IP-Config: Device `eth0' not found.VFS: Unable to mount root fs via NFS, trying floppy. VFS: Cannot open root device "nfs" or unknown-block(2,0)

QingboGuo

Prodigy 200 points

Other Parts Discussed in Thread: ADS7846

bootm 0x82000000

## Booting kernel from Legacy Image at 82000000 ...

Image Name: Linux-2.6.37

Image Type: ARM Linux Kernel Image (uncompressed)

Data Size: 3236568 Bytes = 3.1 MiB

Load Address: 80008000

Entry Point: 80008000

Verifying Checksum ... OK

Loading Kernel Image ... OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.

[ 0.000000] Linux version 2.6.37 (ss@ubuntu10) (gcc version 4.3.3 (Sourcery G++ Lite 2009q1-203) ) #1 Wed Oct 24 14:38:18 CST 2012

[ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c53c7f

[ 0.000000] CPU: VIPT nonaliasing data cache, VIPT aliasing instruction cache

[ 0.000000] Machine: OMAP3 EVM

[ 0.000000] Reserving 4194304 bytes SDRAM for VRAM

[ 0.000000] Memory policy: ECC disabled, Data cache writeback

[ 0.000000] OMAP3630 ES1.2 (l2cache iva sgx neon isp 192mhz_clk )

[ 0.000000] SRAM: Mapped pa 0x40200000 to va 0xfe400000 size: 0x10000

[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 64000

[ 0.000000] Kernel command line: console=ttyO0,115200n8 mem=256M root=/dev/nfs noinitrd rw nwhwconf=device:eth0,hwaddr:02:00:05:38:00:02 nfsroot=10.2.7.96:/home/ss/targetfs,tcp,nolock ip=10.2.7.97:10.2.7.96:10.2.7.1:255.255.255.0::eth0:off

[ 0.000000] PID hash table entries: 1024 (order: 0, 4096 bytes)

[ 0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)

[ 0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)

[ 0.000000] Memory: 252MB = 252MB total

[ 0.000000] Memory: 243196k/243196k available, 18948k reserved, 0K highmem

[ 0.000000] Virtual kernel memory layout:

[ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)

[ 0.000000] fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)

[ 0.000000] DMA : 0xffc00000 - 0xffe00000 ( 2 MB)

[ 0.000000] vmalloc : 0xd0800000 - 0xf8000000 ( 632 MB)

[ 0.000000] lowmem : 0xc0000000 - 0xd0000000 ( 256 MB)

[ 0.000000] modules : 0xbf000000 - 0xc0000000 ( 16 MB)

[ 0.000000] .init : 0xc0008000 - 0xc003c000 ( 208 kB)

[ 0.000000] .text : 0xc003c000 - 0xc05fc9a4 (5891 kB)

[ 0.000000] .data : 0xc05fe000 - 0xc07c0520 (1802 kB)

[ 0.000000] NR_IRQS:409

[ 0.000000] Clocking rate (Crystal/Core/MPU): 26.0/400/1000 MHz

[ 0.000000] omap_hwmod: i2c1: softreset failed (waited 10000 usec)

[ 0.000000] omap_hwmod: i2c2: softreset failed (waited 10000 usec)

[ 0.000000] omap_hwmod: i2c3: softreset failed (waited 10000 usec)

