猫盘故障机的自我救赎

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入手一台伊拉克成色猫盘故障机，连好ttl上电以后
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1. TIM-1.0
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2. WTMI-armada-17.10.1-
   
3. .........
   
4. SF: Detected GD25LQ64C with page size 256 Bytes, erase size 4 KiB, total 8 MiB
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5. *** Warning - bad CRC, using default environment
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6. 
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7. MMC:   for ssg ledsdhci@d8000: 0
   
8. ** File not found boot/armada-3720-customer0.dtb **
   
9. ** File not found boot/armada-3720-customer0-minifs.dtb **
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10. test_mmc_ext4_exist ==1
    
11. Comphy-0: UNCONNECTED  
    
12. Comphy-1: UNCONNECTED  
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13. Comphy-2: UNCONNECTED  
    
14. gpio: pin GPIO23 (gpio 39) value is 1
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15. ** File not found boot/armada-3720-customer0.dtb **
    
16. ** File not found boot/armada-3720-customer0-minifs.dtb **
    
17. Enter Recovery mode
    
18. SCSI:  Hit any key to stop autoboot:  0

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发现无法找到dtd文件，进入了恢复模式，直接启动或按住reset启动均启动失败，启动信息如下:

1. Marvell>> boot
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2. SF: Detected GD25LQ64C with page size 256 Bytes, erase size 4 KiB, total 8 MiB
   
3. device 0 offset 0xcc000, size 0x434000
   
4. SF: 4407296 bytes @ 0xcc000 Read: OK
   
5. gpio: pin GPIO21 (gpio 37) value is 1
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6. gpio: pin GPIO22 (gpio 38) value is 1
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7. Uncompressed size: 8992256 = 0x893600
   
8. device 0 offset 0xc8000, size 0x4000
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9. SF: 16384 bytes @ 0xc8000 Read: OK
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10. ## Flattened Device Tree blob at 04f00000
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11.    Booting using the fdt blob at 0x4f00000
    
12.    Using Device Tree in place at 0000000004f00000, end 0000000004f05df8
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13. 
    
14. Starting kernel ...
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15. 
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16. .........
    
17. [    2.786623]  mmcblk0: p1 p2 p3
    
18. [    2.801201] Starting init: /sbin/init exists but couldn't execute it (error -5)
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19. [    2.813804] cramfs: bad compressed blocksize 4294298135
    
20. [    2.819206] Starting init: /bin/sh exists but couldn't execute it (error -5)
    
21. [    2.826452] Kernel panic - not syncing: No working init found.  Try passing init= option to kernel. See Linux Documentation/init.txt for guidance.
    
22. [    2.840101] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.4.52-armada-17.10.1 #21
    
23. [    2.847399] Hardware name: Marvell Armada 3720 for Eli-Cat DB-88F3720-DDR3 (DT)
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24. [    2.854957] Call trace:
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25. [    2.857401] [<ffffffc000089b10>] dump_backtrace+0x0/0x108
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26. [    2.863150] [<ffffffc000089c2c>] show_stack+0x14/0x20
    
27. [    2.868371] [<ffffffc00029f280>] dump_stack+0x98/0xb8
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28. [    2.873592] [<ffffffc00012b32c>] panic+0xd4/0x218
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29. [    2.878454] [<ffffffc000621d0c>] kernel_init+0xdc/0xe0
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30. [    2.883761] [<ffffffc000085dd0>] ret_from_fork+0x10/0x40
    
31. [    2.888890] CPU0: stopping
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32. [    2.891949] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.4.52-armada-17.10.1 #21
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33. [    2.899505] Hardware name: Marvell Armada 3720 for Eli-Cat DB-88F3720-DDR3 (DT)
    
34. [    2.907154] Call trace:
    
35. [    2.909861] [<ffffffc000089b10>] dump_backtrace+0x0/0x108
    
36. [    2.915269] [<ffffffc000089c2c>] show_stack+0x14/0x20
    
37. [    2.920580] [<ffffffc00029f280>] dump_stack+0x98/0xb8
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38. [    2.925892] [<ffffffc00008efc0>] handle_IPI+0x190/0x1a0
    
39. [    2.931030] [<ffffffc000082598>] gic_handle_irq+0x78/0x168
    
40. [    2.936969] Exception stack(0xffffffc0008abda0 to 0xffffffc0008abed0)
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41. [    2.943547] bda0: ffffffc0008ae000 0000008000000000 ffffffc0008abf00 ffffffc000086840
    
42. [    2.951467] bdc0: 0000000000000145 ffffffc000890000 0000000000000000 0000000000000000
    
43. [    2.959567] bde0: 0000000000000001 0000000000000000 00000000000001c0 0100000000000000
    
44. [    2.967757] be00: 0000000000000001 ffffffc01bfcddc0 00000000fffeddda ffffffc0008abe80
    
45. [    2.975676] be20: 00000000000006d0 0000000000000000 0000000000000000 00000000058e8eff
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46. [    2.983954] be40: ffffffc00426c260 00000000000075af 00000000000ba7a2 0000000000000000
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47. [    2.991876] be60: ffffff8000058548 ffffffc0008ae000 ffffffc0008ae8d8 ffffffc00088cad8
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48. [    2.999886] be80: ffffffc0008abf20 ffffffc000631000 ffffffc000890000 ffffffc0008ae000
    
