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

) a% K% }& B: P- }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

8 f/ M, D1 {0 L$ Y  u2.  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
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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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! `+ [; X! x$ f0 J- wuboot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
8 E' K) x& {1 y% fsetenv serverip 192.168.2.192
setenv ipaddr 192.168.2.191

1 m$ `, |( _9 B( kbootcmd=tftp c0700000 zImage;bootz c0700000

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

# k& v  O2 M$ c# h, Z1 ~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）：

boot命令后的完整启动信息：

1 w4 l( U3 f7 s0 g# I7 x=> boot
Using DaVinci-EMAC device
TFTP from server 192.168.2.192; our IP address is 192.168.2.191
; ~8 L: i  m' }0 yFilename 'zImage'.
; L9 J9 B: u2 `) n5 ELoad address: 0xc0700000
6 b% D3 C: h8 F7 `* s* c/ ]' ?Loading: #################################################################
; y, `8 J0 Q- F( W) \7 Q         #################################################################
/ u. w8 Q: B. }         ################################
0 j# ^4 A: y6 ]; N         288.1 KiB/s
4 V% c* Z/ @; R1 p# Edone
* |9 j8 k2 F, `% KBytes transferred = 2367360 (241f80 hex)

Starting kernel ...
  l5 z  M# r4 ]) ^
& \9 `3 t7 O4 c- G8 s* l- r3 Z& c- N! CUncompressing Linux... done, booting the kernel.
; y2 X( |5 D! W: N- h, w+ GBooting Linux on physical CPU 0x0
7 n  c) h7 m( u$ bLinux 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
' ]+ y( n2 A! k% H/ @5 x% K) W* {CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=0005317f
: [5 `1 E: R9 S; \- i. ~/ a9 |* aCPU: VIVT data cache, VIVT instruction cache
6 ^/ E( ?+ @; `/ ^" w( |Machine: AM18x/OMAP-L138 Hawkboard
da8xx_rproc_reserve_cma: 'rproc_mem=nn@address' badly specified
    'nn' and 'address' must both be non-zero
cma: Reserved 16 MiB at 0xc6c00000
Memory policy: Data cache writethrough
DaVinci da850/omap-l138/am18x variant 0x1
$ ?  L. t* h) _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
PID 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)
; C. `0 J0 U$ oMemory: 106592K/131072K available (4529K kernel code, 308K rwdata, 1500K rodata, 228K init, 162K bss, 8096K reserved, 16384K cma-reserved)
Virtual kernel memory layout:
% V% S+ X* g' T4 @; z' v' b    vector  : 0xffff0000 - 0xffff1000   (   4 kB)
    fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
    vmalloc : 0xc8800000 - 0xff800000   ( 880 MB)
: ?- B$ ^" z7 V' C  ~    lowmem  : 0xc0000000 - 0xc8000000   ( 128 MB)
    modules : 0xbf000000 - 0xc0000000   (  16 MB)
      .text : 0xc0008000 - 0xc0474b38   (4531 kB)
      .init : 0xc05ed000 - 0xc0626000   ( 228 kB)
      .data : 0xc0626000 - 0xc0673110   ( 309 kB)
       .bss : 0xc0673110 - 0xc069bc08   ( 163 kB)
6 w9 L1 X' h6 Z+ a+ g8 nSLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Preemptible hierarchical RCU implementation.
        Build-time adjustment of leaf fanout to 32.
NR_IRQS:245
clocksource: timer0_1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
, i. d/ y6 @1 x3 Hsched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
) }$ @5 ~9 a+ A9 EConsole: colour dummy device 80x30
7 v5 Q, ^; A- s, G) @, p9 {Calibrating delay loop... 227.32 BogoMIPS (lpj=1136640)
2 |' t# |( Z" spid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
( a. E; j" M7 i% tMountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
CPU: Testing write buffer coherency: ok
Setting up static identity map for 0xc0008400 - 0xc0008458
. q+ h5 }4 |& v4 Z) Ydevtmpfs: initialized
VFP support v0.3: not present
2 [; E( O1 t/ a0 b3 M1 }clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
+ @  u, X, u9 ^! M+ z9 dfutex hash table entries: 256 (order: -1, 3072 bytes)
1 G1 x2 q& l6 `7 J9 Spinctrl core: initialized pinctrl subsystem
6 h7 M2 b9 v. VNET: Registered protocol family 16
2 x# B% G! q3 _4 @. ^5 [3 G- nDMA: preallocated 256 KiB pool for atomic coherent allocations
! B: p; @) d. M7 Y& `cpuidle: using governor ladder
cpuidle: using governor menu
- _- h1 K0 |- CEMAC: MII PHY configured
