openwrt/target/linux/starfive/patches-6.6/1018-riscv-dts-starfive-Mark-the-JH7100-as-having-non-coh.patch
Zoltan HERPAI e2e2fc3cd0 starfive: add patches for 6.6
Add updated patches for 6.6. DMA/cache-handling patches
have been reworked / backported from upstream.

Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
2024-09-03 00:03:19 +02:00

27 lines
879 B
Diff

From 29e4bc0fafd9add93acc967f3992948b3afe7176 Mon Sep 17 00:00:00 2001
From: Emil Renner Berthing <kernel@esmil.dk>
Date: Thu, 30 Nov 2023 16:19:27 +0100
Subject: [PATCH 1018/1024] riscv: dts: starfive: Mark the JH7100 as having
non-coherent DMAs
The StarFive JH7100 SoC has non-coherent device DMAs, so mark the
soc bus as such.
Link: https://github.com/starfive-tech/JH7100_Docs/blob/main/JH7100%20Cache%20Coherence%20V1.0.pdf
Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
---
arch/riscv/boot/dts/starfive/jh7100.dtsi | 1 +
1 file changed, 1 insertion(+)
--- a/arch/riscv/boot/dts/starfive/jh7100.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7100.dtsi
@@ -138,6 +138,7 @@
interrupt-parent = <&plic>;
#address-cells = <2>;
#size-cells = <2>;
+ dma-noncoherent;
ranges;
clint: clint@2000000 {