Commit graph

712 commits

Author SHA1 Message Date
Bin Meng
95cfa1d46c x86: quark: acpi: Replace _ADR() by _UID() in description of PCI host bridge
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>
2020-06-02 09:16:13 +08:00
Bin Meng
d8b5f5d436 x86: baytrail: acpi: Replace _ADR() by _UID() in description of PCI host bridge
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>
2020-06-02 09:16:13 +08:00
Bin Meng
319506c7a9 x86: baytrail: acpi: Create buffers outside of the methods
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>
2020-06-02 09:16:13 +08:00
Andy Shevchenko
b9ce32ec3a x86: tangier: acpi: Drop _HID() where enumerated by _ADR()
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>
2020-06-02 09:16:13 +08:00
Andy Shevchenko
10a428ed15 x86: tangier: acpi: Drop _ADR() where _HID() is present
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>
2020-06-02 09:16:13 +08:00
Andy Shevchenko
55f54538f8 x86: tangier: acpi: Replace _ADR() by _UID() in description of PCI host bridge
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>
2020-06-02 09:16:13 +08:00
Andy Shevchenko
d8177a94ca x86: tangier: acpi: Create buffers outside of the methods
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>
2020-06-02 09:16:13 +08:00
Simon Glass
4711c1f548 x86: apl: Add hex offsets for registers in FSP-S
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>
2020-06-02 09:16:13 +08:00
Simon Glass
6e5ac59ec3 x86: apl: Add hex offsets for registers in FSP-M
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>
2020-06-02 09:16:13 +08:00
Simon Glass
70c3c911cc x86: mrccache: Allow use before driver model is active
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)
2020-06-02 09:16:13 +08:00
Simon Glass
8e2922e357 x86: spi: Add a way to access the SPI mapping via registers
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>
2020-06-02 09:16:13 +08:00
Christian Gmeiner
53942b9658 x86: coreboot: add SMBIOS cbmem entry parsing
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2020-05-27 14:40:09 +08:00
Bernhard Messerklinger
d9e7efe10a x86: apl: Use devicetree for FSP-S configuration
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>
2020-05-27 14:40:09 +08:00
Bernhard Messerklinger
1fa6305fd6 x86: apl: Use devicetree for FSP-M configuration
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>
2020-05-27 14:40:09 +08:00
Simon Glass
cd93d625fd common: Drop linux/bitops.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 21:19:23 -04:00
Simon Glass
f09f1ecbe7 Use __ASSEMBLY__ as the assembly macros
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>
2020-05-18 21:19:23 -04:00
Simon Glass
0914011310 command: Remove the cmd_tbl_t typedef
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>
2020-05-18 18:36:55 -04:00
Simon Glass
e6f6f9e648 common: Drop part.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 17:33:33 -04:00
Simon Glass
90526e9fba common: Drop net.h from common header
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>
2020-05-18 17:33:31 -04:00
Simon Glass
33139a0bc7 x86: Move coreboot-table detection into common code
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>
2020-04-30 17:47:06 +08:00
Simon Glass
0b885bcfd9 acpi: Add an acpi command
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>
2020-04-30 17:16:12 +08:00
Simon Glass
776cc20194 x86: Move acpi_table header to main include/ directory
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>
2020-04-16 14:36:28 +08:00
Simon Glass
b2c3868463 x86: apl: Add Global NVS table header
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>
2020-04-16 14:36:28 +08:00
Simon Glass
2831405447 x86: Correct wording of coreboot source code
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>
2020-04-16 14:36:28 +08:00
Andy Shevchenko
4d073fa83b x86: acpi: Describe USB 3 host controller found on Intel Tangier
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>
2020-04-04 22:08:44 +08:00
Andy Shevchenko
d0f7ab5310 x86: acpi: Add I²C timings to Intel Merrifield platform
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>
2020-04-04 22:08:44 +08:00
Wolfgang Wallner
fc35d7e1b1 x86: cpu_x86: Make cpu_x86_get_count() non-static
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>
2020-03-05 18:25:22 +08:00
Masahiro Yamada
9d86b89c59 dma-mapping: move dma_map_(un)single() to <linux/dma-mapping.h>
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>
2020-02-19 21:27:30 +08:00
Masahiro Yamada
950c596867 dma-mapping: fix the prototype of dma_unmap_single()
dma_unmap_single() takes the dma address, not virtual address.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2020-02-19 21:27:30 +08:00
Masahiro Yamada
c22c0dbd7d dma-mapping: fix the prototype of dma_map_single()
Make dma_map_single() return the dma address, and remove the
pointless volatile.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2020-02-19 21:27:30 +08:00
Wolfgang Wallner
142c9751a6 x86: Move itss.h from Apollo Lake to the generic x86 include directory
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>
2020-02-04 01:19:28 +08:00
Wolfgang Wallner
7d53b5a4ce x86: apl: Add the term "Interrupt Timer Subsystem" to ITSS files
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>
2020-02-04 01:19:28 +08:00
Simon Glass
8c3ccb3f6d x86: Update coreboot serial table struct
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>
2020-02-04 01:19:25 +08:00
Vignesh Raghavendra
