1Qualcomm Hexagon Peripheral Image Loader
2
3This document defines the binding for a component that loads and boots firmware
4on the Qualcomm Hexagon core.
5
6- compatible:
7	Usage: required
8	Value type: <string>
9	Definition: must be one of:
10		    "qcom,q6v5-pil",
11		    "qcom,ipq8074-wcss-pil"
12		    "qcom,msm8916-mss-pil",
13		    "qcom,msm8974-mss-pil"
14		    "qcom,msm8996-mss-pil"
15		    "qcom,msm8998-mss-pil"
16		    "qcom,sc7180-mss-pil"
17		    "qcom,sdm845-mss-pil"
18
19- reg:
20	Usage: required
21	Value type: <prop-encoded-array>
22	Definition: must specify the base address and size of the qdsp6 and
23		    rmb register blocks
24
25- reg-names:
26	Usage: required
27	Value type: <stringlist>
28	Definition: must be "q6dsp" and "rmb"
29
30- interrupts-extended:
31	Usage: required
32	Value type: <prop-encoded-array>
33	Definition: reference to the interrupts that match interrupt-names
34
35- interrupt-names:
36	Usage: required
37	Value type: <stringlist>
38	Definition: The interrupts needed depends on the the compatible
39		    string:
40	qcom,q6v5-pil:
41	qcom,ipq8074-wcss-pil:
42	qcom,msm8916-mss-pil:
43	qcom,msm8974-mss-pil:
44		    must be "wdog", "fatal", "ready", "handover", "stop-ack"
45	qcom,msm8996-mss-pil:
46	qcom,msm8998-mss-pil:
47	qcom,sc7180-mss-pil:
48	qcom,sdm845-mss-pil:
49		    must be "wdog", "fatal", "ready", "handover", "stop-ack",
50		    "shutdown-ack"
51
52- firmware-name:
53	Usage: optional
54	Value type: <stringlist>
55	Definition: must list the relative firmware image paths for mba and
56		    modem. They are used for booting and authenticating the
57		    Hexagon core.
58
59- clocks:
60	Usage: required
61	Value type: <phandle>
62	Definition: reference to the clocks that match clock-names
63
64- clock-names:
65	Usage: required
66	Value type: <stringlist>
67	Definition: The clocks needed depend on the compatible string:
68	qcom,ipq8074-wcss-pil:
69		    no clock names required
70	qcom,q6v5-pil:
71	qcom,msm8916-mss-pil:
72	qcom,msm8974-mss-pil:
73		    must be "iface", "bus", "mem", "xo"
74	qcom,msm8996-mss-pil:
75		    must be "iface", "bus", "mem", "xo", "gpll0_mss",
76		    "snoc_axi", "mnoc_axi", "pnoc", "qdss"
77	qcom,msm8998-mss-pil:
78		    must be "iface", "bus", "mem", "xo", "gpll0_mss",
79		    "snoc_axi", "mnoc_axi", "qdss"
80	qcom,sc7180-mss-pil:
81		    must be "iface", "bus", "xo", "snoc_axi", "mnoc_axi",
82		    "nav"
83	qcom,sdm845-mss-pil:
84		    must be "iface", "bus", "mem", "xo", "gpll0_mss",
85		    "snoc_axi", "mnoc_axi", "prng"
86
87- resets:
88	Usage: required
89	Value type: <phandle>
90	Definition: reference to the reset-controller for the modem sub-system
91		    reference to the list of 3 reset-controllers for the
92		    wcss sub-system
93		    reference to the list of 2 reset-controllers for the modem
94		    sub-system on SC7180, SDM845 SoCs
95
96- reset-names:
97	Usage: required
98	Value type: <stringlist>
99	Definition: must be "mss_restart" for the modem sub-system
100		    must be "wcss_aon_reset", "wcss_reset", "wcss_q6_reset"
101		    for the wcss sub-system
102		    must be "mss_restart", "pdc_reset" for the modem
103		    sub-system on SC7180, SDM845 SoCs
104
105For devices where the mba and mpss sub-nodes are not specified, mba/mpss region
106should be referenced as follows:
107- memory-region:
108	Usage: required
109	Value type: <phandle>
110	Definition: reference to the reserved-memory for the mba region followed
111		    by the mpss region
112
113For the compatible strings below the following supplies are required:
114  "qcom,q6v5-pil"
115  "qcom,msm8916-mss-pil",
116- cx-supply:
117- mx-supply:
118- pll-supply:
119	Usage: required
120	Value type: <phandle>
121	Definition: reference to the regulators to be held on behalf of the
122		    booting of the Hexagon core
123
124For the compatible string below the following supplies are required:
