[U-Boot] [PATCH v6 7/8] board: intel: Add new slimbootloader board
Park, Aiden
aiden.park at intel.com
Fri Jul 26 07:00:54 UTC 2019
Add slimbootloader board to run U-boot as a Slim Bootloader payload
- Add new board/intel/slimbootloader directory with minimum codes
- Add slimbootloader configuration files
- Add doc/board/intel/slimbootloader.rst
Signed-off-by: Aiden Park <aiden.park at intel.com>
Reviewed-by: Bin Meng <bmeng.cn at gmail.com>
---
Changes in v6:
* Select CONFIG_SYS_SLIMBOOTLOADER in board Kconfig
* Move USB_STORAGE and USB_KEYBOARD to board Kconfig
* Convert README to reST doc/board/intel/slimbootloader.rst
Changes in v5:
* Remove X86_LOAD_FROM_32_BIT from slimbootloader_defconfig
Changes in v3:
* Remove VENDOR_SLIMBOOTLOADER
* Use VENDOR_INTEL
* Move slimbootloader under board/intel/
* Enable generic CONFIGs in slimbootloader_defconfig
* Add more description in board/intel/slimbootloader/README
board/intel/Kconfig | 14 ++
board/intel/slimbootloader/Kconfig | 28 ++++
board/intel/slimbootloader/Makefile | 5 +
board/intel/slimbootloader/slimbootloader.c | 21 +++
board/intel/slimbootloader/start.S | 9 ++
configs/slimbootloader_defconfig | 22 +++
doc/board/intel/slimbootloader.rst | 166 ++++++++++++++++++++
include/configs/slimbootloader.h | 62 ++++++++
8 files changed, 327 insertions(+)
create mode 100644 board/intel/slimbootloader/Kconfig
create mode 100644 board/intel/slimbootloader/Makefile
create mode 100644 board/intel/slimbootloader/slimbootloader.c
create mode 100644 board/intel/slimbootloader/start.S
create mode 100644 configs/slimbootloader_defconfig
create mode 100644 doc/board/intel/slimbootloader.rst
create mode 100644 include/configs/slimbootloader.h
diff --git a/board/intel/Kconfig b/board/intel/Kconfig
index 5131836cb0..10859b5f08 100644
--- a/board/intel/Kconfig
+++ b/board/intel/Kconfig
@@ -73,6 +73,19 @@ config TARGET_MINNOWMAX
Note that PCIE_ECAM_BASE is set up by the FSP so the value used
by U-Boot matches that value.
+config TARGET_SLIMBOOTLOADER
+ bool "slimbootloader"
+ help
+ This target is used for running U-Boot on top of Slim Bootloader
+ boot firmware as a payload. Slim Bootloader does memory initialization
+ and silicon initialization, and it passes necessary information in
+ HOB(Hand Off Block) to a payload. The payload consumes HOB data
+ which is generated by Slim Bootloader for its driver initialization.
+ Slim Bootloader consumes FSP and its HOB, but FSP HOB is cleared
+ Before launching a payload. Instead, Slim Bootloader generates its
+ HOB data such as memory info, serial port info and so on.
+ Refer to doc/board/intel/slimbootloader.rst for the details.
+
endchoice
source "board/intel/bayleybay/Kconfig"
@@ -82,5 +95,6 @@ source "board/intel/crownbay/Kconfig"
source "board/intel/edison/Kconfig"
source "board/intel/galileo/Kconfig"
source "board/intel/minnowmax/Kconfig"
+source "board/intel/slimbootloader/Kconfig"
endif
diff --git a/board/intel/slimbootloader/Kconfig b/board/intel/slimbootloader/Kconfig
new file mode 100644
index 0000000000..8c7e22cc33
--- /dev/null
+++ b/board/intel/slimbootloader/Kconfig
@@ -0,0 +1,28 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright (C) 2019 Intel Corporation <www.intel.com>
+
+if TARGET_SLIMBOOTLOADER
+
+config SYS_BOARD
+ default "slimbootloader"
+
+config SYS_VENDOR
+ default "intel"
+
+config SYS_SOC
+ default "slimbootloader"
+
+config SYS_CONFIG_NAME
+ default "slimbootloader"
+
+config SYS_TEXT_BASE
+ default 0x00100000
+
+config BOARD_SPECIFIC_OPTIONS
+ def_bool y
+ select SYS_SLIMBOOTLOADER
+ select USB_STORAGE
+ select USB_KEYBOARD
+
+endif
diff --git a/board/intel/slimbootloader/Makefile b/board/intel/slimbootloader/Makefile
new file mode 100644
index 0000000000..fd8fa98a8d
--- /dev/null
+++ b/board/intel/slimbootloader/Makefile
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright (C) 2019 Intel Corporation <www.intel.com>
+
+obj-y += start.o slimbootloader.o
diff --git a/board/intel/slimbootloader/slimbootloader.c b/board/intel/slimbootloader/slimbootloader.c
new file mode 100644
index 0000000000..f50eeb823f
--- /dev/null
+++ b/board/intel/slimbootloader/slimbootloader.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019 Intel Corporation <www.intel.com>
+ */
+
+#include <common.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.
