This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
各位好，最近开始做开机优化这块，使用am335x，sdk版本较老，是04.06的。现在总体上开机时间需要将近1分钟了，初步发现开机占用时间较长的是udev这块，在log信息打印到
VFS: Mounted root (ubifs filesystem) on device 0:13. Freeing init memory: 368K udevd (714): /proc/714/oom_adj is deprecated, please use /proc/714/oom_score_adj instead.
这里时，会等待大约13秒左右的时间才会继续向下执行。
第一次弄这块，查了下udev相关的资料还是感觉不知如何下手。希望搞过的前辈能指点指点。。。在此先行谢过!
以下是全部的log信息：
U-Boot SPL 2011.09-00000-g42b75ac-dirty (Aug 27 2015 - 15:16:14)
Texas Instruments Revision detection unimplemented
@@ entry config_am335x_ddr
@@ entry config_vtp
@@ out config_vtp
@@ out config_am335x_ddr
tps65217_reg_read pmic_status_reg 0
tps65217_WLED_switch ON
Booting from NAND...
omap_boot_mode() = 3
nand_spl_load_image(header.size)= 277044
U-Boot 2011.09-00000-g42b75ac-dirty (Aug 27 2015 - 15:16:14)
I2C: ready
Reserving 456k for U-Boot at: 8ff7d000
DRAM: 256 MiB
WARNING: Caches not enabled
Did not find a recognized configuration, assuming General purpose EVM in Profile 0 with Daughter board
audio_en cut off success
audio_shutdown success
Configurou LCD
screen_width = 480, screen_height = 272
bq_i2c_speed = 100000
bq_i2c_num = 2
i2c_probe 0x48 success!
i2c_probe 0x51 success!
Hello,bq27441
bq_i2c_speed = 100000
bq_i2c_num = 0
Design Capacity = 7000
SOC = 88 %
Voltage = 4198 mV
uart5 init ok !
rxbuffer = 0x22
go to start the kernel !
NAND: HW ECC Hamming Code selected
512 MiB
MMC: OMAP SD/MMC: 0
*** Warning - bad CRC, using default environment
Net: cpsw
Hit any key to stop autoboot: 0
Card did not respond to voltage select!
Booting from nand ...
HW ECC BCH8 Selected
NAND read: device 0 offset 0x300000, size 0x500000
5242880 bytes read: OK
## Booting kernel from Legacy Image at 80200000 ...
Image Name: Linux-3.2.0
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 3148296 Bytes = 3 MiB
Load Address: 80008000
Entry Point: 80008000
Verifying Checksum ... OK
Loading Kernel Image ... OK
OK
Starting kernel ...
Uncompressing Linux... done, booting the kernel.
[ 0.000000] Linux version 3.2.0 (djf@djf-vm) (gcc version 4.5.3 20110311 (prerelease) (GCC) ) #5 Tue Aug 25 10:05:21 CST 2015
[ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c53c7d
[ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[ 0.000000] Machine: am335xevm
[ 0.000000] Memory policy: ECC disabled, Data cache writeback
[ 0.000000] AM335X ES1.0 (neon )
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 65024
[ 0.000000] Kernel command line: console=ttyO0,115200n8 root=ubi0:rootfs rw ubi.mtd=7,2048 rootfstype=ubifs rootwait=1 screentype=R screensize=800x480-7
[ 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: 256MB = 256MB total
[ 0.000000] Memory: 253188k/253188k available, 8956k 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] vmalloc : 0xd0800000 - 0xff000000 ( 744 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xd0000000 ( 256 MB)
[ 0.000000] modules : 0xbf000000 - 0xc0000000 ( 16 MB)
[ 0.000000] .text : 0xc0008000 - 0xc059b000 (5708 kB)
[ 0.000000] .init : 0xc059b000 - 0xc05f7000 ( 368 kB)
