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19#include <linux/types.h>
20#include <linux/errno.h>
21#include <linux/delay.h>
22#include <linux/platform_device.h>
23#include <linux/slab.h>
24#include <linux/dma-mapping.h>
25#include <linux/regulator/machine.h>
26#include <linux/regulator/fixed.h>
27#include <linux/string.h>
28#include <linux/io.h>
29#include <linux/gpio.h>
30#include <linux/usb/phy.h>
31#include <linux/usb/usb_phy_generic.h>
32
33#include "soc.h"
34#include "omap_device.h"
35#include "mux.h"
36#include "usb.h"
37
38#ifdef CONFIG_MFD_OMAP_USB_HOST
39
40#define OMAP_USBHS_DEVICE "usbhs_omap"
41#define OMAP_USBTLL_DEVICE "usbhs_tll"
42#define USBHS_UHH_HWMODNAME "usb_host_hs"
43#define USBHS_TLL_HWMODNAME "usb_tll_hs"
44
45
46
47
48
49static void __init setup_ehci_io_mux(const enum usbhs_omap_port_mode *port_mode)
50{
51 switch (port_mode[0]) {
52 case OMAP_EHCI_PORT_MODE_PHY:
53 omap_mux_init_signal("hsusb1_stp", OMAP_PIN_OUTPUT);
54 omap_mux_init_signal("hsusb1_clk", OMAP_PIN_OUTPUT);
55 omap_mux_init_signal("hsusb1_dir", OMAP_PIN_INPUT_PULLDOWN);
56 omap_mux_init_signal("hsusb1_nxt", OMAP_PIN_INPUT_PULLDOWN);
57 omap_mux_init_signal("hsusb1_data0", OMAP_PIN_INPUT_PULLDOWN);
58 omap_mux_init_signal("hsusb1_data1", OMAP_PIN_INPUT_PULLDOWN);
59 omap_mux_init_signal("hsusb1_data2", OMAP_PIN_INPUT_PULLDOWN);
60 omap_mux_init_signal("hsusb1_data3", OMAP_PIN_INPUT_PULLDOWN);
61 omap_mux_init_signal("hsusb1_data4", OMAP_PIN_INPUT_PULLDOWN);
62 omap_mux_init_signal("hsusb1_data5", OMAP_PIN_INPUT_PULLDOWN);
63 omap_mux_init_signal("hsusb1_data6", OMAP_PIN_INPUT_PULLDOWN);
64 omap_mux_init_signal("hsusb1_data7", OMAP_PIN_INPUT_PULLDOWN);
65 break;
66 case OMAP_EHCI_PORT_MODE_TLL:
67 omap_mux_init_signal("hsusb1_tll_stp",
68 OMAP_PIN_INPUT_PULLUP);
69 omap_mux_init_signal("hsusb1_tll_clk",
70 OMAP_PIN_INPUT_PULLDOWN);
71 omap_mux_init_signal("hsusb1_tll_dir",
72 OMAP_PIN_INPUT_PULLDOWN);
73 omap_mux_init_signal("hsusb1_tll_nxt",
74 OMAP_PIN_INPUT_PULLDOWN);
75 omap_mux_init_signal("hsusb1_tll_data0",
76 OMAP_PIN_INPUT_PULLDOWN);
77 omap_mux_init_signal("hsusb1_tll_data1",
78 OMAP_PIN_INPUT_PULLDOWN);
79 omap_mux_init_signal("hsusb1_tll_data2",
80 OMAP_PIN_INPUT_PULLDOWN);
81 omap_mux_init_signal("hsusb1_tll_data3",
82 OMAP_PIN_INPUT_PULLDOWN);
83 omap_mux_init_signal("hsusb1_tll_data4",
84 OMAP_PIN_INPUT_PULLDOWN);
85 omap_mux_init_signal("hsusb1_tll_data5",
86 OMAP_PIN_INPUT_PULLDOWN);
87 omap_mux_init_signal("hsusb1_tll_data6",
88 OMAP_PIN_INPUT_PULLDOWN);
89 omap_mux_init_signal("hsusb1_tll_data7",
90 OMAP_PIN_INPUT_PULLDOWN);
91 break;
92 case OMAP_USBHS_PORT_MODE_UNUSED:
93
94 default:
95 break;
96 }
97
98 switch (port_mode[1]) {
99 case OMAP_EHCI_PORT_MODE_PHY:
100 omap_mux_init_signal("hsusb2_stp", OMAP_PIN_OUTPUT);
