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	 > 嵌入式系統(tǒng) > 設(shè)計應(yīng)用 > AM335x(TQ335x)學(xué)習(xí)筆記——Nand&&網(wǎng)卡驅(qū)動移植
      
    
      

      

      


	
	
	

      
	
      
		
      
			
      AM335x(TQ335x)學(xué)習(xí)筆記——Nand&&網(wǎng)卡驅(qū)動移植
      
						
      
				作者：
				時間：2016-11-28
				來源：網(wǎng)絡(luò)
				
				
				
				
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			移植完成聲卡驅(qū)動之后本想再接再勵，移植網(wǎng)卡驅(qū)動，但沒想到的是TI維護的內(nèi)核太健壯，移植網(wǎng)卡驅(qū)動跟之前移植按鍵驅(qū)動一樣簡單，Nand驅(qū)動也是如此，于是，本人將Nand和網(wǎng)卡放在同一篇文章中介紹。介紹之前先感慨一下：TI的維護的內(nèi)核真的很健壯，DTS真的很強大。
      1. Nand驅(qū)動移植
      本文引用地址：http://www.biyoush.com/article/201611/322824.htm
      閱讀TQ335x的原理圖可知，TQ335x的Nand連接到了GPMC上，且與DTS中默認的配置吻合，此處不做任何修改，詳情如下：
      1. nandflash_pins_s0:nandflash_pins_s0{
      2. pinctrl-single,pins=<
      3. 0x0(PIN_INPUT_PULLUP|MUX_MODE0)/*gpmc_ad0.gpmc_ad0*/
      4. 0x4(PIN_INPUT_PULLUP|MUX_MODE0)/*gpmc_ad1.gpmc_ad1*/
      5. 0x8(PIN_INPUT_PULLUP|MUX_MODE0)/*gpmc_ad2.gpmc_ad2*/
      6. 0xc(PIN_INPUT_PULLUP|MUX_MODE0)/*gpmc_ad3.gpmc_ad3*/
      7. 0x10(PIN_INPUT_PULLUP|MUX_MODE0)/*gpmc_ad4.gpmc_ad4*/
      8. 0x14(PIN_INPUT_PULLUP|MUX_MODE0)/*gpmc_ad5.gpmc_ad5*/
      9. 0x18(PIN_INPUT_PULLUP|MUX_MODE0)/*gpmc_ad6.gpmc_ad6*/
      10. 0x1c(PIN_INPUT_PULLUP|MUX_MODE0)/*gpmc_ad7.gpmc_ad7*/
      11. 0x70(PIN_INPUT_PULLUP|MUX_MODE0)/*gpmc_wait0.gpmc_wait0*/
      12. 0x74(PIN_INPUT_PULLUP|MUX_MODE7)/*gpmc_wpn.gpio0_30*/
      13. 0x7c(PIN_OUTPUT|MUX_MODE0)/*gpmc_csn0.gpmc_csn0*/
      14. 0x90(PIN_OUTPUT|MUX_MODE0)/*gpmc_advn_ale.gpmc_advn_ale*/
      15. 0x94(PIN_OUTPUT|MUX_MODE0)/*gpmc_oen_ren.gpmc_oen_ren*/
      16. 0x98(PIN_OUTPUT|MUX_MODE0)/*gpmc_wen.gpmc_wen*/
      17. 0x9c(PIN_OUTPUT|MUX_MODE0)/*gpmc_be0n_cle.gpmc_be0n_cle*/
      18. >;
      19. };

