ppcv_cpuconfig_7450.c

qnx powerpc MPC8245的 BSP源文件

/*
 * $QNXLicenseC: 
 * Copyright 2007, QNX Software Systems.  
 *  
 * Licensed under the Apache License, Version 2.0 (the "License"). You  
 * may not reproduce, modify or distribute this software except in  
 * compliance with the License. You may obtain a copy of the License  
 * at: http://www.apache.org/licenses/LICENSE-2.0  
 *  
 * Unless required by applicable law or agreed to in writing, software  
 * distributed under the License is distributed on an "AS IS" basis,  
 * WITHOUT WARRANTIES OF ANY KIND, either express or implied. 
 * 
 * This file may contain contributions from others, either as  
 * contributors under the License or as licensors under other terms.   
 * Please review this entire file for other proprietary rights or license  
 * notices, as well as the QNX Development Suite License Guide at  
 * http://licensing.qnx.com/license-guide/ for other information. 
 * $ 
 */

#include "startup.h"

void
ppcv_cpuconfig2_7450(int cpu) {
	unsigned	hid0;
	unsigned	hid1;
   unsigned rev;

	ppcv_cpuconfig2_600(cpu);

	hid0 = get_spr(PPC603_SPR_HID0);
	hid0 |= 0x04100000;

   switch (PPC_GET_FAM_MEMBER(get_pvr())) {
      case PPC_7450:
         rev = PPC_GET_REVISION(get_pvr());
         if(rev < 0x210) {
            // Rev. 2.0 - no SGE, BTIC
            hid0 |= PPC700_SPR_HID0_BHT | PPC700_SPR_HID0_ABE;
         } else if (rev == 0x210) {
            // Rev. 2.1 -- no SGE
            hid0 |= PPC700_SPR_HID0_BHT | PPC700_SPR_HID0_BTIC | PPC700_SPR_HID0_ABE | PPC7450_SPR_HID0_LRSTK;
         } else {
            // Rev. 2.3 and above -- everything should work
            hid0 |= PPC700_SPR_HID0_SGE | PPC700_SPR_HID0_BHT | PPC700_SPR_HID0_BTIC | PPC700_SPR_HID0_ABE | PPC7450_SPR_HID0_LRSTK;
         }
         break;
      case PPC_7457: // This handles PPC_7447 also since they are the same value
         rev = PPC_GET_REVISION(get_pvr());
         if(rev < 0x120) {
            // Rev. 1.2 - no SGE, BTIC
            hid0 |= PPC700_SPR_HID0_BHT |PPC700_SPR_HID0_ABE |PPC7450_SPR_HID0_LRSTK;
         } else {
            // Rev above -- everything should work
            hid0 |= PPC700_SPR_HID0_SGE | PPC700_SPR_HID0_BHT | PPC700_SPR_HID0_BTIC | PPC700_SPR_HID0_ABE | PPC7450_SPR_HID0_LRSTK;
         }
         break;
      case PPC_7447:
         hid0 |= PPC700_SPR_HID0_SGE | PPC700_SPR_HID0_BHT | PPC700_SPR_HID0_BTIC | PPC700_SPR_HID0_ABE | PPC7450_SPR_HID0_LRSTK;
         break;
      default:
         hid0 |= PPC700_SPR_HID0_SGE | PPC700_SPR_HID0_BHT | PPC700_SPR_HID0_ABE | PPC7450_SPR_HID0_LRSTK;
         break;
   }

	hid0 |= (PPC700_SPR_HID0_SBCLK | PPC700_SPR_HID0_DPM);
	hid0 &= ~PPC700_SPR_HID0_SPD;
	set_spr(PPC603_SPR_HID0, hid0);

	// Turn on cache ops broadcasts and sync broadcasts
	hid1 = get_spr(PPC603_SPR_HID1);
	hid1 |= PPC7450_SPR_HID1_SYNCBE|PPC7450_SPR_HID1_ABE;
	set_spr(PPC603_SPR_HID1, hid1);
}