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arm/xilinx_zynq: Start the second core when an SMP build.

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This commit is contained in:
Chris Johns
2016-08-16 15:49:41 +10:00
parent 13c985c4f4
commit caf2cbd813
2 changed files with 22 additions and 0 deletions
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15
c/src/lib/libbsp/arm/xilinx-zynq/startup/bspsmp.c
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@@ -14,8 +14,23 @@
#include <rtems/score/smpimpl.h>
extern void _start(void);
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.

7
c/src/lib/libbsp/arm/xilinx-zynq/startup/bspstartmmu.c
View File

@@ -22,6 +22,13 @@
BSP_START_DATA_SECTION static const arm_cp15_start_section_config
zynq_mmu_config_table[] = {
ARMV7_CP15_START_DEFAULT_SECTIONS,
#if defined(RTEMS_SMP)
{
.begin = 0xffff0000U,
.end = 0xffffffffU,
.flags = ARMV7_MMU_DEVICE
},
#endif
{
.begin = 0xe0000000U,
.end = 0xe0200000U,