      直接編譯內(nèi)核，并放到開發(fā)板上運行。這時我們會發(fā)現(xiàn)內(nèi)核可以識別Nand，但是因為沒有開啟OMAP的BCH功能會報一處錯誤。開啟該配置項的方法如下：
      1. DeviceDrivers--->
      2. <*>MemoryTechnologyDevice(MTD)support--->
      3. <*>NANDDeviceSupport--->
      4. <*>SupporthardwarebasedBCHerrorcorrection
      保存配置并退出menuconfig，然后重新編譯內(nèi)核并放到開發(fā)板上運行，此時會發(fā)現(xiàn)內(nèi)核已經(jīng)可以正常識別Nand了，完整的啟動Log會在文章末尾給出。從這里可以看出，TI的內(nèi)核維護的真的很不錯，比以前移植三星芯片時省事很多。
      2. 網(wǎng)卡驅(qū)動移植
      進行網(wǎng)卡驅(qū)動移植的方法與進行Nand驅(qū)動移植的方法相同，邏輯上講，先應(yīng)該去確認下網(wǎng)卡的引腳連接并在DTS中進行相應(yīng)的pinmux設(shè)置，但是，移植完Nand后查看內(nèi)核的啟動Log可知，網(wǎng)卡已經(jīng)正常識別了，因此，可以直接執(zhí)行指令：
      1. udhcpc
      來動態(tài)獲取ip（需要將開發(fā)板通過網(wǎng)線連接到路由器并開啟路由器的DHCP功能，默認一般是開啟的），會發(fā)現(xiàn)開發(fā)板能夠從路由器分配到IP，但是沒有分配DNS，這是因為我們只做文件系統(tǒng)時沒有進行dhcp的設(shè)置。設(shè)置方法很簡單，將busybox中的examples/udhcp/simple.script拷貝到根文件系統(tǒng)的usr/share/udhcpc/目錄下，并改名為default.script即可。然后重新執(zhí)行：
      1. udhcpc
      會發(fā)現(xiàn)開發(fā)板可以正常獲取到IP和DNS，但是仍有一處錯誤，詳細如下：
      1. @tq335x#udhcpc
      2. udhcpc(v1.22.1)started
      3. SettingIPaddress0.0.0.0oneth0
      4. [11.489311]neteth0:initializingcpswversion1.12(0)
      5. [11.576237]neteth0:phyfound:idis:0x1cc915
      6. [11.581418]libphy:PHY4a101000.mdio:01notfound
      7. [11.586480]neteth0:phy4a101000.mdio:01notfoundonslave1
      8. Sendingdiscover...
      9. [13.576458]cpsw4a100000.etherneteth0:LinkisUp-100Mbps/Full-flowcontrolrx/tx
      10. Sendingdiscover...
      11. Sendingselectfor192.168.0.103...
      12. Leaseof192.168.0.103obtained,leasetime86400
      13. SettingIPaddress192.168.0.103oneth0
      14. Deletingrouters
      15. route:SIOCDELRT:Nosuchprocess
      16. Addingrouter192.168.0.1
      17. Recreating/etc/resolv.conf
      18. AddingDNSserver10.0.0.1
      參考TI官網(wǎng)提供的evm開發(fā)板的dts，本文對tq335x.dts做如下修改：
      1. &mac{
      2. slaves=<1>;
      3. pinctrl-names="default","sleep";
      4. pinctrl-0=<&cpsw_default>;
      5. pinctrl-1=<&cpsw_sleep>;
      6. status="okay";
      7. };
      然后刪除以下節(jié)點：
      1. &cpsw_emac1{
      2. phy_id=<&davinci_mdio>,<1>;
      3. phy-mode="rgmii-txid";
      4. };
      重新編譯tq335x.dtb：
      1. makeARCH=armCROSS_COMPILE=arm-linux-gnueabi-tq335x.dtb
      用新的tq335x.dtb啟動開發(fā)板：
      1. loadmmc0:10x88000000/boot/tq335x.dtb
      2. loadmmc0:10x82000000/boot/zImage
      3. bootz0x82000000-0x88000000
      最后，再次使用指令：
      1. udhcpc
      進行測試，會發(fā)現(xiàn)開發(fā)板能夠正常獲取IP和DNS。如果您的路由器已經(jīng)連接到了外網(wǎng)，還可以使用ping指令測試與外網(wǎng)的連接，如ping谷歌的DNS服務(wù)器：
      1. ping8.8.8.8
      至此，就完成了TQ335x的Nand和網(wǎng)卡驅(qū)動移植，并不需要深入的了解其內(nèi)部的工作原理，有問題可以留言討論。如果想了解這兩個模塊的工作原理，強烈推薦韋東山老師的嵌入式教學(xué)視頻，靜下心來看的話，絕對物有所值。該視頻還是需要一定的硬件和軟件功底的，如果看不懂可以補習(xí)下C語言、基本原理圖閱讀等方面的知識。
      3. 啟動Log
      完整的啟動Log如下：
      1. Startingkernel...
      3. [0.000000]BootingLinuxonphysicalCPU0x0
      4. [0.000000]Linuxversion3.17.2(lilianrong@smarter)(gccversion4.7.3(Ubuntu/Linaro4.7.3-12ubuntu1))#73SMPTueDec2322:06:01CST2014
      5. [0.000000]CPU:ARMv7Processor[413fc082]revision2(ARMv7),cr=10c5387d
      6. [0.000000]CPU:PIPT/VIPTnonaliasingdatacache,VIPTaliasinginstructioncache
      7. [0.000000]Machinemodel:TIAM335xEVM
