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

6 |/ [" D: C7 T8 F( W! |4 `9 _! j2.  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 s* \3 y  K# [% b0 I! B6 |+ o; S: [: E
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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$ Q, l5 H, v# usetenv uboot_macaddr 1
setenv ethaddr 00:0c:29:bc:7e:9a
setenv serverip 192.168.2.192
setenv ipaddr 192.168.2.191

( l$ U% w7 u; |2 Nbootcmd=tftp c0700000 zImage;bootz c0700000
% i2 `" p8 p" j3 M( O+ Z
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

' e4 M2 b( g; P2 |; I4. 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
TFTP from server 192.168.2.192; our IP address is 192.168.2.191
* |* X6 G7 N4 R$ F% c* CFilename 'zImage'.
Load address: 0xc0700000
Loading: #################################################################
- Y8 k5 a: \: A; ?         #################################################################
         ################################
6 @2 L! D1 a  Q( j" [8 i0 a         288.1 KiB/s
done
Bytes transferred = 2367360 (241f80 hex)

; Z( J* o, ?1 sStarting kernel ...

, A( d3 _, R5 KUncompressing Linux... done, booting the kernel.
8 u) Y2 \4 K/ T& a: a, _' tBooting Linux on physical CPU 0x0
Linux 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
% ?7 V- o3 A5 K' ~5 rCPU: VIVT data cache, VIVT instruction cache
Machine: AM18x/OMAP-L138 Hawkboard
) f7 u7 X, [; K3 L' l8 E5 K$ _* ~- rda8xx_rproc_reserve_cma: 'rproc_mem=nn@address' badly specified
! t+ r$ g+ ]3 w6 A" O( v$ V" t    'nn' and 'address' must both be non-zero
6 y5 z' i" _" `. j4 o4 i% Dcma: Reserved 16 MiB at 0xc6c00000
Memory policy: Data cache writethrough
- ], H/ W, t1 a0 P$ ]) i: TDaVinci da850/omap-l138/am18x variant 0x1
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)
Memory: 106592K/131072K available (4529K kernel code, 308K rwdata, 1500K rodata, 228K init, 162K bss, 8096K reserved, 16384K cma-reserved)
Virtual kernel memory layout:
4 _. j1 A/ j: t: g  [) \    vector  : 0xffff0000 - 0xffff1000   (   4 kB)
! x5 a& M. J* L$ F5 x/ F7 m. b    fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
3 v- u2 R; j6 s; A+ \7 k( Y    vmalloc : 0xc8800000 - 0xff800000   ( 880 MB)
7 O1 f. ^" t7 b    lowmem  : 0xc0000000 - 0xc8000000   ( 128 MB)
# }- s9 @+ g$ G# f$ d5 U# d: V    modules : 0xbf000000 - 0xc0000000   (  16 MB)
  z" ^' L  }7 e  s      .text : 0xc0008000 - 0xc0474b38   (4531 kB)
      .init : 0xc05ed000 - 0xc0626000   ( 228 kB)
% r/ D  J5 I8 a( }# ?4 K/ X3 B      .data : 0xc0626000 - 0xc0673110   ( 309 kB)
       .bss : 0xc0673110 - 0xc069bc08   ( 163 kB)
SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Preemptible hierarchical RCU implementation.
4 v5 w8 f6 u7 H' u" V        Build-time adjustment of leaf fanout to 32.
' N# g- d) P0 T) w( g9 bNR_IRQS:245
4 K  C6 o/ }$ Iclocksource: timer0_1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
& U, n2 w) ?" T$ T2 Y, h& r8 P; yConsole: colour dummy device 80x30
Calibrating delay loop... 227.32 BogoMIPS (lpj=1136640)
pid_max: default: 32768 minimum: 301
4 L. e, t0 Z3 e$ F" s) bMount-cache hash table entries: 1024 (order: 0, 4096 bytes)
8 c2 P) }7 l' a) k2 C( NMountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
CPU: Testing write buffer coherency: ok
3 s0 E" H* T+ m  o6 C2 S" G# ^Setting up static identity map for 0xc0008400 - 0xc0008458
# i) V6 e3 i. o  Rdevtmpfs: initialized
! W9 U$ r8 ~/ a  M3 `: `0 rVFP support v0.3: not present
clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
) m+ W$ s. n0 kfutex hash table entries: 256 (order: -1, 3072 bytes)
pinctrl core: initialized pinctrl subsystem
NET: Registered protocol family 16
$ F% D3 R3 ?3 {: xDMA: preallocated 256 KiB pool for atomic coherent allocations
cpuidle: using governor ladder
" @* {8 v7 [$ b4 h8 V- ~5 ^cpuidle: using governor menu
EMAC: MII PHY configured
mux: initialized GPIO3_12
