summaryrefslogtreecommitdiffstats
path: root/bsps/arm/xilinx-zynq/start/bspsmp.c
diff options
context:
space:
mode:
Diffstat (limited to 'bsps/arm/xilinx-zynq/start/bspsmp.c')
-rw-r--r--bsps/arm/xilinx-zynq/start/bspsmp.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/bsps/arm/xilinx-zynq/start/bspsmp.c b/bsps/arm/xilinx-zynq/start/bspsmp.c
new file mode 100644
index 0000000000..b516823243
--- /dev/null
+++ b/bsps/arm/xilinx-zynq/start/bspsmp.c
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2014 embedded brains GmbH. All rights reserved.
+ *
+ * embedded brains GmbH
+ * Dornierstr. 4
+ * 82178 Puchheim
+ * Germany
+ * <info@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <rtems/score/smpimpl.h>
+
+#include <bsp/start.h>
+
+bool _CPU_SMP_Start_processor(uint32_t cpu_index)
+{
+ /*
+ * Enable the second CPU.
+ */
+ if (cpu_index != 0) {
+ volatile uint32_t* const kick_address = (uint32_t*) 0xfffffff0UL;
+ _ARM_Data_synchronization_barrier();
+ _ARM_Instruction_synchronization_barrier();
+ *kick_address = (uint32_t) _start;
+ _ARM_Data_synchronization_barrier();
+ _ARM_Instruction_synchronization_barrier();
+ _ARM_Send_event();
+ }
+
+ /*
+ * Wait for secondary processor to complete its basic initialization so that
+ * we can enable the unified L2 cache.
+ */
+ return _Per_CPU_State_wait_for_non_initial_state(cpu_index, 0);
+}