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-rw-r--r--arch/arm/mach-bcm/platsmp.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/arch/arm/mach-bcm/platsmp.c b/arch/arm/mach-bcm/platsmp.c
index 9e3f275934eb..7d954830eb57 100644
--- a/arch/arm/mach-bcm/platsmp.c
+++ b/arch/arm/mach-bcm/platsmp.c
@@ -17,6 +17,7 @@
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/io.h>
+#include <linux/irqchip/irq-bcm2836.h>
#include <linux/jiffies.h>
#include <linux/of.h>
#include <linux/of_address.h>
@@ -287,6 +288,38 @@ out:
return ret;
}
+static int bcm2836_boot_secondary(unsigned int cpu, struct task_struct *idle)
+{
+ void __iomem *intc_base;
+ struct device_node *dn;
+ char *name;
+
+ name = "brcm,bcm2836-l1-intc";
+ dn = of_find_compatible_node(NULL, NULL, name);
+ if (!dn) {
+ pr_err("unable to find intc node\n");
+ return -ENODEV;
+ }
+
+ intc_base = of_iomap(dn, 0);
+ of_node_put(dn);
+
+ if (!intc_base) {
+ pr_err("unable to remap intc base register\n");
+ return -ENOMEM;
+ }
+
+ writel(virt_to_phys(secondary_startup),
+ intc_base + LOCAL_MAILBOX3_SET0 + 16 * cpu);
+
+ dsb(sy);
+ sev();
+
+ iounmap(intc_base);
+
+ return 0;
+}
+
static const struct smp_operations kona_smp_ops __initconst = {
.smp_prepare_cpus = bcm_smp_prepare_cpus,
.smp_boot_secondary = kona_boot_secondary,
@@ -305,3 +338,8 @@ static const struct smp_operations nsp_smp_ops __initconst = {
.smp_boot_secondary = nsp_boot_secondary,
};
CPU_METHOD_OF_DECLARE(bcm_smp_nsp, "brcm,bcm-nsp-smp", &nsp_smp_ops);
+
+const struct smp_operations bcm2836_smp_ops __initconst = {
+ .smp_boot_secondary = bcm2836_boot_secondary,
+};
+CPU_METHOD_OF_DECLARE(bcm_smp_bcm2836, "brcm,bcm2836-smp", &bcm2836_smp_ops);
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