Truxton Fulton 59f4e7d572 [PATCH] fix reboot via keyboard controller reset ...

I have a system (Biostar IDEQ210M mini-pc with a VIA chipset) which will
not reboot unless a keyboard is plugged in to it.  I have tried all
combinations of the kernel "reboot=x,y" flags to no avail.  Rebooting by
any method will leave the system in a wedged state (at the "Restarting
system" message).

I finally tracked the problem down to the machine's refusal to fully reboot
unless the keyboard controller status register had bit 2 set.  This is the
"System flag" which when set, indicates successful completion of the
keyboard controller self-test (Basic Assurance Test, BAT).

I suppose that something is trying to protect against sporadic reboots
unless the keyboard controller is in a good state (a keyboard is present),
but I need this machine to be headless.

I found that setting the system flag (via the command byte) before giving
the "pulse reset line" command will allow the reboot to proceed.  The patch
is simple, and I think it should be fine for everybody whether they have
this type of machine or not.  This affects the "hard" reboot (as done when
the kernel boot flags "reboot=c,h" are used).

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2005-09-09 13:57:35 -07:00

..

mach-bigsmp

[PATCH] Do not enforce unique IO_APIC_ID check for xAPIC systems (i386)

2005-06-23 09:45:09 -07:00

mach-default

[PATCH] fix reboot via keyboard controller reset

2005-09-09 13:57:35 -07:00

mach-es7000

[PATCH] ES7000 platform update (i386)

2005-09-05 00:06:10 -07:00

mach-generic

[PATCH] x86: sutomatically enable bigsmp when we have more than 8 CPUs

2005-09-05 00:06:10 -07:00

mach-numaq

[PATCH] Do not enforce unique IO_APIC_ID check for xAPIC systems (i386)

2005-06-23 09:45:09 -07:00

mach-summit

[PATCH] Do not enforce unique IO_APIC_ID check for xAPIC systems (i386)

2005-06-23 09:45:09 -07:00

mach-visws

[PATCH] Make visws compile again

2005-08-07 10:00:38 -07:00

mach-voyager

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

8253pit.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

a.out.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

acpi.h

[ACPI] delete CONFIG_ACPI_PCI

2005-08-25 12:40:44 -04:00

agp.h

[PATCH] i386: inline asm cleanup

2005-09-05 00:06:11 -07:00

apic.h

[PATCH] kexec: x86: resture apic virtual wire mode on shutdown

2005-06-25 16:24:47 -07:00

apicdef.h

[PATCH] x86: sutomatically enable bigsmp when we have more than 8 CPUs

2005-09-05 00:06:10 -07:00

arch_hooks.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

atomic.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

auxvec.h

[PATCH] auxiliary vector cleanups

2005-09-07 16:57:21 -07:00

bitops.h

x86: fix new find_first_bit()

2005-07-29 11:01:22 -04:00

boot.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

bug.h

[PATCH] remove all kernel BUGs

2005-05-01 08:59:01 -07:00

bugs.h

[PATCH] i386: inline asm cleanup

2005-09-05 00:06:11 -07:00

byteorder.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

cache.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

cacheflush.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

checksum.h

[NET]: Fix ipl=>ihl typo in ip_fast_csum

2005-08-29 16:02:48 -07:00

cpu.h

[PATCH] i386 CPU hotplug

2005-06-25 16:24:29 -07:00

cpufeature.h

[PATCH] CPUID bug and inconsistency fix

2005-05-01 08:58:49 -07:00

cputime.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

current.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

debugreg.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

delay.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

desc.h

[PATCH] x86: introduce a write acessor for updating the current LDT

2005-09-05 00:06:13 -07:00

div64.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

dma-mapping.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

dma.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

e820.h

[PATCH] Increase number of e820 entries hard limit from 32 to 128

2005-05-01 08:58:51 -07:00

elf.h

[PATCH] auxiliary vector cleanups

2005-09-07 16:57:21 -07:00

emergency-restart.h

[PATCH] i386: Implement machine_emergency_reboot

2005-07-26 14:35:42 -07:00

errno.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

fcntl.h

[PATCH] Clean up struct flock64 definitions

2005-09-07 16:57:38 -07:00

fixmap.h

[ACPI] delete CONFIG_ACPI_BOOT

2005-08-24 12:08:54 -04:00

floppy.h

[PATCH] make some things static

2005-05-05 16:36:47 -07:00

futex.h

[PATCH] FUTEX_WAKE_OP: pthread_cond_signal() speedup

2005-09-07 16:57:17 -07:00

genapic.h

[PATCH] Do not enforce unique IO_APIC_ID check for xAPIC systems (i386)

