Hi all,
I am working on bringing up the Ethernet interface for RTEMS 4.12 with libBSD
on a Xilinx zc702
(GigaZee<https://wiki.trenz-electronic.de/display/TE0720/TE0720+User+Manual>)
board. I currently have 6 configurations, Zedboard and GigaZee, each running
U-Boot, Yocto and RTEMS. Only in the GigaZee with RTEMS configuration am I
having the problem that the Ethernet interface can not be found.
I have run the netshell, loopback and DHCPD examples on both devices. Loopback
works on both, but on the GigaZee, I run into the problem that
nexus0: <RTEMS Nexus device>
info: version 6.2.1 starting
err: no valid interfaces found
warning: no interfaces have a carrier
Whereas on the Zedboard the output starts with the following for the DHCP01
example:
nexus0: <RTEMS Nexus device>
cgem0: <Cadence CGEM Gigabit Ethernet Interface> on nexus0
miibus0: <MII bus> on cgem0
e1000phy0: <Marvell 88E1512 Gigabit PHY> PHY 0 on miibus0
e1000phy0: none, 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX,
1000baseT-FDX, 1000bo
cgem0: Ethernet address: 00:0a:35:00:01:04
zy7_slcr0: <Zynq-7000 slcr block> on nexus0
notice: cgem0: link state changed to DOWN
info: version 6.2.1 starting
warning: no interfaces have a carrier
info: cgem0: waiting for carrier
notice: cgem0: link state changed to UP
info: cgem0: carrier acquired
info: DUID 00:01:00:01:e9:6d:a1:82:00:0a:35:00:01:04
info: cgem0: IAID 35:00:01:04
info: cgem0: soliciting an IPv6 router
debug: cgem0: delaying Router Solicitation for LL address
debug: cgem0: using hwaddr 00:0a:35:00:01:04
info: cgem0: soliciting a DHCP lease
debug: cgem0: sending DISCOVER (xid 0x158cc5c9), next in %0.1f seconds
...
I've compared the device tree files for both the Zedboard and the GigaZee and
they differ only slightly:
GigaZee:
ethernet@e000b000 {
compatible = "cdns,gem";
reg = <0xe000b000 0x1000>;
status = "okay";
interrupts = <0x0 0x16 0x4>;
clocks = <0x1 0x1e 0x1 0x1e 0x1 0xd>;
clock-names = "pclk", "hclk", "tx_clk";
#address-cells = <0x1>;
#size-cells = <0x0>;
phy-mode = "rgmii-id";
xlnx,ptp-enet-clock = <0x69f6bcb>;
local-mac-address = [00 0a 35 00 1e 53];
};
ethernet@e000c000 {
compatible = "cdns,gem";
reg = <0xe000c000 0x1000>;
status = "disabled";
interrupts = <0x0 0x2d 0x4>;
clocks = <0x1 0x1f 0x1 0x1f 0x1 0xe>;
clock-names = "pclk", "hclk", "tx_clk";
#address-cells = <0x1>;
#size-cells = <0x0>;
};
ZedBoard:
ethernet@e000b000 {
compatible = "cdns,zynq-gem", "cdns,gem";
reg = <0xe000b000 0x1000>;
status = "okay";
interrupts = <0x0 0x16 0x4>;
clocks = <0x1 0x1e 0x1 0x1e 0x1 0xd>;
clock-names = "pclk", "hclk", "tx_clk";
#address-cells = <0x1>;
#size-cells = <0x0>;
phy-mode = "rgmii-id";
phy-handle = <0x4>;
ethernet-phy@0 {
reg = <0x0>;
linux,phandle = <0x4>;
phandle = <0x4>;
};
};
ethernet@e000c000 {
compatible = "cdns,zynq-gem", "cdns,gem";
reg = <0xe000c000 0x1000>;
status = "disabled";
interrupts = <0x0 0x2d 0x4>;
clocks = <0x1 0x1f 0x1 0x1f 0x1 0xe>;
clock-names = "pclk", "hclk", "tx_clk";
#address-cells = <0x1>;
#size-cells = <0x0>;
};
This is my first mailing list request, so please excuse any inadvertent
missteps.
Best regards,
Moritz
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