[PATCH 00/17] Implement ACPI on aarch64

Patrick Rudolph patrick.rudolph at 9elements.com
Sat Jul 27 09:17:01 CEST 2024


Based on the existing work done by Simon Glass this series adds
support for booting aarch64 devices using ACPI only. As target the
Raspberry Pi4 was used, which is broadly available and allows easy
testing of the proposed solution.

The series is split into ACPI cleanups and code movements, adding
Arm specific ACPI tables and finally SoC and mainboard related
changes to boot a Linux on the RPi4. Currently only the mandatory
ACPI tables are supported, allowing to boot into Linux without errors.

The changes were tested on real hardware as well on QEMU v9.0:

qemu-system-aarch64 -machine raspi4b -kernel u-boot.bin -cpu cortex-a72 \
-smp 4 -m 2G -drive file=raspbian.img,format=raw,index=0 \
-dtb bcm2711-rpi-4-b.dtb -nographic

Please note that the current implementation still requires a DTB to be
provided to U-Boot and that the DTB is used within U-Boot to load drivers,
to disable/enable certain hardware blocks in ACPI. The DTB is not passed
to the OS when using the bootefi cmd.

Tested against FWTS V24.03.00.

Known issues:
- The QEMU support is currently limited as it doesn't emulate PCI, USB or
  ethernet devices!
- The SMP bringup doesn't work on real hardware, but works in QEMU.
- PCI isn't working on real hardware since the pcie_brcmstb Linux kernel
  module doesn't support ACPI yet.

Maximilian Brune (3):
  acpi: x86: Move SPCR and DBG2 into common code
  acpi: x86: Write FADT in common code
  serial: serial_pl01x: Implement .getinfo() for PL01

Patrick Rudolph (12):
  acpi: x86: Move MADT to common code
  acpi: Fix typo
  acpi: Add define for GTDT
  arm: acpi: Add generic ACPI methods
  acpi: acpi_table: Bump revisions
  acpi: Add ACPITAB for PPTT and GTDT
  arm: mach-bcm283x: Map the ARM local MMIO as well
  arm: bcm283x: Write ACPI tables
  arm: cpu: Add ACPI parking protocol support
  arm: mach-bcm283x: Add ARMV8_MULTIENTRY support
  arm: mach-bcm283x: Enable ARMV8_MULTIENTRY
  configs: Add RPI4 ACPI defconfig

Simon Glass (2):
  arm: mach-bcm283x: Bring in some header files from tianocore
  board: raspberrypi: Add ASL files from tianocore

