Newer revisions of SolidRun Clearfog Base/Pro carriers and Armada 388 SOM add EEPROM storage for board detection. This patch series adds support for reading EEPROM stored board information, and using it to set RAM training parameters, serdes configuration, and kernel DT selection.
The information is stored in EEPROM in TLV format defined for the ONIE project.
https://opencomputeproject.github.io/onie/design-spec/hw_requirements.html
This series add the sys_eeprom command from ONIE carried U-Boot patch, with a number for changes as described in the patch log. The TLV format is unchanged.
This series also adds support for the newly introduced single board, Aramda 385 based Clearfog GTR system. RAM configuration on that system requires both Armada 38x DDR clocks to be enabled. The first patch in this series adds the necessary code to allow per-board selection of DDR clock.
Baruch Siach (10): ddr: marvell: a38x: allow board specific clock out setup arm: mvebu: clearfog: enable both DDR clocks cmd: add sys_eeprom command ARM: mvebu: clearfog: add EEPROM devices ARM: mvebu: clearfog: add support for EEPROM TLV info ARM: mvebu: clearfog: read basic TLV data ARM: mvebu: clearfog: print TLV stored product name ARM: mvebu: clearfog: run-time selection of DT file ARM: mvebu: clearfog: add Clearfog GTR support ARM: mvebu: clearfog: add Clearfog Base serdes configuration
arch/arm/dts/armada-388-clearfog-u-boot.dtsi | 12 + arch/arm/dts/armada-388-clearfog.dts | 6 + .../arm/dts/armada-38x-solidrun-microsom.dtsi | 8 + arch/arm/mach-mvebu/Kconfig | 1 + board/solidrun/clearfog/clearfog.c | 164 ++- cmd/Kconfig | 12 + cmd/Makefile | 2 + cmd/sys_eeprom.c | 1078 +++++++++++++++++ configs/clearfog_defconfig | 5 + drivers/ddr/marvell/a38x/ddr3_training.c | 10 +- drivers/ddr/marvell/a38x/ddr_topology_def.h | 3 + include/sys_eeprom.h | 169 +++ 12 files changed, 1466 insertions(+), 4 deletions(-) create mode 100644 cmd/sys_eeprom.c create mode 100644 include/sys_eeprom.h