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-rw-r--r--roms/u-boot/doc/board/intel/bayleybay.rst29
-rw-r--r--roms/u-boot/doc/board/intel/cherryhill.rst30
-rw-r--r--roms/u-boot/doc/board/intel/cougarcanyon2.rst24
-rw-r--r--roms/u-boot/doc/board/intel/crownbay.rst43
-rw-r--r--roms/u-boot/doc/board/intel/edison.rst170
-rw-r--r--roms/u-boot/doc/board/intel/galileo.rst22
-rw-r--r--roms/u-boot/doc/board/intel/index.rst16
-rw-r--r--roms/u-boot/doc/board/intel/minnowmax.rst70
-rw-r--r--roms/u-boot/doc/board/intel/slimbootloader.rst177
9 files changed, 581 insertions, 0 deletions
diff --git a/roms/u-boot/doc/board/intel/bayleybay.rst b/roms/u-boot/doc/board/intel/bayleybay.rst
new file mode 100644
index 000000000..db97f645f
--- /dev/null
+++ b/roms/u-boot/doc/board/intel/bayleybay.rst
@@ -0,0 +1,29 @@
+.. SPDX-License-Identifier: GPL-2.0+
+.. sectionauthor:: Bin Meng <bmeng.cn@gmail.com>
+
+Bayley Bay CRB
+==============
+
+This uses as FSP as with Crown Bay, except it is for the Atom E3800 series.
+Download this and get the .fd file (BAYTRAIL_FSP_GOLD_003_16-SEP-2014.fd at
+the time of writing). Put it in the corresponding board directory and rename
+it to fsp.bin.
+
+Obtain the VGA RAM (Vga.dat at the time of writing) and put it into the same
+board directory as vga.bin.
+
+You still need two more binary blobs. For Bayley Bay, they can be extracted
+from the sample SPI image provided in the FSP (SPI.bin at the time of writing)::
+
+ $ ./tools/ifdtool -x BayleyBay/SPI.bin
+ $ cp flashregion_0_flashdescriptor.bin board/intel/bayleybay/descriptor.bin
+ $ cp flashregion_2_intel_me.bin board/intel/bayleybay/me.bin
+
+Now you can build U-Boot and obtain u-boot.rom::
+
+ $ make bayleybay_defconfig
+ $ make all
+
+Note that the debug version of the FSP is bigger in size. If this version
+is used, CONFIG_FSP_ADDR needs to be configured to 0xfffb0000 instead of
+the default value 0xfffc0000.
diff --git a/roms/u-boot/doc/board/intel/cherryhill.rst b/roms/u-boot/doc/board/intel/cherryhill.rst
new file mode 100644
index 000000000..151f0613f
--- /dev/null
+++ b/roms/u-boot/doc/board/intel/cherryhill.rst
@@ -0,0 +1,30 @@
+.. SPDX-License-Identifier: GPL-2.0+
+.. sectionauthor:: Bin Meng <bmeng.cn@gmail.com>
+
+Cherry Hill CRB
+===============
+
+This uses Intel FSP for Braswell platform. Download it from Intel FSP website,
+put the .fd file to the board directory and rename it to fsp.bin.
+
+Extract descriptor.bin and me.bin from the original BIOS on the board using
+ifdtool and put them to the board directory as well.
+
+Note the FSP package for Braswell does not ship a traditional legacy VGA BIOS
+image for the integrated graphics device. Instead a new binary called Video
+BIOS Table (VBT) is shipped. Put it to the board directory and rename it to
+vbt.bin if you want graphics support in U-Boot.
+
+Now you can build U-Boot and obtain u-boot.rom::
+
+ $ make cherryhill_defconfig
+ $ make all
+
+An important note for programming u-boot.rom to the on-board SPI flash is that
+you need make sure the SPI flash's 'quad enable' bit in its status register
+matches the settings in the descriptor.bin, otherwise the board won't boot.
+
+For the on-board SPI flash MX25U6435F, this can be done by writing 0x40 to the
+status register by DediProg in: Config > Modify Status Register > Write Status
+Register(s) > Register1 Value(Hex). This is is a one-time change. Once set, it
+persists in SPI flash part regardless of the u-boot.rom image burned.
diff --git a/roms/u-boot/doc/board/intel/cougarcanyon2.rst b/roms/u-boot/doc/board/intel/cougarcanyon2.rst
new file mode 100644
index 000000000..5e3e7a182
--- /dev/null
+++ b/roms/u-boot/doc/board/intel/cougarcanyon2.rst
@@ -0,0 +1,24 @@
+.. SPDX-License-Identifier: GPL-2.0+
+.. sectionauthor:: Bin Meng <bmeng.cn@gmail.com>
+
+Cougar Canyon 2 CRB
+===================
+
+This uses Intel FSP for 3rd generation Intel Core and Intel Celeron processors
+with mobile Intel HM76 and QM77 chipsets platform. Download it from Intel FSP
+website and put the .fd file (CHIEFRIVER_FSP_GOLD_001_09-OCTOBER-2013.fd at the
+time of writing) in the board directory and rename it to fsp.bin.
