blob: e68f3d02cd1a3cb14a6dbd05abdf59be1a365a4e [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * OHCI HCD (Host Controller Driver) for USB.
3 *
4 * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
5 * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net>
6 * (C) Copyright 2002 Hewlett-Packard Company
7 *
8 * Bus Glue for pxa27x
9 *
10 * Written by Christopher Hoover <ch@hpl.hp.com>
11 * Based on fragments of previous driver by Russell King et al.
12 *
13 * Modified for LH7A404 from ohci-sa1111.c
14 * by Durgesh Pattamatta <pattamattad@sharpsec.com>
15 *
16 * Modified for pxa27x from ohci-lh7a404.c
17 * by Nick Bane <nick@cecomputing.co.uk> 26-8-2004
18 *
19 * This file is licenced under the GPL.
20 */
21
eric miaoa8bcf412007-12-12 08:53:25 +080022#include <linux/clk.h>
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +053023#include <linux/device.h>
Daniel Mack98763882013-11-15 14:19:02 +010024#include <linux/dma-mapping.h>
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +053025#include <linux/io.h>
26#include <linux/kernel.h>
27#include <linux/module.h>
Daniel Mack1139b452012-07-30 09:29:12 +020028#include <linux/of_platform.h>
29#include <linux/of_gpio.h>
Arnd Bergmann293b2da2012-08-24 15:16:48 +020030#include <linux/platform_data/usb-ohci-pxa27x.h>
31#include <linux/platform_data/usb-pxa3xx-ulpi.h>
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +053032#include <linux/platform_device.h>
Laurent Pinchartcecabe52014-04-16 18:00:11 +020033#include <linux/regulator/consumer.h>
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +053034#include <linux/signal.h>
35#include <linux/usb.h>
36#include <linux/usb/hcd.h>
37#include <linux/usb/otg.h>
38
39#include <mach/hardware.h>
40
41#include "ohci.h"
42
43#define DRIVER_DESC "OHCI PXA27x/PXA3x driver"
Linus Torvalds1da177e2005-04-16 15:20:36 -070044
Eric Miao596050b2008-09-27 16:12:32 +080045/*
46 * UHC: USB Host Controller (OHCI-like) register definitions
47 */
Eric Miao0c392ed2008-10-04 12:57:21 +080048#define UHCREV (0x0000) /* UHC HCI Spec Revision */
49#define UHCHCON (0x0004) /* UHC Host Control Register */
50#define UHCCOMS (0x0008) /* UHC Command Status Register */
51#define UHCINTS (0x000C) /* UHC Interrupt Status Register */
52#define UHCINTE (0x0010) /* UHC Interrupt Enable */
53#define UHCINTD (0x0014) /* UHC Interrupt Disable */
54#define UHCHCCA (0x0018) /* UHC Host Controller Comm. Area */
55#define UHCPCED (0x001C) /* UHC Period Current Endpt Descr */
56#define UHCCHED (0x0020) /* UHC Control Head Endpt Descr */
57#define UHCCCED (0x0024) /* UHC Control Current Endpt Descr */
58#define UHCBHED (0x0028) /* UHC Bulk Head Endpt Descr */
59#define UHCBCED (0x002C) /* UHC Bulk Current Endpt Descr */
60#define UHCDHEAD (0x0030) /* UHC Done Head */
61#define UHCFMI (0x0034) /* UHC Frame Interval */
62#define UHCFMR (0x0038) /* UHC Frame Remaining */
63#define UHCFMN (0x003C) /* UHC Frame Number */
64#define UHCPERS (0x0040) /* UHC Periodic Start */
65#define UHCLS (0x0044) /* UHC Low Speed Threshold */
Eric Miao596050b2008-09-27 16:12:32 +080066
Eric Miao0c392ed2008-10-04 12:57:21 +080067#define UHCRHDA (0x0048) /* UHC Root Hub Descriptor A */
Eric Miao596050b2008-09-27 16:12:32 +080068#define UHCRHDA_NOCP (1 << 12) /* No over current protection */
69#define UHCRHDA_OCPM (1 << 11) /* Over Current Protection Mode */
70#define UHCRHDA_POTPGT(x) \
71 (((x) & 0xff) << 24) /* Power On To Power Good Time */
