sdk-debuger-jlink/Samples/JLink/Scripts/Renesas_RZG1M_ConnectCore1.JLinkScript

/*********************************************************************
*                    SEGGER Microcontroller GmbH                     *
*        Solutions for real time microcontroller applications        *
**********************************************************************
*                                                                    *
*            (c) 1995 - 2018 SEGGER Microcontroller GmbH             *
*                                                                    *
* Internet: www.segger.com Support: support@segger.com               *
*                                                                    *
**********************************************************************
----------------------------------------------------------------------
Purpose : 
---------------------------END-OF-HEADER------------------------------
*/

/*********************************************************************
*
*       ResetTarget
*/
void ResetTarget(void) {
	int v;
  int Speed;
  int Ctrl;

  Report("******************************************************");
  Report("J-Link script: ResetTarget()");
  Report("******************************************************");
  Speed = JTAG_Speed;
  JTAG_Speed = 100;
  JTAG_WriteClocks(1);

  //
  // Select APB-AP and prepare control register
  //
  JLINK_CORESIGHT_WriteDP(2, (1 << 24) | (0 << 4));  // Select AP[1], bank 0
  Ctrl =  0
       | (2 << 0)    // AP-access size. Fixed to 2: 32-bit
       | (1 << 4)    // Auto increment TAR after read/write access. Increment is NOT performed on access to banked data registers 0-3.
       | (1 << 31)   // Enable software access to the Debug APB bus.
       ;
  JLINK_CORESIGHT_WriteAP(0, Ctrl);
  //
  // Perform some other init steps which are required to get full control of the debug logic
  //
  JLINK_CORESIGHT_WriteAP(1, 0x800B2000 + 0xFB0);
  JLINK_CORESIGHT_WriteAP(3, 0xC5ACCE55);
  JLINK_CORESIGHT_WriteAP(1, 0x800B2000 + 0x310);
  JLINK_CORESIGHT_WriteAP(3, 1);
  JLINK_CORESIGHT_WriteAP(1, 0x800B2000 + 0x314);
  JLINK_CORESIGHT_ReadAP(3);

  v = JLINK_CORESIGHT_ReadDP(3);
  //
  // Read & modify DSCR in order to enable debug halt mode
  //
  JLINK_CORESIGHT_WriteAP(1, 0x800B2000 + 0x88);
  JLINK_CORESIGHT_ReadAP(3);
  v = JLINK_CORESIGHT_ReadDP(3);
  v |= (1 << 14);
  JLINK_CORESIGHT_WriteAP(1, 0x800B2000 + 0x88);   // Enable debug halt mode by writing the DSCR
  JLINK_CORESIGHT_WriteAP(3, v);
  //
  // Halt CPU by writing the halt request bit in the DRCR
  //
  JLINK_CORESIGHT_WriteAP(1, 0x800B2000 + 0x90);
  JLINK_CORESIGHT_WriteAP(3, 1);
  JTAG_WriteClocks(1);
  JTAG_Speed = Speed;
}

/*********************************************************************
*
*       InitTarget
*
*  Notes
*    (1) High-level functions like MEM_xxx functions must not be used here.
*        They may only be used in SetupTarget() which is called later in the connect process.
*/
void InitTarget(void) {
  Report("******************************************************");
  Report("J-Link script: RZ/G1M (Cortex-A15 CPU1) J-Link script");
  Report("******************************************************");
  if (MAIN_ActiveTIF == JLINK_TIF_JTAG) {
    JLINK_CORESIGHT_Configure("IRPre=0;DRPre=0;IRPost=0;DRPost=0;IRLenDevice=4");
    JTAG_AllowTAPReset = 1;           // J-Link is allowed to use a TAP reset for JTAG-chain auto-detection
    JTAG_SetDeviceId(0, 0x4BA00477);  // 4-bits IRLen
  } else {
    JLINK_CORESIGHT_Configure("");    // Perform SWD init sequence
  }
  //
  // For the RZ/G1M there is 1 JTAG/SWD device
  // For Cortex-A devices: Each core has its own set of debug registers in the APB-AP memory map
  // To connect to a specific core, just tell J-Link which debug registers to use
  // NOTE: The selected core *must* be powered and enabled when leaving this function (InitTarget())
  //
  // For RZ/G1M:
  // 0x800B0000: Debug register Cortex-A15 core0
  // 0x800B2000: Debug register Cortex-A15 core1
  //
  CORESIGHT_CoreBaseAddr = 0x800B2000;
  CORESIGHT_AddAP(0, CORESIGHT_CUSTOM_AP);
  CORESIGHT_AddAP(1, CORESIGHT_APB_AP);
  CORESIGHT_IndexAPBAPToUse = 1;
  CPU = CORTEX_A15;

  ResetTarget();  // Reset and Halt Core
}