On 11/26/20 7:40 PM, Sughosh Ganu wrote:
Scan the pci bus in board_init routine before scanning the virtio
devices. This enumerates all the virtio devices, including devices
found on the pci bus.
Signed-off-by: Sughosh Ganu <sughosh.g...@linaro.org>
---
board/emulation/qemu-arm/qemu-arm.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/board/emulation/qemu-arm/qemu-arm.c
b/board/emulation/qemu-arm/qemu-arm.c
index e146d1cc50..b3d5b3d5c2 100644
--- a/board/emulation/qemu-arm/qemu-arm.c
+++ b/board/emulation/qemu-arm/qemu-arm.c
@@ -65,6 +65,14 @@ struct mm_region *mem_map = qemu_arm64_mem_map;
int board_init(void)
{
+
+ /*
+ * Scan the pci bus before calling virtio_init. This
+ * enumerates all virtio devices, including devices
+ * on the pci bus.
+ */
+ pci_init();
This does not compile if CONFIG_PCI=n.
aarch64-linux-gnu-ld.bfd:
board/emulation/qemu-arm/built-in.o:
in function `board_init':
board/emulation/qemu-arm/qemu-arm.c:74:
undefined reference to `pci_init'
Cf.
arch/arm/mach-mvebu/arm64-common.c-106-#ifdef CONFIG_DM_PCI
board/socrates/socrates.c-134-#if defined(CONFIG_DM_PCI)
I found these lines in common/board_r.c:250
#ifdef CONFIG_PCI
static int initr_pci(void)
{
if (IS_ENABLED(CONFIG_PCI_INIT_R))
pci_init();
return 0;
}
#endif
Would selecting CONFIG_PCI_INIT_R be enough to solve your problem?
Best regards
Heinrich
+
/*
* Make sure virtio bus is enumerated so that peripherals
* on the virtio bus can be discovered by their drivers
