From: Jon Hunter <jon-hunter@ti.com>
To: Kevin Hilman <khilman@ti.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>,
tony@atomide.com, R Sricharan <r.sricharan@ti.com>,
linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 02/14] ARM: OMAP: counter-32k: Select the CR register offset using the IP scheme.
Date: Mon, 9 Jul 2012 18:52:21 -0500 [thread overview]
Message-ID: <4FFB6EB5.8020306@ti.com> (raw)
In-Reply-To: <873950x4ng.fsf@ti.com>
On 07/09/2012 11:47 AM, Kevin Hilman wrote:
> Santosh Shilimkar <santosh.shilimkar@ti.com> writes:
>
>> From: R Sricharan <r.sricharan@ti.com>
>>
>> OMAP socs has a legacy and a highlander version of the
>> 32k sync counter IP. The register offsets vary between the
>> highlander and the legacy scheme. So use the 'SCHEME'
>> bits(30-31) of the revision register to distinguish between
>> the two versions and choose the CR register offset accordingly.
>
> Do these scheme bits exist on *all* OMAPs? including OMAP1?
By the way, I believe that for early devices only the lower 8-bits were
used and the upper bits return 0. For OMAP5912 I read 0x00000010 from
the REV register and so this change should be safe for OMAP1 devices.
Cheers
Jon
WARNING: multiple messages have this Message-ID (diff)
From: jon-hunter@ti.com (Jon Hunter)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 02/14] ARM: OMAP: counter-32k: Select the CR register offset using the IP scheme.
Date: Mon, 9 Jul 2012 18:52:21 -0500 [thread overview]
Message-ID: <4FFB6EB5.8020306@ti.com> (raw)
In-Reply-To: <873950x4ng.fsf@ti.com>
On 07/09/2012 11:47 AM, Kevin Hilman wrote:
> Santosh Shilimkar <santosh.shilimkar@ti.com> writes:
>
>> From: R Sricharan <r.sricharan@ti.com>
>>
>> OMAP socs has a legacy and a highlander version of the
>> 32k sync counter IP. The register offsets vary between the
>> highlander and the legacy scheme. So use the 'SCHEME'
>> bits(30-31) of the revision register to distinguish between
>> the two versions and choose the CR register offset accordingly.
>
> Do these scheme bits exist on *all* OMAPs? including OMAP1?
By the way, I believe that for early devices only the lower 8-bits were
used and the upper bits return 0. For OMAP5912 I read 0x00000010 from
the REV register and so this change should be safe for OMAP1 devices.
Cheers
Jon
next prev parent reply other threads:[~2012-07-09 23:52 UTC|newest]
Thread overview: 88+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-06 9:21 [PATCH v2 00/14] ARM: OMAP5: Add minimal OMAP5 SOC support Santosh Shilimkar
2012-07-06 9:21 ` Santosh Shilimkar
2012-07-06 9:21 ` [PATCH v2 01/14] ARM: OMAP2+: Move stubbed secure_sram_reserve function to a common.c and call it __weak Santosh Shilimkar
2012-07-06 9:21 ` Santosh Shilimkar
2012-07-06 9:21 ` [PATCH v2 02/14] ARM: OMAP: counter-32k: Select the CR register offset using the IP scheme Santosh Shilimkar
2012-07-06 9:21 ` Santosh Shilimkar
2012-07-09 8:50 ` Vaibhav Hiremath
2012-07-09 8:50 ` Vaibhav Hiremath
2012-07-09 10:42 ` Shilimkar, Santosh
2012-07-09 10:42 ` Shilimkar, Santosh
2012-07-10 6:41 ` Hiremath, Vaibhav
2012-07-10 6:41 ` Hiremath, Vaibhav
2012-07-10 7:12 ` Shilimkar, Santosh
2012-07-10 7:12 ` Shilimkar, Santosh
2012-07-10 7:25 ` Hiremath, Vaibhav
2012-07-10 7:25 ` Hiremath, Vaibhav
2012-07-09 16:47 ` Kevin Hilman
2012-07-09 16:47 ` Kevin Hilman
