powerpc/4xx: Adding PCIe MSI support

This patch adds MSI support for 440SPe, 460Ex, 460Sx and 405Ex. Signed-off-by: Rupjyoti Sarmah <rsarmah@apm.com> Signed-off-by: Tirumala R Marri <tmarri@apm.com> Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
git-mirror · May 26, 2011 · 3fb7933 · 3fb7933
1 parent 4dd6029
commit 3fb7933
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diff --git a/arch/powerpc/boot/dts/canyonlands.dts b/arch/powerpc/boot/dts/canyonlands.dts
@@ -530,5 +530,23 @@
 				0x0 0x0 0x0 0x3 &UIC3 0x12 0x4 /* swizzled int C */
 				0x0 0x0 0x0 0x4 &UIC3 0x13 0x4 /* swizzled int D */>;
 		};
+
+		MSI: ppc4xx-msi@C10000000 {
+			compatible = "amcc,ppc4xx-msi", "ppc4xx-msi";
+			reg = < 0xC 0x10000000 0x100>;
+			sdr-base = <0x36C>;
+			msi-data = <0x00000000>;
+			msi-mask = <0x44440000>;
+			interrupt-count = <3>;
+			interrupts = <0 1 2 3>;
+			interrupt-parent = <&UIC3>;
+			#interrupt-cells = <1>;
+			#address-cells = <0>;
+			#size-cells = <0>;
+			interrupt-map = <0 &UIC3 0x18 1
+					1 &UIC3 0x19 1
+					2 &UIC3 0x1A 1
+					3 &UIC3 0x1B 1>;
+		};
 	};
 };
diff --git a/arch/powerpc/boot/dts/katmai.dts b/arch/powerpc/boot/dts/katmai.dts
@@ -442,6 +442,24 @@
 				0x0 0x0 0x0 0x4 &UIC3 0xb 0x4 /* swizzled int D */>;
 		};
 
+		MSI: ppc4xx-msi@400300000 {
+				compatible = "amcc,ppc4xx-msi", "ppc4xx-msi";
+				reg = < 0x4 0x00300000 0x100>;
+				sdr-base = <0x3B0>;
+				msi-data = <0x00000000>;
+				msi-mask = <0x44440000>;
+				interrupt-count = <3>;
+				interrupts =<0 1 2 3>;
+				interrupt-parent = <&UIC0>;
+				#interrupt-cells = <1>;
+				#address-cells = <0>;
+				#size-cells = <0>;
+				interrupt-map = <0 &UIC0 0xC 1
+					1 &UIC0 0x0D 1
+					2 &UIC0 0x0E 1
+					3 &UIC0 0x0F 1>;
+		};
+
 		I2O: i2o@400100000 {
 			compatible = "ibm,i2o-440spe";
 			reg = <0x00000004 0x00100000 0x100>;

diff --git a/arch/powerpc/boot/dts/kilauea.dts b/arch/powerpc/boot/dts/kilauea.dts
@@ -403,5 +403,33 @@
 				0x0 0x0 0x0 0x3 &UIC2 0xd 0x4 /* swizzled int C */
 				0x0 0x0 0x0 0x4 &UIC2 0xe 0x4 /* swizzled int D */>;
 		};
+
+		MSI: ppc4xx-msi@C10000000 {
+			compatible = "amcc,ppc4xx-msi", "ppc4xx-msi";
+			reg = < 0x0 0xEF620000 0x100>;
+			sdr-base = <0x4B0>;
+			msi-data = <0x00000000>;
+			msi-mask = <0x44440000>;
+			interrupt-count = <12>;
+			interrupts = <0 1 2 3 4 5 6 7 8 9 0xA 0xB 0xC 0xD>;
+			interrupt-parent = <&UIC2>;
+			#interrupt-cells = <1>;
+			#address-cells = <0>;
+			#size-cells = <0>;
+			interrupt-map = <0 &UIC2 0x10 1
+					1 &UIC2 0x11 1
+					2 &UIC2 0x12 1
+					2 &UIC2 0x13 1
+					2 &UIC2 0x14 1
+					2 &UIC2 0x15 1
+					2 &UIC2 0x16 1
+					2 &UIC2 0x17 1
+					2 &UIC2 0x18 1
+					2 &UIC2 0x19 1
+					2 &UIC2 0x1A 1
+					2 &UIC2 0x1B 1
+					2 &UIC2 0x1C 1
+					3 &UIC2 0x1D 1>;
+		};
 	};
 };
diff --git a/arch/powerpc/boot/dts/redwood.dts b/arch/powerpc/boot/dts/redwood.dts
@@ -358,8 +358,28 @@
 				0x0 0x0 0x0 0x4 &UIC3 0xb 0x4 /* swizzled int D */>;
 		};
 