+
+Now build U-Boot and obtain u-boot.rom::
+
+ $ make cougarcanyon2_defconfig
+ $ make all
+
+The board has two 8MB SPI flashes mounted, which are called SPI-0 and SPI-1 in
+the board manual. The SPI-0 flash should have flash descriptor plus ME firmware
+and SPI-1 flash is used to store U-Boot. For convenience, the complete 8MB SPI-0
+flash image is included in the FSP package (named Rom00_8M_MB_PPT.bin). Program
+this image to the SPI-0 flash according to the board manual just once and we are
+all set. For programming U-Boot we just need to program SPI-1 flash. Since the
+default u-boot.rom image for this board is set to 2MB, it should be programmed
+to the last 2MB of the 8MB chip, address range [600000, 7FFFFF].
diff --git a/roms/u-boot/doc/board/intel/crownbay.rst b/roms/u-boot/doc/board/intel/crownbay.rst
new file mode 100644
index 000000000..4fcf9811c
--- /dev/null
+++ b/roms/u-boot/doc/board/intel/crownbay.rst
@@ -0,0 +1,43 @@
+.. SPDX-License-Identifier: GPL-2.0+
+.. sectionauthor:: Bin Meng <bmeng.cn@gmail.com>
+
+Crown Bay CRB
+=============
+
+U-Boot support of Intel `Crown Bay`_ board relies on a binary blob called
+Firmware Support Package (`FSP`_) to perform all the necessary initialization
+steps as documented in the BIOS Writer Guide, including initialization of the
+CPU, memory controller, chipset and certain bus interfaces.
+
+Download the Intel FSP for Atom E6xx series and Platform Controller Hub EG20T,
+install it on your host and locate the FSP binary blob. Note this platform
+also requires a Chipset Micro Code (CMC) state machine binary to be present in
+the SPI flash where u-boot.rom resides, and this CMC binary blob can be found
+in this FSP package too.
+
+ * ./FSP/QUEENSBAY_FSP_GOLD_001_20-DECEMBER-2013.fd
+ * ./Microcode/C0_22211.BIN
+
+Rename the first one to fsp.bin and second one to cmc.bin and put them in the
+board directory.
+
+Note the FSP release version 001 has a bug which could cause random endless
+loop during the FspInit call. This bug was published by Intel although Intel
+did not describe any details. We need manually apply the patch to the FSP
+binary using any hex editor (eg: bvi). Go to the offset 0x1fcd8 of the FSP
+binary, change the following five bytes values from orginally E8 42 FF FF FF
+to B8 00 80 0B 00.
+
+As for the video ROM, you need manually extract it from the Intel provided
+BIOS for Crown Bay `here`_, using the AMI `MMTool`_. Check PCI option
+ROM ID 8086:4108, extract and save it as vga.bin in the board directory.
+
+Now you can build U-Boot and obtain u-boot.rom::
+
+ $ make crownbay_defconfig
+ $ make all
+
+.. _`Crown Bay`: http://www.intel.com/content/www/us/en/embedded/design-tools/evaluation-platforms/atom-e660-eg20t-development-kit.html
+.. _`FSP`: http://www.intel.com/fsp
+.. _`here`: http://www.intel.com/content/www/us/en/secure/intelligent-systems/privileged/e6xx-35-b1-cmc22211.html
+.. _`MMTool`: http://www.ami.com/products/bios-uefi-tools-and-utilities/bios-uefi-utilities/
diff --git a/roms/u-boot/doc/board/intel/edison.rst b/roms/u-boot/doc/board/intel/edison.rst
new file mode 100644
index 000000000..5a65673d1
--- /dev/null
+++ b/roms/u-boot/doc/board/intel/edison.rst
@@ -0,0 +1,170 @@
+.. SPDX-License-Identifier: GPL-2.0+
+.. sectionauthor:: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+
+Edison
+======
+
+Build Instructions for U-Boot as main bootloader
+------------------------------------------------
+
+Simple you can build U-Boot and obtain u-boot.bin::
+
+ $ make edison_defconfig
+ $ make all
+
+Updating U-Boot on Edison
+-------------------------
+
+By default Intel Edison boards are shipped with preinstalled heavily
+patched U-Boot v2014.04. Though it supports DFU which we may be able to
+use.