2012-07-09 23:21 ` Jon Hunter
2012-07-09 23:21 ` Jon Hunter
2012-07-10 5:50 ` Shilimkar, Santosh
2012-07-10 5:50 ` Shilimkar, Santosh
2012-07-09 23:52 ` Jon Hunter [this message]
2012-07-09 23:52 ` Jon Hunter
2012-07-06 9:21 ` [PATCH v2 03/14] ARM: OMAP5: id: Add cpu id for ES versions Santosh Shilimkar
2012-07-06 9:21 ` Santosh Shilimkar
2012-11-02 10:03 ` Roger Quadros
2012-11-02 10:03 ` Roger Quadros
2012-11-06 18:18 ` Tony Lindgren
2012-11-06 18:18 ` Tony Lindgren
2012-07-06 9:21 ` [PATCH v2 04/14] ARM: OMAP5: Add minimal support for OMAP5430 SOC Santosh Shilimkar
2012-07-06 9:21 ` Santosh Shilimkar
2012-07-09 8:50 ` Vaibhav Hiremath
2012-07-09 8:50 ` Vaibhav Hiremath
2012-07-09 10:39 ` Shilimkar, Santosh
2012-07-09 10:39 ` Shilimkar, Santosh
2012-07-10 5:57 ` Hiremath, Vaibhav
2012-07-10 5:57 ` Hiremath, Vaibhav
2012-07-10 6:06 ` Shilimkar, Santosh
2012-07-10 6:06 ` Shilimkar, Santosh
2012-07-10 6:11 ` Hiremath, Vaibhav
2012-07-10 6:11 ` Hiremath, Vaibhav
2012-07-09 13:11 ` Tony Lindgren
2012-07-09 13:11 ` Tony Lindgren
2012-07-09 13:25 ` Tony Lindgren
2012-07-09 13:25 ` Tony Lindgren
2012-07-09 13:26 ` Shilimkar, Santosh
2012-07-09 13:26 ` Shilimkar, Santosh
2012-07-09 14:26 ` Shilimkar, Santosh
2012-07-09 14:26 ` Shilimkar, Santosh
2012-07-10 6:25 ` Hiremath, Vaibhav
2012-07-10 6:25 ` Hiremath, Vaibhav
2012-07-10 8:18 ` Tony Lindgren
2012-07-10 8:18 ` Tony Lindgren
2012-07-10 8:30 ` Hiremath, Vaibhav
2012-07-10 8:30 ` Hiremath, Vaibhav
2012-07-10 8:37 ` Tony Lindgren
2012-07-10 8:37 ` Tony Lindgren
2012-08-15 22:26 ` Paul Walmsley
2012-08-15 22:26 ` Paul Walmsley
2012-08-16 8:39 ` Tony Lindgren
2012-08-16 8:39 ` Tony Lindgren
2012-08-16 9:36 ` Hiremath, Vaibhav
2012-08-16 9:36 ` Hiremath, Vaibhav
2012-07-06 9:21 ` [PATCH v2 05/14] ARM: OMAP5: timer: Add clocksource, clockevent support Santosh Shilimkar
2012-07-06 9:21 ` Santosh Shilimkar
2012-07-06 9:21 ` [PATCH v2 06/14] ARM: OMAP5: gpmc: Update gpmc_init() Santosh Shilimkar
2012-07-06 9:21 ` Santosh Shilimkar
2012-07-06 9:21 ` [PATCH v2 07/14] ARM: OMAP5: l3: Add l3 error handler support for omap5 Santosh Shilimkar
2012-07-06 9:21 ` Santosh Shilimkar
2012-07-06 9:21 ` [PATCH v2 08/14] ARM: OMAP5: Add the WakeupGen IP updates Santosh Shilimkar
2012-07-06 9:21 ` Santosh Shilimkar
2012-07-06 9:21 ` [PATCH v2 09/14] ARM: OMAP5: Add SMP support Santosh Shilimkar
2012-07-06 9:21 ` Santosh Shilimkar
2012-07-06 9:21 ` [PATCH v2 10/14] ARM: omap2+: board-generic: clean up the irq data from board file Santosh Shilimkar
2012-07-06 9:21 ` Santosh Shilimkar
2012-07-06 9:21 ` [PATCH v2 11/14] ARM: OMAP5: board-generic: Add device tree support Santosh Shilimkar
2012-07-06 9:21 ` Santosh Shilimkar
2012-07-06 9:21 ` [PATCH v2 12/14] arm/dts: OMAP5: Add omap5 dts files Santosh Shilimkar
2012-07-06 9:21 ` Santosh Shilimkar
2012-07-06 9:21 ` [PATCH v2 13/14] ARM: OMAP5: Add the build support Santosh Shilimkar
2012-07-06 9:21 ` Santosh Shilimkar
2012-07-06 9:21 ` [PATCH v2 14/14] ARM: Kconfig update to support additional GPIOs in OMAP5 Santosh Shilimkar
2012-07-06 9:21 ` Santosh Shilimkar
2012-07-06 12:36 ` [PATCH v2 00/14] ARM: OMAP5: Add minimal OMAP5 SOC support Tony Lindgren
2012-07-06 12:36 ` Tony Lindgren
2012-07-06 12:47 ` Shilimkar, Santosh
2012-07-06 12:47 ` Shilimkar, Santosh
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