From: sudeep.holla@arm.com (Sudeep Holla)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM64: juno: add NOR flash to device tree
Date: Tue, 27 Oct 2015 12:01:29 +0000 [thread overview]
Message-ID: <562F6799.1060301@arm.com> (raw)
In-Reply-To: <CACRpkdZ2Ydyzf9rHOgjZ_KhhxqFi_cK1-Jh47Fh+SP4YGjg_EA@mail.gmail.com>
On 27/10/15 11:55, Linus Walleij wrote:
> On Wed, Oct 21, 2015 at 12:07 PM, Ryan Harkin <ryan.harkin@linaro.org> wrote:
>
>> FYI, in the latest Juno motherboard firmware [1], I have a file called
>> "blank.img" in the NOR flash at address 0x0BFC0000 that represents the UEFI
>> (and now u-boot) config area at the end of the NOR flash.
>>
>> I mostly put this there so that you can "touch blank.img" to erase the
>> config, but also to show that the region is reserved to anyone who might
>> think about putting something there.
>
> Then it is safe to enable NOR flash and AFS in the kernel.
*No*, not on Juno. If we need to enable them for other platforms, then
we should either disable NOR flash in DT(or even remove it completely
whichever is appropriate).
Since idle is enable in defconfig and if DT has idle states, then it
can't boot for the reason I previously mentioned.
--
Regards,
Sudeep
next prev parent reply other threads:[~2015-10-27 12:01 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-15 10:20 [PATCH] ARM64: juno: add NOR flash to device tree Linus Walleij
2015-10-15 11:58 ` Liviu Dudau
2015-10-15 15:20 ` Arnd Bergmann
2015-10-18 9:22 ` Linus Walleij
2015-10-15 15:30 ` Sudeep Holla
2015-10-18 9:25 ` Linus Walleij
2015-10-19 10:17 ` Sudeep Holla
2015-10-19 10:29 ` Mark Rutland
2015-10-19 11:19 ` Linus Walleij
2015-10-19 11:27 ` Leif Lindholm
2015-10-19 21:50 ` Linus Walleij
2015-10-19 11:39 ` Mark Rutland
2015-10-19 14:40 ` Ard Biesheuvel
2015-10-19 21:58 ` Linus Walleij
2015-10-20 14:13 ` Ard Biesheuvel
2015-10-19 21:55 ` Linus Walleij
2015-10-20 11:20 ` Leif Lindholm
[not found] ` <CAD0U-hKZM-A2N_Lpnzwkt0WmAi+kRR=UOEE4Vr2M-iTo9ikkOg@mail.gmail.com>
2015-10-27 11:55 ` Linus Walleij
2015-10-27 12:01 ` Sudeep Holla [this message]
2015-10-27 12:22 ` Linus Walleij
2015-10-27 12:33 ` Sudeep Holla
2015-10-27 21:41 ` Linus Walleij
2015-10-27 12:33 ` Mark Rutland
2015-10-27 12:41 ` Sudeep Holla
2015-10-27 21:43 ` Linus Walleij
2015-10-27 13:20 ` Ryan Harkin
2015-10-19 11:20 ` Leif Lindholm
2015-10-21 11:18 ` Ryan Harkin
2015-10-26 8:41 ` [PATCH] arm64/efi: register UEFI runtime mmio regions as iomem resources Ard Biesheuvel
2015-10-27 12:08 ` Linus Walleij
2015-10-27 12:31 ` Ard Biesheuvel
2015-11-16 12:45 ` Ard Biesheuvel
2015-10-27 11:59 ` [PATCH] ARM64: juno: add NOR flash to device tree Linus Walleij
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