From: Mattijs Korpershoek <mkorpershoek@baylibre.com>
To: Nishanth Menon <nm@ti.com>, Neha Francis <n-francis@ti.com>,
Tom Rini <trini@konsulko.com>
Cc: Bryan <bb@ti.com>, Praneeth <praneeth@ti.com>,
Andrew <afd@ti.com>, Robert Nelson <robertcnelson@gmail.com>,
Vignesh <vigneshr@ti.com>,
u-boot@lists.denx.de, Jan Kiszka <jan.kiszka@siemens.com>,
Nishanth Menon <nm@ti.com>,
Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Subject: Re: [PATCH V4 8/8] doc: board: ti: Add BeaglePlay documentation
Date: Wed, 23 Aug 2023 10:36:53 +0200 [thread overview]
Message-ID: <87fs4af93u.fsf@baylibre.com> (raw)
In-Reply-To: <20230822184135.2328409-9-nm@ti.com>
Hi Nishanth,
On mar., août 22, 2023 at 13:41, Nishanth Menon <nm@ti.com> wrote:
> Add base documentation for BeaglePlay
>
> Signed-off-by: Nishanth Menon <nm@ti.com>
This is great! Thanks a lot for the documentation update, especially the
"Flash to eMMC" section.
Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
> ---
> Cc: Heinrich Schuchardt <heinrich.schuchardt@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-nm@ti.com/
> V2: https://lore.kernel.org/u-boot/20230727234446.3651836-5-nm@ti.com/
> V1: https://lore.kernel.org/all/20230725185253.2123433-7-nm@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 <nm@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 @@
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> +
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> 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
next prev parent reply other threads:[~2023-08-23 8:37 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-22 18:41 [PATCH V4 0/8] board: ti: Add support for BeaglePlay Nishanth Menon
2023-08-22 18:41 ` [PATCH V4 1/8] env_default: Allow CONFIG_EXTRA_ENV_TEXT to override CFG_EXTRA_ENV_SETTINGS Nishanth Menon
2023-08-22 23:16 ` Simon Glass
2023-08-22 23:33 ` Nishanth Menon
2023-08-23 2:34 ` Simon Glass
2023-08-23 11:42 ` Nishanth Menon
2023-08-23 7:47 ` Mattijs Korpershoek
2023-08-23 14:42 ` Tom Rini
2023-08-23 15:06 ` Nishanth Menon
2023-08-23 15:17 ` Tom Rini
2023-08-22 18:41 ` [PATCH V4 2/8] configs: am62x_evm*: Enable EMMC_BOOT configuration Nishanth Menon
2023-08-23 7:50 ` Mattijs Korpershoek
2023-08-22 18:41 ` [PATCH V4 3/8] arm: mach-k3: am625: Add support for UDA FS Nishanth Menon
2023-08-23 7:54 ` Mattijs Korpershoek
2023-08-22 18:41 ` [PATCH V4 4/8] drivers: mmc: am654_sdhci: Update OTAP/ITAP delay Nishanth Menon
2023-08-23 8:06 ` Mattijs Korpershoek
2023-08-23 10:15 ` Nitin Yadav
2023-08-23 10:18 ` Nitin Yadav
2023-08-23 11:38 ` Nishanth Menon
2023-08-23 14:21 ` Nishanth Menon
2023-08-22 18:41 ` [PATCH V4 5/8] arm: dts: k3-am625-sk-binman: Add labels for unsigned binary Nishanth Menon
2023-08-23 8:09 ` Mattijs Korpershoek
2023-08-22 18:41 ` [PATCH V4 6/8] arm: dts: Add k3-am625-beagleplay Nishanth Menon
2023-08-23 8:26 ` Mattijs Korpershoek
2023-08-22 18:41 ` [PATCH V4 7/8] board: ti: am62x: Add am62x_beagleplay_* defconfigs and env file Nishanth Menon
2023-08-23 8:29 ` Mattijs Korpershoek
2023-08-23 14:42 ` Tom Rini
2023-08-22 18:41 ` [PATCH V4 8/8] doc: board: ti: Add BeaglePlay documentation Nishanth Menon
2023-08-23 8:36 ` Mattijs Korpershoek [this message]
2023-08-23 15:30 ` Simon Glass
2023-08-23 17:15 ` Tom Rini
2023-08-23 23:57 ` Simon Glass
2023-08-24 0:18 ` Nishanth Menon
2023-08-24 3:01 ` Simon Glass
2023-08-24 3:27 ` Nishanth Menon
2023-08-24 8:21 ` Mattijs Korpershoek
2023-08-24 12:07 ` Nishanth Menon
2023-08-24 13:16 ` Neha Malcom Francis
2023-08-24 14:20 ` Tom Rini
2023-08-24 14:41 ` Simon Glass
2023-08-24 14:43 ` Tom Rini
2023-08-24 14:46 ` Simon Glass
2023-08-25 14:17 ` Neha Malcom Francis
2023-08-24 14:16 ` Tom Rini
2023-08-25 1:04 ` Simon Glass
2023-08-25 1:22 ` Nishanth Menon
2023-08-25 1:31 ` Simon Glass
2023-08-25 1:59 ` Nishanth Menon
2023-08-25 23:45 ` Simon Glass
2023-08-26 1:06 ` Robert Nelson
2023-08-26 2:04 ` Simon Glass
2023-08-28 13:01 ` Nishanth Menon
2023-08-23 7:44 ` [PATCH V4 0/8] board: ti: Add support for BeaglePlay Mattijs Korpershoek
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