summaryrefslogtreecommitdiff
path: root/Documentation/devicetree/bindings/remoteproc/qcom,q6v5.txt
blob: 92347fe6890e2b5d6f1e72f3b8ac43fd245d832a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
Qualcomm Hexagon Peripheral Image Loader

This document defines the binding for a component that loads and boots firmware
on the Qualcomm Hexagon core.

- compatible:
	Usage: required
	Value type: <string>
	Definition: must be one of:
		    "qcom,q6v5-pil",
		    "qcom,msm8916-mss-pil",
		    "qcom,msm8974-mss-pil"

- reg:
	Usage: required
	Value type: <prop-encoded-array>
	Definition: must specify the base address and size of the qdsp6 and
		    rmb register blocks

- reg-names:
	Usage: required
	Value type: <stringlist>
	Definition: must be "q6dsp" and "rmb"

- interrupts-extended:
	Usage: required
	Value type: <prop-encoded-array>
	Definition: must list the watchdog, fatal IRQs ready, handover and
		    stop-ack IRQs

- interrupt-names:
	Usage: required
	Value type: <stringlist>
	Definition: must be "wdog", "fatal", "ready", "handover", "stop-ack"

- clocks:
	Usage: required
	Value type: <phandle>
	Definition: reference to the iface, bus and mem clocks to be held on
		    behalf of the booting of the Hexagon core

- clock-names:
	Usage: required
	Value type: <stringlist>
	Definition: must be "iface", "bus", "mem"

- resets:
	Usage: required
	Value type: <phandle>
	Definition: reference to the reset-controller for the modem sub-system

- reset-names:
	Usage: required
	Value type: <stringlist>
	Definition: must be "mss_restart"

- cx-supply:
- mss-supply:
- mx-supply:
- pll-supply:
	Usage: required
	Value type: <phandle>
	Definition: reference to the regulators to be held on behalf of the
		    booting of the Hexagon core

- qcom,smem-states:
	Usage: required
	Value type: <phandle>
	Definition: reference to the smem state for requesting the Hexagon to
		    shut down

- qcom,smem-state-names:
	Usage: required
	Value type: <stringlist>
	Definition: must be "stop"

- qcom,halt-regs:
	Usage: required
	Value type: <prop-encoded-array>
	Definition: a phandle reference to a syscon representing TCSR followed
		    by the three offsets within syscon for q6, modem and nc
		    halt registers.

= SUBNODES:
The Hexagon node must contain two subnodes, named "mba" and "mpss" representing
the memory regions used by the Hexagon firmware. Each sub-node must contain:

- memory-region:
	Usage: required
	Value type: <phandle>
	Definition: reference to the reserved-memory for the region

= EXAMPLE
The following example describes the resources needed to boot control the
Hexagon, as it is found on MSM8974 boards.

	modem-rproc@fc880000 {
		compatible = "qcom,q6v5-pil";
		reg = <0xfc880000 0x100>,
		      <0xfc820000 0x020>;
		reg-names = "qdsp6", "rmb";

		interrupts-extended = <&intc 0 24 1>,
				      <&modem_smp2p_in 0 0>,
				      <&modem_smp2p_in 1 0>,
				      <&modem_smp2p_in 2 0>,
				      <&modem_smp2p_in 3 0>;
		interrupt-names = "wdog",
				  "fatal",
				  "ready",
				  "handover",
				  "stop-ack";

		clocks = <&gcc GCC_MSS_Q6_BIMC_AXI_CLK>,
			 <&gcc GCC_MSS_CFG_AHB_CLK>,
			 <&gcc GCC_BOOT_ROM_AHB_CLK>;
		clock-names = "iface", "bus", "mem";

		qcom,halt-regs = <&tcsr_mutex_block 0x1180 0x1200 0x1280>;

		resets = <&gcc GCC_MSS_RESTART>;
		reset-names = "mss_restart";

		cx-supply = <&pm8841_s2>;
		mss-supply = <&pm8841_s3>;
		mx-supply = <&pm8841_s1>;
		pll-supply = <&pm8941_l12>;

		qcom,smem-states = <&modem_smp2p_out 0>;
		qcom,smem-state-names = "stop";

		mba {
			memory-region = <&mba_region>;
		};

		mpss {
			memory-region = <&mpss_region>;
		};
	};