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Message-ID: <20230721221552.1973203-4-contact@jookia.org>
Date: Sat, 22 Jul 2023 08:15:51 +1000
From: John Watts <contact@...kia.org>
To: linux-sunxi@...ts.linux.dev
Cc: Wolfgang Grandegger <wg@...ndegger.com>,
Marc Kleine-Budde <mkl@...gutronix.de>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Chen-Yu Tsai <wens@...e.org>,
Jernej Skrabec <jernej.skrabec@...il.com>,
Samuel Holland <samuel@...lland.org>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>, linux-can@...r.kernel.org,
netdev@...r.kernel.org, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
linux-riscv@...ts.infradead.org, John Watts <contact@...kia.org>
Subject: [PATCH v2 2/4] riscv: dts: allwinner: d1: Add CAN controller nodes
The Allwinner D1, T113 provide two CAN controllers that are variants
of the R40 controller.
I have tested support for these controllers on two boards:
- A Lichee Panel RV 86 Panel running a D1 chip
- A Mango Pi MQ Dual running a T113-s3 chip
Both of these fully support both CAN controllers.
Signed-off-by: John Watts <contact@...kia.org>
---
.../boot/dts/allwinner/sunxi-d1s-t113.dtsi | 30 +++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi b/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi
index 1bb1e5cae602..4086c0cc0f9d 100644
--- a/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi
+++ b/arch/riscv/boot/dts/allwinner/sunxi-d1s-t113.dtsi
@@ -131,6 +131,18 @@ uart3_pb_pins: uart3-pb-pins {
pins = "PB6", "PB7";
function = "uart3";
};
+
+ /omit-if-no-ref/
+ can0_pins: can0-pins {
+ pins = "PB2", "PB3";
+ function = "can0";
+ };
+
+ /omit-if-no-ref/
+ can1_pins: can1-pins {
+ pins = "PB4", "PB5";
+ function = "can1";
+ };
};
ccu: clock-controller@...1000 {
@@ -879,5 +891,23 @@ rtc: rtc@...0000 {
clock-names = "bus", "hosc", "ahb";
#clock-cells = <1>;
};
+
+ can0: can@...4000 {
+ compatible = "allwinner,sun20i-d1-can";
+ reg = <0x02504000 0x400>;
+ interrupts = <SOC_PERIPHERAL_IRQ(21) IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_CAN0>;
+ resets = <&ccu RST_BUS_CAN0>;
+ status = "disabled";
+ };
+
+ can1: can@...4400 {
+ compatible = "allwinner,sun20i-d1-can";
+ reg = <0x02504400 0x400>;
+ interrupts = <SOC_PERIPHERAL_IRQ(22) IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&ccu CLK_BUS_CAN1>;
+ resets = <&ccu RST_BUS_CAN1>;
+ status = "disabled";
+ };
};
};
--
2.41.0
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