This is the baseline support for the SIMATIC IOT2050 devices.
Changes in v5: - rebased - use DEFAULT_LINUX_BOOT_ENV from ti_armv7_common.h, rather than home-grown values - avoids misaligned kernel load address - no longer exposes issue around LMB reservations
Changes in v4: - rebased - make rtd-wdt firmware a "loadable" inside U-Boot proper fit image, avoiding controversial embedding as object - improved mmc1 removal from boot_targets - fixed various build issues
Changes in v3: - rebased - addressed several checkpatch warnings - a few #ifdef -> IS_ENABLED conversions - comment marker for SPDK identifier in .S file - trailing whitespaces - factored out rti_wdt_load_fw (less #ifdef)
Changes in v2: - rebased - sync with upstream-accepted DT - add boot switch - include watchdog support
Allows to boot mainline 5.10 kernels, but not the original BSP-derived kernel we currently ship as reference. This is due to the TI sysfw ABI breakages between 2.x and 3.x. We will soon provide a transitional kernel that allows booting both firmware ABIs - as long as full upstream kernel support is work in progress.
Note that this baseline support lacks Ethernet drivers. We are working closely with TI to ensure that the to-be-upstreamed icssg-prueth driver will work both with new SR2.0 AM65x silicon as well as with SR1.0 which is used in the currently shipped IOT2050 devices.
A staging tree for complete IOT2050 support can be found at [1]. Full image integration is available via [2].
Jan
[1] https://github.com/siemens/u-boot/commits/jan/iot2050 [2] https://github.com/siemens/meta-iot2050
Jan Kiszka (5): arm: dts: Add IOT2050 device tree files board: siemens: Add support for SIMATIC IOT2050 devices arm64: dts: ti: k3-am65-mcu: Add RTI watchdog entry watchdog: rti_wdt: Add support for loading firmware iot2050: Enable watchdog support, but do not auto-start it
arch/arm/dts/Makefile | 7 +- arch/arm/dts/k3-am65-iot2050-boot-image.dtsi | 121 ++++ .../dts/k3-am65-iot2050-common-u-boot.dtsi | 103 +++ arch/arm/dts/k3-am65-iot2050-common.dtsi | 655 ++++++++++++++++++ arch/arm/dts/k3-am65-iot2050-spl.dts | 16 + arch/arm/dts/k3-am65-mcu.dtsi | 9 + arch/arm/dts/k3-am6528-iot2050-basic.dts | 67 ++ arch/arm/dts/k3-am6548-iot2050-advanced.dts | 66 ++ arch/arm/mach-k3/Kconfig | 1 + board/siemens/iot2050/Kconfig | 32 + board/siemens/iot2050/MAINTAINERS | 8 + board/siemens/iot2050/Makefile | 10 + board/siemens/iot2050/README | 65 ++ board/siemens/iot2050/board.c | 284 ++++++++ board/siemens/iot2050/config.mk | 8 + configs/iot2050_defconfig | 138 ++++ drivers/watchdog/Kconfig | 20 + drivers/watchdog/rti_wdt.c | 88 +++ include/configs/iot2050.h | 62 ++ 19 files changed, 1759 insertions(+), 1 deletion(-) create mode 100644 arch/arm/dts/k3-am65-iot2050-boot-image.dtsi create mode 100644 arch/arm/dts/k3-am65-iot2050-common-u-boot.dtsi create mode 100644 arch/arm/dts/k3-am65-iot2050-common.dtsi create mode 100644 arch/arm/dts/k3-am65-iot2050-spl.dts create mode 100644 arch/arm/dts/k3-am6528-iot2050-basic.dts create mode 100644 arch/arm/dts/k3-am6548-iot2050-advanced.dts create mode 100644 board/siemens/iot2050/Kconfig create mode 100644 board/siemens/iot2050/MAINTAINERS create mode 100644 board/siemens/iot2050/Makefile create mode 100644 board/siemens/iot2050/README create mode 100644 board/siemens/iot2050/board.c create mode 100644 board/siemens/iot2050/config.mk create mode 100644 configs/iot2050_defconfig create mode 100644 include/configs/iot2050.h