From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH V2 4/4] ARM64 LPC: support earlycon for UART connected to LPC
Date: Wed, 07 Sep 2016 16:52:26 +0200 [thread overview]
Message-ID: <4291379.IHAA72aKCk@wuerfel> (raw)
In-Reply-To: <1473255233-154297-5-git-send-email-yuanzhichang@hisilicon.com>
On Wednesday, September 7, 2016 9:33:53 PM CEST Zhichang Yuan wrote:
> From: "zhichang.yuan" <yuanzhichang@hisilicon.com>
>
> This patch support the earlycon for UART connected to LPC on Hip06.
> This patch is depended on the LPC driver.
>
> Signed-off-by: zhichang.yuan <yuanzhichang@hisilicon.com>
>
I'm skeptical about this too. Is this just needed because the 8250
earlycon support comes before the lpc bus initialization?
Could we start the LPC driver earlier to work around that?
Arnd
WARNING: multiple messages have this Message-ID (diff)
From: Arnd Bergmann <arnd@arndb.de>
To: linux-arm-kernel@lists.infradead.org
Cc: Zhichang Yuan <yuanzhichang@hisilicon.com>,
linuxarm@huawei.com, linux-kernel@vger.kernel.org,
lorenzo.pieralisi@arm.com, minyard@acm.org,
benh@kernel.crashing.org, gabriele.paoloni@huawei.com,
john.garry@huawei.com, liviu.dudau@arm.com,
zhichang.yuan02@gmail.com, zourongrong@gmail.com
Subject: Re: [PATCH V2 4/4] ARM64 LPC: support earlycon for UART connected to LPC
Date: Wed, 07 Sep 2016 16:52:26 +0200 [thread overview]
Message-ID: <4291379.IHAA72aKCk@wuerfel> (raw)
In-Reply-To: <1473255233-154297-5-git-send-email-yuanzhichang@hisilicon.com>
On Wednesday, September 7, 2016 9:33:53 PM CEST Zhichang Yuan wrote:
> From: "zhichang.yuan" <yuanzhichang@hisilicon.com>
>
> This patch support the earlycon for UART connected to LPC on Hip06.
> This patch is depended on the LPC driver.
>
> Signed-off-by: zhichang.yuan <yuanzhichang@hisilicon.com>
>
I'm skeptical about this too. Is this just needed because the 8250
earlycon support comes before the lpc bus initialization?
Could we start the LPC driver earlier to work around that?
Arnd
next prev parent reply other threads:[~2016-09-07 14:52 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-07 13:33 [PATCH V2 0/4] ARM64 LPC: legacy ISA I/O support Zhichang Yuan
2016-09-07 13:33 ` Zhichang Yuan
2016-09-07 13:33 ` [PATCH V2 1/4] ARM64 LPC: Indirect ISA port IO introduced Zhichang Yuan
2016-09-07 13:33 ` Zhichang Yuan
2016-09-07 15:06 ` Arnd Bergmann
2016-09-07 15:06 ` Arnd Bergmann
2016-09-08 7:45 ` zhichang.yuan
2016-09-08 7:45 ` zhichang.yuan
2016-09-08 7:45 ` zhichang.yuan
2016-09-08 13:23 ` Arnd Bergmann
2016-09-08 13:23 ` Arnd Bergmann
2016-09-13 6:08 ` zhichang
2016-09-13 6:08 ` zhichang
2016-09-07 15:21 ` kbuild test robot
2016-09-07 15:21 ` kbuild test robot
2016-09-07 13:33 ` [PATCH V2 2/4] ARM64 LPC: LPC driver implementation on Hip06 Zhichang Yuan
2016-09-07 13:33 ` Zhichang Yuan
2016-09-07 15:27 ` Arnd Bergmann
2016-09-07 15:27 ` Arnd Bergmann
2016-09-08 8:06 ` zhichang.yuan
2016-09-08 8:06 ` zhichang.yuan
2016-09-08 10:00 ` Arnd Bergmann
2016-09-08 10:00 ` Arnd Bergmann
2016-09-13 6:31 ` zhichang
2016-09-13 6:31 ` zhichang
2016-09-14 12:34 ` Arnd Bergmann
2016-09-14 12:34 ` Arnd Bergmann
2016-09-07 17:51 ` kbuild test robot
2016-09-07 17:51 ` kbuild test robot
2016-09-07 13:33 ` [PATCH V2 3/4] ARM64 LPC: support serial based on low-pin-count Zhichang Yuan
2016-09-07 13:33 ` Zhichang Yuan
2016-09-07 14:50 ` Arnd Bergmann
2016-09-07 14:50 ` Arnd Bergmann
2016-09-08 9:51 ` zhichang
2016-09-08 9:51 ` zhichang
2016-09-08 9:58 ` Arnd Bergmann
2016-09-08 9:58 ` Arnd Bergmann
2016-09-14 11:48 ` zhichang.yuan
2016-09-14 11:48 ` zhichang.yuan
2016-09-14 12:07 ` Arnd Bergmann
2016-09-14 12:07 ` Arnd Bergmann
2016-09-07 13:33 ` [PATCH V2 4/4] ARM64 LPC: support earlycon for UART connected to LPC Zhichang Yuan
2016-09-07 13:33 ` Zhichang Yuan
2016-09-07 14:52 ` Arnd Bergmann [this message]
2016-09-07 14:52 ` Arnd Bergmann
2016-09-08 10:04 ` zhichang
2016-09-08 10:04 ` zhichang
2016-09-08 11:04 ` Arnd Bergmann
2016-09-08 11:04 ` Arnd Bergmann
2016-09-14 11:26 ` zhichang
2016-09-14 11:26 ` zhichang
2016-09-14 12:36 ` Arnd Bergmann
2016-09-14 12:36 ` Arnd Bergmann
2016-09-08 9:26 ` kbuild test robot
2016-09-08 9:26 ` kbuild test robot
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