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a0b311ef SAS |
1 | AM33xx MUSB |
2 | ~~~~~~~~~~~~~~~ | |
3 | - compatible: ti,am33xx-usb | |
4 | - reg: offset and length of the usbss register sets | |
5 | - ti,hwmods : must be "usb_otg_hs" | |
6 | ||
58156258 | 7 | The glue layer contains multiple child nodes. It is required to have |
a0b311ef | 8 | at least a control module node, USB node and a PHY node. The second USB |
58156258 | 9 | node and its PHY node are optional. The DMA node is also optional. |
a0b311ef SAS |
10 | |
11 | Reset module | |
12 | ~~~~~~~~~~~~ | |
13 | - compatible: ti,am335x-usb-ctrl-module | |
14 | - reg: offset and length of the "USB control registers" in the "Control | |
15 | Module" block. A second offset and length for the USB wake up control | |
16 | in the same memory block. | |
17 | - reg-names: "phy_ctrl" for the "USB control registers" and "wakeup" for | |
18 | the USB wake up control register. | |
19 | ||
20 | USB PHY | |
21 | ~~~~~~~ | |
22 | compatible: ti,am335x-usb-phy | |
23 | reg: offset and length of the "USB PHY" register space | |
24 | ti,ctrl_mod: reference to the "reset module" node | |
25 | reg-names: phy | |
26 | The PHY should have a "phy" alias numbered properly in the alias | |
27 | node. | |
28 | ||
29 | USB | |
30 | ~~~ | |
31 | - compatible: ti,musb-am33xx | |
32 | - reg: offset and length of "USB Controller Registers", and offset and | |
33 | length of "USB Core" register space. | |
34 | - reg-names: control for the ""USB Controller Registers" and "mc" for | |
35 | "USB Core" register space | |
36 | - interrupts: USB interrupt number | |
37 | - interrupt-names: mc | |
38 | - dr_mode: Should be one of "host", "peripheral" or "otg". | |
39 | - mentor,multipoint: Should be "1" indicating the musb controller supports | |
40 | multipoint. This is a MUSB configuration-specific setting. | |
41 | - mentor,num-eps: Specifies the number of endpoints. This is also a | |
42 | MUSB configuration-specific setting. Should be set to "16" | |
43 | - mentor,ram-bits: Specifies the ram address size. Should be set to "12" | |
44 | - mentor,power: Should be "500". This signifies the controller can supply up to | |
45 | 500mA when operating in host mode. | |
46 | - phys: reference to the USB phy | |
47 | - dmas: specifies the dma channels | |
48 | - dma-names: specifies the names of the channels. Use "rxN" for receive | |
49 | and "txN" for transmit endpoints. N specifies the endpoint number. | |
50 | ||
51 | The controller should have an "usb" alias numbered properly in the alias | |
52 | node. | |
53 | ||
54 | DMA | |
55 | ~~~ | |
56 | - compatible: ti,am3359-cppi41 | |
57 | - reg: offset and length of the following register spaces: USBSS, USB | |
58 | CPPI DMA Controller, USB CPPI DMA Scheduler, USB Queue Manager | |
59 | - reg-names: glue, controller, scheduler, queuemgr | |
60 | - #dma-cells: should be set to 2. The first number represents the | |
61 | endpoint number (0 … 14 for endpoints 1 … 15 on instance 0 and 15 … 29 | |
62 | for endpoints 1 … 15 on instance 1). The second number is 0 for RX and | |
63 | 1 for TX transfers. | |
64 | - #dma-channels: should be set to 30 representing the 15 endpoints for | |
65 | each USB instance. | |
5a2bc4c6 AM |
66 | |
67 | Example: | |
a0b311ef SAS |
68 | ~~~~~~~~ |
69 | The following example contains all the nodes as used on am335x-evm: | |
70 | ||
71 | aliases { | |
72 | usb0 = &usb0; | |
73 | usb1 = &usb1; | |
74 | phy0 = &usb0_phy; | |
75 | phy1 = &usb1_phy; | |
76 | }; | |
5a2bc4c6 | 77 | |
a0b311ef SAS |
78 | usb: usb@47400000 { |
79 | compatible = "ti,am33xx-usb"; | |
80 | reg = <0x47400000 0x1000>; | |
81 | ranges; | |
82 | #address-cells = <1>; | |
83 | #size-cells = <1>; | |
5a2bc4c6 | 84 | ti,hwmods = "usb_otg_hs"; |
a0b311ef SAS |
85 | |
86 | ctrl_mod: control@44e10000 { | |
87 | compatible = "ti,am335x-usb-ctrl-module"; | |