[ 0.000000] Reprogramming SDRC clock to 400000000 Hz

[ 0.000000] IRQ: Found an INTC at 0xfa200000 (revision 4.0) with 96 interrupts

[ 0.000000] Total of 96 interrupts on 1 active controller

[ 0.000000] GPMC revision 5.0

[ 0.000000] Trying to install interrupt handler for IRQ402

[ 0.000000] Trying to install interrupt handler for IRQ403

[ 0.000000] Trying to install interrupt handler for IRQ404

[ 0.000000] Trying to install interrupt handler for IRQ405

[ 0.000000] Trying to install interrupt handler for IRQ406

[ 0.000000] Trying to install interrupt handler for IRQ407

[ 0.000000] Trying to install interrupt handler for IRQ408

[ 0.000000] Trying to install type control for IRQ409

[ 0.000000] Trying to set irq flags for IRQ409

[ 0.000000] OMAP clockevent source: GPTIMER1 at 32768 Hz

[ 0.000000] Console: colour dummy device 80x30

[ 0.000000] ... MAX_LOCKDEP_SUBCLASSES: 8

[ 0.000000] ... MAX_LOCK_DEPTH: 48

[ 0.000000] ... MAX_LOCKDEP_KEYS: 8191

[ 0.000000] ... CLASSHASH_SIZE: 4096

[ 0.000000] ... MAX_LOCKDEP_ENTRIES: 16384

[ 0.000000] ... MAX_LOCKDEP_CHAINS: 32768

[ 0.000000] ... CHAINHASH_SIZE: 16384

[ 0.000000] memory used by lock dependency info: 3935 kB

[ 0.000000] per task-struct memory footprint: 2304 bytes

[ 0.000000] Calibrating delay loop... 998.84 BogoMIPS (lpj=3899392)

[ 0.000000] pid_max: default: 32768 minimum: 301

[ 0.000000] Security Framework initialized

[ 0.000000] Mount-cache hash table entries: 512

[ 0.000000] CPU: Testing write buffer coherency: ok

[ 0.000000] regulator: core version 0.5

[ 0.000000] regulator: dummy:

[ 0.000000] NET: Registered protocol family 16

[ 0.000000] OMAP GPIO hardware version 2.5

[ 0.000000] omap_mux_init: Add partition: #1: core, flags: 0

[ 0.000000] hw-breakpoint: debug architecture 0x4 unsupported.

[ 0.000000] OMAP DMA hardware revision 5.0

[ 0.063385] bio: create slab <bio-0> at 0

[ 0.066009] regulator: vwl1271: 1800 mV

[ 0.069000] SCSI subsystem initialized

[ 0.075286] usbcore: registered new interface driver usbfs

[ 0.076019] usbcore: registered new interface driver hub

[ 0.076629] usbcore: registered new device driver usb

[ 0.088745] omap_i2c omap_i2c.1: bus 1 rev4.0 at 2600 kHz

[ 0.094299] twl4030: PIH (irq 7) chaining IRQs 368..375

[ 0.094421] twl4030: power (irq 373) chaining IRQs 376..383

[ 0.095642] twl4030: gpio (irq 368) chaining IRQs 384..401

[ 0.104797] regulator: VIO: 1800 mV normal standby

[ 0.106201] regulator: VMMC1: 1850 <--> 3150 mV at 3000 mV normal standby

[ 0.107574] regulator: VDAC: 1800 mV normal standby

[ 0.108947] regulator: VAUX2_4030: 2800 mV normal standby

[ 0.110321] regulator: VPLL2: 1800 mV normal standby

[ 0.111694] regulator: VSIM: 1800 <--> 3000 mV at 1800 mV normal standby

[ 0.113159] regulator: VAUX3: 2800 mV normal standby

[ 0.113922] omap_device: omap_i2c.2: new worst case activate latency 0: 30517

[ 0.114013] omap_i2c omap_i2c.2: bus 2 rev4.0 at 400 kHz

[ 0.127746] omap_i2c omap_i2c.3: bus 3 rev4.0 at 400 kHz

[ 0.131164] Advanced Linux Sound Architecture Driver Version 1.0.23.

[ 0.132812] Bluetooth: Core ver 2.15

[ 0.133270] NET: Registered protocol family 31

[ 0.133270] Bluetooth: HCI device and connection manager initialized

[ 0.133361] Bluetooth: HCI socket layer initialized

[ 0.134368] Switching to clocksource 32k_counter

[ 0.201934] musb-hdrc: version 6.0, otg (peripheral+host), debug=0

[ 0.202178] musb-hdrc musb-hdrc.0: dma type: dma-inventra

[ 0.202667] musb-hdrc musb-hdrc.0: USB OTG mode controller at fa0ab000 using DMA, IRQ 92

[ 0.203643] NET: Registered protocol family 2

[ 0.204010] IP route cache hash table entries: 2048 (order: 1, 8192 bytes)

[ 0.204742] TCP established hash table entries: 8192 (order: 4, 65536 bytes)

[ 0.205108] TCP bind hash table entries: 8192 (order: 6, 360448 bytes)

[ 0.206390] TCP: Hash tables configured (established 8192 bind 8192)

[ 0.206420] TCP reno registered

[ 0.206420] UDP hash table entries: 128 (order: 1, 12288 bytes)

[ 0.206542] UDP-Lite hash table entries: 128 (order: 1, 12288 bytes)

[ 0.207031] NET: Registered protocol family 1

[ 0.207763] RPC: Registered udp transport module.

