These functions should not modify the device. Convert them to const so
that callers don't need to cast if they have a const udevice *.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add a description of how this module works and also some missing function
comments.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
To enable support for the 'mtrr' command, add a way to perform MTRR
operations on selected CPUs.
This works by setting up a little 'operation' structure and sending it
around the CPUs for action.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
SMP should be set up in U-Boot where possible, not SPL. Disable it in SPL.
For 64-bit U-Boot we should find a way to allow SMP operations in U-Boot,
but this is somewhat more complicated. For now that is disabled too.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Update the mtrr command to use mp_run_on_cpus() to obtain its information.
Since the selected CPU is the boot CPU this does not change the result,
but it sets the stage for supporting other CPUs.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
It is convenient to iterate through the CPUs performing work on each one
and processing the result. Add a few iterator functions which handle this.
These can be used by any client code. It can call mp_run_on_cpus() on
each CPU that is returned, handling them one at a time.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
With the new MP features the CPUs are no-longer parked when the OS is run.
Fix this by calling a special function to park them, just before the OS is
started.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Add a way to run a function on a selection of CPUs. This supports either
a single CPU, all CPUs, just the main CPU or just the 'APs', in Intel
terminology.
It works by writing into a mailbox and then waiting for the CPUs to notice
it, take action and indicate they are done.
When SMP is not yet enabled, this just calls the function on the main CPU.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
At present the APs (non-boot CPUs) are inited once and then parked ready
for the OS to use them. However in some cases we want to send new requests
through, such as to change MTRRs and keep them consistent across CPUs.
Change the last state of the flight plan to go into a wait loop, accepting
instructions from the main CPU.
Drop cpu_map since it is not used.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
The functions used by the flight plan are declared in the header file but
are not used in any other file.
Move the flight plan steps down to just above where it is used so that we
can make these function static.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
At present the 'flight plan' for CPUs is passed into mp_init. But it is
always the same. Move it into the mp_init file so everything is in one
place. Also drop the SMI function since it does nothing. If we implement
SMIs, more refactoring will be needed anyway.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This function does not exist anymore. Drop it from the header file.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
At present this information is used to locate and parse the tables but is
not stored. Store it so that we can display it to the user, e.g. with the
'bdinfo' command.
Note that now the GD_FLG_SKIP_LL_INIT flag is set in get_coreboot_info(),
so it is always set when booting from coreboot.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
The FSP-S changes the ITSS priorities. The code that tries to save it
before running FSP-S and restore it afterwards does not work as U-Boot
relocates in between the save and restore. This means that the driver
data saved before relocation is lost and the new driver just sees zeroes.
Fix this by allocating space in the relocated memory for the ITSS data.
Save it there and access it from the driver after relocation.
This fixes interrupt handling on coral.
Also drop the log_msg_ret() in irq_first_device_type() since this function
can be called speculatively in places where we are not sure if there is
an interrupt controller of that type. The resulting log errors are
confusing when there is no error.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
This is in the device tree now, so drop the unnecessary field here.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
At present we can query the offset of a pinctrl register within the p2sb.
For ACPI we need to get the actual address of the register. Add a function
to handle this and rename the old one to more accurately reflect its
purpose.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
The Intel Non-High-Definition-Audio Link Table (NHLT) table describes the
audio codecs and connections in a system. Various devices can contribute
information to produce the table.
Add functions to allow adding to the structure that is eventually written
to the ACPI tables. Also add the device-tree bindings.
Signed-off-by: Simon Glass <sjg@chromium.org>
In some cases an internal error may prevent this from working. Update the
function return value and report the error. At present the API for writing
tables does not easily support reporting errors, but once it is fully
updated to use a context pointer, this will be easier.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
With DDR4, Intel SOCs take quite a long time to init their memory. During
this time, if the user is watching, it looks like SPL has hung. Add a
message in this case.
This works by adding a return code to fspm_update_config() that indicates
whether MRC data was found and a new property to the device tree.
Also add one more debug message while starting.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Tested-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
At present this enables a few arch-specific members of the global_data
struct which are otherwise not part of the struct. As a result we have to
use #ifdef in various places.
The cost of always having these in the struct is small. Adjust things so
that we can use compile-time code instead of #ifdefs.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
The APL FSP appears to leave the FPU in a bad state in that it has
registers in use. This causes an error when the next FPU operation is
performed.
