x86: crownbay: Add pci devices in the dts file

The Topcliff PCH has 4 UART devices integrated (Device 10, Funciton
1/2/3/4). Add the corresponding device nodes in the crownbay.dts per
Open Firmware PCI bus bindings.

Also a comment block is added for the 'stdout-path' property in the
chosen node, mentioning that by default the legacy superio serial
port (io addr 0x3f8) is still used on Crown Bay as the console port.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>

diff --git a/arch/x86/dts/crownbay.dts b/arch/x86/dts/crownbay.dts
index 97f7a52..e81054e 100644 (file)
--- a/arch/x86/dts/crownbay.dts
+++ b/arch/x86/dts/crownbay.dts
@@ -32,6 +32,14 @@
        };
 
        chosen {
+               /*
+                * By default the legacy superio serial port is used as the
+                * U-Boot serial console. If we want to use UART from Topcliff
+                * PCH as the console, change this property to &pciuart#.
+                *
+                * For example, stdout-path = &pciuart0 will use the first
+                * UART on Topcliff PCH.
+                */
                stdout-path = "/serial";
        };
 
@@ -52,4 +60,77 @@
                };
        };
 
+       pci {
+               #address-cells = <3>;
+               #size-cells = <2>;
+               compatible = "intel,pci";
+               device_type = "pci";
+
+               pcie@17,0 {
+                       #address-cells = <3>;
+                       #size-cells = <2>;
+                       compatible = "intel,pci";
+                       device_type = "pci";
+
+                       topcliff@0,0 {
+                               #address-cells = <3>;
+                               #size-cells = <2>;
+                               compatible = "intel,pci";
+                               device_type = "pci";
+
+                               pciuart0: uart@a,1 {
+                                       compatible = "pci8086,8811.00",
+                                                       "pci8086,8811",
+                                                       "pciclass,070002",
+                                                       "pciclass,0700",
+                                                       "x86-uart";
+                                       reg = <0x00025100 0x0 0x0 0x0 0x0
+                                              0x01025110 0x0 0x0 0x0 0x0>;
+                                       reg-shift = <0>;
+                                       clock-frequency = <1843200>;
+                                       current-speed = <115200>;
+                               };
+
+                               pciuart1: uart@a,2 {
+                                       compatible = "pci8086,8812.00",
+                                                       "pci8086,8812",
+                                                       "pciclass,070002",
+                                                       "pciclass,0700",
+                                                       "x86-uart";
+                                       reg = <0x00025200 0x0 0x0 0x0 0x0
+                                              0x01025210 0x0 0x0 0x0 0x0>;
+                                       reg-shift = <0>;
+                                       clock-frequency = <1843200>;
+                                       current-speed = <115200>;
+                               };
+
+                               pciuart2: uart@a,3 {
+                                       compatible = "pci8086,8813.00",
+                                                       "pci8086,8813",
+                                                       "pciclass,070002",
+                                                       "pciclass,0700",
+                                                       "x86-uart";
+                                       reg = <0x00025300 0x0 0x0 0x0 0x0
+                                              0x01025310 0x0 0x0 0x0 0x0>;
+                                       reg-shift = <0>;
+                                       clock-frequency = <1843200>;
+                                       current-speed = <115200>;
+                               };
+
+                               pciuart3: uart@a,4 {
+                                       compatible = "pci8086,8814.00",
+                                                       "pci8086,8814",
+                                                       "pciclass,070002",
+                                                       "pciclass,0700",
+                                                       "x86-uart";
+                                       reg = <0x00025400 0x0 0x0 0x0 0x0
+                                              0x01025410 0x0 0x0 0x0 0x0>;
+                                       reg-shift = <0>;
+                                       clock-frequency = <1843200>;
+                                       current-speed = <115200>;
+                               };
+                       };
+               };
+       };
+
 };