88 | reg = <0x44e10620 0x10 | |
89 | 0x44e10648 0x4>; | |
90 | reg-names = "phy_ctrl", "wakeup"; | |
91 | }; | |
92 | ||
93 | usb0_phy: usb-phy@47401300 { | |
94 | compatible = "ti,am335x-usb-phy"; | |
95 | reg = <0x47401300 0x100>; | |
96 | reg-names = "phy"; | |
97 | ti,ctrl_mod = <&ctrl_mod>; | |
f0e11ff8 | 98 | #phy-cells = <0>; |
a0b311ef SAS |
99 | }; |
100 | ||
101 | usb0: usb@47401000 { | |
102 | compatible = "ti,musb-am33xx"; | |
103 | reg = <0x47401400 0x400 | |
104 | 0x47401000 0x200>; | |
105 | reg-names = "mc", "control"; | |
106 | ||
107 | interrupts = <18>; | |
108 | interrupt-names = "mc"; | |
109 | dr_mode = "otg" | |
110 | mentor,multipoint = <1>; | |
111 | mentor,num-eps = <16>; | |
112 | mentor,ram-bits = <12>; | |
113 | mentor,power = <500>; | |
114 | phys = <&usb0_phy>; | |
115 | ||
116 | dmas = <&cppi41dma 0 0 &cppi41dma 1 0 | |
117 | &cppi41dma 2 0 &cppi41dma 3 0 | |
118 | &cppi41dma 4 0 &cppi41dma 5 0 | |
119 | &cppi41dma 6 0 &cppi41dma 7 0 | |
120 | &cppi41dma 8 0 &cppi41dma 9 0 | |
121 | &cppi41dma 10 0 &cppi41dma 11 0 | |
122 | &cppi41dma 12 0 &cppi41dma 13 0 | |
123 | &cppi41dma 14 0 &cppi41dma 0 1 | |
124 | &cppi41dma 1 1 &cppi41dma 2 1 | |
125 | &cppi41dma 3 1 &cppi41dma 4 1 | |
126 | &cppi41dma 5 1 &cppi41dma 6 1 | |
127 | &cppi41dma 7 1 &cppi41dma 8 1 | |
128 | &cppi41dma 9 1 &cppi41dma 10 1 | |
129 | &cppi41dma 11 1 &cppi41dma 12 1 | |
130 | &cppi41dma 13 1 &cppi41dma 14 1>; | |
131 | dma-names = | |
132 | "rx1", "rx2", "rx3", "rx4", "rx5", "rx6", "rx7", | |
133 | "rx8", "rx9", "rx10", "rx11", "rx12", "rx13", | |
134 | "rx14", "rx15", | |
135 | "tx1", "tx2", "tx3", "tx4", "tx5", "tx6", "tx7", | |
136 | "tx8", "tx9", "tx10", "tx11", "tx12", "tx13", | |
137 | "tx14", "tx15"; | |
138 | }; | |
139 | ||
140 | usb1_phy: usb-phy@47401b00 { | |
141 | compatible = "ti,am335x-usb-phy"; | |
142 | reg = <0x47401b00 0x100>; | |
143 | reg-names = "phy"; | |
144 | ti,ctrl_mod = <&ctrl_mod>; | |
f0e11ff8 | 145 | #phy-cells = <0>; |
a0b311ef SAS |
146 | }; |
147 | ||
148 | usb1: usb@47401800 { | |
149 | compatible = "ti,musb-am33xx"; | |
150 | reg = <0x47401c00 0x400 | |
151 | 0x47401800 0x200>; | |
152 | reg-names = "mc", "control"; | |
153 | interrupts = <19>; | |
154 | interrupt-names = "mc"; | |
155 | dr_mode = "host" | |
156 | mentor,multipoint = <1>; | |
157 | mentor,num-eps = <16>; | |
158 | mentor,ram-bits = <12>; | |
159 | mentor,power = <500>; | |
160 | phys = <&usb1_phy>; | |
161 | ||
162 | dmas = <&cppi41dma 15 0 &cppi41dma 16 0 | |
163 | &cppi41dma 17 0 &cppi41dma 18 0 | |
164 | &cppi41dma 19 0 &cppi41dma 20 0 | |
165 | &cppi41dma 21 0 &cppi41dma 22 0 | |
166 | &cppi41dma 23 0 &cppi41dma 24 0 | |
167 | &cppi41dma 25 0 &cppi41dma 26 0 | |
168 | &cppi41dma 27 0 &cppi41dma 28 0 | |
169 | &cppi41dma 29 0 &cppi41dma 15 1 | |
170 | &cppi41dma 16 1 &cppi41dma 17 1 | |
171 | &cppi41dma 18 1 &cppi41dma 19 1 | |
172 | &cppi41dma 20 1 &cppi41dma 21 1 | |
173 | &cppi41dma 22 1 &cppi41dma 23 1 | |
174 | &cppi41dma 24 1 &cppi41dma 25 1 | |
175 | &cppi41dma 26 1 &cppi41dma 27 1 | |
176 | &cppi41dma 28 1 &cppi41dma 29 1>; | |
177 | dma-names = | |
178 | "rx1", "rx2", "rx3", "rx4", "rx5", "rx6", "rx7", | |
179 | "rx8", "rx9", "rx10", "rx11", "rx12", "rx13", | |
180 | "rx14", "rx15", | |
181 | "tx1", "tx2", "tx3", "tx4", "tx5", "tx6", "tx7", | |
182 | "tx8", "tx9", "tx10", "tx11", "tx12", "tx13", | |
183 | "tx14", "tx15"; | |
184 | }; | |
185 | ||
48c926cd | 186 | cppi41dma: dma-controller@7402000 { |
a0b311ef SAS |
187 | compatible = "ti,am3359-cppi41"; |
188 | reg = <0x47400000 0x1000 | |
189 | 0x47402000 0x1000 | |
190 | 0x47403000 0x1000 | |
191 | 0x47404000 0x4000>; | |
192 | reg-names = "glue", "controller", "scheduler", "queuemgr"; | |
193 | interrupts = <17>; | |
194 | interrupt-names = "glue"; | |
195 | #dma-cells = <2>; | |
196 | #dma-channels = <30>; | |
197 | #dma-requests = <256>; | |
198 | }; | |
5a2bc4c6 | 199 | }; |