[000/108] RFC: dm: Add programatic generation of ACPI tables

At present on x86 U-Boot supports creating ACPI (Advanced Configuration
and Power Interface) tables using the Intel ACPI Source Language (ASL)
compiler.

This is good enough for basic operation but some devices need to add
their information dynamically at runtime. An example is a device that
needs to report its enable GPIO. This is described in the device tree,
so we want to add code in the driver to convert that device-tree
description into an ACPI description for use on Linux.

This series adds support for generation of ACPI tables and fragments by
devices. The core support is built into driver model.

Several files are brought over from coreboot to do the actual generation.

As an example of using this new feature, chromebook_coral is updated to
write out a wide array of ACPI tables including DSDT and SSDT.

This initial version of the series lays out the general approach. More
work is needed to figure out the difference between CONFIG_ACPIGEN and
CONFIG_GENERATE_ACPI_TABLE with respect to what is built.


Simon Glass (108):
  cpu: Support querying the address width
  spi: Add SPI mode enums
  tpm: cr50: Release locality on exit
  tpm: cr50: Tidy up various comments
  tpm: cr50: Use the correct GPIO binding
  tpm: Don't cleanup unless an error happens
  dm: pci: Allow disabling auto-config for a device
  x86: Correct wording of coreboot source code
  x86: apl: Move p2sb ofdata reading to the correct method
  pci: Adjust dm_pci_read_bar32() to return errors correctly
  x86: apl: Add Global NVS table header
  dm: core: Add basic ACPI support
  acpi: Add a binding for ACPI settings in the device tree
  acpi: Add a simple sandbox test
  x86: Move acpi_table header to main include/ directory
  acpi: Add an __ACPI__ preprocessor symbol
  acpi: Add a central location for table version numbers
  acpi: Add support for DMAR
  acpi: Move acpi_fill_header() to generic code
  acpi: Add a method to write tables for a device
  acpi: Convert part of acpi_table to use acpi_ctx
  x86: Allow devices to write ACPI tables
  acpi: Drop code for missing XSDT from acpi_write_rsdp()
  acpi: Move acpi_add_table() to generic code
  acpi: Put table-setup code in its own function
  acpi: Move the xsdt pointer to acpi_ctx
  acpi: Add an acpi command
  acpi: Add some tables required by the generation code
  acpi: Add generation code for devices
  acpi: Add functions to generate ACPI code
  gpio: Add a method to convert a GPIO to ACPI
  irq: Add a method to convert an interrupt to ACPI
  acpi: Add support for SSDT generation
  x86: acpi: Move MADT up a bit
  acpi: Record the items added to SSDT
  acpi: Support ordering SSDT data by device
  x86: Allow devices to write an SSDT
  acpi: Add support for DSDT generation
  x86: Allow devices to write to DSDT
  dm: core: Add an ACPI name for the root node
  dm: acpi: Enhance acpi_get_name()
  acpi: Add an acpi split command
  acpi: Allow creating the GNVS to fail
  dtoc: Support ACPI paths in of-platdata
  acpi: mmc: Generate ACPI info for the PCI SD Card
  sound: Add an ACPI driver for Dialog Semicondutor da7219
  sound: Add an ACPI driver for Maxim MAX98357ac
  x86: pinctrl: Add a way to get the pinctrl reg address
  x86: pinctrl: Update comment for intel_pinctrl_get_pad()
