This series supports running U-Boot as a payload on sc7180 Trogdor Chromebooks like Lazor or Wormdingler. This is a jumble of different patches to get to the final goal of booting a Linux distro from the eMMC on Lazor. I'm able to boot Fedora Workstation 41 from a USB stick on my Lazor.
I moved the reviewed patch to the start. After that one line fix there's a few patches to add support for the particular SoC used on Trogdor devices, sc7180. The next set of patches move the coreboot logic out of arch/x86/ into lib/ to find the coreboot tables on ARM and stash them in global data. Then I have a handful of patches to let the coreboot commands and utilities parse and populate various things like pstore and firmware details into the DTB with the proper data from the coreboot tables. Finally, I add the calls to coreboot dram parsing code in the snapdragon board so that if coreboot tables exist we get the memory info from coreboot instead of from an earlier stage DTB. I tested the SPI driver with the crosec command. The cros bootflow method almost works, but it seems like chromeos userspace blows up spectacularly likely because crossystem can't figure out what board it is running on. I don't really care too much about booting chromeos userspace here so I'm ignoring that problem. I'm able to install fedora on Lazor with this as long as I start the USB with CONFIG_PREBOOT=y. I tried to get this working on SC7280 Hoglin but it crashed in Fedora. I'm not sure why but it could be because the memory stuff was all wrong. Either way I hope it may work in the near future. The display is almost there but I suspect I'll need to do the whole initialization all over again so I punted for now. TODO: * Get display working * Implement FIT FDT picking similar to depthcharge based on coreboot tables indicating the SKU and board id Changes from v3 https://lore.kernel.org/r/20250428192427.3877612-1-swb...@chromium.org * GPIO chipselect in the SPI driver support * sc7280 clk driver support for UART * Enable the UART clk at probe * Read VPD and inject the wifi MAC address * Patch to inject wifi MAC from the environment * Add a debug_board_init routine for trogdor to support early debug * Add a defconfig Changes from v2 https://lore.kernel.org/r/20250226221607.1283592-1-swb...@chromium.org * Check SPI proto in probe * Handle pins differently in pinctrl driver * Pick up tags * Rebase to ToT * Update pinctrl driver for new changes in last few months * Add some more gates to clk driver to handle missing clk warnings * New patch to locate coreboot tables early Changes from v1 https://lore.kernel.org/r/20250220205900.3127680-1-swb...@chromium.org * Add Kconfig file in lib/coreboot/ to hold the coreboot config stuff similar to EFI * Couple new patches for ximg to support extracting the FDT from chromeos kernel partitions * Move the timestamp file out of arch/x86 as well in a different patch Stephen Boyd (28): bootstd: cros: Return negative error code clk: qcom: Add driver for sc7180 clk/stub: Add sc7180-rpmh clock clk: qcom: Support uart clk on sc7280 CRD pinctrl: qcom: Add driver for sc7180 spi: Add Qualcomm GENI SPI driver serial: msm-geni: Enable SE clk in probe coreboot: Move coreboot logic out of x86 to a generic place coreboot: Set gd->ram_base when parsing tables coreboot: Locate table earlier than arch_cpu_init() arm: Support running U-Boot as a coreboot payload on ARM64 cmd/cbsysinfo: Skip the CMOS 'option_table' when not present cmd/cbsysinfo: Allow on ARM as well coreboot: Parse sku_id/fw_config from coreboot tables pstore: Add pstore address from coreboot tables coreboot: Add /firmware/coreboot node to DT coreboot: Move timestamp parsing to generic place coreboot: Dump VPD information in cbsysinfo command coreboot: Set serial# from VPD coreboot: Set wifi mac addr from VPD fdt: Populate wifi MAC from environment mach-snapdragon: Support booting as a