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* [PATCH 1/2] arm64: dts: rockchip: Remove bogus "amba" bus nodes
@ 2021-01-20 23:42 ` Robin Murphy
  0 siblings, 0 replies; 6+ messages in thread
From: Robin Murphy @ 2021-01-20 23:42 UTC (permalink / raw)
  To: heiko; +Cc: linux-rockchip, linux-arm-kernel

The "amba" bus nodes wrapping all the DMA-330 nodes serve no useful
purpose, and certainly bear no relation at all to the actual underlying
interconnect topology. They appear to be cargo-cult copying from a
design misstep in the very early days of FDT adoption on ARM, which was
righted with the "arm,primecell" compatible, and the last trace of the
idea finally purged by commit 2ef7d5f342c1 ("ARM, ARM64: dts: drop
"arm,amba-bus" in favor of "simple-bus"").

As such, they can simply be removed and the DMA-330 nodes fitted into
the normal sort order.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
---
 arch/arm64/boot/dts/rockchip/px30.dtsi   | 25 ++++-------
 arch/arm64/boot/dts/rockchip/rk3308.dtsi | 45 ++++++++-----------
 arch/arm64/boot/dts/rockchip/rk3328.dtsi | 29 +++++--------
 arch/arm64/boot/dts/rockchip/rk3368.dtsi | 55 +++++++++++-------------
 arch/arm64/boot/dts/rockchip/rk3399.dtsi | 51 ++++++++++------------
 5 files changed, 85 insertions(+), 120 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/px30.dtsi b/arch/arm64/boot/dts/rockchip/px30.dtsi
index 2695ea8cda14..86e1f0f26624 100644
--- a/arch/arm64/boot/dts/rockchip/px30.dtsi
+++ b/arch/arm64/boot/dts/rockchip/px30.dtsi
@@ -703,22 +703,15 @@
 		clock-names = "pclk", "timer";
 	};
 
-	amba: bus {
-		compatible = "simple-bus";
-		#address-cells = <2>;
-		#size-cells = <2>;
-		ranges;
-
-		dmac: dmac@ff240000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x0 0xff240000 0x0 0x4000>;
-			interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC>;
-			clock-names = "apb_pclk";
-			#dma-cells = <1>;
-		};
+	dmac: dmac@ff240000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x0 0xff240000 0x0 0x4000>;
+		interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC>;
+		clock-names = "apb_pclk";
+		#dma-cells = <1>;
 	};
 
 	tsadc: tsadc@ff280000 {
diff --git a/arch/arm64/boot/dts/rockchip/rk3308.dtsi b/arch/arm64/boot/dts/rockchip/rk3308.dtsi
index 2560b98771ca..fbf15c822e99 100644
--- a/arch/arm64/boot/dts/rockchip/rk3308.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3308.dtsi
@@ -513,33 +513,26 @@
 		status = "disabled";
 	};
 
-	amba: bus {
-		compatible = "simple-bus";
-		#address-cells = <2>;
-		#size-cells = <2>;
-		ranges;
+	dmac0: dma-controller@ff2c0000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x0 0xff2c0000 0x0 0x4000>;
+		interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC0>;
+		clock-names = "apb_pclk";
+		#dma-cells = <1>;
+	};
 
-		dmac0: dma-controller@ff2c0000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x0 0xff2c0000 0x0 0x4000>;
-			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC0>;
-			clock-names = "apb_pclk";
-			#dma-cells = <1>;
-		};
-
-		dmac1: dma-controller@ff2d0000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x0 0xff2d0000 0x0 0x4000>;
-			interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC1>;
-			clock-names = "apb_pclk";
-			#dma-cells = <1>;
-		};
+	dmac1: dma-controller@ff2d0000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x0 0xff2d0000 0x0 0x4000>;
+		interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC1>;
+		clock-names = "apb_pclk";
+		#dma-cells = <1>;
 	};
 
 	i2s_2ch_0: i2s@ff350000 {
diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
index db0d5c8e5f96..63b3b55c4670 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
@@ -142,24 +142,6 @@
 		};
 	};
 
-	amba: bus {
-		compatible = "simple-bus";
-		#address-cells = <2>;
-		#size-cells = <2>;
-		ranges;
-
-		dmac: dmac@ff1f0000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x0 0xff1f0000 0x0 0x4000>;
-			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC>;
-			clock-names = "apb_pclk";
-			#dma-cells = <1>;
-		};
-	};
-
 	analog_sound: analog-sound {
 		compatible = "simple-audio-card";
 		simple-audio-card,format = "i2s";
@@ -504,6 +486,17 @@
 		status = "disabled";
 	};
 
+	dmac: dmac@ff1f0000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x0 0xff1f0000 0x0 0x4000>;
+		interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC>;
+		clock-names = "apb_pclk";
+		#dma-cells = <1>;
+	};
+
 	thermal-zones {
 		soc_thermal: soc-thermal {
 			polling-delay-passive = <20>;
diff --git a/arch/arm64/boot/dts/rockchip/rk3368.dtsi b/arch/arm64/boot/dts/rockchip/rk3368.dtsi
index 3746f23dc3df..eff2039d1bcf 100644
--- a/arch/arm64/boot/dts/rockchip/rk3368.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3368.dtsi
@@ -136,37 +136,6 @@
 		};
 	};
 
