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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* D* ~  b3 F# x# y5 g5 h% B7 H1.  在ubantu16.04（64bit）按照官网安装ti-processor-sdk-linux-omapl138-lcdk-04.00.00.04-Linux-x86-Install.bin

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）：

setenv uboot_macaddr 1
setenv ethaddr 00:0c:29:bc:7e:9a
setenv serverip 192.168.2.192
6 `! D+ ?% S& [( v# S' F+ ^setenv ipaddr 192.168.2.191

. [7 F: ~( d& P/ z: pbootcmd=tftp c0700000 zImage;bootz c0700000
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! `* q: y1 {2 a3 h: Ubootargs=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

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：

=> boot
Using DaVinci-EMAC device
TFTP from server 192.168.2.192; our IP address is 192.168.2.191
Filename 'zImage'.
! c4 @( s, I8 A% N1 N! vLoad address: 0xc0700000
Loading: #################################################################
+ ]  q' l2 @$ O0 I  B7 ?. X, l         #################################################################
         ################################
         288.1 KiB/s
done
Bytes transferred = 2367360 (241f80 hex)
* ^/ ^: Q( X/ S( x+ R
0 z3 X; Z9 c! J& q1 GStarting kernel ...
5 |% B6 y6 G; ]  h9 ]
4 X' d$ M1 ?8 f' i/ PUncompressing 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
2 d5 C/ X* J; MCPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=0005317f
CPU: VIVT data cache, VIVT instruction cache
Machine: AM18x/OMAP-L138 Hawkboard
1 y. r) g3 n) z2 D2 Cda8xx_rproc_reserve_cma: 'rproc_mem=nn@address' badly specified
! W: O& h  m( |+ I6 m; r    'nn' and 'address' must both be non-zero
$ W4 N& c4 g/ o# r) u9 B: L6 dcma: Reserved 16 MiB at 0xc6c00000
) p/ h0 V2 T% a& @7 L" @4 MMemory policy: Data cache writethrough
DaVinci da850/omap-l138/am18x variant 0x1
5 q( x& [& @5 S' `) zBuilt 1 zonelists in Zone order, mobility grouping on.  Total pages: 32480
. [1 l7 ?6 ^  A* ~; f  \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)
; J3 x, e9 @0 bInode-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)
! q' O6 |) m7 f: d# z" X. zVirtual kernel memory layout:
: I3 W) l! }  H. c4 |" A    vector  : 0xffff0000 - 0xffff1000   (   4 kB)
0 R+ ~0 o) u, Y* T7 D, L    fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
4 G+ ~: _  k% l- I1 `$ y5 z    vmalloc : 0xc8800000 - 0xff800000   ( 880 MB)
2 Q: U) Y8 ~: b" Z, R4 g    lowmem  : 0xc0000000 - 0xc8000000   ( 128 MB)
    modules : 0xbf000000 - 0xc0000000   (  16 MB)
( F( A+ a  E7 {; u3 W& S' G$ B      .text : 0xc0008000 - 0xc0474b38   (4531 kB)
      .init : 0xc05ed000 - 0xc0626000   ( 228 kB)
      .data : 0xc0626000 - 0xc0673110   ( 309 kB)
       .bss : 0xc0673110 - 0xc069bc08   ( 163 kB)
# t+ @+ L1 e5 R& X; j+ \9 }5 f2 R6 ySLUB: 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
sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
) r9 `8 Z* t# R1 p  W# @8 b4 VConsole: colour dummy device 80x30
Calibrating delay loop... 227.32 BogoMIPS (lpj=1136640)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
4 a" Z# o5 w8 cMountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
$ t* H9 r( I2 _6 m( q- d" jCPU: 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
futex hash table entries: 256 (order: -1, 3072 bytes)
3 G/ _. c* ^, D5 Z4 v# [pinctrl core: initialized pinctrl subsystem
NET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
) [! V: R0 @+ b4 V* scpuidle: using governor ladder
# C2 M1 y7 f/ J: e/ A% p+ }cpuidle: using governor menu
7 d4 I4 g2 B) u, k* w+ z  HEMAC: MII PHY configured
mux: initialized GPIO3_12
mux: Setting register GPIO3_12
mux:    PINMUX7 (0x0000001c) = 0x00110110 -> 0x00118110
mux: initialized GPIO3_13
mux: Setting register GPIO3_13