+ *
+ * Slim Bootloader has already done PCI bus enumeration before loading
+ * U-Boot, so U-Boot needs to preserve PCI configuration.
+ * Therefore, '# CONFIG_PCI_PNP is not set' is included in defconfig.
+ */
+ pci_init();
+
+ return 0;
+}
diff --git a/board/intel/slimbootloader/start.S b/board/intel/slimbootloader/start.S
new file mode 100644
index 0000000000..5c3f3df09e
--- /dev/null
+++ b/board/intel/slimbootloader/start.S
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2019 Intel Corporation <www.intel.com>
+ */
+
+/* board early initialization */
+.globl early_board_init
+early_board_init:
+ jmp early_board_init_ret
diff --git a/configs/slimbootloader_defconfig b/configs/slimbootloader_defconfig
new file mode 100644
index 0000000000..b16ed71469
--- /dev/null
+++ b/configs/slimbootloader_defconfig
@@ -0,0 +1,22 @@
+CONFIG_X86=y
+CONFIG_VENDOR_INTEL=y
+CONFIG_TARGET_SLIMBOOTLOADER=y
+CONFIG_DEFAULT_DEVICE_TREE="slimbootloader"
+CONFIG_REGMAP=y
+CONFIG_SYSCON=y
+CONFIG_SYS_CONSOLE_INFO_QUIET=y
+CONFIG_BOARD_EARLY_INIT_R=y
+CONFIG_LAST_STAGE_INIT=y
+CONFIG_HUSH_PARSER=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_EXT2=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_USB=y
+CONFIG_DOS_PARTITION=y
+CONFIG_EFI_PARTITION=y
+CONFIG_OF_CONTROL=y
+CONFIG_BOOTSTAGE=y
+CONFIG_BOOTSTAGE_REPORT=y
+CONFIG_BOOTDELAY=10
+CONFIG_CONSOLE_SCROLL_LINES=5
+# CONFIG_PCI_PNP is not set
diff --git a/doc/board/intel/slimbootloader.rst b/doc/board/intel/slimbootloader.rst
new file mode 100644
index 0000000000..a9048473c3
--- /dev/null
+++ b/doc/board/intel/slimbootloader.rst
@@ -0,0 +1,166 @@
+.. SPDX-License-Identifier: GPL-2.0+
+.. sectionauthor:: Aiden Park <aiden.park at intel.com>
+
+U-Boot as a Slim Bootloader payload
+===================================
+
+Introduction
+------------
+
+This target is to enable U-Boot_ as a payload of `Slim Bootloader`_ (a.k.a SBL)
+boot firmware which currently supports QEMU, Apollolake, Whiskeylake,
+Coffeelake-R platforms.
+
+The `Slim Bootloader`_ is designed with multi-stages(Stage1A/B, Stage2, Payload)
+architecture to cover from reset vector to OS booting and it consumes
+`Intel FSP`_ for silicon initialization.
+
+* Stage1A: Reset vector, CAR init with FSP-T
+* Stage1B: Memory init with FSP-M, CAR teardown, Continue execution in memory
+* Stage2 : Rest of Silicon init with FSP-S, Create HOB, Hand-off to Payload
+* Payload: Payload init with HOB, Load OS from media, Booting OS
+
+Build Instruction for U-Boot as a Slim Bootloader payload
+---------------------------------------------------------
+
+Build U-Boot and obtain u-boot-dtb.bin::
+
+ $ make distclean
+ $ make slimbootloader_defconfig
+ $ make all
+
+Prepare Slim Bootloader
+-----------------------
+
+1. Setup Build Environment for Slim Bootloader.
+
+ Refer to `Getting Started`_ page in `Slim Bootloader`_ document site.
+
+2. Get source code. Let's simply clone the repo::
+
+ $ git clone https://github.com/slimbootloader/slimbootloader.git
+
+3. Copy u-boot-dtb.bin to Slim Bootloader.
+ Slim Bootloader looks for a payload from the specific location.
