On Wed, Nov 02, 2022 at 11:07:43AM +0100, Oleksij Rempel wrote:
> We have two external ports and different MAC addresses on each port. So,
> assign different MAC to the LAN2. The address on LAN1 is the
> system default address.
>
> Signed-off-by: Oleksij Rempel <o.rem...@pengutronix.de>
> ---
> arch/arm/boards/skov-imx6/board.c | 47 ++++++++++++++++++++++++++++++-
> 1 file changed, 46 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/boards/skov-imx6/board.c
> b/arch/arm/boards/skov-imx6/board.c
> index 3c51b76735..ab8b229a69 100644
> --- a/arch/arm/boards/skov-imx6/board.c
> +++ b/arch/arm/boards/skov-imx6/board.c
> @@ -17,6 +17,12 @@
>
> #include "version.h"
>
> +struct skov_imx6_priv {
> + struct device_d *dev;
> +};
> +
> +static struct skov_imx6_priv *skov_priv;
> +
> static int eth_of_fixup_node(struct device_node *root, const char *node_path,
> const u8 *ethaddr)
> {
> @@ -542,6 +548,34 @@ static void skov_init_board(const struct
> board_description *variant)
> }
> }
>
> +/* */
Did you want to write a comment here?
> +static int skov_set_switch_lan2_mac(struct skov_imx6_priv *priv)
> +{
> + const char *state = "/state/ethaddr/eth2";
> + struct device_node *lan2_np;
> + u8 ethaddr[ETH_ALEN];
> + int ret;
> +
> + ret = get_mac_address_from_env_variable("state.ethaddr.eth2", ethaddr);
> + if (ret || !is_valid_ether_addr(ethaddr)) {
> + ret = get_default_mac_address_from_state_node(state, ethaddr);
> + if (ret || !is_valid_ether_addr(ethaddr)) {
> + dev_err(priv->dev, "can't get MAC for LAN2\n");
> + return -ENODEV;
> + }
> + }
> +
> + lan2_np = of_find_node_by_path("/mdio/switch@0/ports/ports@1");
> + if (!lan2_np) {
> + dev_err(priv->dev, "LAN2 node not found\n");
> + return -ENODEV;
> + }
> +
> + of_eth_register_ethaddr(lan2_np, ethaddr);
> +
> + return 0;
> +}
> +
> static int skov_switch_test(void)
> {
> struct device_d *sw_dev;
> @@ -561,8 +595,11 @@ static int skov_switch_test(void)
> goto no_switch;
> }
>
> - if (dev_is_probed(sw_dev))
> + if (dev_is_probed(sw_dev)) {
> + skov_set_switch_lan2_mac(skov_priv);
> + /* even if we fail, continue to boot as good as possible */
> return 0;
> + }
This introduction of skov_priv to have a struct device_d * around for
dev_err is good, but is not subject to this patch. Please either make an
extra patch from it and use dev_err consistently or just stick to the
currently used pr_err.
>
> no_switch:
> skov_have_switch = false;
> @@ -584,6 +621,7 @@ late_initcall(skov_switch_test);
>
> static int skov_imx6_probe(struct device_d *dev)
> {
> + struct skov_imx6_priv *priv;
> unsigned v = 0;
> const struct board_description *variant;
>
> @@ -603,6 +641,13 @@ static int skov_imx6_probe(struct device_d *dev)
>
> skov_board_no = v;
>
> + priv = xzalloc(sizeof(*priv));
> + if (!priv)
> + return -ENOMEM;
xzalloc does not return with an error.
Sascha
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