Compact Flash on latest unstable-nios2mmu - does not work.

Thanks for the reply.

The wiki suggests "Generic platform device PATA support", however it appears you modified the pata_altera_cf.c file, so I unchecked Generic and checked the Altera CF driver in the config.

It probes now, but I get error:

pata_altera_cf 1000000.ata: IDE region too small

Finding this in the pata_altera_cf.c file, I added some printk statements:

    printk("resource_type(ide_mem_res) = 0x%X ?= 0x%X\n", resource_type(ide_mem_res), IORESOURCE_MEM);
    printk("resource_size(ide_mem_res) = 0x%X ?= 0x%X\n", resource_size(ide_mem_res), ALTCF_IDE_LEN);
    printk("resource_type(ide_irq_res) = 0x%X ?= 0x%X\n", resource_type(ide_irq_res), IORESOURCE_IRQ);
    printk("resource_type(cfc_mem_res) = 0x%X ?= 0x%X\n", resource_type(cfc_mem_res), IORESOURCE_MEM);
    printk("resource_size(cfc_mem_res) = 0x%X ?= 0x%X\n", resource_size(cfc_mem_res), ALTCF_CFC_LEN);

I got the following at boot:

resource_type(ide_mem_res) = 0x200 ?= 0x200
resource_size(ide_mem_res) = 0x10 ?= 0x40
resource_type(ide_irq_res) = 0x400 ?= 0x400
resource_type(cfc_mem_res) = 0x200 ?= 0x200
resource_size(cfc_mem_res) = 0x40 ?= 0x10

The second line is the problem, as code reads:

    if (resource_size(ide_mem_res) < ALTCF_IDE_LEN) {
        dev_err(dev, "IDE region too small\n");
        return rc;
    }

...which is all I had time for today.

Is the .dts compiler correct?

Recall my .dts file for the CF:

       cf: ata@0x1000080 {
            compatible = "ALTR,cf-10.1","ALTR,cf-1.0";
            reg = < 0x1000000 0x10 0x1000080 0x40>;
            interrupt-parent = < &cpu >;
            interrupts = < 14 15 >;
        }; //end ata (cf)

I am using pipeline bridges, so addressing is not absolute..?

Thanks,