powerpc/44x: Adding PCI-E support for PowerPC 460SX based SOC.

Add support for PCI-e on the AMCC 460SX boards

Signed-off-by: Tirumala Marri <tmarri@amcc.com>
Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

1 files changed, 122 insertions, 0 deletions

diff --git a/arch/powerpc/boot/dts/redwood.dts b/arch/powerpc/boot/dts/redwood.dts
index d2af32e2bf7a..81636c01d906 100644
--- a/arch/powerpc/boot/dts/redwood.dts
+++ b/arch/powerpc/boot/dts/redwood.dts
@@ -234,10 +234,132 @@
                                 has-inverted-stacr-oc;
                                 has-new-stacr-staopc;
                         };
+                };
+                PCIE0: pciex@d00000000 {
+                        device_type = "pci";
+                        #interrupt-cells = <1>;
+                        #size-cells = <2>;
+                        #address-cells = <3>;
+                        compatible = "ibm,plb-pciex-460sx", "ibm,plb-pciex";
+                        primary;
+                        port = <0x0>; /* port number */
+                        reg = <0x0000000d 0x00000000 0x20000000 /* Config space access */
+                               0x0000000c 0x10000000 0x00001000>;       /* Registers */
+                        dcr-reg = <0x100 0x020>;
+                        sdr-base = <0x300>;
+
+                        /* Outbound ranges, one memory and one IO,
+                         * later cannot be changed
+                         */
+                        ranges = <0x02000000 0x00000000 0x80000000 0x0000000e 0x00000000 0x00000000 0x80000000
+                                  0x01000000 0x00000000 0x00000000 0x0000000f 0x80000000 0x00000000 0x00010000>;
+
+                        /* Inbound 2GB range starting at 0 */
+                        dma-ranges = <0x42000000 0x0 0x0 0x0 0x0 0x0 0x80000000>;
 
+                        /* This drives busses 10 to 0x1f */
+                        bus-range = <0x10 0x1f>;
+
+                        /* Legacy interrupts (note the weird polarity, the bridge seems
+                         * to invert PCIe legacy interrupts).
+                         * We are de-swizzling here because the numbers are actually for
+                         * port of the root complex virtual P2P bridge. But I want
+                         * to avoid putting a node for it in the tree, so the numbers
+                         * below are basically de-swizzled numbers.
+                         * The real slot is on idsel 0, so the swizzling is 1:1
+                         */
+                        interrupt-map-mask = <0x0 0x0 0x0 0x7>;
+                        interrupt-map = <
+                                0x0 0x0 0x0 0x1 &UIC3 0x0 0x4 /* swizzled int A */
+                                0x0 0x0 0x0 0x2 &UIC3 0x1 0x4 /* swizzled int B */
+                                0x0 0x0 0x0 0x3 &UIC3 0x2 0x4 /* swizzled int C */
+                                0x0 0x0 0x0 0x4 &UIC3 0x3 0x4 /* swizzled int D */>;
+                };
+
+                PCIE1: pciex@d20000000 {
+                        device_type = "pci";
+                        #interrupt-cells = <1>;
+                        #size-cells = <2>;
+                        #address-cells = <3>;
+                        compatible = "ibm,plb-pciex-460sx", "ibm,plb-pciex";
+                        primary;
+                        port = <0x1>; /* port number */
+                        reg = <0x0000000d 0x20000000 0x20000000 /* Config space access */
+                               0x0000000c 0x10001000 0x00001000>;       /* Registers */
+                        dcr-reg = <0x120 0x020>;
+                        sdr-base = <0x340>;
+
+                        /* Outbound ranges, one memory and one IO,
+                         * later cannot be changed
+                         */
+                        ranges = <0x02000000 0x00000000 0x80000000 0x0000000e 0x80000000 0x00000000 0x80000000
+                                  0x01000000 0x00000000 0x00000000 0x0000000f 0x80010000 0x00000000 0x00010000>;
+
+                        /* Inbound 2GB range starting at 0 */
+                        dma-ranges = <0x42000000 0x0 0x0 0x0 0x0 0x0 0x80000000>;
+
+                        /* This drives busses 10 to 0x1f */
+                        bus-range = <0x20 0x2f>;
+
+                        /* Legacy interrupts (note the weird polarity, the bridge seems
+                         * to invert PCIe legacy interrupts).
+                         * We are de-swizzling here because the numbers are actually for
+                         * port of the root complex virtual P2P bridge. But I want
+                         * to avoid putting a node for it in the tree, so the numbers
+                         * below are basically de-swizzled numbers.
+                         * The real slot is on idsel 0, so the swizzling is 1:1
+                         */
+                        interrupt-map-mask = <0x0 0x0 0x0 0x7>;
+                        interrupt-map = <
+                                0x0 0x0 0x0 0x1 &UIC3 0x4 0x4 /* swizzled int A */
+                                0x0 0x0 0x0 0x2 &UIC3 0x5 0x4 /* swizzled int B */
+                                0x0 0x0 0x0 0x3 &UIC3 0x6 0x4 /* swizzled int C */
+                                0x0 0x0 0x0 0x4 &UIC3 0x7 0x4 /* swizzled int D */>;
+                };
+
+                PCIE2: pciex@d40000000 {
+                        device_type = "pci";
+                        #interrupt-cells = <1>;
+                        #size-cells = <2>;
+                        #address-cells = <3>;
+                        compatible = "ibm,plb-pciex-460sx", "ibm,plb-pciex";
+                        primary;
+                        port = <0x2>; /* port number */
+                        reg = <0x0000000d 0x40000000 0x20000000 /* Config space access */
+                               0x0000000c 0x10002000 0x00001000>;       /* Registers */
+                        dcr-reg = <0x140 0x020>;
+                        sdr-base = <0x370>;
+
+                        /* Outbound ranges, one memory and one IO,
+                         * later cannot be changed
+                         */
+                        ranges = <0x02000000 0x00000000 0x80000000 0x0000000f 0x00000000 0x00000000 0x80000000
+                                  0x01000000 0x00000000 0x00000000 0x0000000f 0x80020000 0x00000000 0x00010000>;
+
+                        /* Inbound 2GB range starting at 0 */
+                        dma-ranges = <0x42000000 0x0 0x0 0x0 0x0 0x0 0x80000000>;
+
+                        /* This drives busses 10 to 0x1f */
+                        bus-range = <0x30 0x3f>;
+
+                        /* Legacy interrupts (note the weird polarity, the bridge seems
+                         * to invert PCIe legacy interrupts).
+                         * We are de-swizzling here because the numbers are actually for
+                         * port of the root complex virtual P2P bridge. But I want
+                         * to avoid putting a node for it in the tree, so the numbers
+                         * below are basically de-swizzled numbers.
+                         * The real slot is on idsel 0, so the swizzling is 1:1
+                         */
+                        interrupt-map-mask = <0x0 0x0 0x0 0x7>;
+                        interrupt-map = <
+                                0x0 0x0 0x0 0x1 &UIC3 0x8 0x4 /* swizzled int A */
+                                0x0 0x0 0x0 0x2 &UIC3 0x9 0x4 /* swizzled int B */
+                                0x0 0x0 0x0 0x3 &UIC3 0xa 0x4 /* swizzled int C */
+                                0x0 0x0 0x0 0x4 &UIC3 0xb 0x4 /* swizzled int D */>;
                 };
 
         };
+
         chosen {
                 linux,stdout-path = "/plb/opb/serial@ef600200";
         };