From 32151d40172870e7772b1a393935001979a01aea Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Tue, 12 Jun 2018 08:36:18 -0700 Subject: [PATCH] x86: Add generic EFI payload support 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 Reviewed-by: Simon Glass --- 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 +++++++++++++++++++++++++ doc/README.u-boot_on_efi | 19 +++++++------- include/configs/efi-x86_payload.h | 32 ++++++++++++++++++++++ 11 files changed, 216 insertions(+), 10 deletions(-) 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 73797746f8..9872c04739 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 0000000000..137bde5b27 --- /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 + * + * 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 6f86a48fa7..d37f6ff288 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 0000000000..dcf4de8361 --- /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 0000000000..abf3a1574b --- /dev/null +++ b/board/efi/efi-x86_payload/MAINTAINERS @@ -0,0 +1,7 @@ +EFI-X86_PAYLOAD BOARD +M: Bin Meng +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 0000000000..6982340f17 --- /dev/null +++ b/board/efi/efi-x86_payload/Makefile @@ -0,0 +1,5 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Copyright (C) 2018, Bin Meng + +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 0000000000..f7eaa7cb12 --- /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 + */ + +.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 0000000000..7f0cab0ab1 --- /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 0000000000..8d7f3f056e --- /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/doc/README.u-boot_on_efi b/doc/README.u-boot_on_efi index 0349c5663a..8fba112e11 100644 --- a/doc/README.u-boot_on_efi +++ b/doc/README.u-boot_on_efi @@ -71,12 +71,13 @@ Just build U-Boot as normal, e.g. make efi-x86_defconfig make -To build U-Boot as an EFI payload (32-bit or 64-bit EFI can be used), adjust an -existing config (like qemu-x86_defconfig) to enable CONFIG_EFI, CONFIG_EFI_STUB -and either CONFIG_EFI_STUB_32BIT or CONFIG_EFI_STUB_64BIT. All of these are -boolean Kconfig options. Then build U-Boot as normal, e.g. +To build U-Boot as an EFI payload (32-bit or 64-bit EFI can be used), enable +CONFIG_EFI, CONFIG_EFI_STUB, and select either CONFIG_EFI_STUB_32BIT or +CONFIG_EFI_STUB_64BIT. The efi-x86_payload configs (efi-x86_payload32_defconfig +and efi-x86_payload32_defconfig) are set up for this. Then build U-Boot as +normal, e.g. - make qemu-x86_defconfig + make efi-x86_payload32_defconfig (or efi-x86_payload64_defconfig) make You will end up with one of these files depending on what you build for: @@ -211,11 +212,6 @@ Future work ----------- This work could be extended in a number of ways: -- Add a generic x86 EFI payload configuration. At present you need to modify -an existing one, but mostly the low-level x86 code is disabled when booting -on EFI anyway, so a generic 'EFI' board could be created with a suitable set -of drivers enabled. - - Add ARM support - Add 64-bit application support @@ -241,6 +237,9 @@ arch/x86/cpu/efi board/efi/efi-x86/efi.c x86 board code for running as an EFI application +board/efi/efi-x86_payload + generic x86 EFI payload board support code + common/cmd_efi.c the 'efi' command diff --git a/include/configs/efi-x86_payload.h b/include/configs/efi-x86_payload.h new file mode 100644 index 0000000000..9c62fd24b8 --- /dev/null +++ b/include/configs/efi-x86_payload.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2018, Bin Meng + */ + +/* + * board/config.h - configuration options, board specific + */ + +#ifndef __CONFIG_H +#define __CONFIG_H + +#include + +#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 */ -- 2.25.1