101 omap_mux_init_signal("hsusb2_clk", OMAP_PIN_OUTPUT);
102 omap_mux_init_signal("hsusb2_dir", OMAP_PIN_INPUT_PULLDOWN);
103 omap_mux_init_signal("hsusb2_nxt", OMAP_PIN_INPUT_PULLDOWN);
104 omap_mux_init_signal("hsusb2_data0",
105 OMAP_PIN_INPUT_PULLDOWN);
106 omap_mux_init_signal("hsusb2_data1",
107 OMAP_PIN_INPUT_PULLDOWN);
108 omap_mux_init_signal("hsusb2_data2",
109 OMAP_PIN_INPUT_PULLDOWN);
110 omap_mux_init_signal("hsusb2_data3",
111 OMAP_PIN_INPUT_PULLDOWN);
112 omap_mux_init_signal("hsusb2_data4",
113 OMAP_PIN_INPUT_PULLDOWN);
114 omap_mux_init_signal("hsusb2_data5",
115 OMAP_PIN_INPUT_PULLDOWN);
116 omap_mux_init_signal("hsusb2_data6",
117 OMAP_PIN_INPUT_PULLDOWN);
118 omap_mux_init_signal("hsusb2_data7",
119 OMAP_PIN_INPUT_PULLDOWN);
120 break;
121 case OMAP_EHCI_PORT_MODE_TLL:
122 omap_mux_init_signal("hsusb2_tll_stp",
123 OMAP_PIN_INPUT_PULLUP);
124 omap_mux_init_signal("hsusb2_tll_clk",
125 OMAP_PIN_INPUT_PULLDOWN);
126 omap_mux_init_signal("hsusb2_tll_dir",
127 OMAP_PIN_INPUT_PULLDOWN);
128 omap_mux_init_signal("hsusb2_tll_nxt",
129 OMAP_PIN_INPUT_PULLDOWN);
130 omap_mux_init_signal("hsusb2_tll_data0",
131 OMAP_PIN_INPUT_PULLDOWN);
132 omap_mux_init_signal("hsusb2_tll_data1",
133 OMAP_PIN_INPUT_PULLDOWN);
134 omap_mux_init_signal("hsusb2_tll_data2",
135 OMAP_PIN_INPUT_PULLDOWN);
136 omap_mux_init_signal("hsusb2_tll_data3",
137 OMAP_PIN_INPUT_PULLDOWN);
138 omap_mux_init_signal("hsusb2_tll_data4",
139 OMAP_PIN_INPUT_PULLDOWN);
140 omap_mux_init_signal("hsusb2_tll_data5",
141 OMAP_PIN_INPUT_PULLDOWN);
142 omap_mux_init_signal("hsusb2_tll_data6",
143 OMAP_PIN_INPUT_PULLDOWN);
144 omap_mux_init_signal("hsusb2_tll_data7",
145 OMAP_PIN_INPUT_PULLDOWN);
146 break;
147 case OMAP_USBHS_PORT_MODE_UNUSED:
148
149 default:
150 break;
151 }
152
153 switch (port_mode[2]) {
154 case OMAP_EHCI_PORT_MODE_PHY:
155 printk(KERN_WARNING "Port3 can't be used in PHY mode\n");
156 break;
157 case OMAP_EHCI_PORT_MODE_TLL:
158 omap_mux_init_signal("hsusb3_tll_stp",
159 OMAP_PIN_INPUT_PULLUP);
160 omap_mux_init_signal("hsusb3_tll_clk",
161 OMAP_PIN_INPUT_PULLDOWN);
162 omap_mux_init_signal("hsusb3_tll_dir",
163 OMAP_PIN_INPUT_PULLDOWN);
164 omap_mux_init_signal("hsusb3_tll_nxt",
165 OMAP_PIN_INPUT_PULLDOWN);
166 omap_mux_init_signal("hsusb3_tll_data0",
167 OMAP_PIN_INPUT_PULLDOWN);
168 omap_mux_init_signal("hsusb3_tll_data1",
169 OMAP_PIN_INPUT_PULLDOWN);
170 omap_mux_init_signal("hsusb3_tll_data2",
171 OMAP_PIN_INPUT_PULLDOWN);
172 omap_mux_init_signal("hsusb3_tll_data3",
173 OMAP_PIN_INPUT_PULLDOWN);
174 omap_mux_init_signal("hsusb3_tll_data4",
175 OMAP_PIN_INPUT_PULLDOWN);
176 omap_mux_init_signal("hsusb3_tll_data5",
177 OMAP_PIN_INPUT_PULLDOWN);
178 omap_mux_init_signal("hsusb3_tll_data6",