+
+1. Prepare u-boot.bin as described in chapter above. You still need one
+ more step (if and only if you have original U-Boot), i.e. run the
+ following command::
+
+ $ truncate -s %4096 u-boot.bin
+
+2. Run your board and interrupt booting to U-Boot console. In the console
+ call::
+
+ => run do_force_flash_os
+
+3. Wait for few seconds, it will prepare environment variable and runs
+ DFU. Run DFU command from the host system::
+
+ $ dfu-util -v -d 8087:0a99 --alt u-boot0 -D u-boot.bin
+
+4. Return to U-Boot console and following hint. i.e. push Ctrl+C, and
+ reset the board::
+
+ => reset
+
+Updating U-Boot using xFSTK
+---------------------------
+
+You can also update U-Boot using the xfstk-dldr-solo tool if you can build it.
+One way to do that is to follow the `xFSTK`_ instructions. In short, after you
+install all necessary dependencies and clone repository, it will look like this:
+
+.. code-block:: sh
+
+ cd xFSTK
+ export DISTRIBUTION_NAME=ubuntu20.04
+ export BUILD_VERSION=1.8.5
+ git checkout v$BUILD_VERSION
+ ...
+
+Once you have built it, you can copy xfstk-dldr-solo to /usr/local/bin and
+libboost_program_options.so.1.54.0 to /usr/lib/i386-linux-gnu/ and with luck
+it will work. You might find this `drive`_ helpful.
+
+If it does, then you can download and unpack the Edison recovery image,
+install dfu-util, reset your board and flash U-Boot like this:
+
+.. code-block:: sh
+
+ xfstk-dldr-solo --gpflags 0x80000007 \
+ --osimage u-boot-edison.img \
+ --fwdnx recover/edison_dnx_fwr.bin \
+ --fwimage recover/edison_ifwi-dbg-00.bin \
+ --osdnx recover/edison_dnx_osr.bin
+
+This should show the following
+
+.. code-block:: none
+
+ XFSTK Downloader Solo 1.8.5
+ Copyright (c) 2015 Intel Corporation
+ Build date and time: Aug 15 2020 15:07:13
+
+ .Intel SoC Device Detection Found
+ Parsing Commandline....
+ Registering Status Callback....
+ .Initiating Download Process....
+ .......(lots of dots)........XFSTK-STATUS--Reconnecting to device - Attempt #1
+ .......(even more dots)......................
+
+You have about 10 seconds after resetting the board to type the above command.
+If you want to check if the board is ready, type:
+
+.. code-block:: none
+
+ lsusb | egrep "8087|8086"
+ Bus 001 Device 004: ID 8086:e005 Intel Corp.
+
+If you see a device with the same ID as above, the board is waiting for your
+command.
+
+After about 5 seconds you should see some console output from the board:
+
+.. code-block:: none
+
+ ******************************
+ PSH KERNEL VERSION: b0182b2b
+ WR: 20104000
+ ******************************
+
+ SCU IPC: 0x800000d0 0xfffce92c
+
+ PSH miaHOB version: TNG.B0.VVBD.0000000c
+
+ microkernel built 11:24:08 Feb 5 2015
+
+ ******* PSH loader *******
+ PCM page cache size = 192 KB
+ Cache Constraint = 0 Pages
+ Arming IPC driver ..
+ Adding page store pool ..
+ PagestoreAddr(IMR Start Address) = 0x04899000
+ pageStoreSize(IMR Size) = 0x00080000
+
+ *** Ready to receive application ***
+
+After another 10 seconds the xFSTK tool completes and the board resets. About
+10 seconds after that should see the above message again and then within a few
+seconds U-Boot should start on your board:
+
+.. code-block:: none
+
+ U-Boot 2020.10-rc3 (Sep 03 2020 - 18:44:28 -0600)
+
+ CPU: Genuine Intel(R) CPU 4000 @ 500MHz
+ DRAM: 980.6 MiB
+ WDT: Started with servicing (60s timeout)
+ MMC: mmc@ff3fc000: 0, mmc@ff3fa000: 1
+ Loading Environment from MMC... OK
+ In: serial
+ Out: serial
+ Err: serial
+ Saving Environment to MMC... Writing to redundant MMC(0)... OK
+ Saving Environment to MMC... Writing to MMC(0)... OK
+ Net: No ethernet found.
+ Hit any key to stop autoboot: 0
+ Target:blank
+ Partitioning using GPT
+ Writing GPT: success!
