- Various x86 common codes updated for TPL/SPL
- I2C designware driver updated for PCI
- ICH SPI driver updated to support Apollo Lake
- Add Intel FSP2 base support
- Intel Apollo Lake platform specific drivers support
- Add a new board Google Chromebook Coral

i2c: for next
- misc: i2c_eeprom:
  Add partition support and add ability to query size
  of eeprom device and partitions
- i2c common:
  add support for offset overflow in to address and add
  sandbox tests for it.

Add ability to query size of eeprom device and partitions
Signed-off-by: NRobert Beckett <bob.beckett@collabora.com>
Reviewed-by: NHeiko Schocher <hs@denx.de>

Add ability to partition eeprom via devicetree bindings
Signed-off-by: NRobert Beckett <bob.beckett@collabora.com>
Reviewed-by: NHeiko Schocher <hs@denx.de>

Add support for setting the chip address offset mask to EEPROM sumulator
and add tests to test it.
Signed-off-by: NRobert Beckett <bob.beckett@collabora.com>
Reviewed-by: NHeiko Schocher <hs@denx.de>

Improve i2c EEPROM simulator testing by providing access functions to
check the previous chip addr and offset.

Given that we can now directly test the offsets, also simplified the
offset mapping and allow for wrapping acceses.
Signed-off-by: NRobert Beckett <bob.beckett@collabora.com>
Reviewed-by: NHeiko Schocher <hs@denx.de>

Some devices (2 wire eeproms for example) use some bits from the chip
address to represent the high bits of the offset instead of or as well
as using multiple bytes for the offset, effectively stealing chip
addresses on the bus.

Add a chip offset mask that can be set for any i2c chip which gets
filled with the offset overflow during offset setup.
Signed-off-by: NRobert Beckett <bob.beckett@collabora.com>
Signed-off-by: NIan Ray <ian.ray@ge.com>
Reviewed-by: NHeiko Schocher <hs@denx.de>

Add support for coral which is a range of Apollo Lake-based Chromebook
released in 2017. This also includes reef released in 2016, since it is
based on the same SoC.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

The memory and silicon init parts of the FSP need support code to work.
Add this for Apollo Lake.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

These are mostly specific to a particular SoC. Add the definitions for
Apollo Lake.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

Add basic plumbing to allow Apollo Lake support to be used.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

Adds a driver for the Apollo Lake Primary-to-sideband bus. This supports
various child devices. It supposed both device tree and of-platdata.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

Add code to init the system both in TPL and SPL. Each phase has its own
procedure.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

Add a bare-bones CPU driver so that CPUs can be probed.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

Add loaders for SPL and TPL so that the next stage can be loaded from
memory-mapped SPI or, failing that, the Fast SPI driver.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

Binman supports writing the position and size of U-Boot proper and SPL
into the previous phase of U-Boot. This allows the next phase to be easily
located and loaded.

Add functions to return these useful values, along with symbols to allow
TPL to load SPL.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

Add a driver for the Apollo Lake P-unit (power unit). It is modelled as a
syscon driver since it only needs to be probed.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

Add a driver for the Apollo Lake Platform Controller Hub. It does not have
any functionality and is just a placeholder for now.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

This driver the LPC and provides a few functions to set up LPC features.
These should probably use ioctls() or perhaps, better, have specific
uclass methods.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

This driver models some sort of interrupt thingy but there are so many
abreviations that I cannot find out what it stands for. Possibly something
to do with interrupts.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

This driver models the hostbridge as a northbridge. It simply sets up the
graphics BAR. It supports of-platdata.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

This driver handles communication with the systemagent which needs to be
told when U-Boot has completed its init.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

For Apollo Lake we need to take the I2C bus controller out of reset before
using this. Add this functionality to the driver.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NHeiko Schocher <hs@denx.de>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

Add a driver for the Apollo Lake pinctrl. This mostly makes use of the
common Intel pinctrl support.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

Add a driver for the Apollo Lake UART. It uses the standard ns16550 device
but also sets up the input clock with LPSS and supports configuration via
of-platdata.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

Add a driver for the Apollo Lake SoC. It supports the basic operations and
can use device tree or of-platdata.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

Add some fixed IO and mmap addresses for use in the device tree and with
some early-init code.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

This function is specific to qemu so it seems best to keep it separate
from the generic code.

Move it out to a new file and update the condition to use if() instead of
 #ifdef
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

Add a GPIO driver which uses the pinctrl driver to access the pad
information. This driver relies on the GPIO nodes being subnodes to the
pinctrl device.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

Recent Intel SoCs share a pinctrl mechanism with many common elements. Add
an implementation of this core functionality, allowing SoC-specific
drivers to avoid adding common code.

As well as a pinctrl driver this provides a GPIO driver based on the same
code.

Once other SoCs use this driver we may consider moving more properties to
the device tree (e.g. the community info and pad definitions).
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

This subsystem is present on various Intel SoCs.

Add very basic support for taking an lpss device out of reset.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

If these phases are used we typically want to enable pinctrl in then, so
that pad setup and GPIO access are possible.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

With of-platdata we need to create drivers for particular chips, or at
least drivers that are separate from the standard code, since C structures
are created by dtoc which are private to that driver.

To avoid duplicating the probing code, export this probe function for use
by these drivers.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

Add support for Apollo Lake to the ICH driver. This involves adjusting the
mmio address and skipping setting of the bbar.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

In TPL we want to reduce code size and support running with CONFIG_PCI
disabled. Add special code to handle this using a fixed BAR programmed
into the SPI on boot. Also cache the SPI flash to speed up boot.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

Add this method so that the memory-mapped location of the SPI flash can
be queried.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

Apollo Lake (APL) only supports hardware sequencing. Add support for this
into the SPI driver, as an option.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

The Intel Fast SPI interface is similar to ICH. Add of-platdata support
for this using the "intel,fast-spi" compatible string.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

This incorrectly shortens read operations if there is a maximum write size
but no maximum read size. Fix it.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>

We don't want to include dt-structs.h in header files, so add a note about
that.
Signed-off-by: NSimon Glass <sjg@chromium.org>
Reviewed-by: NBin Meng <bmeng.cn@gmail.com>