On Thu, 20 Jun 2024 19:30:56 +0200, Théo Lebrun wrote: > Add documentation to describe the "Other Logic Block" system-controller. > It deals with three platforms: EyeQ5, EyeQ6L and EyeQ6H. First two have > a single instance, whereas EyeQ6H has seven named instances. > > Features provided are: > - Clocks, children to main crystal. Some PLLs and divider clocks. > - Resets. Some instances DO NOT have reset. > - Pinctrl. Only EyeQ5 has such feature. > > Those are NOT the only features exposed in OLB system-controllers! Many > individual registers, related to IP block integration, can be found. > Additional features will be exposed over time. > > We simplify devicetree phandles to OLB in two ways: > > - Compatibles exposing a single clock do not ask for a index argument. > This means we use EyeQ6H OLB south (it has four clocks): > > clocks = <&olb_south EQ6HC_SOUTH_PLL_PER>; > > But use EyeQ6H OLB east (it has one clock): > > clocks = <&olb_east>; > > - Compatibles exposing a single reset domain do not ask for a domain > index, only a reset index. > This means we use EyeQ5 OLB (it has three domains): > > resets = <&olb 0 10>; > > But use EyeQ6H west reset (it has one domain): > > resets = <&olb_west 3>; > > About pinctrl subnodes: all pins have two functionality, either GPIO or > something-else. The latter is pin dependent, we express constraints > using many if-then. > > Signed-off-by: Théo Lebrun <theo.lebrun@xxxxxxxxxxx> > --- > .../bindings/soc/mobileye/mobileye,eyeq5-olb.yaml | 374 +++++++++++++++++++++ > MAINTAINERS | 2 + > include/dt-bindings/clock/mobileye,eyeq5-clk.h | 21 ++ > 3 files changed, 397 insertions(+) > Reviewed-by: Rob Herring (Arm) <robh@xxxxxxxxxx>