179 OMAP_PIN_INPUT_PULLDOWN);
180 omap_mux_init_signal("hsusb3_tll_data7",
181 OMAP_PIN_INPUT_PULLDOWN);
182 break;
183 case OMAP_USBHS_PORT_MODE_UNUSED:
184
185 default:
186 break;
187 }
188
189 return;
190}
191
192static void __init setup_ohci_io_mux(const enum usbhs_omap_port_mode *port_mode)
193{
194 switch (port_mode[0]) {
195 case OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0:
196 case OMAP_OHCI_PORT_MODE_PHY_6PIN_DPDM:
197 case OMAP_OHCI_PORT_MODE_TLL_6PIN_DATSE0:
198 case OMAP_OHCI_PORT_MODE_TLL_6PIN_DPDM:
199 omap_mux_init_signal("mm1_rxdp",
200 OMAP_PIN_INPUT_PULLDOWN);
201 omap_mux_init_signal("mm1_rxdm",
202 OMAP_PIN_INPUT_PULLDOWN);
203
204 case OMAP_OHCI_PORT_MODE_PHY_4PIN_DPDM:
205 case OMAP_OHCI_PORT_MODE_TLL_4PIN_DPDM:
206 omap_mux_init_signal("mm1_rxrcv",
207 OMAP_PIN_INPUT_PULLDOWN);
208
209 case OMAP_OHCI_PORT_MODE_PHY_3PIN_DATSE0:
210 case OMAP_OHCI_PORT_MODE_TLL_3PIN_DATSE0:
211 omap_mux_init_signal("mm1_txen_n", OMAP_PIN_OUTPUT);
212
213 case OMAP_OHCI_PORT_MODE_TLL_2PIN_DATSE0:
214 case OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM:
215 omap_mux_init_signal("mm1_txse0",
216 OMAP_PIN_INPUT_PULLDOWN);
217 omap_mux_init_signal("mm1_txdat",
218 OMAP_PIN_INPUT_PULLDOWN);
219 break;
220 case OMAP_USBHS_PORT_MODE_UNUSED:
221
222 default:
223 break;
224 }
225 switch (port_mode[1]) {
226 case OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0:
227 case OMAP_OHCI_PORT_MODE_PHY_6PIN_DPDM:
228 case OMAP_OHCI_PORT_MODE_TLL_6PIN_DATSE0:
229 case OMAP_OHCI_PORT_MODE_TLL_6PIN_DPDM:
230 omap_mux_init_signal("mm2_rxdp",
231 OMAP_PIN_INPUT_PULLDOWN);
232 omap_mux_init_signal("mm2_rxdm",
233 OMAP_PIN_INPUT_PULLDOWN);
234
235 case OMAP_OHCI_PORT_MODE_PHY_4PIN_DPDM:
236 case OMAP_OHCI_PORT_MODE_TLL_4PIN_DPDM:
237 omap_mux_init_signal("mm2_rxrcv",
238 OMAP_PIN_INPUT_PULLDOWN);
239
240 case OMAP_OHCI_PORT_MODE_PHY_3PIN_DATSE0:
241 case OMAP_OHCI_PORT_MODE_TLL_3PIN_DATSE0:
242 omap_mux_init_signal("mm2_txen_n", OMAP_PIN_OUTPUT);
243
244 case OMAP_OHCI_PORT_MODE_TLL_2PIN_DATSE0:
245 case OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM:
246 omap_mux_init_signal("mm2_txse0",
247 OMAP_PIN_INPUT_PULLDOWN);
248 omap_mux_init_signal("mm2_txdat",
249 OMAP_PIN_INPUT_PULLDOWN);
250 break;
251 case OMAP_USBHS_PORT_MODE_UNUSED:
252
253 default:
254 break;
255 }
256 switch (port_mode[2]) {
257 case OMAP_OHCI_PORT_MODE_PHY_6PIN_DATSE0:
258 case OMAP_OHCI_PORT_MODE_PHY_6PIN_DPDM:
259 case OMAP_OHCI_PORT_MODE_TLL_6PIN_DATSE0:
260 case OMAP_OHCI_PORT_MODE_TLL_6PIN_DPDM:
261 omap_mux_init_signal("mm3_rxdp",
262 OMAP_PIN_INPUT_PULLDOWN);
263 omap_mux_init_signal("mm3_rxdm",
264 OMAP_PIN_INPUT_PULLDOWN);
265
266 case OMAP_OHCI_PORT_MODE_PHY_4PIN_DPDM:
267 case OMAP_OHCI_PORT_MODE_TLL_4PIN_DPDM:
