[PATCH 04/11] powerpc/microwatt: Populate platform bus from device-tree

[Paul Mackerras]

From: Benjamin Herrenschmidt <b...@kernel.crashing.org>

Just like any other embedded platform.

Add an empty soc node.

Signed-off-by: Benjamin Herrenschmidt <b...@kernel.crashing.org>
---
 arch/powerpc/boot/dts/microwatt.dts      | 7 +++++++
 arch/powerpc/platforms/microwatt/setup.c | 8 ++++++++
 2 files changed, 15 insertions(+)

diff --git a/arch/powerpc/boot/dts/microwatt.dts 
b/arch/powerpc/boot/dts/microwatt.dts
index 9b2e64da9432..a72177e5041d 100644
--- a/arch/powerpc/boot/dts/microwatt.dts
+++ b/arch/powerpc/boot/dts/microwatt.dts
@@ -102,4 +102,11 @@ chosen {
                ibm,architecture-vec-5 = [19 00 10 00 00 00 00 00 00 00 00 00 
00 00 00 00 00 00 00 00 00 00 00 00 40 00 40];
        };
 
+       soc@c0000000 {
+               compatible = "simple-bus";
+               #address-cells = <1>;
+               #size-cells = <1>;
+
+               ranges = <0 0 0xc0000000 0x40000000>;
+       };
 };
diff --git a/arch/powerpc/platforms/microwatt/setup.c 
b/arch/powerpc/platforms/microwatt/setup.c
index d80d52612672..5af4adf881bc 100644
--- a/arch/powerpc/platforms/microwatt/setup.c
+++ b/arch/powerpc/platforms/microwatt/setup.c
@@ -8,6 +8,8 @@
 #include <linux/kernel.h>
 #include <linux/stddef.h>
 #include <linux/init.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
 #include <asm/machdep.h>
 #include <asm/time.h>
 
@@ -16,6 +18,12 @@ static int __init microwatt_probe(void)
        return of_machine_is_compatible("microwatt-soc");
 }
 
+static int __init microwatt_populate(void)
+{
+       return of_platform_default_populate(NULL, NULL, NULL);
+}
+machine_arch_initcall(microwatt, microwatt_populate);
+
 define_machine(microwatt) {
        .name                   = "microwatt",
        .probe                  = microwatt_probe,
-- 
2.31.1