linux-kernel - [PATCH 1/2] arm64: dts: ti: k3-j721e-sk: Fix reversed C6x carveout locations

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Message-ID: <20240801181232.55027-1-afd@ti.com>
Date: Thu, 1 Aug 2024 13:12:31 -0500
From: Andrew Davis <afd@...com>
To: Nishanth Menon <nm@...com>, Vignesh Raghavendra <vigneshr@...com>,
        Tero
 Kristo <kristo@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof
 Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley
	<conor+dt@...nel.org>
CC: <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Andrew Davis <afd@...com>
Subject: [PATCH 1/2] arm64: dts: ti: k3-j721e-sk: Fix reversed C6x carveout locations

The DMA carveout for the C6x core 0 is at 0xa6000000 and core 1 is at
0xa7000000. These are reversed in DT. While both C6x can access either
region, so this is not normally a problem, but if we start restricting
the memory each core can access (such as with firewalls) the cores
accessing the regions for the wrong core will not work. Fix this here.

Fixes: f46d16cf5b43 ("arm64: dts: ti: k3-j721e-sk: Add DDR carveout memory nodes")
Signed-off-by: Andrew Davis <afd@...com>
---
 arch/arm64/boot/dts/ti/k3-j721e-sk.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
index 89fbfb21e5d3b..e709edeb95cf7 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-j721e-sk.dts
@@ -120,7 +120,7 @@ main_r5fss1_core1_memory_region: r5f-memory@...00000 {
 			no-map;
 		};
 
-		c66_1_dma_memory_region: c66-dma-memory@...00000 {
+		c66_0_dma_memory_region: c66-dma-memory@...00000 {
 			compatible = "shared-dma-pool";
 			reg = <0x00 0xa6000000 0x00 0x100000>;
 			no-map;
@@ -132,7 +132,7 @@ c66_0_memory_region: c66-memory@...00000 {
 			no-map;
 		};
 
-		c66_0_dma_memory_region: c66-dma-memory@...00000 {
+		c66_1_dma_memory_region: c66-dma-memory@...00000 {
 			compatible = "shared-dma-pool";
 			reg = <0x00 0xa7000000 0x00 0x100000>;
 			no-map;
-- 
2.39.2