2 * Copyright (C) 2007 Wolfgang Denk <wd@denx.de>
4 * See file CREDITS for list of people who contributed to this
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of
10 * the License, or (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
26 #if defined(CONFIG_440EP) || \
27 defined(CONFIG_440EPX)
30 #include <asm/processor.h>
35 if (mfspr(ccr0) & CCR0_DAPUIB)
36 return 0; /* Disabled */
38 return 1; /* Enabled */
42 void fpu_disable(void)
44 mtspr(ccr0, mfspr(ccr0) | CCR0_DAPUIB);
45 mtmsr(mfmsr() & ~MSR_FP);
51 mtspr(ccr0, mfspr(ccr0) & ~CCR0_DAPUIB);
52 mtmsr(mfmsr() | MSR_FP);