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)
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
WARNING: multiple messages have this Message-ID (diff)
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.MM13x6VG-X92QreDpMI1wqTS71O8INqH0WOB5VOwv4g@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
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next prev parent reply other threads:[~2021-08-01 9:41 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-30 13:45 [PATCH 0/4] Add support for EcoNet EN7523 SoC Bert Vermeulen
2021-07-30 13:45 ` Bert Vermeulen
2021-07-30 13:45 ` [PATCH 1/5] dt-bindings: Add vendor prefix for EcoNet Bert Vermeulen
2021-07-30 13:45 ` Bert Vermeulen
2021-08-06 21:02 ` Rob Herring
2021-08-06 21:02 ` Rob Herring
2021-07-30 13:45 ` [PATCH 2/5] dt-bindings: arm: econet: Add binding for EN7523 SoC and EVB Bert Vermeulen
2021-07-30 13:45 ` Bert Vermeulen
2021-08-06 21:04 ` Rob Herring
2021-08-06 21:04 ` Rob Herring
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
2021-07-30 13:45 ` [PATCH 4/5] ARM: Add basic support for EcoNet EN7523 SoC Bert Vermeulen
2021-07-30 13:45 ` Bert Vermeulen
2021-07-30 14:48 ` Arnd Bergmann
2021-07-30 14:48 ` Arnd Bergmann
2021-07-30 15:15 ` John Crispin
2021-07-30 15:15 ` John Crispin
2021-07-30 16:55 ` Arnd Bergmann
2021-07-30 16:55 ` Arnd Bergmann
2021-08-01 16:44 ` Ard Biesheuvel
2021-08-01 16:44 ` Ard Biesheuvel
2021-09-03 16:20 ` Felix Fietkau
2021-09-03 16:20 ` Felix Fietkau
2021-09-03 17:47 ` Ard Biesheuvel
2021-09-03 17:47 ` Ard Biesheuvel
2021-08-04 16:43 ` Bert Vermeulen
2021-08-04 16:43 ` Bert Vermeulen
2021-08-09 12:46 ` Geert Uytterhoeven
2021-08-09 12:46 ` Geert Uytterhoeven
2021-08-09 12:49 ` Ard Biesheuvel
2021-08-09 12:49 ` Ard Biesheuvel
2021-08-09 13:00 ` Bert Vermeulen
2021-08-09 13:00 ` Bert Vermeulen
2021-07-30 13:45 ` [PATCH 5/5] ARM: multi_v7_defconfig: Add " Bert Vermeulen
2021-07-30 13:45 ` Bert Vermeulen
2021-07-30 14:26 ` [PATCH 0/4] " Linus Walleij
2021-07-30 14:26 ` Linus Walleij
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