RealView: Add Cortex-A9 support to the EB board

This patch adds the necessary definitions and Kconfig entries to enable
Cortex-A9 (ARMv7 SMP) tiles on the RealView/EB board.
Signed-off-by: NJon Callan <Jon.Callan@arm.com>
Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>

arch/arm/Kconfig

@@ -782,7 +782,7 @@ config HOTPLUG_CPU
 
 config LOCAL_TIMERS
 	bool "Use local timer interrupts"
-	depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
+	depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || REALVIEW_EB_A9MP)
 	default y
 	help
 	  Enable support for local timers on SMP platforms, rather then the

arch/arm/mach-realview/Kconfig

@@ -7,6 +7,13 @@ config MACH_REALVIEW_EB
 	help
 	  Include support for the ARM(R) RealView Emulation Baseboard platform.
 
+config REALVIEW_EB_A9MP
+	bool "Support Multicore Cortex-A9"
+	depends on MACH_REALVIEW_EB
+	select CPU_V7
+	help
+	  Enable support for the Cortex-A9MPCore tile on the Realview platform.
+
 config REALVIEW_EB_ARM11MP
 	bool "Support ARM11MPCore tile"
 	depends on MACH_REALVIEW_EB

arch/arm/mach-realview/include/mach/board-eb.h

@@ -163,7 +163,7 @@
 #define NR_IRQS			NR_IRQS_EB
 #endif
 
-#if defined(CONFIG_REALVIEW_EB_ARM11MP) \
+#if defined(CONFIG_REALVIEW_EB_ARM11MP) || defined(CONFIG_REALVIEW_EB_A9MP) \
 	&& (!defined(MAX_GIC_NR) || (MAX_GIC_NR < NR_GIC_EB11MP))
 #undef MAX_GIC_NR
 #define MAX_GIC_NR		NR_GIC_EB11MP
@@ -177,6 +177,7 @@
 #define REALVIEW_EB_PROC_ARM9		0x02000000
 #define REALVIEW_EB_PROC_ARM11		0x04000000
 #define REALVIEW_EB_PROC_ARM11MP	0x06000000
+#define REALVIEW_EB_PROC_A9MP		0x0C000000
 
 #define check_eb_proc(proc_type)						\
 	((readl(__io_address(REALVIEW_SYS_PROCID)) & REALVIEW_EB_PROC_MASK)	\
@@ -188,4 +189,10 @@
 #define core_tile_eb11mp()	0
 #endif
 
+#ifdef CONFIG_REALVIEW_EB_A9MP
+#define core_tile_a9mp()	check_eb_proc(REALVIEW_EB_PROC_A9MP)
+#else
+#define core_tile_a9mp()	0
+#endif
+
 #endif	/* __ASM_ARCH_BOARD_EB_H */

arch/arm/mach-realview/platsmp.c

@@ -36,7 +36,8 @@ static unsigned int __init get_core_count(void)
 	unsigned int ncores;
 	void __iomem *scu_base = 0;
 
-	if (machine_is_realview_eb() && core_tile_eb11mp())
+	if (machine_is_realview_eb() &&
+	    (core_tile_eb11mp() || core_tile_a9mp()))
 		scu_base = __io_address(REALVIEW_EB11MP_SCU_BASE);
 	else if (machine_is_realview_pb11mp())
 		scu_base = __io_address(REALVIEW_TC11MP_SCU_BASE);
@@ -58,7 +59,8 @@ static void scu_enable(void)
 	u32 scu_ctrl;
 	void __iomem *scu_base;
 
-	if (machine_is_realview_eb() && core_tile_eb11mp())
+	if (machine_is_realview_eb() &&
+	    (core_tile_eb11mp() || core_tile_a9mp()))
 		scu_base = __io_address(REALVIEW_EB11MP_SCU_BASE);
 	else if (machine_is_realview_pb11mp())
 		scu_base = __io_address(REALVIEW_TC11MP_SCU_BASE);
@@ -88,7 +90,8 @@ void __cpuinit platform_secondary_init(unsigned int cpu)
 	 * core (e.g. timer irq), then they will not have been enabled
 	 * for us: do so
 	 */
-	if (machine_is_realview_eb() && core_tile_eb11mp())
+	if (machine_is_realview_eb() &&
+	    (core_tile_eb11mp() || core_tile_a9mp()))
 		gic_cpu_init(0, __io_address(REALVIEW_EB11MP_GIC_CPU_BASE));
 	else if (machine_is_realview_pb11mp())
 		gic_cpu_init(0, __io_address(REALVIEW_TC11MP_GIC_CPU_BASE));
@@ -232,7 +235,8 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
 	 * dummy (!CONFIG_LOCAL_TIMERS), it was already registers in
 	 * realview_timer_init
 	 */
-	if ((machine_is_realview_eb() && core_tile_eb11mp()) ||
+	if ((machine_is_realview_eb() &&
+	     (core_tile_eb11mp() || core_tile_a9mp())) ||
 	    machine_is_realview_pb11mp())
 		local_timer_setup(cpu);
 #endif

arch/arm/mach-realview/realview_eb.c

@@ -108,7 +108,7 @@ static struct map_desc realview_eb11mp_io_desc[] __initdata = {
 static void __init realview_eb_map_io(void)
 {
 	iotable_init(realview_eb_io_desc, ARRAY_SIZE(realview_eb_io_desc));
-	if (core_tile_eb11mp())
+	if (core_tile_eb11mp() || core_tile_a9mp())
 		iotable_init(realview_eb11mp_io_desc, ARRAY_SIZE(realview_eb11mp_io_desc));
 }
 
@@ -274,7 +274,7 @@ static int eth_device_register(void)
 
 static void __init gic_init_irq(void)
 {
-	if (core_tile_eb11mp()) {
+	if (core_tile_eb11mp() || core_tile_a9mp()) {
 		unsigned int pldctrl;
 
 		/* new irq mode */
@@ -342,7 +342,7 @@ static void __init realview_eb_timer_init(void)
 	timer2_va_base = __io_address(REALVIEW_EB_TIMER2_3_BASE);
 	timer3_va_base = __io_address(REALVIEW_EB_TIMER2_3_BASE) + 0x20;
 
-	if (core_tile_eb11mp()) {
+	if (core_tile_eb11mp() || core_tile_a9mp()) {
 #ifdef CONFIG_LOCAL_TIMERS
 		twd_base_addr = __io_address(REALVIEW_EB11MP_TWD_BASE);
 		twd_size = REALVIEW_EB11MP_TWD_SIZE;
@@ -362,7 +362,7 @@ static void __init realview_eb_init(void)
 {
 	int i;
 
-	if (core_tile_eb11mp()) {
+	if (core_tile_eb11mp() || core_tile_a9mp()) {
 		realview_eb11mp_fixup();
 
 #ifdef CONFIG_CACHE_L2X0

arch/arm/mm/Kconfig

@@ -745,7 +745,7 @@ config CACHE_FEROCEON_L2_WRITETHROUGH
 
 config CACHE_L2X0
 	bool "Enable the L2x0 outer cache controller"
-	depends on REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || MACH_REALVIEW_PB1176
+	depends on REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || MACH_REALVIEW_PB1176 || REALVIEW_EB_A9MP
 	default y
 	select OUTER_CACHE
 	help