arm64: dts: ti: k3-am62a7-sk: add 1.4ghz opp entry

The AM62Ax reference board is capable of supplying 0v85 to the VDD_CORE
which allows the Cortex-A53s to operate at 1.4GHz according to chapter
7.5 of the SoC's data sheet[0]. Append the 1.4Ghz entry to the OPP table
to enable this OPP

[0] https://www.ti.com/lit/ds/symlink/am62a3.pdf

Signed-off-by: Bryan Brattlof <bb@ti.com>
Signed-off-by: Dhruva Gole <d-gole@ti.com>
Link: https://lore.kernel.org/r/20241008132052.407994-3-d-gole@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>

diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
index 67faf46d7a35a5954a5a832b8ab766320b48ea59..a6f0d87a50d8a7ebdb61e609e8071d6681dbec9a 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
@@ -68,6 +68,15 @@
                };
        };
 
+       opp-table {
+               /* Requires VDD_CORE at 0v85 */
+               opp-1400000000 {
+                       opp-hz = /bits/ 64 <1400000000>;
+                       opp-supported-hw = <0x01 0x0004>;
+                       clock-latency-ns = <6000000>;
+               };
+       };
+
        vmain_pd: regulator-0 {
                /* TPS25750 PD CONTROLLER OUTPUT */
                compatible = "regulator-fixed";