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>

1 files changed, 18 insertions, 0 deletions

diff --git a/arch/powerpc/boot/dts/katmai.dts b/arch/powerpc/boot/dts/katmai.dts
index 7c3be5e45748..f913dbe25d35 100644
--- 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>;