From: William McVicker <willmcvicker@google.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Cc: Peter Griffin <peter.griffin@linaro.org>,
robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
mturquette@baylibre.com, conor+dt@kernel.org, sboyd@kernel.org,
tomasz.figa@gmail.com, s.nawrocki@samsung.com,
linus.walleij@linaro.org, wim@linux-watchdog.org,
linux@roeck-us.net, catalin.marinas@arm.com, will@kernel.org,
arnd@arndb.de, olof@lixom.net, cw00.choi@samsung.com,
tudor.ambarus@linaro.org, andre.draszik@linaro.org,
semen.protsenko@linaro.org, soc@kernel.org,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org, linux-clk@vger.kernel.org,
linux-gpio@vger.kernel.org, linux-watchdog@vger.kernel.org,
kernel-team@android.com
Subject: Re: [PATCH 19/21] google/gs101: Add dt overlay for oriole board
Date: Mon, 9 Oct 2023 13:03:59 -0700 [thread overview]
Message-ID: <ZSRcr6JRbj-wZf7R@google.com> (raw)
In-Reply-To: <7f2032c2-812a-46b5-8914-056cd53c37cb@linaro.org>
On 10/05/2023, Krzysztof Kozlowski wrote:
> On 05/10/2023 17:56, Peter Griffin wrote:
> > The LK bootloader on Pixel6 searches for a dt overlay in the
> > dtbo partition with a board_id and board_rev that matches
> > what is baked into the device. If this overlay is not present
> > then the phone will bootloop in fastboot and you can't boot
> > the upstream kernel.
> >
> > This commit adds a dtbo for the production oriole variant.
> > The other pre-production board overlays are not included
> > at this time.
> >
> > Adding the dtbo here allows for a better experience when
> > building/booting the upstream kernel on Pixel devices
> > as all the DT required to boot the device will be created
> > as part of the kernel build process. Rather than having to
> > fetch the dtbo from some other repo.
> >
> > Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
> > ---
> > arch/arm64/boot/dts/google/Makefile | 1 +
> > arch/arm64/boot/dts/google/gs101-oriole.dtso | 21 ++++++++++++++++++++
> > 2 files changed, 22 insertions(+)
> > create mode 100644 arch/arm64/boot/dts/google/gs101-oriole.dtso
> >
> > diff --git a/arch/arm64/boot/dts/google/Makefile b/arch/arm64/boot/dts/google/Makefile
> > index 6d2026a767d4..3f1761f8daa9 100644
> > --- a/arch/arm64/boot/dts/google/Makefile
> > +++ b/arch/arm64/boot/dts/google/Makefile
> > @@ -2,5 +2,6 @@
> >
> > dtb-$(CONFIG_ARCH_GOOGLE_TENSOR) += \
> > gs101-oriole.dtb \
> > + gs101-oriole.dtbo
> >
> >
> > diff --git a/arch/arm64/boot/dts/google/gs101-oriole.dtso b/arch/arm64/boot/dts/google/gs101-oriole.dtso
> > new file mode 100644
> > index 000000000000..50832fd94204
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/google/gs101-oriole.dtso
> > @@ -0,0 +1,21 @@
> > +// SPDX-License-Identifier: GPL-2.0-only
> > +/*
> > + * Oriole DVT Device Tree
> > + *
> > + * Copyright 2021-2023 Google,LLC
> > + */
> > +
> > +/dts-v1/;
> > +/plugin/;
> > +
> > +/ {
> > + board_id = <0x20304>;
> > + board_rev = <0x10000>;
>
> Undocumented properties. Please propose bindings... Also, underscores
> are not allowed, so in this form it is a no-go... although I understand
> the pain of not being able to change the bootloader.
>
> For reference:
> https://lore.kernel.org/all/20220605150747.GA3465286-robh@kernel.org/
> https://lore.kernel.org/all/20220610163343.GA1787330-robh@kernel.org/
These names are actually arbitrary and don't depend on the bootloader. They are
passed into the mkdtimg tool [1] using --id and --rev and used to create the
dt_table_entries. The bootloader traverses the table and picks the overlay
based on these properties. So we can use whatever property names we want
without changing the bootloader.