[ 0.000000] .data : 0xc05f8000 - 0xc0655498 ( 374 kB)
[ 0.000000] .bss : 0xc06554bc - 0xc0682724 ( 181 kB)
[ 0.000000] NR_IRQS:396
[ 0.000000] IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts
[ 0.000000] Total of 128 interrupts on 1 active controller
[ 0.000000] OMAP clockevent source: GPTIMER2 at 24000000 Hz
[ 0.000000] omap_dm_timer_switch_src: Switching to HW default clocksource(sys_clkin_ck) for timer1, this may impact timekeeping in low power state
[ 0.000000] OMAP clocksource: GPTIMER1 at 24000000 Hz
[ 0.000000] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 178956ms
[ 0.000000] Console: colour dummy device 80x30
[ 0.000190] Calibrating delay loop... 718.02 BogoMIPS (lpj=3590144)
[ 0.057155] pid_max: default: 32768 minimum: 301
[ 0.057289] Security Framework initialized
[ 0.057398] Mount-cache hash table entries: 512
[ 0.057789] CPU: Testing write buffer coherency: ok
[ 0.077901] omap_hwmod: gfx: failed to hardreset
[ 0.094171] omap_hwmod: pruss: failed to hardreset
[ 0.095448] print_constraints: dummy:
[ 0.095856] NET: Registered protocol family 16
[ 0.098473] OMAP GPIO hardware version 0.1
[ 0.101588] omap_mux_init: Add partition: #1: core, flags: 0
[ 0.103717] ---ALL---DBG---file=board-am335xevm.c,func=i2c2_init,line=2827++++ Enter board init:i2c2_init
[ 0.103802] omap_i2c.3: alias fck already exists
[ 0.104105] omap_i2c.1: alias fck already exists
[ 0.105120] omap2_mcspi.1: alias fck already exists
[ 0.105377] omap2_mcspi.2: alias fck already exists
[ 0.105673] edma.0: alias fck already exists
[ 0.105694] edma.0: alias fck already exists
[ 0.105713] edma.0: alias fck already exists
[ 0.132762] bio: create slab <bio-0> at 0
[ 0.135179] SCSI subsystem initialized
[ 0.137073] usbcore: registered new interface driver usbfs
[ 0.137473] usbcore: registered new interface driver hub
[ 0.137699] usbcore: registered new device driver usb
[ 0.138047] registerd cppi-dma Intr @ IRQ 17
[ 0.138063] Cppi41 Init Done Qmgr-base(d083a000) dma-base(d0838000)
[ 0.138073] Cppi41 Init Done
[ 0.138103] musb-ti81xx musb-ti81xx: musb0, board_mode=0x13, plat_mode=0x3
[ 0.138449] musb-ti81xx musb-ti81xx: musb1, board_mode=0x13, plat_mode=0x1
[ 0.139754] omap_i2c omap_i2c.3: bus 3 rev2.4.0 at 100 kHz
[ 0.140744] i2c i2c-3: Failed to register i2c client 24c256 at 0x51 (-16)
[ 0.140759] i2c i2c-3: Can't create device at 0x51
[ 0.141162] omap_i2c omap_i2c.1: bus 1 rev2.4.0 at 100 kHz
[ 0.142205] tps65217 1-0024: TPS65217 ID 0xe version 1.2
[ 0.144320] print_constraints: DCDC1: 900 <--> 1800 mV at 1500 mV
[ 0.146478] print_constraints: DCDC2: 900 <--> 3300 mV at 1100 mV
[ 0.148610] print_constraints: DCDC3: 900 <--> 1500 mV at 1100 mV
[ 0.150721] print_constraints: LDO1: 1000 <--> 3300 mV at 1800 mV
[ 0.152840] print_constraints: LDO2: 900 <--> 3300 mV at 3300 mV
[ 0.154957] print_constraints: LDO3: 1800 <--> 3300 mV at 1800 mV
[ 0.157075] print_constraints: LDO4: 1800 <--> 3300 mV at 3300 mV
[ 0.158980] Advanced Linux Sound Architecture Driver Version 1.0.24.