+ Copy the build u-boot-dtb.bin to the expected location::
+
+ $ mkdir -p <Slim Bootloader Dir>/PayloadPkg/PayloadBins/
+ $ cp <U-Boot Dir>/u-boot-dtb.bin <Slim Bootloader Dir>/PayloadPkg/PayloadBins/u-boot-dtb.bin
+
+Build Instruction for Slim Bootloader for QEMU target
+-----------------------------------------------------
+
+Slim Bootloader supports multiple payloads, and a board of Slim Bootloader
+detects its target payload by PayloadId in board configuration.
+The PayloadId can be any 4 Bytes value.
+
+1. Update PayloadId. Let's use 'U-BT' as an example::
+
+ $ vi Platform/QemuBoardPkg/CfgData/CfgDataExt_Brd1.dlt
+ -GEN_CFG_DATA.PayloadId | 'AUTO'
+ +GEN_CFG_DATA.PayloadId | 'U-BT'
+
+2. Update payload text base. PAYLOAD_EXE_BASE must be the same as U-Boot
+ CONFIG_SYS_TEXT_BASE in board/intel/slimbootloader/Kconfig.
+ PAYLOAD_LOAD_HIGH must be 0::
+
+ $ vi Platform/QemuBoardPkg/BoardConfig.py
+ + self.PAYLOAD_LOAD_HIGH = 0
+ + self.PAYLOAD_EXE_BASE = 0x00100000
+
+3. Build QEMU target. Make sure u-boot-dtb.bin and U-BT PayloadId
+ in build command. The output is Outputs/qemu/SlimBootloader.bin::
+
+ $ python BuildLoader.py build qemu -p "OsLoader.efi:LLDR:Lz4;u-boot-dtb.bin:U-BT:Lzma"
+
+4. Launch Slim Bootloader on QEMU.
+ You should reach at U-Boot serial console::
+
+ $ qemu-system-x86_64 -machine q35 -nographic -serial mon:stdio -pflash Outputs/qemu/SlimBootloader.bin
+
+Build Instruction for Slim Bootloader for LeafHill(APL) target
+--------------------------------------------------------------
+
+LeafHill is using PCI UART2 device as a serial port.
+For MEM32 serial port, CONFIG_SYS_NS16550_MEM32 needs to be enabled in U-Boot.
+
+1. Enable CONFIG_SYS_NS16550_MEM32 in U-Boot::
+
+ $ vi include/configs/slimbootloader.h
+ +#define CONFIG_SYS_NS16550_MEM32
+ #ifdef CONFIG_SYS_NS16550_MEM3
+
+2. Build U-Boot::
+
+ $ make disclean
+ $ make slimbootloader_defconfig
+ $ make all
+
+3. Copy u-boot-dtb.bin to Slim Bootloader.
+ Slim Bootloader looks for a payload from the specific location.
+ Copy the build u-boot-dtb.bin to the expected location::
+
+ $ mkdir -p <Slim Bootloader Dir>/PayloadPkg/PayloadBins/
+ $ cp <U-Boot Dir>/u-boot-dtb.bin <Slim Bootloader Dir>/PayloadPkg/PayloadBins/u-boot-dtb.bin
+
+4. Update PayloadId. Let's use 'U-BT' as an example::
+
+ $ vi Platform/ApollolakeBoardPkg/CfgData/CfgData_Int_LeafHill.dlt
+ -GEN_CFG_DATA.PayloadId | 'AUTO
+ +GEN_CFG_DATA.PayloadId | 'U-BT'
+
+5. Update payload text base.
+
+* PAYLOAD_EXE_BASE must be the same as U-Boot CONFIG_SYS_TEXT_BASE
+ in board/intel/slimbootloader/Kconfig.
+* PAYLOAD_LOAD_HIGH must be 0::
+
+ $ vi Platform/ApollolakeBoardPkg/BoardConfig.py
+ + self.PAYLOAD_LOAD_HIGH = 0
+ + self.PAYLOAD_EXE_BASE = 0x00100000
+
+6. Build APL target. Make sure u-boot-dtb.bin and U-BT PayloadId
+ in build command. The output is Outputs/apl/Stitch_Components.zip::
+
+ $ python BuildLoader.py build apl -p "OsLoader.efi:LLDR:Lz4;u-boot-dtb.bin:U-BT:Lzma"
+
+7. Stitch IFWI.
+
+ Refer to Apollolake_ page in Slim Bootloader document site::
+
+ $ python Platform/ApollolakeBoardPkg/Script/StitchLoader.py -i <Existing IFWI> -s Outputs/apl/Stitch_Components.zip -o <Output IFWI>
+
+8. Flash IFWI.
