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Groups > linux.kernel > #1362432
| From | Neil Armstrong <narmstrong@baylibre.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v2 02/18] dt-bindings: timer: sp804: add timer-width property |
| Date | 2016-03-22 10:30 +0100 |
| Message-ID | <rfqNs-2nj-17@gated-at.bofh.it> (permalink) |
| References | (2 earlier) <raJxo-6vl-31@gated-at.bofh.it> <rdJAS-1Mf-7@gated-at.bofh.it> <rdKwY-2ml-45@gated-at.bofh.it> <rdLt0-2VH-17@gated-at.bofh.it> <rdLMm-32d-3@gated-at.bofh.it> |
| Organization | Baylibre |
On 03/17/2016 08:21 PM, Robin Murphy wrote: > On 17/03/16 19:00, Rob Herring wrote: >> On Thu, Mar 17, 2016 at 1:06 PM, Robin Murphy <robin.murphy@arm.com> wrote: >>> Hi Rob, >>> >>> On 17/03/16 17:09, Rob Herring wrote: >>>> That would not be an SP804 nor would the vendor be ARM in that case. So >>>> add a new compatible string for the vendor that decided to hack up ARM's >>>> IP block. >>> >>> >>> By all accounts this is some ancient reference design[1] which later evolved >>> _into_ the SP804, so that vendor would probably still be ARM ;) >> >> Right. >> >>> A separate compatible string would indeed make more sense, though. Both >>> semantically and in terms of letting the driver account for the differences >>> automatically. >>> >>> Robin. >>> >>> [1]:http://infocenter.arm.com/help/topic/com.arm.doc.ddi0170a/I350250.html >> >> Humm, same as integrator timers perhaps? > > Having had a quick look, what the Integrator/AP manual describes certainly smells like the same basic block as the "AMBA Timer" - 16 bit counters and the same control register layout - albeit in a mutant triple-timer version with a bigger offset between each register set. Integrator/CP, on the other hand, looks much more SP804-like. > > Robin. > Hi, I will switch to oxsemi,ox810se-rps-timer since it need a specific register width that will be handled by the driver. Thanks, Neil
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Re: [PATCH v2 02/18] dt-bindings: timer: sp804: add timer-width property Rob Herring <robh@kernel.org> - 2016-03-17 18:10 +0100
Re: [PATCH v2 02/18] dt-bindings: timer: sp804: add timer-width property Robin Murphy <robin.murphy@arm.com> - 2016-03-17 19:10 +0100
Re: [PATCH v2 02/18] dt-bindings: timer: sp804: add timer-width property Rob Herring <robh@kernel.org> - 2016-03-17 20:10 +0100
Re: [PATCH v2 02/18] dt-bindings: timer: sp804: add timer-width property Robin Murphy <robin.murphy@arm.com> - 2016-03-17 20:30 +0100
Re: [PATCH v2 02/18] dt-bindings: timer: sp804: add timer-width property Neil Armstrong <narmstrong@baylibre.com> - 2016-03-22 10:30 +0100
Re: [PATCH v2 02/18] dt-bindings: timer: sp804: add timer-width property Robin Murphy <robin.murphy@arm.com> - 2016-03-22 13:10 +0100
Re: [PATCH v2 02/18] dt-bindings: timer: sp804: add timer-width property Neil Armstrong <narmstrong@baylibre.com> - 2016-03-22 15:40 +0100
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