MIPS: SGI-IP27: do boot CPU init later

To make use of per_cpu variables in interrupt code per_cpu_init() must
be done after setup_per_cpu_areas(). This is achieved by calling it
in smp_prepare_boot_cpu() via a new smp_ops method.

Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org

arch/mips/sgi-ip27/ip27-init.c

@@ -212,7 +212,6 @@ void __init plat_mem_setup(void)
 #endif
 
 	ioc3_eth_init();
-	per_cpu_init();
 
 	set_io_port_base(IO_BASE);
 }

arch/mips/sgi-ip27/ip27-smp.c

@@ -177,7 +177,7 @@ static void ip27_send_ipi_mask(const struct cpumask *mask, unsigned int action)
 		ip27_send_ipi_single(i, action);
 }
 
-static void ip27_init_secondary(void)
+static void ip27_init_cpu(void)
 {
 	per_cpu_init();
 }
@@ -235,9 +235,10 @@ static void __init ip27_prepare_cpus(unsigned int max_cpus)
 const struct plat_smp_ops ip27_smp_ops = {
 	.send_ipi_single	= ip27_send_ipi_single,
 	.send_ipi_mask		= ip27_send_ipi_mask,
-	.init_secondary		= ip27_init_secondary,
+	.init_secondary		= ip27_init_cpu,
 	.smp_finish		= ip27_smp_finish,
 	.boot_secondary		= ip27_boot_secondary,
 	.smp_setup		= ip27_smp_setup,
 	.prepare_cpus		= ip27_prepare_cpus,
+	.prepare_boot_cpu	= ip27_init_cpu,
 };