x86: Add Intel Tangier support

Add Intel Tangier SoC support.

Intel Tangier SoC is a core part of Intel Merrifield platform. For
example, Intel Edison board is based on such platform.

The patch is

x86: Add Intel Tangier support

Add Intel Tangier SoC support.

Intel Tangier SoC is a core part of Intel Merrifield platform. For
example, Intel Edison board is based on such platform.

The patch is based on work done by the following people (in alphabetical
order):
Aiden Park <aiden.park@intel.com>
Dukjoon Jeon <dukjoon.jeon@intel.com>
eric.park <eric.park@intel.com>
Fabien Chereau <fabien.chereau@intel.com>
Scott D Phillips <scott.d.phillips@intel.com>
Sebastien Colleur <sebastienx.colleur@intel.com>
Steve Sakoman <steve.sakoman@intel.com>
Vincent Tinelli <vincent.tinelli@intel.com>

Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Vincent Tinelli <vincent.tinelli@intel.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

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Merge git://git.denx.de/u-boot-x86

x86: acpi: Add wake up assembly stub

This adds a wake up stub before jumping to OS wake up vector.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by

x86: acpi: Add wake up assembly stub

This adds a wake up stub before jumping to OS wake up vector.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Stefan Roese <sr@denx.de>

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x86: Compile irq.c for 64-bit

There is no reason not to compile irq.c for 64-bit.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

x86: Move setjmp to the i386 directory

This code is only used in 32-bit mode. Move it so that it does not get
built with 64-bit U-Boot.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bi

x86: Move setjmp to the i386 directory

This code is only used in 32-bit mode. Move it so that it does not get
built with 64-bit U-Boot.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

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x86: Move call64 to the i386 directory

This code is only used in 32-bit mode. Move it so that it does not get
built with 64-bit U-Boot.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bi

x86: Move call64 to the i386 directory

This code is only used in 32-bit mode. Move it so that it does not get
built with 64-bit U-Boot.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

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x86: Don't build cpu files which are not supported on 64-bit

Some files cannot be built with 64-bit and mostly don't make sense in that
context. Disable them.

Signed-off-by: Simon Glass <sjg@chromi

x86: Don't build cpu files which are not supported on 64-bit

Some files cannot be built with 64-bit and mostly don't make sense in that
context. Disable them.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

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x86: Don't build call64 and setjmp on 64-bit

These are currently not supported. Calling 64-bit code from 64-bit U-Boot is
much simpler, so this code is not needed. setjmp() is not yet implemented fo

x86: Don't build call64 and setjmp on 64-bit

These are currently not supported. Calling 64-bit code from 64-bit U-Boot is
much simpler, so this code is not needed. setjmp() is not yet implemented for
64-bit.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

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x86: Add cpu code for x86_64

There is not much needed at present, but set up a separate directory to put
this code as it grows.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <

x86: Add cpu code for x86_64

There is not much needed at present, but set up a separate directory to put
this code as it grows.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

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x86: Move the i386 code into its own directory

Much of the cpu and interrupt code cannot be compiled on 64-bit x86. Move it
into its own directory and build it only in 32-bit mode.

Signed-off-by: S

x86: Move the i386 code into its own directory

Much of the cpu and interrupt code cannot be compiled on 64-bit x86. Move it
into its own directory and build it only in 32-bit mode.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

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x86: Add 64-bit start-up code

Add code to start up U-Boot in 64-bit mode. It is fairly simple since we are
running from RAM and SPL has done the low-level init.

Signed-off-by: Simon Glass <sjg@chro

x86: Add 64-bit start-up code

Add code to start up U-Boot in 64-bit mode. It is fairly simple since we are
running from RAM and SPL has done the low-level init.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

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x86: Use X86_16BIT_INIT instead of X86_RESET_VECTOR

Use this new option to control the location of 16-bit init. This will allow
us to place this in SPL if needed.