c0a5a81f74 asm: dma-mapping.h: Fix dma mapping functions
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>
2020-01-25 12:04:36 -05:00
Simon Glass
a9a4b685de x86: apl: Add FSP structures
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>
2019-12-15 11:44:30 +08:00
Simon Glass
6a4c237af9 x86: apl: Add a CPU driver
Add a bare-bones CPU driver so that CPUs can be probed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-12-15 11:44:29 +08:00
Simon Glass
40fb08e917 x86: apl: Add PCH driver
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>
2019-12-15 11:44:28 +08:00
Simon Glass
8bd5dcd895 x86: apl: Add LPC driver
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>
2019-12-15 11:44:28 +08:00
Simon Glass
3a02f699fa x86: apl: Add ITSS driver
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>
2019-12-15 11:44:27 +08:00
Simon Glass
bd47209743 x86: apl: Add systemagent driver
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>
2019-12-15 11:44:27 +08:00
Simon Glass
0a6f333e8d x86: apl: Add pinctrl driver
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>
2019-12-15 11:44:26 +08:00
Simon Glass
7656582378 x86: apl: Add UART driver
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>
2019-12-15 11:44:26 +08:00
Simon Glass
28eefefccf x86: apl: Add PMC driver
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>
2019-12-15 11:44:26 +08:00
Simon Glass
5690d5c8f8 x86: apl: Add basic IO addresses
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>
2019-12-15 11:44:26 +08:00
Simon Glass
74749f1e84 x86: Add a generic Intel pinctrl driver
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>
2019-12-15 11:44:25 +08:00
Simon Glass
b84d4d0932 x86: Add low-power subsystem (lpss) support
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>
2019-12-15 11:44:25 +08:00
Simon Glass
86c70e9ca6 x86: Make MSR_PKG_POWER_SKU common
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>
2019-12-15 11:44:20 +08:00
Simon Glass
f45e747d6d x86: Add support for newer CAR schemes
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>
2019-12-15 11:44:18 +08:00
Simon Glass
af801921af x86: fsp: Make the notify API call common
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>
2019-12-15 11:44:17 +08:00
Simon Glass
748ff5350a x86: fsp: Allow remembering the location of FSP-S
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>
2019-12-15 11:44:17 +08:00
Simon Glass
cf87d3b503 x86: fsp: Add FSP2 base support
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>
2019-12-15 11:44:16 +08:00
Simon Glass
22e0de3551 x86: Move fsp_prepare_mrc_cache() to fsp1 directory
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>
2019-12-15 11:44:15 +08:00
Simon Glass
fa6cc1de1b x86: Don't export mrccache_update()
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>
2019-12-15 11:44:14 +08:00
Simon Glass
0a0b09b47b x86: Add mrccache support for a 'variable' cache
Add support for a second cache type, for Apollo Lake.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-12-15 11:44:14 +08:00
Simon Glass
515e8174f5 x86: Update mrccache to support multiple caches
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>
2019-12-15 11:44:14 +08:00
Simon Glass
37a508f8b7 x86: Add a new global_data member for the cache record
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>
2019-12-15 11:44:13 +08:00
Simon Glass
112629c53a x86: Reduce mrccache record alignment size
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>
2019-12-15 11:44:12 +08:00
Simon Glass
d496162c85 x86: spi: Add helper functions for Intel Fast SPI
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>
2019-12-15 11:44:08 +08:00
Simon Glass
8d72d5bf08 i2c: designware: Avoid using static data
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>
2019-12-15 11:44:08 +08:00
Simon Glass
ece3a46070 x86: Add a CPU init function for TPL
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>
2019-11-03 07:20:28 +08:00
Simon Glass
c0e2c81d8e x86: spl: Support init of a PUNIT
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>
2019-11-03 07:20:27 +08:00
Simon Glass
a478a26cd0 x86: timer: Use a separate flag for whether timer is inited
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>
2019-11-03 07:20:27 +08:00
Simon Glass
add3f4c918 x86: Add a function to set variable MTRRs
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>
2019-10-08 13:57:48 +08:00
Simon Glass
a27520904f x86: Add new common CPU functions for turbo/burst mode
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>
2019-10-08 13:57:47 +08:00
Simon Glass
f6d00da459 x86: Tidy up some duplicate MSR defines
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>
2019-10-08 13:57:47 +08:00
Simon Glass
2f0c2f03e7 x86: Add common functions for TDP and perf control
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>
2019-10-08 13:57:47 +08:00
Simon Glass
55a6b13a75 x86: Use a common bus clock for Intel CPUs
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>
2019-10-08 13:57:47 +08:00
Simon Glass
246ac08b03 x86: Add a common function to set CPU thermal target
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>
2019-10-08 13:57:46 +08:00
Simon Glass
e2493a7f5a x86: Use a common definition of MSR_IA32_PERF_CTL
Remove the duplicate definition as it is not needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-08 13:57:46 +08:00
Simon Glass
a827ba910c x86: pci: Drop the first parameter in pci_x86_r/w_config()
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>