[1] https://android.googlesource.com/platform/system/libufdt/+/refs/heads/main/utils/
Thanks,
Will
>
>
> Best regards,
> Krzysztof
>
next prev parent reply other threads:[~2023-10-09 20:04 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-05 15:55 [PATCH 00/21] Add minimal Tensor/GS101 SoC support and Oriole/Pixel6 board Peter Griffin
2023-10-05 15:55 ` [PATCH 01/21] dt-bindings: interrupt-controller: Add gs101 interrupt controller Peter Griffin
2023-10-05 16:04 ` Krzysztof Kozlowski
2023-10-06 21:52 ` Linus Walleij
2023-10-05 15:55 ` [PATCH 02/21] dt-bindings: soc: samsung: exynos-pmu: Add gs101 compatible Peter Griffin
2023-10-05 16:05 ` Krzysztof Kozlowski
2023-10-05 15:56 ` [PATCH 03/21] dt-bindings: clock: Add Google gs101 clock management unit bindings Peter Griffin
2023-10-05 16:06 ` Krzysztof Kozlowski
2023-10-05 15:56 ` [PATCH 04/21] dt-bindings: soc: google: exynos-sysreg: add dedicated SYSREG compatibles to GS101 Peter Griffin
2023-10-05 16:07 ` Krzysztof Kozlowski
2023-10-06 12:41 ` Peter Griffin
2023-10-06 12:43 ` Krzysztof Kozlowski
2023-10-05 15:56 ` [PATCH 05/21] dt-bindings: watchdog: Document Google gs101 & gs201 watchdog bindings Peter Griffin
2023-10-05 16:08 ` Krzysztof Kozlowski
2023-10-05 17:37 ` William McVicker
2023-10-05 15:56 ` [PATCH 06/21] dt-bindings: arm: google: Add bindings for Google ARM platforms Peter Griffin
2023-10-06 20:44 ` Rob Herring
2023-10-05 15:56 ` [PATCH 07/21] dt-bindings: pinctrl: samsung: add google,gs101-pinctrl compatible Peter Griffin
2023-10-05 16:10 ` Krzysztof Kozlowski
2023-10-05 15:56 ` [PATCH 08/21] dt-bindings: pinctrl: samsung: add gs101-wakeup-eint compatible Peter Griffin
2023-10-05 16:10 ` Krzysztof Kozlowski
2023-10-05 15:56 ` [PATCH 09/21] dt-bindings: clock: gs101: Add cmu_top clock indices Peter Griffin
2023-10-05 16:11 ` Krzysztof Kozlowski
2023-10-05 15:56 ` [PATCH 10/21] dt-bindings: clock: gs101: Add cmu_apm " Peter Griffin
2023-10-05 16:11 ` Krzysztof Kozlowski
2023-10-05 15:56 ` [PATCH 11/21] dt-bindings: clock: gs101: Add cmu_misc " Peter Griffin
2023-10-05 15:56 ` [PATCH 12/21] clk: samsung: clk-pll: Add support for pll_{0516,0517,518} Peter Griffin
2023-10-05 17:39 ` William McVicker
2023-10-05 15:56 ` [PATCH 13/21] clk: samsung: clk-gs101: Add cmu_top registers, plls, mux and gates Peter Griffin
2023-10-05 17:42 ` William McVicker
2023-10-05 17:45 ` Krzysztof Kozlowski
2023-10-06 4:16 ` kernel test robot
2023-10-14 6:37 ` kernel test robot
2023-10-05 15:56 ` [PATCH 14/21] clk: samsung: clk-gs101: add CMU_APM support Peter Griffin
2023-10-05 17:43 ` William McVicker
2023-10-05 17:45 ` William McVicker
2023-10-05 15:56 ` [PATCH 15/21] clk: google: gs101: Add support for CMU_MISC clock unit Peter Griffin
2023-10-06 5:20 ` kernel test robot
2023-10-05 15:56 ` [PATCH 16/21] pinctrl: samsung: Add gs101 SoC pinctrl configuration Peter Griffin
2023-10-06 6:33 ` Krzysztof Kozlowski
2023-10-09 7:49 ` Peter Griffin
2023-10-05 15:56 ` [PATCH 17/21] watchdog: s3c2410_wdt: Add support for Google tensor SoCs Peter Griffin
2023-10-05 18:58 ` Guenter Roeck
2023-10-09 11:56 ` Peter Griffin
2023-10-05 15:56 ` [PATCH 18/21] arm64: dts: google: Add initial Google gs101 SoC support Peter Griffin
2023-10-05 16:21 ` Krzysztof Kozlowski
2023-10-05 17:59 ` William McVicker
[not found] ` <2023100520-cleaver-sinless-fbae@gregkh>
2023-10-05 19:18 ` Krzysztof Kozlowski
[not found] ` <2023100513-mashing-scrubber-ea59@gregkh>
2023-10-05 19:29 ` Krzysztof Kozlowski
2023-10-05 23:19 ` William McVicker
2023-10-06 6:06 ` Krzysztof Kozlowski
2023-10-06 8:48 ` Arnd Bergmann
2023-10-06 16:33 ` William McVicker
2023-10-07 14:34 ` Krzysztof Kozlowski
2023-10-09 16:10 ` William McVicker
2023-10-05 19:21 ` Krzysztof Kozlowski
2023-10-05 19:22 ` Krzysztof Kozlowski
2023-10-05 19:26 ` William McVicker
2023-10-09 12:01 ` Tudor Ambarus
2023-10-05 15:56 ` [PATCH 19/21] google/gs101: Add dt overlay for oriole board Peter Griffin
2023-10-05 16:33 ` Krzysztof Kozlowski
2023-10-09 20:03 ` William McVicker [this message]
2023-10-06 7:08 ` Geert Uytterhoeven
2023-10-06 20:52 ` Rob Herring
2023-10-10 12:09 ` Peter Griffin
2023-10-05 15:56 ` [PATCH 20/21] arm64: defconfig: Enable Google Tensor SoC Peter Griffin
2023-10-05 15:56 ` [PATCH 21/21] MAINTAINERS: add entry for " Peter Griffin
2023-10-05 16:32 ` [PATCH 00/21] Add minimal Tensor/GS101 SoC support and Oriole/Pixel6 board Krzysztof Kozlowski
2023-10-09 11:39 ` Peter Griffin
2023-10-09 11:10 ` Krzysztof Kozlowski
2023-10-09 11:40 ` Peter Griffin
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