It is possible to create a generic EFI payload for all x86 boards.
The payload is configured to include as many generic drivers as
possible. All stuff that touches low-level initialization are not
allowed as such is the EFI BIOS's responsibility. Platform specific
drivers (like gpio, spi, etc) are not included.
Signed-off-by: Bin Meng <bmeng...@gmail.com>
---
arch/x86/dts/Makefile | 1 +
arch/x86/dts/efi-x86_payload.dts | 36 +++++++++++++++++++++++++++++++++
board/efi/Kconfig | 9 +++++++++
board/efi/efi-x86_payload/Kconfig | 38 +++++++++++++++++++++++++++++++++++
board/efi/efi-x86_payload/MAINTAINERS | 7 +++++++
board/efi/efi-x86_payload/Makefile | 5 +++++
board/efi/efi-x86_payload/start.S | 8 ++++++++
configs/efi-x86_payload32_defconfig | 35 ++++++++++++++++++++++++++++++++
configs/efi-x86_payload64_defconfig | 36 +++++++++++++++++++++++++++++++++
include/configs/efi-x86_payload.h | 32 +++++++++++++++++++++++++++++
10 files changed, 207 insertions(+)
create mode 100644 arch/x86/dts/efi-x86_payload.dts
create mode 100644 board/efi/efi-x86_payload/Kconfig
create mode 100644 board/efi/efi-x86_payload/MAINTAINERS
create mode 100644 board/efi/efi-x86_payload/Makefile
create mode 100644 board/efi/efi-x86_payload/start.S
create mode 100644 configs/efi-x86_payload32_defconfig
create mode 100644 configs/efi-x86_payload64_defconfig
create mode 100644 include/configs/efi-x86_payload.h
diff --git a/arch/x86/dts/Makefile b/arch/x86/dts/Makefile
index 7379774..9872c04 100644
--- a/arch/x86/dts/Makefile
+++ b/arch/x86/dts/Makefile
@@ -11,6 +11,7 @@ dtb-y += bayleybay.dtb \
dfi-bt700-q7x-151.dtb \
edison.dtb \
efi.dtb \
+ efi-x86_payload.dtb \
galileo.dtb \
minnowmax.dtb \
qemu-x86_i440fx.dtb \
diff --git a/arch/x86/dts/efi-x86_payload.dts b/arch/x86/dts/efi-x86_payload.dts
new file mode 100644
index 0000000..137bde5
--- /dev/null
+++ b/arch/x86/dts/efi-x86_payload.dts
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2018, Bin Meng <bmeng...@gmail.com>
+ *
+ * Generic EFI payload device tree for x86 targets
+ */
+
+/dts-v1/;
+
+/include/ "skeleton.dtsi"
+/include/ "serial.dtsi"
+/include/ "keyboard.dtsi"
+/include/ "rtc.dtsi"
+/include/ "tsc_timer.dtsi"
+
+/ {
+ model = "EFI x86 Payload";
+ compatible = "efi,x86-payload";
+
+ aliases {
+ serial0 = &serial;
+ };
+
+ config {
+ silent_console = <0>;
+ };
+
+ chosen {
+ stdout-path = "/serial";
+ };
+
+ pci {
+ compatible = "pci-x86";
+ u-boot,dm-pre-reloc;
+ };
+};
diff --git a/board/efi/Kconfig b/board/efi/Kconfig
index 6f86a48..d37f6ff 100644
--- a/board/efi/Kconfig
+++ b/board/efi/Kconfig
@@ -12,8 +12,17 @@ config TARGET_EFI
takes over once the RAM, video and CPU are fully running.
U-Boot is loaded as an application from EFI.
+config TARGET_EFI_PAYLOAD
+ bool "efi payload"
+ help
+ This target is used for running U-Boot on top of EFI. In
+ this case EFI does the early initialisation, and U-Boot
+ takes over once the RAM, video and CPU are fully running.
+ U-Boot is loaded as a payload from EFI.