mux: Setting register GPIO3_12
mux:    PINMUX7 (0x0000001c) = 0x00110110 -> 0x00118110
8 J5 i, ^. r0 M" Z6 Fmux: initialized GPIO3_13
9 }! |$ l# {/ O" Cmux: Setting register GPIO3_13
6 {( O' S3 O" F) E9 emux:    PINMUX7 (0x0000001c) = 0x00118110 -> 0x00118810
mux: initialized GPIO2_4
mux: Setting register GPIO2_4
0 Q, ]& |6 \1 d) S1 U5 V4 {mux:    PINMUX6 (0x00000018) = 0x00000000 -> 0x00008000
3 ^7 N8 [/ {8 ^) X, Vmux: initialized GPIO6_13
7 F7 R% o9 _5 \  Mmux: Setting register GPIO6_13
  j6 a% v$ y- i. P% g6 s+ k, \6 I5 Rmux:    PINMUX13 (0x00000034) = 0x00000000 -> 0x00000800
da8xx_register_rproc: memory not reserved for DSP, not registering DSP device
omapl138_hawk_init: dsp/rproc registration failed: -12
edma edma.0: Legacy memcpy is enabled, things might not work
2 A% x- t9 F5 Y$ }7 H  aedma edma.0: TI EDMA DMA engine driver
edma edma.1: Legacy memcpy is enabled, things might not work
- ]# z- L3 T* l) d% W9 F4 pedma edma.1: TI EDMA DMA engine driver
clocksource: Switched to clocksource timer0_1
: S( U- Q: U' S" h$ ?8 O( n' NNET: Registered protocol family 2
TCP established hash table entries: 1024 (order: 0, 4096 bytes)
- [4 q! N. R0 a! m7 nTCP 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)
5 P  M7 K) q% x  s& W% _) h0 _/ qUDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
NET: Registered protocol family 1
% n1 u# V- f6 ORPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
3 x; C, f- \* V1 ERPC: Registered tcp transport module.
. o  @6 Z5 Y) N( V8 rRPC: Registered tcp NFSv4.1 backchannel transport module.
; w' S: X; r6 K. ~. yworkingset: timestamp_bits=14 max_order=15 bucket_order=1
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
! ]% ?- G6 a  P2 V( e9 Rio 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
* T$ ?! r0 u. ^: M. userial8250.2: ttyS2 at MMIO 0x1d0d000 (irq = 61, base_baud = 8250000) is a 16550A
console [ttyS2] enabled
brd: module loaded
" y/ Q4 c+ x  rlibphy: Fixed MDIO Bus: probed
- }5 e; O0 }- L3 k: l: odavinci_mdio davinci_mdio.0: davinci mdio revision 1.5
davinci_mdio davinci_mdio.0: detected phy mask fffffffe
+ F( ~, {: _8 v5 v6 Y) Z& @/ x# Vlibphy: davinci_mdio.0: probed
davinci_mdio davinci_mdio.0: phy[0]: device davinci_mdio-0:00, driver SMSC LAN8710/LAN8720
# d2 @3 n* e* h& ]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
. N+ d8 g7 y3 k/ B3 \davinci_mmc da830-mmc.0: Using DMA, 4-bit mode
3 w/ n  r, |7 N' ]% xNET: Registered protocol family 10
sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
NET: Registered protocol family 17
console [netcon0] enabled
netconsole: network logging started
7 E; E7 `# s  K9 o! [8 D5 Qdavinci_emac davinci_emac.1: using random MAC addr: 0a:ed:9e:24:43:89
" }& D9 E- y3 O. Rhctosys: unable to open rtc device (rtc0)
0 P$ v8 [7 t% d* g, w# l( {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
  r8 d) s4 g' x; A0 b  Ummc0: host does not support reading read-only switch, assuming write-enable
  X# f& G4 D/ D4 |mmc0: new high speed SDHC card at address 59b4
mmcblk0: mmc0:59b4 SS08G 7.41 GiB
' F9 ^  b& y) v: L6 M mmcblk0: p1 p2
2 J2 x; Z: t5 n
8 f9 c' E7 {% \! i/* 此处等待了一段时间 */

random: fast init done
VFS: Unable to mount root fs via NFS, trying floppy.
3 E7 j6 ]& X" R' g5 Z4 [# [VFS: Cannot open root device "nfs" or unknown-block(2,0): error -6
Please append a correct "root=" boot option; here are the available partitions:
0100           32768 ram0  (driver?)
( z$ ~& v2 `5 g4 l3 Q. P3 V4 Fb300         7764992 mmcblk0  driver: mmcblk
) y$ T. i( X5 M  P' n  N: d  b301           71680 mmcblk0p1 cd4e1bc4-01
  b302         7675904 mmcblk0p2 cd4e1bc4-02                          
4 N" R; Z( o4 u  @" g+ YKernel 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
* V" u1 g7 U% ]) enet 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
应该是如下错误造成NFS失败：

, L( M: A2 L! R' q$ Glibphy: 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。