[U-Boot] [PATCH 1/2] net: mvneta: dcache flush TX descriptors at init

[Stefan Roese]

On 17.06.2018 13:55, Baruch Siach wrote:
> From: Rabeeh Khoury <rabeeh at solid-run.com>
> 
> This fixes sporadic timeout on initial packet Tx (usually ARP), with an
> error message like:
> 
>    timeout: packet not sent
> 
> Signed-off-by: Rabeeh Khoury <rabeeh at solid-run.com>
> Signed-off-by: Baruch Siach <baruch at tkos.co.il>
> ---
>   drivers/net/mvneta.c | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/net/mvneta.c b/drivers/net/mvneta.c
> index 45e5eda95522..316a72b16517 100644
> --- a/drivers/net/mvneta.c
> +++ b/drivers/net/mvneta.c
> @@ -1702,6 +1702,7 @@ static int mvneta_probe(struct udevice *dev)
>   
>   		/* Align buffer area for descs and rx_buffers to 1MiB */
>   		bd_space = memalign(1 << MMU_SECTION_SHIFT, BD_SPACE);
> +		flush_dcache_range((ulong)bd_space, (ulong)bd_space+BD_SPACE);
>   		mmu_set_region_dcache_behaviour((phys_addr_t)bd_space, BD_SPACE,
>   						DCACHE_OFF);
>   		buffer_loc.tx_descs = (struct mvneta_tx_desc *)bd_space;
> 

Nitpicking comment: Checkpatch will most likely complain about missing
spaces around '+'. Other than this:

Reviewed-by: Stefan Roese <sr at denx.de>

Thanks,
Stefan