Re: [PATCH 1/3] net: ocelot: add support to get mac from device-tree

Le Thu, 28 Oct 2021 14:06:12 +0000,
Vladimir Oltean [off-list ref] a écrit :

On Thu, Oct 28, 2021 at 03:49:30PM +0200, Clément Léger wrote:

quoted

Add support to get mac from device-tree using of_get_mac_address.

Signed-off-by: Clément Léger <clement.leger@bootlin.com>
---
 drivers/net/ethernet/mscc/ocelot_vsc7514.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mscc/ocelot_vsc7514.c

b/drivers/net/ethernet/mscc/ocelot_vsc7514.c index
d51f799e4e86..c39118e5b3ee 100644 ---
a/drivers/net/ethernet/mscc/ocelot_vsc7514.c +++
b/drivers/net/ethernet/mscc/ocelot_vsc7514.c @@ -526,7 +526,10 @@
static int ocelot_chip_init(struct ocelot *ocelot, const struct
ocelot_ops *ops) ocelot_pll5_init(ocelot);
 
-	eth_random_addr(ocelot->base_mac);
+	ret = of_get_mac_address(ocelot->dev->of_node,
ocelot->base_mac);  

Why not per port? This is pretty strange, I think.

Hi Vladimir,

Currently, all ports share the same base mac address (5 first
bytes). The final mac address per port is computed in ocelot_probe_port
by adding the port number as the last byte of the mac_address provided.

Clément

quoted

+	if (ret)
+		eth_random_addr(ocelot->base_mac);
+
 	ocelot->base_mac[5] &= 0xf0;
 
 	return 0;
-- 
2.33.0