TL138/6748/1808F-EasyEVM-A2使用ti-processor-sdk-linux-omapl138-lcdk-04.00....

uestczwj

0.  开发板型号：  TL138/6748/1808F-EasyEVM-A2, 开发版启动模式模式为SD卡启动
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8 S$ o: R+ e  _0 F! D/ x+ W- G1.  在ubantu16.04（64bit）按照官网安装ti-processor-sdk-linux-omapl138-lcdk-04.00.00.04-Linux-x86-Install.bin
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9 k% y+ Z: j2 n& _2.  把uboot， kernel， filesystem写入SD卡, 拨码开关设置为SD启动， 能够正常启动能够进入嵌入式开发版

) V& |6 Y( ]0 F1 I( m& o3.  SD卡启动方式保持不变，但是在uboot中配置为tftp下载内核和nfs挂载方式

uboot配置参数如下（由于没有开发板没有自动获取mac地址，所以自己设置为：  setenv  ethaddr 00:0c:29:bc:7e:9a）：

setenv uboot_macaddr 1
setenv ethaddr 00:0c:29:bc:7e:9a
6 M8 z2 \5 [' E, r$ L" Rsetenv serverip 192.168.2.192
setenv ipaddr 192.168.2.191

# f3 h3 F8 V3 y* I, X/ C* u- ~% fbootcmd=tftp c0700000 zImage;bootz c0700000
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bootargs=eth=00:0c:29:bc:7e:9a nfsroot=192.168.2.192:/opt/omapl138/linux-sdk/targetNFS, nolock rw console=ttyS2,115200n8 ip=dhcp root=/dev/nfs
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4. 能够通过tftp下载并启动内核，但是在挂载NFS文件系统之前报错（错误在下面内核启动信息的最后）：
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$ h' [. W' y4 W) z" Vboot命令后的完整启动信息：

