Drop the operating-points table present in am33xx.dtsi and add an
operating-points-v2 table with all OPPs available for all silicon
revisions along with necessary data for use by ti-cpufreq to selectively
enable the appropriate OPPs at runtime. Also, drop the voltage-tolerance
value and provide voltages for each OPP using the <target min max>
format instead.
Information from AM335x Data Manual, SPRS717i, Revised December 2015,
Table 5-7.
Signed-off-by: Dave Gerlach <d-gerlach@xxxxxx>
---
arch/arm/boot/dts/am33xx.dtsi | 88 ++++++++++++++++++++++++++++++++++++-------
1 file changed, 75 insertions(+), 13 deletions(-)
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 52be48bbd2dd..df1106f89ff2 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -45,19 +45,9 @@
device_type = "cpu";
reg = <0>;
- /*
- * To consider voltage drop between PMIC and SoC,
- * tolerance value is reduced to 2% from 4% and
- * voltage value is increased as a precaution.
- */
- operating-points = <
- /* kHz uV */
- 720000 1285000
- 600000 1225000
- 500000 1125000
- 275000 1125000
- >;
- voltage-tolerance = <2>; /* 2 percentage */
+ operating-points-v2 = <&cpu0_opp_table>;
+ ti,syscon-efuse = <&scm_conf 0x7fc 0x1fff 0>;
+ ti,syscon-rev = <&scm_conf 0x600>;
clocks = <&dpll_mpu_ck>;
clock-names = "cpu";
@@ -66,6 +56,78 @@
};
};
+ cpu0_opp_table: opp_table0 {
+ compatible = "operating-points-v2";
+
+ /*
+ * The three following nodes are marked with opp-suspend
+ * because the can not be enabled simultaneously on a
+ * single SoC.
+ */
+ opp50@300000000 {
+ opp-hz = /bits/ 64 <300000000>;
+ opp-microvolt = <950000 931000 969000>;
+ opp-supported-hw = <0x06 0x0010>;
+ opp-suspend;
+ };
+
+ opp100@275000000 {
+ opp-hz = /bits/ 64 <275000000>;
+ opp-microvolt = <1100000 1078000 1122000>;
+ opp-supported-hw = <0x01 0x00FF>;
+ opp-suspend;
+ };
+
+ opp100@300000000 {
+ opp-hz = /bits/ 64 <300000000>;
+ opp-microvolt = <1100000 1078000 1122000>;
+ opp-supported-hw = <0x06 0x0020>;
+ opp-suspend;
+ };
+
+ opp100@500000000 {
+ opp-hz = /bits/ 64 <500000000>;
+ opp-microvolt = <1100000 1078000 1122000>;
+ opp-supported-hw = <0x01 0xFFFF>;
+ };
+
+ opp100@600000000 {
+ opp-hz = /bits/ 64 <600000000>;
+ opp-microvolt = <1100000 1078000 1122000>;
+ opp-supported-hw = <0x06 0x0040>;
+ };
+
+ opp120@600000000 {
+ opp-hz = /bits/ 64 <600000000>;
+ opp-microvolt = <1200000 1176000 1224000>;
+ opp-supported-hw = <0x01 0xFFFF>;
+ };
+
+ opp120@720000000 {
+ opp-hz = /bits/ 64 <720000000>;
+ opp-microvolt = <1200000 1176000 1224000>;
+ opp-supported-hw = <0x06 0x0080>;
+ };
+
+ oppturbo@720000000 {
+ opp-hz = /bits/ 64 <720000000>;
+ opp-microvolt = <1260000 1234800 1285200>;
+ opp-supported-hw = <0x01 0xFFFF>;
+ };
+
+ oppturbo@800000000 {
+ opp-hz = /bits/ 64 <800000000>;
+ opp-microvolt = <1260000 1234800 1285200>;
+ opp-supported-hw = <0x06 0x0100>;
+ };
+
+ oppnitro@1000000000 {
+ opp-hz = /bits/ 64 <1000000000>;
+ opp-microvolt = <1325000 1298500 1351500>;
+ opp-supported-hw = <0x04 0x0200>;
+ };
+ };
+
pmu {
compatible = "arm,cortex-a8-pmu";
interrupts = <3>;
--
2.7.3
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
