opensbi.git/lib/utils/i2c/objects.mk, branch master

lib: utils/i2c: add minimal SpacemiT I2C driver

2026-05-11T13:51:31Z

Add a simple SpacemiT I2C driver for basic byte transfers over the I2C bus, prioritizing simplicity over performance. The driver operates in PIO mode and does not use interrupts, FIFO, or DMA. The controller is reset at the start of each transaction to ensure a known initial state, regardless of prior configuration by the kernel. This also avoids the need for additional error recovery code. This will be used for communication with onboard PMIC to reset and power-off the board. Signed-off-by: Aurelien Jarno Tested-by: Anand Moon Link: https://lore.kernel.org/r/20260419150857.2705843-2-aurelien@aurel32.net Signed-off-by: Anup Patel

Makefile: change to using .carray.c for carray files

2024-07-04T06:41:45Z

We would like to clean any files generated by the carray scripts by just searching for the filename as the current make system turns f.carray into f.o. Change to make the make system turn f.carray into f.carray.o note, command to go through .mk files changing the .o in the .mk files is: find . -type f -name "*.carray" | xargs -t -I fname /bin/bash -x -c ' fn=`basename -s .carray fname`; echo "$fn"; sed -i `dirname fname `/objects.mk -e s/"$fn".o/"$fn".carray.o/g' Link: https://patchwork.ozlabs.org/project/opensbi/patch/20240401213438.590209-2-ivan.orlov0322@gmail.com/ Reported-by: Ivan Orlov Suggested-by: Andrew Jones Signed-off-by: Ben Dooks Reviewed-by: Andrew Jones Reviewed-by: Anup Patel

lib: utils/i2c: Add minimal StarFive jh7110 I2C driver

2023-03-09T15:30:57Z

Starfive JH7110 I2C IP is synopsys designware. Minimum StarFIve I2C driver to read/send bytes over I2C bus. This allows querying information and perform operation of onboard PMIC, as well as power-off and reset. Signed-off-by: Minda Chen Reviewed-by: Anup Patel

lib: utils/i2c: Use kconfig for enabling/disabling drivers

2022-08-08T04:03:57Z

We update i2c drivers makefile to use kconfig for enabling/disabling drivers. To avoid compile errors, we also enable appropriate i2c drivers for each platform. Signed-off-by: Anup Patel Tested-by: Andrew Jones Acked-by: Atish Patra Tested-by: Atish Patra

lib: utils/i2c: Generate FDT i2c adapter driver list at compile-time

2022-05-13T03:56:45Z

Instead of having FDT i2c adapter driver list hard-coded in the C source, we generate it using carray.sh at compile-time. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: utils/i2c: Add minimal SiFive I2C driver

2021-11-12T04:59:08Z

Minimum SiFive I2C driver to read/send bytes over I2C bus. This allows querying information and perform operation of onboard PMIC, as well as power-off and reset. Tested-by: Heinrich Schuchardt Reviewed-by: Alexandre Ghiti Tested-by: Alexandre Ghiti Signed-off-by: Nikita Shubin

lib: utils/i2c: Add simple FDT based I2C framework

2021-11-12T04:49:45Z

FDT based I2C framework on the top of I2C library. The drivers are probed on demand by fdt_i2c_adapter_get function. Tested-by: Heinrich Schuchardt Reviewed-by: Alexandre Ghiti Tested-by: Alexandre Ghiti Signed-off-by: Nikita Shubin

lib: utils/i2c: Add generic I2C configuration library

2021-11-12T04:47:50Z

Helper library to keep track of registered I2C adapters, identified by dts offset, basic send/read functions and adapter configuration (enable, set dividers, etc...). Tested-by: Heinrich Schuchardt Reviewed-by: Alexandre Ghiti Tested-by: Alexandre Ghiti Signed-off-by: Nikita Shubin