[PATCH] net: ti: am65-cpsw: Cleanup resources before jump to kernel

[Ramon Fried]

On Fri, Jan 28, 2022 at 7:51 AM Vignesh Raghavendra <vigneshr at ti.com> wrote:
>
> In case fastboot over Ethernet, am65_cpsw_stop() is not called unless
> DM_FLAG_OS_PREPARE is set. Without call to am65_cpsw_stop(), DMA
> resources are not released thus leading to failures in kernel.
> Fix this by adding DM_FLAG_OS_PREPARE flag to am65_cpsw_nuss_port
> driver.
>
> Reported-by: Christian Gmeiner <christian.gmeiner at gmail.com>
> Signed-off-by: Vignesh Raghavendra <vigneshr at ti.com>
> ---
>  drivers/net/ti/am65-cpsw-nuss.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/ti/am65-cpsw-nuss.c b/drivers/net/ti/am65-cpsw-nuss.c
> index 454986ff15..87f51b3b99 100644
> --- a/drivers/net/ti/am65-cpsw-nuss.c
> +++ b/drivers/net/ti/am65-cpsw-nuss.c
> @@ -817,5 +817,5 @@ U_BOOT_DRIVER(am65_cpsw_nuss_port) = {
>         .ops    = &am65_cpsw_ops,
>         .priv_auto      = sizeof(struct am65_cpsw_priv),
>         .plat_auto      = sizeof(struct eth_pdata),
> -       .flags = DM_FLAG_ALLOC_PRIV_DMA,
> +       .flags = DM_FLAG_ALLOC_PRIV_DMA | DM_FLAG_OS_PREPARE,
>  };
> --
> 2.35.0
>
Reviewed-by: Ramon Fried <rfried.dev at gmail.com>