From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- drivers/net/ethernet/8390/mcf8390.c | 471 ++++++++++++++++++++++++++++++++++++ 1 file changed, 471 insertions(+) create mode 100644 drivers/net/ethernet/8390/mcf8390.c (limited to 'drivers/net/ethernet/8390/mcf8390.c') diff --git a/drivers/net/ethernet/8390/mcf8390.c b/drivers/net/ethernet/8390/mcf8390.c new file mode 100644 index 000000000..8a7918d33 --- /dev/null +++ b/drivers/net/ethernet/8390/mcf8390.c @@ -0,0 +1,471 @@ +/* + * Support for ColdFire CPU based boards using a NS8390 Ethernet device. + * + * Derived from the many other 8390 drivers. + * + * (C) Copyright 2012, Greg Ungerer + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of the Linux + * distribution for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static const char version[] = + "mcf8390.c: (15-06-2012) Greg Ungerer "; + +#define NE_CMD 0x00 +#define NE_DATAPORT 0x10 /* NatSemi-defined port window offset */ +#define NE_RESET 0x1f /* Issue a read to reset ,a write to clear */ +#define NE_EN0_ISR 0x07 +#define NE_EN0_DCFG 0x0e +#define NE_EN0_RSARLO 0x08 +#define NE_EN0_RSARHI 0x09 +#define NE_EN0_RCNTLO 0x0a +#define NE_EN0_RXCR 0x0c +#define NE_EN0_TXCR 0x0d +#define NE_EN0_RCNTHI 0x0b +#define NE_EN0_IMR 0x0f + +#define NESM_START_PG 0x40 /* First page of TX buffer */ +#define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ + +#ifdef NE2000_ODDOFFSET +/* + * A lot of the ColdFire boards use a separate address region for odd offset + * register addresses. The following functions convert and map as required. + * Note that the data port accesses are treated a little differently, and + * always accessed via the insX/outsX functions. + */ +static inline u32 NE_PTR(u32 addr) +{ + if (addr & 1) + return addr - 1 + NE2000_ODDOFFSET; + return addr; +} + +static inline u32 NE_DATA_PTR(u32 addr) +{ + return addr; +} + +void ei_outb(u32 val, u32 addr) +{ + NE2000_BYTE *rp; + + rp = (NE2000_BYTE *) NE_PTR(addr); + *rp = RSWAP(val); +} + +#define ei_inb ei_inb +u8 ei_inb(u32 addr) +{ + NE2000_BYTE *rp, val; + + rp = (NE2000_BYTE *) NE_PTR(addr); + val = *rp; + return (u8) (RSWAP(val) & 0xff); +} + +void ei_insb(u32 addr, void *vbuf, int len) +{ + NE2000_BYTE *rp, val; + u8 *buf; + + buf = (u8 *) vbuf; + rp = (NE2000_BYTE *) NE_DATA_PTR(addr); + for (; (len > 0); len--) { + val = *rp; + *buf++ = RSWAP(val); + } +} + +void ei_insw(u32 addr, void *vbuf, int len) +{ + volatile u16 *rp; + u16 w, *buf; + + buf = (u16 *) vbuf; + rp = (volatile u16 *) NE_DATA_PTR(addr); + for (; (len > 0); len--) { + w = *rp; + *buf++ = BSWAP(w); + } +} + +void ei_outsb(u32 addr, const void *vbuf, int len) +{ + NE2000_BYTE *rp, val; + u8 *buf; + + buf = (u8 *) vbuf; + rp = (NE2000_BYTE *) NE_DATA_PTR(addr); + for (; (len > 0); len--) { + val = *buf++; + *rp = RSWAP(val); + } +} + +void ei_outsw(u32 addr, const void *vbuf, int len) +{ + volatile u16 *rp; + u16 w, *buf; + + buf = (u16 *) vbuf; + rp = (volatile u16 *) NE_DATA_PTR(addr); + for (; (len > 0); len--) { + w = *buf++; + *rp = BSWAP(w); + } +} + +#else /* !NE2000_ODDOFFSET */ + +#define ei_inb inb +#define