diff options
author | raj <raj@FreeBSD.org> | 2008-04-26 17:57:29 +0000 |
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committer | raj <raj@FreeBSD.org> | 2008-04-26 17:57:29 +0000 |
commit | c57f5d712ebd12c9cc806fb3fc4fdcf798d91781 (patch) | |
tree | b40144f2e602a651217c976aa6ef991b14858b64 /sys/powerpc/mpc85xx/mpc85xx.c | |
parent | a681868ea5dbad90ea028a90173c94ddb1059477 (diff) | |
download | FreeBSD-src-c57f5d712ebd12c9cc806fb3fc4fdcf798d91781.zip FreeBSD-src-c57f5d712ebd12c9cc806fb3fc4fdcf798d91781.tar.gz |
Introduce a dedicated file for MPC85xx-specific routines. Move cpu_reset()
there, as it's not relevant to Book-E specification, but is an implementation
detail, directly dependent on the given SoC version.
Diffstat (limited to 'sys/powerpc/mpc85xx/mpc85xx.c')
-rw-r--r-- | sys/powerpc/mpc85xx/mpc85xx.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/sys/powerpc/mpc85xx/mpc85xx.c b/sys/powerpc/mpc85xx/mpc85xx.c new file mode 100644 index 0000000..d5831ee --- /dev/null +++ b/sys/powerpc/mpc85xx/mpc85xx.c @@ -0,0 +1,59 @@ +/*- + * Copyright (C) 2008 Semihalf, Rafal Jaworowski + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the author nor the names of contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/systm.h> + +#include <machine/cpu.h> +#include <machine/cpufunc.h> +#include <machine/spr.h> + +/* + * MPC85xx system specific routines + */ + +void +cpu_reset() +{ + + /* Clear DBCR0, disables debug interrupts and events. */ + mtspr(SPR_DBCR0, 0); + __asm volatile("isync"); + + /* Enable Debug Interrupts in MSR. */ + mtmsr(mfmsr() | PSL_DE); + + /* Enable debug interrupts and issue reset. */ + mtspr(SPR_DBCR0, mfspr(SPR_DBCR0) | DBCR0_IDM | DBCR0_RST_SYSTEM); + printf("Reset failed...\n"); + while (1); +} |