1 * Exynos Thermal Management Unit (TMU)
3 ** Required properties:
5 - compatible : One of the following:
6 "samsung,exynos3250-tmu"
7 "samsung,exynos4412-tmu"
8 "samsung,exynos4210-tmu"
9 "samsung,exynos5250-tmu"
10 "samsung,exynos5260-tmu"
11 "samsung,exynos5420-tmu" for TMU channel 0, 1 on Exynos5420
12 "samsung,exynos5420-tmu-ext-triminfo" for TMU channels 2, 3 and 4
13 Exynos5420 (Must pass triminfo base and triminfo clock)
14 "samsung,exynos5440-tmu"
16 - interrupt-parent : The phandle for the interrupt controller
17 - reg : Address range of the thermal registers. For soc's which has multiple
18 instances of TMU and some registers are shared across all TMU's like
19 interrupt related then 2 set of register has to supplied. First set
20 belongs to register set of TMU instance and second set belongs to
21 registers shared with the TMU instance.
23 NOTE: On Exynos5420, the TRIMINFO register is misplaced for TMU
25 Use "samsung,exynos5420-tmu-ext-triminfo" in cases, there is a misplaced
26 register, also provide clock to access that base.
28 TRIMINFO at 0x1006c000 contains data for TMU channel 3
29 TRIMINFO at 0x100a0000 contains data for TMU channel 4
30 TRIMINFO at 0x10068000 contains data for TMU channel 2
32 - interrupts : Should contain interrupt for thermal system
33 - clocks : The main clocks for TMU device
34 -- 1. operational clock for TMU channel
35 -- 2. optional clock to access the shared registers of TMU channel
36 -- 3. optional special clock for functional operation
37 - clock-names : Thermal system clock name
38 -- "tmu_apbif" operational clock for current TMU channel
39 -- "tmu_triminfo_apbif" clock to access the shared triminfo register
40 for current TMU channel
41 -- "tmu_sclk" clock for functional operation of the current TMU
43 - vtmu-supply: This entry is optional and provides the regulator node supplying
44 voltage to TMU. If needed this entry can be placed inside
45 board/platform specific dts file.
46 Following properties are mandatory (depending on SoC):
47 - samsung,tmu_gain: Gain value for internal TMU operation.
48 - samsung,tmu_reference_voltage: Value of TMU IP block's reference voltage
49 - samsung,tmu_noise_cancel_mode: Mode for noise cancellation
50 - samsung,tmu_efuse_value: Default level of temperature - it is needed when
51 in factory fusing produced wrong value
52 - samsung,tmu_min_efuse_value: Minimum temperature fused value
53 - samsung,tmu_max_efuse_value: Maximum temperature fused value
54 - samsung,tmu_first_point_trim: First point trimming value
55 - samsung,tmu_second_point_trim: Second point trimming value
56 - samsung,tmu_default_temp_offset: Default temperature offset
57 - samsung,tmu_cal_type: Callibration type
62 compatible = "samsung,exynos4412-tmu";
63 interrupt-parent = <&combiner>;
64 reg = <0x100C0000 0x100>;
66 clocks = <&clock 383>;
67 clock-names = "tmu_apbif";
69 vtmu-supply = <&tmu_regulator_node>;
70 #include "exynos4412-tmu-sensor-conf.dtsi"
75 tmuctrl_0: tmuctrl@160118 {
76 compatible = "samsung,exynos5440-tmu";
77 reg = <0x160118 0x230>, <0x160368 0x10>;
78 interrupts = <0 58 0>;
80 clock-names = "tmu_apbif";
81 #include "exynos5440-tmu-sensor-conf.dtsi"
84 Example 3): (In case of Exynos5420 "with misplaced TRIMINFO register")
85 tmu_cpu2: tmu@10068000 {
86 compatible = "samsung,exynos5420-tmu-ext-triminfo";
87 reg = <0x10068000 0x100>, <0x1006c000 0x4>;
88 interrupts = <0 184 0>;
89 clocks = <&clock 318>, <&clock 318>;
90 clock-names = "tmu_apbif", "tmu_triminfo_apbif";
91 #include "exynos4412-tmu-sensor-conf.dtsi"
94 tmu_cpu3: tmu@1006c000 {
95 compatible = "samsung,exynos5420-tmu-ext-triminfo";
96 reg = <0x1006c000 0x100>, <0x100a0000 0x4>;
97 interrupts = <0 185 0>;
98 clocks = <&clock 318>, <&clock 319>;
99 clock-names = "tmu_apbif", "tmu_triminfo_apbif";
100 #include "exynos4412-tmu-sensor-conf.dtsi"
103 tmu_gpu: tmu@100a0000 {
104 compatible = "samsung,exynos5420-tmu-ext-triminfo";
105 reg = <0x100a0000 0x100>, <0x10068000 0x4>;
106 interrupts = <0 215 0>;
107 clocks = <&clock 319>, <&clock 318>;
108 clock-names = "tmu_apbif", "tmu_triminfo_apbif";
109 #include "exynos4412-tmu-sensor-conf.dtsi"
112 Note: For multi-instance tmu each instance should have an alias correctly
113 numbered in "aliases" node.
118 tmuctrl0 = &tmuctrl_0;
119 tmuctrl1 = &tmuctrl_1;
120 tmuctrl2 = &tmuctrl_2;