Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Declaring emulpc and contpc as "unsigned long" can get rid of some casts.
This also get rid of some sparse warnings.
Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Kill workarounds for very early chip (perhaps pre-TX4927A).
Signed-off-by: NAtsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Noticed by Robert P. J. Day (rpjday@mindspring.com).
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Noticed by Robert P. J. Day (rpjday@mindspring.com).
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Noticed by Robert P. J. Day (rpjday@mindspring.com).
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

Noticed by Robert P. J. Day (rpjday@mindspring.com).
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

The RTC library code contains everything necessary to set the
system time from the RTC; for similar reasons as the previous
commit, it's far better to let the RTC library code sort this
out rather than implement something which might not be
appropriate for everyone.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Remove the RTC management over a suspend/resume cycle.  As per the
corresponding PXA patch, the RTC library code handles updating
system time on resume.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

This removes the old i386 setup code.  This is done as a separate patch
to avoid breaking git bisect as some of the i386 code was also used by
the old x86-64 code.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This unifies arch/*/boot (except arch/*/boot/compressed) between
i386 and x86-64, and uses the new x86 setup code for x86-64 as well.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This patch hooks the new x86 setup code into the Makefile machinery.  It
also adapts boot/tools/build.c to a two-file (as opposed to three-file)
universe, and simplifies it substantially.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Linker script to define the layout of the new x86 setup code.
Includes assert for size overflow and a misaligned setup header.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The assembly header and initialization code, and the main() routine.
main.c also contains some miscellaneous very short routines.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This is the code which actually does the switch to protected mode,
including all preparation.  It is also responsible for invoking the
boot loader hooks, if present.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Video mode probing for the new x86 setup code.  This code breaks down
different drivers into modules.  This code deliberately drops support
for a lot of the vendor-specific mode probing present in the assembly
version, since a lot of those probes have been found to be stale in
current versions of those chips -- frequently, support for those modes
have been dropped from recent video BIOSes due to space constraints,
but the video BIOS signatures are still the same.

However, additional drivers should be extremely straightforward to plug
in, if desirable.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Voyager support for the new x86 setup code.  This implements the same
functionality as the assembly version.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Probe memory (INT 15h: E820, E801, 88).
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

MCA probing support for the new x86 setup code.  This implements the
same functionality as the assembly version.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Probe EDD and MBR signatures, in order to make it easier to map
physical hard drives to BIOS drives.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Verify that the CPU has enough features to run the kernel.  This may
entail enabling features on some CPUs.

By doing this in the setup code we can be guaranteed to still be able to
write to the console through the BIOS.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Module which only includes the kernel version string.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This implements writing text to the console, including printf().
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Simple command-line parser which allows us to access the kernel command
line from the setup code.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

APM probing code for the new x86 setup code.  This implements the
same functionality as the assembly version.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

A20 handling code for the new x86 setup code.  This implements the same
algorithms as the assembly version.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

strcmp(), memcpy(), memset(), as well as routines to copy to and from
other segments (as pointed to by fs and gs).
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

A simple collection of bitops for the new x86 setup code.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Top header file for the new x86 setup code.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

gcc for i386 can be used with the assembly prefix ".code16gcc" to generate
16-bit (real-mode) code.  This header file provides the assembly prefix.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add CONFIG_PHYSICAL_ALIGN (currently as a hardcoded constant) to provide
consistency with i386.  This value is manifest in the bzImage header.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Make struct boot_params a real structure, and remove the handling of
some obsolete fields, in particular hd*_info, which was only used by
the ST-506 driver, and likely to be wrong for that driver on any
modern BIOS.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Make definitions for struct e820entry and struct e820map
consistent between i386 and x86-64.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The relocatable kernel code needs a scratch field for the decompressor
to determine its own location.  It was using a location inside
struct screen_info; reserve a free location and document it as scratch
instead.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Some Intel features are spread around in different CPUID leafs like 0x5,
0x6 and 0xA.  Make this feature detection code common across i386 and
x86_64.

Display Intel Dynamic Acceleration feature in /proc/cpuinfo. This feature
will be enabled automatically by current acpi-cpufreq driver.

Refer to Intel Software Developer's Manual for more details about the feature.

Thanks to hpa (H Peter Anvin) for the making the actual code detecting the
scattered features data-driven.
Signed-off-by: NVenkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The X86_MINIMUM_CPU_MODEL name isn't really right, so change it to
X86_MINIMUM_CPU_FAMILY.  Also, the default minimum should be 3, not 0.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Unify the handling of the CPU features vectors between i386 and x86-64.
This also adopts the collapsing of features which are required at
compile-time into constant tests from x86-64 to i386.
Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

While the PC speaker is wired up to the i8254 there is more to the i8254
than just the PC speaker so this code was getting in the way under its
current name.
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

The only pseudo-legitimate MIPS user of genrtc was a systems that doesn't
have an RTC in hardware at all.  At this point faking one is a little
pointless ...

Signed-off-by: NYoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>