Layerscape中的主题 Re: nor flash verify

nor flash verify

jagxin — Mon, 23 Nov 2015 14:14:02 GMT

hello

I have programmed the nor flash with the rcw generated from the pbl tool ,how to read the values that is in the nor flash

when i read 0XE8000000 I am finding 0xffffffff if when i am executing the commands i was able to read the device id

change p:e8000000 00f0 16bit

change p:e8000aaa 00aa 16bit

change p:e8000554 0055 16bit

change p:e8000aaa 0090 16bit

display p:e8000000..e8000004

display p:e8100000..e8100004

how to find that the code is written to the flash?

Re: nor flash verify

sinanakman — Mon, 23 Nov 2015 15:47:06 GMT

What is the flash you are trying to program.

MT29F4G08ABADAWP you show in the log seems

to be a NAND flash and not a NOR flash.

What is the exact part number of the flash you

are trying to program.

Regards

Sinan Akman

Re: nor flash verify

jagxin — Tue, 24 Nov 2015 02:16:48 GMT

sorry sir the last snap short attached is for nand flash here is the snap for nor flash

how to find that the code is written to the flash?

Re: nor flash verify

sinanakman — Tue, 24 Nov 2015 03:14:05 GMT

Hi agxin

I don't have a CWTAP but you probably

have a "mem" command to display the

memory:

e.g.:

mem 0xe8000000 16

Let me know if this works.

Regards

Sinan Akman

Re: nor flash verify

jagxin — Tue, 24 Nov 2015 05:41:09 GMT

Source flash poke.tcl file is given for reading from freescale how is this code working ? To read the flash id is there any way to find if the flash is locked or not by reading

Re: nor flash verify

sinanakman — Tue, 24 Nov 2015 06:06:43 GMT

Hi Agxin

Did you try the mem command I mentioned above ?

Regards

Sinan Akman

Re: nor flash verify

jagxin — Tue, 24 Nov 2015 09:36:25 GMT

thank you sir

it is reading now with mem command

How this commands are providing the flash id ?

change p:e8000000 00f0 16bit

change p:e8000aaa 00aa 16bit

change p:e8000554 0055 16bit

change p:e8000aaa 0090 16bit

display p:e8000000..e8000004

display p:e8100000..e8100004

regards

agxin

Re: nor flash verify

lunminliang — Wed, 25 Nov 2015 07:49:11 GMT

Hello agxin j,

You can either use dump of flash programer or ccs command to read back the flash content.

Regards

Lunmin

Re: nor flash verify

jagxin — Wed, 25 Nov 2015 15:56:51 GMT

dear sir

thanks for your reply

i have programmed the flash now and i have reverted hard coded rcw to settings corresponding to boot from nor flash now i have connected my serial console i am getting a 0 on the hyper terminal how to find where it is getting stuck

i have probed the cs of nor flash it is toggling but some soc information that is appearing in evm is not appearing

how to find the boot code is executing

regards

agxin.j

Re: nor flash verify

jagxin — Wed, 25 Nov 2015 17:31:17 GMT

Hello sir

I had dumped the flash from evm to my board but still am getting 0 at the console port how to solve this why am I no getting any u boot comments the serial console ?