From 6d02cf0562ead596b20ce23f102be5c3020c04f9 Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Sun, 17 Jun 2018 05:57:52 -0700 Subject: [PATCH] x86: efi-x86_payload: Enumerate PCI bus during early boot 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 Reviewed-by: Simon Glass --- 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 diff --git a/board/efi/efi-x86_payload/Kconfig b/board/efi/efi-x86_payload/Kconfig index b6e57b9..08dd0c2 100644 --- a/board/efi/efi-x86_payload/Kconfig +++ b/board/efi/efi-x86_payload/Kconfig @@ -17,6 +17,7 @@ config SYS_TEXT_BASE config BOARD_SPECIFIC_OPTIONS # dummy def_bool y + select BOARD_EARLY_INIT_R imply SYS_NS16550 imply SCSI imply SCSI_AHCI diff --git a/board/efi/efi-x86_payload/Makefile b/board/efi/efi-x86_payload/Makefile index 6982340..00ef695 100644 --- a/board/efi/efi-x86_payload/Makefile +++ b/board/efi/efi-x86_payload/Makefile @@ -2,4 +2,4 @@ # # Copyright (C) 2018, Bin Meng -obj-y += start.o +obj-y += start.o payload.o diff --git a/board/efi/efi-x86_payload/payload.c b/board/efi/efi-x86_payload/payload.c new file mode 100644 index 0000000..4eeb49a --- /dev/null +++ b/board/efi/efi-x86_payload/payload.c @@ -0,0 +1,18 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2018, Bin Meng + */ + +#include +#include + +int board_early_init_r(void) +{ + /* + * Make sure PCI bus is enumerated so that peripherals on the PCI bus + * can be discovered by their drivers + */ + pci_init(); + + return 0; +}