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doc: ti: Add readme for AM62x SK Add info of boot flow and build steps for AM62x SK. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Reviewed-by: Bryan Brattlof <bb@ti.com>
2022-05-25 08:08:50 +00:00
.. SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
.. sectionauthor:: Vignesh Raghavendra <vigneshr@ti.com>
doc: ti: reorganize existing ti docs Texas Instruments produces quite a lot of SoCs based upon a common architecture 'generation'. (eg: OMAP, K3) TI's existing documentation layout makes noticing this generation jump rather difficult. To make navigation easier, split the existing documentation into individual SoC families so we may begin grouping them according to their generational (eg: OMAP, K3) families. Signed-off-by: Bryan Brattlof <bb@ti.com> Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
2022-12-19 20:29:49 +00:00
AM62 Platforms
===============
doc: ti: Add readme for AM62x SK Add info of boot flow and build steps for AM62x SK. Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com> Reviewed-by: Bryan Brattlof <bb@ti.com>
2022-05-25 08:08:50 +00:00
Introduction:
-------------
The AM62 SoC family is the follow on AM335x built on the K3 Multicore
SoC architecture platform, providing ultra-low-power modes, dual
display, multi-sensor edge compute, security and other BOM-saving
integrations. The AM62 SoC targets a broad market to enable
applications such as Industrial HMI, PLC/CNC/Robot control, Medical
Equipment, Building Automation, Appliances and more.
Some highlights of this SoC are:
* Quad-Cortex-A53s (running up to 1.4GHz) in a single cluster.
Pin-to-pin compatible options for single and quad core are available.
* Cortex-M4F for general-purpose or safety usage.
* Dual display support, providing 24-bit RBG parallel interface and
OLDI/LVDS-4 Lane x2, up to 200MHz pixel clock support for 2K display
resolution.
* Selectable GPU support, up to 8GFLOPS, providing better user experience
in 3D graphic display case and Android.
* PRU(Programmable Realtime Unit) support for customized programmable
interfaces/IOs.
* Integrated Giga-bit Ethernet switch supporting up to a total of two
external ports (TSN capable).
* 9xUARTs, 5xSPI, 6xI2C, 2xUSB2, 3xCAN-FD, 3x eMMC and SD, GPMC for
NAND/FPGA connection, OSPI memory controller, 3xMcASP for audio,
1x CSI-RX-4L for Camera, eCAP/eQEP, ePWM, among other peripherals.
* Dedicated Centralized System Controller for Security, Power, and
Resource Management.
* Multiple low power modes support, ex: Deep sleep, Standby, MCU-only,
enabling battery powered system design.
More details can be found in the Technical Reference Manual:
https://www.ti.com/lit/pdf/spruiv7
Boot Flow:
----------
Below is the pictorial representation of boot flow:
.. code-block:: text
+------------------------------------------------------------------------+
| TIFS | Main R5 | A53 |
+------------------------------------------------------------------------+
| +--------+ | | |
| | Reset | | | |
| +--------+ | | |
| : | | |
| +--------+ | +-----------+ | |
| | *ROM* |----------|-->| Reset rls | | |
| +--------+ | +-----------+ | |
| | | | : | |
| | ROM | | : | |
| |services| | : | |
| | | | +-------------+ | |
| | | | | *R5 ROM* | | |
| | | | +-------------+ | |
| | |<---------|---|Load and auth| | |
| | | | | tiboot3.bin | | |
| +--------+ | +-------------+ | |
| | |<---------|---| Load sysfw | | |
| | | | | part to TIFS| | |
| | | | | core | | |
| | | | +-------------+ | |
| | | | : | |
| | | | : | |
| | | | : | |
| | | | +-------------+ | |
| | | | | *R5 SPL* | | |
| | | | +-------------+ | |
| | | | | DDR | | |
| | | | | config | | |
| | | | +-------------+ | |
| | | | | Load | | |
| | | | | tispl.bin | | |
| | | | +-------------+ | |
| | | | | Load R5 | | |
| | | | | firmware | | |
| | | | +-------------+ | |
| | |<---------|---| Start A53 | | |
| | | | | and jump to | | |
| | | | | DM fw image | | |
| | | | +-------------+ | |
| | | | | +-----------+ |
| | |----------|-----------------------|---->| Reset rls | |
| | | | | +-----------+ |
| | TIFS | | | : |
| |Services| | | +-----------+ |
| | |<---------|-----------------------|---->|*ATF/OPTEE*| |
| | | | | +-----------+ |
| | | | | : |
| | | | | +-----------+ |
| | |<---------|-----------------------|---->| *A53 SPL* | |
| | | | | +-----------+ |
| | | | | | Load | |
| | | | | | u-boot.img| |
| | | | | +-----------+ |
| | | | | : |
| | | | | +-----------+ |
| | |<---------|-----------------------|---->| *U-Boot* | |
| | | | | +-----------+ |
| | | | | | prompt | |
| | |----------|-----------------------|-----+-----------+-----|
| +--------+ | | |
| | | |
+------------------------------------------------------------------------+
- Here TIFS acts as master and provides all the critical services. R5/A53
requests TIFS to get these services done as shown in the above diagram.