  x86: pinctrl: Add multi-ACPI control
  x86: pinctrl: Set up itss in the probe() method
  x86: pinctrl: Drop the acpi_name member
  dm: core: Add a way of overriding the ACPI device path
  x86: gpio: Add support for obtaining ACPI info for a GPIO
  i2c: designware_i2c: Support ACPI table generation
  i2c: Add a generic driver to generate ACPI info
  p2sb: Add a method to hide the bus
  x86: apl: Support set_hide() in p2sb driver
  x86: apl: Hide the p2sb on exit from U-Boot
  pmc: Move common registers to the header file
  x86: irq: Support flags for acpi_gpe
  x86: Add debugging to table writing
  x86: Rename board_final_cleanup() to board_final_init()
  acpi: Enable ACPI table generation by default on x86
  acpi: Add cros_ec tables
  x86: acpi: Add base asl files for common x86 devices
  x86: acpi: apl: Add asl files for Apollo Lake
  x86: acpi: Add DPTF asl files
  x86: apl: Correct PCIE_ECAM_BASE
  x86: coral: Add ACPI tables for coral
  x86: acpi: Support external GNVS tables
  x86: acpi: Expand the GNVS
  x86: Add wake sources for the acpi_gpe driver
  x86: Add a config for the systemagent PCIEX regions size
  x86: apl: Support writing the IntelGraphicsMem table
  x86: acpi: Add a common routine to write WiFi info
  x86: Add some definitions for SMM
  x86: apl: Add power-management definitions
  x86: Add a common global NVS structure
  cpu: Convert the methods to use a const udevice *
  x86: apl: Update iomap for ACPI
  x86: Add a few common Intel CPU functions
  x86: acpi: Support generation of the HPET table
  x86: acpi: Support generation of the DBG2 table
  x86: acpi: Add common Intel ACPI tables
  x86: Support Atom SoCs using SWSMISCI rather than the SWSCI
  x86: apl: Add a check for reading the FSP-S config
  x86: apl: Store FSP-S config for later use
  p2sb: Add some definitions used for ACPI
  x86: apl: Add support for hostbridge ACPI generation
  x86: apl: Generate required ACPI tables
  x86: acpi: Add support for additional DMAR tables
  x86: apl: Generate CPU tables
  x86: apl: Generate ACPI table for LPC
  x86: apl: Drop unnecessary code in PMC driver
  tpm: cr50: Add ACPI support
  x86: fsp: Update the FSP API with the end-firmware method
  x86: cpu: Report address width from cpu_get_info()
  x86: Sort the MTRR table
  x86: Add a way to add to the e820 memory table
  x86: Notify the FSP of the 'end firmware' event
  x86: Add a layout for Chrome OS verified boot
  x86: Correct the assembly guard in e802.h
  x86: Add a header guard to asm/acpi_table.h
  x86: Correct handling of MADT table CPUs
  acpi: tpm: Add a TPM2 table
  acpi: tpm: Add a TPM1 table
  x86: coral: Update config and device tree for ACPI

 arch/Kconfig                                  |    1 +
 arch/nios2/cpu/cpu.c                          |    8 +-
 arch/sandbox/dts/test.dts                     |   14 +
 arch/sandbox/include/asm/acpi_table.h         |    9 +
 arch/sandbox/include/asm/global_data.h        |    1 +
 arch/x86/Kconfig                              |   47 +
 arch/x86/cpu/acpi_gpe.c                       |   22 +
 arch/x86/cpu/apollolake/Kconfig               |    4 +
 arch/x86/cpu/apollolake/Makefile              |    1 +
 arch/x86/cpu/apollolake/acpi.c                |  437 +++++
 arch/x86/cpu/apollolake/cpu.c                 |   27 +-
