opensbi

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Aurelien Jarno b10e18ec85 lib: utils/i2c: add minimal SpacemiT I2C driver

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 <aurelien@aurel32.net>
Tested-by: Anand Moon <linux.amoon@gmail.com>
Link: https://lore.kernel.org/r/20260419150857.2705843-2-aurelien@aurel32.net
Signed-off-by: Anup Patel <anup@brainfault.org>

2026-05-11 19:21:31 +05:30

dw_i2c.c

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

2023-03-09 21:00:57 +05:30

fdt_i2c_adapter_drivers.carray

lib: utils/i2c: Use fdt_driver for initialization

2024-11-28 17:38:05 +05:30

fdt_i2c_dw.c

lib: utils/i2c: Use fdt_driver for initialization

2024-11-28 17:38:05 +05:30

fdt_i2c_sifive.c

lib: utils/i2c: Use fdt_driver for initialization