268 omap_mux_init_signal("mm3_rxrcv",
269 OMAP_PIN_INPUT_PULLDOWN);
270
271 case OMAP_OHCI_PORT_MODE_PHY_3PIN_DATSE0:
272 case OMAP_OHCI_PORT_MODE_TLL_3PIN_DATSE0:
273 omap_mux_init_signal("mm3_txen_n", OMAP_PIN_OUTPUT);
274
275 case OMAP_OHCI_PORT_MODE_TLL_2PIN_DATSE0:
276 case OMAP_OHCI_PORT_MODE_TLL_2PIN_DPDM:
277 omap_mux_init_signal("mm3_txse0",
278 OMAP_PIN_INPUT_PULLDOWN);
279 omap_mux_init_signal("mm3_txdat",
280 OMAP_PIN_INPUT_PULLDOWN);
281 break;
282 case OMAP_USBHS_PORT_MODE_UNUSED:
283
284 default:
285 break;
286 }
287}
288
289void __init usbhs_init(struct usbhs_omap_platform_data *pdata)
290{
291 struct omap_hwmod *uhh_hwm, *tll_hwm;
292 struct platform_device *pdev;
293 int bus_id = -1;
294
295 if (cpu_is_omap34xx()) {
296 setup_ehci_io_mux(pdata->port_mode);
297 setup_ohci_io_mux(pdata->port_mode);
298
299 if (omap_rev() <= OMAP3430_REV_ES2_1)
300 pdata->single_ulpi_bypass = true;
301
302 }
303
304 uhh_hwm = omap_hwmod_lookup(USBHS_UHH_HWMODNAME);
305 if (!uhh_hwm) {
306 pr_err("Could not look up %s\n", USBHS_UHH_HWMODNAME);
307 return;
308 }
309
310 tll_hwm = omap_hwmod_lookup(USBHS_TLL_HWMODNAME);
311 if (!tll_hwm) {
312 pr_err("Could not look up %s\n", USBHS_TLL_HWMODNAME);
313 return;
314 }
315
316 pdev = omap_device_build(OMAP_USBTLL_DEVICE, bus_id, tll_hwm,
317 pdata, sizeof(*pdata));
318 if (IS_ERR(pdev)) {
319 pr_err("Could not build hwmod device %s\n",
320 USBHS_TLL_HWMODNAME);
321 return;
322 }
323
324 pdev = omap_device_build(OMAP_USBHS_DEVICE, bus_id, uhh_hwm,
325 pdata, sizeof(*pdata));
326 if (IS_ERR(pdev)) {
327 pr_err("Could not build hwmod devices %s\n",
328 USBHS_UHH_HWMODNAME);
329 return;
330 }
331}
332
333#else
334
335void __init usbhs_init(struct usbhs_omap_platform_data *pdata)
336{
337}
338
339#endif
340
341
342static struct fixed_voltage_config hsusb_reg_config = {
343
344 .microvolts = 3300000,
345 .gpio = -1,
346 .startup_delay = 70000,
347 .enable_high = 1,
348 .enabled_at_boot = 0,
349
350};
351
352static const char *nop_name = "usb_phy_generic";
353static const char *reg_name = "reg-fixed-voltage";
354
355
356
357
358
359
360
361
362
363static int usbhs_add_regulator(char *name, char *dev_id, char *dev_supply,
364 int gpio, int polarity)
365{
366 struct regulator_consumer_supply *supplies;
367 struct regulator_init_data *reg_data;
368 struct fixed_voltage_config *config;
369 struct platform_device *pdev;
370 struct platform_device_info pdevinfo;
371 int ret = -ENOMEM;
372
373 supplies = kzalloc(sizeof(*supplies), GFP_KERNEL);
374 if (!supplies)
375 return -ENOMEM;
376
377 supplies->supply = dev_supply;
378 supplies->dev_name = dev_id;
379
380 reg_data = kzalloc(sizeof(*reg_data), GFP_KERNEL);
381 if (!reg_data)
382 goto err_data;
383
384 reg_data->constraints.valid_ops_mask = REGULATOR_CHANGE_STATUS;