[ 0.160241] Switching to clocksource gp timer
[ 0.177689] musb-hdrc: version 6.0, ?dma?, otg (peripheral+host)
[ 0.177912] musb-hdrc musb-hdrc.0: dma type: dma-cppi41
[ 0.179255] musb-hdrc musb-hdrc.0: USB OTG mode controller at d081c000 using DMA, IRQ 18
[ 0.179482] musb-hdrc musb-hdrc.1: dma type: dma-cppi41
[ 0.180328] musb-hdrc musb-hdrc.1: MUSB HDRC host driver
[ 0.180445] musb-hdrc musb-hdrc.1: new USB bus registered, assigned bus number 1
[ 0.180586] usb device show string idVendor
[ 0.180602] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 0.180612] usb device show string Mfr
[ 0.180623] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 0.180633] usb device show string
[ 0.180644] usb usb1: Product: MUSB HDRC host driver
[ 0.180655] usb usb1: Manufacturer: Linux 3.2.0 musb-hcd
[ 0.180665] usb usb1: SerialNumber: musb-hdrc.1
[ 0.181589] hub 1-0:1.0: USB hub found
[ 0.181618] hub 1-0:1.0: 1 port detected
[ 0.182287] musb-hdrc musb-hdrc.1: USB Host mode controller at d081e800 using DMA, IRQ 19
[ 0.182771] NET: Registered protocol family 2
[ 0.182977] IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.183285] TCP established hash table entries: 8192 (order: 4, 65536 bytes)
[ 0.183444] TCP bind hash table entries: 8192 (order: 3, 32768 bytes)
[ 0.183540] TCP: Hash tables configured (established 8192 bind 8192)
[ 0.183553] TCP reno registered
[ 0.183566] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 0.183589] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 0.183778] NET: Registered protocol family 1
[ 0.184047] RPC: Registered named UNIX socket transport module.
[ 0.184060] RPC: Registered udp transport module.
[ 0.184069] RPC: Registered tcp transport module.
[ 0.184078] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.184314] NetWinder Floating Point Emulator V0.97 (double precision)
[ 0.197250] VFS: Disk quotas dquot_6.5.2
[ 0.197320] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 0.197889] msgmni has been set to 494
[ 0.198689] io scheduler noop registered
[ 0.198703] io scheduler deadline registered
[ 0.198765] io scheduler cfq registered (default)
[ 0.200734] omap_uart.0: ttyO0 at MMIO 0x44e09000 (irq = 72) is a OMAP UART0
[ 0.855645] console [ttyO0] enabled
[ 0.860118] omap_uart.1: ttyO1 at MMIO 0x48022000 (irq = 73) is a OMAP UART1
[ 0.868045] omap_uart.2: ttyO2 at MMIO 0x48024000 (irq = 74) is a OMAP UART2
[ 0.875942] omap_uart.3: ttyO3 at MMIO 0x481a6000 (irq = 44) is a OMAP UART3
[ 0.883817] omap_uart.4: ttyO4 at MMIO 0x481a8000 (irq = 45) is a OMAP UART4
[ 0.891691] omap_uart.5: ttyO5 at MMIO 0x481aa000 (irq = 46) is a OMAP UART5
[ 0.909702] brd: module loaded
[ 0.918328] loop: module loaded
[ 0.921854] i2c-core: driver [tsl2550] using legacy suspend method
[ 0.928296] i2c-core: driver [tsl2550] using legacy resume method
[ 0.934772] at24 3-0050: 32768 byte 24c256 EEPROM, writable, 64 bytes/write
[ 0.942041] The board is a AM335x Beaglebone.
[ 0.946582] ---ALL---DBG---file=board-am335xevm.c,func=mmc0_init,line=2123++++ Enter board init:mmc0_init
[ 0.956779] ---MMC---DBG---file=hsmmc.c,func=omap2_hsmmc_init,line=561++++ cpu is no omap44xx()
[ 0.965952] ---MMC---DBG---file=hsmmc.c,func=omap2_hsmmc_init,line=587++++ mmc init loop mmc1
[ 0.974940] ---MMC---OKK---file=hsmmc.c,func=omap_init_hsmmc,line=496++++ Can allocate memory for mmc device ok!
