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arm: qemu: Enumerate virtio bus during early boot

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Currently devices on the virtio bus is not automatically enumerated,
which means peripherals on the virtio bus are not discovered by their
drivers. This uses board_init() to do the virtio enumeration.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng 2018-10-15 02:21:19 -07:00 committed by Simon Glass
parent 6f3327658b
commit b9b5956eb0
2 changed files with 14 additions and 0 deletions
board/emulation/qemu-arm
Kconfigqemu-arm.c

4
board/emulation/qemu-arm/Kconfig
View File

@ -5,5 +5,9 @@ config SYS_TEXT_BASE
config BOARD_SPECIFIC_OPTIONS # dummy
def_bool y
imply VIRTIO_MMIO
imply VIRTIO_PCI
imply VIRTIO_NET
imply VIRTIO_BLK
endif

10
board/emulation/qemu-arm/qemu-arm.c
View File

@ -2,8 +2,12 @@
/*
* Copyright (c) 2017 Tuomas Tynkkynen
*/
#include <common.h>
#include <dm.h>
#include <fdtdec.h>
#include <virtio_types.h>
#include <virtio.h>
#ifdef CONFIG_ARM64
#include <asm/armv8/mmu.h>
@ -58,6 +62,12 @@ struct mm_region *mem_map = qemu_arm64_mem_map;
int board_init(void)
{
/*
* Make sure virtio bus is enumerated so that peripherals
* on the virtio bus can be discovered by their drivers
*/
virtio_init();
return 0;
}