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1 | /* |
2 | * linux/arch/arm/mach-omap2/usb-ehci.c |
3 | * |
4 | * This file will contain the board specific details for the |
5 | * Synopsys EHCI host controller on OMAP3430 |
6 | * |
7 | * Copyright (C) 2007 Texas Instruments |
8 | * Author: Vikram Pandita <vikram.pandita@ti.com> |
9 | * |
10 | * Generalization by: |
11 | * Felipe Balbi <felipe.balbi@nokia.com> |
12 | * |
13 | * This program is free software; you can redistribute it and/or modify |
14 | * it under the terms of the GNU General Public License version 2 as |
15 | * published by the Free Software Foundation. |
16 | */ |
17 | |
18 | #include <linux/types.h> |
19 | #include <linux/errno.h> |
20 | #include <linux/delay.h> |
21 | #include <linux/platform_device.h> |
22 | #include <linux/clk.h> |
23 | #include <linux/dma-mapping.h> |
24 | |
25 | #include <asm/io.h> |
26 | |
27 | #include <mach/hardware.h> |
28 | #include <mach/irqs.h> |
29 | #include <plat/usb.h> |
30 | |
31 | #include "mux.h" |
32 | |
33 | #if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE) |
34 | |
35 | static struct resource ehci_resources[] = { |
36 | { |
37 | .start = OMAP34XX_EHCI_BASE, |
38 | .end = OMAP34XX_EHCI_BASE + SZ_1K - 1, |
39 | .flags = IORESOURCE_MEM, |
40 | }, |
41 | { |
42 | .start = OMAP34XX_UHH_CONFIG_BASE, |
43 | .end = OMAP34XX_UHH_CONFIG_BASE + SZ_1K - 1, |
44 | .flags = IORESOURCE_MEM, |
45 | }, |
46 | { |
47 | .start = OMAP34XX_USBTLL_BASE, |
48 | .end = OMAP34XX_USBTLL_BASE + SZ_4K - 1, |
49 | .flags = IORESOURCE_MEM, |
50 | }, |
51 | { /* general IRQ */ |
52 | .start = INT_34XX_EHCI_IRQ, |
53 | .flags = IORESOURCE_IRQ, |
54 | } |
55 | }; |
56 | |
57 | static u64 ehci_dmamask = ~(u32)0; |
58 | static struct platform_device ehci_device = { |
59 | .name = "ehci-omap", |
60 | .id = 0, |
61 | .dev = { |
62 | .dma_mask = &ehci_dmamask, |
63 | .coherent_dma_mask = 0xffffffff, |
64 | .platform_data = NULL, |
65 | }, |
66 | .num_resources = ARRAY_SIZE(ehci_resources), |
67 | .resource = ehci_resources, |
68 | }; |
69 | |
70 | /* MUX settings for EHCI pins */ |
71 | /* |
72 | * setup_ehci_io_mux - initialize IO pad mux for USBHOST |
73 | */ |
74 | static void setup_ehci_io_mux(const enum ehci_hcd_omap_mode *port_mode) |
75 | { |
76 | switch (port_mode[0]) { |
77 | case EHCI_HCD_OMAP_MODE_PHY: |
78 | omap_mux_init_signal("hsusb1_stp", OMAP_PIN_OUTPUT); |
79 | omap_mux_init_signal("hsusb1_clk", OMAP_PIN_OUTPUT); |
80 | omap_mux_init_signal("hsusb1_dir", OMAP_PIN_INPUT_PULLDOWN); |
81 | omap_mux_init_signal("hsusb1_nxt", OMAP_PIN_INPUT_PULLDOWN); |
82 | omap_mux_init_signal("hsusb1_data0", OMAP_PIN_INPUT_PULLDOWN); |
83 | omap_mux_init_signal("hsusb1_data1", OMAP_PIN_INPUT_PULLDOWN); |
84 | omap_mux_init_signal("hsusb1_data2", OMAP_PIN_INPUT_PULLDOWN); |