! V1 ]( i2 K. Y+ P& Ymux: initialized GPIO3_12
9 n: I/ H+ ~1 R$ Z$ D# Q+ C% Amux: Setting register GPIO3_12
mux:    PINMUX7 (0x0000001c) = 0x00110110 -> 0x00118110
4 n: h( d- c+ T9 b, Bmux: initialized GPIO3_13
mux: Setting register GPIO3_13
mux:    PINMUX7 (0x0000001c) = 0x00118110 -> 0x00118810
mux: initialized GPIO2_4
/ Q% n+ V0 z" M) W2 q* `3 Wmux: Setting register GPIO2_4
mux:    PINMUX6 (0x00000018) = 0x00000000 -> 0x00008000
mux: initialized GPIO6_13
mux: Setting register GPIO6_13
0 J& u# j9 D- B. _1 C5 A( E4 e2 nmux:    PINMUX13 (0x00000034) = 0x00000000 -> 0x00000800
- o6 y& c1 k! ?da8xx_register_rproc: memory not reserved for DSP, not registering DSP device
omapl138_hawk_init: dsp/rproc registration failed: -12
$ m2 a9 n  F' s+ r" ]* G9 d2 yedma edma.0: Legacy memcpy is enabled, things might not work
* K$ a  T- v' t. j7 }edma edma.0: TI EDMA DMA engine driver
9 ~1 r( h* y9 F7 R  e" E- gedma edma.1: Legacy memcpy is enabled, things might not work
edma edma.1: TI EDMA DMA engine driver
clocksource: Switched to clocksource timer0_1
6 G! S- |% z7 @  b# J( A8 p& mNET: 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)
$ x9 D3 m5 k0 QUDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
* v- o8 J3 ]9 L4 t$ oRPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
workingset: timestamp_bits=14 max_order=15 bucket_order=1
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
2 D1 F, |4 ~( m: n# b* E! V& @io scheduler noop registered (default)
Serial: 8250/16550 driver, 10 ports, IRQ sharing disabled
serial8250.0: 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
serial8250.2: ttyS2 at MMIO 0x1d0d000 (irq = 61, base_baud = 8250000) is a 16550A
console [ttyS2] enabled
5 u' C2 J, w) R! Q8 |' F  H1 M8 Vbrd: module loaded
$ o) }2 w2 i7 |, e1 H3 Mlibphy: Fixed MDIO Bus: probed
davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
davinci_mdio davinci_mdio.0: detected phy mask fffffffe
' m; Y  k3 M, i6 o6 {# Wlibphy: davinci_mdio.0: probed
davinci_mdio davinci_mdio.0: phy[0]: device davinci_mdio-0:00, driver SMSC LAN8710/LAN8720
i2c /dev entries driver
& A; t8 {1 x) a# _  Cdavinci_mmc da830-mmc.0: cannot find GPIO chip davinci_gpio.1
  ~% \3 U3 O: t! G0 t: zdavinci_mmc da830-mmc.0: cannot find GPIO chip davinci_gpio.1
davinci_mmc da830-mmc.0: Using DMA, 4-bit mode
NET: Registered protocol family 10
sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
NET: Registered protocol family 17
4 i9 J% Z3 {1 {  j7 sconsole [netcon0] enabled
6 r  e, M( ^* {# t$ Unetconsole: network logging started
' H7 z0 x* x0 u6 e8 v( Edavinci_emac davinci_emac.1: using random MAC addr: 0a:ed:9e:24:43:89
3 D% F8 s( @1 khctosys: unable to open rtc device (rtc0)
, F8 F0 {& m8 v+ y" F( l4 {2 Nlibphy: PHY davinci_mdio-0:07 not found
* _: u; n4 A' a3 k. g7 H/ snet eth0: could not connect to phy davinci_mdio-0:07
7 }5 G8 R& l. K2 p( ]IP-Config: Failed to open eth0
! v) o* O, f- S  B  A8 _" }IP-Config: No network devices available
mmc0: host does not support reading read-only switch, assuming write-enable
+ _, n0 M3 `/ g* ~mmc0: new high speed SDHC card at address 59b4
mmcblk0: mmc0:59b4 SS08G 7.41 GiB
, T1 |5 S2 E1 r5 O mmcblk0: p1 p2
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6 E; t$ B- @: F3 c& R% K/* 此处等待了一段时间 */

' S( n& a! T4 X% T& r6 Trandom: fast init done
VFS: Unable to mount root fs via NFS, trying floppy.
1 ]" D. |3 q) e6 f, b" U0 SVFS: Cannot open root device "nfs" or unknown-block(2,0): error -6
) Q; j  n; E1 m+ F: HPlease append a correct "root=" boot option; here are the available partitions:
+ ]: J2 h9 l! J: }% k0100           32768 ram0  (driver?)
6 S" {) d8 N3 A/ \0 o2 l0 K  @b300         7764992 mmcblk0  driver: mmcblk
  b301           71680 mmcblk0p1 cd4e1bc4-01
  b302         7675904 mmcblk0p2 cd4e1bc4-02                          
5 |+ e% d* R: P6 XKernel panic - not syncing: VFS: Unable to mount root fs on unknown-block

uestczwj

应该是如下错误造成NFS失败：

libphy: PHY davinci_mdio-0:07 not found
  }" B2 R9 s7 E, Tnet 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
& D" P8 l7 [; b9 S) W. r应该是如下错误造成NFS失败：
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libphy: 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。