通过打印的信息可以看出是执行了的，下面是执行dmesg后的信息：
root@am335x-evm:~# dmesg
[ 0.000000] Linux version 3.2.0 (linux@ubuntu) (gcc version 4.7.3 20130226 (prerelease) (crosstool-NG linaro-1.13.1-4.7-2013.03-20130313 - Linaro GCC 2013.03) ) #24 Sun Feb 16 22:54:11 PST 2014
[ 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] On node 0 totalpages: 32768
[ 0.000000] free_area_init_node: node 0, pgdat c0631ba8, node_mem_map c066a000
[ 0.000000] Normal zone: 256 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 32512 pages, LIFO batch:7
[ 0.000000] AM335X ES1.0 (neon )
[ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32512
[ 0.000000] Kernel command line: console=ttyO0,115200n8 root=/dev/mmcblk0p2 ro rootfstype=ext3 rootwait ip=none
[ 0.000000] PID hash table entries: 512 (order: -1, 2048 bytes)
[ 0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
[ 0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
[ 0.000000] Memory: 128MB = 128MB total
[ 0.000000] Memory: 123340k/123340k available, 7732k 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 : 0xc8800000 - 0xff000000 ( 872 MB)
[ 0.000000] lowmem : 0xc0000000 - 0xc8000000 ( 128 MB)
[ 0.000000] modules : 0xbf000000 - 0xc0000000 ( 16 MB)
[ 0.000000] .text : 0xc0008000 - 0xc0596000 (5688 kB)
[ 0.000000] .init : 0xc0596000 - 0xc05d1000 ( 236 kB)
[ 0.000000] .data : 0xc05d2000 - 0xc063b230 ( 421 kB)
[ 0.000000] .bss : 0xc063b254 - 0xc0669fa4 ( 188 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 clocksource: GPTIMER1 at 32768 Hz
[ 0.000000] sched_clock: 32 bits at 32kHz, resolution 30517ns, wraps every 131071999ms
[ 0.000000] Console: colour dummy device 80x30
[ 0.000305] Calibrating delay loop... 298.59 BogoMIPS (lpj=1492992)
[ 0.067687] pid_max: default: 32768 minimum: 301
[ 0.067932] Security Framework initialized
[ 0.068084] Mount-cache hash table entries: 512
[ 0.068756] CPU: Testing write buffer coherency: ok
[ 0.094238] omap_hwmod: gfx: failed to hardreset
[ 0.112670] omap_hwmod: pruss: failed to hardreset
[ 0.114624] print_constraints: dummy:
[ 0.115325] NET: Registered protocol family 16
[ 0.119628] OMAP GPIO hardware version 0.1
[ 0.125305] omap_mux_init: Add partition: #1: core, flags: 0
[ 0.129302] omap_i2c.1: alias fck already exists
[ 0.130065] omap_i2c.2: alias fck already exists
[ 0.130462]
[ 0.130493]
[ 0.130493] omap_register_i2c1_bus has succeed
[ 0.130523]
[ 0.130523]
[ 0.131896] omap2_mcspi.1: alias fck already exists
[ 0.132385] omap2_mcspi.2: alias fck already exists
[ 0.134338] edma.0: alias fck already exists
[ 0.134368] edma.0: alias fck already exists
[ 0.134429] edma.0: alias fck already exists
[ 0.195312] bio: create slab
at 0
[ 0.199951] SCSI subsystem initialized
[ 0.203277] usbcore: registered new interface driver usbfs
[ 0.203948] usbcore: registered new interface driver hub
[ 0.204345] usbcore: registered new device driver usb
[ 0.204925] registerd cppi-dma Intr @ IRQ 17
[ 0.204956] Cppi41 Init Done Qmgr-base(c887a000) dma-base(c8878000)
[ 0.204956] Cppi41 Init Done
[ 0.205017] musb-ti81xx musb-ti81xx: musb0, board_mode=0x13, plat_mode=0x3
[ 0.205596] musb-ti81xx musb-ti81xx: musb1, board_mode=0x13, plat_mode=0x1
[ 0.208068] omap_i2c omap_i2c.1: bus 1 rev2.4.0 at 100 kHz
[ 0.210998] tps65910 1-002d: could not be detected
[ 0.227783] omap_i2c omap_i2c.2: bus 2 rev2.4.0 at 100 kHz
[ 0.231140] Advanced Linux Sound Architecture Driver Version 1.0.24.
