From: Tianling Shen <cnsztl@gmail.com>
To: Rob Herring <robh+dt@kernel.org>,
Heiko Stuebner <heiko@sntech.de>,
Tianling Shen <cnsztl@gmail.com>,
Marty Jones <mj8263788@gmail.com>, Pavel Machek <pavel@ucw.cz>
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH] arm64: dts: rockchip: add EEPROM node for NanoPi R4S
Date: Mon, 7 Jun 2021 16:17:27 +0800 [thread overview]
Message-ID: <20210607081727.4723-1-cnsztl@gmail.com> (raw)
NanoPi R4S has a EEPROM attached to the 2nd I2C bus (U92), which
stores the MAC address.
Signed-off-by: Tianling Shen <cnsztl@gmail.com>
---
arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts b/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts
index cef4d18b599d..4a82f50a07c5 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts
@@ -68,6 +68,15 @@
status = "disabled";
};
+&i2c2 {
+ eeprom@51 {
+ compatible = "microchip,24c02", "atmel,24c02";
+ reg = <0x51>;
+ pagesize = <16>;
+ read-only; /* This holds our MAC */
+ };
+};
+
&i2c4 {
status = "disabled";
};
--
2.17.1
next reply other threads:[~2021-06-07 8:17 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-07 8:17 Tianling Shen [this message]
2021-06-07 8:35 ` [PATCH] arm64: dts: rockchip: add EEPROM node for NanoPi R4S Chen-Yu Tsai
2021-06-07 12:48 ` Tianling Shen
2021-06-07 9:14 ` Johan Jonker
2021-06-07 9:40 ` Chen-Yu Tsai
2021-06-07 10:26 ` Johan Jonker
2021-06-07 11:20 ` Chen-Yu Tsai
2021-06-07 16:01 ` Tianling Shen
2021-06-07 17:04 ` Johan Jonker
2021-06-07 17:08 ` Chen-Yu Tsai
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=20210607081727.4723-1-cnsztl@gmail.com \
--to=cnsztl@gmail.com \
--cc=devicetree@vger.kernel.org \
--cc=heiko@sntech.de \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-rockchip@lists.infradead.org \
--cc=mj8263788@gmail.com \
--cc=pavel@ucw.cz \
--cc=robh+dt@kernel.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).