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: Jon Callan <Jon.Callan@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

4 files changed, 27 insertions, 9 deletions

diff --git a/arch/arm/mach-realview/Kconfig b/arch/arm/mach-realview/Kconfig
index 8032f234c143..eebf7ec9a156 100644
--- a/arch/arm/mach-realview/Kconfig
+++ b/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
diff --git a/arch/arm/mach-realview/include/mach/board-eb.h b/arch/arm/mach-realview/include/mach/board-eb.h
index 8d699fd324d0..e1a6df29eaf6 100644
--- a/arch/arm/mach-realview/include/mach/board-eb.h
+++ b/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 */
diff --git a/arch/arm/mach-realview/platsmp.c b/arch/arm/mach-realview/platsmp.c
index e102aeb0f76e..8dcb085dca4e 100644
--- a/arch/arm/mach-realview/platsmp.c
+++ b/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
diff --git a/arch/arm/mach-realview/realview_eb.c b/arch/arm/mach-realview/realview_eb.c
index f6e04edf922d..3adb53562985 100644
--- a/arch/arm/mach-realview/realview_eb.c
+++ b/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