2019-10-08 13:57:46 +08:00
Simon Glass
49a0f8cc96 x86: Move acpi_s3.h to a common location
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>
2019-10-08 13:57:46 +08:00
Simon Glass
bdeb2bccbf x86: Rename turbo ratio MSR to MSR_TURBO_RATIO_LIMIT
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>
2019-10-08 13:57:37 +08:00
Simon Glass
ebe002cd18 x86: Add various MTRR indexes and values
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>
2019-10-08 13:57:37 +08:00
Simon Glass
c3863eadbc x86: fsp: Save usable RAM and hob_list in the handoff area
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>
2019-10-08 13:57:36 +08:00
Simon Glass
daade119aa x86: spl: Reduce priority of the basic SPL image loader
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>
2019-10-08 13:57:35 +08:00
Simon Glass
e46d00c77c x86: pci: Add a function to clear and set PCI config regs
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>
2019-10-08 13:57:35 +08:00
Simon Glass
d3abc5d1ee x86: Move common Intel CPU info code into a function
Add cpu_intel_get_info() to find out the CPU info on modern Intel CPUs.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: add parameter and return value descriptions]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-08 13:57:35 +08:00
Simon Glass
46dd41fa5a x86: fsp: Add access to variable MRC data
With FSP2 the non-volatile storage used by the FSP to init memory can be
split into a fixed piece (determined at compile time) and a variable piece
(determined at run time). Add support for reading the latter.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-08 13:57:31 +08:00
Simon Glass
ceec18491c x86: fsp: Add a few more definitions for FSP2
Add definitions for the FSP signature and the FSP init phase.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-08 13:57:16 +08:00
Simon Glass
b2d544a15d x86: Move common fsp functions into a common file
Some of this file can be shared between FSP1 and FSP2. Move it into a
shared file.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-08 13:54:01 +08:00
Simon Glass
e9de4a7cd3 x86: fsp: Move common dram functions into a common file
Most of the DRAM functionality can be shared between FSP1 and FSP2. Move
it into a shared file.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-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>
2019-10-08 13:53:57 +08:00
Simon Glass
12cf65a4d1 x86: fsp: Tidy up comment style a little
The comments in the FSP code use a different style from the rest of the
x86 code. I am not sure it this is intentional.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: fix 2 comment style issues]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-08 13:53:54 +08:00
Simon Glass
07f2f58b94 x86: fsp: Create a common fsp_support.h header
Many support functions are common between FSP1 and FSP2. Add a new header
to handle this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: remove forward declarations in fsp_support.h]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-08 13:53:41 +08:00
Simon Glass
e2adc369ec x86: Rename some FSP functions to have an fsp_ prefix
Given these exported function an fsp_ prefix since they are declared in an
fsp.h header.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-08 13:53:34 +08:00
Simon Glass
0e23d7660a x86: Move fsp_ffs.h include to fsp_arch.h
This include file is only used for FSP v1. Avoid including it from
fdt_support.h so we can use the latter with FSP v2.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-08 13:50:55 +08:00
Simon Glass
79b228baae x86: Move fsp_bootmode.h to the generic fsp directory
This header file is the same for FSP v1 and v2, although there may be
some additions to come. Move it into the generic fsp directory.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-08 13:50:50 +08:00
Simon Glass
21a1133d82 x86: Move fsp_infoheader.h to the generic fsp directory
This header file is the same for FSP v1 and v2. Move it into the general
fsp directory.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: move rename of fsp_infoheader.h from previous patch to this one]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-08 13:50:45 +08:00
Simon Glass
e4499b5265 x86: Move fsp_hob.h to the generic fsp directory
This header file is the same for FSP v1 and v2. Move it into the general
fsp directory.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: remove inclusion of fsp_hob.h in fsp_support.h]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-08 13:50:41 +08:00
Simon Glass
aae5b4613a x86: Move fsp_fv.h to the generic fsp directory
This header file is the same for FSP v1 and v2. Move it into the general
fsp directory.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-08 13:50:37 +08:00
Simon Glass
2b5560a6bd x86: Move fsp_types.h to the generic fsp directory
This header file is the same for FSP v1 and v2. Move it into the general
fsp directory.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-08 13:50:31 +08:00
Simon Glass
8a0b4e2dd7 x86: Move fsp_api.h inclusion out of fsp_support.h
This header file is different for each version of FSP. Move it into the
fsp_arch.h header file.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-08 13:50:26 +08:00
Simon Glass
8cd29798d6 x86: Create a new fsp_arch.h header
At present fsp_support.h includes fsp_vpd.h which is an FPSv1 concept
(VPD means Vital Product Data). For FSPv2 only UPD (Updatable Product
Data) is used.