72
Eric Miao0c392ed2008-10-04 12:57:21 +080073#define UHCRHDB (0x004C) /* UHC Root Hub Descriptor B */
74#define UHCRHS (0x0050) /* UHC Root Hub Status */
75#define UHCRHPS1 (0x0054) /* UHC Root Hub Port 1 Status */
76#define UHCRHPS2 (0x0058) /* UHC Root Hub Port 2 Status */
77#define UHCRHPS3 (0x005C) /* UHC Root Hub Port 3 Status */
Eric Miao596050b2008-09-27 16:12:32 +080078
Eric Miao0c392ed2008-10-04 12:57:21 +080079#define UHCSTAT (0x0060) /* UHC Status Register */
Eric Miao596050b2008-09-27 16:12:32 +080080#define UHCSTAT_UPS3 (1 << 16) /* USB Power Sense Port3 */
81#define UHCSTAT_SBMAI (1 << 15) /* System Bus Master Abort Interrupt*/
82#define UHCSTAT_SBTAI (1 << 14) /* System Bus Target Abort Interrupt*/
83#define UHCSTAT_UPRI (1 << 13) /* USB Port Resume Interrupt */
84#define UHCSTAT_UPS2 (1 << 12) /* USB Power Sense Port 2 */
85#define UHCSTAT_UPS1 (1 << 11) /* USB Power Sense Port 1 */
86#define UHCSTAT_HTA (1 << 10) /* HCI Target Abort */
87#define UHCSTAT_HBA (1 << 8) /* HCI Buffer Active */
88#define UHCSTAT_RWUE (1 << 7) /* HCI Remote Wake Up Event */
89
Eric Miao0c392ed2008-10-04 12:57:21 +080090#define UHCHR (0x0064) /* UHC Reset Register */
Eric Miao596050b2008-09-27 16:12:32 +080091#define UHCHR_SSEP3 (1 << 11) /* Sleep Standby Enable for Port3 */
92#define UHCHR_SSEP2 (1 << 10) /* Sleep Standby Enable for Port2 */
93#define UHCHR_SSEP1 (1 << 9) /* Sleep Standby Enable for Port1 */
94#define UHCHR_PCPL (1 << 7) /* Power control polarity low */
95#define UHCHR_PSPL (1 << 6) /* Power sense polarity low */
96#define UHCHR_SSE (1 << 5) /* Sleep Standby Enable */
97#define UHCHR_UIT (1 << 4) /* USB Interrupt Test */
98#define UHCHR_SSDC (1 << 3) /* Simulation Scale Down Clock */
99#define UHCHR_CGR (1 << 2) /* Clock Generation Reset */
100#define UHCHR_FHR (1 << 1) /* Force Host Controller Reset */
101#define UHCHR_FSBIR (1 << 0) /* Force System Bus Iface Reset */
102
Eric Miao0c392ed2008-10-04 12:57:21 +0800103#define UHCHIE (0x0068) /* UHC Interrupt Enable Register*/
Eric Miao596050b2008-09-27 16:12:32 +0800104#define UHCHIE_UPS3IE (1 << 14) /* Power Sense Port3 IntEn */
105#define UHCHIE_UPRIE (1 << 13) /* Port Resume IntEn */
106#define UHCHIE_UPS2IE (1 << 12) /* Power Sense Port2 IntEn */
107#define UHCHIE_UPS1IE (1 << 11) /* Power Sense Port1 IntEn */
108#define UHCHIE_TAIE (1 << 10) /* HCI Interface Transfer Abort
109 Interrupt Enable*/
110#define UHCHIE_HBAIE (1 << 8) /* HCI Buffer Active IntEn */
111#define UHCHIE_RWIE (1 << 7) /* Remote Wake-up IntEn */
112
Eric Miao0c392ed2008-10-04 12:57:21 +0800113#define UHCHIT (0x006C) /* UHC Interrupt Test register */
Eric Miao596050b2008-09-27 16:12:32 +0800114
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115#define PXA_UHC_MAX_PORTNUM 3
116
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530117static const char hcd_name[] = "ohci-pxa27x";
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530119static struct hc_driver __read_mostly ohci_pxa27x_hc_driver;
120
121struct pxa27x_ohci {
Eric Miao0c392ed2008-10-04 12:57:21 +0800122 struct clk *clk;
123 void __iomem *mmio_base;
Laurent Pinchartcecabe52014-04-16 18:00:11 +0200124 struct regulator *vbus[3];
125 bool vbus_enabled[3];
Eric Miao0c392ed2008-10-04 12:57:21 +0800126};
127
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530128#define to_pxa27x_ohci(hcd) (struct pxa27x_ohci *)(hcd_to_ohci(hcd)->priv)