      8. [0.000000]cma:Reserved16MiBat9e800000
      9. [0.000000]Memorypolicy:Datacachewriteback
      10. [0.000000]HighMemzone:1048574pagesexceedsfreesize0
      11. [0.000000]CPU:AllCPU(s)startedinSVCmode.
      12. [0.000000]AM335XES2.1(sgxneon)
      13. [0.000000]PERCPU:Embedded9pages/cpu@dfa99000s14336r8192d14336u36864
      14. [0.000000]Built1zonelistsinZoneorder,mobilitygroupingon.Totalpages:129792
      15. [0.000000]Kernelcommandline:console=ttyO0,115200n8root=/dev/mmcblk0p2rwrootfstype=ext3rootwait
      16. [0.000000]PIDhashtableentries:2048(order:1,8192bytes)
      17. [0.000000]Dentrycachehashtableentries:65536(order:6,262144bytes)
      18. [0.000000]Inode-cachehashtableentries:32768(order:5,131072bytes)
      19. [0.000000]Memory:484108K/523264Kavailable(6082Kkernelcode,667Krwdata,2448Krodata,410Kinit,8214Kbss,39156Kreserved,0Khighmem)
      20. [0.000000]Virtualkernelmemorylayout:
      21. [0.000000]vector:0xffff0000-0xffff1000(4kB)
      22. [0.000000]fixmap:0xffc00000-0xffe00000(2048kB)
      23. [0.000000]vmalloc:0xe0800000-0xff000000(488MB)
      24. [0.000000]lowmem:0xc0000000-0xe0000000(512MB)
      25. [0.000000]pkmap:0xbfe00000-0xc0000000(2MB)
      26. [0.000000]modules:0xbf000000-0xbfe00000(14MB)
      27. [0.000000].text:0xc0008000-0xc085cc80(8532kB)
      28. [0.000000].init:0xc085d000-0xc08c3800(410kB)
      29. [0.000000].data:0xc08c4000-0xc096ac10(668kB)
      30. [0.000000].bss:0xc096ac10-0xc11707a0(8215kB)
      31. [0.000000]HierarchicalRCUimplementation.
      32. [0.000000]RCUrestrictingCPUsfromNR_CPUS=2tonr_cpu_ids=1.
      33. [0.000000]RCU:Adjustinggeometryforrcu_fanout_leaf=16,nr_cpu_ids=1
      34. [0.000000]NR_IRQS:16nr_irqs:1616
      35. [0.000000]IRQ:FoundanINTCat0xfa200000(revision5.0)with128interrupts
      36. [0.000000]Totalof128interruptson1activecontroller
      37. [0.000000]OMAPclockeventsource:timer2at24000000Hz
      38. [0.000013]sched_clock:32bitsat24MHz,resolution41ns,wrapsevery178956969942ns
      39. [0.000062]OMAPclocksource:timer1at24000000Hz
      40. [0.000794]Console:colourdummydevice80x30
      41. [0.000846]Lockdependencyvalidator:Copyright(c)2006RedHat,Inc.,IngoMolnar
      42. [0.000855]...MAX_LOCKDEP_SUBCLASSES:8
      43. [0.000863]...MAX_LOCK_DEPTH:48
      44. [0.000870]...MAX_LOCKDEP_KEYS:8191
      45. [0.000877]...CLASSHASH_SIZE:4096
      46. [0.000884]...MAX_LOCKDEP_ENTRIES:32768
      47. [0.000891]...MAX_LOCKDEP_CHAINS:65536
      48. [0.000898]...CHAINHASH_SIZE:32768
      49. [0.000906]memoryusedbylockdependencyinfo:5167kB
      50. [0.000914]pertask-structmemoryfootprint:1152bytes
      51. [0.000956]Calibratingdelayloop...996.14BogoMIPS(lpj=4980736)
      52. [0.079052]pid_max:default:32768minimum:301
      53. [0.079452]SecurityFrameworkinitialized
      54. [0.079577]Mount-cachehashtableentries:1024(order:0,4096bytes)
      55. [0.079589]Mountpoint-cachehashtableentries:1024(order:0,4096bytes)
      56. [0.081767]CPU:Testingwritebuffercoherency:ok
      57. [0.082936]CPU0:thread-1,cpu0,socket-1,mpidr0
      58. [0.083055]Settingupstaticidentitymapfor0x805c3270-0x805c32e0
      59. [0.086292]Broughtup1CPUs