Work around this by re-resetting the FPU after calling FSP-M. This allows
the freetype console to work correctly.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
In order to update our <linux/compiler.h> to a newer version that no
longer provides ACCESS_ONCE() but only READ_ONCE()/WRITE_ONCE() we need
to convert arch/x86/include/asm/atomic.h to the other macros.
Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
PCI Firmware specification requires _UID() and doesn't require _ADR()
to be set. Replace latter by former. This fixes the following warning
reported by ACPICA 20200430:
Warning 3073 - Multiple types (Device object requires either a _HID
or _ADR, but not both)
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
PCI Firmware specification requires _UID() and doesn't require _ADR()
to be set. Replace latter by former. This fixes the following warning
reported by ACPICA 20200430:
Warning 3073 - Multiple types (Device object requires either a _HID
or _ADR, but not both)
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Create buffers outside of the methods as ACPICA 20200430 complains
about this:
Remark 2173 - Creation of named objects within a method is highly
inefficient, use globals or method local variables instead
(\_SB.PCI0.LPCB.IURT._CRS)
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
ACPICA complains that either _HID() or _ADR() should be used.
For General Purpose DMA we may not drop the _ADR() because
the device is enumerated by PCI. Thus, simple drop _HID().
Reported-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
ACPICA complains that either _HID() or _ADR() should be used.
Drop _ADR() where _HID() is present.
Reported-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
PCI Firmware specification requires _UID() and doesn't require _ADR()
to be set. Replace latter by former.
Reported-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Create buffers outside of the methods as ACPICA 20200214 complains about this:
Remark 2173 - Creation of named objects within a method is
highly inefficient, use globals or method local variables
instead
Reported-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
When comparing hex dumps it is useful to see the offsets of the registers.
Add them in where they correspond to a multiple of 16.
Possibly it would be useful to have a a command to output the FSP values
in human-readable form, making use of the fsp_bindings implementation.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
When comparing hex dumps it is useful to see the offsets of the registers.
Add them in where they correspond to a multiple of 16.
Possibly it would be useful to have a a command to output the FSP values
in human-readable form, making use of the fsp_bindings implementation.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
The change to avoid searching the device tree does not work on boards
wich don't have driver model set up this early, for example minnowmax.
Put back the old code (converted to livetree) as a fallback for these
devices. Also update the documentation.
This is tested on minnowmax, link, samus and coral.
Fixes: 87f1084a63 (x86: Adjust mrccache_get_region() to use livetree)
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com> (on Intel minnowmax)
At present the PCI BDF (bus/device/function) is needed to access the SPI
mapping, since the registers are at BAR0. This doesn't work when PCI
auto-config has not been done yet, since BARs are unassigned.
Add another way to find the mapping, using the MMIO base, if the caller
knows this.
Also add a missing function comment.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
A the moment the FSP-S configuration is a mix of hard coded values and
devicetree properties.
This patch makes FSP-S full configurable from devicetree by
adding binding properties for all FSP-S parameters.
Co-developed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Signed-off-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Signed-off-by: Bernhard Messerklinger <bernhard.messerklinger@br-automation.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org> (Tested on coral)
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
A the moment the FSP-M configuration is a mix of hard coded values and
devicetree properties.
This patch makes FSP-M full configurable from devicetree by adding
binding properties for all FSP-M parameters.
Co-developed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Signed-off-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Signed-off-by: Bernhard Messerklinger <bernhard.messerklinger@br-automation.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org> (Tested on coral)
[sjg: Fix a build error for coral]
Signed-off-by: Simon Glass <sjg@chromium.org>
[bmeng: Add __maybe_unused to fsp_update_config_from_dtb()]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Some places use __ASSEMBLER__ instead which does not work since the
Makefile does not define it. Fix them.
Signed-off-by: Simon Glass <sjg@chromium.org>
We should not use typedefs in U-Boot. They cannot be used as forward
declarations which means that header files must include the full header to
access them.
Drop the typedef and rename the struct to remove the _s suffix which is
now not useful.
This requires quite a few header-file additions.
Signed-off-by: Simon Glass <sjg@chromium.org>
Move this header out of the common header. Network support is used in
quite a few places but it still does not warrant blanket inclusion.
