Uboot DMA error
imx28_evk 보드에서 전원 on/off 를 하다보면 가끔씩 [read_page] DMA error [read_page] bch timeout!!! 메세지가 발생하고 전에 저장했던 uboot 변수가 날라고 코딩되어있는 uboot 변수만 남아있습니다. 이런 에러 보신적 있으신가요?
U-Boot 2009.08 (Oct 15 2015 - 09:27:42)
Freescale i.MX28 family
CPU: 454 MHz
BUS: 151 MHz
EMI: 205 MHz
GPMI: 24 MHz
DRAM: 128 MB
NAND: Manufacturer : Spansion (0x01)
Device Code : 0xda
Cell Technology : SLC
Chip Size : 256 MiB
Pages per Block : 64
Page Geometry : 2048+64
ECC Strength : 4 bits
ECC Size : 512 B
Data Setup Time : 20 ns
Data Hold Time : 10 ns
Address Setup Time: 20 ns
GPMI Sample Delay : 6 ns
tREA : Unknown
tRLOH : Unknown
tRHOH : Unknown
Description : S34ML02G100TFI000
256 MiB
[read_page] DMA error
[read_page] bch timeout!!!
[gpmi_nfc_ecc_read_page] Error in ECC-based read: -110
*** Warning - bad CRC or NAND, using default environment
In: serial
Out: serial
Err: serial
Net: No ethernet found.
Hit any key to stop autoboot: 0
> saveenv
Saving Environment to NAND...
Erasing Nand...
[send_command] DMA error
Command execute failed!
[read_data] DMA error
NAND 256MiB 3,3V 8-bit: MTD Erase failure: -5
Writing to Nand... [send_command] DMA error
Command execute failed!
[read_data] DMA error
nand_do_write_ops: Device is write protected
FAILED!
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