d_membase", pdev->id);
+ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, buf);
if (!res)
return -ENODEV;
sp->link = 0;
ar_eth_base = res->start;
- ar_dma_base = ar_eth_base + 0x1000;
- ar_int_base = cfg->reset_base;
- ar_int_mac_mask = cfg->reset_mac;
- ar_int_phy_mask = cfg->reset_phy;
- sp->phy = cfg->phy;
+ sp->phy = sp->cfg->phy;
- dev->irq = platform_get_irq_byname(pdev, "eth_irq");
+ sprintf(buf, "eth%d_irq", pdev->id);
+ dev->irq = platform_get_irq_byname(pdev, buf);
spin_lock_init(&sp->lock);
tasklet_init(&sp->rx_tasklet, rx_tasklet_func, (unsigned long) dev);
tasklet_disable(&sp->rx_tasklet);
- /* display version info if adapter is found */
- if (!version_disp) {
- /* set display flag to TRUE so that */
- /* we only display this string ONCE */
- version_disp = 1;
-#if DEBUG
- printk(version);
-#endif /* DEBUG */
- }
-
-#if 0
- request_region(PHYSADDR(ar_eth_base), ETHERNET_SIZE*ETHERNET_MACS,
- "AR2313ENET");
-#endif
-
- sp->eth_regs = ioremap_nocache(PHYSADDR(ar_eth_base), sizeof(*sp->eth_regs));
+ sp->eth_regs = ioremap_nocache(virt_to_phys(ar_eth_base), sizeof(*sp->eth_regs));
if (!sp->eth_regs) {
printk("Can't remap eth registers\n");
return(-ENXIO);
}
- sp->dma_regs = ioremap_nocache(PHYSADDR(ar_eth_base + 0x1000), sizeof(*sp->dma_regs));
+ /*
+ * When there's only one MAC, PHY regs are typically on ENET0,
+ * even though the MAC might be on ENET1.
+ * Needto remap PHY regs separately in this case
+ */
+ if (virt_to_phys(ar_eth_base) == virt_to_phys(sp->phy_regs))
+ sp->phy_regs = sp->eth_regs;
+ else {
+ sp->phy_regs = ioremap_nocache(virt_to_phys(sp->cfg->phy_base), sizeof(*sp->phy_regs));
+ if (!sp->phy_regs) {
+ printk("Can't remap phy registers\n");
+ return(-ENXIO);
+ }
+ }
+
+ sp->dma_regs = ioremap_nocache(virt_to_phys(ar_eth_base + 0x1000), sizeof(*sp->dma_regs));
dev->base_addr = (unsigned int) sp->dma_regs;
if (!sp->dma_regs) {
printk("Can't remap DMA registers\n");
return(-ENXIO);
}
- sp->int_regs = ioremap_nocache(PHYSADDR(ar_int_base), 4);
+ sp->int_regs = ioremap_nocache(virt_to_phys(sp->cfg->reset_base), 4);
if (!sp->int_regs) {
printk("Can't remap INTERRUPT registers\n");
return(-ENXIO);
}
- strncpy(sp->name, "Atheros AR2313", sizeof (sp->name) - 1);
+ strncpy(sp->name, "Atheros AR231x", sizeof (sp->name) - 1);
sp->name [sizeof (sp->name) - 1] = '\0';
-
- {
- /* XXX: Will have to rewrite this part later */
- char *configstart;
- unsigned char def_mac[6] = {0, 0xaa, 0xbb, 0xcc, 0xdd, 0xee};
-
- configstart = (char *) cfg->board_config;
-
- if (!configstart) {
- printk("no valid mac found, using defaults");
- memcpy(dev->dev_addr, def_mac, 6);
- } else {
- memcpy(dev->dev_addr, ((u8 *)configstart)+102, 6);
- /* use the other MAC slot if the first one is empty */
- if (!memcmp(dev->dev_addr, "\xff\xff\xff\xff\xff\xff", 6))