Note that this net.h header itself has quite a lot in it. It could be
split into the driver-mode support, functions, structures, checksumming,
etc.
Signed-off-by: Simon Glass <sjg@chromium.org>
To support detecting booting from coreboot, move the code which locates
the coreboot tables into a common place. Adjust the algorithm slightly to
use a word comparison instead of string, since it is faster.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: correct the comments to 960KB]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
It is useful to dump ACPI tables in U-Boot to see what has been generated.
Add a command to handle this.
To allow the command to find the tables, add a position into the global
data.
Support subcommands to list and dump the tables.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
This file is potentially useful to other architectures saddled with ACPI
so move most of its contents to a common location.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Add the C version of this header. It includes a few Chrome OS bits which
are disabled for a normal build.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Wolfgang Wallner <wolgang.wallner@br-automation.com>
Some files are taken or modified from coreboot, but the files are
no-longer part of the coreboot project. Fix the wording in a few places.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
USB 3 host controller may be described in ACPI to allow users alter
the properties or other features. Describe it for Intel Tangier SoC.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
There is established way to provide I²C timings, or actually counters,
to the OS via ACPI. Fill them for Intel Merrifield platform.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
The function cpu_x86_get_count() is also useful for other modules.
Make it non-static and add a prototype + description.
Signed-off-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
The implementation of dma_map_single() and dma_unmap_single() is
exactly the same for all the architectures that support them.
Factor them out to <linux/dma-mapping.h>, and make all drivers to
include <linux/dma-mapping.h> instead of <asm/dma-mapping.h>.
If we need to differentiate them for some architectures, we can
move the generic definitions to <asm-generic/dma-mapping.h>.
Add some comments to the helpers. The concept is quite similar to
the DMA-API of Linux kernel. Drivers are agnostic about what is
going on behind the scene. Just call dma_map_single() before the
DMA, and dma_unmap_single() after it.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The code in this file is not specific to Apollo Lake. According to
coreboot sources (where this code comes from), it is common to at least:
* Apollo Lake
* Cannon Lake
* Ice Lake
* Skylake
Signed-off-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
ITSS stands for "Interrupt Timer Subsystem", so add that term to the
description of the relevant files.
Signed-off-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Since mid 2016, coreboot has additional fields in the serial struct that
it passes down to U-Boot. Add these so we are in sync.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Subsystems such as USB expect dma_map_single() and dma_unmap_single() to
do dcache flush/invalidate operations as required. For example, see
see drivers/usb/gadget/udc/udc-core.c::usb_gadget_map_request().
Currently drivers do this locally, (see drivers/usb/dwc3/ep0.c,
drivers/mtd/nand/raw/denali.c etc..)
Update arch specific dma_map_single() and dma_unmap_single() APIs to do
cache flush/invalidate operations, so that drivers need not implement
them locally.
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Rick Chen <rick@andestech.com>
These are mostly specific to a particular SoC. Add the definitions for
Apollo Lake.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin 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: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin 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: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin 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: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin 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: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin 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: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin 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: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin 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: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin 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: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin 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: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin 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: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This is used on several boards so add it to the common file. Also add a
useful power-limit value while we are here.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Newer Intel SoCs have different ways of setting up cache-as-ram (CAR).
Add support for these along with suitable configuration options.
To make the code cleaner, adjust a few definitions in processor.h so that
they can be used from assembler.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
The fsp_notify() API is the same for FSP1 and FSP2. Move it into a new
common API file.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
FSP-S is used by the notify call after it has been used for silicon init.
To avoid having to load it again, add a field to store the location.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Add support for some important configuration options and FSP memory init.
The memory init uses swizzle tables from the device tree.
Support for the FSP_S binary is also included.
Bootstage timing is used for both FSP_M and FSP_S and memory-mapped SPI
reads.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This function needs to be different for FSP2, so move the existing
function into the fsp1 directory. Since it is only called from one file,
drop it from the header file.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This function is only used within the implementation so make it static.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
With Apollo Lake we need to support a normal cache, which almost never
changes and a much smaller 'variable' cache which changes every time.
Update the code to add a cache type, use an array for the caches and use a
for loop to iterate over the caches.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
At present we reuse the mrc_output char * to also point to the cache
record after it has been set up. This is confusing and doesn't save much
data space.