To avoid mangling header files, put these two includes in a separate
header which we can adjust as necessary for FSPv2.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-08 13:50:22 +08:00
Simon Glass
6e93c64117 x86: Move fsp_azalia.h to the generic fsp directory
This header file is the same for FSP v1 and v2. Move it into the general
fsp directory.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: remove forward declarations in fsp_support.h]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-08 13:50:16 +08:00
Simon Glass
8331188615 x86: Rename existing FSP code to fsp1
Since there is now a new version of the FSP and it is incompatible with
the existing version, move the code into an fsp1 directory. This will
allow us to put FSP v2 code into an fsp2 directory.

Add a Kconfig which defines which version is in use.

Some of the code in this new fsp1/ directory is generic across both FSPv1
and FSPv2. Future patches will address this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-08 13:50:08 +08:00
Andy Shevchenko
d905aa8a42 x86: zImage: Propagate acpi_rsdp_addr to kernel via boot parameters
This is reincarnation of the U-Boot

commit 3469bf4274
Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date:   Wed Jan 10 19:40:15 2018 +0200

    x86: zImage: Propagate acpi_rsdp_addr to kernel via boot parameters

after upstream got eventually the Linux kernel

commit e6e094e053af75cbc164e950814d3d084fb1e698
Author: Juergen Gross <jgross@suse.com>
Date:   Tue Nov 20 08:25:29 2018 +0100

    x86/acpi, x86/boot: Take RSDP address from boot params if available

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-10-01 18:20:47 +08:00
Andy Shevchenko
dd4faa964f x86: tangier: Use spaces over TABs in ASL code
For sake of consistency use spaces over TABs in ASL code.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-09-10 16:19:03 +08:00
Andy Shevchenko
0c6352ec2a x86: tangier: Reserve PCI ECAM in motherboard resources
Per PCI firmware specification the ACPI has to reserve the memory
which is defined as PCI ECAM.

Fixes: 39665beed6 ("x86: tangier: Enable ACPI support for Intel Tangier")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-09-10 16:19:03 +08:00
Andy Shevchenko
19b6e1ba8c x86: acpi: Annotate struct acpi_table_header with __packed
GCC 9.2 starts complaining about possible pointer misalignment of
pointers to the unpacked (alignment=4) structures in the packed
(alignment=1) ones:

  CC      arch/x86/cpu/tangier/acpi.o
arch/x86/cpu/tangier/acpi.c: In function ‘acpi_create_fadt’:
arch/x86/cpu/tangier/acpi.c:22:37: warning: taking address of packed
member of ‘struct acpi_fadt’ may result in an unaligned pointer value
[-Waddress-of-packed-member]
  22 |  struct acpi_table_header *header = &(fadt->header);

  CC      arch/x86/lib/acpi_table.o
arch/x86/lib/acpi_table.c: In function ‘acpi_create_spcr’:
arch/x86/lib/acpi_table.c:366:37: warning: taking address of packed
member of ‘struct acpi_spcr’ may result in an unaligned pointer value
[-Waddress-of-packed-member]
  366 |  struct acpi_table_header *header = &(spcr->header);