- memcpy(dev->dev_addr, ((u8 *)configstart)+102 + 6, 6);
- }
- }
-
+ memcpy(dev->dev_addr, sp->cfg->macaddr, 6);
sp->board_idx = BOARD_IDX_STATIC;
if (ar2313_init(dev)) {
td->status = 0;
td->devcs = DMA_TX1_CHAINED;
td->addr = 0;
- td->descr = K1_TO_PHYS(&sp->tx_ring[(j+1) & (AR2313_DESCR_ENTRIES-1)]);
+ td->descr = virt_to_phys(&sp->tx_ring[(j+1) & (AR2313_DESCR_ENTRIES-1)]);
}
return 0;
struct ar2313_private *sp = dev->priv;
u16 phyData;
- phyData = armiiread(sp->phy, MII_BMSR);
+ phyData = armiiread(dev, sp->phy, MII_BMSR);
if (sp->phyData != phyData) {
if (phyData & BMSR_LSTATUS) {
/* link is present, ready link partner ability to deterine duplexity */
u16 reg;
sp->link = 1;
- reg = armiiread(sp->phy, MII_BMCR);
+ reg = armiiread(dev, sp->phy, MII_BMCR);
if (reg & BMCR_ANENABLE) {
/* auto neg enabled */
- reg = armiiread(sp->phy, MII_LPA);
+ reg = armiiread(dev, sp->phy, MII_LPA);
duplex = (reg & (LPA_100FULL|LPA_10FULL))? 1:0;
} else {
/* no auto neg, just read duplex config */
unsigned int ethsal, ethsah;
unsigned int flags;
- *sp->int_regs |= ar_int_mac_mask;
+ *sp->int_regs |= sp->cfg->reset_mac;
mdelay(10);
- *sp->int_regs &= ~ar_int_mac_mask;
+ *sp->int_regs &= ~sp->cfg->reset_mac;
mdelay(10);
- *sp->int_regs |= ar_int_phy_mask;
+ *sp->int_regs |= sp->cfg->reset_phy;
mdelay(10);
- *sp->int_regs &= ~ar_int_phy_mask;
+ *sp->int_regs &= ~sp->cfg->reset_phy;
mdelay(10);
sp->dma_regs->bus_mode = (DMA_BUS_MODE_SWR);
DMA_STATUS_RI |
DMA_STATUS_TI |
DMA_STATUS_FBE);
- sp->dma_regs->xmt_base = K1_TO_PHYS(sp->tx_ring);
- sp->dma_regs->rcv_base = K1_TO_PHYS(sp->rx_ring);
+ sp->dma_regs->xmt_base = virt_to_phys(sp->tx_ring);
+ sp->dma_regs->rcv_base = virt_to_phys(sp->rx_ring);
sp->dma_regs->control = (DMA_CONTROL_SR | DMA_CONTROL_ST | DMA_CONTROL_SF);
sp->eth_regs->flow_control = (FLOW_CONTROL_FCE);
skb_new = dev_alloc_skb(AR2313_BUFSIZE + RX_OFFSET + 128);
if (skb_new != NULL) {
- skb = sp->rx_skb[idx];
+ skb = sp->rx_skb[idx];
/* set skb */
- skb_put(skb, ((status >> DMA_RX_LEN_SHIFT) & 0x3fff) - CRC_LEN);
+ skb_put(skb, ((status >> DMA_RX_LEN_SHIFT) & 0x3fff) - CRC_LEN);
+
+ sp->stats.rx_bytes += skb->len;
+ skb->protocol = eth_type_trans(skb, dev);
+ /* pass the packet to upper layers */
+ netif_rx(skb);
-#ifdef CONFIG_MERLOT
- if ((dev->am_pkt_handler == NULL) ||
- (dev->am_pkt_handler(skb, dev) == 0)) {
-#endif
- sp->stats.rx_bytes += skb->len;
- skb->protocol = eth_type_trans(skb, dev);
- /* pass the packet to upper layers */
-
-#ifdef CONFIG_MERLOT
- if (dev->asap_netif_rx)
- dev->asap_netif_rx(skb);
- else
-#endif
- netif_rx(skb);
-#ifdef CONFIG_MERLOT
- }
-#endif
skb_new->dev = dev;
/* 16 bit align */
skb_reserve(skb_new, RX_OFFSET+32);
sp->stats.rx_packets++;
sp->rx_skb[idx] = skb_new;
-
} else {
- sp->stats.rx_dropped++;
+ sp->stats.rx_dropped++;
}
}
sp->eth_regs->mac_control |= MAC_CONTROL_RE;