mux:    PINMUX7 (0x0000001c) = 0x00118110 -> 0x00118810
( J* x, U2 H& |5 G; X8 Qmux: initialized GPIO2_4
mux: Setting register GPIO2_4
4 o2 T& m* W7 @1 x* x, xmux:    PINMUX6 (0x00000018) = 0x00000000 -> 0x00008000
mux: initialized GPIO6_13
: E7 C$ s: e3 U1 h# Lmux: Setting register GPIO6_13
mux:    PINMUX13 (0x00000034) = 0x00000000 -> 0x00000800
da8xx_register_rproc: memory not reserved for DSP, not registering DSP device
omapl138_hawk_init: dsp/rproc registration failed: -12
( Y! C6 B7 y2 i- o. Z5 A2 aedma edma.0: Legacy memcpy is enabled, things might not work
/ g: C7 t/ |8 s/ ]5 dedma edma.0: TI EDMA DMA engine driver
- y2 P& W( w* L3 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
" i+ ?/ e4 K% ?$ jNET: Registered protocol family 2
0 x7 z% @4 J0 n0 [4 lTCP established hash table entries: 1024 (order: 0, 4096 bytes)
TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
2 v8 X$ p- b' X3 N; H/ m  p4 E) TTCP: 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)
/ U$ s- i% i( `: F$ \6 m6 ONET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
9 K( \5 D: g: j% _RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
$ m/ b: D6 U% s2 T5 Q: Y8 Yworkingset: timestamp_bits=14 max_order=15 bucket_order=1
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
io scheduler noop registered (default)
# j+ I2 t; x4 W/ FSerial: 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
0 Q" p) G7 g/ V3 H3 x& kserial8250.2: ttyS2 at MMIO 0x1d0d000 (irq = 61, base_baud = 8250000) is a 16550A
  c1 G+ q" i+ j# T9 Y# m) Sconsole [ttyS2] enabled
8 `$ l/ I  }0 d! N; V. nbrd: module loaded
2 F1 {2 y1 @) H" X! V: X& @+ g/ J" olibphy: Fixed MDIO Bus: probed
davinci_mdio davinci_mdio.0: davinci mdio revision 1.5
davinci_mdio davinci_mdio.0: detected phy mask fffffffe
libphy: davinci_mdio.0: probed
: x/ x4 S( T% k8 ldavinci_mdio davinci_mdio.0: phy[0]: device davinci_mdio-0:00, driver SMSC LAN8710/LAN8720
2 N2 j/ m5 M$ i- Pi2c /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
# [) m0 m, J1 p7 N1 pdavinci_mmc da830-mmc.0: Using DMA, 4-bit mode
NET: Registered protocol family 10
: k# ^! T, @; \8 `9 _' o7 Ssit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
- f3 L, |6 d7 b% d$ L0 U1 e) PNET: 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
1 U2 k8 b' _7 h: |! ~7 Shctosys: 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
( ?& I  t' i& `8 d' |7 TIP-Config: Failed to open eth0
IP-Config: No network devices available
6 p- J% n& }6 j/ E" |9 S1 Gmmc0: host does not support reading read-only switch, assuming write-enable
mmc0: new high speed SDHC card at address 59b4
& f7 }3 [- I2 t- h- o% e$ emmcblk0: mmc0:59b4 SS08G 7.41 GiB
mmcblk0: p1 p2
; [. S1 O# w$ L4 P8 S4 w
9 C3 m3 _7 M( j* h0 D# W& s6 L7 I/* 此处等待了一段时间 */

; t( e; f! l% prandom: fast init done
  s( ~* u/ w) G* m, E" \VFS: Unable to mount root fs via NFS, trying floppy.
7 I% y& v# E  P, r! I- RVFS: Cannot open root device "nfs" or unknown-block(2,0): error -6
. w5 e1 ~* Z, q! S$ ]Please append a correct "root=" boot option; here are the available partitions:
2 I3 w( u# x) B# t4 S0100           32768 ram0  (driver?)
b300         7764992 mmcblk0  driver: mmcblk
) G& W& @$ g3 |/ ^8 U3 I  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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( ^% w8 S; W, ~- n! plibphy: PHY davinci_mdio-0:07 not found
net eth0: could not connect to phy davinci_mdio-0:07
* s6 i* H# t( c" X: e; QIP-Config: Failed to open eth0
0 O2 r4 ^! ^4 q$ O! a: [; @1 aIP-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：
- \+ K) h& ~! r$ H2 \9 I" |
libphy: PHY davinci_mdio-0:07 not found

2 Y/ {9 s/ `$ e) v) {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。