Re: Using firmware interface to write configuration blob to MMR space

From	Murali Karicheri <m-karicheri2@ti.com>
Newsgroups	linux.kernel
Subject	Re: Using firmware interface to write configuration blob to MMR space
Date	2015-08-26 16:40 +0200
Message-ID	<q1K1Q-8vu-35@gated-at.bofh.it> (permalink)
References	<q1sRl-ky-27@gated-at.bofh.it> <q1sRl-ky-25@gated-at.bofh.it> <q1vma-422-7@gated-at.bofh.it>
Organization	Texas Instruments

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On 08/25/2015 06:57 PM, Ben Hutchings wrote:
> On Tue, 2015-08-25 at 16:12 -0400, Murali Karicheri wrote:
>> On 08/25/2015 02:52 PM, Murali Karicheri wrote:
>>> All,
>>>
>>> One of our SoC integrates a hardware block from a hardware vendor. The
>>> vendor has provided a configuration blob that is used to customize the
>>> hardware block for a specific application. This configuration blob is to
>>> be written to the MMR space to customize the hardware. The vendor is not
>>> willing to provide details of the registers. So I am wondering if I
>>> could use the firmware API (request_firmware) to copy the blob to the
>>> kernel space so that driver could write these values to the MMR space.
>>> Is this an acceptable way of using the firmware interface? My research
>>> so far doesn't see the interface used this way and looking for your
>>> expert opinion.
>
> I think this would be an entirely reasonable use of request_firmware().
>
> Ben.
>
Ben,

Thanks for your quick response. Ok, we will use request_firmware() in 
this case.

Thanks
-- 
Murali Karicheri
Linux Kernel, Keystone
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Thread

Re: Using firmware interface to write configuration blob to MMR space Murali Karicheri <m-karicheri2@ti.com> - 2015-08-25 22:20 +0200
  Re: Using firmware interface to write configuration blob to MMR  space Ben Hutchings <ben@decadent.org.uk> - 2015-08-26 01:00 +0200
    Re: Using firmware interface to write configuration blob to MMR space Murali Karicheri <m-karicheri2@ti.com> - 2015-08-26 16:40 +0200

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