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Commit cee9b8d6 authored by Russell King's avatar Russell King Committed by Dinh Nguyen
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ARM: socfpga: make sure socfpga_cpu1start_addr is properly flushed 



Make sure socfpga_cpu1start_addr is properly flushed from it's cache line so
that secondary cpu's can see it.

Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
Tested-by: default avatarSteffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: default avatarDinh Nguyen <dinguyen@opensource.altera.com>
parent 78c03c7a

arch/arm/mach-socfpga/socfpga.c

+5 −0
Original line number Diff line number Diff line
@@ -23,6 +23,7 @@ 
#include <asm/hardware/cache-l2x0.h>

#include <asm/mach/arch.h>

#include <asm/mach/map.h>

#include <asm/cacheflush.h>



#include "core.h"
@@ -73,6 +74,10 @@ void __init socfpga_sysmgr_init(void) 
			(u32 *) &socfpga_cpu1start_addr))

		pr_err("SMP: Need cpu1-start-addr in device tree.\n");



	/* Ensure that socfpga_cpu1start_addr is visible to other CPUs */

	smp_wmb();

	sync_cache_w(&socfpga_cpu1start_addr);



	sys_manager_base_addr = of_iomap(np, 0);



	np = of_find_compatible_node(NULL, NULL, "altr,rst-mgr");