[ 0.207794] RPC: Registered tcp transport module.

[ 0.207794] RPC: Registered tcp NFSv4.1 backchannel transport module.

[ 0.208282] NetWinder Floating Point Emulator V0.97 (double precision)

[ 0.212188] omap3evm camera init done successfully...

[ 0.212707] omap-iommu omap-iommu.0: isp registered

[ 0.213195] AM37x/DM37x Linux PSP version 04.02.00.07 (OMAP3EVM)

[ 0.315673] VFS: Disk quotas dquot_6.5.2

[ 0.315734] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)

[ 0.317565] msgmni has been set to 474

[ 0.320556] io scheduler noop registered

[ 0.320556] io scheduler deadline registered

[ 0.320678] io scheduler cfq registered (default)

[ 0.384765] OMAP DSS rev 2.0

[ 0.384948] OMAP DISPC rev 3.0

[ 0.385009] OMAP VENC rev 2

[ 0.385620] OMAP DSI rev 1.0

[ 0.715148] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled

[ 0.719238] omap_uart.0: ttyO0 at MMIO 0x4806a000 (irq = 72) is a OMAP UART0

[ 1.450347] console [ttyO0] enabled

[ 1.454803] omap_uart.1: ttyO1 at MMIO 0x4806c000 (irq = 73) is a OMAP UART1

[ 1.462982] omap_uart.2: ttyO2 at MMIO 0x49020000 (irq = 74) is a OMAP UART2

[ 1.471099] omap_uart.3: ttyO3 at MMIO 0x49042000 (irq = 80) is a OMAP UART3

[ 1.502593] brd: module loaded

[ 1.517303] loop: module loaded

[ 1.525543] mtdoops: mtd device (mtddev=name/number) must be supplied

[ 1.532318] omap2-nand driver initializing

[ 1.537109] NAND device: Manufacturer ID: 0xad, Chip ID: 0xbc (Hynix )

[ 1.544006] Creating 5 MTD partitions on "omap2-nand.0":

[ 1.549591] 0x000000000000-0x000000080000 : "X-Loader-NAND"

[ 1.559570] 0x000000080000-0x0000001c0000 : "U-Boot-NAND"

[ 1.569061] 0x0000001c0000-0x000000280000 : "Boot Env-NAND"

[ 1.578430] 0x000000280000-0x000000780000 : "Kernel-NAND"

[ 1.589508] 0x000000780000-0x000020000000 : "File System - NAND"

[ 1.831451] OneNAND driver initializing

[ 1.835632] omap2-onenand omap2-onenand: Cannot request GPMC CS

[ 1.841979] omap2-onenand: probe of omap2-onenand failed with error -16

[ 1.851257] smsc911x: Driver version 2008-10-21.

[ 1.859588] smsc911x-mdio: probed

[ 1.863403] eth0: attached PHY driver [SMSC LAN8700] (mii_bus:phy_addr=ffffffff:01, irq=-1)

[ 1.872558] net eth0: MAC Address: d6:67:69:6c:82:c3

[ 1.878723] usbcore: registered new interface driver asix

[ 1.884796] usbcore: registered new interface driver cdc_ether

[ 1.891265] usbcore: registered new interface driver net1080

[ 1.897583] usbcore: registered new interface driver cdc_subset

[ 1.904174] usbcore: registered new interface driver zaurus

[ 1.910064] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver

[ 2.923583] ehci-omap ehci-omap.0: OMAP-EHCI Host Controller

[ 2.929962] ehci-omap ehci-omap.0: new USB bus registered, assigned bus number 1

[ 2.938018] ehci-omap ehci-omap.0: irq 77, io mem 0x48064800

[ 2.954895] ehci-omap ehci-omap.0: USB 2.0 started, EHCI 1.00

[ 2.961242] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002

[ 2.968383] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1

[ 2.975952] usb usb1: Product: OMAP-EHCI Host Controller

[ 2.981536] usb usb1: Manufacturer: Linux 2.6.37 ehci_hcd

[ 2.987213] usb usb1: SerialNumber: ehci-omap.0

[ 2.994110] hub 1-0:1.0: USB hub found

[ 2.998077] hub 1-0:1.0: 3 ports detected

[ 3.033538] Initializing USB Mass Storage driver...