385 reg_data->consumer_supplies = supplies;
386 reg_data->num_consumer_supplies = 1;
387
388 config = kmemdup(&hsusb_reg_config, sizeof(hsusb_reg_config),
389 GFP_KERNEL);
390 if (!config)
391 goto err_config;
392
393 config->supply_name = kstrdup(name, GFP_KERNEL);
394 if (!config->supply_name)
395 goto err_supplyname;
396
397 config->gpio = gpio;
398 config->enable_high = polarity;
399 config->init_data = reg_data;
400
401
402 memset(&pdevinfo, 0, sizeof(pdevinfo));
403 pdevinfo.name = reg_name;
404 pdevinfo.id = PLATFORM_DEVID_AUTO;
405 pdevinfo.data = config;
406 pdevinfo.size_data = sizeof(*config);
407
408 pdev = platform_device_register_full(&pdevinfo);
409 if (IS_ERR(pdev)) {
410 ret = PTR_ERR(pdev);
411 pr_err("%s: Failed registering regulator %s for %s : %d\n",
412 __func__, name, dev_id, ret);
413 goto err_register;
414 }
415
416 return 0;
417
418err_register:
419 kfree(config->supply_name);
420err_supplyname:
421 kfree(config);
422err_config:
423 kfree(reg_data);
424err_data:
425 kfree(supplies);
426 return ret;
427}
428
429#define MAX_STR 20
430
431int usbhs_init_phys(struct usbhs_phy_data *phy, int num_phys)
432{
433 char rail_name[MAX_STR];
434 int i;
435 struct platform_device *pdev;
436 char *phy_id;
437 struct platform_device_info pdevinfo;
438 struct usb_phy_generic_platform_data nop_pdata;
439
440 for (i = 0; i < num_phys; i++) {
441
442 if (!phy->port) {
443 pr_err("%s: Invalid port 0. Must start from 1\n",
444 __func__);
445 continue;
446 }
447
448
449 if (!gpio_is_valid(phy->reset_gpio) &&
450 !gpio_is_valid(phy->vcc_gpio))
451 continue;
452
453 phy_id = kmalloc(MAX_STR, GFP_KERNEL);
454 if (!phy_id) {
455 pr_err("%s: kmalloc() failed\n", __func__);
456 return -ENOMEM;
457 }
458
459
460 memset(&nop_pdata, 0, sizeof(nop_pdata));
461 if (gpio_is_valid(phy->vcc_gpio))
462 nop_pdata.needs_vcc = true;
463 nop_pdata.gpio_reset = phy->reset_gpio;
464 nop_pdata.type = USB_PHY_TYPE_USB2;
465
466
467 memset(&pdevinfo, 0, sizeof(pdevinfo));
468 pdevinfo.name = nop_name;
469 pdevinfo.id = phy->port;
470 pdevinfo.data = &nop_pdata;
471 pdevinfo.size_data =
472 sizeof(struct usb_phy_generic_platform_data);
473 scnprintf(phy_id, MAX_STR, "usb_phy_generic.%d",
474 phy->port);
475 pdev = platform_device_register_full(&pdevinfo);
476 if (IS_ERR(pdev)) {
477 pr_err("%s: Failed to register device %s : %ld\n",
478 __func__, phy_id, PTR_ERR(pdev));
479 kfree(phy_id);
480 continue;
481 }
482
483 usb_bind_phy("ehci-omap.0", phy->port - 1, phy_id);
484
485
486 if (gpio_is_valid(phy->vcc_gpio)) {
487 scnprintf(rail_name, MAX_STR, "hsusb%d_vcc", phy->port);
488 usbhs_add_regulator(rail_name, phy_id, "vcc",
489 phy->vcc_gpio, phy->vcc_polarity);
490 }
491
492 phy++;
493 }
494
495 return 0;
496}
497