[ 0.985648] ---MMC---OKK---file=hsmmc.c,func=omap_hsmmc_pdata_init,line=321++++ can allocate memory for controller slot name
[ 0.997442] ---MMC---DBG---file=hsmmc.c,func=omap_hsmmc_pdata_init,line=326++++ cpu_is_am33xx
[ 1.006436] ---MMC---OKK---file=hsmmc.c,func=omap_init_hsmmc,line=506++++ omap_init_hsmmc ok!
[ 1.015446] ---MMC---OKK---file=hsmmc.c,func=omap_init_hsmmc,line=531++++ Could look up mmc1
[ 1.024400] omap_hsmmc.0: alias fck already exists
[ 1.029878] ---ALL---DBG---file=board-am335xevm.c,func=lcdc_init,line=1111++++ Enter board init:lcdc_init
[ 1.040325] da8xx_lcdc.0: alias fck already exists
[ 1.046035] da8xx_lcdc da8xx_lcdc.0: GLCD: Found TFC_S9700RTWV35TR_01B panel
[ 1.059550] Console: switching to colour frame buffer device 60x34
[ 1.072379] ---ALL---DBG---file=board-am335xevm.c,func=evm_nand_init,line=1425++++ Enter board init:evm_nand_init
[ 1.084198] omap-gpmc omap-gpmc: GPMC revision 6.0
[ 1.089211] Registering NAND on CS0
[ 1.093695] ---ALL---DBG---file=board-am335xevm.c,func=mii1_init,line=1165++++ Enter board init:mii1_init
[ 1.103962] ---ALL---DBG---file=board-am335xevm.c,func=usb0_init,line=1179++++ Enter board init:usb0_init
[ 1.114049] ---ALL---DBG---file=board-am335xevm.c,func=usb1_init,line=1186++++ Enter board init:usb1_init
[ 1.124222] davinci-mcasp.0: alias fck already exists
[ 1.129920] ---ALL---DBG---file=board-am335xevm.c,func=mcasp0_init,line=1699++++ Enter board init:mcasp0_init
[ 1.140383] ---ALL---DBG---file=board-am335xevm.c,func=bjyn_gpio_init,line=2030++++ Enter board init:bjyn_gpio_init
[ 1.151438] ---ALL---DBG---file=board-am335xevm.c,func=uart1_init,line=1195++++ Enter board init:uart1_init
[ 1.161710] ---ALL---DBG---file=board-am335xevm.c,func=led_class_init,line=1910++++ Enter board init:led_class_init
[ 1.173090] ---ALL---DBG---file=board-am335xevm.c,func=uart4_init,line=1219++++ Enter board init:uart4_init
[ 1.183389] ---ALL---DBG---file=board-am335xevm.c,func=uart5_init,line=1227++++ Enter board init:uart5_init
[ 1.196079] mtdoops: mtd device (mtddev=name/number) must be supplied
[ 1.203526] omap2-nand driver initializing
[ 1.208227] NAND device: Manufacturer ID: 0xec, Chip ID: 0xdc (Samsung NAND 512MiB 3,3V 8-bit)
[ 1.217483] Creating 8 MTD partitions on "omap2-nand.0":
[ 1.223053] 0x000000000000-0x000000020000 : "SPL"
[ 1.229538] 0x000000020000-0x000000040000 : "SPL.backup1"
[ 1.236671] 0x000000040000-0x000000060000 : "SPL.backup2"
[ 1.243741] 0x000000060000-0x000000080000 : "SPL.backup3"
[ 1.250843] 0x000000080000-0x0000002e0000 : "U-Boot"
[ 1.258265] 0x0000002e0000-0x000000300000 : "U-Boot Env"
[ 1.265180] 0x000000300000-0x000000800000 : "Kernel"
