a6f5deb2be
Old code could retry for 10 seconds worst time. Only try it for one second now. Suggested by Yinghai Lu Cc: Yinghai.Lu@amd.com Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
38 lines
710 B
C
38 lines
710 B
C
/*
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* arch/i386/mach-generic/mach_reboot.h
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*
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* Machine specific reboot functions for generic.
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* Split out from reboot.c by Osamu Tomita <tomita@cinet.co.jp>
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*/
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#ifndef _MACH_REBOOT_H
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#define _MACH_REBOOT_H
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static inline void kb_wait(void)
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{
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int i;
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for (i = 0; i < 0x10000; i++)
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if ((inb_p(0x64) & 0x02) == 0)
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break;
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}
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static inline void mach_reboot(void)
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{
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int i;
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for (i = 0; i < 10; i++) {
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kb_wait();
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udelay(50);
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outb(0x60, 0x64); /* write Controller Command Byte */
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udelay(50);
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kb_wait();
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udelay(50);
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outb(0x14, 0x60); /* set "System flag" */
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udelay(50);
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kb_wait();
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udelay(50);
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outb(0xfe, 0x64); /* pulse reset low */
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udelay(50);
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}
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}
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#endif /* !_MACH_REBOOT_H */
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