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x86: efi-x86_payload: Enumerate PCI bus during early boot

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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>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng 2018-06-17 05:57:52 -07:00
parent ec15d5f6e5
commit 6d02cf0562
3 changed files with 20 additions and 1 deletions
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1
board/efi/efi-x86_payload/Kconfig
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@ -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

2
board/efi/efi-x86_payload/Makefile
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@ -2,4 +2,4 @@
#
# Copyright (C) 2018, Bin Meng <bmeng.cn@gmail.com>
obj-y += start.o
obj-y += start.o payload.o

18
board/efi/efi-x86_payload/payload.c Normal file
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@ -0,0 +1,18 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2018, Bin Meng <bmeng.cn@gmail.com>
*/
#include <common.h>
#include <usb.h>
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;
}