coreboot payload mach-snapdragon: Allow usb3 to work when a coreboot payload board: google: Add board_debug_uart_init() for Trogdor cmd: ximg: Support LZO compressed images cmd: ximg: Support LZ4 compressed images configs: Add chromebook_trogdor defconfig doc: chromebook_trogdor: Add document detailing installation steps arch/arm/cpu/armv8/Makefile | 1 + arch/arm/cpu/armv8/coreboot/Makefile | 4 + arch/arm/cpu/armv8/coreboot/cpu.c | 22 + arch/arm/include/asm/global_data.h | 3 + arch/arm/mach-snapdragon/board.c | 23 + arch/arm/mach-snapdragon/of_fixup.c | 22 +- arch/x86/Kconfig | 22 - arch/x86/cpu/coreboot/Kconfig | 33 - arch/x86/cpu/coreboot/Makefile | 1 - arch/x86/cpu/coreboot/coreboot.c | 16 +- arch/x86/cpu/coreboot/sdram.c | 78 +-- arch/x86/cpu/cpu.c | 15 +- arch/x86/cpu/i386/cpu.c | 2 +- arch/x86/lib/bootm.c | 5 +- arch/x86/lib/coreboot/Makefile | 1 - arch/x86/lib/coreboot/cb_support.c | 2 +- arch/x86/lib/coreboot_table.c | 2 +- arch/x86/lib/tables.c | 2 +- arch/x86/lib/zimage.c | 3 - board/coreboot/coreboot/coreboot.c | 2 +- board/coreboot/coreboot/sysinfo.c | 2 +- board/google/chromebook_coral/coral.c | 2 +- board/google/trogdor/Makefile | 3 + board/google/trogdor/debug.config | 6 + board/google/trogdor/debug_uart.c | 41 ++ boot/Kconfig | 1 + boot/bootmeth_cros.c | 2 +- boot/expo_build_cb.c | 2 +- boot/fdt_support.c | 54 +- boot/image-fdt.c | 4 + cmd/Kconfig | 4 +- cmd/Makefile | 1 + cmd/{x86 => }/cbsysinfo.c | 40 +- cmd/pstore.c | 51 +- cmd/version.c | 2 +- cmd/x86/Makefile | 1 - cmd/x86/cbcmos.c | 2 +- cmd/ximg.c | 28 + common/board_f.c | 4 + configs/chromebook_trogdor_defconfig | 138 +++++ doc/board/google/chromebook_trogdor.rst | 69 +++ doc/board/google/index.rst | 1 + drivers/clk/clk-stub.c | 1 + drivers/clk/qcom/Kconfig | 8 + drivers/clk/qcom/Makefile | 1 + drivers/clk/qcom/clock-sc7180.c | 153 +++++ drivers/clk/qcom/clock-sc7280.c | 22 + drivers/misc/cbmem_console.c | 2 +- drivers/pinctrl/qcom/Kconfig | 8 + drivers/pinctrl/qcom/Makefile | 1 + drivers/pinctrl/qcom/pinctrl-sc7180.c | 133 ++++ drivers/serial/serial_coreboot.c | 2 +- drivers/serial/serial_msm_geni.c | 26 +- drivers/spi/Kconfig | 10 + drivers/spi/Makefile | 1 + drivers/spi/spi-geni-qcom.c | 569 ++++++++++++++++++ drivers/video/coreboot.c | 2 +- .../x86/include/asm => include}/cb_sysinfo.h | 51 +- .../include/asm => include}/coreboot_tables.h | 24 + .../coreboot_timestamp.h | 9 +- lib/Makefile | 2 + lib/coreboot/Kconfig | 55 ++ {arch/x86/cpu => lib}/coreboot/Makefile | 11 +- {arch/x86/lib => lib}/coreboot/cb_sysinfo.c | 288 ++++++++- {arch/x86/cpu => lib}/coreboot/sdram.c | 25 +- {arch/x86/cpu => lib}/coreboot/timestamp.c | 15 +- 66 files changed, 1863 insertions(+), 273 deletions(-) create mode 100644 arch/arm/cpu/armv8/coreboot/Makefile create mode 100644 arch/arm/cpu/armv8/coreboot/cpu.c delete mode 100644 arch/x86/cpu/coreboot/Kconfig create mode 100644 board/google/trogdor/Makefile create mode 100644 board/google/trogdor/debug.config create mode 100644 board/google/trogdor/debug_uart.c rename cmd/{x86 => }/cbsysinfo.c (93%) create mode 100644 configs/chromebook_trogdor_defconfig create mode 100644 doc/board/google/chromebook_trogdor.rst create mode 100644 drivers/clk/qcom/clock-sc7180.c create mode 100644 drivers/pinctrl/qcom/pinctrl-sc7180.c create mode 100644 drivers/spi/spi-geni-qcom.c rename {arch/x86/include/asm => include}/cb_sysinfo.h (86%) rename {arch/x86/include/asm => include}/coreboot_tables.h (96%) rename arch/x86/include/asm/arch-coreboot/timestamp.h => include/coreboot_timestamp.h (63%) create mode 100644 lib/coreboot/Kconfig copy {arch/x86/cpu => lib}/coreboot/Makefile (71%) rename {arch/x86/lib => lib}/coreboot/cb_sysinfo.c (62%) copy {arch/x86/cpu => lib}/coreboot/sdram.c (84%) rename {arch/x86/cpu => lib}/coreboot/timestamp.c (83%) base-commit: 9d3f1ebaf8751f0287b5d02158cc706435f8fb19 -- Sent by a computer, using git, on the internet