85 | omap_mux_init_signal("hsusb1_data3", OMAP_PIN_INPUT_PULLDOWN); |
86 | omap_mux_init_signal("hsusb1_data4", OMAP_PIN_INPUT_PULLDOWN); |
87 | omap_mux_init_signal("hsusb1_data5", OMAP_PIN_INPUT_PULLDOWN); |
88 | omap_mux_init_signal("hsusb1_data6", OMAP_PIN_INPUT_PULLDOWN); |
89 | omap_mux_init_signal("hsusb1_data7", OMAP_PIN_INPUT_PULLDOWN); |
90 | break; |
91 | case EHCI_HCD_OMAP_MODE_TLL: |
92 | omap_mux_init_signal("hsusb1_tll_stp", |
93 | OMAP_PIN_INPUT_PULLUP); |
94 | omap_mux_init_signal("hsusb1_tll_clk", |
95 | OMAP_PIN_INPUT_PULLDOWN); |
96 | omap_mux_init_signal("hsusb1_tll_dir", |
97 | OMAP_PIN_INPUT_PULLDOWN); |
98 | omap_mux_init_signal("hsusb1_tll_nxt", |
99 | OMAP_PIN_INPUT_PULLDOWN); |
100 | omap_mux_init_signal("hsusb1_tll_data0", |
101 | OMAP_PIN_INPUT_PULLDOWN); |
102 | omap_mux_init_signal("hsusb1_tll_data1", |
103 | OMAP_PIN_INPUT_PULLDOWN); |
104 | omap_mux_init_signal("hsusb1_tll_data2", |
105 | OMAP_PIN_INPUT_PULLDOWN); |
106 | omap_mux_init_signal("hsusb1_tll_data3", |
107 | OMAP_PIN_INPUT_PULLDOWN); |
108 | omap_mux_init_signal("hsusb1_tll_data4", |
109 | OMAP_PIN_INPUT_PULLDOWN); |
110 | omap_mux_init_signal("hsusb1_tll_data5", |
111 | OMAP_PIN_INPUT_PULLDOWN); |
112 | omap_mux_init_signal("hsusb1_tll_data6", |
113 | OMAP_PIN_INPUT_PULLDOWN); |
114 | omap_mux_init_signal("hsusb1_tll_data7", |
115 | OMAP_PIN_INPUT_PULLDOWN); |
116 | break; |
117 | case EHCI_HCD_OMAP_MODE_UNKNOWN: |
118 | /* FALLTHROUGH */ |
119 | default: |
120 | break; |
121 | } |
122 | |
123 | switch (port_mode[1]) { |
124 | case EHCI_HCD_OMAP_MODE_PHY: |
125 | omap_mux_init_signal("hsusb2_stp", OMAP_PIN_OUTPUT); |
126 | omap_mux_init_signal("hsusb2_clk", OMAP_PIN_OUTPUT); |
127 | omap_mux_init_signal("hsusb2_dir", OMAP_PIN_INPUT_PULLDOWN); |
128 | omap_mux_init_signal("hsusb2_nxt", OMAP_PIN_INPUT_PULLDOWN); |
129 | omap_mux_init_signal("hsusb2_data0", |
130 | OMAP_PIN_INPUT_PULLDOWN); |
131 | omap_mux_init_signal("hsusb2_data1", |
132 | OMAP_PIN_INPUT_PULLDOWN); |
133 | omap_mux_init_signal("hsusb2_data2", |
134 | OMAP_PIN_INPUT_PULLDOWN); |
135 | omap_mux_init_signal("hsusb2_data3", |
136 | OMAP_PIN_INPUT_PULLDOWN); |
137 | omap_mux_init_signal("hsusb2_data4", |
138 | OMAP_PIN_INPUT_PULLDOWN); |
139 | omap_mux_init_signal("hsusb2_data5", |
140 | OMAP_PIN_INPUT_PULLDOWN); |
141 | omap_mux_init_signal("hsusb2_data6", |
142 | OMAP_PIN_INPUT_PULLDOWN); |
143 | omap_mux_init_signal("hsusb2_data7", |
144 | OMAP_PIN_INPUT_PULLDOWN); |
145 | break; |
146 | case EHCI_HCD_OMAP_MODE_TLL: |
147 | omap_mux_init_signal("hsusb2_tll_stp", |
148 | OMAP_PIN_INPUT_PULLUP); |
149 | omap_mux_init_signal("hsusb2_tll_clk", |
150 | OMAP_PIN_INPUT_PULLDOWN); |
151 | omap_mux_init_signal("hsusb2_tll_dir", |
152 | OMAP_PIN_INPUT_PULLDOWN); |