[ 3.039123] usbcore: registered new interface driver usb-storage

[ 3.045440] USB Mass Storage support registered.

[ 3.050781] usbcore: registered new interface driver usbtest

[ 3.056823] g_ether gadget: using random self ethernet address

[ 3.062927] g_ether gadget: using random host ethernet address

[ 3.070098] usb0: MAC fa:33:b1:a6:a4:a9

[ 3.074157] usb0: HOST MAC 3a:90:03:36:c4:12

[ 3.078674] g_ether gadget: Ethernet Gadget, version: Memorial Day 2008

[ 3.085632] g_ether gadget: g_ether ready

[ 3.089874] musb-hdrc musb-hdrc.0: MUSB HDRC host driver

[ 3.095550] musb-hdrc musb-hdrc.0: new USB bus registered, assigned bus number 2

[ 3.103881] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002

[ 3.110961] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1

[ 3.118560] usb usb2: Product: MUSB HDRC host driver

[ 3.123779] usb usb2: Manufacturer: Linux 2.6.37 musb-hcd

[ 3.129455] usb usb2: SerialNumber: musb-hdrc.0

[ 3.135986] hub 2-0:1.0: USB hub found

[ 3.139923] hub 2-0:1.0: 1 port detected

[ 3.146759] mice: PS/2 mouse device common for all mice

[ 3.154296] input: TWL4030 Keypad as /devices/platform/omap/omap_i2c.1/i2c-1/1-004a/twl4030_keypad/input/input0

[ 3.169219] omap_device: omap_i2c.1: new worst case deactivate latency 0: 30517

[ 3.178131] ads7846 spi1.0: touchscreen, irq 335

[ 3.184326] input: ADS7846 Touchscreen as /devices/platform/omap2_mcspi.1/spi1.0/input/input1

[ 3.197082] omap_device: omap_i2c.1: new worst case deactivate latency 0: 61035

[ 3.204895] input: twl4030_pwrbutton as /devices/platform/omap/omap_i2c.1/i2c-1/1-0049/twl4030_pwrbutton/input/input2

[ 3.218627] twl_rtc twl_rtc: rtc core: registered twl_rtc as rtc0

[ 3.227905] i2c /dev entries driver

[ 3.234527] Linux media interface: v0.10

[ 3.239074] Linux video capture interface: v2.00

[ 3.245483] omap3isp supply VDD_CSIPHY1 not found, using dummy regulator

[ 3.252563] omap3isp supply VDD_CSIPHY2 not found, using dummy regulator

[ 3.259857] omap3isp omap3isp: Revision 15.0 found

[ 3.265014] omap-iommu omap-iommu.0: isp: version 1.1

[ 3.334747] mt9t111 2-003c: Unable to detectmt9t111sensor

[ 3.340576] usb 1-2: new high speed USB device using ehci-omap and address 2

[ 3.351531] isp_register_subdev_group: Unable to register subdev mt9t111

[ 3.359649] tvp514x 3-005c: tvp514x 3-005c decoder driver registered !!

[ 3.367675] tvp514x 3-005c: Write: retry ... 0

[ 3.392822] tvp514x 3-005c: Write: retry ... 1

[ 3.416137] tvp514x 3-005c: Write: retry ... 2

[ 3.439666] tvp514x 3-005c: Write: retry ... 3

[ 3.462921] tvp514x 3-005c: Write: retry ... 4

[ 3.486419] tvp514x 3-005c: Write: retry ... 5

[ 3.502319] usb 1-2: New USB device found, idVendor=0409, idProduct=005a

[ 3.509307] usb 1-2: New USB device strings: Mfr=0, Product=0, SerialNumber=0

[ 3.517730] tvp514x 3-005c: Write failed. Err[-121]

[ 3.522827] tvp514x 3-005c: Unable to turn on decoder

[ 3.528656] tvp514x 3-005c: Read: retry ... 0

[ 3.533996] hub 1-2:1.0: USB hub found

[ 3.538055] hub 1-2:1.0: 4 ports detected

[ 3.556915] tvp514x 3-005c: Read: retry ... 1

[ 3.580322] tvp514x 3-005c: Read: retry ... 2

[ 3.603729] tvp514x 3-005c: Read: retry ... 3

[ 3.627166] tvp514x 3-005c: Read: retry ... 4

[ 3.650329] tvp514x 3-005c: Read: retry ... 5

[ 3.674041] tvp514x 3-005c: Unable to query std

[ 3.679748] usbcore: registered new interface driver uvcvideo

[ 3.685791] USB Video Class driver (v1.0.0)

