From: David Gibson <david@gibson.dropbear.id.au>
To: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Frank Rowand <frowand.list@gmail.com>,
Rob Herring <robh+dt@kernel.org>,
Pantelis Antoniou <pantelis.antoniou@konsulko.com>,
Masahiro Yamada <masahiroy@kernel.org>,
Vincent Guittot <vincent.guittot@linaro.org>,
linux-kernel@vger.kernel.org, anmar.oueja@linaro.org,
Bill Mills <bill.mills@linaro.org>,
devicetree@vger.kernel.org,
Michal Marek <michal.lkml@markovi.net>
Subject: Re: [PATCH V6 2/6] scripts: dtc: Build fdtoverlay tool
Date: Sat, 23 Jan 2021 11:35:18 +1100 [thread overview]
Message-ID: <20210123003518.GG4400@yekko.fritz.box> (raw)
In-Reply-To: <2dfec4acb1bfbab08b431908ace0a77cc3279434.1611312122.git.viresh.kumar@linaro.org>
[-- Attachment #1: Type: text/plain, Size: 1880 bytes --]
On Fri, Jan 22, 2021 at 04:20:32PM +0530, Viresh Kumar wrote:
> We will start building overlays for platforms soon in the kernel and
> would need fdtoverlay going forward. Lets start building it.
>
> The fdtoverlay program applies (or merges) one or more overlay dtb
Saying "merges" here is probably misleading, since as I mentioned
elsewhere fdtoverlay can *not* merge overlays, only apply them to a
base tree.
> blobs to a base dtb blob. The kernel build system would later use
> fdtoverlay to generate the overlaid blobs based on platform specific
> configurations.
>
> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
> ---
> scripts/dtc/Makefile | 6 +++++-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/scripts/dtc/Makefile b/scripts/dtc/Makefile
> index 4852bf44e913..5f19386a49eb 100644
> --- a/scripts/dtc/Makefile
> +++ b/scripts/dtc/Makefile
> @@ -1,13 +1,17 @@
> # SPDX-License-Identifier: GPL-2.0
> # scripts/dtc makefile
>
> -hostprogs-always-$(CONFIG_DTC) += dtc
> +hostprogs-always-$(CONFIG_DTC) += dtc fdtoverlay
> hostprogs-always-$(CHECK_DT_BINDING) += dtc
>
> dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o \
> srcpos.o checks.o util.o
> dtc-objs += dtc-lexer.lex.o dtc-parser.tab.o
>
> +libfdt-objs := fdt.o fdt_ro.o fdt_wip.o fdt_sw.o fdt_rw.o fdt_strerror.o fdt_empty_tree.o fdt_addresses.o fdt_overlay.o
> +libfdt = $(addprefix libfdt/,$(libfdt-objs))
> +fdtoverlay-objs := $(libfdt) fdtoverlay.o util.o
> +
> # Source files need to get at the userspace version of libfdt_env.h to compile
> HOST_EXTRACFLAGS += -I $(srctree)/$(src)/libfdt
>
--
David Gibson | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au | minimalist, thank you. NOT _the_ _other_
| _way_ _around_!
http://www.ozlabs.org/~dgibson
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 833 bytes --]
next prev parent reply other threads:[~2021-01-23 1:06 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-22 10:50 [PATCH V6 0/6] dt: build overlays Viresh Kumar
2021-01-22 10:50 ` [PATCH V6 1/6] scripts: dtc: Fetch fdtoverlay.c from external DTC project Viresh Kumar
2021-01-22 10:50 ` [PATCH V6 2/6] scripts: dtc: Build fdtoverlay tool Viresh Kumar
2021-01-23 0:35 ` David Gibson [this message]
2021-01-25 3:15 ` Viresh Kumar
2021-01-29 6:03 ` Frank Rowand
2021-01-29 6:11 ` Viresh Kumar
2021-01-22 10:50 ` [PATCH V6 3/6] scripts: dtc: Remove the unused fdtdump.c file Viresh Kumar
2021-01-22 10:50 ` [PATCH V6 4/6] kbuild: Add support to build overlays (%.dtbo) Viresh Kumar
2021-01-22 11:12 ` Masahiro Yamada
2021-01-22 10:50 ` [PATCH V6 5/6] of: unittest: Create overlay_common.dtsi and testcases_common.dtsi Viresh Kumar
2021-01-23 3:07 ` David Gibson
2021-01-25 3:16 ` Viresh Kumar
2021-01-26 3:18 ` Frank Rowand
2021-01-27 5:56 ` Viresh Kumar
2021-01-29 5:59 ` Frank Rowand
2021-01-29 6:39 ` Frank Rowand
2021-01-22 10:50 ` [PATCH V6 6/6] of: unittest: Statically apply overlays using fdtoverlay Viresh Kumar
2021-01-26 3:15 ` Frank Rowand
2021-01-26 3:21 ` Frank Rowand
2021-01-26 3:45 ` [PATCH V6 0/6] dt: build overlays Frank Rowand
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210123003518.GG4400@yekko.fritz.box \
--to=david@gibson.dropbear.id.au \
--cc=anmar.oueja@linaro.org \
--cc=bill.mills@linaro.org \
--cc=devicetree@vger.kernel.org \
--cc=frowand.list@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=masahiroy@kernel.org \
--cc=michal.lkml@markovi.net \
--cc=pantelis.antoniou@konsulko.com \
--cc=robh+dt@kernel.org \
--cc=vincent.guittot@linaro.org \
--cc=viresh.kumar@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).