powerpc/86xx: Basic flash support for GE SBC610

Support for the SBC610 VPX Single Board Computer from GE (PowerPC MPC8641D).

This patch adds basic support for the on-board flash.

Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

1 files changed, 42 insertions, 8 deletions

diff --git a/arch/powerpc/boot/dts/gef_sbc610.dts b/arch/powerpc/boot/dts/gef_sbc610.dts
index 78c336f0fcb8..bb7060078fb4 100644
--- a/arch/powerpc/boot/dts/gef_sbc610.dts
+++ b/arch/powerpc/boot/dts/gef_sbc610.dts
@@ -75,14 +75,48 @@
                 interrupts = <19 2>;
                 interrupt-parent = <&mpic>;
 
-                ranges = <0 0 0xff000000 0x01000000     // 16MB Boot flash
-                          1 0 0xe8000000 0x08000000     // Paged Flash 0
-                          2 0 0xe0000000 0x08000000     // Paged Flash 1
-                          3 0 0xfc100000 0x00020000     // NVRAM
-                          4 0 0xfc000000 0x00008000     // FPGA
-                          5 0 0xfc008000 0x00008000     // AFIX FPGA
-                          6 0 0xfd000000 0x00800000     // IO FPGA (8-bit)
-                          7 0 0xfd800000 0x00800000>;   // IO FPGA (32-bit)
+                ranges = <0 0 0xff000000 0x01000000     // 16MB Boot flash
+                          1 0 0xe8000000 0x08000000     // Paged Flash 0
+                          2 0 0xe0000000 0x08000000     // Paged Flash 1
+                          3 0 0xfc100000 0x00020000     // NVRAM
+                          4 0 0xfc000000 0x00008000     // FPGA
+                          5 0 0xfc008000 0x00008000     // AFIX FPGA
+                          6 0 0xfd000000 0x00800000     // IO FPGA (8-bit)
+                          7 0 0xfd800000 0x00800000>;   // IO FPGA (32-bit)
+
+                /* flash@0,0 is a mirror of part of the memory in flash@1,0
+                flash@0,0 {
+                        compatible = "gef,sbc610-firmware-mirror", "cfi-flash";
+                        reg = <0x0 0x0 0x1000000>;
+                        bank-width = <4>;
+                        device-width = <2>;
+                        #address-cells = <1>;
+                        #size-cells = <1>;
+                        partition@0 {
+                                label = "firmware";
+                                reg = <0x0 0x1000000>;
+                                read-only;
+                        };
+                };
+                */
+
+                flash@1,0 {
+                        compatible = "gef,sbc610-paged-flash", "cfi-flash";
+                        reg = <0x1 0x0 0x8000000>;
+                        bank-width = <4>;
+                        device-width = <2>;
+                        #address-cells = <1>;
+                        #size-cells = <1>;
+                        partition@0 {
+                                label = "user";
+                                reg = <0x0 0x7800000>;
+                        };
+                        partition@7800000 {
+                                label = "firmware";
+                                reg = <0x7800000 0x800000>;
+                                read-only;
+                        };
+                };
 
                 nvram@3,0 {
                         device_type = "nvram";