> MDIO bus. Followed example in
> Documentation/devicetree/bindings/dsa/marvell.txt */
> compatible = "marvell,mv88e6xxx-mdio-external";
6176 does not have an external MDIO bus. Only the 6390 family
does. The 6176 has just one bus, which is both internal and external.
> #address-cells = <1>;
> #size-cells = <0>;
> };
> };
> Here is log of the 5.4.36 kernel crash. Can someone point to what
> could be going on here?
>
> 63] mdio_bus !soc!pcie@1ffc000!pcie@2,1!pcie@3,0!igb0!mdio@0!switch0@0!md:
> ports has invalid PHY address
"ports has invalid PHY address" does not exist in 5.4.36.
> [ 2.239378] mdio_bus
> !soc!pcie@1ffc000!pcie@2,1!pcie@3,0!igb0!mdio@0!switch0@0!md: scan phy
> ports at address 0
> [ 2.240858] mmcblk1: mmc1:0007 SDCIT 29.2 GiB
> [ 2.244341] ------------[ cut here ]------------
> [ 2.244355] WARNING: CPU: 2 PID: 44 at kernel/kmod.c:137 0x800433d0
> [ 2.244359] Modules linked in:
> [ 2.244372] CPU: 2 PID: 44 Comm: kworker/u8:3 Not tainted 5.4.36 #0
> [ 2.244377] Hardware name: Freescale i.MX6 Quad/DualLite (Device
> Tree)
> [ 2.244386] Workqueue: events_unbound 0x80041cbc
> [ 2.244402] Function entered at [<80016344>] from [<8001299c>]
> [ 2.244408] Function entered at [<8001299c>] from [<8053a850>]
> [ 2.244413] Function entered at [<8053a850>] from [<80024108>]
> [ 2.244418] Function entered at [<80024108>] from [<80024174>]
> [ 2.244423] Function entered at [<80024174>] from [<800433d0>]
> [ 2.244429] Function entered at [<800433d0>] from [<802e8ec0>]
> [ 2.244435] Function entered at [<802e8ec0>] from [<802ea4c0>]
> [ 2.244440] Function entered at [<802ea4c0>] from [<802ea63c>]
> [ 2.244444] Function entered at [<802ea63c>] from [<803d5a40>]
> [ 2.244449] Function entered at [<803d5a40>] from [<803d617c>]
> [ 2.244456] Function entered at [<803d617c>] from [<802ed25c>]
> [ 2.244461] Function entered at [<802ed25c>] from [<802ef0c0>]
> [ 2.244466] Function entered at [<802ef0c0>] from [<802ebb0c>]
> [ 2.244470] Function entered at [<802ebb0c>] from [<8027804c>]
This is useless to us. You need to enable symbols in the image. I
think that is CONFIG_DEBUG_INFO.
> [ 2.245041] mv88e6085 0000:03:00.0-1538:00: no ports child node found
static int dsa_switch_parse_ports_of(struct dsa_switch *ds,
struct device_node *dn)
{
struct device_node *ports, *port;
struct dsa_port *dp;
int err = 0;
u32 reg;
ports = of_get_child_by_name(dn, "ports");
if (!ports) {
dev_err(ds->dev, "no ports child node found\n");
return -EINVAL;
}
This would indicate your 'port' node is misplaced somehow.
Andrew
