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authorTony Lindgren <tony@atomide.com>2013-03-28 14:45:31 -0700
committerTony Lindgren <tony@atomide.com>2013-03-28 14:45:31 -0700
commitc309f7f46167e85d1aae2fd31f23e7d2b5cdfbe0 (patch)
tree130ae74f0178a73302ea47dfb29403c68875f403 /arch/arm/mach-omap2/omap-smp.c
parentcdcbdfb290b7b15315bf92fb5c339d0a8b32debf (diff)
parentfd1c07861491abf5e0e9ca06799bb5c48f99b64d (diff)
downloadtalos-op-linux-c309f7f46167e85d1aae2fd31f23e7d2b5cdfbe0.tar.gz
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Merge branch 'for_3.10/omap_generic_cleanup_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/ssantosh/linux into omap-for-v3.10/cleanup-v2
Diffstat (limited to 'arch/arm/mach-omap2/omap-smp.c')
-rw-r--r--arch/arm/mach-omap2/omap-smp.c57
1 files changed, 20 insertions, 37 deletions
diff --git a/arch/arm/mach-omap2/omap-smp.c b/arch/arm/mach-omap2/omap-smp.c
index d9727218dd0a..0cbb677c4df4 100644
--- a/arch/arm/mach-omap2/omap-smp.c
+++ b/arch/arm/mach-omap2/omap-smp.c
@@ -21,7 +21,6 @@
#include <linux/io.h>
#include <linux/irqchip/arm-gic.h>
-#include <asm/cacheflush.h>
#include <asm/smp_scu.h>
#include "omap-secure.h"
@@ -103,9 +102,6 @@ static int __cpuinit omap4_boot_secondary(unsigned int cpu, struct task_struct *
else
__raw_writel(0x20, base + OMAP_AUX_CORE_BOOT_0);
- flush_cache_all();
- smp_wmb();
-
if (!cpu1_clkdm)
cpu1_clkdm = clkdm_lookup("mpu1_clkdm");
@@ -168,38 +164,6 @@ static int __cpuinit omap4_boot_secondary(unsigned int cpu, struct task_struct *
return 0;
}
-static void __init wakeup_secondary(void)
-{
- void *startup_addr = omap_secondary_startup;
- void __iomem *base = omap_get_wakeupgen_base();
-
- if (cpu_is_omap446x()) {
- startup_addr = omap_secondary_startup_4460;
- pm44xx_errata |= PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD;
- }
-
- /*
- * Write the address of secondary startup routine into the
- * AuxCoreBoot1 where ROM code will jump and start executing
- * on secondary core once out of WFE
- * A barrier is added to ensure that write buffer is drained
- */
- if (omap_secure_apis_support())
- omap_auxcoreboot_addr(virt_to_phys(startup_addr));
- else
- __raw_writel(virt_to_phys(omap5_secondary_startup),
- base + OMAP_AUX_CORE_BOOT_1);
-
- smp_wmb();
-
- /*
- * Send a 'sev' to wake the secondary core from WFE.
- * Drain the outstanding writes to memory
- */
- dsb_sev();
- mb();
-}
-
/*
* Initialise the CPU possible map early - this describes the CPUs
* which may be present or become present in the system.
@@ -235,6 +199,8 @@ static void __init omap4_smp_init_cpus(void)
static void __init omap4_smp_prepare_cpus(unsigned int max_cpus)
{
+ void *startup_addr = omap_secondary_startup;
+ void __iomem *base = omap_get_wakeupgen_base();
/*
* Initialise the SCU and wake up the secondary core using
@@ -242,7 +208,24 @@ static void __init omap4_smp_prepare_cpus(unsigned int max_cpus)
*/
if (scu_base)
scu_enable(scu_base);
- wakeup_secondary();
+
+ if (cpu_is_omap446x()) {
+ startup_addr = omap_secondary_startup_4460;
+ pm44xx_errata |= PM_OMAP4_ROM_SMP_BOOT_ERRATUM_GICD;
+ }
+
+ /*
+ * Write the address of secondary startup routine into the
+ * AuxCoreBoot1 where ROM code will jump and start executing
+ * on secondary core once out of WFE
+ * A barrier is added to ensure that write buffer is drained
+ */
+ if (omap_secure_apis_support())
+ omap_auxcoreboot_addr(virt_to_phys(startup_addr));
+ else
+ __raw_writel(virt_to_phys(omap5_secondary_startup),
+ base + OMAP_AUX_CORE_BOOT_1);
+
}
struct smp_operations omap4_smp_ops __initdata = {
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