 arch/x86/cpu/apollolake/fsp_s.c               |  246 +--
 arch/x86/cpu/apollolake/hostbridge.c          |  104 +
 arch/x86/cpu/apollolake/lpc.c                 |   16 +
 arch/x86/cpu/apollolake/p2sb.c                |   73 +-
 arch/x86/cpu/apollolake/pmc.c                 |    8 +-
 arch/x86/cpu/baytrail/acpi.c                  |    6 +-
 arch/x86/cpu/baytrail/cpu.c                   |    4 +-
 arch/x86/cpu/broadwell/cpu_full.c             |    4 +-
 arch/x86/cpu/coreboot/coreboot.c              |    4 +-
 arch/x86/cpu/coreboot/timestamp.c             |    4 +-
 arch/x86/cpu/cpu.c                            |   23 +-
 arch/x86/cpu/cpu_x86.c                        |    6 +-
 arch/x86/cpu/efi/app.c                        |    2 +-
 arch/x86/cpu/i386/cpu.c                       |   23 +
 arch/x86/cpu/intel_common/Makefile            |    5 +
 arch/x86/cpu/intel_common/acpi.c              |  441 +++++
 arch/x86/cpu/intel_common/cpu.c               |   60 +
 arch/x86/cpu/intel_common/generic_wifi.c      |  119 ++
 arch/x86/cpu/intel_common/intel_opregion.c    |  168 ++
 arch/x86/cpu/ivybridge/model_206ax.c          |    5 +-
 arch/x86/cpu/mtrr.c                           |   12 +
 arch/x86/cpu/qemu/cpu.c                       |    4 +-
 arch/x86/cpu/quark/acpi.c                     |    6 +-
 arch/x86/cpu/quark/quark.c                    |    2 +-
 arch/x86/cpu/tangier/acpi.c                   |    6 +-
 arch/x86/dts/chromebook_coral.dts             |  207 +-
 arch/x86/include/asm/acpi/chromeos.asl        |  110 ++
 arch/x86/include/asm/acpi/cpu.asl             |   25 +
 arch/x86/include/asm/acpi/cros_ec/ac.asl      |   22 +
 arch/x86/include/asm/acpi/cros_ec/als.asl     |   56 +
 arch/x86/include/asm/acpi/cros_ec/battery.asl |  411 ++++
 arch/x86/include/asm/acpi/cros_ec/cros_ec.asl |   57 +
 arch/x86/include/asm/acpi/cros_ec/ec.asl      |  557 ++++++
 arch/x86/include/asm/acpi/cros_ec/emem.asl    |   53 +
 .../asm/acpi/cros_ec/keyboard_backlight.asl   |   52 +
 arch/x86/include/asm/acpi/cros_ec/pd.asl      |   15 +
 arch/x86/include/asm/acpi/cros_ec/superio.asl |  159 ++
 arch/x86/include/asm/acpi/cros_ec/tbmc.asl    |   23 +
 arch/x86/include/asm/acpi/cros_gnvs.asl       |   29 +
 arch/x86/include/asm/acpi/dptf/charger.asl    |   65 +
 arch/x86/include/asm/acpi/dptf/cpu.asl        |  186 ++
 arch/x86/include/asm/acpi/dptf/dptf.asl       |  121 ++
 arch/x86/include/asm/acpi/dptf/fan.asl        |   57 +
 arch/x86/include/asm/acpi/dptf/thermal.asl    |  521 +++++
 arch/x86/include/asm/acpi/global_nvs.h        |    5 +-
 arch/x86/include/asm/acpi/lpc.asl             |  141 ++
 arch/x86/include/asm/acpi/pci_osc.asl         |   21 +
 arch/x86/include/asm/acpi/pcr.asl             |   80 +
 arch/x86/include/asm/acpi/ramoops.asl         |   32 +
 arch/x86/include/asm/acpi/sleepstates.asl     |   12 +-
 arch/x86/include/asm/acpi/vbnv_layout.h       |   41 +
 arch/x86/include/asm/acpi_table.h             |  393 +---
 arch/x86/include/asm/arch-apollolake/acpi.h   |   13 +
 .../include/asm/arch-apollolake/acpi/dptf.asl |   35 +
 .../asm/arch-apollolake/acpi/globalnvs.asl    |   41 +
 .../include/asm/arch-apollolake/acpi/gpio.asl |  191 ++
 .../asm/arch-apollolake/acpi/gpiolib.asl      |  109 ++
 .../include/asm/arch-apollolake/acpi/lpss.asl |  105 +
