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Diffstat (limited to 'target/linux/adm8668/files/arch/mips/adm8668/net_core.c')
-rw-r--r--target/linux/adm8668/files/arch/mips/adm8668/net_core.c618
1 files changed, 0 insertions, 618 deletions
diff --git a/target/linux/adm8668/files/arch/mips/adm8668/net_core.c b/target/linux/adm8668/files/arch/mips/adm8668/net_core.c
deleted file mode 100644
index 3348c224b..000000000
--- a/target/linux/adm8668/files/arch/mips/adm8668/net_core.c
+++ /dev/null
@@ -1,618 +0,0 @@
-/*
- * originally drivers/net/tulip_core.c
- * Copyright 2000,2001 The Linux Kernel Team
- * Written/copyright 1994-2001 by Donald Becker.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#define DRV_NAME "tulip"
-#define DRV_VERSION "1.1.15-NAPI" /* Keep at least for test */
-#define DRV_RELDATE "Feb 27, 2007"
-
-#include "net.h"
-
-static char version[] __devinitdata =
- "ADM8668net driver version " DRV_VERSION " (" DRV_RELDATE ")\n";
-
-#define MAX_UNITS 2
-
-/*
- Set the bus performance register.
- Typical: Set 16 longword cache alignment, no burst limit.
- Cache alignment bits 15:14 Burst length 13:8
- 0000 No alignment 0x00000000 unlimited 0800 8 longwords
- 4000 8 longwords 0100 1 longword 1000 16 longwords
- 8000 16 longwords 0200 2 longwords 2000 32 longwords
- C000 32 longwords 0400 4 longwords
- Warning: many older 486 systems are broken and require setting 0x00A04800
- 8 longword cache alignment, 8 longword burst.
- ToDo: Non-Intel setting could be better.
-*/
-
-//static int csr0 = 0x00200000 | 0x4000;
-static int csr0 = 0;
-
-/* Operational parameters that usually are not changed. */
-/* Time in jiffies before concluding the transmitter is hung. */
-#define TX_TIMEOUT (4*HZ)
-
-MODULE_AUTHOR("Scott Nicholas <neutronscott@scottn.us>");
-MODULE_DESCRIPTION("ADM8668 new ethernet driver.");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(DRV_VERSION);
-
-#ifdef TULIP_DEBUG
-int tulip_debug = TULIP_DEBUG;
-#else
-int tulip_debug = 1;
-#endif
-
-static void tulip_tx_timeout(struct net_device *dev);
-static void tulip_init_ring(struct net_device *dev);
-static void tulip_free_ring(struct net_device *dev);
-static netdev_tx_t tulip_start_xmit(struct sk_buff *skb,
- struct net_device *dev);
-static int tulip_open(struct net_device *dev);
-static int tulip_close(struct net_device *dev);
-static void tulip_up(struct net_device *dev);
-static void tulip_down(struct net_device *dev);
-static struct net_device_stats *tulip_get_stats(struct net_device *dev);
-//static int private_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
-static void set_rx_mode(struct net_device *dev);
-#ifdef CONFIG_NET_POLL_CONTROLLER
-static void poll_tulip(struct net_device *dev);
-#endif
-
-static void tulip_up(struct net_device *dev)
-{
- struct tulip_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->base_addr;
-
- napi_enable(&tp->napi);
-
- /* Reset the chip, holding bit 0 set at least 50 PCI cycles. */
- iowrite32(0x00000001, ioaddr + CSR0);
-
- /* Deassert reset.
