+++ /dev/null
-Index: linux-2.6.30.8/drivers/net/Kconfig
-===================================================================
---- linux-2.6.30.8.orig/drivers/net/Kconfig 2009-10-19 21:31:30.000000000 +0200
-+++ linux-2.6.30.8/drivers/net/Kconfig 2009-10-19 21:31:32.000000000 +0200
-@@ -353,6 +353,12 @@
-
- source "drivers/net/arm/Kconfig"
-
-+config IFXMIPS_MII0
-+ tristate "Infineon IFXMips eth0 driver"
-+ depends on IFXMIPS
-+ help
-+ Support for the MII0 inside the IFXMips SOC
-+
- config AX88796
- tristate "ASIX AX88796 NE2000 clone support"
- depends on ARM || MIPS || SUPERH
-Index: linux-2.6.30.8/drivers/net/Makefile
-===================================================================
---- linux-2.6.30.8.orig/drivers/net/Makefile 2009-10-19 21:31:30.000000000 +0200
-+++ linux-2.6.30.8/drivers/net/Makefile 2009-10-19 21:31:32.000000000 +0200
-@@ -234,6 +234,7 @@
- obj-$(CONFIG_MLX4_CORE) += mlx4/
- obj-$(CONFIG_ENC28J60) += enc28j60.o
- obj-$(CONFIG_ETHOC) += ethoc.o
-+obj-$(CONFIG_IFXMIPS_MII0) += ifxmips_mii0.o
-
- obj-$(CONFIG_XTENSA_XT2000_SONIC) += xtsonic.o
-
-Index: linux-2.6.30.8/drivers/net/ifxmips_mii0.c
-===================================================================
---- /dev/null 2010-01-25 20:01:36.843225078 +0100
-+++ linux-2.6.30.10/drivers/net/ifxmips_mii0.c 2010-03-13 19:04:25.000000000 +0100
-@@ -0,0 +1,489 @@
-+/*
-+ * 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.
-+ *
-+ * Copyright (C) 2005 Wu Qi Ming <Qi-Ming.Wu@infineon.com>
-+ * Copyright (C) 2008 John Crispin <blogic@openwrt.org>
-+ */
-+
-+#include <linux/kernel.h>
-+#include <linux/slab.h>
-+#include <linux/errno.h>
-+#include <linux/types.h>
-+#include <linux/interrupt.h>
-+#include <linux/uaccess.h>
-+#include <linux/in.h>
-+#include <linux/netdevice.h>
-+#include <linux/etherdevice.h>
-+#include <linux/phy.h>
-+#include <linux/ip.h>
-+#include <linux/tcp.h>
-+#include <linux/skbuff.h>
-+#include <linux/mm.h>
-+#include <linux/platform_device.h>
-+#include <linux/ethtool.h>
-+#include <linux/init.h>
-+#include <linux/delay.h>
-+
-+#include <asm/checksum.h>
-+
-+#include <ifxmips.h>
-+#include <ifxmips_dma.h>
-+#include <ifxmips_pmu.h>
-+
-+struct ifxmips_mii_priv {
-+ struct net_device_stats stats;
-+ struct dma_device_info *dma_device;
-+ struct sk_buff *skb;
-+
-+ struct mii_bus *mii_bus;
-+ struct phy_device *phydev;
-+ int oldlink, oldspeed, oldduplex;
-+};
-+
-+static struct net_device *ifxmips_mii0_dev;
-+static unsigned char mac_addr[MAX_ADDR_LEN];
-+
-+static int ifxmips_mdiobus_write(struct mii_bus *bus, int phy_addr,
-+ int phy_reg, u16 phy_data)
-+{
-+ u32 val = MDIO_ACC_REQUEST |
-+ ((phy_addr & MDIO_ACC_ADDR_MASK) << MDIO_ACC_ADDR_OFFSET) |
-+ ((phy_reg & MDIO_ACC_REG_MASK) << MDIO_ACC_REG_OFFSET) |
-+ phy_data;
-+
-+ while (ifxmips_r32(IFXMIPS_PPE32_MDIO_ACC) & MDIO_ACC_REQUEST)
-+ ;
-+ ifxmips_w32(val, IFXMIPS_PPE32_MDIO_ACC);
-+
-+ return 0;
-+}
-+
-+static int ifxmips_mdiobus_read(struct mii_bus *bus, int phy_addr, int phy_reg)
