Hi Nishanth, On mar., août 22, 2023 at 13:41, Nishanth Menon <n...@ti.com> wrote:
> Add base documentation for BeaglePlay > > Signed-off-by: Nishanth Menon <n...@ti.com> This is great! Thanks a lot for the documentation update, especially the "Flash to eMMC" section. Reviewed-by: Mattijs Korpershoek <mkorpersh...@baylibre.com> > --- > Cc: Heinrich Schuchardt <heinrich.schucha...@canonical.com> > > Changes Since V3: > * Updated documentation to give a more clear overview of MMC partitions > and flashing information. > * Added OpenOCD debug documentation > * Added LED status information and indication of various boot stages > > V3: https://lore.kernel.org/all/20230815164440.2713726-5...@ti.com/ > V2: https://lore.kernel.org/u-boot/20230727234446.3651836-5...@ti.com/ > V1: https://lore.kernel.org/all/20230725185253.2123433-7...@ti.com/ > > doc/board/ti/am62x_beagleplay.rst | 256 ++++++++++ > doc/board/ti/img/beagleplay_emmc.svg | 697 +++++++++++++++++++++++++++ > doc/board/ti/k3.rst | 1 + > 3 files changed, 954 insertions(+) > create mode 100644 doc/board/ti/am62x_beagleplay.rst > create mode 100644 doc/board/ti/img/beagleplay_emmc.svg > > diff --git a/doc/board/ti/am62x_beagleplay.rst > b/doc/board/ti/am62x_beagleplay.rst > new file mode 100644 > index 000000000000..5adb7b4c9ace > --- /dev/null > +++ b/doc/board/ti/am62x_beagleplay.rst > @@ -0,0 +1,256 @@ > +.. SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause > +.. sectionauthor:: Nishanth Menon <n...@ti.com> > + > +AM62x Beagleboard.org Beagleplay > +================================ > + > +Introduction: > +------------- > + > +BeagleBoard.org BeaglePlay is an easy to use, affordable open source > +hardware single board computer based on the Texas Instruments AM625 > +SoC that allows you to create connected devices that work even at long > +distances using IEEE 802.15.4g LR-WPAN and IEEE 802.3cg 10Base-T1L. > +Expansion is provided over open standards based mikroBUS, Grove and > +QWIIC headers among other interfaces. > + > +Further information can be found at: > + > +* Product Page: https://beagleplay.org/ > +* Hardware documentation: https://git.beagleboard.org/beagleplay/beagleplay > + > +Boot Flow: > +---------- > +Below is the pictorial representation of boot flow: > + > +.. image:: img/boot_diagram_k3_current.svg > + :alt: Boot flow diagram > + > +- On this platform, 'TI Foundational Security' (TIFS) functions as the > + security enclave master while 'Device Manager' (DM), also known as the > + 'TISCI server' in "TI terminology", offers all the essential services. > + The A53/M4F (Aux core) sends requests to TIFS/DM to accomplish these > + services, as illustrated in the diagram above. > + > +Sources: > +-------- > +.. include:: k3.rst > + :start-after: .. k3_rst_include_start_boot_sources > + :end-before: .. k3_rst_include_end_boot_sources > + > +Build procedure: > +---------------- > +0. Setup the environment variables: > + > +.. include:: k3.rst > + :start-after: .. k3_rst_include_start_common_env_vars_desc > + :end-before: .. k3_rst_include_end_common_env_vars_desc > + > +.. include:: k3.rst > + :start-after: .. k3_rst_include_start_board_env_vars_desc > + :end-before: .. k3_rst_include_end_board_env_vars_desc > + > +Set the variables corresponding to this platform: > + > +.. include:: k3.rst > + :start-after: .. k3_rst_include_start_common_env_vars_defn > + :end-before: .. k3_rst_include_end_common_env_vars_defn > +.. code-block:: bash > + > + $ export UBOOT_CFG_CORTEXR="am62x_evm_r5_defconfig beagleplay_r5.config" > + $ export