IPQ40xx: Add PRNG support

Since we now have the driver for Qualcomm PRNG HW, lets use it and add the necessary clocks and nodes.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Cc: Luka Perkov <luka.perkov@sartura.hr>

diff --git a/arch/arm/dts/qcom-ipq4019.dtsi b/arch/arm/dts/qcom-ipq4019.dtsi
index 031691e..7a52ea2 100644 (file)
--- a/arch/arm/dts/qcom-ipq4019.dtsi
+++ b/arch/arm/dts/qcom-ipq4019.dtsi
@@ -60,6 +60,13 @@
                        u-boot,dm-pre-reloc;
                };
 
+               rng: rng@22000 {
+                       compatible = "qcom,prng";
+                       reg = <0x22000 0x140>;
+                       clocks = <&gcc GCC_PRNG_AHB_CLK>;
+                       status = "disabled";
+               };
+
                reset: gcc-reset@1800000 {
                        compatible = "qcom,gcc-reset-ipq4019";
                        reg = <0x1800000 0x60000>;

diff --git a/arch/arm/mach-ipq40xx/clock-ipq4019.c b/arch/arm/mach-ipq40xx/clock-ipq4019.c
index d5b5f4c..31ae971 100644 (file)
--- a/arch/arm/mach-ipq40xx/clock-ipq4019.c
+++ b/arch/arm/mach-ipq40xx/clock-ipq4019.c
@@ -54,6 +54,10 @@ static int msm_enable(struct clk *clk)
                /* This clock is already initialized by SBL1 */
                return 0;
                break;
+       case GCC_PRNG_AHB_CLK: /*PRNG*/
+               /* This clock is already initialized by SBL1 */
+               return 0;
+               break;
        default:
                return 0;
        }