From: sudeep.holla@arm•com (Sudeep Holla)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH] ARM64: juno: disable NOR flash node by default
Date: Wed, 28 Oct 2015 10:54:58 +0000 [thread overview]
Message-ID: <5630A982.5080505@arm.com> (raw)
In-Reply-To: <1446025195-9264-1-git-send-email-linus.walleij@linaro.org>
On 28/10/15 09:39, Linus Walleij wrote:
> After discussing on the mailing list it turns out that
> accessing the flash memory from the kernel can disrupt CPU
> sleep states and CPU hotplugging, so let's disable this
> DT node by default. Setups that want to access the flash
> can modify this entry to enable the flash again.
>
> Quoting Sudeep Holla: "the firmware assumes the flash is
> always in read mode while Linux leaves NOR flash in
> "read id" mode after initialization."
>
> Reported-by: Sudeep Holla <sudeep.holla@arm•com>
> Cc: Mark Rutland <mark.rutland@arm•com>
> Cc: Sudeep Holla <sudeep.holla@arm•com>
Thanks for the patch. I too wrote one last night after I found
NOR flash was added in arm-soc -next.
Acked-by: Sudeep Holla <sudeep.holla@arm•com>
--
Regards,
Sudeep
next prev parent reply other threads:[~2015-10-28 10:54 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-28 9:39 [PATCH] ARM64: juno: disable NOR flash node by default Linus Walleij
2015-10-28 10:54 ` Sudeep Holla [this message]
2015-10-28 11:29 ` Mark Rutland
2015-10-31 1:31 ` Olof Johansson
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