Set min/max regulators voltage and add CPU node that hooks up CPU with
voltage regulators.

Signed-off-by: Dmitry Osipenko <dig...@gmail.com>
---
 arch/arm/boot/dts/tegra20-tamonten.dtsi | 31 ++++++++++++++++++-------
 1 file changed, 22 insertions(+), 9 deletions(-)

diff --git a/arch/arm/boot/dts/tegra20-tamonten.dtsi 
b/arch/arm/boot/dts/tegra20-tamonten.dtsi
index 20137fc578b1..e9db60f4c317 100644
--- a/arch/arm/boot/dts/tegra20-tamonten.dtsi
+++ b/arch/arm/boot/dts/tegra20-tamonten.dtsi
@@ -357,17 +357,19 @@
                                        regulator-always-on;
                                };
 
-                               sm0 {
+                               core_vdd_reg: sm0 {
                                        regulator-name = "vdd_sys_sm0,vdd_core";
-                                       regulator-min-microvolt = <1200000>;
-                                       regulator-max-microvolt = <1200000>;
+                                       regulator-min-microvolt = <1000000>;
+                                       regulator-max-microvolt = <1300000>;
+                                       regulator-coupled-with = <&rtc_vdd_reg>;
+                                       regulator-coupled-max-spread = <150000>;
                                        regulator-always-on;
                                };
 
-                               sm1 {
+                               cpu_vdd_reg: sm1 {
                                        regulator-name = "vdd_sys_sm1,vdd_cpu";
-                                       regulator-min-microvolt = <1000000>;
-                                       regulator-max-microvolt = <1000000>;
+                                       regulator-min-microvolt = <750000>;
+                                       regulator-max-microvolt = <1125000>;
                                        regulator-always-on;
                                };
 
@@ -391,10 +393,13 @@
                                        regulator-always-on;
                                };
 
-                               ldo2 {
+                               rtc_vdd_reg: ldo2 {
                                        regulator-name = "vdd_ldo2,vdd_rtc";
-                                       regulator-min-microvolt = <1200000>;
-                                       regulator-max-microvolt = <1200000>;
+                                       regulator-min-microvolt = <950000>;
+                                       regulator-max-microvolt = <1300000>;
+                                       regulator-coupled-with = 
<&core_vdd_reg>;
+                                       regulator-coupled-max-spread = <150000>;
+                                       regulator-always-on;
                                };
 
                                ldo3 {
@@ -531,4 +536,12 @@
                        enable-active-high;
                };
        };
+
+       cpus {
+               cpu0: cpu@0 {
+                       cpu-supply = <&cpu_vdd_reg>;
+                       core-supply = <&core_vdd_reg>;
+                       rtc-supply = <&rtc_vdd_reg>;
+               };
+       };
 };
-- 
2.19.0

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