On Tue, 14 Sep 2021 05:26:51 +0200 Marek Vasut <ma...@denx.de> wrote:
> Not all SPI flashes and controllers can do continuous transfer longer
> than 16 MiB, so perform the DFU read in 16 MiB chunks.
>
> Signed-off-by: Marek Vasut <ma...@denx.de>
> Cc: Lukasz Majewski <lu...@denx.de>
> ---
> drivers/dfu/dfu_sf.c | 14 ++++++++++++--
> 1 file changed, 12 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/dfu/dfu_sf.c b/drivers/dfu/dfu_sf.c
> index 7e64ab772f0..b72493ced86 100644
> --- a/drivers/dfu/dfu_sf.c
> +++ b/drivers/dfu/dfu_sf.c
> @@ -24,8 +24,18 @@ static int dfu_get_medium_size_sf(struct
> dfu_entity *dfu, u64 *size) static int dfu_read_medium_sf(struct
> dfu_entity *dfu, u64 offset, void *buf, long *len)
> {
> - return spi_flash_read(dfu->data.sf.dev, dfu->data.sf.start +
> offset,
> - *len, buf);
> + long seglen = *len;
> + int ret;
> +
> + if (seglen > (16 << 20))
> + seglen = (16 << 20);
> +
> + ret = spi_flash_read(dfu->data.sf.dev, dfu->data.sf.start +
> offset,
> + seglen, buf);
> + if (!ret)
> + *len = seglen;
> +
> + return ret;
> }
>
> static u64 find_sector(struct dfu_entity *dfu, u64 start, u64 offset)
Reviewed-by: Lukasz Majewski <lu...@denx.de>
Best regards,
Lukasz Majewski
--
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Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: lu...@denx.de
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