=> boot
Using DaVinci-EMAC device
TFTP from server 192.168.2.192; our IP address is 192.168.2.191
Filename 'zImage'.
Load address: 0xc0700000
Loading: #################################################################
: B3 b; K. X" w5 [         #################################################################
         ################################
         288.1 KiB/s
- n- [  i1 v+ @- ldone
4 g+ J' X7 p+ \& |Bytes transferred = 2367360 (241f80 hex)
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& ^: Z  A/ W8 D6 Z1 m% lStarting kernel ...
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Uncompressing Linux... done, booting the kernel.
) f  A$ d1 X" \Booting Linux on physical CPU 0x0
+ f3 K' g' Q8 V- y; Q' [& lLinux version 4.9.28-geed43d1050 (gtbldadm@ubuntu-16) (gcc version 6.2.1 20161016 (Linaro GCC 6.2-2016.11) ) #1 PREEMPT Wed Jun 28 17:47:16 EDT 2017
% p) [  H) v+ h6 E5 t# cCPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=0005317f
CPU: VIVT data cache, VIVT instruction cache
Machine: AM18x/OMAP-L138 Hawkboard
' i) z0 s0 B2 {6 k# H: ~8 _da8xx_rproc_reserve_cma: 'rproc_mem=nn@address' badly specified
" s& }7 G2 O% W1 _1 [# @: j! G    'nn' and 'address' must both be non-zero
/ e8 S* a! g7 J) d! ?cma: Reserved 16 MiB at 0xc6c00000
/ u0 X. N8 p1 t3 y9 xMemory policy: Data cache writethrough
DaVinci da850/omap-l138/am18x variant 0x1
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 32480
: G" ]" r" N: V4 }1 M6 j( yKernel command line: eth=00:0c:29:bc:7e:9a nfsroot=192.168.2.192:/opt/omapl138/linux-sdk/targetNFS, nolock rw console=ttyS2,115200n8 ip=dhcp root=/dev/nfs
# f& B/ w: n- |6 ~) d8 U; j3 O$ y; rPID hash table entries: 512 (order: -1, 2048 bytes)
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
' Q, y$ l. H5 E, w& o. _Memory: 106592K/131072K available (4529K kernel code, 308K rwdata, 1500K rodata, 228K init, 162K bss, 8096K reserved, 16384K cma-reserved)
) H* w6 j# P8 B+ ?4 I" b1 AVirtual kernel memory layout:
    vector  : 0xffff0000 - 0xffff1000   (   4 kB)
    fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
2 g0 x& Z8 C2 y    vmalloc : 0xc8800000 - 0xff800000   ( 880 MB)
8 ?6 U3 m# w; v  y  p5 [; |/ R    lowmem  : 0xc0000000 - 0xc8000000   ( 128 MB)
% D6 p% `( Z; c: U, G    modules : 0xbf000000 - 0xc0000000   (  16 MB)
      .text : 0xc0008000 - 0xc0474b38   (4531 kB)
! B" [/ D- E' k' S% v9 K      .init : 0xc05ed000 - 0xc0626000   ( 228 kB)
6 x; |6 l* @- z* q      .data : 0xc0626000 - 0xc0673110   ( 309 kB)
       .bss : 0xc0673110 - 0xc069bc08   ( 163 kB)
- o0 x+ b5 B3 X* |SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Preemptible hierarchical RCU implementation.
  X) z( e; @2 f! ~6 h        Build-time adjustment of leaf fanout to 32.
NR_IRQS:245
* i" B, O; e  N2 P: @/ dclocksource: timer0_1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
8 x7 ?$ y  Q* Usched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
Console: colour dummy device 80x30
Calibrating delay loop... 227.32 BogoMIPS (lpj=1136640)
pid_max: default: 32768 minimum: 301
" H# ^1 s8 @/ M9 U4 D: N2 z$ NMount-cache hash table entries: 1024 (order: 0, 4096 bytes)
$ _0 G( ~/ C  p$ c* Z  lMountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
( |5 J# Z3 H" j. e  aCPU: Testing write buffer coherency: ok
$ J* _2 e( s. M% h! XSetting up static identity map for 0xc0008400 - 0xc0008458
+ N5 t# W- g8 ^8 m  V8 }devtmpfs: initialized
1 G, c; ?8 O8 e  Y4 B* p/ \6 p; VVFP support v0.3: not present
clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
6 k4 l# N% X9 x) v( S1 B* n: Rfutex hash table entries: 256 (order: -1, 3072 bytes)
: q# N$ w9 x  l" epinctrl core: initialized pinctrl subsystem
4 ^# e, p  A0 C" q) C, o0 lNET: Registered protocol family 16
* y, Y9 }/ o1 ~DMA: preallocated 256 KiB pool for atomic coherent allocations
cpuidle: using governor ladder
cpuidle: using governor menu
EMAC: MII PHY configured
mux: initialized GPIO3_12
* T* u: {5 c! _. ymux: Setting register GPIO3_12
mux:    PINMUX7 (0x0000001c) = 0x00110110 -> 0x00118110
5 q% B) ~# }: |  ~5 k+ |  s6 Wmux: initialized GPIO3_13
mux: Setting register GPIO3_13
: Z) Y2 }# B2 S+ Z: H% \mux:    PINMUX7 (0x0000001c) = 0x00118110 -> 0x00118810
mux: initialized GPIO2_4
mux: Setting register GPIO2_4
, l4 M) e6 u. j4 a! B: y9 nmux:    PINMUX6 (0x00000018) = 0x00000000 -> 0x00008000
5 j1 c+ o. i+ G0 z5 ~mux: initialized GPIO6_13
