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Date:   Wed, 6 May 2020 21:16:24 +0300
From:   Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:     Sergey.Semin@...kalelectronics.ru,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc:     Serge Semin <fancer.lancer@...il.com>,
        Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
        Paul Burton <paulburton@...nel.org>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Arnd Bergmann <arnd@...db.de>,
        Rob Herring <robh+dt@...nel.org>, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, Allison Randal <allison@...utok.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 14/20] mips: Use offset-sized IO-mem accessors in CPS
 debug printout

Hello!

On 05/06/2020 08:42 PM, Sergey.Semin@...kalelectronics.ru wrote:

> From: Serge Semin <Sergey.Semin@...kalelectronics.ru>
> 
> Similar to commit 8e5c62e38a88 ("mips: early_printk_8250: Use offset-sized
> IO-mem accessors") the IO-memory might require to use a proper load/store
> instructions (like Bailal-T1 IO-memory). To fix the cps-vec UART debug

   Baikal? :-)

> printout lets use the memory access instructions in accordance with the
> UART registers offset config specified at boot time.
> 
> Signed-off-by: Serge Semin <Sergey.Semin@...kalelectronics.ru>
> Cc: Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>
> Cc: Thomas Bogendoerfer <tsbogend@...ha.franken.de>
> Cc: Paul Burton <paulburton@...nel.org>
> Cc: Ralf Baechle <ralf@...ux-mips.org>
> Cc: Arnd Bergmann <arnd@...db.de>
> Cc: Rob Herring <robh+dt@...nel.org>
> Cc: linux-pm@...r.kernel.org
> Cc: devicetree@...r.kernel.org
> 
> ---
> There might be another problem in cps-vec-ns16550.S connected with the
> difference in CPU/devices endinanness on some platforms. But there is

   Endianness.

> no such for Baikal-T1 SoC.
[...]

MBR, Sergei

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