[PATCH 04/11] powerpc/microwatt: Populate platform bus from device-tree
From: Paul Mackerras <hidden>
Date: 2021-06-14 23:09:05
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
From: Benjamin Herrenschmidt <benh@kernel.crashing.org> Just like any other embedded platform. Add an empty soc node. Signed-off-by: Benjamin Herrenschmidt <benh@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