ei_outb outb +#define ei_insb insb +#define ei_insw insw +#define ei_outsb outsb +#define ei_outsw outsw + +#endif /* !NE2000_ODDOFFSET */ + +#define ei_inb_p ei_inb +#define ei_outb_p ei_outb + +#include "lib8390.c" + +/* + * Hard reset the card. This used to pause for the same period that a + * 8390 reset command required, but that shouldn't be necessary. + */ +static void mcf8390_reset_8390(struct net_device *dev) +{ + unsigned long reset_start_time = jiffies; + u32 addr = dev->base_addr; + struct ei_device *ei_local = netdev_priv(dev); + + netif_dbg(ei_local, hw, dev, "resetting the 8390 t=%ld...\n", jiffies); + + ei_outb(ei_inb(addr + NE_RESET), addr + NE_RESET); + + ei_status.txing = 0; + ei_status.dmaing = 0; + + /* This check _should_not_ be necessary, omit eventually. */ + while ((ei_inb(addr + NE_EN0_ISR) & ENISR_RESET) == 0) { + if (time_after(jiffies, reset_start_time + 2 * HZ / 100)) { + netdev_warn(dev, "%s: did not complete\n", __func__); + break; + } + } + + ei_outb(ENISR_RESET, addr + NE_EN0_ISR); +} + +/* + * This *shouldn't* happen. + * If it does, it's the last thing you'll see + */ +static void mcf8390_dmaing_err(const char *func, struct net_device *dev, + struct ei_device *ei_local) +{ + netdev_err(dev, "%s: DMAing conflict [DMAstat:%d][irqlock:%d]\n", + func, ei_local->dmaing, ei_local->irqlock); +} + +/* + * Grab the 8390 specific header. Similar to the block_input routine, but + * we don't need to be concerned with ring wrap as the header will be at + * the start of a page, so we optimize accordingly. + */ +static void mcf8390_get_8390_hdr(struct net_device *dev, + struct e8390_pkt_hdr *hdr, int ring_page) +{ + struct ei_device *ei_local = netdev_priv(dev); + u32 addr = dev->base_addr; + + if (ei_local->dmaing) { + mcf8390_dmaing_err(__func__, dev, ei_local); + return; + } + + ei_local->dmaing |= 0x01; + ei_outb(E8390_NODMA + E8390_PAGE0 + E8390_START, addr + NE_CMD); + ei_outb(ENISR_RDC, addr + NE_EN0_ISR); + ei_outb(sizeof(struct e8390_pkt_hdr), addr + NE_EN0_RCNTLO); + ei_outb(0, addr + NE_EN0_RCNTHI); + ei_outb(0, addr + NE_EN0_RSARLO); /* On page boundary */ + ei_outb(ring_page, addr + NE_EN0_RSARHI); + ei_outb(E8390_RREAD + E8390_START, addr + NE_CMD); + + ei_insw(addr + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr) >> 1); + + outb(ENISR_RDC, addr + NE_EN0_ISR); /* Ack intr */ + ei_local->dmaing &= ~0x01; + + hdr->count = cpu_to_le16(hdr->count); +} + +/* + * Block input and output, similar to the Crynwr packet driver. + * If you are porting to a new ethercard, look at the packet driver source + * for hints. The NEx000 doesn't share the on-board packet memory -- + * you have to put the packet out through the "remote DMA" dataport + * using z_writeb. + */ +static void mcf8390_block_input(struct net_device *dev, int count, + struct sk_buff *skb, int ring_offset) +{ + struct ei_device *ei_local = netdev_priv(dev); + u32 addr = dev->base_addr; + char *buf = skb->data; + + if (ei_local->dmaing) { + mcf8390_dmaing_err(__func__, dev, ei_local); + return; + } + + ei_local->dmaing |= 0x01; + ei_outb(E8390_NODMA + E8390_PAGE0 + E8390_START, addr + NE_CMD); + ei_outb(ENISR_RDC, addr + NE_EN0_ISR); + ei_outb(count & 0xff, addr + NE_EN0_RCNTLO); + ei_outb(count >> 8, addr + NE_EN0_RCNTHI); + ei_outb(ring_offset & 0xff, addr + NE_EN0_RSARLO); + ei_outb(ring_offset >> 8, addr + NE_EN0_RSARHI); + ei_outb(E8390_RREAD + E8390_START, addr + NE_CMD); + + ei_insw(addr + NE_DATAPORT, buf, count >> 1); + if (count & 1) + buf[count - 1] = ei_inb(addr + NE_DATAPORT); + + ei_outb(ENISR_RDC, addr + NE_EN0_ISR); /* Ack intr */ + ei_local->dmaing &= ~0x01; +} + +static void mcf8390_block_output(struct net_device *dev, int count, + const unsigned char *buf, + const int start_page) +{ + struct ei_device *ei_local = netdev_priv(dev); + u32 addr = dev->base_addr; + unsigned long dma_start; + + /* Make sure we transfer all bytes if 16bit IO writes */ + if (count & 0x1) + count++; + + if (ei_local->dmaing) { + mcf8390_dmaing_err(__func__, dev, ei_local); + return; + } + + ei_local->dmaing |= 0x01; + /* We should already be in page 0, but to be safe... */ + ei_outb(E8390_PAGE0 + E8390_START + E8390_NODMA, addr + NE_CMD); + + ei_outb(ENISR_RDC, addr + NE_EN0_ISR); + + /* Now the normal output. */ + ei_outb(count & 0xff, addr + NE_EN0_RCNTLO); + ei_outb(count >> 8, addr + NE_EN0_RCNTHI); + ei_outb(0x00, addr + NE_EN0_RSARLO); + ei_outb(start_page, addr + NE_EN0_RSARHI); + ei_outb(E8390_RWRITE + E8390_START, addr + NE_CMD); + + ei_outsw(addr + NE_DATAPORT, buf, count >> 1); + + dma_start = jiffies; + while ((ei_inb(addr + NE_EN0_ISR) & ENISR_RDC) == 0) { + if (time_after(jiffies, dma_start + 2 * HZ / 100)) { /* 20ms */ + netdev_warn(dev, "timeout waiting for Tx RDC\n"); + mcf8390_reset_8390(dev); + __NS8390_init(dev, 1); + break; + } + } + + ei_outb(ENISR_RDC, addr + NE_EN0_ISR); /* Ack intr */ + ei_local->dmaing &= ~0x01; +} + +static const struct net_device_ops mcf8390_netdev_ops = { + .ndo_open = __ei_open, + .ndo_stop = __ei_close, + .ndo_start_xmit = __ei_start_xmit, + .ndo_tx_timeout = __ei_tx_timeout, + .ndo_get_stats = __ei_get_stats, + .ndo_set_rx_mode = __ei_set_multicast_list, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = eth_mac_addr, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = __ei_poll, +#endif +}; + +static int mcf8390_init(struct net_device *dev) +{ + static u32 offsets[] = { + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, + 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, + }; + struct ei_device *ei_local = netdev_priv(dev); + unsigned char SA_prom[32]; + u32 addr = dev->base_addr; + int start_page, stop_page; + int i, ret; + + mcf8390_reset_8390(dev); + + /* + * Read the 16 bytes of station address PROM. + * We must first initialize registers, + * similar to NS8390_init(eifdev, 0). + * We can't reliably read the SAPROM address without this. + * (I learned the hard way!). + */ + { + static const struct { + u32 value; + u32 offset; + } program_seq[] = { + {E8390_NODMA + E8390_PAGE0 + E8390_STOP, NE_CMD}, + /* Select page 0 */ + {0x48, NE_EN0_DCFG}, /* 0x48: Set byte-wide access */ + {0x00, NE_EN0_RCNTLO}, /* Clear the count regs */ + {0x00, NE_EN0_RCNTHI}, + {0x00, NE_EN0_IMR}, /* Mask