[ 1.273749] 0x000000800000-0x000020000000 : "File System"
[ 1.490384] OneNAND driver initializing
[ 1.495173] UBI: attaching mtd7 to ubi0
[ 1.499191] UBI: physical eraseblock size: 131072 bytes (128 KiB)
[ 1.505751] UBI: logical eraseblock size: 126976 bytes
[ 1.511384] UBI: smallest flash I/O unit: 2048
[ 1.516287] UBI: VID header offset: 2048 (aligned 2048)
[ 1.522557] UBI: data offset: 4096
[ 1.850611] usb 1-1: new high-speed USB device number 2 using musb-hdrc
[ 2.020863] usb device show string idVendor
[ 2.025229] usb 1-1: New USB device found, idVendor=0424, idProduct=2514
[ 2.032223] usb device show string Mfr
[ 2.036132] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 2.043575] usb device show string
[ 2.071770] hub 1-1:1.0: USB hub found
[ 2.075754] hub 1-1:1.0: 4 ports detected
[ 5.866221] UBI: max. sequence number: 1284
[ 5.889648] UBI: attached mtd7 to ubi0
[ 5.893626] UBI: MTD device name: "File System"
[ 5.899341] UBI: MTD device size: 504 MiB
[ 5.904528] UBI: number of good PEBs: 4032
[ 5.909426] UBI: number of bad PEBs: 0
[ 5.914061] UBI: number of corrupted PEBs: 0
[ 5.918691] UBI: max. allowed volumes: 128
[ 5.923507] UBI: wear-leveling threshold: 4096
[ 5.928405] UBI: number of internal volumes: 1
[ 5.933040] UBI: number of user volumes: 1
[ 5.937668] UBI: available PEBs: 0
[ 5.942303] UBI: total number of reserved PEBs: 4032
[ 5.947473] UBI: number of PEBs reserved for bad PEB handling: 40
[ 5.953831] UBI: max/mean erase counter: 2/0
[ 5.958277] UBI: image sequence number: 1231155118
[ 5.963465] UBI: background thread "ubi_bgt0d" started, PID 572
[ 5.970764] CAN device driver interface
[ 5.974763] CAN bus driver for Bosch D_CAN controller 1.0
[ 6.030305] davinci_mdio davinci_mdio.0: davinci mdio revision 1.6
[ 6.036750] davinci_mdio davinci_mdio.0: detected phy mask fffffffe
[ 6.044060] davinci_mdio.0: probed
[ 6.047612] davinci_mdio davinci_mdio.0: phy[0]: device 0:00, driver SMSC LAN8710/LAN8720
[ 6.056349] PPP generic driver version 2.4.2
[ 6.061270] PPP BSD Compression module registered
[ 6.066174] PPP Deflate Compression module registered
[ 6.071867] PPP MPPE Compression module registered
[ 6.076874] NET: Registered protocol family 24
[ 6.081879] usbcore: registered new interface driver zd1201
[ 6.087905] usbcore: registered new interface driver cdc_ether
[ 6.094191] usbcore: registered new interface driver cdc_eem
[ 6.100259] usbcore: registered new interface driver dm9601
[ 6.106131] cdc_ncm: 04-Aug-2011
[ 6.109682] usbcore: registered new interface driver cdc_ncm
[ 6.115598] Initializing USB Mass Storage driver...
[ 6.120948] usbcore: registered new interface driver usb-storage
[ 6.127214] USB Mass Storage support registered.
