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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1.  在ubantu16.04（64bit）按照官网安装ti-processor-sdk-linux-omapl138-lcdk-04.00.00.04-Linux-x86-Install.bin

. n: @3 v% W4 {# ~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

3.  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
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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）：
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setenv uboot_macaddr 1
1 c/ k/ I# W# d7 s1 r1 rsetenv ethaddr 00:0c:29:bc:7e:9a
: p  u- o& e. V7 L. p4 Jsetenv serverip 192.168.2.192
setenv ipaddr 192.168.2.191

- ?  y" ^; f1 O! q. R! X# {3 Cbootcmd=tftp c0700000 zImage;bootz c0700000
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+ @% q2 p. y& K- vbootargs=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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: k/ ?* c& x( d) k4. 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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boot命令后的完整启动信息：
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=> boot
Using DaVinci-EMAC device
: T5 F4 r$ x$ q; `  ?  [TFTP from server 192.168.2.192; our IP address is 192.168.2.191
+ z/ \' N$ a& l' MFilename 'zImage'.
Load address: 0xc0700000
+ {- V, E/ O4 f- r2 Y1 B+ l: _( b; nLoading: #################################################################
! n+ K) n8 H7 K' r, u5 k         #################################################################
& q8 P- ^/ g$ m: E" A, Q- T. y         ################################
( L0 E/ H' Q, Y4 [6 `6 [. i! C* C  `         288.1 KiB/s
) L/ K$ t( _& F, m  l& ^done
& @8 e1 n+ ^' U6 CBytes transferred = 2367360 (241f80 hex)