- Wait the specified 50 PCI cycles after a reset by initializing
- Tx and Rx queues and the address filter list. */
- iowrite32(tp->csr0, ioaddr + CSR0);
-
- if (tulip_debug > 1)
- printk(KERN_DEBUG "%s: tulip_up(), irq==%d\n",
- dev->name, dev->irq);
-
- iowrite32(tp->rx_ring_dma, ioaddr + CSR3);
- iowrite32(tp->tx_ring_dma, ioaddr + CSR4);
- tp->cur_rx = tp->cur_tx = 0;
- tp->dirty_rx = tp->dirty_tx = 0;
-
- /* set mac address */
- iowrite32(get_unaligned_le32(dev->dev_addr), ioaddr + 0xA4);
- iowrite32(get_unaligned_le16(dev->dev_addr + 4), ioaddr + 0xA8);
- iowrite32(0, ioaddr + CSR27);
- iowrite32(0, ioaddr + CSR28);
-
- tp->csr6 = 0;
-
- /* Enable automatic Tx underrun recovery. */
- iowrite32(ioread32(ioaddr + CSR18) | 1, ioaddr + CSR18);
- tp->csr6 = 0x00040000;
-
- /* Start the chip's Tx to process setup frame. */
- tulip_stop_rxtx(tp);
- barrier();
- udelay(5);
- iowrite32(tp->csr6 | TxOn, ioaddr + CSR6);
-
- /* Enable interrupts by setting the interrupt mask. */
- iowrite32(VALID_INTR, ioaddr + CSR5);
- iowrite32(VALID_INTR, ioaddr + CSR7);
- tulip_start_rxtx(tp);
- iowrite32(0, ioaddr + CSR2); /* Rx poll demand */
-
- if (tulip_debug > 2) {
- printk(KERN_DEBUG "%s: Done tulip_up(), CSR0 %08x, CSR5 %08x CSR6 %08x\n",
- dev->name, ioread32(ioaddr + CSR0),
- ioread32(ioaddr + CSR5),
- ioread32(ioaddr + CSR6));
- }
-
- init_timer(&tp->oom_timer);
- tp->oom_timer.data = (unsigned long)dev;
- tp->oom_timer.function = oom_timer;
-}
-
-static int
-tulip_open(struct net_device *dev)
-{
- int retval;
-
- tulip_init_ring (dev);
-
- retval = request_irq(dev->irq, tulip_interrupt, 0, dev->name, dev);
- if (retval)
- goto free_ring;
-
- tulip_up (dev);
-
- netif_start_queue (dev);
-
- return 0;
-
-free_ring:
- tulip_free_ring (dev);
- return retval;
-}
-
-
-static void tulip_tx_timeout(struct net_device *dev)
-{
- struct tulip_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->base_addr;
- unsigned long flags;
-
- spin_lock_irqsave (&tp->lock, flags);
-
- dev_warn(&dev->dev,
- "Transmit timed out, status %08x, CSR12 %08x, resetting...\n",
- ioread32(ioaddr + CSR5), ioread32(ioaddr + CSR12));
-
- tulip_tx_timeout_complete(tp, ioaddr);
-
- spin_unlock_irqrestore (&tp->lock, flags);
- dev->trans_start = jiffies; /* prevent tx timeout */
- netif_wake_queue (dev);
-}
-
-
-/* Initialize the Rx and Tx rings, along with various 'dev' bits. */
-static void tulip_init_ring(struct net_device *dev)
-{
- struct tulip_private *tp = netdev_priv(dev);
- int i;
-
- tp->nir = 0;
-
- for (i = 0; i < RX_RING_SIZE; i++) {
- tp->rx_ring[i].status = 0x00000000;
- tp->rx_ring[i].length = cpu_to_le32(PKT_BUF_SZ);
- tp->rx_ring[i].buffer2 = cpu_to_le32(tp->rx_ring_dma + sizeof(struct tulip_rx_desc) * (i + 1));
- tp->rx_buffers[i].skb = NULL;
- tp->rx_buffers[i].mapping = 0;
- }
- /* Mark the last entry as wrapping the ring. */
- tp->rx_ring[i-1].length = cpu_to_le32(PKT_BUF_SZ | DESC_RING_WRAP);
- tp->rx_ring[i-1].buffer2 = cpu_to_le32(tp->rx_ring_dma);
-
- for (i = 0; i < RX_RING_SIZE; i++) {
- dma_addr_t mapping;
- /* Note the receive buffer must be longword aligned.