Signed-off-by: Simon Glass <sjg@ch

x86: Use X86_16BIT_INIT instead of X86_RESET_VECTOR

Use this new option to control the location of 16-bit init. This will allow
us to place this in SPL if needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

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Merge git://git.denx.de/u-boot-x86

x86: Add implementations of setjmp() and longjmp()

Bring in these functions from Linux v4.4. They will be needed for EFI loader
support.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: B

x86: Add implementations of setjmp() and longjmp()

Bring in these functions from Linux v4.4. They will be needed for EFI loader
support.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

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x86: Add basic support for broadwell

This adds the broadwell architecture, with the CPU driver and some useful
header files.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Bin Meng <bmeng.

x86: Add basic support for broadwell

This adds the broadwell architecture, with the CPU driver and some useful
header files.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Bin Meng <bmeng.cn@gmail.com>

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x86: Move cache-as-RAM code into a common location

This cache-as-RAM (CAR) code is common to several Intel chips. Create a new
intel_common directory and move it in there.

Signed-off-by: Simon Glas

x86: Move cache-as-RAM code into a common location

This cache-as-RAM (CAR) code is common to several Intel chips. Create a new
intel_common directory and move it in there.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

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x86: ivybridge: Remove NORTHBRIDGE_INTEL_SANDYBRIDGE

NORTHBRIDGE_INTEL_SANDYBRIDGE is for sandybridge, not ivybridge.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromiu

x86: ivybridge: Remove NORTHBRIDGE_INTEL_SANDYBRIDGE

NORTHBRIDGE_INTEL_SANDYBRIDGE is for sandybridge, not ivybridge.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>

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Merge git://git.denx.de/u-boot-x86

x86: Add a way to call 32-bit code from 64-bit mode

The procedure to drop from 64-bit mode to 32-bit is a bit messy. Add a
function to take care of it. It requires identity-mapped pages and that
the

x86: Add a way to call 32-bit code from 64-bit mode

The procedure to drop from 64-bit mode to 32-bit is a bit messy. Add a
function to take care of it. It requires identity-mapped pages and that
the calling code is running below 4GB.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

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x86: Add support for U-Boot as an EFI application

Add the required x86 glue code. This includes the initial start-up,
relocation and jumping to efi_main(). We also need to avoid fiddling with
interr

x86: Add support for U-Boot as an EFI application

Add the required x86 glue code. This includes the initial start-up,
relocation and jumping to efi_main(). We also need to avoid fiddling with
interrupts.

Signed-off-by: Ben Stoltz <stoltz@google.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

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Merge branch 'master' of git://git.denx.de/u-boot

Merge git://git.denx.de/u-boot-x86

x86: Add I/O APIC register access routines

I/O APIC registers are addressed indirectly. Add io_apic_read() and
io_apic_write() routines to help register access. Two macros for I/O
APIC ID and versio

x86: Add I/O APIC register access routines

I/O APIC registers are addressed indirectly. Add io_apic_read() and
io_apic_write() routines to help register access. Two macros for I/O
APIC ID and version register offset are also added.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>

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x86: dm: Clean up cpu drivers

This commit does the following to clean up x86 cpu dm drivers:
- Move cpu_x86 driver codes from arch/x86/cpu/cpu.c to a dedicated
file arch/x86/cpu/cpu_x86.c
- Rename

x86: dm: Clean up cpu drivers

This commit does the following to clean up x86 cpu dm drivers:
- Move cpu_x86 driver codes from arch/x86/cpu/cpu.c to a dedicated
file arch/x86/cpu/cpu_x86.c
- Rename x86_cpu_get_desc() to cpu_x86_get_desc() to keep consistent
naming with other dm drivers
- Add a new cpu_x86_bind() in the cpu_x86 driver which does exactly
the same as the one in the intel baytrail cpu driver
- Update intel baytrail cpu driver to use cpu_x86_get_desc() and
cpu_x86_bind()

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>

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Merge branch 'u-boot/master' into 'u-boot-arm/master'