[ 0.233459] Switching to clocksource gp timer
[ 0.268646] musb-hdrc: version 6.0, ?dma?, otg (peripheral+host)
[ 0.268920] musb-hdrc musb-hdrc.0: dma type: dma-cppi41
[ 0.269561] MUSB0 controller's USBSS revision = 4ea20800
[ 0.269592] TxFifo Empty intr disabled
[ 0.270202] musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk combine, bulk split, HB-ISO Rx, HB-ISO Tx, SoftConn)
[ 0.270263] musb-hdrc: MHDRC RTL version 2.0
[ 0.270263] musb-hdrc: setup fifo_mode 4
[ 0.270324] musb-hdrc: 28/31 max ep, 16384/16384 memory
[ 0.270355] musb-hdrc.0: bulk split disabled
[ 0.270385] musb-hdrc.0: bulk combine disabled
[ 0.271545] musb-hdrc musb-hdrc.0: USB OTG mode controller at c883c000 using DMA, IRQ 18
[ 0.271850] musb-hdrc musb-hdrc.1: dma type: dma-cppi41
[ 0.272460] MUSB1 controller's USBSS revision = 4ea20800
[ 0.272491] TxFifo Empty intr disabled
[ 0.273071] musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk combine, bulk split, HB-ISO Rx, HB-ISO Tx, SoftConn)
[ 0.273132] musb-hdrc: MHDRC RTL version 2.0
[ 0.273132] musb-hdrc: setup fifo_mode 4
[ 0.273193] musb-hdrc: 28/31 max ep, 16384/16384 memory
[ 0.273223] musb-hdrc.1: bulk split disabled
[ 0.273254] musb-hdrc.1: bulk combine disabled
[ 0.273406] musb-hdrc musb-hdrc.1: MUSB HDRC host driver
[ 0.273651] musb-hdrc musb-hdrc.1: new USB bus registered, assigned bus number 1
[ 0.273864] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[ 0.273895] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[ 0.273925] usb usb1: Product: MUSB HDRC host driver
[ 0.273956] usb usb1: Manufacturer: Linux 3.2.0 musb-hcd
[ 0.273986] usb usb1: SerialNumber: musb-hdrc.1
[ 0.275756] hub 1-0:1.0: USB hub found
[ 0.275817] hub 1-0:1.0: 1 port detected
[ 0.276885] musb-hdrc musb-hdrc.1: USB Host mode controller at c883e800 using DMA, IRQ 19
[ 0.277648] NET: Registered protocol family 2
[ 0.277984] IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.278503] TCP established hash table entries: 4096 (order: 3, 32768 bytes)
[ 0.278717] TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.278839] TCP: Hash tables configured (established 4096 bind 4096)
[ 0.278869] TCP reno registered
[ 0.278900] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 0.278930] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 0.279357] NET: Registered protocol family 1
[ 0.279846] RPC: Registered named UNIX socket transport module.
[ 0.279876] RPC: Registered udp transport module.
[ 0.279907] RPC: Registered tcp transport module.
[ 0.279907] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.280334] NetWinder Floating Point Emulator V0.97 (double precision)
[ 0.291198] VFS: Disk quotas dquot_6.5.2
[ 0.291290] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[ 0.292358] msgmni has been set to 240
[ 0.298583] alg: No test for stdrng (krng)
[ 0.299713] io scheduler noop registered
[ 0.299743] io scheduler deadline registered
[ 0.299865] io scheduler cfq registered (default)
[ 0.301971] Could not set LED4 to fully on
[ 0.305084] omap_uart.0: ttyO0 at MMIO 0x44e09000 (irq = 72) is a OMAP UART0
[ 0.907592] console [ttyO0] enabled
[ 0.912353] omap_uart.1: ttyO1 at MMIO 0x48022000 (irq = 73) is a OMAP UART1
[ 0.920745] omap_uart.2: ttyO2 at MMIO 0x48024000 (irq = 74) is a OMAP UART2
[ 0.929077] omap_uart.3: ttyO3 at MMIO 0x481a6000 (irq = 44) is a OMAP UART3
[ 0.937408] omap_uart.4: ttyO4 at MMIO 0x481a8000 (irq = 45) is a OMAP UART4
[ 0.945739] omap_uart.5: ttyO5 at MMIO 0x481aa000 (irq = 46) is a OMAP UART5
[ 0.955017] omap4_rng omap4_rng: OMAP4 Random Number Generator ver. 2.00
[ 0.982727] brd: module loaded
[ 0.997039] loop: module loaded
[ 1.000732] i2c-core: driver [tsl2550] using legacy suspend method
[ 1.007324] i2c-core: driver [tsl2550] using legacy resume method
[ 1.013885] at24 1-0051: 32768 byte 24c256 EEPROM, writable, 64 bytes/write
[ 1.074035] No daughter card found
[ 1.077728] at24 1-0050: 32768 byte 24c256 EEPROM, writable, 64 bytes/write
[ 1.085113] The board is a AM335x Beaglebone Black.
