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From: Arnd Bergmann <arnd@arndb.de>
To: Bert Vermeulen <bert@biot.com>
Cc: Marc Zyngier <maz@kernel.org>,
	Linus Walleij <linus.walleij@linaro.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
	<devicetree@vger.kernel.org>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>,
	Arnd Bergmann <arnd@arndb.de>, Olof Johansson <olof@lixom.net>,
	SoC Team <soc@kernel.org>, Rob Herring <robh+dt@kernel.org>,
	John Crispin <john@phrozen.org>, Felix Fietkau <nbd@nbd.name>
Subject: Re: [PATCH 3/5] ARM: dts: Add basic support for EcoNet EN7523
Date: Sun, 1 Aug 2021 11:40:53 +0200	[thread overview]
Message-ID: <CAK8P3a3HrzAYtCnLuThO=9LuwyF8KduNjx-ZrJkXG=Y-i6RNbw@mail.gmail.com> (raw)
Message-ID: <20210801094053.OuaIyRvMkG8jH_V8cIpvNTptCEJeOSn-eVXoC1cqy3o@z> (raw)
In-Reply-To: <0fe113c6-4160-fd3c-488d-53d40b6043ee@biot.com>

On Sun, Aug 1, 2021 at 11:07 AM Bert Vermeulen <bert@biot.com> wrote:
> On 7/30/21 4:53 PM, Marc Zyngier wrote: On Fri, 30 Jul 2021 15:31:36 +0100,
> > Probably because that's not what it actually is. My bet is on A53 with
> > a crippled firmware.
>
> [    0.000000] Booting Linux on physical CPU 0x0
> [    0.000000] Linux version 5.14.0-rc3-00042-g3af70c6f8e95-dirty
> (bert@sumner) (arm-linux-gnueabi-gcc (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0,
> GNU ld (GNU Binutils for Ubuntu) 2.34) #392 SMP Sun Aug 1 10:28:13 CEST 2021
> [    0.000000] CPU: ARMv7 Processor [410fd034] revision 4 (ARMv7), cr=10c5383d
> [    0.000000] CPU: div instructions available: patching division code
> [    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache

Good guess! CPUID 410fd034 is a Cortex-53 (d03) indeed. I wish we
would just print
cleartext names for the CPUs that the kernel already knows about here, I think
the fact that we just print 'ARMv7 processor' (which is wrong) and
spell out the revision
but not implementer/part/variant numbers is rather silly.

Is there a way in the boot loader to boot up a 64-bit kernel?

       Arnd

  parent reply	other threads:[~2021-08-01  9:41 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20210730134552.853350-1-bert@biot.com>
2021-07-30 13:45 ` [PATCH 3/5] ARM: dts: Add basic support for EcoNet EN7523 Bert Vermeulen
2021-07-30 13:45   ` Bert Vermeulen
2021-07-30 14:31   ` Linus Walleij
2021-07-30 14:31     ` Linus Walleij
2021-07-30 14:31     ` Linus Walleij
2021-07-30 14:53     ` Marc Zyngier
2021-07-30 14:53       ` Marc Zyngier
2021-08-01  9:07       ` Bert Vermeulen
2021-08-01  9:07         ` Bert Vermeulen
2021-08-01  9:07         ` Bert Vermeulen
2021-08-01  9:40         ` Arnd Bergmann [this message]
2021-08-01  9:40           ` Arnd Bergmann
2021-08-01  9:40           ` Arnd Bergmann
2021-08-01  9:50         ` Marc Zyngier
2021-08-01  9:50           ` Marc Zyngier
2021-07-30 14:45   ` Daniel Palmer
2021-07-30 14:45     ` Daniel Palmer
2021-07-30 14:45     ` Daniel Palmer
2021-07-30 14:46   ` Mark Rutland
2021-07-30 14:46     ` Mark Rutland
2021-08-04 16:41     ` Bert Vermeulen
2021-08-04 16:41       ` Bert Vermeulen
2021-08-06 20:59       ` Rob Herring
2021-08-06 20:59         ` Rob Herring
2021-07-30 14:59   ` Mark Rutland
2021-07-30 14:59     ` Mark Rutland
2021-08-06 20:52     ` Rob Herring
2021-08-06 20:52       ` Rob Herring
2021-07-30 16:47   ` Andre Przywara
2021-07-30 16:47     ` Andre Przywara
2021-07-30 17:23     ` Marc Zyngier
2021-07-30 17:23       ` Marc Zyngier

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