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author | Catalin Marinas <catalin.marinas@arm.com> | 2009-07-24 12:33:00 +0100 |
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committer | Catalin Marinas <catalin.marinas@arm.com> | 2009-07-24 12:33:00 +0100 |
commit | dff2ab16ac53d2e21c1ee5ec72f446d5740d8ca2 (patch) | |
tree | 728576b978b00260b3a54bdbecfcd5b1999de5c2 | |
parent | adca6dc23bc620ea95392659625200a252b97be3 (diff) | |
download | op-kernel-dev-dff2ab16ac53d2e21c1ee5ec72f446d5740d8ca2.zip op-kernel-dev-dff2ab16ac53d2e21c1ee5ec72f446d5740d8ca2.tar.gz |
Thumb-2: Pass a Thumb-2 address to the secondary CPUs to jump to
This patch sets bit 0 in the startup address passed to the secondary
CPUs so that they branch into Thumb-2 mode.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
-rw-r--r-- | arch/arm/mach-realview/platsmp.c | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/arch/arm/mach-realview/platsmp.c b/arch/arm/mach-realview/platsmp.c index ac0e83f..a88458b 100644 --- a/arch/arm/mach-realview/platsmp.c +++ b/arch/arm/mach-realview/platsmp.c @@ -20,6 +20,7 @@ #include <mach/hardware.h> #include <asm/mach-types.h> #include <asm/localtimer.h> +#include <asm/unified.h> #include <mach/board-eb.h> #include <mach/board-pb11mp.h> @@ -137,26 +138,19 @@ int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle) static void __init poke_milo(void) { - extern void secondary_startup(void); - /* nobody is to be released from the pen yet */ pen_release = -1; /* - * write the address of secondary startup into the system-wide - * flags register, then clear the bottom two bits, which is what - * BootMonitor is waiting for + * Write the address of secondary startup into the system-wide flags + * register. The BootMonitor waits for this register to become + * non-zero. */ -#if 1 #define REALVIEW_SYS_FLAGSS_OFFSET 0x30 - __raw_writel(virt_to_phys(realview_secondary_startup), - __io_address(REALVIEW_SYS_BASE) + - REALVIEW_SYS_FLAGSS_OFFSET); #define REALVIEW_SYS_FLAGSC_OFFSET 0x34 - __raw_writel(3, + __raw_writel(BSYM(virt_to_phys(realview_secondary_startup)), __io_address(REALVIEW_SYS_BASE) + - REALVIEW_SYS_FLAGSC_OFFSET); -#endif + REALVIEW_SYS_FLAGSS_OFFSET); mb(); } |