This adds I2C support in the device tree of the T-Head TH1520 RISCV-SoC and a default configuration for the BeagleV-Ahead. It appears that the TH1520 I2C is already supported in the upstream kernel through the Synopsis Designware I2C adapter driver. As there is no clock driver for this board as of today, this patch series uses a fixed-clock named i2c_ic_clk. There is also no pinctrl driver yet so pinmux must be handled manually for now. It also fixes the order of the nodes in the device tree to comply with device-tree coding-style. Thomas Bonnefille (4): dt-bindings: i2c: dw: Document compatible thead,th1520-i2c riscv: boot: dts: thead: Fix node ordering in TH1520 device tree riscv: dts: thead: Add TH1520 I2C nodes riscv: dts: thead: Enable I2C on the BeagleV-Ahead .../bindings/i2c/snps,designware-i2c.yaml | 12 ++ .../boot/dts/thead/th1520-beaglev-ahead.dts | 22 ++++ arch/riscv/boot/dts/thead/th1520.dtsi | 120 ++++++++++++++---- 3 files changed, 127 insertions(+), 27 deletions(-) -- 2.44.0
