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,exynos5433-tmu"
15 "samsung,exynos5440-tmu"
17 - interrupt-parent : The phandle for the interrupt controller
18 - reg : Address range of the thermal registers. For soc's which has multiple
19 instances of TMU and some registers are shared across all TMU's like
20 interrupt related then 2 set of register has to supplied. First set
21 belongs to register set of TMU instance and second set belongs to
22 registers shared with the TMU instance.
24 NOTE: On Exynos5420, the TRIMINFO register is misplaced for TMU
26 Use "samsung,exynos5420-tmu-ext-triminfo" in cases, there is a misplaced
27 register, also provide clock to access that base.
29 TRIMINFO at 0x1006c000 contains data for TMU channel 3
30 TRIMINFO at 0x100a0000 contains data for TMU channel 4
31 TRIMINFO at 0x10068000 contains data for TMU channel 2
33 - interrupts : Should contain interrupt for thermal system
34 - clocks : The main clocks for TMU device
35 -- 1. operational clock for TMU channel
36 -- 2. optional clock to access the shared registers of TMU channel
37 -- 3. optional special clock for functional operation
38 - clock-names : Thermal system clock name
39 -- "tmu_apbif" operational clock for current TMU channel
40 -- "tmu_triminfo_apbif" clock to access the shared triminfo register
41 for current TMU channel
42 -- "tmu_sclk" clock for functional operation of the current TMU
45 The Exynos TMU supports generating interrupts when reaching given
46 temperature thresholds. Number of supported thermal trip points depends
47 on the SoC (only first trip points defined in DT will be configured):
49 - samsung,exynos5433-tmu: 8
50 - samsung,exynos7-tmu: 8
52 ** Optional properties:
54 - vtmu-supply: This entry is optional and provides the regulator node supplying
55 voltage to TMU. If needed this entry can be placed inside
56 board/platform specific dts file.
61 compatible = "samsung,exynos4412-tmu";
62 interrupt-parent = <&combiner>;
63 reg = <0x100C0000 0x100>;
65 clocks = <&clock 383>;
66 clock-names = "tmu_apbif";
67 vtmu-supply = <&tmu_regulator_node>;
68 #thermal-sensor-cells = <0>;
73 tmuctrl_0: tmuctrl@160118 {
74 compatible = "samsung,exynos5440-tmu";
75 reg = <0x160118 0x230>, <0x160368 0x10>;
76 interrupts = <0 58 0>;
78 clock-names = "tmu_apbif";
79 #thermal-sensor-cells = <0>;
82 Example 3): (In case of Exynos5420 "with misplaced TRIMINFO register")
83 tmu_cpu2: tmu@10068000 {
84 compatible = "samsung,exynos5420-tmu-ext-triminfo";
85 reg = <0x10068000 0x100>, <0x1006c000 0x4>;
86 interrupts = <0 184 0>;
87 clocks = <&clock 318>, <&clock 318>;
88 clock-names = "tmu_apbif", "tmu_triminfo_apbif";
89 #thermal-sensor-cells = <0>;
92 tmu_cpu3: tmu@1006c000 {
93 compatible = "samsung,exynos5420-tmu-ext-triminfo";
94 reg = <0x1006c000 0x100>, <0x100a0000 0x4>;
95 interrupts = <0 185 0>;
96 clocks = <&clock 318>, <&clock 319>;
97 clock-names = "tmu_apbif", "tmu_triminfo_apbif";
98 #thermal-sensor-cells = <0>;
101 tmu_gpu: tmu@100a0000 {
102 compatible = "samsung,exynos5420-tmu-ext-triminfo";
103 reg = <0x100a0000 0x100>, <0x10068000 0x4>;
104 interrupts = <0 215 0>;
105 clocks = <&clock 319>, <&clock 318>;
106 clock-names = "tmu_apbif", "tmu_triminfo_apbif";
107 #thermal-sensor-cells = <0>;
110 Note: For multi-instance tmu each instance should have an alias correctly
111 numbered in "aliases" node.
116 tmuctrl0 = &tmuctrl_0;
117 tmuctrl1 = &tmuctrl_1;
118 tmuctrl2 = &tmuctrl_2;