This series adds support for reusing existing barebox PCI drivers under
EFI. This means implementation of the EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL_GUID,
instead of EFI_PCI_IO_PROTOCOL_GUID, which abstracts the devices and
handles enumeration.
This was tested with the default QEMU x86_64 machine and OVMF (Tianocore)
as UEFI firmware and an emulated 8250_pci (driver included in this
series):
qemu-system-x86_64 -pflash OVMF.fd -device pci-serial,chardev=cdev0 \
-chardev file,id=cdev0,path=COM -nographic /dev/sdb
Driver is written against UEFI Specification 2.1D. This is my first
dabble with PCI controllers, so please take a more thorough look.
Thanks!
Ahmad
Ahmad Fatoum (9):
efi: add and use new efi_device_has_guid helper
driver: add missing parentheses around macro argument
efi: fix off-by-one in mem_malloc_init(..., end)
x86: efi: lds: don't discard any relocation sections
PCI: add driver_data member to struct pci_device_id
PCI: copy over some Linux PCI helpers
efi: turn set of defines into enumerations
pci: add EFI PCI root bridge IO protocol driver
serial: add support for PCI NS16550 UARTs
arch/x86/mach-efi/elf_x86_64_efi.lds.S | 7 +-
common/efi/efi.c | 2 +-
drivers/block/efi-block-io.c | 11 +-
drivers/efi/Kconfig | 1 +
drivers/efi/efi-device.c | 11 +-
drivers/pci/Kconfig | 5 +
drivers/pci/Makefile | 1 +
drivers/pci/bus.c | 26 +
drivers/pci/pci-efi.c | 311 ++
drivers/pci/pci-efi.h | 331 ++
drivers/serial/Kconfig | 8 +
drivers/serial/Makefile | 1 +
drivers/serial/serial_ns16550_pci.c | 5311 ++++++++++++++++++++++++
include/driver.h | 4 +-
include/efi.h | 42 +-
include/efi/efi-device.h | 12 +
include/linux/mod_devicetable.h | 1 +
include/linux/pci.h | 34 +
18 files changed, 6073 insertions(+), 46 deletions(-)
create mode 100644 drivers/pci/pci-efi.c
create mode 100644 drivers/pci/pci-efi.h
create mode 100644 drivers/serial/serial_ns16550_pci.c
--
2.24.0
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