[ 6.132433] usbcore: registered new interface driver usbserial
[ 6.138512] usbserial: USB Serial Driver core
[ 6.143223] USB Serial support registered for GSM modem (1-port)
[ 6.149889] usbcore: registered new interface driver option
[ 6.155724] option: v0.7.2:USB Driver for GSM modems
[ 6.161436] mousedev: PS/2 mouse device common for all mice
[ 6.167989] tsc2007 gpio init ok
[ 6.172098] AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
[ 6.177278] input: TSC2007 Touchscreen as /devices/virtual/input/input0
[ 6.185014] rtc-pcf8563 3-0051: chip found, driver version 0.4.3
[ 6.193348] rtc-pcf8563 3-0051: rtc core: registered rtc-pcf8563 as rtc0
[ 6.200571] i2c /dev entries driver
[ 6.204862] Linux video capture interface: v2.00
[ 6.209808] uvc init
[ 6.212437] usbcore: registered new interface driver uvcvideo
[ 6.218430] USB Video Class driver (1.1.1)
[ 6.224097] bq27441-battery 1-0055: support ver. 0.0 enabled
[ 6.240251] OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[ 6.247984] cpuidle: using governor ladder
[ 6.252809] cpuidle: using governor menu
[ 6.257304] ---MMC---OKK---file=omap_hsmmc.c,func=omap_hsmmc_probe,line=2194++++ grab HSMMC IRQ
[ 6.266500] ---MMC---ERR---file=omap_hsmmc.c,func=omap_hsmmc_probe,line=2232++++ not mmc_slot(host).card_detect_irq
[ 6.278823] ---MMC---DBG---file=omap_hsmmc.c,func=omap_hsmmc_probe,line=2263++++ mmc time init ok
[ 6.291763] timer trig init
[ 6.297125] usbcore: registered new interface driver usbhid
[ 6.302970] usbhid: USB HID core driver
[ 6.307888] usbcore: registered new interface driver snd-usb-audio
[ 6.316769] _regulator_get: 3-000a supply VDDA not found, using dummy regulator
[ 6.324508] _regulator_get: 3-000a supply VDDIO not found, using dummy regulator
[ 6.332280] _regulator_get: 3-000a supply VDDD not found, using dummy regulator
[ 6.340735] sgtl5000 3-000a: sgtl5000 revision 17
[ 6.347201] print_constraints: 3-000a: 850 <--> 1600 mV at 1200 mV normal
[ 6.354465] _regulator_get: 3-000a supply VDDA not found, using dummy regulator
[ 6.362149] _regulator_get: 3-000a supply VDDIO not found, using dummy regulator
[ 6.369916] sgtl5000 3-000a: Using internal LDO instead of VDDD
[ 6.379762] sgtl5000 3-000a: exceed max voltage vdda0 3300000mv vddio0 3300000ma vddd0 1200000ma
[ 6.396676] sgtl5000 3-000a: Failed to add route HPLOUT->Headphone Jack
[ 6.403606] sgtl5000 3-000a: dapm: unknown pin MONO_LOUT
[ 6.409145] sgtl5000 3-000a: dapm: unknown pin HPLCOM
[ 6.414418] sgtl5000 3-000a: dapm: unknown pin HPRCOM
[ 6.420368] asoc: sgtl5000 <-> davinci-mcasp.0 mapping ok
[ 6.427420] ALSA device list:
[ 6.430546] alsa sound last init idx=0
[ 6.434448] alsa sound last init idx=1
[ 6.438349] alsa sound last init idx=2
[ 6.442264] alsa sound last init idx=3
[ 6.446165] alsa sound last init idx=4
[ 6.450066] alsa sound last init idx=5
[ 6.453986] alsa sound last init idx=6
[ 6.457890] alsa sound last init idx=7
[ 6.461804] #8: (null)
[ 6.464440] oprofile: hardware counters not available
[ 6.469699] oprofile: using timer interrupt.
[ 6.474185] nf_conntrack version 0.5.0 (3956 buckets, 15824 max)
[ 6.480965] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 6.486637] TCP cubic registered
[ 6.490003] NET: Registered protocol family 17
[ 6.494681] can: controller area network core (rev 20090105 abi 8)
[ 6.501231] NET: Registered protocol family 29
[ 6.505869] can: raw protocol (rev 20090105)
[ 6.510331] can: broadcast manager protocol (rev 20090105 t)
[ 6.516265] Registering the dns_resolver key type
[ 6.521261] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
[ 6.529254] ThumbEE CPU extension supported.