-	amba: bus {
-		compatible = "simple-bus";
-		#address-cells = <2>;
-		#size-cells = <2>;
-		ranges;
-
-		dmac_peri: dma-controller@ff250000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x0 0xff250000 0x0 0x4000>;
-			interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
-			#dma-cells = <1>;
-			arm,pl330-broken-no-flushp;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC_PERI>;
-			clock-names = "apb_pclk";
-		};
-
-		dmac_bus: dma-controller@ff600000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x0 0xff600000 0x0 0x4000>;
-			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
-			#dma-cells = <1>;
-			arm,pl330-broken-no-flushp;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC_BUS>;
-			clock-names = "apb_pclk";
-		};
-	};
-
 	arm-pmu {
 		compatible = "arm,armv8-pmuv3";
 		interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>,
@@ -399,6 +368,18 @@
 		status = "disabled";
 	};
 
+	dmac_peri: dma-controller@ff250000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x0 0xff250000 0x0 0x4000>;
+		interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
+		#dma-cells = <1>;
+		arm,pl330-broken-no-flushp;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC_PERI>;
+		clock-names = "apb_pclk";
+	};
+
 	thermal-zones {
 		cpu {
 			polling-delay-passive = <100>; /* milliseconds */
@@ -532,6 +513,18 @@
 		status = "disabled";
 	};
 
+	dmac_bus: dma-controller@ff600000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x0 0xff600000 0x0 0x4000>;
+		interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
+		#dma-cells = <1>;
+		arm,pl330-broken-no-flushp;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC_BUS>;
+		clock-names = "apb_pclk";
+	};
+
 	i2c0: i2c@ff650000 {
 		compatible = "rockchip,rk3368-i2c", "rockchip,rk3288-i2c";
 		reg = <0x0 0xff650000 0x0 0x1000>;
diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index f5dee5f447bb..7dc6221450d6 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -200,35 +200,6 @@
 		#clock-cells = <0>;
 	};
 
-	amba: bus {
-		compatible = "simple-bus";
-		#address-cells = <2>;
-		#size-cells = <2>;
-		ranges;
-
-		dmac_bus: dma-controller@ff6d0000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x0 0xff6d0000 0x0 0x4000>;
-			interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH 0>,
-				     <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH 0>;
-			#dma-cells = <1>;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC0_PERILP>;
-			clock-names = "apb_pclk";
-		};
-
-		dmac_peri: dma-controller@ff6e0000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x0 0xff6e0000 0x0 0x4000>;
-			interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH 0>,
-				     <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH 0>;
-			#dma-cells = <1>;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC1_PERILP>;
-			clock-names = "apb_pclk";
-		};
-	};
-
 	pcie0: pcie@f8000000 {
 		compatible = "rockchip,rk3399-pcie";
 		reg = <0x0 0xf8000000 0x0 0x2000000>,
@@ -1351,6 +1322,28 @@
 		};
 	};
 
+	dmac_bus: dma-controller@ff6d0000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x0 0xff6d0000 0x0 0x4000>;
+		interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH 0>,
+			     <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH 0>;
+		#dma-cells = <1>;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC0_PERILP>;
+		clock-names = "apb_pclk";
+	};
+
+	dmac_peri: dma-controller@ff6e0000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x0 0xff6e0000 0x0 0x4000>;
+		interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH 0>,
+			     <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH 0>;
+		#dma-cells = <1>;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC1_PERILP>;
+		clock-names = "apb_pclk";
+	};
+
 	pmucru: pmu-clock-controller@ff750000 {
 		compatible = "rockchip,rk3399-pmucru";
 		reg = <0x0 0xff750000 0x0 0x1000>;
-- 
2.17.1


_______________________________________________
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Linux-rockchip@lists.infradead.org
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^ permalink raw reply related	[flat|nested] 6+ messages in thread
* [PATCH 1/2] arm64: dts: rockchip: Remove bogus "amba" bus nodes
@ 2021-01-20 23:42 ` Robin Murphy
  0 siblings, 0 replies; 6+ messages in thread
From: Robin Murphy @ 2021-01-20 23:42 UTC (permalink / raw)
  To: heiko; +Cc: linux-rockchip, linux-arm-kernel

The "amba" bus nodes wrapping all the DMA-330 nodes serve no useful
purpose, and certainly bear no relation at all to the actual underlying
interconnect topology. They appear to be cargo-cult copying from a
design misstep in the very early days of FDT adoption on ARM, which was
righted with the "arm,primecell" compatible, and the last trace of the
idea finally purged by commit 2ef7d5f342c1 ("ARM, ARM64: dts: drop
"arm,amba-bus" in favor of "simple-bus"").

