diff options
| author | NeilBrown <neilb@suse.de> | 2012-08-01 20:40:02 +1000 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2012-08-01 20:40:02 +1000 |
| commit | bb181e2e48f8c85db08c9cb015cbba9618dbf05c (patch) | |
| tree | 191bc24dd97bcb174535cc217af082f16da3b43d /arch/arm/mach-omap2/omap-hotplug.c | |
| parent | d57368afe63b3b7b45ce6c2b8c5276417935be2f (diff) | |
| parent | c039c332f23e794deb6d6f37b9f07ff3b27fb2cf (diff) | |
Merge commit 'c039c332f23e794deb6d6f37b9f07ff3b27fb2cf' into md
Pull in pre-requisites for adding raid10 support to dm-raid.
Diffstat (limited to 'arch/arm/mach-omap2/omap-hotplug.c')
| -rw-r--r-- | arch/arm/mach-omap2/omap-hotplug.c | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/arch/arm/mach-omap2/omap-hotplug.c b/arch/arm/mach-omap2/omap-hotplug.c index 56c345b8b93..414083b427d 100644 --- a/arch/arm/mach-omap2/omap-hotplug.c +++ b/arch/arm/mach-omap2/omap-hotplug.c @@ -17,8 +17,10 @@ #include <linux/kernel.h> #include <linux/errno.h> #include <linux/smp.h> +#include <linux/io.h> #include <asm/cacheflush.h> +#include <mach/omap-wakeupgen.h> #include "common.h" @@ -35,7 +37,8 @@ int platform_cpu_kill(unsigned int cpu) */ void __ref platform_cpu_die(unsigned int cpu) { - unsigned int this_cpu; + unsigned int boot_cpu = 0; + void __iomem *base = omap_get_wakeupgen_base(); flush_cache_all(); dsb(); @@ -43,16 +46,27 @@ void __ref platform_cpu_die(unsigned int cpu) /* * we're ready for shutdown now, so do it */ - if (omap_modify_auxcoreboot0(0x0, 0x200) != 0x0) - pr_err("Secure clear status failed\n"); + if (omap_secure_apis_support()) { + if (omap_modify_auxcoreboot0(0x0, 0x200) != 0x0) + pr_err("Secure clear status failed\n"); + } else { + __raw_writel(0, base + OMAP_AUX_CORE_BOOT_0); + } + for (;;) { /* * Enter into low power state */ omap4_hotplug_cpu(cpu, PWRDM_POWER_OFF); - this_cpu = smp_processor_id(); - if (omap_read_auxcoreboot0() == this_cpu) { + + if (omap_secure_apis_support()) + boot_cpu = omap_read_auxcoreboot0(); + else + boot_cpu = + __raw_readl(base + OMAP_AUX_CORE_BOOT_0) >> 5; + + if (boot_cpu == smp_processor_id()) { /* * OK, proper wakeup, we're done */ |