linux-kernel - [PATCH 3/3] riscv: dts: spacemit: Move eMMC under storage-bus for K1

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Message-Id: <20250623-k1-dma-buses-rfc-wip-v1-3-c0144082061f@iscas.ac.cn>
Date: Mon, 23 Jun 2025 18:04:18 +0800
From: Vivian Wang <wangruikang@...as.ac.cn>
To: Yixun Lan <dlan@...too.org>, Guodong Xu <guodong@...cstar.com>, 
 Ze Huang <huangze@...t.edu.cn>, Alex Elder <elder@...cstar.com>, 
 spacemit@...ts.linux.dev, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Paul Walmsley <paul.walmsley@...ive.com>, 
 Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
 Alexandre Ghiti <alex@...ti.fr>
Cc: Vivian Wang <uwu@...m.page>, devicetree@...r.kernel.org, 
 linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Vivian Wang <wangruikang@...as.ac.cn>
Subject: [PATCH 3/3] riscv: dts: spacemit: Move eMMC under storage-bus for
 K1

SDHCI devices in Spacemit K1 use storage-bus translations. Move the node
emmc under storage-bus to reflect this fact.

Signed-off-by: Vivian Wang <wangruikang@...as.ac.cn>
---
 arch/riscv/boot/dts/spacemit/k1.dtsi | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/arch/riscv/boot/dts/spacemit/k1.dtsi b/arch/riscv/boot/dts/spacemit/k1.dtsi
index 0d41694699851e672a833601b62c2b2ad3daae79..2d40360994d87edfbdaefc364ae706712022ba09 100644
--- a/arch/riscv/boot/dts/spacemit/k1.dtsi
+++ b/arch/riscv/boot/dts/spacemit/k1.dtsi
@@ -403,15 +403,6 @@ pll: clock-controller@...90000 {
 			#clock-cells = <1>;
 		};
 
-		emmc: mmc@...81000 {
-			compatible = "spacemit,k1-sdhci";
-			reg = <0x0 0xd4281000 0x0 0x200>;
-			clocks = <&syscon_apmu CLK_SDH_AXI>, <&syscon_apmu CLK_SDH2>;
-			clock-names = "core", "io";
-			interrupts = <101>;
-			status = "disabled";
-		};
-
 		syscon_apmu: system-controller@...82800 {
 			compatible = "spacemit,k1-syscon-apmu";
 			reg = <0x0 0xd4282800 0x0 0x400>;
@@ -633,6 +624,16 @@ storage-bus {
 			#address-cells = <2>;
 			#size-cells = <2>;
 			dma-ranges = <0x0 0x00000000 0x0 0x00000000 0x0 0x80000000>;
+
+			emmc: mmc@...81000 {
+				compatible = "spacemit,k1-sdhci";
+				reg = <0x0 0xd4281000 0x0 0x200>;
+				clocks = <&syscon_apmu CLK_SDH_AXI>,
+					 <&syscon_apmu CLK_SDH2>;
+				clock-names = "core", "io";
+				interrupts = <101>;
+				status = "disabled";
+			};
 		};
 	};
 };

-- 
2.49.0