Fix the potential issues by annotating embedded structures with
__packed even though they are packed naturally.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: add GCC version number in the commit message]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2019-09-10 16:17:55 +08:00
Bin Meng
ea67d549b8 x86: qemu: Support getting high memory size
At present only size of memory that is below 4GiB is retrieved from
QEMU. Add a function that gets size of memory that is above 4GiB.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Aiden Park <aiden.park@intel.com>
2019-09-10 14:19:39 +08:00
Bin Meng
f4c0030074 x86: qemu: Extract getting memory size to a separate routine
This extracts getting memory size logic in dram_init() to a separate
routine qemu_get_low_memory_size(). No functional changes.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Aiden Park <aiden.park@intel.com>
2019-09-10 14:19:39 +08:00
Andy Shevchenko
03f78868ae x86: acpi: Slightly reduce binary size of ACPI tables for Tangier
Using ACPI predefined macros, such as Zero or One, will reduce a binary
size of resulting ACPI tables.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: manually fixed the conflicts when applying]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2019-09-10 14:19:39 +08:00
Stefan Roese
8ad01ce36f x86: Remove x86 specific GD flags as they are not referenced at all
This patch removes the x86 architecture specific GD flags
(GD_FLG_COLD_BOOT & GD_FLG_WARM_BOOT), as they are not used. Only
GD_FLG_COLD_BOOT is referenced in coreboot.c but assigned in start16.S.
But the coreboot target does not use start16.S at all and boots directly
from the 32-bit start code.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2019-08-18 21:54:10 +08:00
Park, Aiden
14360bf059 x86: slimbootloader: Set TSC information for tsc_timer
Slim Bootloader already calibrated TSC and provides it to U-Boot.
Therefore, U-Boot does not have to re-calibrate TSC.
Configuring tsc_base and clock_rate makes x86 tsc_timer driver bypass
TSC calibration and use the provided TSC frequency.
- Get TSC frequency from performance info hob
- Set tsc_base and clock_rate for tsc_timer driver

Signed-off-by: Aiden Park <aiden.park@intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2019-08-09 22:24:02 +08:00
Park, Aiden
2869c3b3de x86: slimbootloader: Add serial driver
Slim Bootloader provides serial port info thru its HOB list pointer.
All these HOBs are eligible for Slim Bootloader based board only.
- Get serial port information from the serial port info HOB
- Leverage ns16550 driver with slimbootloader specific platform data

Signed-off-by: Aiden Park <aiden.park@intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2019-08-09 22:24:02 +08:00
Park, Aiden
1fb17ea548 x86: slimbootloader: Add memory configuration
Slim Bootloader provides memory map info thru its HOB list pointer.
Configure memory size and relocation memory from the HOB data, and
provide e820 entries as well.
- Get memory size from the memory map info HOB
- Set available top memory lower than 4GB for U-Boot relocation
- Provide e820 entries from the memory map info HOB

Signed-off-by: Aiden Park <aiden.park@intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2019-08-09 22:24:02 +08:00
Park, Aiden
7165fd584f x86: Add a common HOB library
FSP (CONFIG_HAVE_FSP) and Slim Bootloader (CONFIG_SYS_SLIMBOOTLOADER)
consume HOB (CONFIG_USE_HOB) data from the each HOB list pointer.
Add a common HOB library in lib/hob.c and include/asm/hob.h.

Signed-off-by: Aiden Park <aiden.park@intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2019-08-09 22:24:02 +08:00
Park, Aiden
5b931a5080 x86: lib: fsp: Use EFI_GUID and efi_guid_t
Use existing EFI_GUID and efi_guid_t instead of struct efi_guid.
This is pre-work before making a common HOB library.
- Change 'struct efi_guid' to efi_guit_t
- Remove 'struct efi_guid'
- Define GUIDs with EFI_GUID() macro
- Use guidcmp() instead of compare_guid()
- Remove compare_guid()

Signed-off-by: Aiden Park <aiden.park@intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

Tested on MinnowMax
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2019-08-09 22:24:02 +08:00
Park, Aiden
544293f878 x86: Add new slimbootloader CPU type
This slimbootloader CPU type is to enable U-Boot as a payload which
runs on top of Slim Bootloader (https://github.com/slimbootloader).
The Slim Bootloader is designed with multi-stage architecture for
the execution from reset vector to OS booting, and supports QEMU,
Apollolake, Whiskeylake and Coffeelake platforms consuming Intel
FSP (https://github.com/IntelFsp) for silicon initialization
including CAR and memory initialization.
The Slim Bootloader generates new HOB (Hand Off Block) which are
serial port info, memory map info, performance data info and so on,
and passes it to a Payload. U-Boot as a payload will use these HOB
information for basic initialization such as serial console.

As an initial commit,
- Add CONFIG_SYS_SLIMBOOTLOADER to enable slimbootloader CPU type
- Add new arch/x86/cpu/slimbootloader directory with minimum codes
- Get hob_list pointer from Slim Bootloader

Signed-off-by: Aiden Park <aiden.park@intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
2019-08-09 22:24:02 +08:00
Andy Shevchenko
e3be52ceac x86: acpi: Enable ACPI companion for Intel iDMA 32-bit
ACPI has a capability to specify DMA parameters for DMA channel consumers.
To enable this for Intel Edison, describe GP DMA device in ACPI table
in order to get an ACPI handle to it in OS.

