2021-09-18 06:17:53 +00:00
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.. SPDX-License-Identifier: GPL-2.0+
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.. sectionauthor:: Jan Kiszka <jan.kiszka@siemens.com>
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SIMATIC IOT2050 BASIC and ADVANCED
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==================================
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The SIMATIC IOT2050 is an open industrial IoT gateway that is using the TI
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AM6528 GP (Basic variant) or the AM6548 HS (Advanced variant). The Advanced
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variant is prepared for secure boot.
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The IOT2050 starts only from OSPI. It loads a Siemens-provided bootloader
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called SE-Boot for the MCU domain (R5F cores), then hands over to ATF and
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OP-TEE, before booting U-Boot on the A53 cores. This describes how to build all
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open artifacts into a flashable image for the OSPI flash. The flash image will
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work on both variants.
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Dependencies
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------------
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ATF: Upstream release 2.4 or newer
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OP-TEE: Upstream release 3.10.0 or newer
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Binary dependencies can be found in
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https://github.com/siemens/meta-iot2050/tree/master/recipes-bsp/u-boot/files/prebuild.
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The following binaries from that source need to be present in the build folder:
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- tiboot3.bin
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- sysfw.itb
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- sysfw.itb_HS
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- sysfw_sr2.itb
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- sysfw_sr2.itb_HS
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Building
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--------
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Make sure that CROSS_COMPILE is set appropriately:
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.. code-block:: text
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$ export CROSS_COMPILE=aarch64-linux-gnu-
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ATF:
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.. code-block:: text
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$ make PLAT=k3 SPD=opteed K3_USART=1
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OP-TEE:
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.. code-block:: text
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2021-11-28 21:57:01 +00:00
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$ make PLATFORM=k3-am65x CFG_ARM64_core=y CFG_TEE_CORE_LOG_LEVEL=2 CFG_CONSOLE_UART=1 CFG_USER_TA_TARGETS="ta_arm64"
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2021-09-18 06:17:53 +00:00
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U-Boot:
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.. code-block:: text
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$ export ATF=/path/to/bl31.bin
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$ export TEE=/path/to/tee-pager_v2.bin
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$ make iot2050_defconfig
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$ make
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Flashing
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--------
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Via U-Boot:
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.. code-block:: text
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IOT2050> sf probe
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IOT2050> load mmc 0:1 $loadaddr /path/to/flash.bin
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IOT2050> sf update $loadaddr 0x0 $filesize
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Via external programmer Dediprog SF100 or SF600:
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.. code-block:: text
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$ dpcmd --vcc 2 -v -u flash.bin
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