We have a custom board based on AM3352, and the boot sequence is as
follows.
I have 2MB SPI flash, where in I have MLO & u-boot
I want to save kernel & filesystem on NAND.
1) I am able to detect NAND in u-boot
*U-Boot# nand info*
*Device 0: nand0, sector size 128 KiB*
* Page size 2048 b*
* OOB size 64 b*
* Erase size 131072 b*
* subpagesize 512 b*
* options 0x c*
* bbt options 0x 8000*
2) I am unable to find nandecc command, is it mandatory to set the ecc type?
3) My NAND layout contains kernel & filesystem, kernel starting from 0x0 to
0x500000, Booting from uSD I am able to write kernel Image to NAND
Kernel version I have is 3.8 & using dts, so what is the Kernel Image I
have to use, whether *uImage* or *uImage-dtb.bone-black ?*
When I used* uImage-dtb.bone-black,* it starts booting and stops after the
print
* "Uncompressing Linux... done, booting the kernel."*
When I used *uImage* I see the following message.
*U-Boot SPL 2015.07-00260-g7757405-dirty (Oct 07 2015 - 21:17:31)*
*reading u-boot.img*
*reading u-boot.img*
*U-Boot 2015.07-00260-g7757405-dirty (Oct 07 2015 - 21:17:31 +0530)*
* Watchdog enabled*
*I2C: ready*
*DRAM: 256 MiB*
*NAND: 1024 MiB*
*MMC: OMAP SD/MMC: 0*
*SF: Detected M25P16 with page size 256 Bytes, erase size 64 KiB, total 2
MiB*
*Net: cpsw*
*Hit any key to stop autoboot: 0 *
*U-Boot# nand read ${loadaddr} 0x0 0x500000*
*NAND read: device 0 offset 0x0, size 0x500000*
* 5242880 bytes read: OK*
*U-Boot# bootm ${loadaddr}*
*## Booting kernel from Legacy Image at 82000000 ...*
* Image Name: Linux-3.8.13-00774-g18e2dc2*
* Created: 2015-10-12 6:58:20 UTC*
* Image Type: ARM Linux Kernel Image (uncompressed)*
* Data Size: 4363160 Bytes = 4.2 MiB*
* Load Address: 80008000*
* Entry Point: 80008000*
* Verifying Checksum ... OK*
* Loading Kernel Image ... OK*
*Starting kernel ...*
*Uncompressing Linux... done, booting the kernel.*
*Error: unrecognized/unsupported machine ID (r1 = 0x00000e05).*
*Available machine support:*
*ID (hex) NAME*
*ffffffff Generic OMAP4 (Flattened Device Tree)*
*ffffffff Generic AM33XX (Flattened Device Tree)*
*ffffffff Generic OMAP3-GP (Flattened Device Tree)*
*ffffffff Generic OMAP3 (Flattened Device Tree)*
*0000060a OMAP3 Beagle Board*
*00000a9d IGEP OMAP3 module*
*00000928 IGEP v2 board*
*00000ae7 OMAP4 Panda board*
*Please check your kernel config and/or bootloader.*
Please give information which type of kernle Image I have to write to NAND,
should I need to keep another copy of kernel Image ??
How to add NAND device & partitions in kernel dts file, so that it is
detected by kernle?
Please help at the earliest.
Thanks & Regards,
gvk51.
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