ARM: mstar: msc313 bdma driver

linux-chenxing · Jul 19, 2021 · 6d6f48bcd3ec1e7fdc903a8a093da960b7b328b8 · 6d6f48b
1 parent 7adaa41
commit 6d6f48bcd3ec1e7fdc903a8a093da960b7b328b8
Show file tree

Hide file tree

Showing 10 changed files with 618 additions and 0 deletions.
diff --git a/arch/arm/boot/dts/mstar-infinity2m.dtsi b/arch/arm/boot/dts/mstar-infinity2m.dtsi
@@ -106,3 +106,13 @@
 		status = "disabled";
 	};
 };
+
+&bdma {
+	reg = <0x200400 0x100>;
+	interrupt-parent = <&intc_irq>;
+	interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>,
+		     <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>,
+		     <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>,
+		     <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>;
+	dma-channels = <4>;
+};
diff --git a/arch/arm/boot/dts/mstar-infinity5.dtsi b/arch/arm/boot/dts/mstar-infinity5.dtsi
@@ -8,3 +8,10 @@
 
 / {
 };
+
+&bdma {
+	interrupts = <40 IRQ_TYPE_LEVEL_HIGH>,
+		     <41 IRQ_TYPE_LEVEL_HIGH>,
+		     <9 IRQ_TYPE_LEVEL_HIGH>,
+		     <10 IRQ_TYPE_LEVEL_HIGH>;
+};
diff --git a/arch/arm/boot/dts/mstar-infinity6.dtsi b/arch/arm/boot/dts/mstar-infinity6.dtsi
@@ -8,3 +8,10 @@
 
 / {
 };
+
+&bdma {
+	interrupts = <40 IRQ_TYPE_LEVEL_HIGH>,
+		     <41 IRQ_TYPE_LEVEL_HIGH>,
+		     <61 IRQ_TYPE_LEVEL_HIGH>,
+		     <62 IRQ_TYPE_LEVEL_HIGH>;
+};
diff --git a/arch/arm/boot/dts/mstar-v7.dtsi b/arch/arm/boot/dts/mstar-v7.dtsi
@@ -567,6 +567,18 @@
 				};
 			};
 
+			bdma: bdma@200400 {
+				compatible = "mstar,msc313-bdma";
+				reg = <0x200400 0x80>;
+				interrupt-parent = <&intc_irq>;
+				interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>,
+					     <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&clkgen MSC313_CLKGEN_DEGLITCHES MSC313_CLKGEN_BDMA 0>;
+				dma-channels = <2>;
+				status = "okay";
+				#dma-cells = <1>;
+			};
+
 			l3bridge: l3bridge@204400 {
 				compatible = "mstar,l3bridge";
 				reg = <0x204400 0x200>;

diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
@@ -734,6 +734,8 @@ source "drivers/dma/fsl-dpaa2-qdma/Kconfig"
 
 source "drivers/dma/lgm/Kconfig"
 
+source "drivers/dma/mstar/Kconfig"
+
 # clients
 comment "DMA Clients"
 	depends on DMA_ENGINE

diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile
@@ -85,3 +85,4 @@ obj-y += mediatek/
 obj-y += qcom/
 obj-y += ti/
 obj-y += xilinx/
+obj-y += mstar/
diff --git a/drivers/dma/mstar/Kconfig b/drivers/dma/mstar/Kconfig
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+config MSTAR_MSC313_BDMA
+	tristate "MStar MSC313 BDMA support"
+	depends on ARCH_MSTARV7 || COMPILE_TEST
+	select DMA_ENGINE
+
diff --git a/drivers/dma/mstar/Makefile b/drivers/dma/mstar/Makefile
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+obj-$(CONFIG_MSTAR_MSC313_BDMA) += mstar-msc313-bdma.o