- AR2313_MOD_INC_USE_COUNT;
-
return 0;
}
sp->dma_regs->bus_mode = DMA_BUS_MODE_SWR;
/* place phy and MAC in reset */
- *sp->int_regs |= (ar_int_mac_mask | ar_int_phy_mask);
+ *sp->int_regs |= (sp->cfg->reset_mac | sp->cfg->reset_phy);
/* free buffers on tx ring */
for (j = 0; j < AR2313_DESCR_ENTRIES; j++) {
free_irq(dev->irq, dev);
#endif
- AR2313_MOD_DEC_USE_COUNT;
return 0;
}
idx = DSC_NEXT(idx);
sp->tx_prd = idx;
- //dev->trans_start = jiffies;
-
return 0;
}
ecmd->phy_address = 1;
ecmd->advertising = ADVERTISED_MII;
- tmp = armiiread(np->phy, MII_ADVERTISE);
+ tmp = armiiread(dev, np->phy, MII_ADVERTISE);
if (tmp & ADVERTISE_10HALF)
ecmd->advertising |= ADVERTISED_10baseT_Half;
if (tmp & ADVERTISE_10FULL)
if (tmp & ADVERTISE_100FULL)
ecmd->advertising |= ADVERTISED_100baseT_Full;
- tmp = armiiread(np->phy, MII_BMCR);
+ tmp = armiiread(dev, np->phy, MII_BMCR);
if (tmp & BMCR_ANENABLE) {
ecmd->advertising |= ADVERTISED_Autoneg;
ecmd->autoneg = AUTONEG_ENABLE;
}
if (ecmd->autoneg == AUTONEG_ENABLE) {
- tmp = armiiread(np->phy, MII_LPA);
+ tmp = armiiread(dev, np->phy, MII_LPA);
if (tmp & (LPA_100FULL|LPA_10FULL)) {
ecmd->duplex = DUPLEX_FULL;
} else {
/* WHEW! now lets bang some bits */
- tmp = armiiread(np->phy, MII_BMCR);
+ tmp = armiiread(dev, np->phy, MII_BMCR);
if (ecmd->autoneg == AUTONEG_ENABLE) {
/* turn on autonegotiation */
tmp |= BMCR_ANENABLE;
(ecmd->speed == SPEED_100)? 100:10,
(ecmd->duplex == DUPLEX_FULL)? "full":"half");
}
- armiiwrite(np->phy, MII_BMCR, tmp);
+ armiiwrite(dev, np->phy, MII_BMCR, tmp);
np->phyData = 0;
return 0;
}
int tmp;
int r = -EINVAL;
/* if autoneg is off, it's an error */
- tmp = armiiread(np->phy, MII_BMCR);
+ tmp = armiiread(dev, np->phy, MII_BMCR);
if (tmp & BMCR_ANENABLE) {
tmp |= (BMCR_ANRESTART);
- armiiwrite(np->phy, MII_BMCR, tmp);
+ armiiwrite(dev, np->phy, MII_BMCR, tmp);
r = 0;
}
return r;
/* get link status */
case ETHTOOL_GLINK: {
struct ethtool_value edata = {ETHTOOL_GLINK};
- edata.data = (armiiread(np->phy, MII_BMSR)&BMSR_LSTATUS) ? 1:0;
+ edata.data = (armiiread(dev, np->phy, MII_BMSR)&BMSR_LSTATUS) ? 1:0;
if (copy_to_user(useraddr, &edata, sizeof(edata)))
return -EFAULT;
return 0;
struct mii_ioctl_data *data = (struct mii_ioctl_data *)&ifr->ifr_data;
switch (cmd) {
- case SIOCDEVPRIVATE: {
- struct ar2313_cmd scmd;
-
- if (copy_from_user(&scmd, ifr->ifr_data, sizeof(scmd)))
- return -EFAULT;
-
-#if DEBUG
- printk("%s: ioctl devprivate c=%d a=%x l=%d m=%d d=%x,%x\n",
- dev->name, scmd.cmd,
- scmd.address, scmd.length,
- scmd.mailbox, scmd.data[0], scmd.data[1]);
-#endif /* DEBUG */
-
- switch (scmd.cmd) {
- case AR2313_READ_DATA:
- if(scmd.length==4){
- scmd.data[0] = *((u32*)scmd.address);
- } else if(scmd.length==2) {
- scmd.data[0] = *((u16*)scmd.address);
- } else if (scmd.length==1) {
