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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/net/ethernet/8390/mcf8390.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip
Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
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(). ...
Diffstat (limited to 'drivers/net/ethernet/8390/mcf8390.c')
-rw-r--r--drivers/net/ethernet/8390/mcf8390.c471
1 files changed, 471 insertions, 0 deletions
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 <gerg@uclinux.org>
+ *
+ * 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 <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/platform_device.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/jiffies.h>
+#include <linux/io.h>
+#include <asm/mcf8390.h>
+
+static const char version[] =
+ "mcf8390.c: (15-06-2012) Greg Ungerer <gerg@uclinux.org>";
+
+#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 <gerg@uclinux.org>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:mcf8390");