SPDX: Convert all of our single license tags to Linux Kernel style

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So

SPDX: Convert all of our single license tags to Linux Kernel style

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>

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

dm: x86: Allow TSC timer to be used before DM is ready

With bootstage we need access to the timer before driver model is set up.
To handle this, put the required state in global_data and provide a n

dm: x86: Allow TSC timer to be used before DM is ready

With bootstage we need access to the timer before driver model is set up.
To handle this, put the required state in global_data and provide a new
function to set up the device, separate from the driver's probe() method.

This will be used by the 'early' timer also.

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: acpi: Fix Windows S3 resume failure

U-Boot sets up the real mode interrupt handler stubs starting from
address 0x1000. In most cases, the first 640K (0x00000 - 0x9ffff)
system memory is reporte

x86: acpi: Fix Windows S3 resume failure

U-Boot sets up the real mode interrupt handler stubs starting from
address 0x1000. In most cases, the first 640K (0x00000 - 0x9ffff)
system memory is reported as system RAM in E820 table to the OS.
(see install_e820_map() implementation for each platform). So OS
can use these memories whatever it wants.

If U-Boot is in an S3 resume path, care must be taken not to corrupt
these memorie otherwise OS data gets lost. Testing shows that, on
Microsoft Windows 10 on Intel Baytrail its wake up vector happens to
be installed at the same address 0x1000. While on Linux its wake up
vector does not overlap this memory range, but after resume kernel
checks low memory range per config option CONFIG_X86_RESERVE_LOW
which is 64K by default to see whether a memory corruption occurs
during the suspend/resume (it's harmless, but warnings are shown
in the kernel dmesg logs).

We cannot simply mark the these memory as reserved in E820 table
because such configuration makes GRUB complain: unable to allocate
real mode page. Hence we choose to back up these memories to the
place where we reserved on our stack for our S3 resume work.
Before jumping to OS wake up vector, we need restore the original
content there.

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: baytrail: Conditionally report S3 in the ACPI table

When U-Boot is built without ACPI S3 support, it should not report
S3 in the ACPI table otherwise when kernel does STR it won't work.

Signed

x86: baytrail: Conditionally report S3 in the ACPI table

When U-Boot is built without ACPI S3 support, it should not report
S3 in the ACPI table otherwise when kernel does STR it won't work.

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: Store and display previous sleep state

Add one member in the global data to store previous sleep state,
and display the state during boot in print_cpuinfo().

Signed-off-by: Bin Meng <bmeng.cn@

x86: Store and display previous sleep state

Add one member in the global data to store previous sleep state,
and display the state during boot in print_cpuinfo().

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: Move turbo_state to global_data

To avoid using BSS in SPL before SDRAM is set up, move this field to
global_data.

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

x86: Move turbo_state to global_data

To avoid using BSS in SPL before SDRAM is set up, move this field to
global_data.

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

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x86: Move pirq_routing_table to global_data

To avoid using BSS in SPL before SDRAM is set up, move this field to
global_data.

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

x86: Move pirq_routing_table to global_data

To avoid using BSS in SPL before SDRAM is set up, move this field to
global_data.

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

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x86: Support global_data on x86_64

At present this is just an ordinary variable. We may consider making it a
fixed register in the future.

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

x86: Support global_data on x86_64

At present this is just an ordinary variable. We may consider making it a
fixed register in the future.

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

Signed-off-by: Stefano Babic <sbabic@denx.de>

Merge branch 'master' of git://git.denx.de/u-boot-x86

x86: Prepare configuration tables in dedicated high memory region

Currently when CONFIG_SEABIOS is on, U-Boot allocates configuration
tables via normal malloc(). To simplify, use a dedicated memory

x86: Prepare configuration tables in dedicated high memory region

Currently when CONFIG_SEABIOS is on, U-Boot allocates configuration
tables via normal malloc(). To simplify, use a dedicated memory
region which is reserved on the stack before relocation for this
purpose. Add functions for reserve and malloc.

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

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x86: broadwell: Add support for SDRAM setup

Broadwell uses a binary blob called the memory reference code (MRC) to start
up its SDRAM. This is similar to ivybridge so we can mostly use common code
f

x86: broadwell: Add support for SDRAM setup

Broadwell uses a binary blob called the memory reference code (MRC) to start
up its SDRAM. This is similar to ivybridge so we can mostly use common code
for running this blob.

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

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x86: tsc: Remove legacy timer codes

Now that we have converted all x86 boards to use driver model timer,
remove these legacy timer codes in the tsc driver.

Note this also removes the TSC_CALIBRATIO

x86: tsc: Remove legacy timer codes

Now that we have converted all x86 boards to use driver model timer,
remove these legacy timer codes in the tsc driver.

Note this also removes the TSC_CALIBRATION_BYPASS Kconfig option,
as it is not needed with driver model.

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

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x86: Remove MIN_PORT80_KCLOCKS_DELAY

This is not referenced anywhere. Remove it, as well as
tsc_base_kclocks and tsc_prev in the global data.

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

x86: Remove MIN_PORT80_KCLOCKS_DELAY

This is not referenced anywhere. Remove it, as well as
tsc_base_kclocks and tsc_prev in the global data.

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

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

x86: Move the GDT into global_data

Rather than keeping track of the Global Descriptor Table in its own memory
we may as well put it in global_data with everything else. As a first step,
stop using t

x86: Move the GDT into global_data

Rather than keeping track of the Global Descriptor Table in its own memory
we may as well put it in global_data with everything else. As a first step,
stop using the separately allocated GDT.

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 support for passing tables into U-Boot

The EFI stub provides information to U-Boot in a table. This includes the
memory map which is needed to decide where to relocate U-Boot. Collect this

x86: Add support for passing tables into U-Boot

The EFI stub provides information to U-Boot in a table. This includes the
memory map which is needed to decide where to relocate U-Boot. Collect this
information in the early init code and store it in global_data.

Fix up the BIST code at the same time since we don't have it when booting
from EFI and can assume it is 0.

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

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x86: Allow use of global_data with EFI

On x86 the global_data pointer is provided through a somewhat-bizarre and
x86-specific mechanism: the F segment register is set to a pointer to the
start of gl

x86: Allow use of global_data with EFI

On x86 the global_data pointer is provided through a somewhat-bizarre and
x86-specific mechanism: the F segment register is set to a pointer to the
start of global_data, so that accesses can use this build-in register.

When running as an EFI application we don't want to mess with the Global
Descriptor Table (GDT) and there is little advantage (in terms of code size)
to doing so.

Allow global_data to be a simple variable in this case.

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

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x86: Tidy up global_data flags

These flags now overlap some global ones. Adjust the x86-specific flags to
avoid this. Since this requires a change to the start.S code, add a way for
tools to find th

x86: Tidy up global_data flags

These flags now overlap some global ones. Adjust the x86-specific flags to
avoid this. Since this requires a change to the start.S code, add a way for
tools to find the 32-bit cold reset entry point. Previously this was at a
fixed offset.

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

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x86: Store the GDT pointer in global_data

When we start up additional CPUs we want them to use the same Global
Descriptor Table. Store the address of this in global_data so we can
reference it later

x86: Store the GDT pointer in global_data

When we start up additional CPUs we want them to use the same Global
Descriptor Table. Store the address of this in global_data so we can
reference it later.

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 branch 'master' of git://git.denx.de/u-boot-x86