- dev_alloc_skb() provides 16 byte alignment. But do *not*
- use skb_reserve() to align the IP header! */
- struct sk_buff *skb = dev_alloc_skb(PKT_BUF_SZ);
- tp->rx_buffers[i].skb = skb;
- if (skb == NULL)
- break;
- mapping = dma_map_single(&dev->dev, skb->data,
- PKT_BUF_SZ, DMA_FROM_DEVICE);
- tp->rx_buffers[i].mapping = mapping;
- skb->dev = dev; /* Mark as being used by this device. */
- tp->rx_ring[i].status = cpu_to_le32(DescOwned); /* Owned by Tulip chip */
- tp->rx_ring[i].buffer1 = cpu_to_le32(mapping);
- }
- tp->dirty_rx = (unsigned int)(i - RX_RING_SIZE);
-
- /* The Tx buffer descriptor is filled in as needed, but we
- do need to clear the ownership bit. */
- for (i = 0; i < TX_RING_SIZE; i++) {
- tp->tx_buffers[i].skb = NULL;
- tp->tx_buffers[i].mapping = 0;
- tp->tx_ring[i].status = 0x00000000;
- tp->tx_ring[i].buffer2 = cpu_to_le32(tp->tx_ring_dma + sizeof(struct tulip_tx_desc) * (i + 1));
- }
- tp->tx_ring[i-1].buffer2 = cpu_to_le32(tp->tx_ring_dma);
-}
-
-static netdev_tx_t
-tulip_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct tulip_private *tp = netdev_priv(dev);
- int entry;
- u32 flag;
- dma_addr_t mapping;
- unsigned long flags;
-
- spin_lock_irqsave(&tp->lock, flags);
-
- /* Calculate the next Tx descriptor entry. */
- entry = tp->cur_tx % TX_RING_SIZE;
-
- tp->tx_buffers[entry].skb = skb;
- mapping = dma_map_single(&tp->pdev->dev, skb->data, skb->len,
- DMA_TO_DEVICE);
- tp->tx_buffers[entry].mapping = mapping;
- tp->tx_ring[entry].buffer1 = cpu_to_le32(mapping);
-
- if (tp->cur_tx - tp->dirty_tx < TX_RING_SIZE/2) {/* Typical path */
- flag = 0x60000000; /* No interrupt */
- } else if (tp->cur_tx - tp->dirty_tx == TX_RING_SIZE/2) {
- flag = 0xe0000000; /* Tx-done intr. */
- } else if (tp->cur_tx - tp->dirty_tx < TX_RING_SIZE - 2) {
- flag = 0x60000000; /* No Tx-done intr. */
- } else { /* Leave room for set_rx_mode() to fill entries. */
- flag = 0xe0000000; /* Tx-done intr. */
- netif_stop_queue(dev);
- }
- if (entry == TX_RING_SIZE-1)
- flag = 0xe0000000 | DESC_RING_WRAP;
-
- tp->tx_ring[entry].length = cpu_to_le32(skb->len | flag);
- /* if we were using Transmit Automatic Polling, we would need a
- * wmb() here. */
- tp->tx_ring[entry].status = cpu_to_le32(DescOwned);
- wmb();
-
- tp->cur_tx++;
-
- /* Trigger an immediate transmit demand. */
- iowrite32(0, tp->base_addr + CSR1);
-
- spin_unlock_irqrestore(&tp->lock, flags);
-
- return NETDEV_TX_OK;
-}
-
-static void tulip_clean_tx_ring(struct tulip_private *tp)
-{
- unsigned int dirty_tx;
-
- for (dirty_tx = tp->dirty_tx ; tp->cur_tx - dirty_tx > 0;
- dirty_tx++) {
- int entry = dirty_tx % TX_RING_SIZE;
- int status = le32_to_cpu(tp->tx_ring[entry].status);
-
- if (status < 0) {
- tp->stats.tx_errors++; /* It wasn't Txed */
- tp->tx_ring[entry].status = 0;
- }
-
- dma_unmap_single(&tp->pdev->dev, tp->tx_buffers[entry].mapping,
- tp->tx_buffers[entry].skb->len,
- DMA_TO_DEVICE);
-
- /* Free the original skb. */
