linux-kernel - Re: [PATCH 03/31] nds32: Support early

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Date:   Thu, 9 Nov 2017 15:19:57 +0800
From:   Greentime Hu <green.hu@...il.com>
To:     Tobias Klauser <tklauser@...tanz.ch>
Cc:     Greentime <greentime@...estech.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Arnd Bergmann <arnd@...db.de>,
        linux-arch <linux-arch@...r.kernel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <marc.zyngier@....com>,
        Rob Herring <robh+dt@...nel.org>,
        netdev <netdev@...r.kernel.org>, Rick Chen <rick@...estech.com>
Subject: Re: [PATCH 03/31] nds32: Support early_printk

2017-11-08 17:47 GMT+08:00 Tobias Klauser <tklauser@...tanz.ch>:
> On 2017-11-08 at 06:54:51 +0100, Greentime Hu <green.hu@...il.com> wrote:
>> From: Greentime Hu <greentime@...estech.com>
>>
>> Signed-off-by: Rick Chen <rick@...estech.com>
>> Signed-off-by: Greentime Hu <greentime@...estech.com>
>> ---
>>  arch/nds32/kernel/early_printk.c |  124 ++++++++++++++++++++++++++++++++++++++
>>  1 file changed, 124 insertions(+)
>>  create mode 100644 arch/nds32/kernel/early_printk.c
>>
>> diff --git a/arch/nds32/kernel/early_printk.c b/arch/nds32/kernel/early_printk.c
>> new file mode 100644
>> index 0000000..269c3cd
>> --- /dev/null
>> +++ b/arch/nds32/kernel/early_printk.c
>
> Could be implemented using earlycon (the 8250 drivers already supports
> it) instead of duplicating functionality in arch/nds32?  See e.g. the
> nios2 port for how this could be done, specifically commit e118c3fec9c0
> ("nios2: remove custom early console implementation").

Thanks.
I will try to use earlycon in the next version patch.
I will remove this patch if earlycon is able to be used in nds32.