Hi Bin,
On 17 June 2018 at 06:57, Bin Meng bmeng.cn@gmail.com wrote:
The generic efi payload currently does not enumerate the PCI bus, which means peripherals on the PCI bus are not discovered by their drivers. This uses board_early_init_r() to do the PCI enumeration.
Signed-off-by: Bin Meng bmeng.cn@gmail.com
board/efi/efi-x86_payload/Kconfig | 1 + board/efi/efi-x86_payload/Makefile | 2 +- board/efi/efi-x86_payload/payload.c | 18 ++++++++++++++++++ 3 files changed, 20 insertions(+), 1 deletion(-) create mode 100644 board/efi/efi-x86_payload/payload.c
I would like to consider adding a mechanism to indicate that a uclass should be inited (and its devices probed) on startup. This would be used for things which provide essential peripherals, which otherwise would not be visible in the initial driver-model bind process.
I am not sure whether this should be:
- a flag in the uclass - a flag in the BOARD driver (assuming we have a BOARD uclass soon) - a function call into DM - something else
But I think it is justified in the case of PCI, since some systems cannot find all their devices without scanning it.
What do you think?
Regards, Simon