[PATCH v2 3/9] powerpc/microwatt: Populate platform bus from device-tree

[Paul Mackerras]

From: Benjamin Herrenschmidt <benh at kernel.crashing.org>

Just like any other embedded platform.

Add an empty soc node.

Signed-off-by: Benjamin Herrenschmidt <benh at kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus at ozlabs.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 ac264ad3faaf..9b6140c90370 100644
--- a/arch/powerpc/boot/dts/microwatt.dts
+++ b/arch/powerpc/boot/dts/microwatt.dts
@@ -95,4 +95,11 @@ chosen {
 					  00 00 00 00 00 00 00 00 40 00 40];
 	};
 
+	soc at 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