[PATCH] configs: am62x_evm_*: Set DFU buffer size to 256k

[Roger Quadros]

On 20/12/2024 23:53, Jonathan Humphreys wrote:
> OSPI flash writing was broken on am62x SKs as the OSPI flash device has a
> 256k sector size but was set to 20k. This breaks OSPI flash writes because
> the current implementation of the SF DFU backend requires that the DFU data
> buffer size be the same as the sector erase size, and the USB DFU config
> fragment (for both A53 and R5) reduced the size of the DFU data buffer,
> presumably so that it can fit into SPL's much smaller heap.
> 
> Change the SYS_DFU_DATA_BUF_SIZE to the erase sector size, which still fits
> within the post-relocation heap size in SPL.
> 
> Fixes: dfc2dff5a844 ("configs: am62x_evm_*: Enable USB and DFU support")
> 
> Signed-off-by: Jonathan Humphreys <j-humphreys at ti.com>

Reviewed-by: Roger Quadros <rogerq at kernel.org>