Am Freitag, den 21.10.2016, 15:17 +0200 schrieb Geert Uytterhoeven: > Add DT bindings for the Renesas R-Car Reset Controller (R-Car Gen1 > RESET/WDT and R-Car Gen2/Gen3 and RZ/G RST). > > As the features provided by the hardware module differ a lot across the > various SoC families and members, only SoC-specific compatible values > are defined. > > For now we use the RST only for providing access to the state of the > mode pins, which is needed by the clock driver. > > Signed-off-by: Geert Uytterhoeven <[email protected]> > Acked-by: Magnus Damm <[email protected]> > Acked-by: Dirk Behme <[email protected]> > Acked-by: Laurent Pinchart <[email protected]> > --- > v4: > - Add Acked-by, > - Fix comma and period in list, > - Add RZ/G1M and RZ/G1E, > > v3: > - Clarify current usage, > - Use "renesas,<soctype>-rst" instead of "renesas,rst-<soctype>", > - Drop "syscon" compatible value, > - Add R-Car M3-W, > - Add R-Car Gen1, > > v2: > - Add Acked-by. > --- > .../devicetree/bindings/reset/renesas,rst.txt | 37 > ++++++++++++++++++++++ > 1 file changed, 37 insertions(+) > create mode 100644 Documentation/devicetree/bindings/reset/renesas,rst.txt > > diff --git a/Documentation/devicetree/bindings/reset/renesas,rst.txt > b/Documentation/devicetree/bindings/reset/renesas,rst.txt > new file mode 100644 > index 0000000000000000..fe5e0f37b3c93579 > --- /dev/null > +++ b/Documentation/devicetree/bindings/reset/renesas,rst.txt > @@ -0,0 +1,37 @@ > +DT bindings for the Renesas R-Car and RZ/G Reset Controllers > + > +The R-Car and RZ/G Reset Controllers provide reset control, and implement the > +following functions: > + - Latching of the levels on mode pins when PRESET# is negated, > + - Mode monitoring register, > + - Reset control of peripheral devices (on R-Car Gen1), > + - Watchdog timer (on R-Car Gen1), > + - Register-based reset control and boot address registers for the various > CPU > + cores (on R-Car Gen2 and Gen3, and on RZ/G). > + > + > +Required properties: > + - compatible: Should be > + - "renesas,<soctype>-reset-wdt" for R-Car Gen1, > + - "renesas,<soctype>-rst" for R-Car Gen2 and Gen3, and RZ/G > + Examples with soctypes are: > + - "renesas,r8a7743-rst" (RZ/G1M) > + - "renesas,r8a7745-rst" (RZ/G1E) > + - "renesas,r8a7778-reset-wdt" (R-Car M1A) > + - "renesas,r8a7779-reset-wdt" (R-Car H1) > + - "renesas,r8a7790-rst" (R-Car H2) > + - "renesas,r8a7791-rst" (R-Car M2-W) > + - "renesas,r8a7792-rst" (R-Car V2H > + - "renesas,r8a7793-rst" (R-Car M2-N) > + - "renesas,r8a7794-rst" (R-Car E2) > + - "renesas,r8a7795-rst" (R-Car H3) > + - "renesas,r8a7796-rst" (R-Car M3-W) > + - reg: Address start and address range for the device. > + > + > +Example: > + > + rst: reset-controller@e6160000 { > + compatible = "renesas,r8a7795-rst"; > + reg = <0 0xe6160000 0 0x0200>; > + };
Acked-by: Philipp Zabel <[email protected]> regards Philipp
