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

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
0 i, ]' c$ l" U. A' {. P! {; {
! q/ v. n4 x1 l3 P+ @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
$ h* z5 E' ]9 a1 `
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
+ _* j8 ~( t" g' d0 H$ C
8 A: {; O* C( E( F9 nuboot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）：
! Y, \# P, w* s% V. ?6 `. b$ H
setenv uboot_macaddr 1
setenv ethaddr 00:0c:29:bc:7e:9a
setenv serverip 192.168.2.192
; W4 i" M, k; Q6 B) Q9 \. R3 dsetenv ipaddr 192.168.2.191

. j8 e1 w: G2 G+ Ibootcmd=tftp c0700000 zImage;bootz c0700000
! X, {$ ~% }8 M+ g. X
$ }% y7 r1 @0 r4 h4 I, U5 ~* ebootargs=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
" @+ [6 u) x; Y% F1 Y+ g" A5 K+ e5 {
6 ?7 `5 F- \/ h& A8 q/ O1 }' v! Z4. 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：

7 v* e5 }; e' @/ T2 S  O=> boot
3 Q* R& {  G. j' [, e/ jUsing DaVinci-EMAC device
TFTP from server 192.168.2.192; our IP address is 192.168.2.191
Filename 'zImage'.
Load address: 0xc0700000
Loading: #################################################################
" D+ w* _; m8 Z0 [2 H7 ~1 a         #################################################################
' P" ~" B% ?  p6 W         ################################
$ y! g: k4 g( M( ]- r         288.1 KiB/s
done
  r4 P( {+ f, H1 q; w$ L% i0 XBytes transferred = 2367360 (241f80 hex)
- a. r0 Z* V2 W# n5 t( Q9 ?9 [
Starting kernel ...