      60. [0.086313]SMP:Totalof1processorsactivated.
      61. [0.086323]CPU:AllCPU(s)startedinSVCmode.
      62. [0.088953]devtmpfs:initialized
      63. [0.097712]VFPsupportv0.3:implementor41architecture3part30variantcrev3
      64. [0.133428]omap_hwmod:tptc0usingbrokendtdatafromedma
      65. [0.133784]omap_hwmod:tptc1usingbrokendtdatafromedma
      66. [0.134117]omap_hwmod:tptc2usingbrokendtdatafromedma
      67. [0.141998]omap_hwmod:debugss:_wait_target_disablefailed
      68. [0.199949]pinctrlcore:initializedpinctrlsubsystem
      69. [0.202465]regulator-dummy:noparameters
      70. [0.232121]NET:Registeredprotocolfamily16
      71. [0.240699]DMA:preallocated256KiBpoolforatomiccoherentallocations
      72. [0.242951]cpuidle:usinggovernorladder
      73. [0.242981]cpuidle:usinggovernormenu
      74. [0.254980]OMAPGPIOhardwareversion0.1
      75. [0.270240]omap-gpmc50000000.gpmc:couldnotfindpctldevfornode/pinmux@44e10800/nandflash_pins_s0,deferringprobe
      76. [0.270283]platform50000000.gpmc:Driveromap-gpmcrequestsprobedeferral
      77. [0.274806]hw-breakpoint:debugarchitecture0x4unsupported.
      78. [0.319718]edma-dma-engineedma-dma-engine.0:TIEDMADMAenginedriver
      79. [0.321050]vbat:5000mV
      80. [0.321878]lis3_reg:noparameters
      81. [0.325259]SCSIsubsysteminitialized
      82. [0.326052]usbcore:registerednewinterfacedriverusbfs
      83. [0.326223]usbcore:registerednewinterfacedriverhub
      84. [0.330168]usbcore:registerednewdevicedriverusb
      85. [0.330998]omap_i2c44e0b000.i2c:couldnotfindpctldevfornode/pinmux@44e10800/pinmux_i2c0_pins,deferringprobe
      86. [0.331037]platform44e0b000.i2c:Driveromap_i2crequestsprobedeferral
      87. [0.331092]omap_i2c4802a000.i2c:couldnotfindpctldevfornode/pinmux@44e10800/pinmux_i2c1_pins,deferringprobe
      88. [0.331116]platform4802a000.i2c:Driveromap_i2crequestsprobedeferral
      89. [0.332291]AdvancedLinuxSoundArchitectureDriverInitialized.
      90. [0.335642]Switchedtoclocksourcetimer1
      91. [0.487189]NET:Registeredprotocolfamily2
      92. [0.489058]TCPestablishedhashtableentries:4096(order:2,16384bytes)
      93. [0.489243]TCPbindhashtableentries:4096(order:5,147456bytes)
      94. [0.490606]TCP:Hashtablesconfigured(established4096bind4096)
      95. [0.490797]TCP:renoregistered
      96. [0.490823]UDPhashtableentries:256(order:2,20480bytes)
      97. [0.491013]UDP-Litehashtableentries:256(order:2,20480bytes)
      98. [0.492039]NET:Registeredprotocolfamily1
      99. [0.493915]RPC:RegisterednamedUNIXsockettransportmodule.
      100. [0.493936]RPC:Registeredudptransportmodule.
      101. [0.493946]RPC:Registeredtcptransportmodule.
      102. [0.493955]RPC:RegisteredtcpNFSv4.1backchanneltransportmodule.
      103. [0.495229]hwperfevents:enabledwitharmv7_cortex_a8PMUdriver,5countersavailable
      104. [0.499735]futexhashtableentries:256(order:2,16384bytes)
      105. [0.504791]VFS:Diskquotasdquot_6.5.2
      106. [0.504950]Dquot-cachehashtableentries:1024(order0,4096bytes)
      107. [0.507753]NFS:Registeringtheid_resolverkeytype
      108. [0.508115]Keytypeid_resolverregistered
