From: "François Ozog" <francois.ozog@linaro.org>
To: Simon Glass <sjg@chromium.org>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>,
Ilias Apalodimas <ilias.apalodimas@linaro.org>,
Tom Rini <trini@konsulko.com>,
U-Boot Mailing List <u-boot@lists.denx.de>,
qemu-devel@nongnu.org
Subject: Re: [PATCH 02/16] arm: qemu: Explain how to extract the generate devicetree
Date: Wed, 13 Oct 2021 03:19:49 +0200 [thread overview]
Message-ID: <CAHFG_=Wj9w0w8C88O4BNN4pO-C+wMqFuqmVh4F1avcwsqE_csQ@mail.gmail.com> (raw)
In-Reply-To: <20211013010120.96851-3-sjg@chromium.org>
Le mer. 13 oct. 2021 à 03:02, Simon Glass <sjg@chromium.org> a écrit :
> QEMU currently generates a devicetree for use with U-Boot. Explain how to
> obtain it.
>
> Signed-off-by: Simon Glass <sjg@chromium.org>
> ---
>
> doc/board/emulation/qemu-arm.rst | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/doc/board/emulation/qemu-arm.rst
> b/doc/board/emulation/qemu-arm.rst
> index 97b6ec64905..b458a398c69 100644
> --- a/doc/board/emulation/qemu-arm.rst
> +++ b/doc/board/emulation/qemu-arm.rst
> @@ -91,3 +91,15 @@ The debug UART on the ARM virt board uses these
> settings::
> CONFIG_DEBUG_UART_PL010=y
> CONFIG_DEBUG_UART_BASE=0x9000000
> CONFIG_DEBUG_UART_CLOCK=0
> +
> +Obtaining the QEMU devicetree
> +-----------------------------
> +
> +QEMU generates its own devicetree to pass to U-Boot and does this by
> default.
> +You can use `-dtb u-boot.dtb` to force QEMU to use U-Boot's in-tree
> version.
this is for either Qemu experts or u-boot for Qemu maintainers. Not for the
kernel développer as it is recipe for problems: could you add this warning ?
>
> +
> +To obtain the devicetree that qemu generates, add `-machine
> dumpdtb=dtb.dtb`,
> +e.g.::
> +
> + qemu-system-aarch64 -machine virt -nographic -cpu cortex-a57 \
> + -bios u-boot.bin -machine dumpdtb=dtb.dtb
> --
> 2.33.0.882.g93a45727a2-goog
>
> --
François-Frédéric Ozog | *Director Business Development*
T: +33.67221.6485
francois.ozog@linaro.org | Skype: ffozog
WARNING: multiple messages have this Message-ID (diff)
From: "François Ozog" <francois.ozog@linaro.org>
To: Simon Glass <sjg@chromium.org>
Cc: U-Boot Mailing List <u-boot@lists.denx.de>,
Albert Aribaud <albert.u.boot@aribaud.net>,
Ilias Apalodimas <ilias.apalodimas@linaro.org>,
qemu-devel@nongnu.org, Tom Rini <trini@konsulko.com>
Subject: Re: [PATCH 02/16] arm: qemu: Explain how to extract the generate devicetree
Date: Wed, 13 Oct 2021 03:19:49 +0200 [thread overview]
Message-ID: <CAHFG_=Wj9w0w8C88O4BNN4pO-C+wMqFuqmVh4F1avcwsqE_csQ@mail.gmail.com> (raw)
In-Reply-To: <20211013010120.96851-3-sjg@chromium.org>
[-- Attachment #1: Type: text/plain, Size: 1541 bytes --]
Le mer. 13 oct. 2021 à 03:02, Simon Glass <sjg@chromium.org> a écrit :
> QEMU currently generates a devicetree for use with U-Boot. Explain how to
> obtain it.
>
> Signed-off-by: Simon Glass <sjg@chromium.org>
> ---
>
> doc/board/emulation/qemu-arm.rst | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/doc/board/emulation/qemu-arm.rst
> b/doc/board/emulation/qemu-arm.rst
> index 97b6ec64905..b458a398c69 100644
> --- a/doc/board/emulation/qemu-arm.rst
> +++ b/doc/board/emulation/qemu-arm.rst
> @@ -91,3 +91,15 @@ The debug UART on the ARM virt board uses these
> settings::
> CONFIG_DEBUG_UART_PL010=y
> CONFIG_DEBUG_UART_BASE=0x9000000
> CONFIG_DEBUG_UART_CLOCK=0
> +
> +Obtaining the QEMU devicetree
> +-----------------------------
> +
> +QEMU generates its own devicetree to pass to U-Boot and does this by
> default.
> +You can use `-dtb u-boot.dtb` to force QEMU to use U-Boot's in-tree
> version.
this is for either Qemu experts or u-boot for Qemu maintainers. Not for the
kernel développer as it is recipe for problems: could you add this warning ?
