Commit 0d0f9e5f authored by Benjamin Herrenschmidt's avatar Benjamin Herrenschmidt Committed by Michael Ellerman
Browse files

powerpc/microwatt: Populate platform bus from device-tree 



Just like any other embedded platform.

Add an empty soc node.

Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarPaul Mackerras <paulus@ozlabs.org>
Reviewed-by: default avatarSegher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/YMwWx98+PMibZq/G@thinks.paulus.ozlabs.org
parent 151b88e8

arch/powerpc/boot/dts/microwatt.dts

+7 −0
Original line number Diff line number Diff line
@@ -95,4 +95,11 @@ 
					  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>;

	};

};

arch/powerpc/platforms/microwatt/setup.c

+8 −0
Original line number Diff line number Diff line
@@ -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,