153 | omap_mux_init_signal("hsusb2_tll_nxt", |
154 | OMAP_PIN_INPUT_PULLDOWN); |
155 | omap_mux_init_signal("hsusb2_tll_data0", |
156 | OMAP_PIN_INPUT_PULLDOWN); |
157 | omap_mux_init_signal("hsusb2_tll_data1", |
158 | OMAP_PIN_INPUT_PULLDOWN); |
159 | omap_mux_init_signal("hsusb2_tll_data2", |
160 | OMAP_PIN_INPUT_PULLDOWN); |
161 | omap_mux_init_signal("hsusb2_tll_data3", |
162 | OMAP_PIN_INPUT_PULLDOWN); |
163 | omap_mux_init_signal("hsusb2_tll_data4", |
164 | OMAP_PIN_INPUT_PULLDOWN); |
165 | omap_mux_init_signal("hsusb2_tll_data5", |
166 | OMAP_PIN_INPUT_PULLDOWN); |
167 | omap_mux_init_signal("hsusb2_tll_data6", |
168 | OMAP_PIN_INPUT_PULLDOWN); |
169 | omap_mux_init_signal("hsusb2_tll_data7", |
170 | OMAP_PIN_INPUT_PULLDOWN); |
171 | break; |
172 | case EHCI_HCD_OMAP_MODE_UNKNOWN: |
173 | /* FALLTHROUGH */ |
174 | default: |
175 | break; |
176 | } |
177 | |
178 | switch (port_mode[2]) { |
179 | case EHCI_HCD_OMAP_MODE_PHY: |
180 | printk(KERN_WARNING "Port3 can't be used in PHY mode\n"); |
181 | break; |
182 | case EHCI_HCD_OMAP_MODE_TLL: |
183 | omap_mux_init_signal("hsusb3_tll_stp", |
184 | OMAP_PIN_INPUT_PULLUP); |
185 | omap_mux_init_signal("hsusb3_tll_clk", |
186 | OMAP_PIN_INPUT_PULLDOWN); |
187 | omap_mux_init_signal("hsusb3_tll_dir", |
188 | OMAP_PIN_INPUT_PULLDOWN); |
189 | omap_mux_init_signal("hsusb3_tll_nxt", |
190 | OMAP_PIN_INPUT_PULLDOWN); |
191 | omap_mux_init_signal("hsusb3_tll_data0", |
192 | OMAP_PIN_INPUT_PULLDOWN); |
193 | omap_mux_init_signal("hsusb3_tll_data1", |
194 | OMAP_PIN_INPUT_PULLDOWN); |
195 | omap_mux_init_signal("hsusb3_tll_data2", |
196 | OMAP_PIN_INPUT_PULLDOWN); |
197 | omap_mux_init_signal("hsusb3_tll_data3", |
198 | OMAP_PIN_INPUT_PULLDOWN); |
199 | omap_mux_init_signal("hsusb3_tll_data4", |
200 | OMAP_PIN_INPUT_PULLDOWN); |
201 | omap_mux_init_signal("hsusb3_tll_data5", |
202 | OMAP_PIN_INPUT_PULLDOWN); |
203 | omap_mux_init_signal("hsusb3_tll_data6", |
204 | OMAP_PIN_INPUT_PULLDOWN); |
205 | omap_mux_init_signal("hsusb3_tll_data7", |
206 | OMAP_PIN_INPUT_PULLDOWN); |
207 | break; |
208 | case EHCI_HCD_OMAP_MODE_UNKNOWN: |
209 | /* FALLTHROUGH */ |
210 | default: |
211 | break; |
212 | } |
213 | |
214 | return; |
215 | } |
216 | |
217 | void __init usb_ehci_init(const struct ehci_hcd_omap_platform_data *pdata) |
218 | { |
219 | platform_device_add_data(&ehci_device, pdata, sizeof(*pdata)); |
220 | |
221 | /* Setup Pin IO MUX for EHCI */ |
222 | if (cpu_is_omap34xx()) |
223 | setup_ehci_io_mux(pdata->port_mode); |
224 | |
225 | if (platform_device_register(&ehci_device) < 0) { |
226 | printk(KERN_ERR "Unable to register HS-USB (EHCI) device\n"); |
227 | return; |
228 | } |
229 | } |
230 | |
231 | #else |
232 | |
233 | void __init usb_ehci_init(const struct ehci_hcd_omap_platform_data *pdata) |