* E: q9 r8 _. ^. i) ]% IUncompressing Linux... done, booting the kernel.
Booting 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
/ ^! d$ b' N/ \. C$ a1 d1 iCPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=0005317f
CPU: VIVT data cache, VIVT instruction cache
Machine: AM18x/OMAP-L138 Hawkboard
# S, ^3 ?) j* G. {2 l6 u& y( H! d2 c3 Zda8xx_rproc_reserve_cma: 'rproc_mem=nn@address' badly specified
: B) U6 ?, `) r* \9 C1 k; j  `    '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
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)
& U, a% m; B6 k9 f3 o) O# k$ nDentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
8 S9 w, I0 j7 `9 h) J6 e8 h  sMemory: 106592K/131072K available (4529K kernel code, 308K rwdata, 1500K rodata, 228K init, 162K bss, 8096K reserved, 16384K cma-reserved)
" |  S  ^6 ]% }" e+ @4 \Virtual kernel memory layout:
8 g1 p; y4 p2 N$ ~# U: q0 I    vector  : 0xffff0000 - 0xffff1000   (   4 kB)
% Q* e6 s7 s& V) o! l. ]8 P    fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
    vmalloc : 0xc8800000 - 0xff800000   ( 880 MB)
5 J1 b5 ^) @( `) V' C0 r    lowmem  : 0xc0000000 - 0xc8000000   ( 128 MB)
    modules : 0xbf000000 - 0xc0000000   (  16 MB)
  R3 o+ b( \2 Z2 ~' e( F2 |+ ]% c      .text : 0xc0008000 - 0xc0474b38   (4531 kB)
      .init : 0xc05ed000 - 0xc0626000   ( 228 kB)
' z2 N4 Z1 o# X      .data : 0xc0626000 - 0xc0673110   ( 309 kB)
+ w# p* c9 V* M( R' Y$ Q       .bss : 0xc0673110 - 0xc069bc08   ( 163 kB)
( Y9 }; o$ Y0 h/ ^* X, qSLUB: 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
5 l* d' ~$ s0 n7 n- p5 Gsched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
; n! C2 r! T6 P5 t, A; K( J2 w9 d2 aConsole: colour dummy device 80x30
" i& s$ A- ?8 P- |& {* N4 {: _- kCalibrating delay loop... 227.32 BogoMIPS (lpj=1136640)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
, N( Y+ j9 b! k8 b2 T+ MMountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
CPU: Testing write buffer coherency: ok
  ?% g- t7 R( }9 RSetting up static identity map for 0xc0008400 - 0xc0008458
devtmpfs: initialized
' X0 b$ ]+ u* V" t7 bVFP support v0.3: not present
clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
8 Y3 _$ y6 G$ J2 K2 u; Zfutex hash table entries: 256 (order: -1, 3072 bytes)
- l2 x; }4 d. Jpinctrl core: initialized pinctrl subsystem
+ `5 t( O% Z! N2 k& K: E2 }6 oNET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
cpuidle: using governor ladder
9 C, d% @% I; H! a* T( xcpuidle: using governor menu
EMAC: MII PHY configured
mux: initialized GPIO3_12
mux: Setting register GPIO3_12
1 ^7 J2 N: g# Q8 @6 gmux:    PINMUX7 (0x0000001c) = 0x00110110 -> 0x00118110
mux: initialized GPIO3_13
mux: Setting register GPIO3_13
+ O9 y# r  O! p2 B0 N& o# H0 ]mux:    PINMUX7 (0x0000001c) = 0x00118110 -> 0x00118810
& P9 ^4 C) {, |- B( |mux: initialized GPIO2_4
mux: Setting register GPIO2_4
mux:    PINMUX6 (0x00000018) = 0x00000000 -> 0x00008000
mux: initialized GPIO6_13
mux: Setting register GPIO6_13
mux:    PINMUX13 (0x00000034) = 0x00000000 -> 0x00000800
da8xx_register_rproc: memory not reserved for DSP, not registering DSP device
, ]9 S/ u' S% X; l# p4 Jomapl138_hawk_init: dsp/rproc registration failed: -12
  O. O% x8 b! Cedma edma.0: Legacy memcpy is enabled, things might not work
edma edma.0: TI EDMA DMA engine driver
edma edma.1: Legacy memcpy is enabled, things might not work
% Q% u  ]+ W& Eedma edma.1: TI EDMA DMA engine driver
clocksource: Switched to clocksource timer0_1
NET: Registered protocol family 2
TCP established hash table entries: 1024 (order: 0, 4096 bytes)
TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
1 x' Q- \$ S) f0 ^1 |' q* jTCP: Hash tables configured (established 1024 bind 1024)
; \4 V. e9 [! i& ]/ AUDP hash table entries: 256 (order: 0, 4096 bytes)
$ F; |; l; f4 U) ~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.
; Q8 p9 w. x! c; v9 W! HRPC: Registered tcp transport module.
0 s5 {2 o, }8 ^' u$ a/ u8 LRPC: Registered tcp NFSv4.1 backchannel transport module.
workingset: timestamp_bits=14 max_order=15 bucket_order=1
* l9 R  v: L$ rBlock layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
% p8 k" W0 W; {7 Yio 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
/ \! g9 J( e2 Fserial8250.1: ttyS1 at MMIO 0x1d0c000 (irq = 53, base_baud = 8250000) is a 16550A
; _1 C$ M6 c( L" y+ @" \2 U& Iserial8250.2: ttyS2 at MMIO 0x1d0d000 (irq = 61, base_baud = 8250000) is a 16550A
) F5 K; Y, Q5 u* {console [ttyS2] enabled
brd: module loaded
, b! O' Q% `: x  a8 tlibphy: Fixed MDIO Bus: probed
davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
! |, y) k* i( q& O0 idavinci_mdio davinci_mdio.0: detected phy mask fffffffe
# U) \% [1 S8 X( llibphy: davinci_mdio.0: probed
  x2 q2 r" H  h& W! V4 ^. M3 Udavinci_mdio davinci_mdio.0: phy[0]: device davinci_mdio-0:00, driver SMSC LAN8710/LAN8720
4 M/ {. C/ [4 D0 P4 b5 b& gi2c /dev entries driver
, J( m, j# q0 t1 Xdavinci_mmc da830-mmc.0: cannot find GPIO chip davinci_gpio.1
9 u; j, t* l* Q1 o8 l) F. {: Pdavinci_mmc da830-mmc.0: cannot find GPIO chip davinci_gpio.1
2 ]; x; ~0 T  e0 _# h: idavinci_mmc da830-mmc.0: Using DMA, 4-bit mode
NET: Registered protocol family 10
sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
( w( |# ~6 H3 g; O* |NET: Registered protocol family 17
console [netcon0] enabled
netconsole: network logging started
5 J8 j5 p3 U$ n5 T2 {4 W! i) F) g% ^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
net eth0: could not connect to phy davinci_mdio-0:07
0 a9 }1 n% B/ A) M! _6 N/ `IP-Config: Failed to open eth0
IP-Config: No network devices available
7 K+ r! N: W/ Q9 Jmmc0: host does not support reading read-only switch, assuming write-enable
mmc0: new high speed SDHC card at address 59b4
+ y: _; o3 ]8 [2 Dmmcblk0: mmc0:59b4 SS08G 7.41 GiB
) W) b3 C, s) ?2 i+ K  R mmcblk0: p1 p2
8 z6 t  Y3 X- K; Z) B' a
5 Q4 B- [) _/ [) {# _/* 此处等待了一段时间 */

' D4 b2 M% e$ R9 z6 E( Zrandom: fast init done
VFS: Unable to mount root fs via NFS, trying floppy.
+ P9 z8 ?; i9 Z/ [" MVFS: 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?)
b300         7764992 mmcblk0  driver: mmcblk
  b301           71680 mmcblk0p1 cd4e1bc4-01
- @( |1 p7 i1 X7 S  h; D  b302         7675904 mmcblk0p2 cd4e1bc4-02                          
6 k, A( w, I0 @) ]Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block

$ e! L: Z2 T! i* {2 @# m! m/ U) I

uestczwj

应该是如下错误造成NFS失败：
  `" B& z' h& y( j1 x
libphy: PHY davinci_mdio-0:07 not found
+ Y, `0 T+ k2 F3 Gnet 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
8 ^1 ?7 \& F' N! x* p应该是如下错误造成NFS失败：

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。