If aliases are not present in device tree, stmmac_platform.c will
happily assign bus_id of 0 to all the ethernet interfaces, resulting
in hard to debug problems.
At least warn the user about the problem.
Signed-off-by: Pavel Machek <pa...@denx.de>
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index f9b42f1..ee8aa26 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -161,8 +161,10 @@ static int stmmac_probe_config_dt(struct platform_device
*pdev,
plat->max_speed = -1;
plat->bus_id = of_alias_get_id(np, "ethernet");
- if (plat->bus_id < 0)
+ if (plat->bus_id < 0) {
+ dev_warn(&pdev->dev, "no aliases for ethernet; multiple
ethernets will break\n");
plat->bus_id = 0;
+ }
/* Default to phy auto-detection */
plat->phy_addr = -1;
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures)
http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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