UBOOT_CFG_CORTEXA="am62x_evm_a53_defconfig beagleplay_a53.config" > + $ export TFA_BOARD=lite > + $ # we dont use any extra TFA parameters > + $ unset TFA_EXTRA_ARGS > + $ export OPTEE_PLATFORM=k3-am62x > + $ export OPTEE_EXTRA_ARGS="CFG_WITH_SOFTWARE_PRNG=y" > + > +.. include:: am62x_sk.rst > + :start-after: .. am62x_evm_rst_include_start_build_steps > + :end-before: .. am62x_evm_rst_include_end_build_steps > + > +Target Images > +-------------- > +Copy the below images to an SD card and boot: > + > +* tiboot3-am62x-gp-evm.bin from R5 build as tiboot3.bin > +* tispl.bin_unsigned from Cortex-A build as tispl.bin > +* u-boot.img_unsigned from Cortex-A build as uboot.img > + > +Image formats: > +-------------- > + > +- tiboot3.bin > + > +.. image:: img/multi_cert_tiboot3.bin.svg > + :alt: tiboot3.bin image format > + > +- tispl.bin > + > +.. image:: img/dm_tispl.bin.svg > + :alt: tispl.bin image format > + > +Flash to eMMC > +------------- > + > +The eMMC layout selected is user-friendly for developers. The > +boot hardware partition of the eMMC only contains the fixed-size > +tiboot3.bin image. This is because the contents of the boot partitions > +need to run from the SoC's internal SRAM, which remains a fixed size > +constant. The other components of the boot sequence, such as tispl.bin > +and u-boot.img, are located in the /BOOT partition in the User Defined > +Area (UDA) hardware partition of the eMMC. These components can vary > +significantly in size, so readjusting the boot partition offsets is > +not practical. > + > +.. image:: img/beagleplay_emmc.svg > + :alt: eMMC partitions and boot file organization for BeaglePlay > + > +The following are the steps from Linux shell to program eMMC: > + > +.. code-block:: bash > + > + # # Enable Boot0 boot > + # mmc bootpart enable 1 2 /dev/mmcblk0 > + # mmc bootbus set single_backward x1 x8 /dev/mmcblk0 > + # mmc hwreset enable /dev/mmcblk0 > + > + # # Clear eMMC boot0 > + # echo '0' >> /sys/class/block/mmcblk0boot0/force_ro > + # dd if=/dev/zero of=/dev/mmcblk0boot0 count=32 bs=128k > + # # Write tiboot3.bin > + # dd if=tiboot3.bin of=/dev/mmcblk0boot0 bs=128k > + > + # # Copy the rest of the boot binaries > + # mount /dev/mmcblk0p1 /boot/firmware > + # cp tispl.bin /boot/firmware > + # cp u-boot.img /boot/firmware > + # sync > + > +.. warning :: > + > + The U-Boot is configured to prioritize booting from an SD card if > + it detects a valid boot partition and boot files on it, even if the > + system initially booted from eMMC. The boot order is set as follows: > + > + * SD/MMC > + * eMMC > + * USB > + * PXE > + > +LED patterns during boot > +------------------------ > + > +.. list-table:: USR LED status indication > + :widths: 16 16 > + :header-rows: 1 > + > + * - USR LEDs (012345) > + - Indicates > + > + * - 00000 > + - Boot failure or R5 image not started up > + > + * - 11111 > + - A53 SPL/U-boot has started up > + > + * - 10101 > + - OS boot process has been initiated > + > + * - 01010 > + - OS boot process failed and drops to U-Boot shell > + > +.. note :: > + > + In the table above, 0 indicates LED switched off and 1 indicates LED > + switched ON. > + > +.. warning :: > + > + If the "red" power LED is not glowing, the system power supply is not > + functional. Please refer to `BeaglePlay documentation > + <https://beagleplay.org/>`_ for further information. > + > +A53 SPL DDR Memory Layout > +------------------------- > + > +.. include:: am62x_sk.rst > + :start-after: .. am62x_evm_rst_include_start_ddr_mem_layout > + :end-before: .. am62x_evm_rst_include_end_ddr_mem_layout > + > +Switch Setting for Boot Mode > +---------------------------- > + > +The boot time option is configured via "USR" button on the board. > +See `Beagleplay Schematics > <https://git.beagleboard.org/beagleplay/beagleplay/-/blob/main/BeaglePlay_sch.pdf>`_ > +for details. > + > +.. list-table:: Boot Modes > + :widths: 16 16 16 > + :header-rows: 1 > + > + * - USR Switch Position > + - Primary Boot > + - Secondary Boot > + > + * - Not Pressed > + - eMMC > + - UART > + > + * - Pressed > + - SD/MMC File System (FS) mode > + - USB Device Firmware Upgrade (DFU) mode > + > +To switch to SD card boot mode, hold the USR button while powering on > +with Type-C power supply, then release when power LED lights up. > + > +Debugging U-Boot > +---------------- > + > +See :ref:`Common Debugging environment - OpenOCD<k3_rst_refer_openocd>`: for > +detailed setup and debugging information. > + > +.. warning:: > + > + **OpenOCD support since**: v0.12.0 > + > + If the default package version of OpenOCD in your development > + environment's distribution needs to be updated, it might be necessary to > + build OpenOCD from the source. > + > +.. include:: k3.rst > + :start-after: .. k3_rst_include_start_openocd_connect_tag_connect > + :end-before: .. k3_rst_include_end_openocd_connect_tag_connect > + > +.. include:: k3.rst > + :start-after: .. k3_rst_include_start_openocd_cfg_external_intro > + :end-before: .. k3_rst_include_end_openocd_cfg_external_intro > + > +For example, with BeaglePlay (AM62X platform), the openocd_connect.cfg: > + > +.. code-block:: tcl > + > + # TUMPA example: > + # http://www.tiaowiki.com/w/TIAO_USB_Multi_Protocol_Adapter_User's_Manual > + source [find interface/ftdi/tumpa.cfg] > + > + transport select jtag > + > + # default JTAG configuration has only SRST and no TRST > + reset_config srst_only srst_push_pull > + > + # delay after SRST goes inactive > + adapter srst delay 20 > + > + if { ![info exists SOC] } { > + # Set the SoC of interest > + set SOC am625 > + } > + > + source [find target/ti_k3.cfg] > + > + ftdi tdo_sample_edge falling > + > + # Speeds for FT2232H are in multiples of 2, and 32MHz is tops > + # max speed we seem to achieve is ~20MHz.. so we pick 16MHz > + adapter speed 16000 > diff --git a/doc/board/ti/img/beagleplay_emmc.svg > b/doc/board/ti/img/beagleplay_emmc.svg > new file mode 100644 > index 000000000000..2dec871d6fdd > --- /dev/null > +++ b/doc/board/ti/img/beagleplay_emmc.svg > @@ -0,0 +1,697 @@ > +<?xml version="1.0" encoding="UTF-8" standalone="no"?> > +<!--SPDX-License-Identifier: GPL-2.0-or-later OR BSD-3-Clause--> > + > +<!--Copyright (C) 2023 Texas Instruments Incorporated - > https://www.ti.com/--> > + > +<svg > + version="1.1" > + width="771px" > + height="351px" > + viewBox="-0.5 -0.5 771 351" > + id="svg142" > + sodipodi:docname="beagleplay_emmc.svg" > + inkscape:version="1.1.2 (0a00cf5339, 2022-02-04)" > + xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"; 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> + style="overflow: visible; text-align: left;"> > + <xhtml:div > + style="display: flex; align-items: unsafe center; > justify-content: unsafe center; width: 128px; height: 1px; padding-top: > 325px; margin-left: 391px;"> > + <xhtml:div > + data-drawio-colors="color: rgb(0, 0, 0); " > + style="box-sizing: border-box; font-size: 0px; text-align: > center;"> > + <xhtml:div > + style="display: inline-block; font-size: 12px; font-family: > Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; > white-space: normal; overflow-wrap: > normal;">extlinux/extlinux.conf</xhtml:div> > + </xhtml:div> > + </xhtml:div> > + </foreignObject> > + <text > + x="455" > + y="329" > + fill="rgb(0, 0, 0)" > + font-family="Helvetica" > + font-size="12px" > + text-anchor="middle" > + id="text102">extlinux/extlinux.conf</text> > + </switch> > + </g> > + <path > + d="M 420 240 L 520 240 L 520 290 L 390 290 L 390 270 Z" > + fill="#dae8fc" > + stroke="#6c8ebf" > + stroke-miterlimit="10" > + pointer-events="all" > + id="path108" /> > + <g > + transform="translate(-0.5 -0.5)" > + id="g114"> > + <switch > + id="switch112"> > + <foreignObject > + pointer-events="none" > + width="100%" > + height="100%" > + > requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"; 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> + style="overflow: visible; text-align: left;"> > + <xhtml:div > + style="display: flex; align-items: unsafe center; > justify-content: unsafe center; width: 58px; height: 1px; padding-top: 30px; > margin-left: 1px;"> > + <xhtml:div > + data-drawio-colors="color: rgb(0, 0, 0); " > + style="box-sizing: border-box; font-size: 0px; text-align: > center;"> > + <xhtml:div > + style="display: inline-block; font-size: 12px; font-family: > Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; > white-space: normal; overflow-wrap: normal;">eMMC<xhtml:br /> > +hardware partitions</xhtml:div> > + </xhtml:div> > + </xhtml:div> > + </foreignObject> > + <text > + x="30" > + y="34" > + fill="rgb(0, 0, 0)" > + font-family="Helvetica" > + font-size="12px" > + text-anchor="middle" > + id="text118">eMMC...</text> > + </switch> > + </g> > + <rect > + x="365" > + y="75" > + width="60" > + height="30" > + fill="none" > + stroke="none" > + pointer-events="all" > + id="rect124" /> > + <g > + transform="translate(-0.5 -0.5)" > + id="g130"> > + <switch > + id="switch128"> > + <foreignObject > + pointer-events="none" > + width="100%" > + height="100%" > + > requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"; > + style="overflow: visible; text-align: left;"> > + <xhtml:div > + style="display: flex; align-items: unsafe center; > justify-content: unsafe center; width: 58px; height: 1px; padding-top: 90px; > margin-left: 366px;"> > + <xhtml:div > + data-drawio-colors="color: rgb(0, 0, 0); " > + style="box-sizing: border-box; font-size: 0px; text-align: > center;"> > + <xhtml:div > + style="display: inline-block; font-size: 12px; font-family: > Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; > white-space: normal; overflow-wrap: normal;">UDA partitions</xhtml:div> > + </xhtml:div> > + </xhtml:div> > + </foreignObject> > + <text > + x="395" > + y="94" > + fill="rgb(0, 0, 0)" > + font-family="Helvetica" > + font-size="12px" > + text-anchor="middle" > + id="text126">UDA partit...</text> > + </switch> > + </g> > + </g> > + <switch > + id="switch140"> > + <g > + requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility"; > + id="g134" /> > + <a > + transform="translate(0,-5)" > + xlink:href="https://www.diagrams.net/doc/faq/svg-export-text-problems"; > + target="_blank" > + id="a138"> > + <text > + text-anchor="middle" > + font-size="10px" > + x="50%" > + y="100%" > + id="text136">Text is not SVG - cannot display</text> > + </a> > + </switch> > +</svg> > diff --git a/doc/board/ti/k3.rst b/doc/board/ti/k3.rst > index 5f9bd4dfcbe9..ef31ccd12a42 100644 > --- a/doc/board/ti/k3.rst > +++ b/doc/board/ti/k3.rst > @@ -30,6 +30,7 @@ K3 Based SoCs > .. toctree:: > :maxdepth: 1 > > + am62x_beagleplay > am62x_sk > ../toradex/verdin-am62 > am64x_evm > -- > 2.40.0