, i. Q$ C: U+ q: g& H7 _, G  g/ `Starting kernel ...
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Uncompressing Linux... done, booting the kernel.
Booting Linux on physical CPU 0x0
1 _- d1 K9 L/ H0 ^+ F3 [$ K8 wLinux 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
CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=0005317f
2 A1 F% {9 O9 F1 T: K4 YCPU: VIVT data cache, VIVT instruction cache
Machine: AM18x/OMAP-L138 Hawkboard
da8xx_rproc_reserve_cma: 'rproc_mem=nn@address' badly specified
4 s& E. j6 P6 K3 d0 V    'nn' and 'address' must both be non-zero
+ m5 s, z" \3 z! m( Lcma: Reserved 16 MiB at 0xc6c00000
Memory policy: Data cache writethrough
4 {$ c9 T5 P/ j8 E8 A7 A1 T7 `DaVinci da850/omap-l138/am18x variant 0x1
, q6 G) |2 D' M6 T' @/ m- |Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 32480
Kernel 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
7 V( q  }0 }- Y6 A& `" T* F: A9 IPID hash table entries: 512 (order: -1, 2048 bytes)
! T6 s3 b  b6 b3 Q- ]; C9 x+ \) EDentry cache hash table entries: 16384 (order: 4, 65536 bytes)
% w0 B8 p4 e. }9 D3 m* uInode-cache hash table entries: 8192 (order: 3, 32768 bytes)
% _+ l) x& L/ P. l* S2 cMemory: 106592K/131072K available (4529K kernel code, 308K rwdata, 1500K rodata, 228K init, 162K bss, 8096K reserved, 16384K cma-reserved)
' ~; X, n( c7 o7 q& w9 iVirtual kernel memory layout:
) O' \/ p8 Z0 R  {2 y    vector  : 0xffff0000 - 0xffff1000   (   4 kB)
1 V1 r+ j1 `# h0 V    fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
    vmalloc : 0xc8800000 - 0xff800000   ( 880 MB)
    lowmem  : 0xc0000000 - 0xc8000000   ( 128 MB)
    modules : 0xbf000000 - 0xc0000000   (  16 MB)
      .text : 0xc0008000 - 0xc0474b38   (4531 kB)
      .init : 0xc05ed000 - 0xc0626000   ( 228 kB)
: i, z+ h; [8 |, U5 S      .data : 0xc0626000 - 0xc0673110   ( 309 kB)
       .bss : 0xc0673110 - 0xc069bc08   ( 163 kB)
2 _$ Q  L; L' ?) j" [+ t- bSLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Preemptible hierarchical RCU implementation.
        Build-time adjustment of leaf fanout to 32.
6 N! p' G. @/ W4 n& l2 ONR_IRQS:245
1 r& C" T0 Z" r) X. t% ~8 iclocksource: timer0_1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
0 w  x& f" G+ I8 L: M! X1 SConsole: colour dummy device 80x30
Calibrating delay loop... 227.32 BogoMIPS (lpj=1136640)
3 L' o8 i& _( ?! o* C2 npid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
0 m% r/ P2 ~& J  P1 zMountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
: _/ P0 {  n) d# c9 n7 RCPU: Testing write buffer coherency: ok
Setting up static identity map for 0xc0008400 - 0xc0008458
devtmpfs: initialized
VFP support v0.3: not present
clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
8 o, Z( P: {0 W$ C' [0 Z. i- Yfutex hash table entries: 256 (order: -1, 3072 bytes)
. F: @' H- P9 R+ m$ Q  ]& upinctrl core: initialized pinctrl subsystem
NET: Registered protocol family 16
3 y8 C0 s0 z& t" f/ gDMA: preallocated 256 KiB pool for atomic coherent allocations
cpuidle: using governor ladder
cpuidle: using governor menu
EMAC: MII PHY configured
7 q5 S9 {" |4 M/ g8 G/ {mux: initialized GPIO3_12
& z( z7 }2 J3 y: e2 bmux: Setting register GPIO3_12
  ^* y( s0 ~# }mux:    PINMUX7 (0x0000001c) = 0x00110110 -> 0x00118110
mux: initialized GPIO3_13
2 O4 S: z: Q8 [5 B% g+ X, Z- C% V1 Dmux: Setting register GPIO3_13
! o9 d# o  N1 Ymux:    PINMUX7 (0x0000001c) = 0x00118110 -> 0x00118810
6 U+ [/ `5 v; e! Q. m3 W0 _/ omux: initialized GPIO2_4
+ `  i& m% d4 Cmux: Setting register GPIO2_4
mux:    PINMUX6 (0x00000018) = 0x00000000 -> 0x00008000
mux: initialized GPIO6_13
" V  k* P  |  w8 w, V: qmux: Setting register GPIO6_13
mux:    PINMUX13 (0x00000034) = 0x00000000 -> 0x00000800
4 b4 d% o. C6 f  K5 [! L" g6 uda8xx_register_rproc: memory not reserved for DSP, not registering DSP device
3 i& Y( Z+ @  l' ~4 v- Lomapl138_hawk_init: dsp/rproc registration failed: -12
edma edma.0: Legacy memcpy is enabled, things might not work
2 l0 g/ I' F/ F5 ]. Q' Redma edma.0: TI EDMA DMA engine driver
