1 AM33xx MUSB 1 AM33xx MUSB
2 ~~~~~~~~~~~~~~~ 2 ~~~~~~~~~~~~~~~
3 - compatible: ti,am33xx-usb 3 - compatible: ti,am33xx-usb
4 - reg: offset and length of the usbss register 4 - reg: offset and length of the usbss register sets
5 - ti,hwmods : must be "usb_otg_hs" 5 - ti,hwmods : must be "usb_otg_hs"
6 6
7 The glue layer contains multiple child nodes. 7 The glue layer contains multiple child nodes. It is required to have
8 at least a control module node, USB node and a 8 at least a control module node, USB node and a PHY node. The second USB
9 node and its PHY node are optional. The DMA no 9 node and its PHY node are optional. The DMA node is also optional.
10 10
11 Reset module 11 Reset module
12 ~~~~~~~~~~~~ 12 ~~~~~~~~~~~~
13 - compatible: ti,am335x-usb-ctrl-module 13 - compatible: ti,am335x-usb-ctrl-module
14 - reg: offset and length of the "USB control r 14 - reg: offset and length of the "USB control registers" in the "Control
15 Module" block. A second offset and length fo 15 Module" block. A second offset and length for the USB wake up control
16 in the same memory block. 16 in the same memory block.
17 - reg-names: "phy_ctrl" for the "USB control r 17 - reg-names: "phy_ctrl" for the "USB control registers" and "wakeup" for
18 the USB wake up control register. 18 the USB wake up control register.
19 19
20 USB PHY 20 USB PHY
21 ~~~~~~~ 21 ~~~~~~~
22 compatible: ti,am335x-usb-phy 22 compatible: ti,am335x-usb-phy
23 reg: offset and length of the "USB PHY" regist 23 reg: offset and length of the "USB PHY" register space
24 ti,ctrl_mod: reference to the "reset module" n 24 ti,ctrl_mod: reference to the "reset module" node
25 reg-names: phy 25 reg-names: phy
26 The PHY should have a "phy" alias numbered pro 26 The PHY should have a "phy" alias numbered properly in the alias
27 node. 27 node.
28 28
29 USB 29 USB
30 ~~~ 30 ~~~
31 - compatible: ti,musb-am33xx 31 - compatible: ti,musb-am33xx
32 - reg: offset and length of "USB Controller Re 32 - reg: offset and length of "USB Controller Registers", and offset and
33 length of "USB Core" register space. 33 length of "USB Core" register space.
34 - reg-names: control for the ""USB Controller 34 - reg-names: control for the ""USB Controller Registers" and "mc" for
35 "USB Core" register space 35 "USB Core" register space
36 - interrupts: USB interrupt number 36 - interrupts: USB interrupt number
37 - interrupt-names: mc 37 - interrupt-names: mc
38 - dr_mode: Should be one of "host", "periphera 38 - dr_mode: Should be one of "host", "peripheral" or "otg".
39 - mentor,multipoint: Should be "1" indicating 39 - mentor,multipoint: Should be "1" indicating the musb controller supports
40 multipoint. This is a MUSB configuration-spe 40 multipoint. This is a MUSB configuration-specific setting.
41 - mentor,num-eps: Specifies the number of endp 41 - mentor,num-eps: Specifies the number of endpoints. This is also a
42 MUSB configuration-specific setting. Should 42 MUSB configuration-specific setting. Should be set to "16"
43 - mentor,ram-bits: Specifies the ram address s 43 - mentor,ram-bits: Specifies the ram address size. Should be set to "12"
44 - mentor,power: Should be "500". This signifie 44 - mentor,power: Should be "500". This signifies the controller can supply up to
45 500mA when operating in host mode. 45 500mA when operating in host mode.
46 - phys: reference to the USB phy 46 - phys: reference to the USB phy
47 - dmas: specifies the dma channels 47 - dmas: specifies the dma channels
48 - dma-names: specifies the names of the channe 48 - dma-names: specifies the names of the channels. Use "rxN" for receive
49 and "txN" for transmit endpoints. N specifie 49 and "txN" for transmit endpoints. N specifies the endpoint number.