- dev_kfree_skb_irq(tp->tx_buffers[entry].skb);
- tp->tx_buffers[entry].skb = NULL;
- tp->tx_buffers[entry].mapping = 0;
- }
-}
-
-static void tulip_down (struct net_device *dev)
-{
- struct tulip_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->base_addr;
- unsigned long flags;
-
- napi_disable(&tp->napi);
- del_timer_sync (&tp->oom_timer);
- spin_lock_irqsave (&tp->lock, flags);
-
- /* Disable interrupts by clearing the interrupt mask. */
- iowrite32 (0x00000000, ioaddr + CSR7);
-
- /* Stop the Tx and Rx processes. */
- tulip_stop_rxtx(tp);
-
- /* prepare receive buffers */
- tulip_refill_rx(dev);
-
- /* release any unconsumed transmit buffers */
- tulip_clean_tx_ring(tp);
-
- if (ioread32 (ioaddr + CSR6) != 0xffffffff)
- tp->stats.rx_missed_errors += ioread32 (ioaddr + CSR8) & 0xffff;
-
- spin_unlock_irqrestore (&tp->lock, flags);
-}
-
-static void tulip_free_ring (struct net_device *dev)
-{
- struct tulip_private *tp = netdev_priv(dev);
- int i;
-
- /* Free all the skbuffs in the Rx queue. */
- for (i = 0; i < RX_RING_SIZE; i++) {
- struct sk_buff *skb = tp->rx_buffers[i].skb;
- dma_addr_t mapping = tp->rx_buffers[i].mapping;
-
- tp->rx_buffers[i].skb = NULL;
- tp->rx_buffers[i].mapping = 0;
-
- tp->rx_ring[i].status = 0; /* Not owned by Tulip chip. */
- tp->rx_ring[i].length = 0;
- /* An invalid address. */
- tp->rx_ring[i].buffer1 = cpu_to_le32(0xBADF00D0);
- if (skb) {
- dma_unmap_single(&tp->pdev->dev, mapping, PKT_BUF_SZ,
- DMA_FROM_DEVICE);
- dev_kfree_skb (skb);
- }
- }
-
- for (i = 0; i < TX_RING_SIZE; i++) {
- struct sk_buff *skb = tp->tx_buffers[i].skb;
-
- if (skb != NULL) {
- dma_unmap_single(&tp->pdev->dev,
- tp->tx_buffers[i].mapping, skb->len, DMA_TO_DEVICE);
- dev_kfree_skb (skb);
- }
- tp->tx_buffers[i].skb = NULL;
- tp->tx_buffers[i].mapping = 0;
- }
-}
-
-static int tulip_close (struct net_device *dev)
-{
- struct tulip_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->base_addr;
-
- netif_stop_queue (dev);
-
- tulip_down (dev);
-
- if (tulip_debug > 1)
- dev_printk(KERN_DEBUG, &dev->dev,
- "Shutting down ethercard, status was %02x\n",
- ioread32 (ioaddr + CSR5));
-
- free_irq (dev->irq, dev);
-
- tulip_free_ring (dev);
-
- return 0;
-}
-
-static struct net_device_stats *tulip_get_stats(struct net_device *dev)
-{
- struct tulip_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->base_addr;
-
- if (netif_running(dev)) {
- unsigned long flags;
-
- spin_lock_irqsave (&tp->lock, flags);
-
- tp->stats.rx_missed_errors += ioread32(ioaddr + CSR8) & 0xffff;
-
- spin_unlock_irqrestore(&tp->lock, flags);
- }
-
- return &tp->stats;
-}
-
-
-static void tulip_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
-{
- strcpy(info->driver, DRV_NAME);
- strcpy(info->version, DRV_VERSION);
- strcpy(info->bus_info, "mmio");
-}
-
-static const struct ethtool_ops ops = {
- .get_drvinfo = tulip_get_drvinfo
-};
-
-static void set_rx_mode(struct net_device *dev)
-{
- struct tulip_private *tp = netdev_priv(dev);