>
> +
> +To obtain the devicetree that qemu generates, add `-machine
> dumpdtb=dtb.dtb`,
> +e.g.::
> +
> + qemu-system-aarch64 -machine virt -nographic -cpu cortex-a57 \
> + -bios u-boot.bin -machine dumpdtb=dtb.dtb
> --
> 2.33.0.882.g93a45727a2-goog
>
> --
François-Frédéric Ozog | *Director Business Development*
T: +33.67221.6485
francois.ozog@linaro.org | Skype: ffozog
[-- Attachment #2: Type: text/html, Size: 3461 bytes --]
next prev parent reply other threads:[~2021-10-13 1:20 UTC|newest]
Thread overview: 164+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-13 1:01 [PATCH 00/16] fdt: Make OF_BOARD a boolean option Simon Glass
2021-10-13 1:01 ` Simon Glass
2021-10-13 1:01 ` [PATCH 01/16] arm: qemu: Mention -nographic in the docs Simon Glass
2021-10-13 1:01 ` Simon Glass
2021-10-13 1:01 ` [PATCH 02/16] arm: qemu: Explain how to extract the generate devicetree Simon Glass
2021-10-13 1:01 ` Simon Glass
2021-10-13 1:19 ` François Ozog [this message]
2021-10-13 1:19 ` François Ozog
2021-10-13 16:58 ` Simon Glass
2021-10-13 16:58 ` Simon Glass
2021-10-13 17:36 ` Tom Rini
2021-10-13 17:36 ` Tom Rini
2021-10-13 1:01 ` [PATCH 03/16] riscv: " Simon Glass
2021-10-13 1:01 ` Simon Glass
2021-10-13 1:01 ` [PATCH 04/16] arm: qemu: Add a devicetree file for qemu_arm Simon Glass
2021-10-13 1:01 ` Simon Glass
2021-10-13 1:01 ` [PATCH 05/16] arm: qemu: Add a devicetree file for qemu_arm64 Simon Glass
2021-10-13 1:01 ` Simon Glass
2021-10-13 1:15 ` François Ozog
2021-10-13 1:15 ` François Ozog
2021-10-27 14:44 ` Alex Bennée
2021-10-27 14:44 ` Alex Bennée
2021-10-27 14:56 ` Tom Rini
2021-10-27 14:56 ` Tom Rini
2021-10-27 18:34 ` Simon Glass
2021-10-27 18:34 ` Simon Glass
2021-10-27 18:39 ` Tom Rini
2021-10-27 18:39 ` Tom Rini
2021-10-27 19:45 ` Alex Bennée
2021-10-27 19:45 ` Alex Bennée
2021-10-13 1:01 ` [PATCH 06/16] riscv: qemu: Add devicetree files for qemu_riscv32/64 Simon Glass
2021-10-13 1:01 ` Simon Glass
2021-10-13 4:21 ` Heinrich Schuchardt
2021-10-13 4:21 ` Heinrich Schuchardt
2021-10-13 1:01 ` [PATCH 07/16] arm: rpi: Add a devicetree file for rpi_4 Simon Glass
2021-10-13 1:24 ` François Ozog
2021-10-13 1:01 ` [PATCH 08/16] arm: vexpress: Add a devicetree file for juno Simon Glass
2021-10-13 1:01 ` [PATCH 09/16] arm: xenguest_arm64: Add a fake devicetree file Simon Glass
2021-10-13 1:01 ` [PATCH 10/16] arm: octeontx: " Simon Glass
2021-10-13 1:27 ` François Ozog
2021-10-13 1:01 ` [PATCH 11/16] arm: xilinx_versal_virt: Add a " Simon Glass
2021-10-13 6:13 ` Michal Simek
2021-10-13 16:58 ` Simon Glass
2021-10-13 1:01 ` [PATCH 12/16] arm: bcm7xxx: " Simon Glass
2021-10-13 1:01 ` [PATCH 13/16] arm: qemu-ppce500: " Simon Glass
2021-10-13 1:01 ` [PATCH 14/16] arm: highbank: Add a fake " Simon Glass
2021-10-13 1:01 ` [PATCH 15/16] fdt: Make OF_BOARD a bool option Simon Glass
2021-10-13 4:22 ` Heinrich Schuchardt
2021-10-13 16:58 ` Simon Glass
2021-10-13 17:30 ` Sean Anderson
2021-10-24 19:53 ` Simon Glass
2021-10-13 1:01 ` [PATCH 16/16] Drop CONFIG_BINMAN_STANDALONE_FDT Simon Glass
2021-10-13 1:29 ` [PATCH 00/16] fdt: Make OF_BOARD a boolean option Bin Meng
2021-10-13 1:29 ` Bin Meng
2021-10-13 1:34 ` Tom Rini
2021-10-13 1:34 ` Tom Rini
2021-10-13 8:02 ` François Ozog
2021-10-13 8:02 ` François Ozog
2021-10-13 14:47 ` Simon Glass
2021-10-13 14:47 ` Simon Glass
2021-10-13 17:34 ` François Ozog