125  "qcom,msm8974-mss-pil"
126- cx-supply:
127- mss-supply:
128- mx-supply:
129- pll-supply:
130	Usage: required
131	Value type: <phandle>
132	Definition: reference to the regulators to be held on behalf of the
133		    booting of the Hexagon core
134
135For the compatible string below the following supplies are required:
136  "qcom,msm8996-mss-pil"
137- pll-supply:
138	Usage: required
139	Value type: <phandle>
140	Definition: reference to the regulators to be held on behalf of the
141		    booting of the Hexagon core
142
143- power-domains:
144	Usage: required
145	Value type: <phandle>
146	Definition: reference to power-domains that match power-domain-names
147
148- power-domain-names:
149	Usage: required
150	Value type: <stringlist>
151	Definition: The power-domains needed depend on the compatible string:
152	qcom,q6v5-pil:
153	qcom,ipq8074-wcss-pil:
154	qcom,msm8916-mss-pil:
155	qcom,msm8974-mss-pil:
156		    no power-domain names required
157	qcom,msm8996-mss-pil:
158	qcom,msm8998-mss-pil:
159		    must be "cx", "mx"
160	qcom,sc7180-mss-pil:
161	qcom,sdm845-mss-pil:
162		    must be "cx", "mx", "mss", "load_state"
163
164- qcom,smem-states:
165	Usage: required
166	Value type: <phandle>
167	Definition: reference to the smem state for requesting the Hexagon to
168		    shut down
169
170- qcom,smem-state-names:
171	Usage: required
172	Value type: <stringlist>
173	Definition: must be "stop"
174
175- qcom,halt-regs:
176	Usage: required
177	Value type: <prop-encoded-array>
178	Definition: a phandle reference to a syscon representing TCSR followed
179		    by the three offsets within syscon for q6, modem and nc
180		    halt registers.
181
182For the compatible strings below the following phandle references are required:
183  "qcom,sc7180-mss-pil"
184- qcom,spare-regs:
185	Usage: required
186	Value type: <prop-encoded-array>
187	Definition: a phandle reference to a syscon representing TCSR followed
188		    by the offset within syscon for conn_box_spare0 register
189		    used by the modem sub-system running on SC7180 SoC.
190
191= SUBNODES:
192The Hexagon node must contain two subnodes, named "mba" and "mpss" representing
193the memory regions used by the Hexagon firmware. Each sub-node must contain:
194
195- memory-region:
196	Usage: required
197	Value type: <phandle>
198	Definition: reference to the reserved-memory for the region
199
200The Hexagon node may also have an subnode named either "smd-edge" or
201"glink-edge" that describes the communication edge, channels and devices
202related to the Hexagon.  See ../soc/qcom/qcom,smd.txt and
203../soc/qcom/qcom,glink.txt for details on how to describe these.
204
205= EXAMPLE
206The following example describes the resources needed to boot control the
207Hexagon, as it is found on MSM8974 boards.
208
209	modem-rproc@fc880000 {
210		compatible = "qcom,q6v5-pil";
211		reg = <0xfc880000 0x100>,
212		      <0xfc820000 0x020>;
213		reg-names = "qdsp6", "rmb";
214
215		interrupts-extended = <&intc 0 24 1>,
216				      <&modem_smp2p_in 0 0>,
217				      <&modem_smp2p_in 1 0>,
218				      <&modem_smp2p_in 2 0>,
219				      <&modem_smp2p_in 3 0>;
220		interrupt-names = "wdog",
221				  "fatal",
222				  "ready",
223				  "handover",
224				  "stop-ack";
225
226		clocks = <&gcc GCC_MSS_Q6_BIMC_AXI_CLK>,
227			 <&gcc GCC_MSS_CFG_AHB_CLK>,
228			 <&gcc GCC_BOOT_ROM_AHB_CLK>;
229		clock-names = "iface", "bus", "mem";
230
231		qcom,halt-regs = <&tcsr_mutex_block 0x1180 0x1200 0x1280>;
232
233		resets = <&gcc GCC_MSS_RESTART>;
234		reset-names = "mss_restart";
235
236		cx-supply = <&pm8841_s2>;
237		mss-supply = <&pm8841_s3>;
238		mx-supply = <&pm8841_s1>;
239		pll-supply = <&pm8941_l12>;
240
241		qcom,smem-states = <&modem_smp2p_out 0>;
242		qcom,smem-state-names = "stop";
243
244		mba {
245			memory-region = <&mba_region>;
246		};
247
248		mpss {
249			memory-region = <&mpss_region>;
250		};
251	};
252