[U-Boot] [PATCH v2 1/2] x86: Add SCU IPC driver for Intel MID platforms

Simon Glass sjg at chromium.org
Sat Apr 1 04:24:03 UTC 2017


Hi Andy,

On 26 March 2017 at 06:01, Andy Shevchenko
<andriy.shevchenko at linux.intel.com> wrote:
> On Mon, 2017-03-20 at 15:27 +0200, Andy Shevchenko wrote:
>> On Sun, 2017-03-19 at 20:30 -0600, Simon Glass wrote:
>> > Hi Andy,
>> >
>> > On 15 March 2017 at 12:42, Andy Shevchenko
>> > <andriy.shevchenko at linux.intel.com> wrote:
>> > > From: Felipe Balbi <felipe.balbi at linux.intel.com>
>> > >
>> > > Intel MID platforms have few microcontrollers inside SoC, one of
>> > > them
>> > > is so called System Controller Unit (SCU).
>> > >
>> > > Here is the driver to communicate with microcontroller.
>> > >
>> > > Signed-off-by: Vincent Tinelli <vincent.tinelli at intel.com>
>> > > Signed-off-by: Felipe Balbi <felipe.balbi at linux.intel.com>
>> > > Signed-off-by: Andy Shevchenko <andriy.shevchenko at linux.intel.com>
>> > > ---
>> > >  arch/x86/Kconfig           |   2 +
>> > >  arch/x86/include/asm/cpu.h |   1 +
>> > >  arch/x86/include/asm/scu.h |  28 ++++++++
>> > >  arch/x86/lib/Makefile      |   1 +
>> > >  arch/x86/lib/scu.c         | 168
>> > > +++++++++++++++++++++++++++++++++++++++++++++
>> > >  5 files changed, 200 insertions(+)
>> > >  create mode 100644 arch/x86/include/asm/scu.h
>> > >  create mode 100644 arch/x86/lib/scu.c
>> >
>> > Since this is a v2 patch can you please include a change log?
>>
>> Yes.
>>
>> Common:
>> - convert to use REGMAP instead of constant addressed IO
>> - rewrite as UCLASS_SYSCON modules
>> - move to arch/x86/lib since it's related to x86 only and there are
>> already another UCLASS_SYSCON modules there
>>
>> SCU:
>> - convert function documentation to have header and body and be
>> consistent
>> - shrink header and remove unneeded attributes
>> - drop busy loop counter from 3m to 100k as per driver in Linux kernel
>>
>> PMU:
>> - convert to be more generic and move Tangier related part to its own
>> folder (the latter out of scope of this series)
>
> Should I resend with cover letter and changelog included?

Yes that's a good idea, thanks.

- Simon


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