As such, they can simply be removed and the DMA-330 nodes fitted into
the normal sort order.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
---
 arch/arm64/boot/dts/rockchip/px30.dtsi   | 25 ++++-------
 arch/arm64/boot/dts/rockchip/rk3308.dtsi | 45 ++++++++-----------
 arch/arm64/boot/dts/rockchip/rk3328.dtsi | 29 +++++--------
 arch/arm64/boot/dts/rockchip/rk3368.dtsi | 55 +++++++++++-------------
 arch/arm64/boot/dts/rockchip/rk3399.dtsi | 51 ++++++++++------------
 5 files changed, 85 insertions(+), 120 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/px30.dtsi b/arch/arm64/boot/dts/rockchip/px30.dtsi
index 2695ea8cda14..86e1f0f26624 100644
--- a/arch/arm64/boot/dts/rockchip/px30.dtsi
+++ b/arch/arm64/boot/dts/rockchip/px30.dtsi
@@ -703,22 +703,15 @@
 		clock-names = "pclk", "timer";
 	};
 
-	amba: bus {
-		compatible = "simple-bus";
-		#address-cells = <2>;
-		#size-cells = <2>;
-		ranges;
-
-		dmac: dmac@ff240000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x0 0xff240000 0x0 0x4000>;
-			interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC>;
-			clock-names = "apb_pclk";
-			#dma-cells = <1>;
-		};
+	dmac: dmac@ff240000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x0 0xff240000 0x0 0x4000>;
+		interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC>;
+		clock-names = "apb_pclk";
+		#dma-cells = <1>;
 	};
 
 	tsadc: tsadc@ff280000 {
diff --git a/arch/arm64/boot/dts/rockchip/rk3308.dtsi b/arch/arm64/boot/dts/rockchip/rk3308.dtsi
index 2560b98771ca..fbf15c822e99 100644
--- a/arch/arm64/boot/dts/rockchip/rk3308.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3308.dtsi
@@ -513,33 +513,26 @@
 		status = "disabled";
 	};
 
-	amba: bus {
-		compatible = "simple-bus";
-		#address-cells = <2>;
-		#size-cells = <2>;
-		ranges;
+	dmac0: dma-controller@ff2c0000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x0 0xff2c0000 0x0 0x4000>;
+		interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC0>;
+		clock-names = "apb_pclk";
+		#dma-cells = <1>;
+	};
 
-		dmac0: dma-controller@ff2c0000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x0 0xff2c0000 0x0 0x4000>;
-			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC0>;
-			clock-names = "apb_pclk";
-			#dma-cells = <1>;
-		};
-
-		dmac1: dma-controller@ff2d0000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x0 0xff2d0000 0x0 0x4000>;
-			interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC1>;
-			clock-names = "apb_pclk";
-			#dma-cells = <1>;
-		};
+	dmac1: dma-controller@ff2d0000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x0 0xff2d0000 0x0 0x4000>;
+		interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC1>;
+		clock-names = "apb_pclk";
+		#dma-cells = <1>;
 	};
 
 	i2s_2ch_0: i2s@ff350000 {
diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
index db0d5c8e5f96..63b3b55c4670 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
@@ -142,24 +142,6 @@
 		};
 	};
 
-	amba: bus {
-		compatible = "simple-bus";
-		#address-cells = <2>;
-		#size-cells = <2>;
-		ranges;
-
-		dmac: dmac@ff1f0000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x0 0xff1f0000 0x0 0x4000>;
-			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC>;
-			clock-names = "apb_pclk";
-			#dma-cells = <1>;
-		};
-	};
-
 	analog_sound: analog-sound {
 		compatible = "simple-audio-card";
 		simple-audio-card,format = "i2s";
@@ -504,6 +486,17 @@
 		status = "disabled";
 	};
 
+	dmac: dmac@ff1f0000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x0 0xff1f0000 0x0 0x4000>;
+		interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC>;
+		clock-names = "apb_pclk";
+		#dma-cells = <1>;
+	};
+
 	thermal-zones {
 		soc_thermal: soc-thermal {
 			polling-delay-passive = <20>;
diff --git a/arch/arm64/boot/dts/rockchip/rk3368.dtsi b/arch/arm64/boot/dts/rockchip/rk3368.dtsi
index 3746f23dc3df..eff2039d1bcf 100644
--- a/arch/arm64/boot/dts/rockchip/rk3368.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3368.dtsi
@@ -136,37 +136,6 @@
 		};
 	};
 
-	amba: bus {
-		compatible = "simple-bus";
-		#address-cells = <2>;
-		#size-cells = <2>;
-		ranges;
-
-		dmac_peri: dma-controller@ff250000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x0 0xff250000 0x0 0x4000>;
-			interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
-			#dma-cells = <1>;
-			arm,pl330-broken-no-flushp;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC_PERI>;
-			clock-names = "apb_pclk";
-		};
-
-		dmac_bus: dma-controller@ff600000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x0 0xff600000 0x0 0x4000>;
-			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
-			#dma-cells = <1>;
-			arm,pl330-broken-no-flushp;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC_BUS>;
-			clock-names = "apb_pclk";
-		};
-	};
-
 	arm-pmu {
 		compatible = "arm,armv8-pmuv3";
 		interrupts = <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>,
@@ -399,6 +368,18 @@
 		status = "disabled";
 	};
 