 .../asm/arch-apollolake/acpi/northbridge.asl  |  120 ++
 .../asm/arch-apollolake/acpi/pch_hda.asl      |   77 +
 .../asm/arch-apollolake/acpi/pci_irqs.asl     |   52 +
 .../include/asm/arch-apollolake/acpi/pcie.asl |   22 +
 .../asm/arch-apollolake/acpi/pcie_port.asl    |  113 ++
 .../asm/arch-apollolake/acpi/platform.asl     |   10 +
 .../asm/arch-apollolake/acpi/pmc_ipc.asl      |   49 +
 .../include/asm/arch-apollolake/acpi/scs.asl  |  173 ++
 .../asm/arch-apollolake/acpi/soc_int.asl      |   50 +
 .../asm/arch-apollolake/acpi/southbridge.asl  |   34 +
 .../include/asm/arch-apollolake/acpi/xhci.asl |   33 +
 .../arch-apollolake/acpi/xhci_apl_ports.asl   |   23 +
 .../arch-apollolake/acpi/xhci_glk_ports.asl   |   24 +
 .../include/asm/arch-apollolake/global_nvs.h  |   44 +
 arch/x86/include/asm/arch-apollolake/gpe.h    |  134 ++
 arch/x86/include/asm/arch-apollolake/gpio.h   |    3 +
 arch/x86/include/asm/arch-apollolake/iomap.h  |   17 +
 arch/x86/include/asm/arch-apollolake/pm.h     |   56 +-
 .../include/asm/arch-apollolake/soc_config.h  |  221 +++
 .../include/asm/arch-apollolake/systemagent.h |    6 +
 .../x86/include/asm/arch-coreboot/timestamp.h |    4 +-
 arch/x86/include/asm/cpu.h                    |    9 +
 arch/x86/include/asm/cpu_common.h             |   32 +
 arch/x86/include/asm/cpu_x86.h                |    4 +-
 arch/x86/include/asm/e820.h                   |    3 +-
 arch/x86/include/asm/fsp/fsp_api.h            |   15 +-
 arch/x86/include/asm/global_data.h            |    2 +
 arch/x86/include/asm/intel_acpi.h             |   25 +
 arch/x86/include/asm/intel_gnvs.h             |   43 +
 arch/x86/include/asm/intel_opregion.h         |  247 +++
 arch/x86/include/asm/intel_pinctrl.h          |   19 +-
 arch/x86/include/asm/intel_pinctrl_defs.h     |    2 -
 arch/x86/include/asm/smm.h                    |   36 +
 arch/x86/lib/acpi.c                           |    2 +-
 arch/x86/lib/acpi_s3.c                        |    2 +-
 arch/x86/lib/acpi_table.c                     |  723 +++++--
 arch/x86/lib/fsp/fsp_common.c                 |   18 +-
 arch/x86/lib/fsp/fsp_dram.c                   |   16 +
 arch/x86/lib/fsp/fsp_graphics.c               |   28 +
 arch/x86/lib/tables.c                         |   37 +-
 arch/x86/lib/zimage.c                         |    2 +-
 board/google/chromebook_coral/Kconfig         |    2 +-
 board/google/chromebook_coral/Makefile        |    1 +
 .../chromebook_coral/baseboard_dptf.asl       |   71 +
 board/google/chromebook_coral/coral.c         |  104 +
 board/google/chromebook_coral/dsdt.asl        |   60 +
 .../google/chromebook_coral/variant_dptf.asl  |    6 +
 board/google/chromebook_coral/variant_ec.h    |   75 +
 board/google/chromebook_coral/variant_gpio.h  |   63 +
 cmd/Kconfig                                   |   14 +
 cmd/Makefile                                  |    1 +
 cmd/acpi.c                                    |  190 ++
 configs/chromebook_coral_defconfig            |   17 +-
 configs/sandbox_defconfig                     |    4 +
 doc/device-tree-bindings/chosen.txt           |   27 +
 doc/device-tree-bindings/device.txt           |   77 +
 .../gpio/intel,apl-gpio.txt                   |    2 +-
 doc/device-tree-bindings/i2c/generic-acpi.txt |   42 +
