[coreboot] ACPI patches for Tyan s2895, s2892, s2891

[Myles Watson]

These patches let Ubuntu 8.10 boot with ACPI support and no ACPI
table-related warnings.  I haven't done SMM support yet, so that still
complains and disables IRQ 9.

Windows still doesn't like something, but I thought I'd contribute
this code before I started using munged factory tables to see if I can
get it to work that way.  Because resource allocation is totally
different, the tables will need to be munged quite a bit :(

_Tyan_common_tables.diff_

This patch adds common elements for ck804-based boards.

changes by file:
src/arch/i386/boot/acpi.c:
    Be Paranoid and set srat_lapic table to zero before filling it.
    Enable SLIT filling if acpi_create_slit gets called.

src/northbridge/amd/amdk8/northbridge.c:
    Add high tables code ala Stefan's code for the i945.

src/northbridge/amd/amdk8/amdk8_util.asl:
    Put this file here instead of every board having a personal copy.

src/southbridge/nvidia/ck804/ck804_lpc.c:
    Enable High Precision Event Timers.
    Add pm_base for ACPI.

src/northbridge/amd/amdk8/amdk8_acpi.c
    Silence warnings about implicit functions and format strings.

src/arch/i386/include/arch/acpi.h:
    Add slit prototype and minor whitespace.

src/southbridge/nvidia/ck804/ck804_fadt.c:
    Since fadt is only dependent on the Southbridge, add it here.

src/southbridge/nvidia/ck804/Config.lb:
    Compile in ck804_fadt.c

_s289X_tables.diff_

changes by file:

src/mainboard/tyan/s289X/Options.lb:
    Add options and defaults for ACPI tables and resources.

src/mainboard/tyan/s289X/mainboard.c:
    Add high_tables resource ala Stefan's code for the Kontron.

src/mainboard/tyan/s289X/acpi_tables.c:
    Fill out the ACPI tables, using existing code where possible.
    Only the madt is different between the boards, to be combined later.

src/mainboard/tyan/s289X/Config.lb:
    Compile in acpi_tables.c and dsdt.dsl.
    Turn on the parallel port and the real-time-clock.

src/mainboard/tyan/s289x/dsdt.dsl:
    The board layout (thanks Rudolf) and interrupts from mptable.c

src/mainboard/tyan/s289x/mptable.c:
    Minor formatting changes to make them diff better.

src/superio/smsc/lpc47b397/superio.c: (s2895 only)
    Correct the size of the real-time-clock so it can be where it belongs.

Signed-off-by: Myles Watson

Thanks,
Myles