From: Andrei Lalaev <andrey.lalaev@gmail.com>
To: Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Chen Wang <chen.wang@linux.dev>,
Inochi Amaoto <inochiama@gmail.com>,
Paul Walmsley <pjw@kernel.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Alexandre Ghiti <alex@ghiti.fr>, Yao Zi <me@ziyao.cc>
Cc: devicetree@vger.kernel.org, linux-riscv@lists.infradead.org,
sophgo@lists.linux.dev, linux-kernel@vger.kernel.org,
Andrei Lalaev <andrey.lalaev@gmail.com>
Subject: [PATCH 1/2] riscv: dts: sophgo: cv1800b-milkv-duo: drop reserved memory node
Date: Mon, 21 Sep 2026 17:08:59 +0200 [thread overview]
Message-ID: <20260921-sophgo-remove-coprocessor-node-v1-1-ace29446b327@gmail.com> (raw)
In-Reply-To: <20260921-sophgo-remove-coprocessor-node-v1-0-ace29446b327@gmail.com>
The current FSBL can load firmware to any address and can also
disable the coprocessor. Therefore, FSBL should modify the device
tree at runtime. Remove the node accordingly.
Signed-off-by: Andrei Lalaev <andrey.lalaev@gmail.com>
---
arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts | 11 -----------
1 file changed, 11 deletions(-)
diff --git a/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts b/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts
index 0e6d79e6e3a4..02848bae2e16 100644
--- a/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts
+++ b/arch/riscv/boot/dts/sophgo/cv1800b-milkv-duo.dts
@@ -22,17 +22,6 @@ aliases {
chosen {
stdout-path = "serial0:115200n8";
};
-
- reserved-memory {
- #address-cells = <1>;
- #size-cells = <1>;
- ranges;
-
- coprocessor_rtos: region@83f40000 {
- reg = <0x83f40000 0xc0000>;
- no-map;
- };
- };
};
&osc {
--
2.55.0
next prev parent reply other threads:[~2026-09-21 15:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-21 15:08 [PATCH 0/2] Do not reserve memory for coprocessor FW Andrei Lalaev
2026-09-21 15:08 ` Andrei Lalaev [this message]
2026-09-21 15:09 ` [PATCH 2/2] riscv: dts: sophgo: sg2002-milkv-duo256m: drop reserved memory node Andrei Lalaev
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