50 50
51 The controller should have an "usb" alias numb 51 The controller should have an "usb" alias numbered properly in the alias
52 node. 52 node.
53 53
54 DMA 54 DMA
55 ~~~ 55 ~~~
56 - compatible: ti,am3359-cppi41 56 - compatible: ti,am3359-cppi41
57 - reg: offset and length of the following regi 57 - reg: offset and length of the following register spaces: USBSS, USB
58 CPPI DMA Controller, USB CPPI DMA Scheduler, 58 CPPI DMA Controller, USB CPPI DMA Scheduler, USB Queue Manager
59 - reg-names: glue, controller, scheduler, queu 59 - reg-names: glue, controller, scheduler, queuemgr
60 - #dma-cells: should be set to 2. The first nu 60 - #dma-cells: should be set to 2. The first number represents the
61 endpoint number (0 … 14 for endpoints 1 †61 endpoint number (0 … 14 for endpoints 1 … 15 on instance 0 and 15 … 29
62 for endpoints 1 … 15 on instance 1). The s 62 for endpoints 1 … 15 on instance 1). The second number is 0 for RX and
63 1 for TX transfers. 63 1 for TX transfers.
64 - dma-channels: should be set to 30 representi 64 - dma-channels: should be set to 30 representing the 15 endpoints for
65 each USB instance. 65 each USB instance.
66 - #dma-channels: deprecated 66 - #dma-channels: deprecated
67 67
68 Example: 68 Example:
69 ~~~~~~~~ 69 ~~~~~~~~
70 The following example contains all the nodes a 70 The following example contains all the nodes as used on am335x-evm:
71 71
72 aliases { 72 aliases {
73 usb0 = &usb0; 73 usb0 = &usb0;
74 usb1 = &usb1; 74 usb1 = &usb1;
75 phy0 = &usb0_phy; 75 phy0 = &usb0_phy;
76 phy1 = &usb1_phy; 76 phy1 = &usb1_phy;
77 }; 77 };
78 78
79 usb: usb@47400000 { 79 usb: usb@47400000 {
80 compatible = "ti,am33xx-usb"; 80 compatible = "ti,am33xx-usb";
81 reg = <0x47400000 0x1000>; 81 reg = <0x47400000 0x1000>;
82 ranges; 82 ranges;
83 #address-cells = <1>; 83 #address-cells = <1>;
84 #size-cells = <1>; 84 #size-cells = <1>;
85 ti,hwmods = "usb_otg_hs"; 85 ti,hwmods = "usb_otg_hs";
86 86
87 ctrl_mod: control@44e10000 { 87 ctrl_mod: control@44e10000 {
88 compatible = "ti,am335x-usb-ct 88 compatible = "ti,am335x-usb-ctrl-module";
89 reg = <0x44e10620 0x10 89 reg = <0x44e10620 0x10
90 0x44e10648 0x4>; 90 0x44e10648 0x4>;
91 reg-names = "phy_ctrl", "wakeu 91 reg-names = "phy_ctrl", "wakeup";
92 }; 92 };
93 93
94 usb0_phy: usb-phy@47401300 { 94 usb0_phy: usb-phy@47401300 {
95 compatible = "ti,am335x-usb-ph 95 compatible = "ti,am335x-usb-phy";
96 reg = <0x47401300 0x100>; 96 reg = <0x47401300 0x100>;
97 reg-names = "phy"; 97 reg-names = "phy";
98 ti,ctrl_mod = <&ctrl_mod>; 98 ti,ctrl_mod = <&ctrl_mod>;
99 #phy-cells = <0>; 99 #phy-cells = <0>;
100 }; 100 };
101 101
102 usb0: usb@47401000 { 102 usb0: usb@47401000 {