+
+ Use DediProg to flash IFWI. You should reach at U-Boot serial console.
+
+
+Build Instruction to use ELF U-Boot
+-----------------------------------
+
+1. Enable CONFIG_OF_EMBED::
+
+ $ vi configs/slimbootloader_defconfig
+ +CONFIG_OF_EMBED=y
+
+2. Build U-Boot::
+
+ $ make disclean
+ $ make slimbootloader_defconfig
+ $ make all
+ $ strip u-boot (removing symbol for reduced size)
+
+3. Do same steps as above
+
+* Copy u-boot(ELF) to PayloadBins directory
+* Update PayloadId 'U-BT' as above.
+* No need to set PAYLOAD_LOAD_HIGH and PAYLOAD_EXE_BASE.
+* Build Slim Bootloader. Use u-boot instead of u-boot-dtb.bin::
+
+ $ python BuildLoader.py build <qemu or apl> -p "OsLoader.efi:LLDR:Lz4;u-boot:U-BT:Lzma"
+
+.. _U-Boot: https://gitlab.denx.de/
+.. _`Slim Bootloader`: https://github.com/slimbootloader/
+.. _`Intel FSP`: https://github.com/IntelFsp/
+.. _`Getting Started`: https://slimbootloader.github.io/getting-started/
+.. _Apollolake: https://slimbootloader.github.io/supported-hardware/apollo-lake-crb.html#stitching
diff --git a/include/configs/slimbootloader.h b/include/configs/slimbootloader.h
new file mode 100644
index 0000000000..e0011ed446
--- /dev/null
+++ b/include/configs/slimbootloader.h
@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2019 Intel Corporation <www.intel.com>
+ */
+
+#ifndef __SLIMBOOTLOADER_CONFIG_H__
+#define __SLIMBOOTLOADER_CONFIG_H__
+
+#include <configs/x86-common.h>
+
+/*
+ * By default, CONFIG_SYS_NS16550_PORT_MAPPED is enabled for port io serial.
+ * To use mmio base serial, enable CONFIG_SYS_NS16550_MEM32 and disable
+ * CONFIG_SYS_NS16550_PORT_MAPPED until ns16550 driver supports serial port
+ * configuration in run-time.
+ *
+ * #define CONFIG_SYS_NS16550_MEM32
+ * #undef CONFIG_SYS_NS16550_PORT_MAPPED
+ */
+#ifdef CONFIG_SYS_NS16550_MEM32
+#undef CONFIG_SYS_NS16550_PORT_MAPPED
+#endif
+
+#define CONFIG_STD_DEVICES_SETTINGS \
+ "stdin=serial,i8042-kbd,usbkbd\0" \
+ "stdout=serial\0" \
+ "stderr=serial\0"
+
+/*
+ * Override CONFIG_EXTRA_ENV_SETTINGS in x86-common.h
+ */
+#undef CONFIG_EXTRA_ENV_SETTINGS
+#define CONFIG_EXTRA_ENV_SETTINGS \
+ CONFIG_STD_DEVICES_SETTINGS \
+ "netdev=eth0\0" \
+ "consoledev=ttyS0\0" \
+ "ramdiskaddr=0x4000000\0" \
+ "ramdiskfile=initrd\0" \
+ "bootdev=usb\0" \
+ "bootdevnum=0\0" \
+ "bootdevpart=0\0" \
+ "bootfsload=fatload\0" \
+ "bootusb=setenv bootdev usb; boot\0" \
+ "bootscsi=setenv bootdev scsi; boot\0" \
+ "bootmmc=setenv bootdev mmc; boot\0" \
+ "bootargs=console=ttyS0,115200 console=tty0\0"
+
+/*
+ * Override CONFIG_BOOTCOMMAND in x86-common.h
+ */
+#undef CONFIG_BOOTCOMMAND
+#define CONFIG_BOOTCOMMAND \
+ "if test ${bootdev} = \"usb\"; then ${bootdev} start; fi; " \
+ "if test ${bootdev} = \"scsi\"; then ${bootdev} scan; fi; " \
+ "${bootdev} info; " \
+ "${bootfsload} ${bootdev} ${bootdevnum}:${bootdevpart} " \
+ "${loadaddr} ${bootfile}; " \
+ "${bootfsload} ${bootdev} ${bootdevnum}:${bootdevpart} " \
+ "${ramdiskaddr} ${ramdiskfile}; " \
+ "zboot ${loadaddr} 0 ${ramdiskaddr} ${filesize}"
+
+#endif /* __SLIMBOOTLOADER_CONFIG_H__ */
--
2.20.1
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