49. [    3.007986] bea0: ffffffc0008a8000 0000000000000000 0000000000000000 ffffffc0008abf00
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50. [    3.016353] bec0: ffffffc00008683c ffffffc0008abf00
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51. [    3.021215] [<ffffffc000085700>] el1_irq+0x80/0xf8
    
52. [    3.026168] [<ffffffc0000d8164>] default_idle_call+0x1c/0x38
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53. [    3.032373] [<ffffffc0000d8398>] cpu_startup_entry+0x1c8/0x218
    
54. [    3.038411] [<ffffffc000621c20>] rest_init+0x88/0x98
    
55. [    3.043192] [<ffffffc00084d950>] start_kernel+0x384/0x398
    
56. [    3.048948] [<0000000000627000>] 0x627000
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57. [    3.053272] ---[ end Kernel panic - not syncing: No working init found.  Try passing init= option to kernel. See Linux Documentation/init.txt for guidance.

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uboot 下获取的一些信息

1. # 查看文件夹 发现boot为空
   
2. Marvell>> ext4ls mmc 0:1 /boot
   
3. <DIR>       4096 .
   
4. <DIR>       4096 ..
   
5. 
   
6. # 无法启动usb
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7. Marvell>> usb start
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8. starting USB...
   
9. No controllers found

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猜测可能是误删了/boot下的文件导致的，无法通过U盘启动
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0 p- d% q; L5 C  g& l3 s启动进入uboot输入如下命令

1. setenv bootcmd "sf probe 0;sf read 0x8000000 0x0CC000 0x434000;gpio set GPIO21;gpio set GPIO22;unzip 0x8000000 0x5000000;sf read 0x4f00000 0x0c8000 4000;"
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2. setenv bootargs "console=ttyMV0,115200 root=/dev/mmcblk0p1 rootwait rw init=/bin/sh"
   
3. boot
   
4. booti 0x5000000 - 0x4f00000

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即可进入linux shell

1. # 查看存储设备
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2. ls -l /dev/sd
   
3. 
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4. # 挂载
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5. mount -t proc /proc
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6. mount /dev/sda4 /mnt
   
7. 
   
8. # 拷贝文件
   
9. cd /mnt
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10. cp armada-3720-customer0.dtb /boot/
    
11. cp Image /boot/
    
12. 
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13. # 退出
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14. exit

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重新插拔电源后恢复正常,uboot信息如下：
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1. TIM-1.0
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2. WTMI-armada-17.10.1-
   
3. ENTER init_ddrgen
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4. DDR_TOPOLOGY is 0 :        DDR3, 1CS 512M
   
5. WTMI_CLOCK=2
   
6. 
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7. Fill memory before self refresh...done
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8. 
   
9. Now in Self-refresh Mode
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10. Restore CAS Read and Write Latency
    
11. Restore termination values to original values
    
12. Exited self-refresh ...
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13. 
    
14. DLL TUNING
    
15. ==============
    
16.    DLL 0xc0001050[21:16]: [0,31,18]
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17.    DLL 0xc0001050[29:24]: [0,2b,15]
    
18.    DLL 0xc0001054[21:16]: [0,32,19]
    
19.    DLL 0xc0001054[29:24]: [0,2d,16]
    
20.    DLL 0xc0001074[21:16]: [0,3f,1f]
    
21.    DLL 0xc0001074
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22. 
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23. U-Boot 2017.03-armada-17.10.1 (Mar 07 2018 - 17:11:33 +0800)
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24. 
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25. Model: Marvell Armada 3720 for Eli Cat
    
26.        CPU    @ 1000 [MHz]
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27.        L2     @ 800 [MHz]
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28.        TClock @ 200 [MHz]
    
29.        DDR    @ 800 [MHz]
    
30. I2C:   ready
    
31. DRAM:  512 MiB
    
32. U-Boot DT blob at : 000000001f73a520
    
33. SF: Detected GD25LQ64C with page size 256 Bytes, erase size 4 KiB, total 8 MiB
    
34. *** Warning - bad CRC, using default environment
    
35. 
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36. MMC:   for ssg ledsdhci@d8000: 0
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37. 12931 bytes read in 16 ms (789.1 KiB/s)
    
38. gpio: pin GPIO23 (gpio 39) value is 1
    
39. gpio: pin GPIO23 (gpio 39) value is 1
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40. gpio: pin GPIO23 (gpio 39) value is 1
    
41. Comphy-0: USB3_HOST0    5 Gbps   
    
42. Comphy-1: SGMII0        1.25 Gbps
    
43. Comphy-2: SATA0         6 Gbps   
    
44. gpio: pin GPIO23 (gpio 39) value is 1
    
45. 12931 bytes read in 4 ms (3.1 MiB/s)
    
46. Enter Normal mode
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47. SCSI:  Hit any key to stop autoboot:  0

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( W# M( z' H# Q! O' k' ?5 R8 u补充下:这样修改后，只能一次有效请删除mmc 0:3 分区的rootfs.tar.bz2和upgrade_eli_38.img文件。
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按照你这个执行不成功啊

GokuSun 发表于 2019-10-9 20:25
8 h& B# W' A; {3 i! j按照你这个执行不成功啊

* ]1 b& L" Q7 I8 j; K! c还是提示找不到？

顶一下顶一下

tymfl 发表于 2019-10-9 20:36
还是提示找不到？

是还是原样子，启动还是end Kernel panic - not syncing: No working init found.  Try passing init= option to kernel. See Linux Documentation/init.txt for guidance.
完全按照您的步骤做的