2 j0 ^- l  M1 H. W1 tmux: Setting register GPIO6_13
mux:    PINMUX13 (0x00000034) = 0x00000000 -> 0x00000800
) h' F% J+ s! i3 E; ada8xx_register_rproc: memory not reserved for DSP, not registering DSP device
6 D, ?$ `' L. |omapl138_hawk_init: dsp/rproc registration failed: -12
edma edma.0: Legacy memcpy is enabled, things might not work
/ i9 l8 A% e* Y3 ?  iedma edma.0: TI EDMA DMA engine driver
7 b+ P; `# b% ^8 ~+ f: i! _edma edma.1: Legacy memcpy is enabled, things might not work
0 Q  _2 G" H* n+ Q- b# R7 qedma edma.1: TI EDMA DMA engine driver
clocksource: Switched to clocksource timer0_1
7 _6 d* u1 P9 S3 Z4 FNET: Registered protocol family 2
TCP established hash table entries: 1024 (order: 0, 4096 bytes)
TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
TCP: Hash tables configured (established 1024 bind 1024)
UDP hash table entries: 256 (order: 0, 4096 bytes)
UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
0 ^9 J* N* n4 y8 X! YRPC: Registered tcp transport module.
1 `& o+ i; P/ {" y- ~$ f8 [8 jRPC: Registered tcp NFSv4.1 backchannel transport module.
1 [  a& S4 ~+ k3 D' Aworkingset: timestamp_bits=14 max_order=15 bucket_order=1
) ?" Y$ _/ _) B; OBlock layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
io scheduler noop registered (default)
Serial: 8250/16550 driver, 10 ports, IRQ sharing disabled
. w! Q% o" d; t8 O* h' Y5 [serial8250.0: ttyS0 at MMIO 0x1c42000 (irq = 25, base_baud = 14250000) is a 16550A
% K9 W  P2 o  P% `serial8250.1: ttyS1 at MMIO 0x1d0c000 (irq = 53, base_baud = 8250000) is a 16550A
serial8250.2: ttyS2 at MMIO 0x1d0d000 (irq = 61, base_baud = 8250000) is a 16550A
console [ttyS2] enabled
brd: module loaded
libphy: Fixed MDIO Bus: probed
4 S3 I4 F( `3 K0 M% e: Vdavinci_mdio davinci_mdio.0: davinci mdio revision 1.5
1 d6 G- [; n( ]% ydavinci_mdio davinci_mdio.0: detected phy mask fffffffe
libphy: davinci_mdio.0: probed
0 |4 s$ R/ R: F" e+ Fdavinci_mdio davinci_mdio.0: phy[0]: device davinci_mdio-0:00, driver SMSC LAN8710/LAN8720
i2c /dev entries driver
. y9 w2 Z5 S* i8 T; Gdavinci_mmc da830-mmc.0: cannot find GPIO chip davinci_gpio.1
" g1 F% g1 Z; B* F) {0 ~davinci_mmc da830-mmc.0: cannot find GPIO chip davinci_gpio.1
0 A& d5 U5 D% {2 s: _: edavinci_mmc da830-mmc.0: Using DMA, 4-bit mode
, F( X: n& Z* p5 PNET: Registered protocol family 10
sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
NET: Registered protocol family 17
console [netcon0] enabled
0 n5 m* \. r6 t) N( Vnetconsole: network logging started
davinci_emac davinci_emac.1: using random MAC addr: 0a:ed:9e:24:43:89
; a& h1 ~9 j2 B, k8 yhctosys: unable to open rtc device (rtc0)
' O+ g& i% }# T% \# tlibphy: PHY davinci_mdio-0:07 not found
. c; B8 F$ Z- v0 k4 @2 znet eth0: could not connect to phy davinci_mdio-0:07
8 O1 i! c1 E2 p# q) p+ R. pIP-Config: Failed to open eth0
: q0 K# |0 S0 R2 `6 \IP-Config: No network devices available
mmc0: host does not support reading read-only switch, assuming write-enable
: a, y4 Z1 {, ]6 z6 ^) ^; Bmmc0: new high speed SDHC card at address 59b4
! h/ ]' {) c* h3 [6 P+ pmmcblk0: mmc0:59b4 SS08G 7.41 GiB
6 n1 m' [/ y6 ? mmcblk0: p1 p2
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/* 此处等待了一段时间 */
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random: fast init done
! D7 O7 a3 h) ?" L1 {VFS: Unable to mount root fs via NFS, trying floppy.
VFS: Cannot open root device "nfs" or unknown-block(2,0): error -6
9 a4 C* Q' ?" |1 nPlease append a correct "root=" boot option; here are the available partitions:
0100           32768 ram0  (driver?)
b300         7764992 mmcblk0  driver: mmcblk
: K. w+ x1 o6 A: Y$ F  b301           71680 mmcblk0p1 cd4e1bc4-01
  b302         7675904 mmcblk0p2 cd4e1bc4-02                          
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block
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uestczwj

应该是如下错误造成NFS失败：
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libphy: PHY davinci_mdio-0:07 not found
. C2 U9 S- |0 w9 W- ?1 f; \net eth0: could not connect to phy davinci_mdio-0:07
4 ?5 s( n/ n& L2 yIP-Config: Failed to open eth0
IP-Config: No network devices available

伊撒斯

uestczwj 发表于 2017-9-12 22:25
应该是如下错误造成NFS失败：
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libphy: PHY davinci_mdio-0:07 not found

5 L) {# B; m! W, }5 Q0 b您好，我们光盘资料里面，有提供相关的nfs组件安装包和搭建的指导文档，建议您先按照我们的资料去搭建，我们使用的是，基于Ubuntu12.04的nfs开发环境搭建。