On 21/09/2020 18:03, Mark Cave-Ayland wrote: > The lance and esp devices are embedded within ledma and espdma devices > respectively, > but are actually sysbus devices because they can be used by other machines. > I'm not > sure if lance is used anywhere else, but esp certainly is. Hence they are > mapped > after the dma device is realised as it feels odd to attach devices to sysbus > outside > of a machine init function.
Actually I have a better idea for this: use sysbus_mmio_get_region() within the sparc32-dma device to attach the lance and esp memory regions to its own container memory region: then the single sysbus_mmio_map() for the sparc32-dma device will just work on its own. ATB, Mark.
