ARM: dts: am335x-boneblack: Enable 1GHz OPP for cpu

Although all PG2.0 silicon may not support 1GHz OPP for the MPU, older
Beaglebone Blacks may have PG2.0 silicon populated and these particular
parts are guaranteed to support the OPP, so enable it for PG2.0 on
am335x-boneblack only.

Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/am335x-boneblack.dts b/arch/arm/boot/dts/am335x-boneblack.dts
index 55c0e954b1464427722d7bc89513af507cff6591..ca721670bd911a7f38e7516601576067981a3fc7 100644 (file)
--- a/arch/arm/boot/dts/am335x-boneblack.dts
+++ b/arch/arm/boot/dts/am335x-boneblack.dts
@@ -33,6 +33,17 @@
        status = "okay";
 };
 
+&cpu0_opp_table {
+       /*
+        * All PG 2.0 silicon may not support 1GHz but some of the early
+        * BeagleBone Blacks have PG 2.0 silicon which is guaranteed
+        * to support 1GHz OPP so enable it for PG 2.0 on this board.
+        */
+       oppnitro@1000000000 {
+               opp-supported-hw = <0x06 0x0100>;
+       };
+};
+
 &am33xx_pinmux {
        nxp_hdmi_bonelt_pins: nxp_hdmi_bonelt_pins {
                pinctrl-single,pins = <