fpga driver on custom PPC target platform (P4080) ...

[Robert Sciuk]

> -----Original Message-----
> From: Mitch Bradley [mailto:wmb at firmworks.com]
> 
> I would be tempted to add another level of hierarchy as a container for
> the two FPEs on CS2.
> 

Hi, Mitch.

As a long time Forth(er), I'm somewhat honoured to have this exchange with you 8-)


Do you mean something like this????

        localbus at ffe124000 {
                compatible = "fsl,p4080-elbc", "fsl,elbc", "simple-bus";
                reg = <0xf 0xfe124000 0 0x1000>;
                interrupts = <25 2 0 0>;
                interrupt-parent = <&mpic>;
                #address-cells = <2>;
                #size-cells = <1>;

                /* Local bus region mappings */
                ranges = <0 0 0xf 0xe8000000 0x08000000         /* CS0: Boot flash */
                          1 0 0xf 0xd0000000 0x7fff             /* CS1: FPGA0 -  LIM */
                          2 0 0xf 0xd1000000 0x7fff             /* CS2: FPGA1 -  FPE1 */
                          2 1 0xf 0xd2000000 0x7fff >;          /* CS2: FPGA2 -  FPE2 */

                flash at 0,0 {
                        compatible = "cfi-flash";
                        reg = <0 0 0x08000000>;
                        bank-width = <2>;
                        device-width = <2>;
                        #size-cells = <1>;
                        #address-cells = <1>;

                        partition at 0 {
                                label = "rcw";
                                reg = <0x0 0x20000>;
                                read-only;
                        };
                        partition at 40000 {
                                label = "saveenv";
                                reg = <0x40000 0x20000>;
                        };
                        partition at 7000000 {
                                label = "fman-firmware";
                                reg = <0x7000000 0x20000>;
                                read-only;
                        };
                        partition at 7f80000 {
                                label = "u-boot";
                                reg = <0x7f80000 0x80000>;
                                read-only;
                        };
                };

                lim: fpga at 1, {
                }

			nitro: daughtercard at 2 {
                	fpe1: fpga at 2,0 {
                	}

                	fpe2: fpga at 2,1 {
				}
			}
	}