sunxi: simplify ACTLR.SMP bit set #ifdef

Instead of enumerating all SoC families that need that bit set, let's
just express this more clearly: The SMP bits needs to be set on
SMP capable ARMv7 CPUs. It's much easier in Kconfig to express it the
other way round, so we use ! CPU_IS_UP and ! ARM64.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>

arch/arm/Kconfig

@@ -214,6 +214,10 @@ config ENABLE_ARM_SOC_BOOT0_HOOK
 	  ARM_SOC_BOOT0_HOOK which contains the required assembler
 	  preprocessor code.
 
+config ARM_CORTEX_CPU_IS_UP
+	bool
+	default n
+
 config USE_ARCH_MEMCPY
 	bool "Use an assembly optimized implementation of memcpy"
 	default y

arch/arm/mach-sunxi/board.c

@@ -180,10 +180,7 @@ void s_init(void)
 	/* No H3 BSP, boot0 seems to not modify SUNXI_SRAMC_BASE + 0x44 */
 #endif
 
-#if defined CONFIG_MACH_SUN6I || \
-    defined CONFIG_MACH_SUN7I || \
-    defined CONFIG_MACH_SUN8I || \
-    defined CONFIG_MACH_SUN9I
+#if !defined(CONFIG_ARM_CORTEX_CPU_IS_UP) && !defined(CONFIG_ARM64)
 	/* Enable SMP mode for CPU0, by setting bit 6 of Auxiliary Ctl reg */
 	asm volatile(
 		"mrc p15, 0, r0, c1, c0, 1\n"

board/sunxi/Kconfig

@@ -50,12 +50,14 @@ choice
 config MACH_SUN4I
 	bool "sun4i (Allwinner A10)"
 	select CPU_V7
+	select ARM_CORTEX_CPU_IS_UP
 	select SUNXI_GEN_SUN4I
 	select SUPPORT_SPL
 
 config MACH_SUN5I
 	bool "sun5i (Allwinner A13)"
 	select CPU_V7
+	select ARM_CORTEX_CPU_IS_UP
 	select SUNXI_GEN_SUN4I
 	select SUPPORT_SPL