-+{
-+ u32 val = MDIO_ACC_REQUEST | MDIO_ACC_READ |
-+ ((phy_addr & MDIO_ACC_ADDR_MASK) << MDIO_ACC_ADDR_OFFSET) |
-+ ((phy_reg & MDIO_ACC_REG_MASK) << MDIO_ACC_REG_OFFSET);
-+
-+ while (ifxmips_r32(IFXMIPS_PPE32_MDIO_ACC) & MDIO_ACC_REQUEST)
-+ ;
-+ ifxmips_w32(val, IFXMIPS_PPE32_MDIO_ACC);
-+ while (ifxmips_r32(IFXMIPS_PPE32_MDIO_ACC) & MDIO_ACC_REQUEST)
-+ ;
-+ val = ifxmips_r32(IFXMIPS_PPE32_MDIO_ACC) & MDIO_ACC_VAL_MASK;
-+ return val;
-+}
-+
-+int ifxmips_ifxmips_mii_open(struct net_device *dev)
-+{
-+ struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv *)netdev_priv(dev);
-+ struct dma_device_info *dma_dev = priv->dma_device;
-+ int i;
-+
-+ for (i = 0; i < dma_dev->max_rx_chan_num; i++) {
-+ if ((dma_dev->rx_chan[i])->control == IFXMIPS_DMA_CH_ON)
-+ (dma_dev->rx_chan[i])->open(dma_dev->rx_chan[i]);
-+ }
-+ netif_start_queue(dev);
-+ return 0;
-+}
-+
-+int ifxmips_mii_release(struct net_device *dev)
-+{
-+ struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv *)netdev_priv(dev);
-+ struct dma_device_info *dma_dev = priv->dma_device;
-+ int i;
-+
-+ for (i = 0; i < dma_dev->max_rx_chan_num; i++)
-+ dma_dev->rx_chan[i]->close(dma_dev->rx_chan[i]);
-+ netif_stop_queue(dev);
-+ return 0;
-+}
-+
-+int ifxmips_mii_hw_receive(struct net_device *dev, struct dma_device_info *dma_dev)
-+{
-+ struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv *)netdev_priv(dev);
-+ unsigned char *buf = NULL;
-+ struct sk_buff *skb = NULL;
-+ int len = 0;
-+
-+ len = dma_device_read(dma_dev, &buf, (void **)&skb);
-+
-+ if (len >= ETHERNET_PACKET_DMA_BUFFER_SIZE) {
-+ printk(KERN_INFO "ifxmips_mii0: packet too large %d\n", len);
-+ goto ifxmips_mii_hw_receive_err_exit;
-+ }
-+
-+ /* remove CRC */
-+ len -= 4;
-+ if (skb == NULL) {
-+ printk(KERN_INFO "ifxmips_mii0: cannot restore pointer\n");
-+ goto ifxmips_mii_hw_receive_err_exit;
-+ }
-+
-+ if (len > (skb->end - skb->tail)) {
-+ printk(KERN_INFO "ifxmips_mii0: BUG, len:%d end:%p tail:%p\n",
-+ (len+4), skb->end, skb->tail);
-+ goto ifxmips_mii_hw_receive_err_exit;
-+ }
-+
-+ skb_put(skb, len);
-+ skb->dev = dev;
-+ skb->protocol = eth_type_trans(skb, dev);
-+ netif_rx(skb);
-+
-+ priv->stats.rx_packets++;
-+ priv->stats.rx_bytes += len;
-+ return 0;
-+
-+ifxmips_mii_hw_receive_err_exit:
-+ if (len == 0) {
-+ if (skb)
-+ dev_kfree_skb_any(skb);
-+ priv->stats.rx_errors++;
-+ priv->stats.rx_dropped++;
-+ return -EIO;
-+ } else {
-+ return len;
-+ }
-+}
-+
-+int ifxmips_mii_hw_tx(char *buf, int len, struct net_device *dev)
-+{
-+ int ret = 0;
-+ struct ifxmips_mii_priv *priv = netdev_priv(dev);
-+ struct dma_device_info *dma_dev = priv->dma_device;
-+ ret = dma_device_write(dma_dev, buf, len, priv->skb);
-+ return ret;
-+}
-+
-+int ifxmips_mii_tx(struct sk_buff *skb, struct net_device *dev)
-+{
-+ int len;
-+ char *data;
-+ struct ifxmips_mii_priv *priv = netdev_priv(dev);
-+ struct dma_device_info *dma_dev = priv->dma_device;
