Hi,
I have a problem to reset cpu1 from cpu0,
I use standalode bsp v6, and here is the code I use in application project of cpu0 to reset cpu1:
#define A9_CPU_RST_CTRL (XSLCR_BASEADDR + 0x244)
#define A9_RST1_MASK 0x00000002
#define A9_CLKSTOP1_MASK 0x00000020
#define XSLCR_LOCK_ADDR (XSLCR_BASEADDR + 0x4)
#define XSLCR_LOCK_CODE 0x0000767B
#define CPU1_CATCH 0xFFFFFFF0
Xil_Out32(XSLCR_UNLOCK_ADDR, XSLCR_UNLOCK_CODE);
RegVal = Xil_In32(A9_CPU_RST_CTRL);
RegVal |= A9_RST1_MASK;
Xil_Out32(A9_CPU_RST_CTRL, RegVal);
RegVal |= A9_CLKSTOP1_MASK;
Xil_Out32(A9_CPU_RST_CTRL, RegVal);
RegVal &= ~A9_RST1_MASK;
Xil_Out32(A9_CPU_RST_CTRL, RegVal);
RegVal &= ~A9_CLKSTOP1_MASK;
Xil_Out32(A9_CPU_RST_CTRL, RegVal);
Xil_Out32(XSLCR_LOCK_ADDR, XSLCR_LOCK_CODE);
Xil_Out32(CPU1_CATCH, APP_CPU1_ADDR);
dmb();
sev();
After trying this part of code, cpu1 stuck at wfe loop as follows:
00000130: and r1, r1, #15
00000134: cmp r1, #0
00000138: beq +60 ; addr=0x0000017c
0000013c: wfe
00000140: b -12 ; addr=0x0000013c
I would really appreciate if anybody can help me with the instruction to reset cpu1.
Thanks,
-- raha