      109. [0.508132]Keytypeid_legacyregistered
      110. [0.508279]jffs2:version2.2.(NAND)(SUMMARY)漏2001-2006RedHat,Inc.
      111. [0.508729]msgmnihasbeensetto977
      112. [0.513651]ioschedulernoopregistered
      113. [0.513685]ioschedulerdeadlineregistered
      114. [0.513753]ioschedulercfqregistered(default)
      115. [0.516150]pinctrl-single44e10800.pinmux:142pinsatpaf9e10800size568
      116. [0.521255]backlightsupplypowernotfound,usingdummyregulator
      117. [0.524492]Serial:8250/16550driver,4ports,IRQsharingenabled
      118. [0.530892]omap_uart44e09000.serial:nowakeirqforuart0
      119. [0.531504]44e09000.serial:ttyO0atMMIO0x44e09000(irq=88,base_baud=3000000)isaOMAPUART0
      120. [1.232153]console[ttyO0]enabled
      121. [1.241558]omap_rng48310000.rng:OMAPRandomNumberGeneratorver.20
      122. [1.249198][drm]Initializeddrm1.1.020060810
      123. [1.261409][drm]SupportsvblanktimestampcachingRev2(21.10.2013).
      124. [1.268521][drm]Nodriversupportforvblanktimestampquery.
      125. [1.331152]Console:switchingtocolourframebufferdevice100x30
      126. [1.342247]tilcdc4830e000.lcdc:fb0:framebufferdevice
      127. [1.348135]tilcdc4830e000.lcdc:registeredpanicnotifier
      128. [1.354036][drm]Initializedtilcdc1.0.020121205onminor0
      129. [1.389964]brd:moduleloaded
      130. [1.408309]loop:moduleloaded
      131. [1.414443]mtdoops:mtddevice(mtddev=name/number)mustbesupplied
      132. [1.425081]usbcore:registerednewinterfacedriverasix
      133. [1.430985]usbcore:registerednewinterfacedriverax88179_178a
      134. [1.437512]usbcore:registerednewinterfacedrivercdc_ether
      135. [1.443772]usbcore:registerednewinterfacedriversmsc95xx
      136. [1.449928]usbcore:registerednewinterfacedrivernet1080
      137. [1.455981]usbcore:registerednewinterfacedrivercdc_subset
      138. [1.462281]usbcore:registerednewinterfacedriverzaurus
      139. [1.468354]usbcore:registerednewinterfacedrivercdc_ncm
      140. [1.476438]usbcore:registerednewinterfacedrivercdc_wdm
      141. [1.482554]usbcore:registerednewinterfacedriverusb-storage
      142. [1.489102]usbcore:registerednewinterfacedriverusbtest
      143. [1.497261]mousedev:PS/2mousedevicecommonforallmice
      144. [1.508204]omap_rtc44e3e000.rtc:rtccore:registered44e3e000.rtcasrtc0
      145. [1.516418]i2c/deventriesdriver
      146. [1.520156]Driverfor1-wireDallasnetworkprotocol.
      147. [1.533123]omap_wdt:OMAPWatchdogTimerRev0x01:initialtimeout60sec
      148. [1.543243]omap_hsmmc48060000.mmc:unabletogetvmmcregulator-517
      149. [1.550707]platform48060000.mmc:Driveromap_hsmmcrequestsprobedeferral
      150. [1.560219]ledtrig-cpu:registeredtoindicateactivityonCPUs
      151. [1.567132]usbcore:registerednewinterfacedriverusbhid
      152. [1.572953]usbhid:USBHIDcoredriver
      153. [1.584275]davinci_evmsound:ASoC:CODEC(null)notregistered
      154. [1.591095]davinci_evmsound:snd_soc_register_cardfailed(-517)
      155. [1.597727]platformsound:Driverdavinci_evmrequestsprobedeferral
      156. [1.605542]oprofile:usingarm/armv7
      157. [1.610156]TCP:cubicregistered
      158. [1.613633]InitializingXFRMnetlinksocket