[ 3.690429] omap_device: omap_wdt.-1: new worst case activate latency 0: 30517

[ 3.698974] OMAP Watchdog Timer Rev 0x31: initial timeout 60 sec

[ 3.705413] omap_device: omap_wdt.-1: new worst case deactivate latency 0: 30517

[ 3.713592] Bluetooth: HCI UART driver ver 2.2

[ 3.718261] Bluetooth: HCI H4 protocol initialized

[ 3.723297] Bluetooth: HCILL protocol initialized

[ 3.734344] mmci-omap-hs.1 supply vmmc_aux not found, using dummy regulator

[ 3.746368] usbcore: registered new interface driver usbhid

[ 3.752258] usbhid: USB HID core driver

[ 3.757965] usbcore: registered new interface driver snd-usb-audio

[ 3.767272] OMAP3 EVM SoC init

[ 3.847778] asoc: twl4030-hifi <-> omap-mcbsp-dai.1 mapping ok

[ 3.856842] ALSA device list:

[ 3.859954] #0: omap3evm

[ 3.862823] oprofile: hardware counters not available

[ 3.868103] oprofile: using timer interrupt.

[ 3.872741] nf_conntrack version 0.5.0 (3799 buckets, 15196 max)

[ 3.885925] TCP cubic registered

[ 3.889282] Initializing XFRM netlink socket

[ 3.894012] NET: Registered protocol family 17

[ 3.898712] NET: Registered protocol family 15

[ 3.903930] Bluetooth: L2CAP ver 2.15

[ 3.907745] Bluetooth: L2CAP socket layer initialized

[ 3.913116] Bluetooth: SCO (Voice Link) ver 0.6

[ 3.917877] Bluetooth: SCO socket layer initialized

[ 3.923248] Bluetooth: RFCOMM TTY layer initialized

[ 3.928436] Bluetooth: RFCOMM socket layer initialized

[ 3.933868] Bluetooth: RFCOMM ver 1.11

[ 3.937774] Bluetooth: BNEP (Ethernet Emulation) ver 1.3

[ 3.943359] Bluetooth: BNEP filters: protocol multicast

[ 3.948852] Bluetooth: HIDP (Human Interface Emulation) ver 1.2

[ 3.956207] Registering the dns_resolver key type

[ 3.961425] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3

[ 3.970581] ThumbEE CPU extension supported.

[ 3.987548] Power Management for TI OMAP3.

[ 3.992370] sr_init: No PMIC hook to init smartreflex

[ 3.998016] smartreflex smartreflex.0: omap_sr_probe: SmartReflex driver initialized

[ 4.006530] smartreflex smartreflex.1: omap_sr_probe: SmartReflex driver initialized

[ 4.015441] SmartReflex Class3 initialized

[ 4.044128] clock: disabling unused clocks to save power

[ 4.051055] platform mpu.0: omap_voltage_scale: Already at the requestedrate 1000000000

[ 4.137237] twl_rtc twl_rtc: setting system clock to 2000-01-01 00:15:00 UTC (946685700)

[ 4.145996] omap_vout omap_vout: Buffer Size = 3686400

[ 4.153015] omap_vout omap_vout: : registered and initialized video device 16

[ 4.160552] omap_vout omap_vout: Buffer Size = 3686400

[ 4.167449] omap_vout omap_vout: : registered and initialized video device 17

[ 4.197174] mmc0: new high speed SDHC card at address 1234

[ 4.203887] mmcblk0: mmc0:1234 SA04G 3.63 GiB (ro)

[ 4.212829] mmcblk0: p1 p2

[ 20.306427] net eth0: ISR failed signaling test (IRQ 336)

[ 20.312072] IP-Config: Failed to open eth0

[ 20.316375] IP-Config: Device `eth0' not found.

[ 80.548828] VFS: Unable to mount root fs via NFS, trying floppy.

