powerpc/of: add eSPI controller dts bindings and DTS modification

Also modifiy the document of cell-index in SPI controller. Add the
SPI flash(s25fl128p01) support on p4080ds and mpc8536ds board.

Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

2 files changed, 56 insertions, 7 deletions

diff --git a/arch/powerpc/boot/dts/mpc8536ds.dts b/arch/powerpc/boot/dts/mpc8536ds.dts
index 815cebb2e3e5..a75c10eed269 100644
--- a/arch/powerpc/boot/dts/mpc8536ds.dts
+++ b/arch/powerpc/boot/dts/mpc8536ds.dts
@@ -108,6 +108,58 @@
                         };
                 };
 
+                spi@7000 {
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        compatible = "fsl,mpc8536-espi";
+                        reg = <0x7000 0x1000>;
+                        interrupts = <59 0x2>;
+                        interrupt-parent = <&mpic>;
+                        fsl,espi-num-chipselects = <4>;
+
+                        flash@0 {
+                                #address-cells = <1>;
+                                #size-cells = <1>;
+                                compatible = "spansion,s25sl12801";
+                                reg = <0>;
+                                spi-max-frequency = <40000000>;
+                                partition@u-boot {
+                                        label = "u-boot";
+                                        reg = <0x00000000 0x00100000>;
+                                        read-only;
+                                };
+                                partition@kernel {
+                                        label = "kernel";
+                                        reg = <0x00100000 0x00500000>;
+                                        read-only;
+                                };
+                                partition@dtb {
+                                        label = "dtb";
+                                        reg = <0x00600000 0x00100000>;
+                                        read-only;
+                                };
+                                partition@fs {
+                                        label = "file system";
+                                        reg = <0x00700000 0x00900000>;
+                                };
+                        };
+                        flash@1 {
+                                compatible = "spansion,s25sl12801";
+                                reg = <1>;
+                                spi-max-frequency = <40000000>;
+                        };
+                        flash@2 {
+                                compatible = "spansion,s25sl12801";
+                                reg = <2>;
+                                spi-max-frequency = <40000000>;
+                        };
+                        flash@3 {
+                                compatible = "spansion,s25sl12801";
+                                reg = <3>;
+                                spi-max-frequency = <40000000>;
+                        };
+                };
+
                 dma@21300 {
                         #address-cells = <1>;
                         #size-cells = <1>;
diff --git a/arch/powerpc/boot/dts/p4080ds.dts b/arch/powerpc/boot/dts/p4080ds.dts
index 2f0de24e3822..5b7fc29dd6cf 100644
--- a/arch/powerpc/boot/dts/p4080ds.dts
+++ b/arch/powerpc/boot/dts/p4080ds.dts
@@ -236,22 +236,19 @@
                 };
 
                 spi@110000 {
-                        cell-index = <0>;
                         #address-cells = <1>;
                         #size-cells = <0>;
-                        compatible = "fsl,espi";
+                        compatible = "fsl,p4080-espi", "fsl,mpc8536-espi";
                         reg = <0x110000 0x1000>;
                         interrupts = <53 0x2>;
                         interrupt-parent = <&mpic>;
-                        espi,num-ss-bits = <4>;
-                        mode = "cpu";
+                        fsl,espi-num-chipselects = <4>;
 
-                        fsl_m25p80@0 {
+                        flash@0 {
                                 #address-cells = <1>;
                                 #size-cells = <1>;
-                                compatible = "fsl,espi-flash";
+                                compatible = "spansion,s25sl12801";
                                 reg = <0>;
-                                linux,modalias = "fsl_m25p80";
                                 spi-max-frequency = <40000000>; /* input clock */
                                 partition@u-boot {
                                         label = "u-boot";