+	dmac_peri: dma-controller@ff250000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x0 0xff250000 0x0 0x4000>;
+		interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
+		#dma-cells = <1>;
+		arm,pl330-broken-no-flushp;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC_PERI>;
+		clock-names = "apb_pclk";
+	};
+
 	thermal-zones {
 		cpu {
 			polling-delay-passive = <100>; /* milliseconds */
@@ -532,6 +513,18 @@
 		status = "disabled";
 	};
 
+	dmac_bus: dma-controller@ff600000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x0 0xff600000 0x0 0x4000>;
+		interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
+		#dma-cells = <1>;
+		arm,pl330-broken-no-flushp;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC_BUS>;
+		clock-names = "apb_pclk";
+	};
+
 	i2c0: i2c@ff650000 {
 		compatible = "rockchip,rk3368-i2c", "rockchip,rk3288-i2c";
 		reg = <0x0 0xff650000 0x0 0x1000>;
diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index f5dee5f447bb..7dc6221450d6 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -200,35 +200,6 @@
 		#clock-cells = <0>;
 	};
 
-	amba: bus {
-		compatible = "simple-bus";
-		#address-cells = <2>;
-		#size-cells = <2>;
-		ranges;
-
-		dmac_bus: dma-controller@ff6d0000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x0 0xff6d0000 0x0 0x4000>;
-			interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH 0>,
-				     <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH 0>;
-			#dma-cells = <1>;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC0_PERILP>;
-			clock-names = "apb_pclk";
-		};
-
-		dmac_peri: dma-controller@ff6e0000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x0 0xff6e0000 0x0 0x4000>;
-			interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH 0>,
-				     <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH 0>;
-			#dma-cells = <1>;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC1_PERILP>;
-			clock-names = "apb_pclk";
-		};
-	};
-
 	pcie0: pcie@f8000000 {
 		compatible = "rockchip,rk3399-pcie";
 		reg = <0x0 0xf8000000 0x0 0x2000000>,
@@ -1351,6 +1322,28 @@
 		};
 	};
 
+	dmac_bus: dma-controller@ff6d0000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x0 0xff6d0000 0x0 0x4000>;
+		interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH 0>,
+			     <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH 0>;
+		#dma-cells = <1>;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC0_PERILP>;
+		clock-names = "apb_pclk";
+	};
+
+	dmac_peri: dma-controller@ff6e0000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x0 0xff6e0000 0x0 0x4000>;
+		interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH 0>,
+			     <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH 0>;
+		#dma-cells = <1>;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC1_PERILP>;
+		clock-names = "apb_pclk";
+	};
+
 	pmucru: pmu-clock-controller@ff750000 {
 		compatible = "rockchip,rk3399-pmucru";
 		reg = <0x0 0xff750000 0x0 0x1000>;
-- 
2.17.1


_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply related	[flat|nested] 6+ messages in thread
* [PATCH 2/2] ARM: dts: rockchip: Remove bogus "amba" bus nodes
  2021-01-20 23:42 ` Robin Murphy
@ 2021-01-20 23:42   ` Robin Murphy
  -1 siblings, 0 replies; 6+ messages in thread
From: Robin Murphy @ 2021-01-20 23:42 UTC (permalink / raw)
  To: heiko; +Cc: linux-rockchip, linux-arm-kernel

The "amba" bus nodes wrapping all the DMA-330 nodes serve no useful
purpose, and certainly bear no relation at all to the actual underlying
interconnect topology. They appear to be cargo-cult copying from a
design misstep in the very early days of FDT adoption on ARM, which was
righted with the "arm,primecell" compatible, and the last trace of the
idea finally purged by commit 2ef7d5f342c1 ("ARM, ARM64: dts: drop
"arm,amba-bus" in favor of "simple-bus"").

As such, they can simply be removed and the DMA-330 nodes fitted into
the normal sort order.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
---
 arch/arm/boot/dts/rk3036.dtsi | 31 ++++++--------
 arch/arm/boot/dts/rk322x.dtsi | 29 +++++--------
 arch/arm/boot/dts/rk3288.dtsi | 81 ++++++++++++++++-------------------
 arch/arm/boot/dts/rk3xxx.dtsi | 81 ++++++++++++++++-------------------
 4 files changed, 97 insertions(+), 125 deletions(-)

diff --git a/arch/arm/boot/dts/rk3036.dtsi b/arch/arm/boot/dts/rk3036.dtsi
index 093567022386..0c83f178adb9 100644
--- a/arch/arm/boot/dts/rk3036.dtsi
+++ b/arch/arm/boot/dts/rk3036.dtsi
@@ -54,25 +54,6 @@
 		};
 	};
 
-	amba: bus {
-		compatible = "simple-bus";
-		#address-cells = <1>;
-		#size-cells = <1>;
-		ranges;
-
-		pdma: pdma@20078000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x20078000 0x4000>;
-			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
-			#dma-cells = <1>;
-			arm,pl330-broken-no-flushp;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC2>;
-			clock-names = "apb_pclk";
-		};
-	};
-
 	arm-pmu {
 		compatible = "arm,cortex-a7-pmu";
 		interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>,
@@ -494,6 +475,18 @@
 		status = "disabled";
 	};
 