+
endchoice
source "board/efi/efi-x86/Kconfig"
+source "board/efi/efi-x86_payload/Kconfig"
endif
diff --git a/board/efi/efi-x86_payload/Kconfig
b/board/efi/efi-x86_payload/Kconfig
new file mode 100644
index 0000000..dcf4de8
--- /dev/null
+++ b/board/efi/efi-x86_payload/Kconfig
@@ -0,0 +1,38 @@
+if TARGET_EFI_PAYLOAD
+
+config SYS_BOARD
+ default "efi-x86_payload"
+
+config SYS_VENDOR
+ default "efi"
+
+config SYS_SOC
+ default "efi"
+
+config SYS_CONFIG_NAME
+ default "efi-x86_payload"
+
+config SYS_TEXT_BASE
+ default 0x00200000
+
+config BOARD_SPECIFIC_OPTIONS # dummy
+ def_bool y
+ imply SYS_NS16550
+ imply SCSI
+ imply SCSI_AHCI
+ imply AHCI_PCI
+ imply MMC
+ imply MMC_PCI
+ imply MMC_SDHCI
+ imply MMC_SDHCI_SDMA
+ imply USB
+ imply USB_EHCI_HCD
+ imply USB_XHCI_HCD
+ imply USB_STORAGE
+ imply USB_KEYBOARD
+ imply E1000
+ imply ETH_DESIGNWARE
+ imply PCH_GBE
+ imply RTL8169
+
+endif
diff --git a/board/efi/efi-x86_payload/MAINTAINERS
b/board/efi/efi-x86_payload/MAINTAINERS
new file mode 100644
index 0000000..abf3a15
--- /dev/null
+++ b/board/efi/efi-x86_payload/MAINTAINERS
@@ -0,0 +1,7 @@
+EFI-X86_PAYLOAD BOARD
+M: Bin Meng <bmeng...@gmail.com>
+S: Maintained
+F: board/efi/efi-x86_payload/
+F: include/configs/efi-x86_payload.h
+F: configs/efi-x86_payload32_defconfig
+F: configs/efi-x86_payload64_defconfig
diff --git a/board/efi/efi-x86_payload/Makefile
b/board/efi/efi-x86_payload/Makefile
new file mode 100644
index 0000000..6982340
--- /dev/null
+++ b/board/efi/efi-x86_payload/Makefile
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright (C) 2018, Bin Meng <bmeng...@gmail.com>
+
+obj-y += start.o
diff --git a/board/efi/efi-x86_payload/start.S
b/board/efi/efi-x86_payload/start.S
new file mode 100644
index 0000000..f7eaa7c
--- /dev/null
+++ b/board/efi/efi-x86_payload/start.S
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2018, Bin Meng <bmeng...@gmail.com>
+ */
+
+.globl early_board_init
+early_board_init:
+ jmp early_board_init_ret
diff --git a/configs/efi-x86_payload32_defconfig
b/configs/efi-x86_payload32_defconfig
new file mode 100644
index 0000000..7f0cab0
--- /dev/null
+++ b/configs/efi-x86_payload32_defconfig
@@ -0,0 +1,35 @@
+CONFIG_X86=y
+CONFIG_VENDOR_EFI=y
+CONFIG_DEFAULT_DEVICE_TREE="efi-x86_payload"
+CONFIG_TARGET_EFI_PAYLOAD=y
+CONFIG_FIT=y
+CONFIG_FIT_SIGNATURE=y
+CONFIG_USE_BOOTARGS=y
+CONFIG_BOOTARGS="root=/dev/sdb3 init=/sbin/init rootwait ro"
+CONFIG_SYS_CONSOLE_INFO_QUIET=y
+CONFIG_DISPLAY_BOARDINFO_LATE=y
+CONFIG_LAST_STAGE_INIT=y
+CONFIG_HUSH_PARSER=y
+# CONFIG_CMD_FLASH is not set