234 | |
235 | { |
236 | } |
237 | |
238 | #endif /* CONFIG_USB_EHCI_HCD */ |
239 | |
240 | #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) |
241 | |
242 | static struct resource ohci_resources[] = { |
243 | { |
244 | .start = OMAP34XX_OHCI_BASE, |
245 | .end = OMAP34XX_OHCI_BASE + SZ_1K - 1, |
246 | .flags = IORESOURCE_MEM, |
247 | }, |
248 | { |
249 | .start = OMAP34XX_UHH_CONFIG_BASE, |
250 | .end = OMAP34XX_UHH_CONFIG_BASE + SZ_1K - 1, |
251 | .flags = IORESOURCE_MEM, |
252 | }, |
253 | { |
254 | .start = OMAP34XX_USBTLL_BASE, |
255 | .end = OMAP34XX_USBTLL_BASE + SZ_4K - 1, |
256 | .flags = IORESOURCE_MEM, |
257 | }, |
258 | { /* general IRQ */ |
259 | .start = INT_34XX_OHCI_IRQ, |
260 | .flags = IORESOURCE_IRQ, |
261 | } |
262 | }; |
263 | |
264 | static u64 ohci_dmamask = DMA_BIT_MASK(32); |
265 | |
266 | static struct platform_device ohci_device = { |
267 | .name = "ohci-omap3", |
268 | .id = 0, |
269 | .dev = { |
270 | .dma_mask = &ohci_dmamask, |
271 | .coherent_dma_mask = 0xffffffff, |
272 | }, |
273 | .num_resources = ARRAY_SIZE(ohci_resources), |
274 | .resource = ohci_resources, |
275 | }; |
276 | |
277 | static void setup_ohci_io_mux(const enum ohci_omap3_port_mode *port_mode) |
278 | { |
279 | switch (port_mode[0]) { |
280 | case OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0: |
281 | case OMAP_OHCI_PORT_MODE_PHY_6PIN_DPDM: |
282 | case OMAP_OHCI_PORT_MODE_TLL_6PIN_DATSE0: |
283 | case OMAP_OHCI_PORT_MODE_TLL_6PIN_DPDM: |
284 | omap_mux_init_signal("mm1_rxdp", |
285 | OMAP_PIN_INPUT_PULLDOWN); |
286 | omap_mux_init_signal("mm1_rxdm", |
287 | OMAP_PIN_INPUT_PULLDOWN); |
288 | /* FALLTHROUGH */ |
289 | case OMAP_OHCI_PORT_MODE_PHY_4PIN_DPDM: |
290 | case OMAP_OHCI_PORT_MODE_TLL_4PIN_DPDM: |
291 | omap_mux_init_signal("mm1_rxrcv", |
292 | OMAP_PIN_INPUT_PULLDOWN); |
293 | /* FALLTHROUGH */ |
294 | case OMAP_OHCI_PORT_MODE_PHY_3PIN_DATSE0: |
295 | case OMAP_OHCI_PORT_MODE_TLL_3PIN_DATSE0: |
296 | omap_mux_init_signal("mm1_txen_n", OMAP_PIN_OUTPUT); |
297 | /* FALLTHROUGH */ |
298 | case OMAP_OHCI_PORT_MODE_TLL_2PIN_DATSE0: |
299 | case OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM: |
300 | omap_mux_init_signal("mm1_txse0", |
301 | OMAP_PIN_INPUT_PULLDOWN); |
302 | omap_mux_init_signal("mm1_txdat", |
303 | OMAP_PIN_INPUT_PULLDOWN); |
304 | break; |
305 | case OMAP_OHCI_PORT_MODE_UNUSED: |
306 | /* FALLTHROUGH */ |
307 | default: |
308 | break; |
309 | } |
310 | switch (port_mode[1]) { |
311 | case OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0: |
312 | case OMAP_OHCI_PORT_MODE_PHY_6PIN_DPDM: |
313 | case OMAP_OHCI_PORT_MODE_TLL_6PIN_DATSE0: |
314 | case OMAP_OHCI_PORT_MODE_TLL_6PIN_DPDM: |
315 | omap_mux_init_signal("mm2_rxdp", |
316 | OMAP_PIN_INPUT_PULLDOWN); |
