On Sun, Jun 21, 2020 at 05:56:54PM +0300, Horia Geantă wrote: > RNGB block is found in some i.MX6 SoCs - 6SL, 6SLL, 6ULL, 6ULZ. > Add corresponding compatible strings. > > Note: > > Several NXP SoC from QorIQ family (P1010, P1023, P4080, P3041, P5020) > also have a RNGB, however it's part of the CAAM > (Cryptograhic Accelerator and Assurance Module) crypto accelerator. > In this case, RNGB is managed in the caam driver > (drivers/crypto/caam/), since it's tightly related to > the caam "job ring" interface, not to mention CAAM internally relying on > RNGB as source of randomness. > > On the other hand, the i.MX6 SoCs with RNGB have a DCP > (Data Co-Processor) crypto accelerator and this block and RNGB > are independent. > > Signed-off-by: Horia Geantă <horia.geanta@xxxxxxx> > --- > Documentation/devicetree/bindings/rng/imx-rng.txt | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/Documentation/devicetree/bindings/rng/imx-rng.txt b/Documentation/devicetree/bindings/rng/imx-rng.txt > index 405c2b00ccb0..eb227db9e684 100644 > --- a/Documentation/devicetree/bindings/rng/imx-rng.txt > +++ b/Documentation/devicetree/bindings/rng/imx-rng.txt > @@ -5,6 +5,9 @@ Required properties: > "fsl,imx21-rnga" > "fsl,imx31-rnga" (backward compatible with "fsl,imx21-rnga") > "fsl,imx25-rngb" > + "fsl,imx6sl-rngb" > + "fsl,imx6sll-rngb" > + "fsl,imx6ull-rngb" These are all different? IOW, no fallback compatible? > "fsl,imx35-rngc" > - reg : offset and length of the register set of this block > - interrupts : the interrupt number for the RNG block > -- > 2.17.1 >
