86494323fe
The fixing of the watchdog driver makes it generate a NMI so the reboot_fixup can no longer be called from NMI context, instead, override the machine_retart callback with our southrbridge reboot mechanism. Patch by Bernhard Loos. SVN-Revision: 19977
44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
/*
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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
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* as published by the Free Software Foundation; either version 2
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* of 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
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#include <asm/reboot.h>
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#include <asm/io.h>
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static void rdc321x_reset(void)
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{
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unsigned i;
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/* write to southbridge config register 0x41
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enable pci reset on cpu reset, make internal port 0x92 writeable
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and switch port 0x92 to internal */
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outl(0x80003840, 0xCF8);
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i = inl(0xCFC);
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i |= 0x1600;
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outl(i, 0xCFC);
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/* soft reset */
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outb(1, 0x92);
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}
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static int __init rdc_setup_reset(void)
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{
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machine_ops.emergency_restart = rdc321x_reset;
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return 0;
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}
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arch_initcall(rdc_setup_reset);
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