[U-Boot] U-Boot: Enhancement request to get flash device specific information

[Simon Glass]

Hi,

On 2 July 2014 10:05, HEERA NAND BHAGTANI <diamond.mbm at gmail.com> wrote:
> Hi U-boot team,
>
> I am looking for u-boot command which can give me flash device specific
> properties. For example, there should be dedicated commands to get the
> flash memory size, sector size, page size etc.
>
> Currently I found there is command "sf probe" for spi flash device which is
> returning device properties into text format as below:
> SF : Detected N25Q128A with page size 256 Bytes, erase size 64 KiB, total
> 16 MiB
>
> Similarly I found there is command "nand info" for nand device which is
> also returning device properties into text format.
>
> These commands ("sf probe" and "nand info") are giving device information
> in form of message. Which does not meet my requirement.
>
> Actually I would like to integrate u-boot with my tool, where tool will run
> u-boot command to get the device information. Based on device information
> tool will react. Here I am looking for some dedicated command which return
> these property separately. It is difficult to parse the message string to
> get individual
>
> Let say we includes following commands:
> "nand info pagesize/sectorsize/size/device"
> "sf info pagesize/sectorsize/size/device"
>
> for example:
> "nand info pagesize" command should return page size ( e.g. *256*)
> "nand info sectorsize" command should return sector size (e.g. *65536*
>  which is 64K)
> "nand info size" command should return the total size (e.g.  *268435456 *which
> is 16 MB)
>
> Could you please consider this enhancement request in u-boot? Please
> comment.

What kind of tool? Is it a U-Boot script? How does it get access to
the output from U-Boot?

You could use a regular expression to extract the information you
need. For the commands you suggest, it might be better to put the
values in an environment variable.

Regards,
Simon