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From: | Mark Cave-Ayland |
Subject: | Re: [PATCH 4/6] sparc32-ledma: don't reference nd_table directly within the device |
Date: | Mon, 21 Sep 2020 18:14:43 +0100 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 |
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.
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