103 compatible = "ti,musb-am33xx"; 103 compatible = "ti,musb-am33xx";
104 reg = <0x47401400 0x400 104 reg = <0x47401400 0x400
105 0x47401000 0x200>; 105 0x47401000 0x200>;
106 reg-names = "mc", "control"; 106 reg-names = "mc", "control";
107 107
108 interrupts = <18>; 108 interrupts = <18>;
109 interrupt-names = "mc"; 109 interrupt-names = "mc";
110 dr_mode = "otg" 110 dr_mode = "otg"
111 mentor,multipoint = <1>; 111 mentor,multipoint = <1>;
112 mentor,num-eps = <16>; 112 mentor,num-eps = <16>;
113 mentor,ram-bits = <12>; 113 mentor,ram-bits = <12>;
114 mentor,power = <500>; 114 mentor,power = <500>;
115 phys = <&usb0_phy>; 115 phys = <&usb0_phy>;
116 116
117 dmas = <&cppi41dma 0 0 &cppi4 117 dmas = <&cppi41dma 0 0 &cppi41dma 1 0
118 &cppi41dma 2 0 &cppi4 118 &cppi41dma 2 0 &cppi41dma 3 0
119 &cppi41dma 4 0 &cppi4 119 &cppi41dma 4 0 &cppi41dma 5 0
120 &cppi41dma 6 0 &cppi4 120 &cppi41dma 6 0 &cppi41dma 7 0
121 &cppi41dma 8 0 &cppi4 121 &cppi41dma 8 0 &cppi41dma 9 0
122 &cppi41dma 10 0 &cppi4 122 &cppi41dma 10 0 &cppi41dma 11 0
123 &cppi41dma 12 0 &cppi4 123 &cppi41dma 12 0 &cppi41dma 13 0
124 &cppi41dma 14 0 &cppi4 124 &cppi41dma 14 0 &cppi41dma 0 1
125 &cppi41dma 1 1 &cppi4 125 &cppi41dma 1 1 &cppi41dma 2 1
126 &cppi41dma 3 1 &cppi4 126 &cppi41dma 3 1 &cppi41dma 4 1
127 &cppi41dma 5 1 &cppi4 127 &cppi41dma 5 1 &cppi41dma 6 1
128 &cppi41dma 7 1 &cppi4 128 &cppi41dma 7 1 &cppi41dma 8 1
129 &cppi41dma 9 1 &cppi4 129 &cppi41dma 9 1 &cppi41dma 10 1
130 &cppi41dma 11 1 &cppi4 130 &cppi41dma 11 1 &cppi41dma 12 1
131 &cppi41dma 13 1 &cppi4 131 &cppi41dma 13 1 &cppi41dma 14 1>;
132 dma-names = 132 dma-names =
133 "rx1", "rx2", "rx3", " 133 "rx1", "rx2", "rx3", "rx4", "rx5", "rx6", "rx7",
134 "rx8", "rx9", "rx10", 134 "rx8", "rx9", "rx10", "rx11", "rx12", "rx13",
135 "rx14", "rx15", 135 "rx14", "rx15",
136 "tx1", "tx2", "tx3", " 136 "tx1", "tx2", "tx3", "tx4", "tx5", "tx6", "tx7",
137 "tx8", "tx9", "tx10", 137 "tx8", "tx9", "tx10", "tx11", "tx12", "tx13",
138 "tx14", "tx15"; 138 "tx14", "tx15";
139 }; 139 };
140 140
141 usb1_phy: usb-phy@47401b00 { 141 usb1_phy: usb-phy@47401b00 {
142 compatible = "ti,am335x-usb-ph 142 compatible = "ti,am335x-usb-phy";
143 reg = <0x47401b00 0x100>; 143 reg = <0x47401b00 0x100>;
144 reg-names = "phy"; 144 reg-names = "phy";
145 ti,ctrl_mod = <&ctrl_mod>; 145 ti,ctrl_mod = <&ctrl_mod>;
146 #phy-cells = <0>; 146 #phy-cells = <0>;
147 }; 147 };
148 148
149 usb1: usb@47401800 { 149 usb1: usb@47401800 {
150 compatible = "ti,musb-am33xx"; 150 compatible = "ti,musb-am33xx";
151 reg = <0x47401c00 0x400 151 reg = <0x47401c00 0x400
152 0x47401800 0x200>; 152 0x47401800 0x200>;