eric miaoa8bcf412007-12-12 08:53:25 +0800129
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130/*
131 PMM_NPS_MODE -- PMM Non-power switching mode
132 Ports are powered continuously.
133
134 PMM_GLOBAL_MODE -- PMM global switching mode
135 All ports are powered at the same time.
136
137 PMM_PERPORT_MODE -- PMM per port switching mode
138 Ports are powered individually.
139 */
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530140static int pxa27x_ohci_select_pmm(struct pxa27x_ohci *pxa_ohci, int mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141{
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530142 uint32_t uhcrhda = __raw_readl(pxa_ohci->mmio_base + UHCRHDA);
143 uint32_t uhcrhdb = __raw_readl(pxa_ohci->mmio_base + UHCRHDB);
Eric Miao0c392ed2008-10-04 12:57:21 +0800144
145 switch (mode) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146 case PMM_NPS_MODE:
Eric Miao0c392ed2008-10-04 12:57:21 +0800147 uhcrhda |= RH_A_NPS;
David Brownelldd9048a2006-12-05 03:18:31 -0800148 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149 case PMM_GLOBAL_MODE:
Eric Miao0c392ed2008-10-04 12:57:21 +0800150 uhcrhda &= ~(RH_A_NPS & RH_A_PSM);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151 break;
152 case PMM_PERPORT_MODE:
Eric Miao0c392ed2008-10-04 12:57:21 +0800153 uhcrhda &= ~(RH_A_NPS);
154 uhcrhda |= RH_A_PSM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155
156 /* Set port power control mask bits, only 3 ports. */
Eric Miao0c392ed2008-10-04 12:57:21 +0800157 uhcrhdb |= (0x7<<17);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158 break;
159 default:
160 printk( KERN_ERR
David Brownelldd9048a2006-12-05 03:18:31 -0800161 "Invalid mode %d, set to non-power switch mode.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162 mode );
163
Eric Miao0c392ed2008-10-04 12:57:21 +0800164 uhcrhda |= RH_A_NPS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165 }
166
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530167 __raw_writel(uhcrhda, pxa_ohci->mmio_base + UHCRHDA);
168 __raw_writel(uhcrhdb, pxa_ohci->mmio_base + UHCRHDB);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700169 return 0;
170}
171
Laurent Pinchartcecabe52014-04-16 18:00:11 +0200172static int pxa27x_ohci_set_vbus_power(struct pxa27x_ohci *pxa_ohci,
173 unsigned int port, bool enable)
174{
175 struct regulator *vbus = pxa_ohci->vbus[port];
176 int ret = 0;
177
178 if (IS_ERR_OR_NULL(vbus))
179 return 0;
180
181 if (enable && !pxa_ohci->vbus_enabled[port])
182 ret = regulator_enable(vbus);
183 else if (!enable && pxa_ohci->vbus_enabled[port])
184 ret = regulator_disable(vbus);
185
186 if (ret < 0)
187 return ret;
188
189 pxa_ohci->vbus_enabled[port] = enable;
190
191 return 0;
192}
193
194static int pxa27x_ohci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
195 u16 wIndex, char *buf, u16 wLength)
196{
197 struct pxa27x_ohci *pxa_ohci = to_pxa27x_ohci(hcd);
198 int ret;
199
200 switch (typeReq) {
201 case SetPortFeature:
202 case ClearPortFeature:
203 if (!wIndex || wIndex > 3)
204 return -EPIPE;
205
206 if (wValue != USB_PORT_FEAT_POWER)
207 break;
208
209 ret = pxa27x_ohci_set_vbus_power(pxa_ohci, wIndex - 1,
210 typeReq == SetPortFeature);
211 if (ret)
212 return ret;
213 break;
214 }
215
216 return ohci_hub_control(hcd, typeReq, wValue, wIndex, buf, wLength);
217}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218/*-------------------------------------------------------------------------*/
219
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530220static inline void pxa27x_setup_hc(struct pxa27x_ohci *pxa_ohci,
Eric Miao0c392ed2008-10-04 12:57:21 +0800221 struct pxaohci_platform_data *inf)
Eric Miao097b5332008-09-27 15:49:57 +0800222{
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530223 uint32_t uhchr = __raw_readl(pxa_ohci->mmio_base + UHCHR);
