x86: Support QEMU x86 targets
This commit introduces the initial U-Boot support for QEMU x86 targets.
U-Boot can boot from coreboot as a payload, or directly without coreboot.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Merged in patch 'x86: qemu: Add CMD_NET to qemu-x86_defconfig
https://patchwork.ozlabs.org/patch/479745/
diff --git a/board/emulation/Kconfig b/board/emulation/Kconfig
new file mode 100644
index 0000000..36809fd
--- /dev/null
+++ b/board/emulation/Kconfig
@@ -0,0 +1,25 @@
+#
+# Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+if VENDOR_EMULATION
+
+choice
+ prompt "Mainboard model"
+
+config TARGET_QEMU_X86
+ bool "QEMU x86"
+ help
+ This is the QEMU emulated x86 board. U-Boot supports running
+ as a coreboot payload as well as bare boot without coreboot.
+ There are two types of x86 boards supported by QEMU which are
+ supported by U-Boot. They are via QEMU '-M pc', an i440FX/PIIX
+ chipset platform and '-M q35', a Q35/ICH9 chipset platform.
+
+endchoice
+
+source "board/emulation/qemu-x86/Kconfig"
+
+endif
diff --git a/board/emulation/qemu-x86/Kconfig b/board/emulation/qemu-x86/Kconfig
new file mode 100644
index 0000000..e777ef4
--- /dev/null
+++ b/board/emulation/qemu-x86/Kconfig
@@ -0,0 +1,24 @@
+if TARGET_QEMU_X86
+
+config SYS_BOARD
+ default "qemu-x86"
+
+config SYS_VENDOR
+ default "emulation"
+
+config SYS_SOC
+ default "qemu"
+
+config SYS_CONFIG_NAME
+ default "qemu-x86"
+
+config SYS_TEXT_BASE
+ default 0xfff00000
+
+config BOARD_SPECIFIC_OPTIONS # dummy
+ def_bool y
+ select X86_RESET_VECTOR
+ select QEMU
+ select BOARD_ROMSIZE_KB_1024
+
+endif
diff --git a/board/emulation/qemu-x86/MAINTAINERS b/board/emulation/qemu-x86/MAINTAINERS
new file mode 100644
index 0000000..ea4dd19
--- /dev/null
+++ b/board/emulation/qemu-x86/MAINTAINERS
@@ -0,0 +1,6 @@
+QEMU X86 BOARD
+M: Bin Meng <bmeng.cn@gmail.com>
+S: Maintained
+F: board/emulation/qemu-x86/
+F: include/configs/qemu-x86.h
+F: configs/qemu-x86_defconfig
diff --git a/board/emulation/qemu-x86/Makefile b/board/emulation/qemu-x86/Makefile
new file mode 100644
index 0000000..ad2bbb9
--- /dev/null
+++ b/board/emulation/qemu-x86/Makefile
@@ -0,0 +1,7 @@
+#
+# Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+obj-y += qemu-x86.o start.o
diff --git a/board/emulation/qemu-x86/qemu-x86.c b/board/emulation/qemu-x86/qemu-x86.c
new file mode 100644
index 0000000..fedea81
--- /dev/null
+++ b/board/emulation/qemu-x86/qemu-x86.c
@@ -0,0 +1,13 @@
+/*
+ * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <netdev.h>
+
+int board_eth_init(bd_t *bis)
+{
+ return pci_eth_init(bis);
+}
diff --git a/board/emulation/qemu-x86/start.S b/board/emulation/qemu-x86/start.S
new file mode 100644
index 0000000..a71db69
--- /dev/null
+++ b/board/emulation/qemu-x86/start.S
@@ -0,0 +1,9 @@
+/*
+ * Copyright (C) 2015, Bin Meng <bmeng.cn@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+.globl early_board_init
+early_board_init:
+ jmp early_board_init_ret