+	pdma: pdma@20078000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x20078000 0x4000>;
+		interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
+		#dma-cells = <1>;
+		arm,pl330-broken-no-flushp;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC2>;
+		clock-names = "apb_pclk";
+	};
+
 	pinctrl: pinctrl {
 		compatible = "rockchip,rk3036-pinctrl";
 		rockchip,grf = <&grf>;
diff --git a/arch/arm/boot/dts/rk322x.dtsi b/arch/arm/boot/dts/rk322x.dtsi
index 48e6e8d44a1a..4d003afd0e3e 100644
--- a/arch/arm/boot/dts/rk322x.dtsi
+++ b/arch/arm/boot/dts/rk322x.dtsi
@@ -95,24 +95,6 @@
 		};
 	};
 
-	amba: bus {
-		compatible = "simple-bus";
-		#address-cells = <1>;
-		#size-cells = <1>;
-		ranges;
-
-		pdma: pdma@110f0000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x110f0000 0x4000>;
-			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
-			#dma-cells = <1>;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC>;
-			clock-names = "apb_pclk";
-		};
-	};
-
 	arm-pmu {
 		compatible = "arm,cortex-a7-pmu";
 		interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>,
@@ -464,6 +446,17 @@
 			<75000000>;
 	};
 
+	pdma: pdma@110f0000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x110f0000 0x4000>;
+		interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
+		#dma-cells = <1>;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC>;
+		clock-names = "apb_pclk";
+	};
+
 	thermal-zones {
 		cpu_thermal: cpu-thermal {
 			polling-delay-passive = <100>; /* milliseconds */
diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index 68d5a58cfe88..85ec376cd1b1 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -154,50 +154,6 @@
 		};
 	};
 
-	amba: bus {
-		compatible = "simple-bus";
-		#address-cells = <2>;
-		#size-cells = <2>;
-		ranges;
-
-		dmac_peri: dma-controller@ff250000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x0 0xff250000 0x0 0x4000>;
-			interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
-			#dma-cells = <1>;
-			arm,pl330-broken-no-flushp;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC2>;
-			clock-names = "apb_pclk";
-		};
-
-		dmac_bus_ns: dma-controller@ff600000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x0 0xff600000 0x0 0x4000>;
-			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
-			#dma-cells = <1>;
-			arm,pl330-broken-no-flushp;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC1>;
-			clock-names = "apb_pclk";
-			status = "disabled";
-		};
-
-		dmac_bus_s: dma-controller@ffb20000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x0 0xffb20000 0x0 0x4000>;
-			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
-			#dma-cells = <1>;
-			arm,pl330-broken-no-flushp;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC1>;
-			clock-names = "apb_pclk";
-		};
-	};
-
 	reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
@@ -487,6 +443,18 @@
 		status = "disabled";
 	};
 
+	dmac_peri: dma-controller@ff250000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x0 0xff250000 0x0 0x4000>;
+		interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
+		#dma-cells = <1>;
+		arm,pl330-broken-no-flushp;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC2>;
+		clock-names = "apb_pclk";
+	};
+
 	thermal-zones {
 		reserve_thermal: reserve_thermal {
 			polling-delay-passive = <1000>; /* milliseconds */
@@ -665,6 +633,19 @@
 		status = "disabled";
 	};
 
+	dmac_bus_ns: dma-controller@ff600000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x0 0xff600000 0x0 0x4000>;
+		interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
+		#dma-cells = <1>;
+		arm,pl330-broken-no-flushp;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC1>;
+		clock-names = "apb_pclk";
+		status = "disabled";
+	};
+
 	i2c0: i2c@ff650000 {
 		compatible = "rockchip,rk3288-i2c";
 		reg = <0x0 0xff650000 0x0 0x1000>;
@@ -1398,6 +1379,18 @@
 		reg = <0x0 0xffaf0080 0x0 0x20>;
 	};
 
+	dmac_bus_s: dma-controller@ffb20000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x0 0xffb20000 0x0 0x4000>;
+		interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
+		#dma-cells = <1>;
+		arm,pl330-broken-no-flushp;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC1>;
+		clock-names = "apb_pclk";
+	};
+
 	efuse: efuse@ffb40000 {
 		compatible = "rockchip,rk3288-efuse";
 		reg = <0x0 0xffb40000 0x0 0x20>;
diff --git a/arch/arm/boot/dts/rk3xxx.dtsi b/arch/arm/boot/dts/rk3xxx.dtsi
index 859a7477909f..f8886c0b247a 100644
--- a/arch/arm/boot/dts/rk3xxx.dtsi
+++ b/arch/arm/boot/dts/rk3xxx.dtsi
@@ -32,50 +32,6 @@
 		spi1 = &spi1;
 	};
 