2005-06-23 09:45:09 -07:00

hardirq.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

highmem.h

[PATCH] kdump: Routines for copying dump pages

2005-06-25 16:24:53 -07:00

hpet.h

[PATCH] i386: fix hpet for systems that don't support legacy replacement

2005-05-01 08:58:50 -07:00

hw_irq.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

i387.h

x86: use alternative instructions for fnsave/fxsave too

2005-07-22 18:19:20 -04:00

i8253.h

[PATCH] x86: i8253/i8259A lock cleanup

2005-06-30 08:45:10 -07:00

i8259.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

ide.h

[PATCH] ide: sensible probing for PCI systems

2005-06-27 17:36:41 -07:00

io_apic.h

[ACPI] delete CONFIG_ACPI_BOOT

2005-08-24 12:08:54 -04:00

io.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

ioctl.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

ioctls.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

ipc.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

ipcbuf.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

irq.h

[PATCH] cpu state clean after hot remove

2005-06-25 16:24:30 -07:00

ist.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

kdebug.h

[PATCH] x86 NMI: better support for debuggers

2005-09-05 00:06:13 -07:00

kexec.h

[PATCH] Kdump: Export crash notes section address through sysfs

2005-06-25 16:24:51 -07:00

kmap_types.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

kprobes.h

[PATCH] kprobes: function-return probes

2005-06-23 09:45:21 -07:00

ldt.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

linkage.h

[PATCH] i386: fix prevent_tail_call

2005-05-26 16:16:16 -07:00

local.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

math_emu.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

mc146818rtc.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

mca_dma.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

mca.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

mman.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

mmu_context.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

mmu.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

mmx.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

mmzone.h

[PATCH] i386: CONFIG_ACPI_SRAT typo fix

2005-09-09 13:56:44 -07:00

module.h

[PATCH] x86: geode support fixes

2005-05-05 16:36:49 -07:00

mpspec_def.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

mpspec.h

Merge linux-2.6 with linux-acpi-2.6

2005-09-08 01:45:47 -04:00

msgbuf.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

msi.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

msr.h

[PATCH] x86: more asm cleanups

2005-09-05 00:06:12 -07:00

mtrr.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

namei.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

nmi.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

node.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

numaq.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

numnodes.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

page.h

[PATCH] remove hugetlb_clean_stale_pgtable() and fix huge_pte_alloc()

2005-09-05 00:05:46 -07:00

param.h

[PATCH] i386: Selectable Frequency of the Timer Interrupt

2005-06-23 09:45:10 -07:00

parport.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

pci-direct.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

pci.h

Revert PCIBIOS_MIN_IO changes for 2.6.13

2005-08-14 18:21:30 -07:00

percpu.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

pgalloc.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

pgtable-2level-defs.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

pgtable-2level.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

pgtable-3level-defs.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

pgtable-3level.h

[PATCH] i386: use set_pte macros in a couple places where they were missing

2005-09-05 00:06:12 -07:00

pgtable.h

[PATCH] i386: encapsulate copying of pgd entries

2005-09-05 00:06:13 -07:00

poll.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

posix_types.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

processor.h

[PATCH] x86: make IOPL explicit

2005-09-05 00:06:12 -07:00

ptrace.h

[PATCH] x86: privilege cleanup

2005-09-05 00:06:12 -07:00

resource.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

rtc.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

rwlock.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

rwsem.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

scatterlist.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

seccomp.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

sections.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

segment.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

semaphore.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

sembuf.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

serial.h

[PATCH] Serial: Split 8250 port table (part 2)

2005-06-29 18:45:19 +01:00

setup.h

[PATCH] x86: fix EFI memory map parsing

2005-09-05 00:06:09 -07:00

shmbuf.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

shmparam.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

sigcontext.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

siginfo.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

signal.h

[PATCH] asm/signal.h unification

2005-05-04 07:33:15 -07:00

smp.h

[PATCH] i386 boottime for_each_cpu broken

2005-09-05 00:06:13 -07:00

socket.h

[NET]: Introduce SO_{SND,RCV}BUFFORCE socket options

2005-08-29 15:31:35 -07:00

sockios.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

sparsemem.h

[PATCH] sparsemem memory model for i386

2005-06-23 09:45:05 -07:00

spinlock.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

srat.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

stat.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

statfs.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

string.h

Add "memory" clobbers to the x86 inline asm of strncmp and friends

2005-06-24 10:39:17 -07:00

suspend.h

[PATCH] i386: Use loaddebug macro consistently

2005-04-16 15:24:46 -07:00

system.h

[PATCH] x86: make IOPL explicit

2005-09-05 00:06:12 -07:00

termbits.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

termios.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

thread_info.h

[PATCH] UML Support - Ptrace: adds the host SYSEMU support, for UML and general usage

2005-09-05 00:06:20 -07:00

timer.h

[PATCH] add suspend/resume for timer

2005-09-05 00:06:18 -07:00

timex.h

[PATCH] x86: cpu_khz type fix

2005-06-23 09:45:11 -07:00

tlb.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

tlbflush.h

[PATCH] seccomp: tsc disable

2005-06-27 15:11:44 -07:00

topology.h

[PATCH] sched: sched tuning

2005-06-25 16:24:42 -07:00

types.h

[PATCH] sab: consolidate kmem_bufctl_t

2005-09-05 00:05:48 -07:00

uaccess.h

[PATCH] remove verify_area(): remove verify_area() from various uaccess.h headers

2005-09-07 16:57:35 -07:00

ucontext.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

unaligned.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

unistd.h

[PATCH] inotify

2005-07-12 20:38:38 -07:00

user.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

vga.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

vic.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

vm86.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

voyager.h

Linux-2.6.12-rc2

2005-04-16 15:20:36 -07:00

xor.h

[PATCH] i386: inline asm cleanup

2005-09-05 00:06:11 -07:00