[PATCH v2 00/15] Support to run U-Boot on sc7180 Trogdor Chromebooks
Stephen Boyd
swboyd at chromium.org
Wed Feb 26 23:15:46 CET 2025
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.
TODO:
* Get display working
* Implement FIT FDT picking similar to depthcharge based on coreboot
tables
Do I need to add a board/google/trogdor directory?
Changes from v1 https://lore.kernel.org/r/20250220205900.3127680-1-swboyd@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 (15):
bootstd: cros: Return negative error code
clk: qcom: Add driver for sc7180
pinctrl: qcom: Add driver for sc7180
spi: Add Qualcomm GENI SPI driver
coreboot: Move coreboot logic out of x86 to a generic place
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
mach-snapdragon: Support booting as a coreboot payload
cmd: ximg: Support LZO compressed images
cmd: ximg: Support LZ4 compressed images
arch/arm/cpu/armv8/Makefile | 1 +
arch/arm/cpu/armv8/coreboot/Makefile | 4 +
arch/arm/cpu/armv8/coreboot/cpu.c | 33 ++
arch/arm/include/asm/global_data.h | 3 +
arch/arm/mach-snapdragon/board.c | 18 +
arch/x86/Kconfig | 22 -
arch/x86/cpu/coreboot/Kconfig | 33 --
arch/x86/cpu/coreboot/Makefile | 1 -
arch/x86/cpu/coreboot/coreboot.c | 10 +-
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 +-
boot/Kconfig | 1 +
boot/bootmeth_cros.c | 2 +-
boot/expo_build_cb.c | 2 +-
boot/image-fdt.c | 4 +
cmd/Kconfig | 4 +-
cmd/Makefile | 1 +
cmd/{x86 => }/cbsysinfo.c | 6 +-
cmd/pstore.c | 44 +-
cmd/version.c | 2 +-
cmd/x86/Makefile | 1 -
cmd/x86/cbcmos.c | 2 +-
cmd/ximg.c | 28 +
drivers/clk/qcom/Kconfig | 8 +
drivers/clk/qcom/Makefile | 1 +
drivers/clk/qcom/clock-sc7180.c | 150 +++++
drivers/misc/cbmem_console.c | 2 +-
drivers/pinctrl/qcom/Kconfig | 7 +
drivers/pinctrl/qcom/Makefile | 1 +
drivers/pinctrl/qcom/pinctrl-sc7180.c | 106 ++++
drivers/serial/serial_coreboot.c | 2 +-
drivers/spi/Kconfig | 10 +
drivers/spi/Makefile | 1 +
drivers/spi/spi-geni-qcom.c | 527 ++++++++++++++++++
drivers/video/coreboot.c | 2 +-
.../x86/include/asm => include}/cb_sysinfo.h | 40 +-
.../include/asm => include}/coreboot_tables.h | 11 +
.../coreboot_timestamp.h | 9 +-
lib/Makefile | 2 +
lib/coreboot/Kconfig | 55 ++
{arch/x86/cpu => lib}/coreboot/Makefile | 9 +-
{arch/x86/lib => lib}/coreboot/cb_sysinfo.c | 163 +++++-
{arch/x86/cpu => lib}/coreboot/sdram.c | 15 +-
{arch/x86/cpu => lib}/coreboot/timestamp.c | 15 +-
54 files changed, 1244 insertions(+), 230 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
rename cmd/{x86 => }/cbsysinfo.c (99%)
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 (89%)
rename {arch/x86/include/asm => include}/coreboot_tables.h (98%)
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 (75%)
rename {arch/x86/lib => lib}/coreboot/cb_sysinfo.c (73%)
copy {arch/x86/cpu => lib}/coreboot/sdram.c (87%)
rename {arch/x86/cpu => lib}/coreboot/timestamp.c (83%)
base-commit: 313b9856f95419b01df7cc6b9a16f7b07d9fe13c
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