[ 1.093292] tps65217 1-0024: TPS65217 ID 0xe version 1.2
[ 1.101776] print_constraints: DCDC1: 900 <--> 1800 mV at 1500 mV
[ 1.111206] print_constraints: DCDC2: 900 <--> 3300 mV at 1275 mV
[ 1.120574] print_constraints: DCDC3: 900 <--> 1500 mV at 1125 mV
[ 1.129943] print_constraints: LDO1: 1000 <--> 3300 mV at 1800 mV
[ 1.139312] print_constraints: LDO2: 900 <--> 3300 mV at 3300 mV
[ 1.148620] print_constraints: LDO3: 1800 <--> 3300 mV at 1800 mV
[ 1.158050] print_constraints: LDO4: 1800 <--> 3300 mV at 3300 mV
[ 1.166107] omap_hsmmc.0: alias fck already exists
[ 1.171997] omap_hsmmc.1: alias fck already exists
[ 1.177795]
[ 1.179382]
[ 1.180969]
[ 1.182556] i2c1_init has been executed
[ 1.186645]
[ 1.188201]
[ 1.189788]
[ 1.191467] omap_i2c.3: alias fck already exists
[ 1.197143] omap_i2c omap_i2c.3: bus 3 rev2.4.0 at 100 kHz
[ 1.204376] da8xx_lcdc.0: alias fck already exists
[ 1.210266] da8xx_lcdc da8xx_lcdc.0: GLCD: Found INNOLUX_TN92 panel
[ 1.235534] Console: switching to colour frame buffer device 100x30
[ 1.252532] _omap_mux_get_by_name: Could not find signal ain0.ain0
[ 1.259155] _omap_mux_get_by_name: Could not find signal ain1.ain1
[ 1.265716] _omap_mux_get_by_name: Could not find signal ain2.ain2
[ 1.272277] _omap_mux_get_by_name: Could not find signal ain3.ain3
[ 1.278869] _omap_mux_get_by_name: Could not find signal vrefp.vrefp
[ 1.285644] _omap_mux_get_by_name: Could not find signal vrefn.vrefn
[ 1.300354] mtdoops: mtd device (mtddev=name/number) must be supplied
[ 1.308044] omap2-nand driver initializing
[ 1.312744] OneNAND driver initializing
[ 1.319610] CAN device driver interface
[ 1.323669] CAN bus driver for Bosch D_CAN controller 1.0
[ 1.374114] davinci_mdio davinci_mdio.0: davinci mdio revision 1.6
[ 1.380676] davinci_mdio davinci_mdio.0: detected phy mask fffffffe
[ 1.388427] davinci_mdio.0: probed
[ 1.392028] davinci_mdio davinci_mdio.0: phy[0]: device 0:00, driver SMSC LAN8710/LAN8720
[ 1.401458] usbcore: registered new interface driver zd1201
[ 1.407775] usbcore: registered new interface driver cdc_ether
[ 1.414367] usbcore: registered new interface driver cdc_eem
[ 1.420684] usbcore: registered new interface driver dm9601
[ 1.426696] cdc_ncm: 04-Aug-2011
[ 1.430541] usbcore: registered new interface driver cdc_ncm
[ 1.436584] Initializing USB Mass Storage driver...
[ 1.442230] usbcore: registered new interface driver usb-storage
[ 1.448638] USB Mass Storage support registered.