[ 80.556579] VFS: Cannot open root device "nfs" or unknown-block(2,0)

[ 80.563201] Please append a correct "root=" boot option; here are the available partitions:

[ 80.572052] 1f00 512 mtdblock0 (driver?)

[ 80.577362] 1f01 1280 mtdblock1 (driver?)

[ 80.582824] 1f02 768 mtdblock2 (driver?)

[ 80.588134] 1f03 5120 mtdblock3 (driver?)

[ 80.593414] 1f04 516608 mtdblock4 (driver?)

[ 80.598754] b300 3813376 mmcblk0 driver: mmcblk

[ 80.604339] b301 40131 mmcblk0p1 00000000-0000-0000-0000-000000000mmcblk0p1

[ 80.612731] b302 3767242 mmcblk0p2 00000000-0000-0000-0000-000000000mmcblk0p2

[ 80.621154] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)

[ 80.629852] [<c004c2d8>] (unwind_backtrace+0x0/0xec) from [<c044d9ac>] (panic+0x54/0x17c)

[ 80.638427] [<c044d9ac>] (panic+0x54/0x17c) from [<c0009154>] (mount_block_root+0x1d0/0x210)

[ 80.647277] [<c0009154>] (mount_block_root+0x1d0/0x210) from [<c0009234>] (mount_root+0xa0/0xbc)

[ 80.656494] [<c0009234>] (mount_root+0xa0/0xbc) from [<c00093b4>] (prepare_namespace+0x164/0x1bc)

[ 80.665802] [<c00093b4>] (prepare_namespace+0x164/0x1bc) from [<c0008708>] (kernel_init+0x10c/0x14c)

[ 80.675506] [<c0008708>] (kernel_init+0x10c/0x14c) from [<c004754c>] (kernel_thread_exit+0x0/0x8)

遇到的问题非常奇怪，使用DVSDK4.03时，用uboot-2009引导Linux2.6.37通过nfs引导文件系统能正常挂载，但使用uboot-2010引导linux2.6.37通过nfs文件系统则出现上面错误，bootargs='console=ttyO0,115200n8 mem=256M root=/dev/nfs noinitrd rw nwhwconf=device:eth0,hwaddr:02:00:05:38:00:02 nfsroot=10.2.7.96:/home/ss/targetfs,tcp,nolock ip=10.2.7.97:10.2.7.96:10.2.7.1:255.255.255.0::eth0:off"。请专家看看是什么问题，是不是标记为红色几行的问题呢？如何解决？

12 年多前

0 Eason Wang 12 年多前

TI__Mastermind 46761 points

bootargs 里面，ip改dhcp试试，

0 QingboGuo 12 年多前

Prodigy 200 points

改成ip=DHCP也是不管用，net eth0: ISR failed signaling test (IRQ 336)这句，smsc911x.c里面的标红一行中断测试失败，但我不知原因是什么，u-boot2009则可以正常引导，请专家指点。

static int smsc911x_open(struct net_device *dev)

{

struct smsc911x_data *pdata = netdev_priv(dev);

unsigned int timeout;

unsigned int temp;

unsigned int intcfg;

/* if the phy is not yet registered, retry later*/

if (!pdata->phy_dev) {

SMSC_WARNING(HW, "phy_dev is NULL");

return -EAGAIN;

}

if (!is_valid_ether_addr(dev->dev_addr)) {

SMSC_WARNING(HW, "dev_addr is not a valid MAC address");

return -EADDRNOTAVAIL;

}

* WORKAROUND: Somehow SMSC soft reset is failing with latest version

* of EVM's where the reset line is completely dis-connected.

#if 0

/* Reset the LAN911x */

if (smsc911x_soft_reset(pdata)) {

SMSC_WARNING(HW, "soft reset failed");

return -EIO;

}

#endif

smsc911x_reg_write(pdata, HW_CFG, 0x00050000);

smsc911x_reg_write(pdata, AFC_CFG, 0x006E3740);

/* Make sure EEPROM has finished loading before setting GPIO_CFG */

timeout = 50;

while ((smsc911x_reg_read(pdata, E2P_CMD) & E2P_CMD_EPC_BUSY_) &&

--timeout) {

udelay(10);

}

if (unlikely(timeout == 0))

SMSC_WARNING(IFUP,

"Timed out waiting for EEPROM busy bit to clear");

smsc911x_reg_write(pdata, GPIO_CFG, 0x70070000);