      159. [1.618345]NET:Registeredprotocolfamily17
      160. [1.623080]NET:Registeredprotocolfamily15
      161. [1.628155]Keytypedns_resolverregistered
      162. [1.632833]omap_voltage_late_init:Voltagedriversupportnotadded
      163. [1.639539]sr_dev_init:Novoltagedomainspecifiedforsmartreflex0.Cannotinitialize
      164. [1.648011]sr_dev_init:Novoltagedomainspecifiedforsmartreflex1.Cannotinitialize
      165. [1.657602]ThumbEECPUextensionsupported.
      166. [1.662123]RegisteringSWP/SWPBemulationhandler
      167. [1.667204]SmartReflexClass3initialized
      168. [1.679204]omap-gpmc50000000.gpmc:GPMCrevision6.0
      169. [1.686359]nand:devicefound,ManufacturerID:0xec,ChipID:0xd3
      170. [1.693006]nand:SamsungNAND1GiB3,3V8-bit
      171. [1.697702]nand:1024MiB,SLC,pagesize:2048,OOBsize:64
      172. [1.703702]nand:usingOMAP_ECC_BCH8_CODE_HWECCscheme
      173. [1.709544]10ofpartpartitionsfoundonMTDdeviceomap2-nand.0
      174. [1.715935]Creating10MTDpartitionson"omap2-nand.0":
      175. [1.721581]0x000000000000-0x000000020000:"NAND.SPL"
      176. [1.738760]0x000000020000-0x000000040000:"NAND.SPL.backup1"
      177. [1.750072]0x000000040000-0x000000060000:"NAND.SPL.backup2"
      178. [1.759540]0x000000060000-0x000000080000:"NAND.SPL.backup3"
      179. [1.770709]0x000000080000-0x0000000c0000:"NAND.u-boot-spl"
      180. [1.780999]0x0000000c0000-0x0000001c0000:"NAND.u-boot"
      181. [1.794193]0x0000001c0000-0x0000001e0000:"NAND.u-boot-env"
      182. [1.803810]0x0000001e0000-0x000000200000:"NAND.u-boot-env.backup1"
      183. [1.815705]0x000000200000-0x000000a00000:"NAND.kernel"
      184. [1.831741]0x000000a00000-0x000010000000:"NAND.file-system"
      185. [2.128744]tps659100-002d:Nointerruptsupport,nocoreIRQ
      186. [2.145804]vrtc:1800mV
      187. [2.149201]vrtc:suppliedbyvbat
      188. [2.156403]vio:at1500mV
      189. [2.159674]vio:suppliedbyvbat
      190. [2.166535]vdd_mpu:912<-->1312mVat1325mV
      191. [2.171674]vdd_mpu:suppliedbyvbat
      192. [2.178847]vdd_core:912<-->1150mVat1137mV
      193. [2.184071]vdd_core:suppliedbyvbat
      194. [2.190808]vdd3:5000mV
      195. [2.196352]vdig1:at1800mV
      196. [2.199763]vdig1:suppliedbyvbat
      197. [2.206242]vdig2:at1800mV
      198. [2.209646]vdig2:suppliedbyvbat
      199. [2.216312]vpll:at1800mV
      200. [2.219632]vpll:suppliedbyvbat
      201. [2.226021]vdac:at1800mV
      202. [2.229339]vdac:suppliedbyvbat
      203. [2.235593]vaux1:at1800mV
      204. [2.238998]vaux1:suppliedbyvbat
      205. [2.245289]vaux2:at3300mV
      206. [2.248809]vaux2:suppliedbyvbat
      207. [2.255223]vaux33:at3300mV
      208. [2.258804]vaux33:suppliedbyvbat
      209. [2.265220]vmmc:1800<-->3300mVat3300mV
      210. [2.270279]vmmc:suppliedbyvbat
      211. [2.276822]vbb:at3000mV
      212. [2.280309]vbb:suppliedbyvbat
      213. [2.288030]omap_i2c44e0b000.i2c:bus0rev0.11at400kHz
      214. [2.301649]omap_i2c4802a000.i2c:bus1rev0.11at100kHz
      215. [2.347377]wm89600-001a:Noplatformdatasupplied
      216. [2.424716]mmc0:hostdoesnotsupportreadingread-onlyswitch.assumingwrite-enable.
      217. [2.436373]mmc0:newhighspeedSDHCcardataddressaaaa
