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 <[email protected]>
---

 board/efi/efi-x86_payload/Kconfig   |  1 +
 board/efi/efi-x86_payload/Makefile  |  2 +-
 board/efi/efi-x86_payload/payload.c | 18 ++++++++++++++++++
 3 files changed, 20 insertions(+), 1 deletion(-)
 create mode 100644 board/efi/efi-x86_payload/payload.c

diff --git a/board/efi/efi-x86_payload/Kconfig 
b/board/efi/efi-x86_payload/Kconfig
index b6e57b9..08dd0c2 100644
--- a/board/efi/efi-x86_payload/Kconfig
+++ b/board/efi/efi-x86_payload/Kconfig
@@ -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
diff --git a/board/efi/efi-x86_payload/Makefile 
b/board/efi/efi-x86_payload/Makefile
index 6982340..00ef695 100644
--- a/board/efi/efi-x86_payload/Makefile
+++ b/board/efi/efi-x86_payload/Makefile
@@ -2,4 +2,4 @@
 #
 # Copyright (C) 2018, Bin Meng <[email protected]>
 
-obj-y  += start.o
+obj-y  += start.o payload.o
diff --git a/board/efi/efi-x86_payload/payload.c 
b/board/efi/efi-x86_payload/payload.c
new file mode 100644
index 0000000..4eeb49a
--- /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 <[email protected]>
+ */
+
+#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;
+}
-- 
2.7.4

_______________________________________________
U-Boot mailing list
[email protected]
https://lists.denx.de/listinfo/u-boot

Reply via email to