79 lines
1.9 KiB
C
79 lines
1.9 KiB
C
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/*
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* (C) Copyright 2003, Psyent Corporation <www.psyent.com>
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* Scott McNutt <smcnutt@psyent.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <nios.h>
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int checkcpu (void)
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{
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unsigned val;
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unsigned rev_major;
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unsigned rev_minor;
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short nregs, hi_limit, lo_limit;
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/* Get cpu version info */
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val = rdctl (CTL_CPU_ID);
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printf ("CPU: ");
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printf ("%s", (val & 0x00008000) ? "Nios-16 " : "Nios-32 ");
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rev_major = (val>>12) & 0x07;
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rev_minor = (val>>4) & 0x0ff;
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printf ("Rev. %d.%d (0x%04x)", rev_major, rev_minor,
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val & 0xffff);
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if (rev_major == 0x08)
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printf (" [OpenCore (R) Plus]");
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printf ("\n");
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/* Check register file */
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val = rdctl (CTL_WVALID);
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lo_limit = val & 0x01f;
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hi_limit = (val>>5) & 0x1f;
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nregs = (hi_limit + 2) * 16;
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printf ("Reg file size: %d LO_LIMIT/HI_LIMIT: %d/%d\n",
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nregs, lo_limit, hi_limit);
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return (0);
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}
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int do_reset (void)
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{
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/* trap 0 does the trick ... at least with the OCI debug
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* present -- haven't tested without it yet (stm).
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*/
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disable_interrupts ();
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ipri (1);
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asm volatile ("trap 0\n");
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/* No return ;-) */
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return(0);
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}
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#if defined(CONFIG_WATCHDOG)
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void watchdog_reset (void)
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{
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}
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#endif /* CONFIG_WATCHDOG */
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