-+
-+ len = skb->len < ETH_ZLEN ? ETH_ZLEN : skb->len;
-+ data = skb->data;
-+ priv->skb = skb;
-+ dev->trans_start = jiffies;
-+ /* TODO: we got more than 1 dma channel,
-+ so we should do something intelligent here to select one */
-+ dma_dev->current_tx_chan = 0;
-+
-+ wmb();
-+
-+ if (ifxmips_mii_hw_tx(data, len, dev) != len) {
-+ dev_kfree_skb_any(skb);
-+ priv->stats.tx_errors++;
-+ priv->stats.tx_dropped++;
-+ } else {
-+ priv->stats.tx_packets++;
-+ priv->stats.tx_bytes += len;
-+ }
-+
-+ return 0;
-+}
-+
-+void ifxmips_mii_tx_timeout(struct net_device *dev)
-+{
-+ int i;
-+ struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv *)netdev_priv(dev);
-+
-+ priv->stats.tx_errors++;
-+ for (i = 0; i < priv->dma_device->max_tx_chan_num; i++)
-+ priv->dma_device->tx_chan[i]->disable_irq(priv->dma_device->tx_chan[i]);
-+ netif_wake_queue(dev);
-+ return;
-+}
-+
-+int dma_intr_handler(struct dma_device_info *dma_dev, int status)
-+{
-+ int i;
-+
-+ switch (status) {
-+ case RCV_INT:
-+ ifxmips_mii_hw_receive(ifxmips_mii0_dev, dma_dev);
-+ break;
-+
-+ case TX_BUF_FULL_INT:
-+ printk(KERN_INFO "ifxmips_mii0: tx buffer full\n");
-+ netif_stop_queue(ifxmips_mii0_dev);
-+ for (i = 0; i < dma_dev->max_tx_chan_num; i++) {
-+ if ((dma_dev->tx_chan[i])->control == IFXMIPS_DMA_CH_ON)
-+ dma_dev->tx_chan[i]->enable_irq(dma_dev->tx_chan[i]);
-+ }
-+ break;
-+
-+ case TRANSMIT_CPT_INT:
-+ for (i = 0; i < dma_dev->max_tx_chan_num; i++)
-+ dma_dev->tx_chan[i]->disable_irq(dma_dev->tx_chan[i]);
-+
-+ netif_wake_queue(ifxmips_mii0_dev);
-+ break;
-+ }
-+
-+ return 0;
-+}
-+
-+unsigned char *ifxmips_etop_dma_buffer_alloc(int len, int *byte_offset, void **opt)
-+{
-+ unsigned char *buffer = NULL;
-+ struct sk_buff *skb = NULL;
-+
-+ skb = dev_alloc_skb(ETHERNET_PACKET_DMA_BUFFER_SIZE);
-+ if (skb == NULL)
-+ return NULL;
-+
-+ buffer = (unsigned char *)(skb->data);
-+ skb_reserve(skb, 2);
-+ *(int *)opt = (int)skb;
-+ *byte_offset = 2;
-+
-+ return buffer;
-+}
-+
-+void ifxmips_etop_dma_buffer_free(unsigned char *dataptr, void *opt)
-+{
-+ struct sk_buff *skb = NULL;
-+
-+ if (opt == NULL) {
-+ kfree(dataptr);
-+ } else {
-+ skb = (struct sk_buff *)opt;
-+ dev_kfree_skb_any(skb);
-+ }
-+}
-+
-+static struct net_device_stats *ifxmips_get_stats(struct net_device *dev)
-+{
-+ return &((struct ifxmips_mii_priv *)netdev_priv(dev))->stats;
-+}
-+
-+static void
-+ifxmips_adjust_link(struct net_device *dev)
-+{
-+ struct ifxmips_mii_priv *priv = netdev_priv(dev);
-+ struct phy_device *phydev = priv->phydev;
-+ int new_state = 0;
-+
-+ /* Did anything change? */
-+ if (priv->oldlink != phydev->link ||
-+ priv->oldduplex != phydev->duplex ||
-+ priv->oldspeed != phydev->speed) {
-+ /* Yes, so update status and mark as changed */
-+ new_state = 1;
-+ priv->oldduplex = phydev->duplex;
-+ priv->oldspeed = phydev->speed;
-+ priv->oldlink = phydev->link;
-+ }
-+
-+ /* If link status changed, show new status */
-+ if (new_state)