 arch/arm/cpu/armv8/Makefile                   |   1 +
 arch/arm/cpu/armv8/parking_protocol_v8.S      | 102 +++++
 arch/arm/cpu/armv8/start.S                    |   4 +
 arch/arm/include/asm/acpi_table.h             |  70 ++++
 arch/arm/lib/Makefile                         |   1 +
 arch/arm/lib/acpi_table.c                     | 131 ++++++
 arch/arm/mach-bcm283x/Kconfig                 |   4 +
 arch/arm/mach-bcm283x/Makefile                |   4 +
 arch/arm/mach-bcm283x/bcm2711_acpi.c          | 172 ++++++++
 .../mach-bcm283x/include/mach/acpi/bcm2711.h  | 152 +++++++
 .../mach-bcm283x/include/mach/acpi/bcm2836.h  | 127 ++++++
 .../include/mach/acpi/bcm2836_gpio.h          |  19 +
 .../include/mach/acpi/bcm2836_gpu.h           |  47 +++
 .../include/mach/acpi/bcm2836_pwm.h           |  33 ++
 .../include/mach/acpi/bcm2836_sdhost.h        |  18 +
 .../include/mach/acpi/bcm2836_sdio.h          |  21 +
 arch/arm/mach-bcm283x/init.c                  |  79 +++-
 arch/sandbox/lib/Makefile                     |   9 +-
 arch/sandbox/lib/acpi_table.c                 |   7 +
 arch/x86/cpu/apollolake/acpi.c                |  20 +-
 arch/x86/cpu/baytrail/acpi.c                  |  17 +-
 arch/x86/cpu/intel_common/acpi.c              |  20 +-
 arch/x86/cpu/quark/acpi.c                     |  19 +-
 arch/x86/cpu/tangier/acpi.c                   |  31 +-
 arch/x86/include/asm/acpi_table.h             |  26 +-
 arch/x86/lib/acpi_table.c                     | 243 +-----------
 board/raspberrypi/rpi/.gitignore              |   3 +
 board/raspberrypi/rpi/Makefile                |   2 +
 board/raspberrypi/rpi/acpitables.h            |  91 +++++
 board/raspberrypi/rpi/dsdt.asl                | 290 ++++++++++++++
 board/raspberrypi/rpi/emmc.asl                | 136 +++++++
 board/raspberrypi/rpi/gpudevs.asl             | 372 ++++++++++++++++++
 board/raspberrypi/rpi/pci.asl                 | 177 +++++++++
 board/raspberrypi/rpi/pep.asl                 |  90 +++++
 board/raspberrypi/rpi/rhpx.asl                | 195 +++++++++
 board/raspberrypi/rpi/rpi.c                   | 182 +++++++++
 board/raspberrypi/rpi/sdhc.asl                | 111 ++++++
 board/raspberrypi/rpi/uart.asl                | 208 ++++++++++
 boot/bootflow.c                               |   8 +-
 configs/rpi_4_acpi_defconfig                  |  79 ++++
 drivers/pci/pcie_brcmstb.c                    | 101 +----
 drivers/serial/serial_pl01x.c                 |  24 ++
 include/acpi/acpi_table.h                     | 107 +++--
 include/serial.h                              |   1 +
 lib/Kconfig                                   |  15 +
 lib/acpi/acpi_table.c                         | 317 ++++++++++++++-
 46 files changed, 3414 insertions(+), 472 deletions(-)
 create mode 100644 arch/arm/cpu/armv8/parking_protocol_v8.S
 create mode 100644 arch/arm/lib/acpi_table.c
 create mode 100644 arch/arm/mach-bcm283x/bcm2711_acpi.c
 create mode 100644 arch/arm/mach-bcm283x/include/mach/acpi/bcm2711.h
 create mode 100644 arch/arm/mach-bcm283x/include/mach/acpi/bcm2836.h
 create mode 100644 arch/arm/mach-bcm283x/include/mach/acpi/bcm2836_gpio.h
 create mode 100644 arch/arm/mach-bcm283x/include/mach/acpi/bcm2836_gpu.h
 create mode 100644 arch/arm/mach-bcm283x/include/mach/acpi/bcm2836_pwm.h
 create mode 100644 arch/arm/mach-bcm283x/include/mach/acpi/bcm2836_sdhost.h
 create mode 100644 arch/arm/mach-bcm283x/include/mach/acpi/bcm2836_sdio.h
 create mode 100644 arch/sandbox/lib/acpi_table.c
 create mode 100644 board/raspberrypi/rpi/.gitignore
 create mode 100644 board/raspberrypi/rpi/acpitables.h
 create mode 100644 board/raspberrypi/rpi/dsdt.asl
 create mode 100644 board/raspberrypi/rpi/emmc.asl
 create mode 100644 board/raspberrypi/rpi/gpudevs.asl
 create mode 100644 board/raspberrypi/rpi/pci.asl
 create mode 100644 board/raspberrypi/rpi/pep.asl
 create mode 100644 board/raspberrypi/rpi/rhpx.asl
 create mode 100644 board/raspberrypi/rpi/sdhc.asl
 create mode 100644 board/raspberrypi/rpi/uart.asl
 create mode 100644 configs/rpi_4_acpi_defconfig

-- 
2.45.2



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