This works in conjunction with CSRT, which must be in align with DSDT.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-08-09 22:24:02 +08:00
Andy Shevchenko
ddd2a4244c x86: acpi: Introduce a stub to generate CSRT
Here is a stub function that generates an empty CSRT. If the target platform
provides acpi_fill_csrt() function, it will be used to populate the table.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-08-09 22:24:02 +08:00
Andy Shevchenko
eef3007945 x86: acpi: Add CSRT description
Add CSRT [1] description as it provided in Linux kernel.

[1]: http://www.uefi.org/sites/default/files/resources/CSRT%20v2.pdf

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-08-09 22:24:02 +08:00
Simon Glass
44c6a0ed6e x86: Add a forward struct declaration in coreboot_tables.h
This struct is not defined in this header file. Add a forward declaration
so that it can be included in any context.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-07-10 16:52:58 -06:00
Simon Glass
7c03caf6fa x86: Add a simple TPL implementation
Add the required CPU code so that TPL builds correctly. Also update the
SPL code to deal with being booted from TPL.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-05-08 13:02:18 +08:00
Simon Glass
9a67994e01 x86: Support saving MRC data from SPL
When SPL is used to set up the memory controller we want to save the MRC
data in SPL to avoid needing to pass it up to U-Boot proper to save. Add a
function to handle that.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-05-08 13:02:14 +08:00
Simon Glass
62be5dd885 x86: Add a handoff header file
Add an arch-specific handoff header so that we can use the HANDOFF feature
on x86 devices.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-05-08 13:02:12 +08:00
Simon Glass
c0069e9a8a x86: Add a way to reinit the cpu
We cannot init the CPU fully both than once during a boot. Add a new
function which can be called to figure out the CPU identity, but which
does not change anything. For x86_64, this is empty for now.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-05-08 13:02:11 +08:00
Andy Shevchenko
c652dd1557 x86: acpi: Add DMA descriptors for I2C1 on Intel Tangier
Intel Tangier SoC has a general purpose DMA which can serve to speed up
communications on SPI and I2C serial buses.

Provide DMA descriptors to utilize this capability in the future.

Note, I2C6, which is available to user, has no DMA request lines connected.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-03-10 08:17:00 +08:00
Andy Shevchenko
1d2825aa30 x86: acpi: Add DMA descriptors for SPI5 on Intel Tangier
Intel Tangier SoC has a general purpose DMA which can serve to speed up
communications on SPI and I2C serial buses.

Provide DMA descriptors to utilize this capability in the future.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-03-10 08:17:00 +08:00
Simon Glass
3f3411ebf8 x86: broadwell: Add support for serial I/O devices
Add support for initing the I2C device and ADSP on broadwell. These are
needed for sound to work.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-02-20 15:27:10 +08:00
Simon Glass
23e8bd7e49 x86: broadwell: Add support for the ADSP
The Application Digital Signal Processor is used for sound processing with
broadwell. Add a driver to support this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-02-20 15:27:10 +08:00
Simon Glass
79a5be820d sound: x86: Add beeping support in i8254
Adjust the code to allow beeping at different frequencies, using a
calculated value for timer 2.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-02-20 15:27:09 +08:00
Simon Glass
6744c0d652 sound: x86: link: Add sound support
Add sound support for link, using the HDA codec implementation.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-02-20 15:27:09 +08:00
Simon Glass
3a44bfdf08 x86: Adjust I/O macros to work on 64-bit machines
At present these macros give warnings on 64-bit machines and do not
correctly do 32-bit accesses. Update them to use linux types.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2019-02-20 15:25:29 +08:00
Heinrich Schuchardt
6b59607f10 x86: do not use i386 code for x86_64 memory functions
arch/x86/lib/string.c contains assembler implementations of memcpy(),
memmove(), and memset() written for i386. Don't use it on x86_64.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2019-02-13 09:40:06 +01:00
Andy Shevchenko
24b56e2bf3 x86: tangier: Add initial ACPI support for PMIC device
Basin Cove PMIC is connected to I2C0 bus which is hidden from the OS
and access is going via SCU device, enumerated via PCI.

For now, we add just a minimum support of PMIC device to allow enabling,
e.g. USB OTG, in the OS.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Bin Meng <bmeng.cn@gmail.com>
2019-02-12 14:37:17 +08:00
Andy Shevchenko
73af0601e1 x86: acpi: Fix indentation in Intel Tangier ASL code
Make the indentation aligned with what used elsewhere in U-Boot.

No functional change intended.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2018-12-10 10:12:29 +08:00
Andy Shevchenko
f1b8641fd4 x86: acpi: Enable RTC for Intel Tangier
Intel Tangier SoC has RTC inside. So, enable it in ACPI.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2018-12-10 10:12:29 +08:00
Andy Shevchenko
b288cd9600 x86: acpi: Generate SPCR table
Microsoft specifies a SPCR (Serial Port Console Redirection Table) [1].
Let's provide it in U-Boot.

