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
