Starting kernel...卡住不动的解决方法

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Starting kernel...卡住不动的解决方法

从Uboot启动linux内核老是卡在starting kernel...，那该怎么办呢？


从Tera Term抓出来的log如下

1. U-Boot 2016.03 (Jun 05 2023 - 22:06:18 +0800)
   
2. 
   
3. CPU:   Freescale i.MX6SX rev1.3 at 792MHz
   
4. CPU:   Industrial temperature grade (-40C to 105C) at 38C
   
5. Reset cause: POR
   
6. Board: MX6SX GAGUAR
   
7. I2C:   ready
   
8. DRAM:  512 MiB
   
9. PMIC:  PFUZE100 ID=0x11
   
10. MMC:   FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2
    
11. MMC Device -1 not found
    
12. *** Warning - No MMC card found, using default environment
    
13. 
    
14. Display: Hannstar-XGA (1024x768)
    
15. Video: 1024x768x18
    
16. In:    serial
    
17. Out:   serial
    
18. Err:   serial
    
19. switch to partitions #0, OK
    
20. mmc0 is current device
    
21. Net:   Board Net Initialization Failed
    
22. No ethernet found.
    
23. Normal Boot
    
24. Hit any key to stop autoboot:  0
    
25. MMC Device -1 not found
    
26. no mmc device at slot ffffffff
    
27. MMC Device -1 not found
    
28. no mmc device at slot ffffffff
    
29. MMC Device -1802079595 not found
    
30. ** Bad device mmc 4294967295 **
    
31. reading zImage
    
32. 5582720 bytes read in 274 ms (19.4 MiB/s)
    
33. Booting from mmc ...
    
34. reading imx6sx-gaguar.dtb
    
35. 35148 bytes read in 18 ms (1.9 MiB/s)
    
36. Kernel image @ 0x80800000 [ 0x000000 - 0x552f80 ]
    
37. ## Flattened Device Tree blob at 83000000
    
38.    Booting using the fdt blob at 0x83000000
    
39.    Using Device Tree in place at 83000000, end 8300b94b
    
40. 
    
41. Starting kernel ...

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一、重新启动，打断进入Uboot， 输入命令查看，好像也很正常，可以看到SD上的东西。

1. =>mmc dev 0
   
2. switch to partitions #0, OK
   
3. mmc0 is current device
   
4. => fatls mmc 0
   
5.   5582720   zimage
   
6.             .trash-1000/
   
7.     35148   imx6sx-gaguar.dtb
   
8. 
   
9. 2 file(s), 1 dir(s)
   
10. 
    
11. => mmc dev 2
    
12. switch to partitions #0, OK
    
13. mmc2(part 0) is current device
    
14. =>

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二，查看设备树的兼容属性compatibe，fsl, imx6sx也正常。

1. model = "Freescale i.MX6 SoloX GAGUAR Board";
   
2.   compatible = "fsl,imx6sx-gaguar", "fsl,imx6sx";

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三、怕uboot传递的bootargs不对，直接在加上传递参数，还是不正常

1. 
   
2.   chosen {
   
3.     stdout-path = &uart1;
   
4.     bootargs ="console=ttymxc0,115200 root=/dev/mmcblk0p2 rootwait rw earlyprintk";
   
5.   };

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四，突然看到我的板一直设为otg启动，那时进行ddr stress test设置的，于是改成回去，终于好了

1. U-Boot 2016.03 (Jun 05 2023 - 22:06:18 +0800)
   
2. 
   
3. CPU:   Freescale i.MX6SX rev1.3 at 792MHz
   
4. CPU:   Industrial temperature grade (-40C to 105C) at 43C
   
5. Reset cause: POR
   
6. Board: MX6SX GAGUAR
   
7. I2C:   ready
   
8. DRAM:  512 MiB
   
9. PMIC:  PFUZE100 ID=0x11
   
10. MMC:   FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2
    
11. *** Warning - bad CRC, using default environment
    
12. 
    
13. Display: Hannstar-XGA (1024x768)
    
14. Video: 1024x768x18
    
15. In:    serial
    
16. Out:   serial
    
17. Err:   serial
    
18. switch to partitions #0, OK
    
19. mmc0 is current device
    
20. Net:   Board Net Initialization Failed
    
21. No ethernet found.
    
22. Normal Boot
    
23. Hit any key to stop autoboot:  0
    
24. switch to partitions #0, OK
    
25. mmc0 is current device
    
26. switch to partitions #0, OK
    
27. mmc0 is current device
    
28. reading boot.scr
    
29. ** Unable to read file boot.scr **
    
30. reading zImage
    
31. 5582720 bytes read in 274 ms (19.4 MiB/s)
    
32. Booting from mmc ...
    
33. reading imx6sx-gaguar.dtb
    
34. 35148 bytes read in 18 ms (1.9 MiB/s)
    
35. Kernel image @ 0x80800000 [ 0x000000 - 0x552f80 ]
    
36. ## Flattened Device Tree blob at 83000000
    
37.    Booting using the fdt blob at 0x83000000
    
38.    Using Device Tree in place at 83000000, end 8300b94b
    
39. 
    
40. Starting kernel ...
    
41. 
    
42. Booting Linux on physical CPU 0x0
    
43. Linux version 4.1.15 (ficus@ficuswork) (gcc version 4.9.4 (Linaro GCC 4.9-2017.01) ) #1 SMP PREEMPT Sun Jun 4 19:30:34 CST 2023
    
44. CPU: ARMv7 Processor [412fc09a] revision 10 (ARMv7), cr=10c5387d
    
45. CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
    
46. Machine model: Freescale i.MX6 SoloX GAGUAR Board
    

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