[POWERPC] Small fixes for the Ebony device tree

This patch corrects a number of minor errors in the Ebony device tree:
	- Missing (given as 0) cache sizes are added to the CPU node
	- device_type properties are removed from nodes which don't
have a reasonably well defined device_type binding.  This does require
a very small code change to locate the busses to be probed for
of_platform devices by 'compatible' instead of 'device_type'.
	- A node is added for the SRAM controller
	- The unit address of the small-flash node is adjusted to
correctly reflect the reg property.
	- device_type values for the MAL and ZMII are updated to
reflected more up-to-date versions of the binding.
	- An incorrect offset in the partition map for the large-flash
node is corrected.
	- Some redundant values, already commented out are removed
entirely.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

2 files changed, 16 insertions, 27 deletions

diff --git a/arch/powerpc/boot/dts/ebony.dts b/arch/powerpc/boot/dts/ebony.dts
index b67918651c48..0ec02f4726b5 100644
--- a/arch/powerpc/boot/dts/ebony.dts
+++ b/arch/powerpc/boot/dts/ebony.dts
@@ -33,8 +33,8 @@
                         timebase-frequency = <0>; // Filled in by zImage
                         i-cache-line-size = <32>;
                         d-cache-line-size = <32>;
-                        i-cache-size = <0>;
-                        d-cache-size = <0>;
+                        i-cache-size = <8000>; /* 32 kB */
+                        d-cache-size = <8000>; /* 32 kB */
                         dcr-controller;
                         dcr-access-method = "native";
                 };
@@ -46,7 +46,6 @@
         };
 
         UIC0: interrupt-controller0 {
-                device_type = "ibm,uic";
                 compatible = "ibm,uic-440gp", "ibm,uic";
                 interrupt-controller;
                 cell-index = <0>;
@@ -58,7 +57,6 @@
         };
 
         UIC1: interrupt-controller1 {
-                device_type = "ibm,uic";
                 compatible = "ibm,uic-440gp", "ibm,uic";
                 interrupt-controller;
                 cell-index = <1>;
@@ -71,36 +69,36 @@
         };
 
         CPC0: cpc {
-                device_type = "ibm,cpc";
                 compatible = "ibm,cpc-440gp";
                 dcr-reg = <0b0 003 0e0 010>;
                 // FIXME: anything else?
         };
 
         plb {
-                device_type = "ibm,plb";
                 compatible = "ibm,plb-440gp", "ibm,plb4";
                 #address-cells = <2>;
                 #size-cells = <1>;
                 ranges;
                 clock-frequency = <0>; // Filled in by zImage
 
-                SDRAM0: sdram {
-                        device_type = "memory-controller";
-                        compatible = "ibm,sdram-440gp", "ibm,sdram";
+                SDRAM0: memory-controller {
+                        compatible = "ibm,sdram-440gp";
                         dcr-reg = <010 2>;
                         // FIXME: anything else?
                 };
 
+                SRAM0: sram {
+                        compatible = "ibm,sram-440gp";
+                        dcr-reg = <020 8 00a 1>;
+                };
+
                 DMA0: dma {
                         // FIXME: ???
-                        device_type = "ibm,dma-4xx";
-                        compatible = "ibm,dma-440gp", "ibm,dma-4xx";
+                        compatible = "ibm,dma-440gp";
                         dcr-reg = <100 027>;
                 };
 
                 MAL0: mcmal {
-                        device_type = "mcmal-dma";
                         compatible = "ibm,mcmal-440gp", "ibm,mcmal";
                         dcr-reg = <180 62>;
                         num-tx-chans = <4>;
@@ -119,7 +117,6 @@
                 };
 
                 POB0: opb {
-                        device_type = "ibm,opb";
                         compatible = "ibm,opb-440gp", "ibm,opb";
                         #address-cells = <1>;
                         #size-cells = <1>;
@@ -133,8 +130,7 @@
                         clock-frequency = <0>; // Filled in by zImage
 
                         EBC0: ebc {
-                                device_type = "ibm,ebc";
-                                compatible = "ibm,ebc-440gp";
+                                compatible = "ibm,ebc-440gp", "ibm,ebc";
                                 dcr-reg = <012 2>;
                                 #address-cells = <2>;
                                 #size-cells = <1>;
@@ -147,7 +143,7 @@
                                 interrupts = <5 4>;
                                 interrupt-parent = <&UIC1>;
 
-                                small-flash@0,0 {
+                                small-flash@0,80000 {
                                         device_type = "rom";
                                         compatible = "direct-mapped";
                                         probe-type = "JEDEC";
@@ -159,7 +155,6 @@
 
                                 ds1743@1,0 {
                                         /* NVRAM & RTC */
-                                        device_type = "nvram";
                                         compatible = "ds1743";
                                         reg = <1 0 2000>;
                                 };
@@ -170,7 +165,7 @@
                                         probe-type = "JEDEC";
                                         bank-width = <1>;
                                         partitions = <0 380000
-                                                      280000 80000>;
+                                                      380000 80000>;
                                         partition-names = "fs", "firmware";
                                         reg = <2 0 400000>;
                                 };
@@ -226,13 +221,11 @@
 
                         GPIO0: gpio@40000700 {
                                 /* FIXME */
-                                device_type = "gpio";
                                 compatible = "ibm,gpio-440gp";
                                 reg = <40000700 20>;
                         };
 
                         ZMII0: emac-zmii@40000780 {
-                                device_type = "emac-zmii";
                                 compatible = "ibm,zmii-440gp", "ibm,zmii";
                                 reg = <40000780 c>;
                         };
@@ -299,9 +292,5 @@
 
         chosen {
                 linux,stdout-path = "/plb/opb/serial@40000200";
-//              linux,initrd-start = <0>; /* FIXME */
-//              linux,initrd-end = <0>;
-//              bootargs = "";
         };
 };
-
diff --git a/arch/powerpc/platforms/44x/ebony.c b/arch/powerpc/platforms/44x/ebony.c
index ad526eafc90b..5a7fec8d10d3 100644
--- a/arch/powerpc/platforms/44x/ebony.c
+++ b/arch/powerpc/platforms/44x/ebony.c
@@ -27,9 +27,9 @@
 #include "44x.h"
 
 static struct of_device_id ebony_of_bus[] = {
-        { .type = "ibm,plb", },
-        { .type = "ibm,opb", },
-        { .type = "ibm,ebc", },
+        { .compatible = "ibm,plb4", },
+        { .compatible = "ibm,opb", },
+        { .compatible = "ibm,ebc", },
         {},
 };