Re: [PATCH]: cmd: part: add part block command

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setexpr can compute the divide/multiply part, but we still need to get the partition block size somehow.

I know that this is 0x200 by default, but we can not hardcode that in the scripts. we should read that from the partition info.

On 2020-06-02 at 17:55, trini@konsulko.com wrote:

On Mon, Jun 01, 2020 at 01:20:25PM +0300, razvan.becheriu@gmail.com

wrote:

...

The Intel Edison OTA process requires a conversion of data size
from bytes to number of blocks. The following functions are used:

# function ota_conv_sizes
# Convert a bytes size to a block size
# input  bytesize : size in bytes to convert
# input  blksize  : size of a block in bytes
# output num_blk  : converted size in blocks

# function ota_mmc_write
# Write a memory buffer to mmc drive
# input floadaddr    : address of buffer to write
# input u_part_start : block start in mmc
# input num_blk      : number of block to write

This patch adds the cmd part sub-command 'block' which returns
the partition block size in bytes.

This is usually done with the setexpr command today, thanks!

-- Tom