On 09/26/2012 11:38 AM, Marc Kleine-Budde wrote:

On 09/25/2012 07:52 AM, Andreas Larsson wrote:

quoted

This driver is for the sja1000 compatible CAN_OC cores from Aeroflex
Gaisler available in the GRLIB VHDL IP core library.

Why don't you describe a single sja1000 compatible core with an OF
device? The devices have indipendent address spaces and IRQs. With a
proper abstraction/desciption you would not need this driver.

Right, at least I do not see anything special. The following DTS entry
should do the jobs:


  /* First CAN device */
  can@3,100 {
        compatible = "nxp,sja1000";
        reg = <3 0x100 0x80>;
        interrupts = <2 0>;
        interrupt-parent = <&mpic>;
        nxp,external-clock-frequency = <16000000>;
  };

  /* Second CAN device */
  can@3,200 {
        compatible = "nxp,sja1000";
        reg = <3 0x200 0x80>;
        interrupts = <2 0>;
        interrupt-parent = <&mpic>;
        nxp,external-clock-frequency = <16000000>;
  };

Addresses and IRQs might be different, of course.

See also;


http://lxr.linux.no/#linux+v3.5.4/Documentation/devicetree/bindings/net/can/sja1000.txt

Wolfgang.