mpc8xxrev.c

来自「eCos操作系统源码」· C语言 代码 · 共 79 行

//==========================================================================
//
//        mpc8xxrev.c
//
//        MPC8xx Revision Identification
//
//==========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
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// or inline functions from this file, or you compile this file and link it
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// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):     jskov
// Contributors:  jskov
// Date:          2000-02-23
// Description:   Print MPC8xx revision numbers
//####DESCRIPTIONEND####

#include <cyg/infra/testcase.h>
#include <stdio.h>
#include <cyg/hal/ppc_regs.h>
#include <cyg/hal/hal_io.h>
#include <cyg/infra/diag.h>

int
main( void )
{
    cyg_uint32 pvr, part_mask;
    cyg_uint16 rev_num;

    CYG_TEST_INIT();

    asm volatile ("mfspr %0, 287;": "=r" (pvr));
    diag_printf("Processor PVR:         0x%08x\n", pvr);

    asm volatile ("mfspr %0, 638;": "=r" (part_mask));
    diag_printf("Processor IMMR[16:31]: 0x%04x\n", (part_mask & 0xffff));

    HAL_READ_UINT16(CYGARC_REG_REV_NUM, rev_num);
    diag_printf("Processor REV_NUM:     0x%04x\n", rev_num);


    diag_printf("\nSee http://www.motorola.com/SPS/RISC/netcomm/ for erratas.\n");
    diag_printf("Look for MPC8xx Versions and Masks in the Publications Library\n");

    CYG_TEST_PASS_FINISH("mpc8xx revision dump");
}
// EOF mpc8xxrev.c