 .../interrupt-controller/intel,acpi-gpe.txt   |    2 +-
 doc/device-tree-bindings/pci/x86-pci.txt      |   24 +
 doc/device-tree-bindings/sound/da7219.txt     |  113 ++
 doc/device-tree-bindings/sound/max98357a.txt  |   22 +
 drivers/core/Kconfig                          |    9 +
 drivers/core/Makefile                         |    1 +
 drivers/core/acpi.c                           |  328 ++++
 drivers/core/root.c                           |   13 +
 drivers/cpu/bmips_cpu.c                       |    8 +-
 drivers/cpu/cpu-uclass.c                      |    8 +-
 drivers/cpu/cpu_sandbox.c                     |    9 +-
 drivers/cpu/imx8_cpu.c                        |    8 +-
 drivers/cpu/mpc83xx_cpu.c                     |   17 +-
 drivers/cpu/riscv_cpu.c                       |    6 +-
 drivers/gpio/gpio-uclass.c                    |   21 +
 drivers/gpio/intel_gpio.c                     |   46 +-
 drivers/i2c/Makefile                          |    3 +
 drivers/i2c/acpi_i2c.c                        |  228 +++
 drivers/i2c/acpi_i2c.h                        |   15 +
 drivers/i2c/designware_i2c.c                  |   25 +
 drivers/i2c/designware_i2c.h                  |   15 +
 drivers/i2c/designware_i2c_pci.c              |  104 +-
 drivers/i2c/i2c-uclass.c                      |   14 +
 drivers/misc/irq-uclass.c                     |   18 +-
 drivers/misc/p2sb-uclass.c                    |   26 +-
 drivers/mmc/pci_mmc.c                         |   76 +-
 drivers/pci/pci-uclass.c                      |   11 +-
 drivers/pinctrl/intel/Kconfig                 |    4 +
 drivers/pinctrl/intel/pinctrl.c               |   21 +-
 drivers/pinctrl/intel/pinctrl_apl.c           |    4 -
 drivers/power/acpi_pmc/acpi-pmc-uclass.c      |    9 -
 drivers/sound/Kconfig                         |   18 +
 drivers/sound/Makefile                        |    2 +
 drivers/sound/da7219.c                        |  115 ++
 drivers/sound/max98357a.c                     |  109 ++
 drivers/tpm/cr50_i2c.c                        |   83 +-
 drivers/tpm/tpm-uclass.c                      |   13 +-
 include/acpi_device.h                         |  746 ++++++++
 include/acpi_s3.h                             |    4 +
 include/acpi_table.h                          |  724 +++++++
 include/acpigen.h                             |  482 +++++
 include/asm-generic/gpio.h                    |   27 +
 include/bloblist.h                            |    8 +
 include/cpu.h                                 |   18 +-
 include/dm/acpi.h                             |  190 ++
 include/dm/device.h                           |    7 +-
 include/dm/uclass-id.h                        |    1 +
 .../interrupt-controller/x86-irq.h            |   14 +
 include/i2c.h                                 |   17 +
 include/irq.h                                 |   43 +
 include/log.h                                 |    2 +
 include/p2sb.h                                |   42 +-
 include/power/acpi_pmc.h                      |   14 +
 include/spi.h                                 |   33 +
 lib/Makefile                                  |    1 +
 lib/acpi/Makefile                             |    6 +
 lib/acpi/acpi_device.c                        | 1203 ++++++++++++
 lib/acpi/acpi_table.c                         |  258 +++
