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Commit a4192d32 authored by Tony Lindgren's avatar Tony Lindgren
Browse files

omap: Fix sev instruction usage for multi-omap 



Otherwise we get the following error with omap3_defconfig and CONFIG_SMP:

Error: selected processor does not support `sev'

Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
Acked-by: default avatarSantosh Shilimkar <santosh.shilimkar@ti.com>
parent 8098bb0d

arch/arm/mach-omap2/Makefile

+1 −0
Original line number Original line Diff line number Diff line
@@ -25,6 +25,7 @@ obj-$(CONFIG_LOCAL_TIMERS) += timer-mpu.o 
obj-$(CONFIG_HOTPLUG_CPU)		+= omap-hotplug.o

obj-$(CONFIG_HOTPLUG_CPU)		+= omap-hotplug.o

obj-$(CONFIG_ARCH_OMAP4)		+= omap44xx-smc.o omap4-common.o

obj-$(CONFIG_ARCH_OMAP4)		+= omap44xx-smc.o omap4-common.o





AFLAGS_omap-headsmp.o			:=-Wa,-march=armv7-a

AFLAGS_omap44xx-smc.o			:=-Wa,-march=armv7-a

AFLAGS_omap44xx-smc.o			:=-Wa,-march=armv7-a





# Functions loaded to SRAM

# Functions loaded to SRAM

arch/arm/mach-omap2/omap-smp.c

+1 −2
Original line number Original line Diff line number Diff line
@@ -102,8 +102,7 @@ static void __init wakeup_secondary(void) 
	 * Send a 'sev' to wake the secondary core from WFE.

	 * Send a 'sev' to wake the secondary core from WFE.

	 * Drain the outstanding writes to memory

	 * Drain the outstanding writes to memory

	 */

	 */

	dsb();

	dsb_sev();

	set_event();

	mb();

	mb();

}

}

arch/arm/plat-omap/include/plat/smp.h

+0 −7
Original line number Original line Diff line number Diff line
@@ -19,13 +19,6 @@ 




#include <asm/hardware/gic.h>

#include <asm/hardware/gic.h>





/*

 * set_event() is used to wake up secondary core from wfe using sev. ROM

 * code puts the second core into wfe(standby).

 *

 */

#define set_event()	__asm__ __volatile__ ("sev" : : : "memory")



/* Needed for secondary core boot */

/* Needed for secondary core boot */

extern void omap_secondary_startup(void);

extern void omap_secondary_startup(void);

extern u32 omap_modify_auxcoreboot0(u32 set_mask, u32 clear_mask);

extern u32 omap_modify_auxcoreboot0(u32 set_mask, u32 clear_mask);