+		MSI: ppc4xx-msi@400300000 {
+				compatible = "amcc,ppc4xx-msi", "ppc4xx-msi";
+				reg = < 0x4 0x00300000 0x100
+					0x4 0x00300000 0x100>;
+				sdr-base = <0x3B0>;
+				msi-data = <0x00000000>;
+				msi-mask = <0x44440000>;
+				interrupt-count = <3>;
+				interrupts =<0 1 2 3>;
+				interrupt-parent = <&UIC0>;
+				#interrupt-cells = <1>;
+				#address-cells = <0>;
+				#size-cells = <0>;
+				interrupt-map = <0 &UIC0 0xC 1
+					1 &UIC0 0x0D 1
+					2 &UIC0 0x0E 1
+					3 &UIC0 0x0F 1>;
+		};
+
 	};
 
+
 	chosen {
 		linux,stdout-path = "/plb/opb/serial@ef600200";
 	};

diff --git a/arch/powerpc/platforms/40x/Kconfig b/arch/powerpc/platforms/40x/Kconfig
@@ -57,6 +57,8 @@ config KILAUEA
 	select 405EX
 	select PPC40x_SIMPLE
 	select PPC4xx_PCI_EXPRESS
+	select PCI_MSI
+	select PPC4xx_MSI
 	help
 	  This option enables support for the AMCC PPC405EX evaluation board.
 

diff --git a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig
@@ -74,6 +74,8 @@ config KATMAI
 	select 440SPe
 	select PCI
 	select PPC4xx_PCI_EXPRESS
+	select PCI_MSI
+	select PCC4xx_MSI
 	help
 	  This option enables support for the AMCC PPC440SPe evaluation board.
 
@@ -118,6 +120,8 @@ config CANYONLANDS
 	select 460EX
 	select PCI
 	select PPC4xx_PCI_EXPRESS
+	select PCI_MSI
+	select PPC4xx_MSI
 	select IBM_NEW_EMAC_RGMII
 	select IBM_NEW_EMAC_ZMII
 	help
@@ -144,6 +148,8 @@ config REDWOOD
 	select 460SX
 	select PCI
 	select PPC4xx_PCI_EXPRESS
+	select PCI_MSI
+	select PPC4xx_MSI
 	help
 	  This option enables support for the AMCC PPC460SX Redwood board.
 

diff --git a/arch/powerpc/sysdev/Kconfig b/arch/powerpc/sysdev/Kconfig
@@ -7,11 +7,18 @@ config PPC4xx_PCI_EXPRESS
 	depends on PCI && 4xx
 	default n
 
+config PPC4xx_MSI
+	bool
+	depends on PCI_MSI
+	depends on PCI && 4xx
+	default n
+
 config PPC_MSI_BITMAP
 	bool
 	depends on PCI_MSI
 	default y if MPIC
 	default y if FSL_PCI
+	default y if PPC4xx_MSI
 
 source "arch/powerpc/sysdev/xics/Kconfig"
 

diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile
@@ -41,6 +41,7 @@ obj-$(CONFIG_OF_RTC)		+= of_rtc.o
 ifeq ($(CONFIG_PCI),y)
 obj-$(CONFIG_4xx)		+= ppc4xx_pci.o
 endif
+obj-$(CONFIG_PPC4xx_MSI)	+= ppc4xx_msi.o
 obj-$(CONFIG_PPC4xx_CPM)	+= ppc4xx_cpm.o
 obj-$(CONFIG_PPC4xx_GPIO)	+= ppc4xx_gpio.o