/* The soft reset above cleared the device's MAC address,

* restore it from local copy (set in probe) */

spin_lock_irq(&pdata->mac_lock);

smsc911x_set_hw_mac_address(pdata, dev->dev_addr);

spin_unlock_irq(&pdata->mac_lock);

/* Initialise irqs, but leave all sources disabled */

smsc911x_reg_write(pdata, INT_EN, 0);

smsc911x_reg_write(pdata, INT_STS, 0xFFFFFFFF);

/* Set interrupt deassertion to 100uS */

intcfg = ((10 << 24) | INT_CFG_IRQ_EN_);

if (pdata->config.irq_polarity) {

SMSC_TRACE(IFUP, "irq polarity: active high");

intcfg |= INT_CFG_IRQ_POL_;

} else {

SMSC_TRACE(IFUP, "irq polarity: active low");

}

if (pdata->config.irq_type) {

SMSC_TRACE(IFUP, "irq type: push-pull");

intcfg |= INT_CFG_IRQ_TYPE_;

} else {

SMSC_TRACE(IFUP, "irq type: open drain");

}

smsc911x_reg_write(pdata, INT_CFG, intcfg);

SMSC_TRACE(IFUP, "Testing irq handler using IRQ %d", dev->irq);

pdata->software_irq_signal = 0;

smp_wmb();

temp = smsc911x_reg_read(pdata, INT_EN);

temp |= INT_EN_SW_INT_EN_;

smsc911x_reg_write(pdata, INT_EN, temp);

timeout = 1000;

while (timeout--) {

if (pdata->software_irq_signal)

break;

msleep(1);

}

if (!pdata->software_irq_signal) {

dev_warn(&dev->dev, "ISR failed signaling test (IRQ %d)\n",

dev->irq);

return -ENODEV;

}

SMSC_TRACE(IFUP, "IRQ handler passed test using IRQ %d", dev->irq);

dev_info(&dev->dev, "SMSC911x/921x identified at %#08lx, IRQ: %d\n",

(unsigned long)pdata->ioaddr, dev->irq);

/* Reset the last known duplex and carrier */

pdata->last_duplex = -1;

pdata->last_carrier = -1;

/* Bring the PHY up */

phy_start(pdata->phy_dev);

temp = smsc911x_reg_read(pdata, HW_CFG);

/* Preserve TX FIFO size and external PHY configuration */

temp &= (HW_CFG_TX_FIF_SZ_|0x00000FFF);

temp |= HW_CFG_SF_;

smsc911x_reg_write(pdata, HW_CFG, temp);

temp = smsc911x_reg_read(pdata, FIFO_INT);

temp |= FIFO_INT_TX_AVAIL_LEVEL_;

temp &= ~(FIFO_INT_RX_STS_LEVEL_);

smsc911x_reg_write(pdata, FIFO_INT, temp);

/* set RX Data offset to 2 bytes for alignment */

smsc911x_reg_write(pdata, RX_CFG, (2 << 8));

/* enable NAPI polling before enabling RX interrupts */

napi_enable(&pdata->napi);

temp = smsc911x_reg_read(pdata, INT_EN);

temp |= (INT_EN_TDFA_EN_ | INT_EN_RSFL_EN_ | INT_EN_RXSTOP_INT_EN_);

smsc911x_reg_write(pdata, INT_EN, temp);

spin_lock_irq(&pdata->mac_lock);

temp = smsc911x_mac_read(pdata, MAC_CR);

temp |= (MAC_CR_TXEN_ | MAC_CR_RXEN_ | MAC_CR_HBDIS_);

smsc911x_mac_write(pdata, MAC_CR, temp);

spin_unlock_irq(&pdata->mac_lock);

smsc911x_reg_write(pdata, TX_CFG, TX_CFG_TX_ON_);

netif_start_queue(dev);

return 0;

}

0 QingboGuo 12 年多前

Prodigy 200 points

跟代码发现，未进入smsc911x_irqhandler(int irq, void *dev_id)中断服务程序，注册中断服务程序代码为retval = request_irq(dev->irq, smsc911x_irqhandler, irq_flags | IRQF_SHARED, dev->name, dev);不知道哪里有问题？

0 QingboGuo 12 年多前

Prodigy 200 points

问题解决了，原来u-boot2010初始化smsc911x中断引脚时出错了！

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