      218. [2.444716]mmcblk0:mmc0:aaaaSL16G14.8GiB
      219. [2.456727]mmcblk0:p1p2
      220. [2.471831]davinci_evmsound:wm8960-hifi<->4803c000.mcaspmappingok
      221. [2.555784]davinci_mdio4a101000.mdio:davincimdiorevision1.6
      222. [2.562174]davinci_mdio4a101000.mdio:detectedphymaskffffffde
      223. [2.572385]libphy:4a101000.mdio:probed
      224. [2.576709]davinci_mdio4a101000.mdio:phy[0]:device4a101000.mdio:00,driverunknown
      225. [2.585071]davinci_mdio4a101000.mdio:phy[5]:device4a101000.mdio:05,driverunknown
      226. [2.594702]cpsw4a100000.ethernet:DetectedMACID=c4:ed:ba:88:b5:e4
      227. [2.606568]input:gpio_keyad@0as/devices/gpio_keyad@0/input/input0
      228. [2.616308]omap_rtc44e3e000.rtc:settingsystemclockto2000-01-0100:00:00UTC(946684800)
      229. [2.625329]sr_init:NoPMIChooktoinitsmartreflex
      230. [2.630961]sr_init:platformdriverregisterfailedforSR
      231. [2.653937]lis3_reg:disabling
      232. [2.657604]ALSAdevicelist:
      233. [2.660710]#0:AM335x-EVM
      234. [2.779242]kjournaldstarting.Commitinterval5seconds
      235. [2.787736]EXT3-fs(mmcblk0p2):usinginternaljournal
      236. [2.795710]EXT3-fs(mmcblk0p2):recoverycomplete
      237. [2.800726]EXT3-fs(mmcblk0p2):mountedfilesystemwithordereddatamode
      238. [2.808089]VFS:Mountedroot(ext3filesystem)ondevice179:2.
      239. [2.818461]devtmpfs:mounted
      240. [2.822292]Freeingunusedkernelmemory:408K(c085d000-c08c3000)
      241. ----------mountall..........
      242. ----------Startingmdev......
      244. PleasepressEntertoactivatethisconsole.
      245. @tq335x#
      246. @tq335x#udhcpc
      247. udhcpc(v1.22.1)started
      248. SettingIPaddress0.0.0.0oneth0
      249. [11.489311]neteth0:initializingcpswversion1.12(0)
      250. [11.576237]neteth0:phyfound:idis:0x1cc915
      251. [11.581418]libphy:PHY4a101000.mdio:01notfound
      252. [11.586480]neteth0:phy4a101000.mdio:01notfoundonslave1
      253. Sendingdiscover...
      254. [13.576458]cpsw4a100000.etherneteth0:LinkisUp-100Mbps/Full-flowcontrolrx/tx
      255. Sendingdiscover...
      256. Sendingselectfor192.168.0.103...
      257. Leaseof192.168.0.103obtained,leasetime86400
      258. SettingIPaddress192.168.0.103oneth0
      259. Deletingrouters
      260. route:SIOCDELRT:Nosuchprocess
      261. Addingrouter192.168.0.1
      262. Recreating/etc/resolv.conf
      263. AddingDNSserver10.0.0.1
      264. @tq335x#ping8.8.8.8
      265. PING8.8.8.8(8.8.8.8):56databytes
      266. 64bytesfrom8.8.8.8:seq=0ttl=38time=471.858ms
      267. 64bytesfrom8.8.8.8:seq=1ttl=38time=479.178ms
      268. 64bytesfrom8.8.8.8:seq=3ttl=38time=574.362ms
      269. 64bytesfrom8.8.8.8:seq=4ttl=38time=476.201ms
      270. ^C
      271. ---8.8.8.8pingstatistics---
      272. 5packetstransmitted,4packetsreceived,20%packetloss
      273. round-tripmin/avg/max=471.858/500.399/574.362ms
      274. @tq335x# 

      
				
            
                
			
							
      
                
			              
              
            
      
		
      
		
      
		
      
		
      
		
      
			
        
				
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