linux-kernel - [PATCH v3 11/11] riscv: dts: spacemit: add uart1 node for K1 SoC

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Message-Id: <20240703-k1-01-basic-dt-v3-11-12f73b47461e@gentoo.org>
Date: Wed, 03 Jul 2024 14:55:14 +0000
From: Yixun Lan <dlan@...too.org>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Conor Dooley <conor@...nel.org>, 
 Paul Walmsley <paul.walmsley@...ive.com>, 
 Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
 Daniel Lezcano <daniel.lezcano@...aro.org>, 
 Thomas Gleixner <tglx@...utronix.de>, 
 Samuel Holland <samuel.holland@...ive.com>, 
 Anup Patel <anup@...infault.org>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Jiri Slaby <jirislaby@...nel.org>, Lubomir Rintel <lkundrak@...sk>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-riscv@...ts.infradead.org, linux-serial@...r.kernel.org, 
 Inochi Amaoto <inochiama@...look.com>, Icenowy Zheng <uwu@...nowy.me>, 
 Meng Zhang <zhangmeng.kevin@...cemit.com>, Yangyu Chen <cyy@...self.name>, 
 Yixun Lan <dlan@...too.org>
Subject: [PATCH v3 11/11] riscv: dts: spacemit: add uart1 node for K1 SoC

Devices in 0xf000,0000 - 0xf080,0000 are reserved for TEE purpose,
so add uart1 here but mark its status as reserved.

Signed-off-by: Yixun Lan <dlan@...too.org>

---
This patch can be folded into "riscv: dts: add initial SpacemiT K1 SoC device tree",
if maintainer finds it's too trivial to have an independent patch..
---
 arch/riscv/boot/dts/spacemit/k1.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k1.dtsi b/arch/riscv/boot/dts/spacemit/k1.dtsi
index a076e35855a2e..fee8921513c1f 100644
--- a/arch/riscv/boot/dts/spacemit/k1.dtsi
+++ b/arch/riscv/boot/dts/spacemit/k1.dtsi
@@ -372,5 +372,15 @@ clint: timer@...00000 {
 					      <&cpu6_intc 3>, <&cpu6_intc 7>,
 					      <&cpu7_intc 3>, <&cpu7_intc 7>;
 		};
+
+		sec_uart1: serial@...12000 {
+			compatible = "spacemit,k1-uart", "intel,xscale-uart";
+			reg = <0x0 0xf0612000 0x0 0x100>;
+			interrupts = <43>;
+			clock-frequency = <14857000>;
+			reg-shift = <2>;
+			reg-io-width = <4>;
+			status = "reserved"; /* for TEE usage */
+		};
 	};
 };

-- 
2.45.2