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 <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

1 files changed, 18 insertions, 0 deletions

diff --git a/board/efi/efi-x86_payload/payload.c b/board/efi/efi-x86_payload/payload.c
new file mode 100644
index 0000000000..4eeb49a27a
--- /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 <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;
+}