-	amba: bus {
-		compatible = "simple-bus";
-		#address-cells = <1>;
-		#size-cells = <1>;
-		ranges;
-
-		dmac1_s: dma-controller@20018000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x20018000 0x4000>;
-			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
-			#dma-cells = <1>;
-			arm,pl330-broken-no-flushp;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMA1>;
-			clock-names = "apb_pclk";
-		};
-
-		dmac1_ns: dma-controller@2001c000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x2001c000 0x4000>;
-			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
-			#dma-cells = <1>;
-			arm,pl330-broken-no-flushp;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMA1>;
-			clock-names = "apb_pclk";
-			status = "disabled";
-		};
-
-		dmac2: dma-controller@20078000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x20078000 0x4000>;
-			interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
-			#dma-cells = <1>;
-			arm,pl330-broken-no-flushp;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMA2>;
-			clock-names = "apb_pclk";
-		};
-	};
-
 	xin24m: oscillator {
 		compatible = "fixed-clock";
 		clock-frequency = <24000000>;
@@ -295,6 +251,31 @@
 		reg = <0x20008000 0x200>;
 	};
 
+	dmac1_s: dma-controller@20018000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x20018000 0x4000>;
+		interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
+		#dma-cells = <1>;
+		arm,pl330-broken-no-flushp;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMA1>;
+		clock-names = "apb_pclk";
+	};
+
+	dmac1_ns: dma-controller@2001c000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x2001c000 0x4000>;
+		interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
+		#dma-cells = <1>;
+		arm,pl330-broken-no-flushp;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMA1>;
+		clock-names = "apb_pclk";
+		status = "disabled";
+	};
+
 	i2c0: i2c@2002d000 {
 		compatible = "rockchip,rk3066-i2c";
 		reg = <0x2002d000 0x1000>;
@@ -469,4 +450,16 @@
 		dma-names = "tx", "rx";
 		status = "disabled";
 	};
+
+	dmac2: dma-controller@20078000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x20078000 0x4000>;
+		interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
+		#dma-cells = <1>;
+		arm,pl330-broken-no-flushp;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMA2>;
+		clock-names = "apb_pclk";
+	};
 };
-- 
2.17.1


_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

^ permalink raw reply related	[flat|nested] 6+ messages in thread
* [PATCH 2/2] ARM: dts: rockchip: Remove bogus "amba" bus nodes
@ 2021-01-20 23:42   ` Robin Murphy
  0 siblings, 0 replies; 6+ messages in thread
From: Robin Murphy @ 2021-01-20 23:42 UTC (permalink / raw)
  To: heiko; +Cc: linux-rockchip, linux-arm-kernel

The "amba" bus nodes wrapping all the DMA-330 nodes serve no useful
purpose, and certainly bear no relation at all to the actual underlying
interconnect topology. They appear to be cargo-cult copying from a
design misstep in the very early days of FDT adoption on ARM, which was
righted with the "arm,primecell" compatible, and the last trace of the
idea finally purged by commit 2ef7d5f342c1 ("ARM, ARM64: dts: drop
"arm,amba-bus" in favor of "simple-bus"").

As such, they can simply be removed and the DMA-330 nodes fitted into
the normal sort order.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
---
 arch/arm/boot/dts/rk3036.dtsi | 31 ++++++--------
 arch/arm/boot/dts/rk322x.dtsi | 29 +++++--------
 arch/arm/boot/dts/rk3288.dtsi | 81 ++++++++++++++++-------------------
 arch/arm/boot/dts/rk3xxx.dtsi | 81 ++++++++++++++++-------------------
 4 files changed, 97 insertions(+), 125 deletions(-)

diff --git a/arch/arm/boot/dts/rk3036.dtsi b/arch/arm/boot/dts/rk3036.dtsi
index 093567022386..0c83f178adb9 100644
--- a/arch/arm/boot/dts/rk3036.dtsi
+++ b/arch/arm/boot/dts/rk3036.dtsi
@@ -54,25 +54,6 @@
 		};
 	};
 
-	amba: bus {
-		compatible = "simple-bus";
-		#address-cells = <1>;
-		#size-cells = <1>;
-		ranges;
-
-		pdma: pdma@20078000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x20078000 0x4000>;
-			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
-			#dma-cells = <1>;
-			arm,pl330-broken-no-flushp;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC2>;
-			clock-names = "apb_pclk";
-		};
-	};
-
 	arm-pmu {
 		compatible = "arm,cortex-a7-pmu";
 		interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>,
@@ -494,6 +475,18 @@
 		status = "disabled";
 	};
 
+	pdma: pdma@20078000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x20078000 0x4000>;
+		interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
+		#dma-cells = <1>;
+		arm,pl330-broken-no-flushp;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC2>;
+		clock-names = "apb_pclk";
+	};
+
 	pinctrl: pinctrl {
 		compatible = "rockchip,rk3036-pinctrl";
 		rockchip,grf = <&grf>;
diff --git a/arch/arm/boot/dts/rk322x.dtsi b/arch/arm/boot/dts/rk322x.dtsi
index 48e6e8d44a1a..4d003afd0e3e 100644
--- a/arch/arm/boot/dts/rk322x.dtsi
+++ b/arch/arm/boot/dts/rk322x.dtsi
@@ -95,24 +95,6 @@
 		};
 	};
 
