--- zzzz-none-000/linux-3.10.107/arch/arm/include/asm/smp_scu.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/arm/include/asm/smp_scu.h	2021-02-04 17:41:59.000000000 +0000
@@ -11,7 +11,7 @@
 
 static inline bool scu_a9_has_base(void)
 {
-	return read_cpuid_part_number() == ARM_CPU_PART_CORTEX_A9;
+	return read_cpuid_part() == ARM_CPU_PART_CORTEX_A9;
 }
 
 static inline unsigned long scu_a9_get_base(void)
@@ -23,10 +23,21 @@
 	return pa;
 }
 
+#ifdef CONFIG_HAVE_ARM_SCU
 unsigned int scu_get_core_count(void __iomem *);
 int scu_power_mode(void __iomem *, unsigned int);
+#else
+static inline unsigned int scu_get_core_count(void __iomem *scu_base)
+{
+	return 0;
+}
+static inline int scu_power_mode(void __iomem *scu_base, unsigned int mode)
+{
+	return -EINVAL;
+}
+#endif
 
-#ifdef CONFIG_SMP
+#if defined(CONFIG_SMP) && defined(CONFIG_HAVE_ARM_SCU)
 void scu_enable(void __iomem *scu_base);
 #else
 static inline void scu_enable(void __iomem *scu_base) {}