Hi Caleb, On Sun, 24 Nov 2024 at 13:27, Caleb Connolly <[email protected]> wrote: > > This series implements support for launching U-Boot as an EFI payload on > ARM64 devices that already have an EFI capable bootloader. > > Patches 9 through 14 in tandem with another series [1] provide all the > pieces necessary to build and run U-Boot on Snapdragon X Elite laptops. > They're only here to demonstrate the usecase and either already have or > will be sent separately, they should not be reviewed as part of this > RFC. > > Initial support is provided for: > * Building U-Boot with an EFI stub on ARM64 > * Inheriting DRAM banks from the EFI memory map > * Creating a framebuffer node in the OF tree based on EFI GOP info > > This allows for booting Linux on top of U-Boot's EFI implementation on > Qualcomm Snapdragon X Elite platforms. > > The primary motivation for this is to provide a more standard EFI > interface on devices like Qualcomm powered Windows laptops. While these > devices ship an EFI capable bootloader, it has no understanding of > devicetree, requiring distros (or more often, users) to handle > devicetree selection and applying necessary fixups. > > Additionally, the EFI implementation on these devices is often very far > from being systemready compliant, with a variety of bugs like broken > keyboards, crashes in OS loaders like systemd-boot, and other small > idiosyncrocies. > > As a result, simply running U-Boot as an EFI app isn't a suitable > solution. > > [1]: [email protected] > > --- > Caleb Connolly (10): > cmd: efi: avoid unitialized read > efi: stub: support running U-Boot as an EFI payload on ARM64 > efi: move efi_info_get() to a new header file > efi: stub: add helpers to populate memory map and framebuffer > efi: stub: add additional types of memory > efi: stub: log EFI memory banks > efi: stub: add known memory to U-Boot's EFI memory map > mach-snapdragon: support booting with EFISTUB > common/board_f: init malloc earlier > configs: add x1e_defconfig > > Neil Armstrong (4): > clk: qcom: Add X1E80100 clock driver > qcom_defconfig: enable X1E80100 clock driver > pinctrl: qcom: Add X1E80100 pinctrl driver > qcom_defconfig: enable X1E80100 pinctrl driver > > Makefile | 15 +- > arch/arm/cpu/armv8/config.mk | 11 + > arch/arm/include/asm/global_data.h | 3 + > arch/arm/lib/Makefile | 2 + > arch/arm/mach-snapdragon/board.c | 15 ++ > arch/arm/mach-snapdragon/dram.c | 15 +- > arch/arm/mach-snapdragon/qcom-priv.h | 2 + > arch/x86/cpu/efi/payload.c | 32 +-- > board/qualcomm/efistub.env | 11 + > cmd/efi.c | 3 +- > common/board_f.c | 2 +- > configs/qcom_defconfig | 2 + > configs/x1e_defconfig | 17 ++ > drivers/clk/qcom/Kconfig | 8 + > drivers/clk/qcom/Makefile | 1 + > drivers/clk/qcom/clock-x1e80100.c | 348 > ++++++++++++++++++++++++++++++++ > drivers/pinctrl/qcom/Kconfig | 7 + > drivers/pinctrl/qcom/Makefile | 1 + > drivers/pinctrl/qcom/pinctrl-x1e80100.c | 100 +++++++++ > drivers/video/efi.c | 1 + > include/efi.h | 27 +-- > include/efi_stub.h | 67 ++++++ > lib/efi/Kconfig | 9 +- > lib/efi/Makefile | 28 ++- > lib/efi/efi_app.c | 1 + > lib/efi/efi_info.c | 165 +++++++++++++++ > lib/efi/efi_stub_arm64.c | 237 ++++++++++++++++++++++ > lib/efi/{efi_stub.c => efi_stub_x86.c} | 1 + > lib/efi_loader/efi_memory.c | 5 + > lib/of_live.c | 9 + > 30 files changed, 1072 insertions(+), 73 deletions(-) > --- > base-commit: 1e327ec30e48902fff65fb58337b8f80cc526f08 >
I am pulling this in as I need to get the app going on ARM and this is a better starting point. For the series, applied to sjg/master, thanks! Regards, SImon
