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ARM: sunxi: fix build for THUMB2_KERNEL

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Building an SMP kernel for the sunxi platform with THUMB2 instructions
fails with this error at the moment:

headsmp.S:7: Error: Thumb encoding does not support an immediate here -- `msr cpsr_fsxc,#0xd3'

Since the generic secondary_startup function already does
the same thing in a safe way, we can just drop the private
sunxi implementation and jump straight to secondary_startup.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit is contained in:
Arnd Bergmann 2014-03-16 18:04:54 +01:00
parent 96c3a2506b
commit 1146b60004
4 changed files with 3 additions and 11 deletions
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1
arch/arm/include/asm/smp.h
View File

@ -74,6 +74,7 @@ struct secondary_data {
};
extern struct secondary_data secondary_data;
extern volatile int pen_release;
extern void secondary_startup(void);
extern int __cpu_disable(void);

2
arch/arm/mach-sunxi/Makefile
View File

@ -1,2 +1,2 @@
obj-$(CONFIG_ARCH_SUNXI) += sunxi.o
obj-$(CONFIG_SMP) += platsmp.o headsmp.o
obj-$(CONFIG_SMP) += platsmp.o

9
arch/arm/mach-sunxi/headsmp.S
View File

@ -1,9 +0,0 @@
#include <linux/linkage.h>
#include <linux/init.h>
.section ".text.head", "ax"
ENTRY(sun6i_secondary_startup)
msr cpsr_fsxc, #0xd3
b secondary_startup
ENDPROC(sun6i_secondary_startup)

2
arch/arm/mach-sunxi/platsmp.c
View File

@ -82,7 +82,7 @@ static int sun6i_smp_boot_secondary(unsigned int cpu,
spin_lock(&cpu_lock);
/* Set CPU boot address */
writel(virt_to_phys(sun6i_secondary_startup),
writel(virt_to_phys(secondary_startup),
cpucfg_membase + CPUCFG_PRIVATE0_REG);
/* Assert the CPU core in reset */