153 reg-names = "mc", "control"; 153 reg-names = "mc", "control";
154 interrupts = <19>; 154 interrupts = <19>;
155 interrupt-names = "mc"; 155 interrupt-names = "mc";
156 dr_mode = "host" 156 dr_mode = "host"
157 mentor,multipoint = <1>; 157 mentor,multipoint = <1>;
158 mentor,num-eps = <16>; 158 mentor,num-eps = <16>;
159 mentor,ram-bits = <12>; 159 mentor,ram-bits = <12>;
160 mentor,power = <500>; 160 mentor,power = <500>;
161 phys = <&usb1_phy>; 161 phys = <&usb1_phy>;
162 162
163 dmas = <&cppi41dma 15 0 &cppi4 163 dmas = <&cppi41dma 15 0 &cppi41dma 16 0
164 &cppi41dma 17 0 &cppi4 164 &cppi41dma 17 0 &cppi41dma 18 0
165 &cppi41dma 19 0 &cppi4 165 &cppi41dma 19 0 &cppi41dma 20 0
166 &cppi41dma 21 0 &cppi4 166 &cppi41dma 21 0 &cppi41dma 22 0
167 &cppi41dma 23 0 &cppi4 167 &cppi41dma 23 0 &cppi41dma 24 0
168 &cppi41dma 25 0 &cppi4 168 &cppi41dma 25 0 &cppi41dma 26 0
169 &cppi41dma 27 0 &cppi4 169 &cppi41dma 27 0 &cppi41dma 28 0
170 &cppi41dma 29 0 &cppi4 170 &cppi41dma 29 0 &cppi41dma 15 1
171 &cppi41dma 16 1 &cppi4 171 &cppi41dma 16 1 &cppi41dma 17 1
172 &cppi41dma 18 1 &cppi4 172 &cppi41dma 18 1 &cppi41dma 19 1
173 &cppi41dma 20 1 &cppi4 173 &cppi41dma 20 1 &cppi41dma 21 1
174 &cppi41dma 22 1 &cppi4 174 &cppi41dma 22 1 &cppi41dma 23 1
175 &cppi41dma 24 1 &cppi4 175 &cppi41dma 24 1 &cppi41dma 25 1
176 &cppi41dma 26 1 &cppi4 176 &cppi41dma 26 1 &cppi41dma 27 1
177 &cppi41dma 28 1 &cppi4 177 &cppi41dma 28 1 &cppi41dma 29 1>;
178 dma-names = 178 dma-names =
179 "rx1", "rx2", "rx3", " 179 "rx1", "rx2", "rx3", "rx4", "rx5", "rx6", "rx7",
180 "rx8", "rx9", "rx10", 180 "rx8", "rx9", "rx10", "rx11", "rx12", "rx13",
181 "rx14", "rx15", 181 "rx14", "rx15",
182 "tx1", "tx2", "tx3", " 182 "tx1", "tx2", "tx3", "tx4", "tx5", "tx6", "tx7",
183 "tx8", "tx9", "tx10", 183 "tx8", "tx9", "tx10", "tx11", "tx12", "tx13",
184 "tx14", "tx15"; 184 "tx14", "tx15";
185 }; 185 };
186 186
187 cppi41dma: dma-controller@7402000 { 187 cppi41dma: dma-controller@7402000 {
188 compatible = "ti,am3359-cppi41 188 compatible = "ti,am3359-cppi41";
189 reg = <0x47400000 0x1000 189 reg = <0x47400000 0x1000
190 0x47402000 0x1000 190 0x47402000 0x1000
191 0x47403000 0x1000 191 0x47403000 0x1000
192 0x47404000 0x4000>; 192 0x47404000 0x4000>;
193 reg-names = "glue", "controlle 193 reg-names = "glue", "controller", "scheduler", "queuemgr";
194 interrupts = <17>; 194 interrupts = <17>;
195 interrupt-names = "glue"; 195 interrupt-names = "glue";
196 #dma-cells = <2>; 196 #dma-cells = <2>;
197 dma-channels = <30>; 197 dma-channels = <30>;
198 dma-requests = <256>; 198 dma-requests = <256>;
199 }; 199 };
200 }; 200 };
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