317 | omap_mux_init_signal("mm2_rxdm", |
318 | OMAP_PIN_INPUT_PULLDOWN); |
319 | /* FALLTHROUGH */ |
320 | case OMAP_OHCI_PORT_MODE_PHY_4PIN_DPDM: |
321 | case OMAP_OHCI_PORT_MODE_TLL_4PIN_DPDM: |
322 | omap_mux_init_signal("mm2_rxrcv", |
323 | OMAP_PIN_INPUT_PULLDOWN); |
324 | /* FALLTHROUGH */ |
325 | case OMAP_OHCI_PORT_MODE_PHY_3PIN_DATSE0: |
326 | case OMAP_OHCI_PORT_MODE_TLL_3PIN_DATSE0: |
327 | omap_mux_init_signal("mm2_txen_n", OMAP_PIN_OUTPUT); |
328 | /* FALLTHROUGH */ |
329 | case OMAP_OHCI_PORT_MODE_TLL_2PIN_DATSE0: |
330 | case OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM: |
331 | omap_mux_init_signal("mm2_txse0", |
332 | OMAP_PIN_INPUT_PULLDOWN); |
333 | omap_mux_init_signal("mm2_txdat", |
334 | OMAP_PIN_INPUT_PULLDOWN); |
335 | break; |
336 | case OMAP_OHCI_PORT_MODE_UNUSED: |
337 | /* FALLTHROUGH */ |
338 | default: |
339 | break; |
340 | } |
341 | switch (port_mode[2]) { |
342 | case OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0: |
343 | case OMAP_OHCI_PORT_MODE_PHY_6PIN_DPDM: |
344 | case OMAP_OHCI_PORT_MODE_TLL_6PIN_DATSE0: |
345 | case OMAP_OHCI_PORT_MODE_TLL_6PIN_DPDM: |
346 | omap_mux_init_signal("mm3_rxdp", |
347 | OMAP_PIN_INPUT_PULLDOWN); |
348 | omap_mux_init_signal("mm3_rxdm", |
349 | OMAP_PIN_INPUT_PULLDOWN); |
350 | /* FALLTHROUGH */ |
351 | case OMAP_OHCI_PORT_MODE_PHY_4PIN_DPDM: |
352 | case OMAP_OHCI_PORT_MODE_TLL_4PIN_DPDM: |
353 | omap_mux_init_signal("mm3_rxrcv", |
354 | OMAP_PIN_INPUT_PULLDOWN); |
355 | /* FALLTHROUGH */ |
356 | case OMAP_OHCI_PORT_MODE_PHY_3PIN_DATSE0: |
357 | case OMAP_OHCI_PORT_MODE_TLL_3PIN_DATSE0: |
358 | omap_mux_init_signal("mm3_txen_n", OMAP_PIN_OUTPUT); |
359 | /* FALLTHROUGH */ |
360 | case OMAP_OHCI_PORT_MODE_TLL_2PIN_DATSE0: |
361 | case OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM: |
362 | omap_mux_init_signal("mm3_txse0", |
363 | OMAP_PIN_INPUT_PULLDOWN); |
364 | omap_mux_init_signal("mm3_txdat", |
365 | OMAP_PIN_INPUT_PULLDOWN); |
366 | break; |
367 | case OMAP_OHCI_PORT_MODE_UNUSED: |
368 | /* FALLTHROUGH */ |
369 | default: |
370 | break; |
371 | } |
372 | } |
373 | |
374 | void __init usb_ohci_init(const struct ohci_hcd_omap_platform_data *pdata) |
375 | { |
376 | platform_device_add_data(&ohci_device, pdata, sizeof(*pdata)); |
377 | |
378 | /* Setup Pin IO MUX for OHCI */ |
379 | if (cpu_is_omap34xx()) |
380 | setup_ohci_io_mux(pdata->port_mode); |
381 | |
382 | if (platform_device_register(&ohci_device) < 0) { |
383 | pr_err("Unable to register FS-USB (OHCI) device\n"); |
384 | return; |
385 | } |
386 | } |
387 | |
388 | #else |
389 | |
390 | void __init usb_ohci_init(const struct ohci_hcd_omap_platform_data *pdata) |
391 | { |
392 | } |
393 | |
394 | #endif /* CONFIG_USB_OHCI_HCD */ |
395 |
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