Add a new mrc_cache member instead.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
At present the records are 4KB in size. This is unnecessarily large when
the SPI-flash erase size is 256 bytes. Reduce it so it will be more
efficient with Apollo Lake's 24-byte variable-data record.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Most x86 CPUs use a mechanism where the SPI flash is mapped into the very
top of 32-bit address space, so that it can be executed in place and read
simply by copying from memory. For an 8MB ROM the mapping starts at
0xff800000.
However some recent Intel CPUs do not use a simple 1:1 memory map. Instead
the map starts at a different address and not all of the SPI flash is
accessible through the map. This 'Fast SPI' feature requires that U-Boot
check the location of the map. It is also possible (optionally) to read
from the SPI flash using a driver.
Add support for booting from Fast SPI. The memory-mapped version is used
by both TPL and SPL on Apollo Lake.
In respect of a SPI flash driver, the actual SPI driver is ich.c - this
just adds a few helper functions and definitions.
This is used by Apollo Lake.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Drivers are not allowed to use static data since they may be used in SPL
where BSS is not available.
It is possible that driver model may provide support for numbering devices
in the future. But for now, move this to global_data.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
For TPL we only need to set up the features and identify the CPU to a
basic level. Add a function to handle that.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
The x86 power unit handles power management. Support initing this device
which is modelled as a new type of system controller since there are no
operations needed.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
At present the value of the timer base is used to determine whether the
timer has been set up or not. It is true that the timer is essentially
never exactly 0 when it is read. However 'time 0' may indicate the time
that the machine was reset so it is useful to be able to denote that.
Update the code to use a separate flag instead.
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Aiden Park <aiden.park@intel.com>
Reviewed-by: Aiden Park <aiden.park@intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Normally U-Boot handles MTRRs through an add/commit process which
overwrites all MTRRs. But in very early boot it is not desirable to clear
the existing MTRRs since they may be in use and it can cause a hang.
Add a new mtrr_set_next_var() function which sets up the next available
MTRR to the required region.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: pass 'type' to set_var_mtrr() in mtrr_set_next_var()]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Add a few more CPU functions that are common on Intel CPUs. Also add
attribution for the code source.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: add missing MSR_IA32_MISC_ENABLE write back in cpu_set_eist();
fix 2 typos in cpu_get_burst_mode_state() comments]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Some MSR registers are defined twice in different parts of the file. Move
them together and remove the duplicates. Also drop some thermal defines
which are not used.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
These functions are the same on modern Intel CPUs, so use common code to
set them.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: return false instead of 0 in cpu_ivybridge_config_tdp_levels();
fix 'muiltiplier' and 'desgn' typos]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Modern Intel CPUs use a standard bus clock value of 100MHz, so put this in
a common file and tidy up the copies.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This code appears in a few places, so move it to a common file.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This parameter is needed by the PCI driver-mode interface but is always
NULL on x86. There are a number of calls to this function so it makes
sense to minimise the parameters.
Adjust the x86 function to omit the first parameter, and introduce stub
functions to handle the conversion.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: rebase the patch against u-boot-x86/next to get it applied cleanly]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
At present this hedaer is only available on x86. To allow sandbox to use
it for testing, move it to a common location.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This MSR number is used on most modern Intel processors, so drop the
confusing NHM prefix (which might mean Nehalem).
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: drop MSR_IVT_TURBO_RATIO_LIMIT as no code uses it]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Add some new MTRRs used by Apollolake as well as a mask for the MTRR
type.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
The useable RAM is calculated when the RAM is inited. Save this value so
that it can be easily used in U-Boot proper.
Also save a pointer to the hob list so that it is accessible (before
relocation only) in U-Boot proper. This avoids having to scan it in SPL,
for everything U-Boot proper might need later.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: guard handoff_arch_save() with IS_ENABLED(CONFIG_USE_HOB)]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
This image loader works on systems where the flash is directly mapped to
the last part of the 32-bit address space. On recent Intel systems (such
as apollolake) this is not the case.
Reduce the priority of this loader so that another one can override it.
While we are here, rename the loader to BOOT_DEVICE_SPI_MMAP since
BOOT_DEVICE_BOARD is not very descriptive.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
At present the x86 pre-DM equivalent of pci_bus_clrset_config32() does not
exist. Add it to simplify PCI init code on x86.
Also add the missing functions to this header.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
