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Commit d761f0c5 authored by Michal Simek's avatar Michal Simek
Browse files

microblaze: Add topology init 



Init topology subsystem by cpu registration.

Microblaze Linux kernel is fauling by
"Oops: kernel access of bad area, sig: 11"
because cpu is not initialized.

Signed-off-by: default avatarMichal Simek <monstr@monstr.eu>
parent e343a895

arch/microblaze/kernel/setup.c

+20 −1
Original line number Diff line number Diff line
@@ -26,6 +26,7 @@ 
#include <linux/cache.h>

#include <linux/of_platform.h>

#include <linux/dma-mapping.h>

#include <linux/cpu.h>

#include <asm/cacheflush.h>

#include <asm/entry.h>

#include <asm/cpuinfo.h>
@@ -226,5 +227,23 @@ static int __init setup_bus_notifier(void) 


	return 0;

}



arch_initcall(setup_bus_notifier);



static DEFINE_PER_CPU(struct cpu, cpu_devices);



static int __init topology_init(void)

{

	int i, ret;



	for_each_present_cpu(i) {

		struct cpu *c = &per_cpu(cpu_devices, i);



		ret = register_cpu(c, i);

		if (ret)

			printk(KERN_WARNING "topology_init: register_cpu %d "

						"failed (%d)\n", i, ret);

	}



	return 0;

}

subsys_initcall(topology_init);