- scmd.data[0] = *((u8*)scmd.address);
- } else {
- return -EOPNOTSUPP;
- }
- if(copy_to_user(ifr->ifr_data, &scmd, sizeof(scmd)))
- return -EFAULT;
- break;
-
- case AR2313_WRITE_DATA:
- if(scmd.length==4){
- *((u32*)scmd.address) = scmd.data[0];
- } else if(scmd.length==2) {
- *((u16*)scmd.address) = scmd.data[0];
- } else if (scmd.length==1) {
- *((u8*)scmd.address) = scmd.data[0];
- } else {
- return -EOPNOTSUPP;
- }
- break;
-
- case AR2313_GET_VERSION:
- // SAMEER: sprintf((char*) &scmd, "%s", ARUBA_VERSION);
- if(copy_to_user(ifr->ifr_data, &scmd, sizeof(scmd)))
- return -EFAULT;
- break;
-
- default:
- return -EOPNOTSUPP;
- }
- return 0;
- }
case SIOCETHTOOL:
return netdev_ethtool_ioctl(dev, (void *) ifr->ifr_data);
/* Fall Through */
case SIOCGMIIREG: /* Read MII PHY register. */
- case SIOCDEVPRIVATE+1: /* for binary compat, remove in 2.5 */
- data->val_out = armiiread(data->phy_id & 0x1f,
+ data->val_out = armiiread(dev, data->phy_id & 0x1f,
data->reg_num & 0x1f);
return 0;
case SIOCSMIIREG: /* Write MII PHY register. */
- case SIOCDEVPRIVATE+2: /* for binary compat, remove in 2.5 */
if (!capable(CAP_NET_ADMIN))
return -EPERM;
- armiiwrite(data->phy_id & 0x1f,
+ armiiwrite(dev, data->phy_id & 0x1f,
data->reg_num & 0x1f, data->val_in);
return 0;
return &sp->stats;
}
+
+#define MII_ADDR(phy, reg) \
+ ((reg << MII_ADDR_REG_SHIFT) | (phy << MII_ADDR_PHY_SHIFT))
+
static short
-armiiread(short phy, short reg)
+armiiread(struct net_device *dev, short phy, short reg)
{
- volatile ETHERNET_STRUCT * ethernet;
+ struct ar2313_private *sp = (struct ar2313_private *)dev->priv;
+ volatile ETHERNET_STRUCT *ethernet = sp->phy_regs;
- ethernet = (volatile ETHERNET_STRUCT *)(ar_eth_base); /* always MAC 0 */
- ethernet->mii_addr = ((reg << MII_ADDR_REG_SHIFT) |
- (phy << MII_ADDR_PHY_SHIFT));
- while (ethernet->mii_addr & MII_ADDR_BUSY);
- return (ethernet->mii_data >> MII_DATA_SHIFT);
+ ethernet->mii_addr = MII_ADDR(phy, reg);
+ while (ethernet->mii_addr & MII_ADDR_BUSY);
+ return (ethernet->mii_data >> MII_DATA_SHIFT);
}
static void
-armiiwrite(short phy, short reg, short data)
+armiiwrite(struct net_device *dev, short phy, short reg, short data)
{
- volatile ETHERNET_STRUCT * ethernet;
-
- ethernet = (volatile ETHERNET_STRUCT *)(ar_eth_base); /* always MAC 0 */
- while (ethernet->mii_addr & MII_ADDR_BUSY);
- ethernet->mii_data = data << MII_DATA_SHIFT;
- ethernet->mii_addr = ((reg << MII_ADDR_REG_SHIFT) |
- (phy << MII_ADDR_PHY_SHIFT) |
- MII_ADDR_WRITE);
+ struct ar2313_private *sp = (struct ar2313_private *)dev->priv;
+ volatile ETHERNET_STRUCT *ethernet = sp->phy_regs;
+
+ while (ethernet->mii_addr & MII_ADDR_BUSY);
+ ethernet->mii_data = data << MII_DATA_SHIFT;
+ ethernet->mii_addr = MII_ADDR(phy, reg) | MII_ADDR_WRITE;
}
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