224 uint32_t uhcrhda = __raw_readl(pxa_ohci->mmio_base + UHCRHDA);
Eric Miao097b5332008-09-27 15:49:57 +0800225
226 if (inf->flags & ENABLE_PORT1)
227 uhchr &= ~UHCHR_SSEP1;
228
229 if (inf->flags & ENABLE_PORT2)
230 uhchr &= ~UHCHR_SSEP2;
231
232 if (inf->flags & ENABLE_PORT3)
233 uhchr &= ~UHCHR_SSEP3;
234
235 if (inf->flags & POWER_CONTROL_LOW)
236 uhchr |= UHCHR_PCPL;
237
238 if (inf->flags & POWER_SENSE_LOW)
239 uhchr |= UHCHR_PSPL;
240
241 if (inf->flags & NO_OC_PROTECTION)
242 uhcrhda |= UHCRHDA_NOCP;
Aric Blumer7b4361f2009-07-30 13:26:58 -0400243 else
244 uhcrhda &= ~UHCRHDA_NOCP;
Eric Miao097b5332008-09-27 15:49:57 +0800245
246 if (inf->flags & OC_MODE_PERPORT)
247 uhcrhda |= UHCRHDA_OCPM;
Aric Blumer7b4361f2009-07-30 13:26:58 -0400248 else
249 uhcrhda &= ~UHCRHDA_OCPM;
Eric Miao097b5332008-09-27 15:49:57 +0800250
251 if (inf->power_on_delay) {
252 uhcrhda &= ~UHCRHDA_POTPGT(0xff);
253 uhcrhda |= UHCRHDA_POTPGT(inf->power_on_delay / 2);
254 }
255
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530256 __raw_writel(uhchr, pxa_ohci->mmio_base + UHCHR);
257 __raw_writel(uhcrhda, pxa_ohci->mmio_base + UHCRHDA);
Eric Miao0c392ed2008-10-04 12:57:21 +0800258}
259
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530260static inline void pxa27x_reset_hc(struct pxa27x_ohci *pxa_ohci)
Eric Miao0c392ed2008-10-04 12:57:21 +0800261{
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530262 uint32_t uhchr = __raw_readl(pxa_ohci->mmio_base + UHCHR);
Eric Miao0c392ed2008-10-04 12:57:21 +0800263
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530264 __raw_writel(uhchr | UHCHR_FHR, pxa_ohci->mmio_base + UHCHR);
Eric Miao0c392ed2008-10-04 12:57:21 +0800265 udelay(11);
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530266 __raw_writel(uhchr & ~UHCHR_FHR, pxa_ohci->mmio_base + UHCHR);
Eric Miao097b5332008-09-27 15:49:57 +0800267}
268
Eric Miao59376cc2010-07-14 21:17:25 +0800269#ifdef CONFIG_PXA27x
Eric Miao0cb0b0d2008-10-04 12:45:39 +0800270extern void pxa27x_clear_otgph(void);
271#else
272#define pxa27x_clear_otgph() do {} while (0)
273#endif
274
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530275static int pxa27x_start_hc(struct pxa27x_ohci *pxa_ohci, struct device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276{
Richard Purdie81f280e2005-11-12 14:22:11 +0000277 int retval = 0;
278 struct pxaohci_platform_data *inf;
Eric Miao0c392ed2008-10-04 12:57:21 +0800279 uint32_t uhchr;
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530280 struct usb_hcd *hcd = dev_get_drvdata(dev);
Richard Purdie81f280e2005-11-12 14:22:11 +0000281
Jingoo Hand4f09e22013-07-30 19:59:40 +0900282 inf = dev_get_platdata(dev);
Richard Purdie81f280e2005-11-12 14:22:11 +0000283
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530284 clk_prepare_enable(pxa_ohci->clk);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700285
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530286 pxa27x_reset_hc(pxa_ohci);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530288 uhchr = __raw_readl(pxa_ohci->mmio_base + UHCHR) | UHCHR_FSBIR;
289 __raw_writel(uhchr, pxa_ohci->mmio_base + UHCHR);
Eric Miao0c392ed2008-10-04 12:57:21 +0800290
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530291 while (__raw_readl(pxa_ohci->mmio_base + UHCHR) & UHCHR_FSBIR)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700292 cpu_relax();
293
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530294 pxa27x_setup_hc(pxa_ohci, inf);
Eric Miao097b5332008-09-27 15:49:57 +0800295
Richard Purdie81f280e2005-11-12 14:22:11 +0000296 if (inf->init)
297 retval = inf->init(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298
Richard Purdie81f280e2005-11-12 14:22:11 +0000299 if (retval < 0)
300 return retval;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301
