Multi-core CPU Start method on SMP-"zynq7k CPU2 (ARM1) Start method



zynq7k CPU2 (ARM1) Start-up method
zynq7k on the "SEv" command to reset the start CPU2, before sending the SEV command to the CPU2 start address written to the specific address of OCM.

Assume that the address of the DDR used by CPU1 is (0X00100000~0X001FFFFF). The address range used by CPU1 is (0X00200000~0X002FFFFF)

void Wakeuparm (void)
{

#define SEV () __asm__ ("SEv")

#define CPU1STARTADR 0XFFFFFFF0

Print ("Cpu0:writing startaddress for cpu1\n\r");
Xil_out32 (Cpu1startadr, 0x00200000);
DMB (); Waits until write has finished

Print ("cpu0:sending the SEV to wake Up cpu1\n\r");
SEv ();

}