ARM: 7518/1: integrator: convert AMBA devices to device tree

This converts the AMBA (PrimeCell) devices on the Integrator/AP
and Integrator/CP over to probing from the Device Tree if the
kernel is compiled for Device Tree support.

We continue to #ifdef out all non-DT code and vice versa on
respective boot type to get a clean cut.

We need to add a bunch of auxdata (compare to the Versatile)
to handle bus names and callbacks alike.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

3 files changed, 119 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/integrator.dtsi b/arch/arm/boot/dts/integrator.dtsi
index b464abadd10..9bcc09d5445 100644
--- a/arch/arm/boot/dts/integrator.dtsi
+++ b/arch/arm/boot/dts/integrator.dtsi
@@ -30,4 +30,42 @@
                 reg = <0x14000000 0x100>;
                 clear-mask = <0xffffffff>;
         };
+
+        fpga {
+                compatible = "arm,amba-bus", "simple-bus";
+                #address-cells = <1>;
+                #size-cells = <1>;
+                ranges;
+                interrupt-parent = <&pic>;
+
+                /*
+                 * These PrimeCells are in the same locations and using the
+                 * same interrupts in all Integrators, however the silicon
+                 * version deployed is different.
+                 */
+                rtc@15000000 {
+                        reg = <0x15000000 0x1000>;
+                        interrupts = <8>;
+                };
+
+                uart@16000000 {
+                        reg = <0x16000000 0x1000>;
+                        interrupts = <1>;
+                };
+
+                uart@17000000 {
+                        reg = <0x17000000 0x1000>;
+                        interrupts = <2>;
+                };
+
+                kmi@18000000 {
+                        reg = <0x18000000 0x1000>;
+                        interrupts = <3>;
+                };
+
+                kmi@19000000 {
+                        reg = <0x19000000 0x1000>;
+                        interrupts = <4>;
+                };
+        };
 };
diff --git a/arch/arm/boot/dts/integratorap.dts b/arch/arm/boot/dts/integratorap.dts
index 083ff395de0..61767757b50 100644
--- a/arch/arm/boot/dts/integratorap.dts
+++ b/arch/arm/boot/dts/integratorap.dts
@@ -33,4 +33,36 @@
         pic: pic@14000000 {
                 valid-mask = <0x003fffff>;
         };
+
+        fpga {
+                /*
+                 * The Integator/AP predates the idea to have magic numbers
+                 * identifying the PrimeCell in hardware, thus we have to
+                 * supply these from the device tree.
+                 */
+                rtc: rtc@15000000 {
+                        compatible = "arm,pl030", "arm,primecell";
+                        arm,primecell-periphid = <0x00041030>;
+                };
+
+                uart0: uart@16000000 {
+                        compatible = "arm,pl010", "arm,primecell";
+                        arm,primecell-periphid = <0x00041010>;
+                };
+
+                uart1: uart@17000000 {
+                        compatible = "arm,pl010", "arm,primecell";
+                        arm,primecell-periphid = <0x00041010>;
+                };
+
+                kmi0: kmi@18000000 {
+                        compatible = "arm,pl050", "arm,primecell";
+                        arm,primecell-periphid = <0x00041050>;
+                };
+
+                kmi1: kmi@19000000 {
+                        compatible = "arm,pl050", "arm,primecell";
+                        arm,primecell-periphid = <0x00041050>;
+                };
+        };
 };
diff --git a/arch/arm/boot/dts/integratorcp.dts b/arch/arm/boot/dts/integratorcp.dts
index 63033144442..7bd49466cb0 100644
--- a/arch/arm/boot/dts/integratorcp.dts
+++ b/arch/arm/boot/dts/integratorcp.dts
@@ -51,4 +51,53 @@
                 clear-mask = <0x00000fff>;
                 valid-mask = <0x00000fff>;
         };
+
+        fpga {
+                /*
+                 * These PrimeCells are at the same location and using
+                 * the same interrupts in all Integrators, but in the CP
+                 * slightly newer versions are deployed.
+                 */
+                rtc@15000000 {
+                        compatible = "arm,pl031", "arm,primecell";
+                };
+
+                uart@16000000 {
+                        compatible = "arm,pl011", "arm,primecell";
+                };
+
+                uart@17000000 {
+                        compatible = "arm,pl011", "arm,primecell";
+                };
+
+                kmi@18000000 {
+                        compatible = "arm,pl050", "arm,primecell";
+                };
+
+                kmi@19000000 {
+                        compatible = "arm,pl050", "arm,primecell";
+                };
+
+                /*
+                 * These PrimeCells are only available on the Integrator/CP
+                 */
+                mmc@1c000000 {
+                        compatible = "arm,pl180", "arm,primecell";
+                        reg = <0x1c000000 0x1000>;
+                        interrupts = <23 24>;
+                        max-frequency = <515633>;
+                };
+
+                aaci@1d000000 {
+                        compatible = "arm,pl041", "arm,primecell";
+                        reg = <0x1d000000 0x1000>;
+                        interrupts = <25>;
+                };
+
+                clcd@c0000000 {
+                        compatible = "arm,pl110", "arm,primecell";
+                        reg = <0xC0000000 0x1000>;
+                        interrupts = <22>;
+                };
+        };
 };