+CONFIG_CMD_IDE=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_PART=y
+CONFIG_CMD_USB=y
+# CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_DHCP=y
+# CONFIG_CMD_NFS is not set
+CONFIG_CMD_PING=y
+CONFIG_CMD_TIME=y
+CONFIG_CMD_EXT2=y
+CONFIG_CMD_EXT4=y
+CONFIG_CMD_EXT4_WRITE=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_MAC_PARTITION=y
+CONFIG_ISO_PARTITION=y
+CONFIG_EFI_PARTITION=y
+CONFIG_REGMAP=y
+CONFIG_SYSCON=y
+# CONFIG_PCI_PNP is not set
+CONFIG_EFI=y
+CONFIG_EFI_STUB=y
diff --git a/configs/efi-x86_payload64_defconfig
b/configs/efi-x86_payload64_defconfig
new file mode 100644
index 0000000..8d7f3f0
--- /dev/null
+++ b/configs/efi-x86_payload64_defconfig
@@ -0,0 +1,36 @@
+CONFIG_X86=y
+CONFIG_VENDOR_EFI=y
+CONFIG_DEFAULT_DEVICE_TREE="efi-x86_payload"
+CONFIG_TARGET_EFI_PAYLOAD=y
+CONFIG_FIT=y
+CONFIG_FIT_SIGNATURE=y
+CONFIG_USE_BOOTARGS=y
+CONFIG_BOOTARGS="root=/dev/sdb3 init=/sbin/init rootwait ro"
+CONFIG_SYS_CONSOLE_INFO_QUIET=y
+CONFIG_DISPLAY_BOARDINFO_LATE=y
+CONFIG_LAST_STAGE_INIT=y
+CONFIG_HUSH_PARSER=y
+# CONFIG_CMD_FLASH is not set
+CONFIG_CMD_IDE=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_PART=y
+CONFIG_CMD_USB=y
+# CONFIG_CMD_SETEXPR is not set
+CONFIG_CMD_DHCP=y
+# CONFIG_CMD_NFS is not set
+CONFIG_CMD_PING=y
+CONFIG_CMD_TIME=y
+CONFIG_CMD_EXT2=y
+CONFIG_CMD_EXT4=y
+CONFIG_CMD_EXT4_WRITE=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_MAC_PARTITION=y
+CONFIG_ISO_PARTITION=y
+CONFIG_EFI_PARTITION=y
+CONFIG_REGMAP=y
+CONFIG_SYSCON=y
+# CONFIG_PCI_PNP is not set
+CONFIG_EFI=y
+CONFIG_EFI_STUB=y
+CONFIG_EFI_STUB_64BIT=y
diff --git a/include/configs/efi-x86_payload.h
b/include/configs/efi-x86_payload.h
new file mode 100644
index 0000000..9c62fd2
--- /dev/null
+++ b/include/configs/efi-x86_payload.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2018, Bin Meng <bmeng...@gmail.com>
+ */
+
+/*
+ * board/config.h - configuration options, board specific
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#include <configs/x86-common.h>
+
+#define CONFIG_SYS_MONITOR_LEN (1 << 20)
+
+#define CONFIG_STD_DEVICES_SETTINGS "stdin=serial,i8042-kbd\0" \
+ "stdout=serial,vidconsole\0" \
+ "stderr=serial,vidconsole\0"
+
+/* ATA/IDE support */
+#define CONFIG_SYS_IDE_MAXBUS 2
+#define CONFIG_SYS_IDE_MAXDEVICE 4
+#define CONFIG_SYS_ATA_BASE_ADDR 0
+#define CONFIG_SYS_ATA_DATA_OFFSET 0
+#define CONFIG_SYS_ATA_REG_OFFSET 0
+#define CONFIG_SYS_ATA_ALT_OFFSET 0
+#define CONFIG_SYS_ATA_IDE0_OFFSET 0x1f0
+#define CONFIG_SYS_ATA_IDE1_OFFSET 0x170
+#define CONFIG_ATAPI
+
+#endif /* __CONFIG_H */
--
2.7.4
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