-+ phy_print_status(phydev);
-+}
-+
-+static int mii_probe(struct net_device *dev)
-+{
-+ struct ifxmips_mii_priv *priv = netdev_priv(dev);
-+ struct phy_device *phydev = NULL;
-+ int phy_addr;
-+
-+ priv->oldlink = 0;
-+ priv->oldspeed = 0;
-+ priv->oldduplex = -1;
-+
-+ /* find the first (lowest address) PHY on the current MAC's MII bus */
-+ for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) {
-+ if (priv->mii_bus->phy_map[phy_addr]) {
-+ phydev = priv->mii_bus->phy_map[phy_addr];
-+ break; /* break out with first one found */
-+ }
-+ }
-+
-+ if (!phydev) {
-+ printk (KERN_ERR "%s: no PHY found\n", dev->name);
-+ return -ENODEV;
-+ }
-+
-+ /* now we are supposed to have a proper phydev, to attach to... */
-+ BUG_ON(!phydev);
-+ BUG_ON(phydev->attached_dev);
-+
-+ phydev = phy_connect(dev, dev_name(&phydev->dev), &ifxmips_adjust_link,
-+ 0, PHY_INTERFACE_MODE_MII);
-+
-+ if (IS_ERR(phydev)) {
-+ printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name);
-+ return PTR_ERR(phydev);
-+ }
-+
-+ /* mask with MAC supported features */
-+ phydev->supported &= (SUPPORTED_10baseT_Half
-+ | SUPPORTED_10baseT_Full
-+ | SUPPORTED_100baseT_Half
-+ | SUPPORTED_100baseT_Full
-+ | SUPPORTED_Autoneg
-+ /* | SUPPORTED_Pause | SUPPORTED_Asym_Pause */
-+ | SUPPORTED_MII
-+ | SUPPORTED_TP);
-+
-+ phydev->advertising = phydev->supported;
-+
-+ priv->phydev = phydev;
-+
-+ printk(KERN_INFO "%s: attached PHY driver [%s] "
-+ "(mii_bus:phy_addr=%s, irq=%d)\n",
-+ dev->name, phydev->drv->name, dev_name(&phydev->dev), phydev->irq);
-+
-+ return 0;
-+}
-+
-+
-+static int ifxmips_mii_dev_init(struct net_device *dev)
-+{
-+ int i;
-+ struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv *)netdev_priv(dev);
-+ ether_setup(dev);
-+ dev->open = ifxmips_ifxmips_mii_open;
-+ dev->stop = ifxmips_mii_release;
-+ dev->hard_start_xmit = ifxmips_mii_tx;
-+ dev->get_stats = ifxmips_get_stats;
-+ dev->tx_timeout = ifxmips_mii_tx_timeout;
-+ dev->watchdog_timeo = 10 * HZ;
-+ memset(priv, 0, sizeof(struct ifxmips_mii_priv));
-+ priv->dma_device = dma_device_reserve("PPE");
-+ if (!priv->dma_device) {
-+ BUG();
-+ return -ENODEV;
-+ }
-+ priv->dma_device->buffer_alloc = &ifxmips_etop_dma_buffer_alloc;
-+ priv->dma_device->buffer_free = &ifxmips_etop_dma_buffer_free;
-+ priv->dma_device->intr_handler = &dma_intr_handler;
-+ priv->dma_device->max_rx_chan_num = 4;
-+
-+ for (i = 0; i < priv->dma_device->max_rx_chan_num; i++) {
-+ priv->dma_device->rx_chan[i]->packet_size = ETHERNET_PACKET_DMA_BUFFER_SIZE;
-+ priv->dma_device->rx_chan[i]->control = IFXMIPS_DMA_CH_ON;
-+ }
-+
-+ for (i = 0; i < priv->dma_device->max_tx_chan_num; i++)
-+ if (i == 0)
-+ priv->dma_device->tx_chan[i]->control = IFXMIPS_DMA_CH_ON;
-+ else
-+ priv->dma_device->tx_chan[i]->control = IFXMIPS_DMA_CH_OFF;
-+
-+ dma_device_register(priv->dma_device);
-+
-+ printk(KERN_INFO "%s: using mac=", dev->name);
-+ for (i = 0; i < 6; i++) {
-+ dev->dev_addr[i] = mac_addr[i];