- void __iomem *ioaddr = tp->base_addr;
- int csr6;
-
- csr6 = ioread32(ioaddr + CSR6) & ~0x00D5;
-
- tp->csr6 &= ~0x00D5;
- if (dev->flags & IFF_PROMISC) { /* Set promiscuous. */
- tp->csr6 |= AcceptAllMulticast | AcceptAllPhys;
- csr6 |= AcceptAllMulticast | AcceptAllPhys;
- } else if ((netdev_mc_count(dev) > 1000) ||
- (dev->flags & IFF_ALLMULTI)) {
- /* Too many to filter well -- accept all multicasts. */
- tp->csr6 |= AcceptAllMulticast;
- csr6 |= AcceptAllMulticast;
- } else {
- /* Some work-alikes have only a 64-entry hash filter table. */
- /* Should verify correctness on big-endian/__powerpc__ */
- struct netdev_hw_addr *ha;
- if (netdev_mc_count(dev) > 64) {
- /* Arbitrary non-effective limit. */
- tp->csr6 |= AcceptAllMulticast;
- csr6 |= AcceptAllMulticast;
- } else {
- u32 mc_filter[2] = {0, 0}; /* Multicast hash filter */
- int filterbit;
- netdev_for_each_mc_addr(ha, dev) {
- filterbit = ether_crc_le(ETH_ALEN, ha->addr);
- filterbit &= 0x3f;
- mc_filter[filterbit >> 5] |= 1 << (filterbit & 31);
- if (tulip_debug > 2)
- dev_info(&dev->dev,
- "Added filter for %pM %08x bit %d\n",
- ha->addr,
- ether_crc(ETH_ALEN, ha->addr),
- filterbit);
- }
- if (mc_filter[0] == tp->mc_filter[0] &&
- mc_filter[1] == tp->mc_filter[1])
- ; /* No change. */
- iowrite32(mc_filter[0], ioaddr + CSR27);
- iowrite32(mc_filter[1], ioaddr + CSR28);
- tp->mc_filter[0] = mc_filter[0];
- tp->mc_filter[1] = mc_filter[1];
- }
- }
-
- if (dev->irq == ADM8668_LAN_IRQ)
- csr6 |= (1 << 9); /* force 100Mbps full duplex */
-// csr6 |= 1; /* pad 2 bytes. vlan? */
-
- iowrite32(csr6, ioaddr + CSR6);
-}
-
-static const struct net_device_ops tulip_netdev_ops = {
- .ndo_open = tulip_open,
- .ndo_start_xmit = tulip_start_xmit,
- .ndo_tx_timeout = tulip_tx_timeout,
- .ndo_stop = tulip_close,
- .ndo_get_stats = tulip_get_stats,
- .ndo_set_rx_mode = set_rx_mode,
- .ndo_change_mtu = eth_change_mtu,
- .ndo_set_mac_address = eth_mac_addr,
- .ndo_validate_addr = eth_validate_addr,
-#ifdef CONFIG_NET_POLL_CONTROLLER
- .ndo_poll_controller = poll_tulip,
-#endif
-};
-
-static int __devinit adm8668net_probe(struct platform_device *pdev)
-{
- struct tulip_private *tp;
- struct net_device *dev;
- struct resource *res;
- void __iomem *ioaddr;
- int irq;
-
- if (pdev->id < 0 || pdev->id >= MAX_UNITS)
- return -EINVAL;
-
- if (!(res = platform_get_resource(pdev, IORESOURCE_IRQ, 0)))
- return -ENODEV;
- irq = res->start;
- if (!(res = platform_get_resource(pdev, IORESOURCE_MEM, 0)))
- return -ENODEV;
- if (!(ioaddr = ioremap(res->start, res->end - res->start)))
- return -ENODEV;
- if (!(dev = alloc_etherdev(sizeof (*tp))))
- return -ENOMEM;
-
- /* setup net dev */
- dev->base_addr = (unsigned long)res->start;
- dev->irq = irq;
- SET_NETDEV_DEV(dev, &pdev->dev);
-
- /* tulip private struct */
- tp = netdev_priv(dev);
- tp->dev = dev;
- tp->base_addr = ioaddr;
- tp->csr0 = csr0;
- tp->pdev = pdev;
- tp->rx_ring = dma_alloc_coherent(&pdev->dev,
