diff options
Diffstat (limited to 'target/linux/ifxmips/patches-2.6.30/130-ethernet.patch')
| -rw-r--r-- | target/linux/ifxmips/patches-2.6.30/130-ethernet.patch | 406 |
1 files changed, 400 insertions, 6 deletions
diff --git a/target/linux/ifxmips/patches-2.6.30/130-ethernet.patch b/target/linux/ifxmips/patches-2.6.30/130-ethernet.patch index da87bb78c5..b49589dd94 100644 --- a/target/linux/ifxmips/patches-2.6.30/130-ethernet.patch +++ b/target/linux/ifxmips/patches-2.6.30/130-ethernet.patch @@ -1,7 +1,7 @@ -Index: linux-2.6.30.5/drivers/net/Kconfig +Index: linux-2.6.30.8/drivers/net/Kconfig =================================================================== ---- linux-2.6.30.5.orig/drivers/net/Kconfig 2009-09-02 18:22:49.000000000 +0200 -+++ linux-2.6.30.5/drivers/net/Kconfig 2009-09-02 18:29:51.000000000 +0200 +--- 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" @@ -15,10 +15,10 @@ Index: linux-2.6.30.5/drivers/net/Kconfig config AX88796 tristate "ASIX AX88796 NE2000 clone support" depends on ARM || MIPS || SUPERH -Index: linux-2.6.30.5/drivers/net/Makefile +Index: linux-2.6.30.8/drivers/net/Makefile =================================================================== ---- linux-2.6.30.5.orig/drivers/net/Makefile 2009-09-02 18:22:49.000000000 +0200 -+++ linux-2.6.30.5/drivers/net/Makefile 2009-09-02 18:30:37.000000000 +0200 +--- 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 @@ -27,3 +27,397 @@ Index: linux-2.6.30.5/drivers/net/Makefile obj-$(CONFIG_XTENSA_XT2000_SONIC) += xtsonic.o +Index: linux-2.6.30.8/drivers/net/ifxmips_mii0.c +=================================================================== +--- /dev/null 1970-01-01 00:00:00.000000000 +0000 ++++ linux-2.6.30.8/drivers/net/ifxmips_mii0.c 2009-10-19 21:41:10.000000000 +0200 +@@ -0,0 +1,389 @@ ++/* ++ * 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/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; ++}; ++ ++static struct net_device *ifxmips_mii0_dev; ++static unsigned char mac_addr[MAX_ADDR_LEN]; ++ ++void ifxmips_write_mdio(u32 phy_addr, u32 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); ++} ++EXPORT_SYMBOL(ifxmips_write_mdio); ++ ++unsigned short ifxmips_read_mdio(u32 phy_addr, u32 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; ++} ++EXPORT_SYMBOL(ifxmips_read_mdio); ++ ++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 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); ++ printk(KERN_INFO "ifxmips_mii0: %s is up\n", dev->name); ++ 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 "ifxmips_mii0: using mac="); ++ for (i = 0; i < 6; i++) { ++ dev->dev_addr[i] = mac_addr[i]; ++ printk("%02X%c", dev->dev_addr[i], (i == 5) ? ('\n') : (':')); ++ } ++ return 0; ++} ++ ++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"); ++ |