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Altera_Forum's avatar
Altera_Forum
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14 years ago

dm9000 device tree

Hello,

Can someone give me some instructions, howto get dm9000a Ethernet card to work with latest nios2 linux community edition (kernel 3.3.0-rc7) with device tree? My development board is DE2-70

I tried to generate the device tree structure with sopc2dts utility and I got this message "Component DM9000A of class DM9000A_IF is unknown"

so I edited the dm9000 section in dts file to

DM9000A: ethernet@0x940a180 {

compatible = "davicom,dm9000";

reg = < 0x0940A180 0x00000008 >;

interrupt-parent = < &cpu >;

interrupts = < 5 >;

}; //end unknown@0x940a180 (DM9000A)

And added DM9000A support into kernel,

the driver is loaded, but it doesnt recognize the dm9000 card

io scheduler cfq registered (default)

ttyJ0 at MMIO 0x4001020 (irq = 1) is a Altera JTAG UART

console [ttyJ0] enabled, bootconsole disabled

console [ttyJ0] enabled, bootconsole disabled

dm9000 Ethernet Driver, V1.31

mousedev: PS/2 mouse device common for all mice

TCP cubic registered

I tried it before with older version, configured with ptf file and it worked good, but with the newer version I cannot get it up.

Any help would be appreciated

Thank You

1 Reply

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    13 years ago

    What is the version you are developing with?

    See that:

    In the Nios II v9.0 or later, the TCP/IP includes the networking stack of the Nichstack, however, the DE2_NET project was built on the LWIP. The driver for the DM9000A should be different in the Nichstack to the LWIP. Then, if you want to migrate the DE2_Net project to Nios II v11.1, you have to create a new driver for the DM9000A at first.