x86/intel-mid: Delay initialization of APB timer

[firefly-linux-kernel-4.4.55.git] / arch / x86 / platform / intel-mid / intel-mid.c

diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index 3005f0c89f2ecfbcc817c7e379c97586d5524e7f..01d54ea766c16539d001da113320c56ee8eac1f8 100644 (file)
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -81,26 +81,34 @@ static unsigned long __init intel_mid_calibrate_tsc(void)
        return 0;
 }
 
+static void __init intel_mid_setup_bp_timer(void)
+{
+       apbt_time_init();
+       setup_boot_APIC_clock();
+}
+
 static void __init intel_mid_time_init(void)
 {
        sfi_table_parse(SFI_SIG_MTMR, NULL, NULL, sfi_parse_mtmr);
+
        switch (intel_mid_timer_options) {
        case INTEL_MID_TIMER_APBT_ONLY:
                break;
        case INTEL_MID_TIMER_LAPIC_APBT:
-               x86_init.timers.setup_percpu_clockev = setup_boot_APIC_clock;
+               /* Use apbt and local apic */
+               x86_init.timers.setup_percpu_clockev = intel_mid_setup_bp_timer;
                x86_cpuinit.setup_percpu_clockev = setup_secondary_APIC_clock;
-               break;
+               return;
        default:
                if (!boot_cpu_has(X86_FEATURE_ARAT))
                        break;
+               /* Lapic only, no apbt */
                x86_init.timers.setup_percpu_clockev = setup_boot_APIC_clock;
                x86_cpuinit.setup_percpu_clockev = setup_secondary_APIC_clock;
                return;
        }
-       /* we need at least one APB timer */
-       pre_init_apic_IRQ0();
-       apbt_time_init();
+
+       x86_init.timers.setup_percpu_clockev = apbt_time_init;
 }
 
 static void intel_mid_arch_setup(void)