[1]: https://docs.microsoft.com/en-us/windows-hardware/drivers/serports/serial-port-console-redirection-table

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-12-05 07:23:16 -07:00
Andy Shevchenko
f3275aa4a1 x86: acpi: Add SPCR table description
Add SPCR table description as it provided in Linux kernel.

Port subtype for ACPI_DBG2_SERIAL_PORT is used as an interface type in SPCR.
Thus, provide a set of definitions to be utilized later.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2018-12-05 07:23:16 -07:00
Bin Meng
3bf9a8e846 x86: Implement arch-specific io accessor routines
At present the generic io{read,write}{8,16,32} routines only support
MMIO access. With architecture like x86 that has a separate IO space,
these routines cannot be used to access I/O ports.

Implement x86-specific version to support both PIO and MMIO access,
so that drivers for multiple architectures can use these accessors
without the need to know whether it's MMIO or PIO.

These are ported from Linux kernel lib/iomap.c, with slight changes.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-11-14 09:16:27 -08:00
Andy Shevchenko
24109bba6a x86: acpi: Remove redundant Offset (0x00)
New ACPI assembler issues a warning:

board/intel/edison/dsdt.asl.tmp     13:     Offset (0x00),
Remark   2158 -                                       ^ Unnecessary/redundant use of Offset operator

Indeed, in the OperationRegion the offset is 0x00 by default.

Thus, drop unneeded Offset() use as suggested by ACPI assembler.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2018-11-06 13:35:06 +08:00
Stefan Roese
7d2a0534a6 x86: BayTrail: southcluster.asl: Change PCI 64 bit address range / region
To allow bigger 64 bit prefetchable PCI regions in Linux, this patch
changes the base address and range of the ACPI area passed to Linux.
BayTrail can only physically access 36 bit of PCI address space. So
just chaning the range without changing the base address won't work
here, as 0xf.ffff.ffff is already the maximum address.

With this patch, a maximum of 16 GiB of local DDR is supported. This
should be enough for all BayTrail boards though.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2018-10-28 21:02:15 +08:00
Simon Glass
590cee8315 x86: Update mtrr functions to allow leaving cache alone
At present the mtrr functions disable the cache before making changes and
enable it again afterwards. This is fine in U-Boot, but does not work if
running in CAR (such as we are in SPL).

Update the functions so that the caller can request that caches be left
alone.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2018-10-09 04:40:27 -06:00
Georgii Staroselskii
f7ce2d6e65 x86: tangier: acpi: add I2C6 node
Now that we have I2C#6 working, it's time to add a corresponsing
ACPI binding.

Signed-off-by: Georgii Staroselskii <georgii.staroselskii@emlid.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2018-09-17 17:35:53 +08:00
Georgii Staroselskii
224742a390 x86: cpu: introduce scu_ipc_raw_command()
This interface will be used to configure properly some pins on
Merrifield that are shared with SCU.

scu_ipc_raw_command() writes SPTR and DPTR registers before sending
a command to SCU.

This code has been ported from Linux work done by Andy Shevchenko.

Signed-off-by: Georgii Staroselskii <georgii.staroselskii@emlid.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2018-09-17 14:34:15 +08:00
Masahiro Yamada
3747bdbb2b arch: types.h: factor out fixed width typedefs to int-ll64.h
All architectures have the same definition for s8/16/32/64
and u8/16/32/64.

Factor out the duplicated code into <asm-generic/int-ll64.h>.

BTW, Linux unified the kernel space definition into int-ll64.h
a few years ago as you see in Linux commit 0c79a8e29b5f
("asm/types.h: Remove include/asm-generic/int-l64.h").

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-09-10 20:48:16 -04:00
Masahiro Yamada
9865543ae6 Remove CONFIG_USE_STDINT
You do not need to use the typedefs provided by compiler.

Our compilers are either IPL32 or LP64.  Hence, U-Boot can/should
always use int-ll64.h typedefs like Linux kernel, whatever the
typedefs the compiler internally uses.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-09-10 20:48:16 -04:00
Bin Meng
e69cc6bc42 x86: zimage: Remove acpi_rsdp_addr propagation to kernel boot parameters
As of today, the proposal of adding "acpi_rsdp_addr" to the kernel
boot protocol does not make its way to the kernel mainline. This
creates some confusion if we leave it in the U-Boot code base.
Remove it for now until we have a clear picture with kernel upstream.

Note this eventually does a partial revert to commit 3469bf4274
("x86: zImage: Propagate acpi_rsdp_addr to kernel via boot parameters")

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-08-30 11:23:15 +08:00
Bin Meng
1fdeacd32c x86: zimage: Support booting Linux kernel from an EFI payload
At present Linux kernel loaded from U-Boot as an EFI payload does
not boot. This fills in kernel's boot params structure with the
required critical EFI information like system table address and
memory map stuff so that kernel can obtain essential data like
runtime services and ACPI table to boot.

