From 3c5196dca5a639cfe88aae3baad3ecfc429adb49 Mon Sep 17 00:00:00 2001
From: Bin Meng <bmeng.cn@gmail.com>
Date: Mon, 15 Oct 2018 02:21:13 -0700
Subject: [PATCH] riscv: qemu: Enumerate virtio bus during early boot
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>
---
board/emulation/qemu-riscv/Kconfig | 3 +++
board/emulation/qemu-riscv/qemu-riscv.c | 9 +++++++++
2 files changed, 12 insertions(+)
diff --git a/board/emulation/qemu-riscv/Kconfig b/board/emulation/qemu-riscv/Kconfig
index af23363fcf7..5ae56da7645 100644
--- a/board/emulation/qemu-riscv/Kconfig
+++ b/board/emulation/qemu-riscv/Kconfig
@@ -18,5 +18,8 @@ config SYS_TEXT_BASE
config BOARD_SPECIFIC_OPTIONS # dummy
def_bool y
imply SYS_NS16550
+ imply VIRTIO_MMIO
+ imply VIRTIO_NET
+ imply VIRTIO_BLK
endif
diff --git a/board/emulation/qemu-riscv/qemu-riscv.c b/board/emulation/qemu-riscv/qemu-riscv.c
index 041e716c9bf..2730a288fb1 100644
--- a/board/emulation/qemu-riscv/qemu-riscv.c
+++ b/board/emulation/qemu-riscv/qemu-riscv.c
@@ -4,12 +4,21 @@
*/
#include <common.h>
+#include <dm.h>
#include <fdtdec.h>
+#include <virtio_types.h>
+#include <virtio.h>
#define MROM_FDT_ADDR 0x1020
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;
}
--
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