completion irq */ + {0xFF, NE_EN0_ISR}, + {E8390_RXOFF, NE_EN0_RXCR}, /* 0x20 Set to monitor */ + {E8390_TXOFF, NE_EN0_TXCR}, /* 0x02 and loopback mode */ + {32, NE_EN0_RCNTLO}, + {0x00, NE_EN0_RCNTHI}, + {0x00, NE_EN0_RSARLO}, /* DMA starting at 0x0000 */ + {0x00, NE_EN0_RSARHI}, + {E8390_RREAD + E8390_START, NE_CMD}, + }; + for (i = 0; i < ARRAY_SIZE(program_seq); i++) { + ei_outb(program_seq[i].value, + addr + program_seq[i].offset); + } + } + + for (i = 0; i < 16; i++) { + SA_prom[i] = ei_inb(addr + NE_DATAPORT); + ei_inb(addr + NE_DATAPORT); + } + + /* We must set the 8390 for word mode. */ + ei_outb(0x49, addr + NE_EN0_DCFG); + start_page = NESM_START_PG; + stop_page = NESM_STOP_PG; + + /* Install the Interrupt handler */ + ret = request_irq(dev->irq, __ei_interrupt, 0, dev->name, dev); + if (ret) + return ret; + + eth_hw_addr_set(dev, SA_prom); + + netdev_dbg(dev, "Found ethernet address: %pM\n", dev->dev_addr); + + ei_local->name = "mcf8390"; + ei_local->tx_start_page = start_page; + ei_local->stop_page = stop_page; + ei_local->word16 = 1; + ei_local->rx_start_page = start_page + TX_PAGES; + ei_local->reset_8390 = mcf8390_reset_8390; + ei_local->block_input = mcf8390_block_input; + ei_local->block_output = mcf8390_block_output; + ei_local->get_8390_hdr = mcf8390_get_8390_hdr; + ei_local->reg_offset = offsets; + + dev->netdev_ops = &mcf8390_netdev_ops; + __NS8390_init(dev, 0); + ret = register_netdev(dev); + if (ret) { + free_irq(dev->irq, dev); + return ret; + } + + netdev_info(dev, "addr=0x%08x irq=%d, Ethernet Address %pM\n", + addr, dev->irq, dev->dev_addr); + return 0; +} + +static int mcf8390_probe(struct platform_device *pdev) +{ + struct net_device *dev; + struct resource *mem; + resource_size_t msize; + int ret, irq; + + irq = platform_get_irq(pdev, 0); + if (irq < 0) + return -ENXIO; + + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (mem == NULL) { + dev_err(&pdev->dev, "no memory address specified?\n"); + return -ENXIO; + } + msize = resource_size(mem); + if (!request_mem_region(mem->start, msize, pdev->name)) + return -EBUSY; + + dev = ____alloc_ei_netdev(0); + if (dev == NULL) { + release_mem_region(mem->start, msize); + return -ENOMEM; + } + + SET_NETDEV_DEV(dev, &pdev->dev); + platform_set_drvdata(pdev, dev); + + dev->irq = irq; + dev->base_addr = mem->start; + + ret = mcf8390_init(dev); + if (ret) { + release_mem_region(mem->start, msize); + free_netdev(dev); + return ret; + } + return 0; +} + +static int mcf8390_remove(struct platform_device *pdev) +{ + struct net_device *dev = platform_get_drvdata(pdev); + struct resource *mem; + + unregister_netdev(dev); + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + release_mem_region(mem->start, resource_size(mem)); + free_netdev(dev); + return 0; +} + +static struct platform_driver mcf8390_drv = { + .driver = { + .name = "mcf8390", + }, + .probe = mcf8390_probe, + .remove = mcf8390_remove, +}; + +module_platform_driver(mcf8390_drv); + +MODULE_DESCRIPTION("MCF8390 ColdFire NS8390 driver"); +MODULE_AUTHOR("Greg Ungerer "); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:mcf8390"); -- cgit v1.2.3