With this patch, now U-Boot as an EFI payload becomes much more
practical: it is another option of kernel bootloader, ie, can be
a replacement for grub.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-08-30 11:23:14 +08:00
Alexander Graf
dae73c4cdc elf: Move x86 reloc defines to common elf.h
We need to know about x86 relocation definitions even in cases where
we don't officially build against the x86 target, such as with sandbox.

So let's move the x86 definitions into the common elf header, where all
other architectures already have them.

Signed-off-by: Alexander Graf <agraf@suse.de>
2018-07-25 14:57:43 +02:00
Bin Meng
05855fd31a x86: acpi: Prevent acpi_table.h from being included more than once
The wrapper #ifndef is currently missing in acpi_table.h. Add it to
prevent it from being included multiple times.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-07-20 09:33:22 +08:00
Bin Meng
a0609a8d19 x86: acpi: Move APIs unrelated to ACPI tables generation to a separate library
acpi_find_fadt(), acpi_find_wakeup_vector() and enter_acpi_mode()
are something unrelated to ACPI tables generation. Move these to
a separate library.

This also fixes several style issues reported by checkpatch in the
original codes.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2018-07-20 09:33:22 +08:00
Bin Meng
b37b7b2063 x86: Switch to use DM sysreset driver
This converts all x86 boards over to DM sysreset.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2018-07-20 09:33:22 +08:00
Ivan Gorinov
8199a145c4 x86: Use microcode update from device tree for all processors
Built without a ROM image with FSP (u-boot.rom), the U-Boot loader applies
the microcode update data block encoded in Device Tree to the bootstrap
processor but not passed to the other CPUs when multiprocessing is enabled.

If the bootstrap processor successfully performs a microcode update
from Device Tree, use the same data block for the other processors.

Signed-off-by: Ivan Gorinov <ivan.gorinov@intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: fixed build errors on edison and qemu-x86]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2018-07-02 09:23:28 +08:00
Bin Meng
5460fd0762 x86: Change __kernel_size_t conditionals to use compiler provided defines
Since commit bb0bb91cf0 ("efi_stub: Use efi_uintn_t"), EFI x86
64-bit payload does not work anymore. The call to GetMemoryMap()
in efi_stub.c fails with return code EFI_INVALID_PARAMETER. Since
the payload itself is still 32-bit U-Boot, efi_uintn_t gets wrongly
interpreted as int, but it should actually be long in a 64-bit EFI
environment.

This changes the x86 __kernel_size_t conditionals to use compiler
provided defines instead. That way we always adhere to the build
environment we're in and the definitions adjust automatically.

Fixes: bb0bb91cf0 ("efi_stub: Use efi_uintn_t")
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-06-24 08:56:04 +08:00
Ivan Gorinov
964927323f x86: Add 64-bit setjmp/longjmp implementation
Add setjmp/longjmp functions for x86_64.

Signed-off-by: Ivan Gorinov <ivan.gorinov@intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2018-06-24 08:56:04 +08:00
Bin Meng
51050ff0a2 x86: irq: Support discrete PIRQ routing registers via device tree
Currently both pirq_reg_to_linkno() and pirq_linkno_to_reg() assume
consecutive PIRQ routing control registers. But this is not always
the case on some platforms. Introduce a new device tree property
intel,pirq-regmap to describe how the PIRQ routing register offset
is mapped to the link number and adjust the irq router driver to
utilize the mapping.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-06-13 09:50:57 +08:00
Bin Meng
dcec5d565a x86: irq: Parse number of PIRQ links from device tree
The "intel,pirq-link" property in Intel IRQ router's dt bindings
has two cells, where the second one represents the number of PIRQ
links on the platform. However current driver does not parse this
information from device tree. This adds the codes to do the parse
and save it for future use.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-06-13 09:50:57 +08:00
Bin Meng
594d089c8a x86: irq: Change LINK_V2N and LINK_N2V to inline functions
LINK_V2N and LINK_N2V are currently defines, so they cannot handle
complex logics. Change to inline functions for future extension.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-06-13 09:50:57 +08:00
Bin Meng
bc728b1bc0 x86: irq: Remove chipset specific irq router drivers
At present there are 3 irq router drivers. One is the common one
and the other two are chipset specific for queensbay and quark.
However these are really the same drivers as the core logic is
the same. The two chipset specific drivers configure some registers
that are outside the irq router block which should really be part
of the chipset initialization.

Now we remove these specific drivers and make all x86 boards use
the common one.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-06-13 09:50:57 +08:00