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author | Thomas Gleixner <tglx@linutronix.de> | 2007-10-11 11:20:03 +0200 |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2007-10-11 11:20:03 +0200 |
commit | 96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42 (patch) | |
tree | d947a467aa2da3140279617bc4b9b101640d7bf4 /include/asm-x86/mach-default/mach_reboot.h | |
parent | 27bd0c955648646abf2a353a8371d28c37bcd982 (diff) | |
download | kernel-crypto-96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42.tar.gz kernel-crypto-96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42.tar.xz kernel-crypto-96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42.zip |
i386/x86_64: move headers to include/asm-x86
Move the headers to include/asm-x86 and fixup the
header install make rules
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/mach-default/mach_reboot.h')
-rw-r--r-- | include/asm-x86/mach-default/mach_reboot.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/include/asm-x86/mach-default/mach_reboot.h b/include/asm-x86/mach-default/mach_reboot.h new file mode 100644 index 00000000000..e23fd9fbebb --- /dev/null +++ b/include/asm-x86/mach-default/mach_reboot.h @@ -0,0 +1,61 @@ +/* + * arch/i386/mach-generic/mach_reboot.h + * + * Machine specific reboot functions for generic. + * Split out from reboot.c by Osamu Tomita <tomita@cinet.co.jp> + */ +#ifndef _MACH_REBOOT_H +#define _MACH_REBOOT_H + +static inline void kb_wait(void) +{ + int i; + + for (i = 0; i < 0x10000; i++) + if ((inb_p(0x64) & 0x02) == 0) + break; +} + +static inline void mach_reboot(void) +{ + int i; + + /* old method, works on most machines */ + for (i = 0; i < 10; i++) { + kb_wait(); + udelay(50); + outb(0xfe, 0x64); /* pulse reset low */ + udelay(50); + } + + /* New method: sets the "System flag" which, when set, indicates + * successful completion of the keyboard controller self-test (Basic + * Assurance Test, BAT). This is needed for some machines with no + * keyboard plugged in. This read-modify-write sequence sets only the + * system flag + */ + for (i = 0; i < 10; i++) { + int cmd; + + outb(0x20, 0x64); /* read Controller Command Byte */ + udelay(50); + kb_wait(); + udelay(50); + cmd = inb(0x60); + udelay(50); + kb_wait(); + udelay(50); + outb(0x60, 0x64); /* write Controller Command Byte */ + udelay(50); + kb_wait(); + udelay(50); + outb(cmd | 0x04, 0x60); /* set "System flag" */ + udelay(50); + kb_wait(); + udelay(50); + outb(0xfe, 0x64); /* pulse reset low */ + udelay(50); + } +} + +#endif /* !_MACH_REBOOT_H */ |