-	amba: bus {
-		compatible = "simple-bus";
-		#address-cells = <1>;
-		#size-cells = <1>;
-		ranges;
-
-		pdma: pdma@110f0000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x110f0000 0x4000>;
-			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
-			#dma-cells = <1>;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC>;
-			clock-names = "apb_pclk";
-		};
-	};
-
 	arm-pmu {
 		compatible = "arm,cortex-a7-pmu";
 		interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>,
@@ -464,6 +446,17 @@
 			<75000000>;
 	};
 
+	pdma: pdma@110f0000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x110f0000 0x4000>;
+		interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
+		#dma-cells = <1>;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC>;
+		clock-names = "apb_pclk";
+	};
+
 	thermal-zones {
 		cpu_thermal: cpu-thermal {
 			polling-delay-passive = <100>; /* milliseconds */
diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi
index 68d5a58cfe88..85ec376cd1b1 100644
--- a/arch/arm/boot/dts/rk3288.dtsi
+++ b/arch/arm/boot/dts/rk3288.dtsi
@@ -154,50 +154,6 @@
 		};
 	};
 
-	amba: bus {
-		compatible = "simple-bus";
-		#address-cells = <2>;
-		#size-cells = <2>;
-		ranges;
-
-		dmac_peri: dma-controller@ff250000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x0 0xff250000 0x0 0x4000>;
-			interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
-			#dma-cells = <1>;
-			arm,pl330-broken-no-flushp;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC2>;
-			clock-names = "apb_pclk";
-		};
-
-		dmac_bus_ns: dma-controller@ff600000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x0 0xff600000 0x0 0x4000>;
-			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
-			#dma-cells = <1>;
-			arm,pl330-broken-no-flushp;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC1>;
-			clock-names = "apb_pclk";
-			status = "disabled";
-		};
-
-		dmac_bus_s: dma-controller@ffb20000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x0 0xffb20000 0x0 0x4000>;
-			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
-			#dma-cells = <1>;
-			arm,pl330-broken-no-flushp;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMAC1>;
-			clock-names = "apb_pclk";
-		};
-	};
-
 	reserved-memory {
 		#address-cells = <2>;
 		#size-cells = <2>;
@@ -487,6 +443,18 @@
 		status = "disabled";
 	};
 
+	dmac_peri: dma-controller@ff250000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x0 0xff250000 0x0 0x4000>;
+		interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
+		#dma-cells = <1>;
+		arm,pl330-broken-no-flushp;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC2>;
+		clock-names = "apb_pclk";
+	};
+
 	thermal-zones {
 		reserve_thermal: reserve_thermal {
 			polling-delay-passive = <1000>; /* milliseconds */
@@ -665,6 +633,19 @@
 		status = "disabled";
 	};
 
+	dmac_bus_ns: dma-controller@ff600000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x0 0xff600000 0x0 0x4000>;
+		interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
+		#dma-cells = <1>;
+		arm,pl330-broken-no-flushp;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC1>;
+		clock-names = "apb_pclk";
+		status = "disabled";
+	};
+
 	i2c0: i2c@ff650000 {
 		compatible = "rockchip,rk3288-i2c";
 		reg = <0x0 0xff650000 0x0 0x1000>;
@@ -1398,6 +1379,18 @@
 		reg = <0x0 0xffaf0080 0x0 0x20>;
 	};
 
+	dmac_bus_s: dma-controller@ffb20000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x0 0xffb20000 0x0 0x4000>;
+		interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
+		#dma-cells = <1>;
+		arm,pl330-broken-no-flushp;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMAC1>;
+		clock-names = "apb_pclk";
+	};
+
 	efuse: efuse@ffb40000 {
 		compatible = "rockchip,rk3288-efuse";
 		reg = <0x0 0xffb40000 0x0 0x20>;
diff --git a/arch/arm/boot/dts/rk3xxx.dtsi b/arch/arm/boot/dts/rk3xxx.dtsi
index 859a7477909f..f8886c0b247a 100644
--- a/arch/arm/boot/dts/rk3xxx.dtsi
+++ b/arch/arm/boot/dts/rk3xxx.dtsi
@@ -32,50 +32,6 @@
 		spi1 = &spi1;
 	};
 
-	amba: bus {
-		compatible = "simple-bus";
-		#address-cells = <1>;
-		#size-cells = <1>;
-		ranges;
-
-		dmac1_s: dma-controller@20018000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x20018000 0x4000>;
-			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
-			#dma-cells = <1>;
-			arm,pl330-broken-no-flushp;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMA1>;
-			clock-names = "apb_pclk";
-		};
-
-		dmac1_ns: dma-controller@2001c000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x2001c000 0x4000>;
-			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
-			#dma-cells = <1>;
-			arm,pl330-broken-no-flushp;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMA1>;
-			clock-names = "apb_pclk";
-			status = "disabled";
-		};
-
-		dmac2: dma-controller@20078000 {
-			compatible = "arm,pl330", "arm,primecell";
-			reg = <0x20078000 0x4000>;
-			interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
-				     <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
-			#dma-cells = <1>;
-			arm,pl330-broken-no-flushp;
-			arm,pl330-periph-burst;
-			clocks = <&cru ACLK_DMA2>;
-			clock-names = "apb_pclk";
-		};
-	};
-
 	xin24m: oscillator {
 		compatible = "fixed-clock";
 		clock-frequency = <24000000>;
@@ -295,6 +251,31 @@
 		reg = <0x20008000 0x200>;
 	};
 