 lib/acpi/acpigen.c                            | 1683 +++++++++++++++++
 lib/efi_loader/efi_acpi.c                     |    2 +-
 scripts/Makefile.lib                          |    4 +-
 test/dm/Makefile                              |    1 +
 test/dm/acpi.c                                |  478 +++++
 test/dm/cpu.c                                 |    1 +
 tools/dtoc/dtb_platdata.py                    |    4 +-
 tools/dtoc/dtoc_test_simple.dts               |    1 +
 tools/dtoc/test_dtoc.py                       |    3 +
 194 files changed, 15704 insertions(+), 1014 deletions(-)
 create mode 100644 arch/sandbox/include/asm/acpi_table.h
 create mode 100644 arch/x86/cpu/apollolake/acpi.c
 create mode 100644 arch/x86/cpu/intel_common/acpi.c
 create mode 100644 arch/x86/cpu/intel_common/generic_wifi.c
 create mode 100644 arch/x86/cpu/intel_common/intel_opregion.c
 create mode 100644 arch/x86/include/asm/acpi/chromeos.asl
 create mode 100644 arch/x86/include/asm/acpi/cpu.asl
 create mode 100644 arch/x86/include/asm/acpi/cros_ec/ac.asl
 create mode 100644 arch/x86/include/asm/acpi/cros_ec/als.asl
 create mode 100644 arch/x86/include/asm/acpi/cros_ec/battery.asl
 create mode 100644 arch/x86/include/asm/acpi/cros_ec/cros_ec.asl
 create mode 100644 arch/x86/include/asm/acpi/cros_ec/ec.asl
 create mode 100644 arch/x86/include/asm/acpi/cros_ec/emem.asl
 create mode 100644 arch/x86/include/asm/acpi/cros_ec/keyboard_backlight.asl
 create mode 100644 arch/x86/include/asm/acpi/cros_ec/pd.asl
 create mode 100644 arch/x86/include/asm/acpi/cros_ec/superio.asl
 create mode 100644 arch/x86/include/asm/acpi/cros_ec/tbmc.asl
 create mode 100644 arch/x86/include/asm/acpi/cros_gnvs.asl
 create mode 100644 arch/x86/include/asm/acpi/dptf/charger.asl
 create mode 100644 arch/x86/include/asm/acpi/dptf/cpu.asl
 create mode 100644 arch/x86/include/asm/acpi/dptf/dptf.asl
 create mode 100644 arch/x86/include/asm/acpi/dptf/fan.asl
 create mode 100644 arch/x86/include/asm/acpi/dptf/thermal.asl
 create mode 100644 arch/x86/include/asm/acpi/lpc.asl
 create mode 100644 arch/x86/include/asm/acpi/pci_osc.asl
 create mode 100644 arch/x86/include/asm/acpi/pcr.asl
 create mode 100644 arch/x86/include/asm/acpi/ramoops.asl
 create mode 100644 arch/x86/include/asm/acpi/vbnv_layout.h
 create mode 100644 arch/x86/include/asm/arch-apollolake/acpi.h
 create mode 100644 arch/x86/include/asm/arch-apollolake/acpi/dptf.asl
 create mode 100644 arch/x86/include/asm/arch-apollolake/acpi/globalnvs.asl
 create mode 100644 arch/x86/include/asm/arch-apollolake/acpi/gpio.asl
 create mode 100644 arch/x86/include/asm/arch-apollolake/acpi/gpiolib.asl
 create mode 100644 arch/x86/include/asm/arch-apollolake/acpi/lpss.asl
 create mode 100644 arch/x86/include/asm/arch-apollolake/acpi/northbridge.asl
 create mode 100644 arch/x86/include/asm/arch-apollolake/acpi/pch_hda.asl
 create mode 100644 arch/x86/include/asm/arch-apollolake/acpi/pci_irqs.asl
 create mode 100644 arch/x86/include/asm/arch-apollolake/acpi/pcie.asl
 create mode 100644 arch/x86/include/asm/arch-apollolake/acpi/pcie_port.asl
 create mode 100644 arch/x86/include/asm/arch-apollolake/acpi/platform.asl
 create mode 100644 arch/x86/include/asm/arch-apollolake/acpi/pmc_ipc.asl
 create mode 100644 arch/x86/include/asm/arch-apollolake/acpi/scs.asl
