TL138/6748/1808F-EasyEVM-A2使用ti-processor-sdk-linux-omapl138-lcdk-04.00....

uestczwj · 发表于 2017-9-12 22:16:12

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

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

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
setenv ipaddr 192.168.2.191

bootcmd=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

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'.
Load address: 0xc0700000
Loading: #################################################################
      #################################################################
      ################################
      288.1 KiB/s
done
Bytes transferred = 2367360 (241f80 hex)

Starting kernel ...

Uncompressing 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
CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=0005317f
CPU: VIVT data cache, VIVT instruction cache
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
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:
vector  : 0xffff0000 - 0xffff1000 ( 4 kB)
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)
   .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.
      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
Console: 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)
Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
CPU: 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)
pinctrl core: initialized pinctrl subsystem
NET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
cpuidle: using governor ladder
cpuidle: using governor menu
EMAC: 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
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
omapl138_hawk_init: dsp/rproc registration failed: -12
edma 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
edma 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)
TCP: 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)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: 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)
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
brd: module loaded
libphy: 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
davinci_mdio davinci_mdio.0: phy[0]: device davinci_mdio-0:00, driver SMSC LAN8710/LAN8720
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
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
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
net eth0: could not connect to phy davinci_mdio-0:07
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
mmcblk0: mmc0:59b4 SS08G 7.41 GiB
mmcblk0: p1 p2

/* 此处等待了一段时间 */

random: fast init done
VFS: Unable to mount root fs via NFS, trying floppy.
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?)
b300       7764992 mmcblk0  driver: mmcblk
  b301          71680 mmcblk0p1 cd4e1bc4-01
  b302       7675904 mmcblk0p2 cd4e1bc4-02
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block

uestczwj · 发表于 2017-9-12 22:25:21

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 · 发表于 2017-9-15 21:45:33

uestczwj 发表于 2017-9-12 22:25
- Z7 G6 I" F0 j* p应该是如下错误造成NFS失败：) p3 [2 I/ }+ M
2 k8 w5 \/ L6 F9 l c
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。

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[未解决] TL138/6748/1808F-EasyEVM-A2使用ti-processor-sdk-linux-omapl138-lcdk-04.00....

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