[ 6.533783] mux: Failed to setup hwmod io irq -22
[ 6.539304] Power Management for AM33XX family
[ 6.544168] Trying to load am335x-pm-firmware.bin (60 secs timeout)
[ 6.550857] Copied the M3 firmware to UMEM
[ 6.555143] omap_hwmod: wkup_m3: wkup_m3: hwmod data error: OMAP4 does not support st_shift
[ 6.563874] ---ALL---DBG---file=board-am335xevm.c,func=ecap0_init,line=1083++++ Enter board init:ecap0_init
[ 6.577650] clock: disabling unused clocks to save power
[ 6.589056] Detected MACID=54:4a:16:81:e9:69
[ 6.596695] rtc-pcf8563 3-0051: setting system clock to 2015-09-05 20:19:13 UTC (1441484353)
[ 6.671378] UBIFS: recovery needed
[ 6.861919] UBIFS: recovery completed
[ 6.865766] UBIFS: mounted UBI device 0, volume 0, name "rootfs"
[ 6.872041] UBIFS: file system size: 418004992 bytes (408208 KiB, 398 MiB, 3292 LEBs)
[ 6.880394] UBIFS: journal size: 9023488 bytes (8812 KiB, 8 MiB, 72 LEBs)
[ 6.888014] UBIFS: media format: w4/r0 (latest is w4/r0)
[ 6.894099] UBIFS: default compressor: lzo
[ 6.898365] UBIFS: reserved for root: 0 bytes (0 KiB)
[ 6.905932] VFS: Mounted root (ubifs filesystem) on device 0:13. [ 6.912747] Freeing init memory: 368K [ 7.634656] udevd (714): /proc/714/oom_adj is deprecated, please use /proc/714/oom_score_adj instead.
[ 31.937860] Disabling lock debugging due to kernel taint
[ 31.984110] #######GpioTest modules is install!
[ 32.155677] gadget: HID Gadget, version: 2014/07/24
[ 32.160982] gadget: g_hid ready
[ 32.164363] musb-hdrc musb-hdrc.0: MUSB HDRC host driver
[ 32.169977] musb-hdrc musb-hdrc.0: new USB bus registered, assigned bus number 2
[ 32.177827] usb device show string idVendor
[ 32.182218] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
[ 32.189293] usb device show string Mfr
[ 32.193209] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 32.200746] usb device show string
[ 32.204290] usb usb2: Product: MUSB HDRC host driver
[ 32.209461] usb usb2: Manufacturer: Linux 3.2.0 musb-hcd
[ 32.215015] usb usb2: SerialNumber: musb-hdrc.0
[ 32.444351] hub 2-0:1.0: USB hub found
[ 32.448298] hub 2-0:1.0: 1 port detected
[ 32.825992]
[ 32.826003] CPSW phy found : id is : 0x7c0f1
[ 32.832884] PHY 0:01 not found
.-------.
| | .-.
| | |-----.-----.-----.| | .----..-----.-----.
| | | __ | ---'| '--.| .-'| | |
| | | | | |--- || --'| | | ' | | | |
'---'---'--'--'--. |-----''----''--' '-----'-'-'-'
-' |
'---'
The Angstrom Distribution Devkit8600 ttyO0
Angstrom 2008.1-test-20090127 Devkit8600 ttyO0
Devkit8600 login: http://www.baidu.com/s?ie=utf-8&f=8&rsv_bp=0&rsv_idx=1&tn=baidu&wd=linux%20udev&rsv_pq=b7911dc90000d3a7&rsv_t=7f0b1Afc1g2J1dwNiBoFlKCc0pW9EZboVZBs%2FvpDPbPclAOJFsOPLMch0b4&rsv_enter=1&rsv_sug3=23&rsv_sug1=7&rsv_sug2=0&inputT=6745&rsv_sug4=6745
baidu上比较多，这里应该可以优化，把不需要的驱动都关掉。