, g" @  g. e3 M0 j! Hedma edma.1: Legacy memcpy is enabled, things might not work
edma edma.1: TI EDMA DMA engine driver
clocksource: Switched to clocksource timer0_1
$ F: F( j/ {0 Z8 eNET: Registered protocol family 2
TCP established hash table entries: 1024 (order: 0, 4096 bytes)
7 R# G. w) e+ W  u# p) y+ dTCP bind hash table entries: 1024 (order: 0, 4096 bytes)
' v- {" T) P) B( r& t7 q5 ~TCP: Hash tables configured (established 1024 bind 1024)
1 R, v( Q0 Y" c+ W4 lUDP hash table entries: 256 (order: 0, 4096 bytes)
UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
. C' @4 u/ i' M( v- L) MNET: Registered protocol family 1
5 M# v2 X, x- v$ g! y1 i3 ]$ cRPC: Registered named UNIX socket transport module.
4 W2 j4 D  S( O* i. y. U1 k, j. ?( S! oRPC: Registered udp transport module.
' J5 ?# y. S; Q+ j  D7 k$ RRPC: Registered tcp transport module.
9 ^; a' _. u# T3 k+ D% [! HRPC: Registered tcp NFSv4.1 backchannel transport module.
workingset: timestamp_bits=14 max_order=15 bucket_order=1
& ^& C( \% b8 P$ gBlock layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
2 x- r$ `0 F, U- `, wio scheduler noop registered (default)
Serial: 8250/16550 driver, 10 ports, IRQ sharing disabled
1 X. W7 ?; i. E/ [0 i) Oserial8250.0: ttyS0 at MMIO 0x1c42000 (irq = 25, base_baud = 14250000) is a 16550A
serial8250.1: ttyS1 at MMIO 0x1d0c000 (irq = 53, base_baud = 8250000) is a 16550A
+ n% U+ {: C4 C& @+ z0 f/ [7 cserial8250.2: ttyS2 at MMIO 0x1d0d000 (irq = 61, base_baud = 8250000) is a 16550A
console [ttyS2] enabled
0 c2 K* \1 Z5 \- Cbrd: module loaded
! ^, O# x% L5 j9 dlibphy: Fixed MDIO Bus: probed
6 ?5 R- I5 u0 k8 T4 u, o! E/ }# }davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
2 b) A  k' F/ h  j3 h4 idavinci_mdio davinci_mdio.0: detected phy mask fffffffe
( N' n* s# y9 m, q: Y5 O+ `libphy: davinci_mdio.0: probed
, g* n, _5 O% P& N6 B# cdavinci_mdio davinci_mdio.0: phy[0]: device davinci_mdio-0:00, driver SMSC LAN8710/LAN8720
0 o* w) r# ~  B, W# c# j5 ^i2c /dev entries driver
davinci_mmc da830-mmc.0: cannot find GPIO chip davinci_gpio.1
davinci_mmc da830-mmc.0: cannot find GPIO chip davinci_gpio.1
2 n* [, E8 l6 A1 y! h; Ydavinci_mmc da830-mmc.0: Using DMA, 4-bit mode
NET: Registered protocol family 10
/ B; A, {8 C) y9 z5 R/ psit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
NET: Registered protocol family 17
console [netcon0] enabled
netconsole: network logging started
davinci_emac davinci_emac.1: using random MAC addr: 0a:ed:9e:24:43:89
hctosys: unable to open rtc device (rtc0)
libphy: PHY davinci_mdio-0:07 not found
) r# G' _9 Z6 B* g3 _1 k( _net eth0: could not connect to phy davinci_mdio-0:07
2 R/ F9 k9 }, D4 n; D+ R7 }IP-Config: Failed to open eth0
IP-Config: No network devices available
mmc0: host does not support reading read-only switch, assuming write-enable
mmc0: new high speed SDHC card at address 59b4
$ [( N; j& Z- A, ]7 [! immcblk0: mmc0:59b4 SS08G 7.41 GiB
mmcblk0: p1 p2
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/* 此处等待了一段时间 */

  u# S# R# a8 w. d/ Q( Vrandom: fast init done
VFS: Unable to mount root fs via NFS, trying floppy.
# \0 R9 l2 A0 Y; T9 t% \! [, J% [1 MVFS: Cannot open root device "nfs" or unknown-block(2,0): error -6
1 g: ?$ M$ V' b- W) V0 Y( P! w. o% LPlease append a correct "root=" boot option; here are the available partitions:
# Z; P+ F% y9 O5 L) f, T1 V& h0100           32768 ram0  (driver?)
b300         7764992 mmcblk0  driver: mmcblk
  b301           71680 mmcblk0p1 cd4e1bc4-01
  b302         7675904 mmcblk0p2 cd4e1bc4-02                          
1 p" X% }- S: C5 @4 jKernel 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：

libphy: PHY davinci_mdio-0:07 not found
net eth0: could not connect to phy davinci_mdio-0:07
IP-Config: Failed to open eth0
IP-Config: No network devices available

伊撒斯

uestczwj 发表于 2017-9-12 22:25
2 k- `5 {7 {+ ]9 L9 Z$ G应该是如下错误造成NFS失败：

* E. l1 }. a' T; n% Flibphy: PHY davinci_mdio-0:07 not found

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。