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Diffstat (limited to 'arch/arm/mach-hisi/platsmp.c')
-rw-r--r--arch/arm/mach-hisi/platsmp.c53
1 files changed, 50 insertions, 3 deletions
diff --git a/arch/arm/mach-hisi/platsmp.c b/arch/arm/mach-hisi/platsmp.c
index 471f1ee..575dd82 100644
--- a/arch/arm/mach-hisi/platsmp.c
+++ b/arch/arm/mach-hisi/platsmp.c
@@ -17,6 +17,8 @@
#include "core.h"
+#define HIX5HD2_BOOT_ADDRESS 0xffff0000
+
static void __iomem *ctrl_base;
void hi3xxx_set_cpu_jump(int cpu, void *jump_addr)
@@ -35,11 +37,9 @@ int hi3xxx_get_cpu_jump(int cpu)
return readl_relaxed(ctrl_base + ((cpu - 1) << 2));
}
-static void __init hi3xxx_smp_prepare_cpus(unsigned int max_cpus)
+static void __init hisi_enable_scu_a9(void)
{
- struct device_node *np = NULL;
unsigned long base = 0;
- u32 offset = 0;
void __iomem *scu_base = NULL;
if (scu_a9_has_base()) {
@@ -52,6 +52,14 @@ static void __init hi3xxx_smp_prepare_cpus(unsigned int max_cpus)
scu_enable(scu_base);
iounmap(scu_base);
}
+}
+
+static void __init hi3xxx_smp_prepare_cpus(unsigned int max_cpus)
+{
+ struct device_node *np = NULL;
+ u32 offset = 0;
+
+ hisi_enable_scu_a9();
if (!ctrl_base) {
np = of_find_compatible_node(NULL, NULL, "hisilicon,sysctrl");
if (!np) {
@@ -87,3 +95,42 @@ struct smp_operations hi3xxx_smp_ops __initdata = {
.cpu_kill = hi3xxx_cpu_kill,
#endif
};
+
+static void __init hix5hd2_smp_prepare_cpus(unsigned int max_cpus)
+{
+ hisi_enable_scu_a9();
+}
+
+void hix5hd2_set_scu_boot_addr(phys_addr_t start_addr, phys_addr_t jump_addr)
+{
+ void __iomem *virt;
+
+ virt = ioremap(start_addr, PAGE_SIZE);
+
+ writel_relaxed(0xe51ff004, virt); /* ldr pc, [rc, #-4] */
+ writel_relaxed(jump_addr, virt + 4); /* pc jump phy address */
+ iounmap(virt);
+}
+
+static int hix5hd2_boot_secondary(unsigned int cpu, struct task_struct *idle)
+{
+ phys_addr_t jumpaddr;
+
+ jumpaddr = virt_to_phys(hix5hd2_secondary_startup);
+ hix5hd2_set_scu_boot_addr(HIX5HD2_BOOT_ADDRESS, jumpaddr);
+ hix5hd2_set_cpu(cpu, true);
+ arch_send_wakeup_ipi_mask(cpumask_of(cpu));
+ return 0;
+}
+
+
+struct smp_operations hix5hd2_smp_ops __initdata = {
+ .smp_prepare_cpus = hix5hd2_smp_prepare_cpus,
+ .smp_boot_secondary = hix5hd2_boot_secondary,
+#ifdef CONFIG_HOTPLUG_CPU
+ .cpu_die = hix5hd2_cpu_die,
+#endif
+};
+
+CPU_METHOD_OF_DECLARE(hi3xxx_smp, "hisilicon,hi3620-smp", &hi3xxx_smp_ops);
+CPU_METHOD_OF_DECLARE(hix5hd2_smp, "hisilicon,hix5hd2-smp", &hix5hd2_smp_ops);
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