#include "prm44xx.h"
#include "prm-regbits-44xx.h"
-#ifdef CONFIG_SMP
+static void __iomem *sar_base;
+
+#if defined(CONFIG_PM) && defined(CONFIG_SMP)
struct omap4_cpu_pm_info {
struct powerdomain *pwrdm;
static DEFINE_PER_CPU(struct omap4_cpu_pm_info, omap4_pm_info);
static struct powerdomain *mpuss_pd;
-static void __iomem *sar_base;
static u32 cpu_context_offset;
static int default_finish_suspend(unsigned long cpu_state)
return -ENODEV;
}
- if (cpu_is_omap44xx())
- sar_base = omap4_get_sar_ram_base();
-
/* Initilaise per CPU PM information */
pm_info = &per_cpu(omap4_pm_info, 0x0);
if (sar_base) {
}
#endif
+
+/*
+ * For kexec, we must set CPU1_WAKEUP_NS_PA_ADDR to point to
+ * current kernel's secondary_startup() early before
+ * clockdomains_init(). Otherwise clockdomain_init() can
+ * wake CPU1 and cause a hang.
+ */
+void __init omap4_mpuss_early_init(void)
+{
+ unsigned long startup_pa;
+
+ if (!cpu_is_omap44xx())
+ return;
+
+ sar_base = omap4_get_sar_ram_base();
+
+ if (cpu_is_omap443x())
+ startup_pa = virt_to_phys(omap4_secondary_startup);
+ else
+ startup_pa = virt_to_phys(omap4460_secondary_startup);
+
+ writel_relaxed(startup_pa, sar_base + CPU1_WAKEUP_NS_PA_ADDR_OFFSET);
+}