 create mode 100644 arch/x86/include/asm/arch-apollolake/acpi/soc_int.asl
 create mode 100644 arch/x86/include/asm/arch-apollolake/acpi/southbridge.asl
 create mode 100644 arch/x86/include/asm/arch-apollolake/acpi/xhci.asl
 create mode 100644 arch/x86/include/asm/arch-apollolake/acpi/xhci_apl_ports.asl
 create mode 100644 arch/x86/include/asm/arch-apollolake/acpi/xhci_glk_ports.asl
 create mode 100644 arch/x86/include/asm/arch-apollolake/global_nvs.h
 create mode 100644 arch/x86/include/asm/arch-apollolake/gpe.h
 create mode 100644 arch/x86/include/asm/arch-apollolake/soc_config.h
 create mode 100644 arch/x86/include/asm/intel_acpi.h
 create mode 100644 arch/x86/include/asm/intel_gnvs.h
 create mode 100644 arch/x86/include/asm/intel_opregion.h
 create mode 100644 arch/x86/include/asm/smm.h
 create mode 100644 board/google/chromebook_coral/baseboard_dptf.asl
 create mode 100644 board/google/chromebook_coral/dsdt.asl
 create mode 100644 board/google/chromebook_coral/variant_dptf.asl
 create mode 100644 board/google/chromebook_coral/variant_ec.h
 create mode 100644 board/google/chromebook_coral/variant_gpio.h
 create mode 100644 cmd/acpi.c
 create mode 100644 doc/device-tree-bindings/device.txt
 create mode 100644 doc/device-tree-bindings/i2c/generic-acpi.txt
 create mode 100644 doc/device-tree-bindings/sound/da7219.txt
 create mode 100644 doc/device-tree-bindings/sound/max98357a.txt
 create mode 100644 drivers/core/acpi.c
 create mode 100644 drivers/i2c/acpi_i2c.c
 create mode 100644 drivers/i2c/acpi_i2c.h
 create mode 100644 drivers/sound/da7219.c
 create mode 100644 drivers/sound/max98357a.c
 create mode 100644 include/acpi_device.h
 create mode 100644 include/acpi_table.h
 create mode 100644 include/acpigen.h
 create mode 100644 include/dm/acpi.h
 create mode 100644 include/dt-bindings/interrupt-controller/x86-irq.h
 create mode 100644 lib/acpi/Makefile
 create mode 100644 lib/acpi/acpi_device.c
 create mode 100644 lib/acpi/acpi_table.c
 create mode 100644 lib/acpi/acpigen.c
 create mode 100644 test/dm/acpi.c

Hi

On Sun, 26 Jan 2020 at 22:07, Simon Glass <sjg at chromium.org> wrote:
>
> At present on x86 U-Boot supports creating ACPI (Advanced Configuration
> and Power Interface) tables using the Intel ACPI Source Language (ASL)
> compiler.
>
> This is good enough for basic operation but some devices need to add
> their information dynamically at runtime. An example is a device that
> needs to report its enable GPIO. This is described in the device tree,
> so we want to add code in the driver to convert that device-tree
> description into an ACPI description for use on Linux.
>
> This series adds support for generation of ACPI tables and fragments by
> devices. The core support is built into driver model.
>
> Several files are brought over from coreboot to do the actual generation.
>
> As an example of using this new feature, chromebook_coral is updated to
> write out a wide array of ACPI tables including DSDT and SSDT.
>
> This initial version of the series lays out the general approach. More
> work is needed to figure out the difference between CONFIG_ACPIGEN and
> CONFIG_GENERATE_ACPI_TABLE with respect to what is built.
>
>
> Simon Glass (108):
>   cpu: Support querying the address width

This is available at u-boot-dm/coral-working

Regards,
Simon