2021-10-13 17:34 ` François Ozog
2021-10-13 18:06 ` Simon Glass
2021-10-13 18:06 ` Simon Glass
2021-10-14 14:56 ` Tom Rini
2021-10-14 14:56 ` Tom Rini
2021-10-14 15:17 ` Simon Glass
2021-10-14 15:17 ` Simon Glass
2021-10-14 15:28 ` Tom Rini
2021-10-14 15:28 ` Tom Rini
2021-10-14 17:58 ` François Ozog
2021-10-14 17:58 ` François Ozog
2021-10-15 18:03 ` Simon Glass
2021-10-15 18:03 ` Simon Glass
2021-10-26 6:46 ` Ilias Apalodimas
2021-10-26 6:46 ` Ilias Apalodimas
2021-10-27 12:59 ` Tom Rini
2021-10-27 12:59 ` Tom Rini
2021-10-27 13:30 ` François Ozog
2021-10-27 13:30 ` François Ozog
2021-10-27 13:38 ` Tom Rini
2021-10-27 13:38 ` Tom Rini
2021-10-27 13:47 ` Ilias Apalodimas
2021-10-27 13:47 ` Ilias Apalodimas
2021-10-27 14:26 ` Tom Rini
2021-10-27 14:26 ` Tom Rini
2021-10-27 13:48 ` François Ozog
2021-10-27 13:48 ` François Ozog
2021-10-27 14:30 ` Tom Rini
2021-10-27 14:30 ` Tom Rini
2021-10-28 2:50 ` Simon Glass
2021-10-28 2:50 ` Simon Glass
2021-10-28 8:21 ` François Ozog
2021-10-28 8:21 ` François Ozog
2021-10-28 14:30 ` Simon Glass
2021-10-28 14:30 ` Simon Glass
2021-10-28 14:50 ` François Ozog
2021-10-28 14:50 ` François Ozog
2021-10-28 15:44 ` Simon Glass
2021-10-28 15:44 ` Simon Glass
2021-10-28 16:25 ` François Ozog
2021-10-28 16:25 ` François Ozog
2021-11-02 14:59 ` Simon Glass
2021-11-02 14:59 ` Simon Glass
2021-11-01 11:04 ` Ilias Apalodimas
2021-11-01 11:04 ` Ilias Apalodimas
2021-11-02 10:06 ` Michael Walle
2021-11-02 10:06 ` Michael Walle
2021-11-02 12:34 ` François Ozog
2021-11-02 12:34 ` François Ozog
2021-11-02 14:59 ` Simon Glass
2021-11-02 14:59 ` Simon Glass
2021-10-27 12:48 ` Tom Rini
2021-10-27 12:48 ` Tom Rini
2021-10-27 13:15 ` François Ozog
2021-10-27 13:15 ` François Ozog
2021-10-27 13:23 ` Heinrich Schuchardt
2021-10-27 13:23 ` Heinrich Schuchardt
2021-10-27 14:55 ` Tom Rini
2021-10-27 14:55 ` Tom Rini
2021-10-27 15:02 ` Heinrich Schuchardt
2021-10-27 15:02 ` Heinrich Schuchardt
2021-10-27 18:04 ` Tom Rini
2021-10-27 18:04 ` Tom Rini
2021-10-27 14:54 ` Tom Rini
2021-10-27 14:54 ` Tom Rini
2021-10-27 15:10 ` Mark Kettenis
2021-10-27 15:10 ` Mark Kettenis
2021-10-27 15:24 ` Simon Glass
2021-10-27 15:24 ` Simon Glass
2021-10-27 18:06 ` Tom Rini
2021-10-27 18:06 ` Tom Rini
2021-10-27 18:11 ` François Ozog
2021-10-27 18:11 ` François Ozog
2021-10-27 21:52 ` Mark Kettenis
2021-10-27 21:52 ` Mark Kettenis
2021-10-27 16:02 ` François Ozog
2021-10-27 16:02 ` François Ozog
2021-10-27 19:06 ` Tom Rini
2021-10-27 19:06 ` Tom Rini
2021-10-27 22:00 ` François Ozog
2021-10-27 22:00 ` François Ozog
2021-10-28 14:41 ` Tom Rini
2021-10-28 14:41 ` Tom Rini
2021-10-14 16:24 ` Andre Przywara
2021-10-14 16:24 ` Andre Przywara
2021-10-14 17:48 ` François Ozog
2021-10-14 17:48 ` François Ozog
2021-10-14 18:12 ` François Ozog
2021-10-14 18:12 ` François Ozog
2021-10-14 21:00 ` Simon Glass
2021-10-14 21:00 ` Simon Glass
2021-10-13 12:39 ` Philippe Mathieu-Daudé
2021-10-13 12:39 ` Philippe Mathieu-Daudé
2021-10-13 13:06 ` François Ozog
2021-10-13 13:06 ` François Ozog
2021-10-13 4:26 ` Heinrich Schuchardt
2021-10-13 4:26 ` Heinrich Schuchardt
2021-10-13 13:06 ` François Ozog
2021-10-13 13:06 ` François Ozog
2021-10-13 9:50 ` Andre Przywara
2021-10-13 9:50 ` Andre Przywara
2021-10-13 13:05 ` François Ozog
2021-10-13 13:05 ` François Ozog
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