Sources:
--------
1. SYSFW:
Tree: git://git.ti.com/k3-image-gen/k3-image-gen.git
Branch: master
2. ATF:
Tree: https://github.com/ARM-software/arm-trusted-firmware.git
Branch: master
3. OPTEE:
Tree: https://github.com/OP-TEE/optee_os.git
Branch: master
4. U-Boot:
Tree: https://source.denx.de/u-boot/u-boot
Branch: master
5. TI Linux Firmware:
Tree: git://git.ti.com/processor-firmware/ti-linux-firmware.git
Branch: ti-linux-firmware
Build procedure:
----------------
1. ATF:
.. code-block:: text
$ make CROSS_COMPILE=aarch64-none-linux-gnu- ARCH=aarch64 PLAT=k3 TARGET_BOARD=lite SPD=opteed
2. OPTEE:
.. code-block:: text
$ make PLATFORM=k3 CFG_ARM64_core=y CROSS_COMPILE=arm-none-linux-gnueabihf- CROSS_COMPILE64=aarch64-none-linux-gnu-
3. U-Boot:
* 3.1 R5:
.. code-block:: text
$ make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabihf- am62x_evm_r5_defconfig O=/tmp/r5
$ make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabihf- O=/tmp/r5
$ cd <k3-image-gen>
$ make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabihf- SOC=am62x SBL=/tmp/r5/spl/u-boot-spl.bin SYSFW_PATH=<path to ti-linux-firmware>/ti-sysfw/ti-fs-firmware-am62x-gp.bin
Use the tiboot3.bin generated from last command
* 3.2 A53:
.. code-block:: text
$ make ARCH=arm CROSS_COMPILE=aarch64-none-linux-gnu- am62x_evm_a53_defconfig O=/tmp/a53
$ make ARCH=arm CROSS_COMPILE=aarch64-none-linux-gnu- ATF=<path to ATF dir>/build/k3/lite/release/bl31.bin TEE=<path to OPTEE OS dir>/out/arm-plat-k3/core/tee-pager_v2.bin DM=<path to ti-linux-firmware>/ti-dm/am62xx/ipc_echo_testb_mcu1_0_release_strip.xer5f O=/tmp/a53
Target Images
--------------
Copy the below images to an SD card and boot:
- tiboot3.bin from step 3.1
- tispl.bin, u-boot.img from 3.2
Image formats:
--------------
- tiboot3.bin:
.. code-block:: text
+-----------------------+
| X.509 |
| Certificate |
| +-------------------+ |
| | | |
| | R5 | |
| | u-boot-spl.bin | |
| | | |
| +-------------------+ |
| | | |
| |TIFS with board cfg| |
| | | |
| +-------------------+ |
| | | |
| | | |
| | FIT header | |
| | +---------------+ | |
| | | | | |
| | | DTB 1...N | | |
| | +---------------+ | |
| +-------------------+ |
+-----------------------+
- tispl.bin
.. code-block:: text
+-----------------------+
| |
| FIT HEADER |
| +-------------------+ |
| | | |
| | A53 ATF | |
| +-------------------+ |
| | | |
| | A53 OPTEE | |
| +-------------------+ |
| | | |
| | R5 DM FW | |
| +-------------------+ |
| | | |
| | A53 SPL | |
| +-------------------+ |
| | | |
| | SPL DTB 1...N | |
| +-------------------+ |
+-----------------------+
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