+ Saving Environment to MMC... Writing to redundant MMC(0)... OK
+ Flashing already done...
+ 5442816 bytes read in 238 ms (21.8 MiB/s)
+ Valid Boot Flag
+ Setup Size = 0x00003c00
+ Magic signature found
+ Using boot protocol version 2.0c
+ Linux kernel version 3.10.17-poky-edison+ (ferry@kalamata) #1 SMP PREEMPT Mon Jan 11 14:54:18 CET 2016
+ Building boot_params at 0x00090000
+ Loading bzImage at address 100000 (5427456 bytes)
+ Magic signature found
+ Kernel command line: "rootwait ..."
+ Magic signature found
+
+ Starting kernel ...
+
+ ...
+
+ Poky (Yocto Project Reference Distro) 1.7.2 edison ttyMFD2
+
+ edison login:
+
+.. _xFSTK: https://github.com/edison-fw/xFSTK
+.. _drive: https://drive.google.com/drive/u/0/folders/1URPHrOk9-UBsh8hjv-7WwC0W6Fy61uAJ
diff --git a/roms/u-boot/doc/board/intel/galileo.rst b/roms/u-boot/doc/board/intel/galileo.rst
new file mode 100644
index 000000000..f51a06bb9
--- /dev/null
+++ b/roms/u-boot/doc/board/intel/galileo.rst
@@ -0,0 +1,22 @@
+.. SPDX-License-Identifier: GPL-2.0+
+.. sectionauthor:: Bin Meng <bmeng.cn@gmail.com>
+
+Galileo
+=======
+
+Only one binary blob is needed for Remote Management Unit (RMU) within Intel
+Quark SoC. Not like FSP, U-Boot does not call into the binary. The binary is
+needed by the Quark SoC itself.
+
+You can get the binary blob from Quark Board Support Package from Intel website:
+
+ * ./QuarkSocPkg/QuarkNorthCluster/Binary/QuarkMicrocode/RMU.bin
+
+Rename the file and put it to the board directory by::
+
+ $ cp RMU.bin board/intel/galileo/rmu.bin
+
+Now you can build U-Boot and obtain u-boot.rom::
+
+ $ make galileo_defconfig
+ $ make all
diff --git a/roms/u-boot/doc/board/intel/index.rst b/roms/u-boot/doc/board/intel/index.rst
new file mode 100644
index 000000000..f545dee87
--- /dev/null
+++ b/roms/u-boot/doc/board/intel/index.rst
@@ -0,0 +1,16 @@
+.. SPDX-License-Identifier: GPL-2.0+
+
+Intel
+=====
+
+.. toctree::
+ :maxdepth: 2
+
+ bayleybay
+ cherryhill
+ cougarcanyon2
+ crownbay
+ edison
+ galileo
+ minnowmax
+ slimbootloader
diff --git a/roms/u-boot/doc/board/intel/minnowmax.rst b/roms/u-boot/doc/board/intel/minnowmax.rst
new file mode 100644
index 000000000..028121735
--- /dev/null
+++ b/roms/u-boot/doc/board/intel/minnowmax.rst
@@ -0,0 +1,70 @@
+.. SPDX-License-Identifier: GPL-2.0+
+.. sectionauthor:: Simon Glass <sjg@chromium.org>
+
+Minnowboard MAX
+===============
+
+This uses as FSP as with Crown Bay, except it is for the Atom E3800 series.
+Download this and get the .fd file (BAYTRAIL_FSP_GOLD_003_16-SEP-2014.fd at
+the time of writing). Put it in the corresponding board directory and rename
+it to fsp.bin.
+
+Obtain the VGA RAM (Vga.dat at the time of writing) and put it into the same
+board directory as vga.bin.