+	dmac1_s: dma-controller@20018000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x20018000 0x4000>;
+		interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
+		#dma-cells = <1>;
+		arm,pl330-broken-no-flushp;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMA1>;
+		clock-names = "apb_pclk";
+	};
+
+	dmac1_ns: dma-controller@2001c000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x2001c000 0x4000>;
+		interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
+		#dma-cells = <1>;
+		arm,pl330-broken-no-flushp;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMA1>;
+		clock-names = "apb_pclk";
+		status = "disabled";
+	};
+
 	i2c0: i2c@2002d000 {
 		compatible = "rockchip,rk3066-i2c";
 		reg = <0x2002d000 0x1000>;
@@ -469,4 +450,16 @@
 		dma-names = "tx", "rx";
 		status = "disabled";
 	};
+
+	dmac2: dma-controller@20078000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x20078000 0x4000>;
+		interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
+		#dma-cells = <1>;
+		arm,pl330-broken-no-flushp;
+		arm,pl330-periph-burst;
+		clocks = <&cru ACLK_DMA2>;
+		clock-names = "apb_pclk";
+	};
 };
-- 
2.17.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply related	[flat|nested] 6+ messages in thread
* Re: (subset) [PATCH 1/2] arm64: dts: rockchip: Remove bogus "amba" bus nodes
  2021-01-20 23:42 ` Robin Murphy
@ 2021-01-25 23:56   ` Heiko Stuebner
  -1 siblings, 0 replies; 6+ messages in thread
From: Heiko Stuebner @ 2021-01-25 23:56 UTC (permalink / raw)
  To: Robin Murphy; +Cc: linux-rockchip, Heiko Stuebner, linux-arm-kernel

On Wed, 20 Jan 2021 23:42:21 +0000, Robin Murphy wrote:
> The "amba" bus nodes wrapping all the DMA-330 nodes serve no useful
> purpose, and certainly bear no relation at all to the actual underlying
> interconnect topology. They appear to be cargo-cult copying from a
> design misstep in the very early days of FDT adoption on ARM, which was
> righted with the "arm,primecell" compatible, and the last trace of the
> idea finally purged by commit 2ef7d5f342c1 ("ARM, ARM64: dts: drop
> "arm,amba-bus" in favor of "simple-bus"").
> 
> [...]

Applied, thanks!

[2/2] ARM: dts: rockchip: Remove bogus "amba" bus nodes
      commit: 5eae5696eed5cc460867521c3c67db9ab62e1a0d

Patch 1/2 applied as well, b4 just didn't handle the separate
branches well.


Best regards,
-- 
Heiko Stuebner <heiko@sntech.de>

_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip

^ permalink raw reply	[flat|nested] 6+ messages in thread
* Re: (subset) [PATCH 1/2] arm64: dts: rockchip: Remove bogus "amba" bus nodes
@ 2021-01-25 23:56   ` Heiko Stuebner
  0 siblings, 0 replies; 6+ messages in thread
From: Heiko Stuebner @ 2021-01-25 23:56 UTC (permalink / raw)
  To: Robin Murphy; +Cc: linux-rockchip, Heiko Stuebner, linux-arm-kernel

On Wed, 20 Jan 2021 23:42:21 +0000, Robin Murphy wrote:
> The "amba" bus nodes wrapping all the DMA-330 nodes serve no useful
> purpose, and certainly bear no relation at all to the actual underlying
> interconnect topology. They appear to be cargo-cult copying from a
> design misstep in the very early days of FDT adoption on ARM, which was
> righted with the "arm,primecell" compatible, and the last trace of the
> idea finally purged by commit 2ef7d5f342c1 ("ARM, ARM64: dts: drop
> "arm,amba-bus" in favor of "simple-bus"").
> 
> [...]

Applied, thanks!

[2/2] ARM: dts: rockchip: Remove bogus "amba" bus nodes
      commit: 5eae5696eed5cc460867521c3c67db9ab62e1a0d

Patch 1/2 applied as well, b4 just didn't handle the separate
branches well.


Best regards,
-- 
Heiko Stuebner <heiko@sntech.de>

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 6+ messages in thread
end of thread, other threads:[~2021-01-25 23:59 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-01-20 23:42 [PATCH 1/2] arm64: dts: rockchip: Remove bogus "amba" bus nodes Robin Murphy
2021-01-20 23:42 ` Robin Murphy
2021-01-20 23:42 ` [PATCH 2/2] ARM: " Robin Murphy
2021-01-20 23:42   ` Robin Murphy
2021-01-25 23:56 ` (subset) [PATCH 1/2] arm64: " Heiko Stuebner
2021-01-25 23:56   ` Heiko Stuebner

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