[ 1.454528] mousedev: PS/2 mouse device common for all mice
[ 1.462432] input: ti-tsc as /devices/platform/omap/ti_tscadc/tsc/input/input0
[ 1.472229] omap_rtc am33xx-rtc: rtc core: registered am33xx-rtc as rtc0
[ 1.479705] i2c /dev entries driver
[ 1.485168] Linux video capture interface: v2.00
[ 1.490722] usbcore: registered new interface driver uvcvideo
[ 1.496856] USB Video Class driver (1.1.1)
[ 1.503387] omap_i2c omap_i2c.2: Arbitration lost
[ 1.509948] omap_i2c omap_i2c.2: Arbitration lost
[ 1.534606] omap_i2c omap_i2c.2: Arbitration lost
[ 2.574127] omap_i2c omap_i2c.2: timeout waiting for bus ready
[ 3.594146] omap_i2c omap_i2c.2: timeout waiting for bus ready
[ 4.614135] omap_i2c omap_i2c.2: timeout waiting for bus ready
[ 5.634155] omap_i2c omap_i2c.2: timeout waiting for bus ready
[ 6.654144] omap_i2c omap_i2c.2: timeout waiting for bus ready
[ 6.662872] OMAP Watchdog Timer Rev 0x01: initial timeout 60 sec
[ 6.746307] cpuidle: using governor ladder
[ 6.751312] cpuidle: using governor menu
[ 6.759643] omap4_aes_mod_init: loading AM33X AES driver
[ 6.765441] omap4-aes omap4-aes: AM33X AES hw accel rev: 3.02
[ 6.772155] omap4_aes_probe: probe() done
[ 6.776947] omap4_sham_mod_init: loading AM33X SHA/MD5 driver
[ 6.783172] omap4-sham omap4-sham: AM33X SHA/MD5 hw accel rev: 4.03
[ 6.799682] omap4_sham_probe: probe() done
[ 6.810607] usbcore: registered new interface driver usbhid
[ 6.816528] usbhid: USB HID core driver
[ 6.821411] tiadc tiadc: attached adc driver
[ 6.826995] usbcore: registered new interface driver snd-usb-audio
[ 6.835693] ALSA device list:
[ 6.838806] No soundcards found.
[ 6.842407] oprofile: hardware counters not available
[ 6.847747] oprofile: using timer interrupt.
[ 6.852294] nf_conntrack version 0.5.0 (1927 buckets, 7708 max)
[ 6.859100] ip_tables: (C) 2000-2006 Netfilter Core Team
[ 6.864837] TCP cubic registered
[ 6.868225] NET: Registered protocol family 17
[ 6.872955] can: controller area network core (rev 20090105 abi 8)
[ 6.879577] NET: Registered protocol family 29
[ 6.884307] can: raw protocol (rev 20090105)
[ 6.888793] can: broadcast manager protocol (rev 20090105 t)
[ 6.894836] Registering the dns_resolver key type
[ 6.899841] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
[ 6.907958] ThumbEE CPU extension supported.
[ 6.912536] mux: Failed to setup hwmod io irq -22
[ 6.918334] Power Management for AM33XX family
[ 6.923248] Trying to load am335x-pm-firmware.bin (60 secs timeout)
[ 6.930023] Copied the M3 firmware to UMEM
[ 6.934448] Cortex M3 Firmware Version = 0x181
[ 6.939819] sr_init: platform driver register failed
[ 6.949310] clock: disabling unused clocks to save power
[ 6.972686] Detected MACID=34:b1:f7:1a:18:4e
[ 6.978149] mmc0: host does not support reading read-only switch. assuming write-enable.
[ 6.987304] cpsw: Detected MACID = 34:b1:f7:1a:18:4f
[ 6.993164] mmc0: new high speed SDHC card at address aaaa
[ 7.000427] mmcblk0: mmc0:aaaa SU08G 7.40 GiB
[ 7.005584] omap_rtc am33xx-rtc: setting system clock to 2000-01-01 00:00:05 UTC (946684805)
[ 7.020233] mmcblk0: p1 p2
[ 7.030120] kjournald starting. Commit interval 5 seconds
[ 7.036041] EXT3-fs (mmcblk0p2): mounted filesystem with ordered data mode
[ 7.043334] VFS: Mounted root (ext3 filesystem) readonly on device 179:2.
[ 7.051116] Freeing init memory: 236K
[ 8.827362] alignment: ignoring faults is unsafe on this CPU. Defaulting to fixup mode.
[ 8.899871] EXT3-fs (mmcblk0p2): warning: mounting fs with errors, running e2fsck is recommended
[ 8.914031] EXT3-fs (mmcblk0p2): using internal journal
[ 10.693206] net eth0: CPSW phy found : id is : 0x7c0f1
[ 22.567810] pvrsrvkm: disagrees about version of symbol module_layout
[ 25.352142] g_mass_storage: disagrees about version of symbol module_layout
root@am335x-evm:~#
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