+
+You still need two more binary blobs. For Minnowboard MAX, we can reuse the
+same ME firmware above, but for flash descriptor, we need get that somewhere
+else, as the one above does not seem to work, probably because it is not
+designed for the Minnowboard MAX. Now download the original firmware image
+for this board from:
+
+ * http://firmware.intel.com/sites/default/files/2014-WW42.4-MinnowBoardMax.73-64-bit.bin_Release.zip
+
+Unzip it::
+
+ $ unzip 2014-WW42.4-MinnowBoardMax.73-64-bit.bin_Release.zip
+
+Use ifdtool in the U-Boot tools directory to extract the images from that
+file, for example::
+
+ $ ./tools/ifdtool -x MNW2MAX1.X64.0073.R02.1409160934.bin
+
+This will provide the descriptor file - copy this into the correct place::
+
+ $ cp flashregion_0_flashdescriptor.bin board/intel/minnowmax/descriptor.bin
+
+Now you can build U-Boot and obtain u-boot.rom::
+
+ $ make minnowmax_defconfig
+ $ make all
+
+Checksums are as follows (but note that newer versions will invalidate this)::
+
+ $ md5sum -b board/intel/minnowmax/*.bin
+ ffda9a3b94df5b74323afb328d51e6b4 board/intel/minnowmax/descriptor.bin
+ 69f65b9a580246291d20d08cbef9d7c5 board/intel/minnowmax/fsp.bin
+ 894a97d371544ec21de9c3e8e1716c4b board/intel/minnowmax/me.bin
+ a2588537da387da592a27219d56e9962 board/intel/minnowmax/vga.bin
+
+The ROM image is broken up into these parts:
+
+====== ================== ============================
+Offset Description Controlling config
+====== ================== ============================
+000000 descriptor.bin Hard-coded to 0 in ifdtool
+001000 me.bin Set by the descriptor
+500000 <spare>
+6ef000 Environment CONFIG_ENV_OFFSET
+6f0000 MRC cache CONFIG_ENABLE_MRC_CACHE
+700000 u-boot-dtb.bin CONFIG_SYS_TEXT_BASE
+7b0000 vga.bin CONFIG_VGA_BIOS_ADDR
+7c0000 fsp.bin CONFIG_FSP_ADDR
+7f8000 <spare> (depends on size of fsp.bin)
+7ff800 U-Boot 16-bit boot CONFIG_SYS_X86_START16
+====== ================== ============================
+
+Overall ROM image size is controlled by CONFIG_ROM_SIZE.
+
+Note that the debug version of the FSP is bigger in size. If this version
+is used, CONFIG_FSP_ADDR needs to be configured to 0xfffb0000 instead of
+the default value 0xfffc0000.
diff --git a/roms/u-boot/doc/board/intel/slimbootloader.rst b/roms/u-boot/doc/board/intel/slimbootloader.rst
new file mode 100644
index 000000000..18f1cc056
--- /dev/null
+++ b/roms/u-boot/doc/board/intel/slimbootloader.rst
@@ -0,0 +1,177 @@
+.. SPDX-License-Identifier: GPL-2.0+
+.. sectionauthor:: Aiden Park <aiden.park@intel.com>
+
+Slim Bootloader
+===============
+
+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
+
+The Slim Bootloader stages (Stage1A/B, Stage2) focus on chipset, hardware and
+platform specific initialization, and it provides useful information to a
+payload in a HOB (Hand-Off Block) which has serial port, memory map, performance
+data info and so on. This is Slim Bootloader architectural design to make a
+payload light-weight, platform independent and more generic across different
+boot solutions or payloads, and to minimize hardware re-initialization in a
+payload.
+
+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
+
+Test Linux booting on QEMU target
+---------------------------------
+
+Let's use LeafHill (APL) Yocto image for testing.
+Download it from http://downloads.yoctoproject.org/releases/yocto/yocto-2.0/machines/leafhill/.
+
+1. Prepare Yocto hard disk image::
+
+ $ wget http://downloads.yoctoproject.org/releases/yocto/yocto-2.0/machines/leafhill/leafhill-4.0-jethro-2.0.tar.bz2
+ $ tar -xvf leafhill-4.0-jethro-2.0.tar.bz2
+ $ ls -l leafhill-4.0-jethro-2.0/binary/core-image-sato-intel-corei7-64.hddimg
+
+2. Launch Slim Bootloader on QEMU with disk image::
+
+ $ qemu-system-x86_64 -machine q35 -nographic -serial mon:stdio -pflash Outputs/qemu/SlimBootloader.bin -drive id=mydrive,if=none,file=/path/to/core-image-sato-intel-corei7-64.hddimg,format=raw -device ide-hd,drive=mydrive
+
+3. Update boot environment values on shell::
+
+ => setenv bootfile vmlinuz
+ => setenv bootdev scsi
+ => boot
+
+Build Instruction for Slim Bootloader for LeafHill (APL) target
+---------------------------------------------------------------
+
+Prepare U-Boot and Slim Bootloader as described at the beginning of this page.
+Also, the PayloadId needs to be set for APL board.
+
+1. 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'
+
+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/ApollolakeBoardPkg/BoardConfig.py
+ + self.PAYLOAD_LOAD_HIGH = 0
+ + self.PAYLOAD_EXE_BASE = 0x00100000
+
+3. 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"
+
+4. 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>
+
+5. 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 distclean
+ $ 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://source.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