- sizeof(struct tulip_rx_desc) * RX_RING_SIZE +
- sizeof(struct tulip_tx_desc) * TX_RING_SIZE,
- &tp->rx_ring_dma, GFP_KERNEL);
- if (!tp->rx_ring)
- return -ENODEV;
- tp->tx_ring = (struct tulip_tx_desc *)(tp->rx_ring + RX_RING_SIZE);
- tp->tx_ring_dma = tp->rx_ring_dma + sizeof(struct tulip_rx_desc) * RX_RING_SIZE;
-
- spin_lock_init(&tp->lock);
-
- /* Stop the chip's Tx and Rx processes. */
- tulip_stop_rxtx(tp);
-
- /* Clear the missed-packet counter. */
- ioread32(ioaddr + CSR8);
-
- /* Addresses are stored in BSP area of NOR flash */
- if (irq == ADM8668_WAN_IRQ)
- memcpy(dev->dev_addr, (char *)ADM8668_WAN_MACADDR, 6);
- else
- memcpy(dev->dev_addr, (char *)ADM8668_LAN_MACADDR, 6);
-
- /* The Tulip-specific entries in the device structure. */
- dev->netdev_ops = &tulip_netdev_ops;
- dev->watchdog_timeo = TX_TIMEOUT;
- netif_napi_add(dev, &tp->napi, tulip_poll, 16);
- SET_ETHTOOL_OPS(dev, &ops);
-
- if (register_netdev(dev))
- goto err_out_free_ring;
-
- dev_info(&dev->dev,
- "ADM8668net at MMIO %#lx %pM, IRQ %d\n",
- (unsigned long)dev->base_addr, dev->dev_addr, irq);
-
- platform_set_drvdata(pdev, dev);
- return 0;
-
-err_out_free_ring:
- dma_free_coherent(&pdev->dev,
- sizeof (struct tulip_rx_desc) * RX_RING_SIZE +
- sizeof (struct tulip_tx_desc) * TX_RING_SIZE,
- tp->rx_ring, tp->rx_ring_dma);
- return -ENODEV;
-}
-
-static int __devexit adm8668net_remove(struct platform_device *pdev)
-{
- struct net_device *dev = platform_get_drvdata (pdev);
- struct tulip_private *tp;
-
- if (!dev)
- return -ENODEV;
-
- tp = netdev_priv(dev);
- unregister_netdev(dev);
- dma_free_coherent(&pdev->dev,
- sizeof (struct tulip_rx_desc) * RX_RING_SIZE +
- sizeof (struct tulip_tx_desc) * TX_RING_SIZE,
- tp->rx_ring, tp->rx_ring_dma);
- iounmap(tp->base_addr);
- free_netdev(dev);
- platform_set_drvdata(pdev, NULL);
- return 0;
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-/*
- * Polling 'interrupt' - used by things like netconsole to send skbs
- * without having to re-enable interrupts. It's not called while
- * the interrupt routine is executing.
- */
-
-static void poll_tulip (struct net_device *dev)
-{
- /* disable_irq here is not very nice, but with the lockless
- interrupt handler we have no other choice. */
- disable_irq(dev->irq);
- tulip_interrupt(dev->irq, dev);
- enable_irq(dev->irq);
-}
-#endif
-
-static struct platform_driver adm8668net_platform_driver = {
- .probe = adm8668net_probe,
- .remove = __devexit_p(adm8668net_remove),
- .driver = {
- .owner = THIS_MODULE,
- .name = "adm8668_eth"
- },
-};
-
-static int __init adm8668net_init(void)
-{
- pr_info("%s", version);
- return platform_driver_register(&adm8668net_platform_driver);
-}
-
-static void __exit adm8668net_exit(void)
-{
- platform_driver_unregister(&adm8668net_platform_driver);
-}
-
-module_init(adm8668net_init);
-module_exit(adm8668net_exit);
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-02 22:07:29 +0000