Re: [PATCH u-boot-mvebu v3 07/18] arm: mvebu: turris_omnia: Disable Atmel SHA node if not present

[Stefan Roese <sr@denx.de>]

On 3/27/24 17:23, Marek Behún wrote:
> If the FEAT_CRYPTO feature bit is present in MCU features, the board
> crypto is implemented by MCU and the Atmel SHA chip is not present.
> Disable Atmel SHA device-tree node in that case.
> 
> Signed-off-by: Marek Behún <kabel@kernel.org>

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

Thanks,
Stefan

> ---
>   board/CZ.NIC/turris_omnia/turris_omnia.c | 23 +++++++++++++++++++++++
>   1 file changed, 23 insertions(+)
> 
> diff --git a/board/CZ.NIC/turris_omnia/turris_omnia.c b/board/CZ.NIC/turris_omnia/turris_omnia.c
> index b2f0088e5e..3b7a71bdad 100644
> --- a/board/CZ.NIC/turris_omnia/turris_omnia.c
> +++ b/board/CZ.NIC/turris_omnia/turris_omnia.c
> @@ -1007,6 +1007,25 @@ static int fixup_mcu_gpio_in_eth_wan_node(void *blob)
>   	return 0;
>   }
>   
> +static void fixup_atsha_node(void *blob)
> +{
> +	int node;
> +
> +	if (!omnia_mcu_has_feature(FEAT_CRYPTO))
> +		return;
> +
> +	node = fdt_node_offset_by_compatible(blob, -1, "atmel,atsha204a");
> +	if (node < 0) {
> +		printf("Cannot find ATSHA204A node!\n");
> +		return;
> +	}
> +
> +	if (fdt_status_disabled(blob, node) < 0)
> +		printf("Cannot disable ATSHA204A node!\n");
> +	else
> +		debug("Disabled ATSHA204A node\n");
> +}
> +
>   #endif
>   
>   #if IS_ENABLED(CONFIG_OF_BOARD_FIXUP)
> @@ -1020,6 +1039,8 @@ int board_fix_fdt(void *blob)
>   	fixup_msata_port_nodes(blob);
>   	fixup_wwan_port_nodes(blob);
>   
> +	fixup_atsha_node(blob);
> +
>   	return 0;
>   }
>   #endif
> @@ -1211,6 +1232,8 @@ int ft_board_setup(void *blob, struct bd_info *bd)
>   	fixup_msata_port_nodes(blob);
>   	fixup_wwan_port_nodes(blob);
>   
> +	fixup_atsha_node(blob);
> +
>   	return 0;
>   }
>   #endif

Viele Grüße,
Stefan Roese

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