-+ printk("%02X%c", dev->dev_addr[i], (i == 5) ? ('\n') : (':'));
-+ }
-+
-+ priv->mii_bus = mdiobus_alloc();
-+ if (priv->mii_bus == NULL)
-+ return -ENOMEM;
-+
-+ priv->mii_bus->priv = dev;
-+ priv->mii_bus->read = ifxmips_mdiobus_read;
-+ priv->mii_bus->write = ifxmips_mdiobus_write;
-+ priv->mii_bus->name = "ifxmips_mii";
-+ snprintf(priv->mii_bus->id, MII_BUS_ID_SIZE, "%x", 0);
-+ priv->mii_bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);
-+ for(i = 0; i < PHY_MAX_ADDR; ++i)
-+ priv->mii_bus->irq[i] = PHY_POLL;
-+
-+ mdiobus_register(priv->mii_bus);
-+
-+ return mii_probe(dev);
-+}
-+
-+static void ifxmips_mii_chip_init(int mode)
-+{
-+ ifxmips_pmu_enable(IFXMIPS_PMU_PWDCR_DMA);
-+ ifxmips_pmu_enable(IFXMIPS_PMU_PWDCR_PPE);
-+
-+ if (mode == REV_MII_MODE)
-+ ifxmips_w32_mask(PPE32_MII_MASK, PPE32_MII_REVERSE, IFXMIPS_PPE32_CFG);
-+ else if (mode == MII_MODE)
-+ ifxmips_w32_mask(PPE32_MII_MASK, PPE32_MII_NORMAL, IFXMIPS_PPE32_CFG);
-+ ifxmips_w32(PPE32_PLEN_UNDER | PPE32_PLEN_OVER, IFXMIPS_PPE32_IG_PLEN_CTRL);
-+ ifxmips_w32(PPE32_CGEN, IFXMIPS_PPE32_ENET_MAC_CFG);
-+ wmb();
-+}
-+
-+static int ifxmips_mii_probe(struct platform_device *dev)
-+{
-+ int result = 0;
-+ unsigned char *mac = (unsigned char *)dev->dev.platform_data;
-+ ifxmips_mii0_dev = alloc_etherdev(sizeof(struct ifxmips_mii_priv));
-+ ifxmips_mii0_dev->init = ifxmips_mii_dev_init;
-+ memcpy(mac_addr, mac, 6);
-+ strcpy(ifxmips_mii0_dev->name, "eth%d");
-+ ifxmips_mii_chip_init(REV_MII_MODE);
-+ result = register_netdev(ifxmips_mii0_dev);
-+ if (result) {
-+ printk(KERN_INFO "ifxmips_mii0: error %i registering device \"%s\"\n", result, ifxmips_mii0_dev->name);
-+ goto out;
-+ }
-+
-+ printk(KERN_INFO "ifxmips_mii0: driver loaded!\n");
-+
-+out:
-+ return result;
-+}
-+
-+static int ifxmips_mii_remove(struct platform_device *dev)
-+{
-+ struct ifxmips_mii_priv *priv = (struct ifxmips_mii_priv *)netdev_priv(ifxmips_mii0_dev);
-+
-+ printk(KERN_INFO "ifxmips_mii0: ifxmips_mii0 cleanup\n");
-+
-+ dma_device_unregister(priv->dma_device);
-+ dma_device_release(priv->dma_device);
-+ kfree(priv->dma_device);
-+ unregister_netdev(ifxmips_mii0_dev);
-+ return 0;
-+}
-+
-+static struct platform_driver ifxmips_mii_driver = {
-+ .probe = ifxmips_mii_probe,
-+ .remove = ifxmips_mii_remove,
-+ .driver = {
-+ .name = "ifxmips_mii0",
-+ .owner = THIS_MODULE,
-+ },
-+};
-+
-+int __init ifxmips_mii_init(void)
-+{
-+ int ret = platform_driver_register(&ifxmips_mii_driver);
-+ if (ret)
-+ printk(KERN_INFO "ifxmips_mii0: Error registering platfom driver!");
-+ return ret;
-+}
-+
-+static void __exit ifxmips_mii_cleanup(void)
-+{
-+ platform_driver_unregister(&ifxmips_mii_driver);
-+}
-+
-+module_init(ifxmips_mii_init);
-+module_exit(ifxmips_mii_cleanup);
-+
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("John Crispin <blogic@openwrt.org>");
-+MODULE_DESCRIPTION("ethernet driver for IFXMIPS boards");
-+
projects / openwrt / svn-archive / archive.git / blobdiff