Igor Grinberg6dc3ae82010-07-27 15:06:59 +0300302 if (cpu_is_pxa3xx())
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530303 pxa3xx_u2d_start_hc(&hcd->self);
Igor Grinberg6dc3ae82010-07-27 15:06:59 +0300304
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530305 uhchr = __raw_readl(pxa_ohci->mmio_base + UHCHR) & ~UHCHR_SSE;
306 __raw_writel(uhchr, pxa_ohci->mmio_base + UHCHR);
307 __raw_writel(UHCHIE_UPRIE | UHCHIE_RWIE, pxa_ohci->mmio_base + UHCHIE);
David Brownell155faf52005-08-31 11:54:09 -0700308
309 /* Clear any OTG Pin Hold */
Eric Miao0cb0b0d2008-10-04 12:45:39 +0800310 pxa27x_clear_otgph();
Richard Purdie81f280e2005-11-12 14:22:11 +0000311 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312}
313
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530314static void pxa27x_stop_hc(struct pxa27x_ohci *pxa_ohci, struct device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315{
Richard Purdie81f280e2005-11-12 14:22:11 +0000316 struct pxaohci_platform_data *inf;
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530317 struct usb_hcd *hcd = dev_get_drvdata(dev);
Eric Miao0c392ed2008-10-04 12:57:21 +0800318 uint32_t uhccoms;
Richard Purdie81f280e2005-11-12 14:22:11 +0000319
Jingoo Hand4f09e22013-07-30 19:59:40 +0900320 inf = dev_get_platdata(dev);
Richard Purdie81f280e2005-11-12 14:22:11 +0000321
Igor Grinberg6dc3ae82010-07-27 15:06:59 +0300322 if (cpu_is_pxa3xx())
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530323 pxa3xx_u2d_stop_hc(&hcd->self);
Igor Grinberg6dc3ae82010-07-27 15:06:59 +0300324
Richard Purdie81f280e2005-11-12 14:22:11 +0000325 if (inf->exit)
326 inf->exit(dev);
327
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530328 pxa27x_reset_hc(pxa_ohci);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329
Eric Miao0c392ed2008-10-04 12:57:21 +0800330 /* Host Controller Reset */
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530331 uhccoms = __raw_readl(pxa_ohci->mmio_base + UHCCOMS) | 0x01;
332 __raw_writel(uhccoms, pxa_ohci->mmio_base + UHCCOMS);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700333 udelay(10);
334
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530335 clk_disable_unprepare(pxa_ohci->clk);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700336}
337
Daniel Mack1139b452012-07-30 09:29:12 +0200338#ifdef CONFIG_OF
339static const struct of_device_id pxa_ohci_dt_ids[] = {
340 { .compatible = "marvell,pxa-ohci" },
341 { }
342};
343
344MODULE_DEVICE_TABLE(of, pxa_ohci_dt_ids);
345
Bill Pemberton41ac7b32012-11-19 13:21:48 -0500346static int ohci_pxa_of_init(struct platform_device *pdev)
Daniel Mack1139b452012-07-30 09:29:12 +0200347{
348 struct device_node *np = pdev->dev.of_node;
349 struct pxaohci_platform_data *pdata;
350 u32 tmp;
Russell King22d9d8e2013-06-10 16:28:49 +0100351 int ret;
Daniel Mack1139b452012-07-30 09:29:12 +0200352
353 if (!np)
354 return 0;
355
356 /* Right now device-tree probed devices don't get dma_mask set.
357 * Since shared usb code relies on it, set it here for now.
358 * Once we have dma capability bindings this can go away.
359 */
Russell Kinge1fd7342013-06-27 12:36:37 +0100360 ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
Russell King22d9d8e2013-06-10 16:28:49 +0100361 if (ret)
362 return ret;
Daniel Mack1139b452012-07-30 09:29:12 +0200363
364 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
365 if (!pdata)
366 return -ENOMEM;
367
368 if (of_get_property(np, "marvell,enable-port1", NULL))
369 pdata->flags |= ENABLE_PORT1;
370 if (of_get_property(np, "marvell,enable-port2", NULL))
371 pdata->flags |= ENABLE_PORT2;
372 if (of_get_property(np, "marvell,enable-port3", NULL))
373 pdata->flags |= ENABLE_PORT3;
374 if (of_get_property(np, "marvell,port-sense-low", NULL))
375 pdata->flags |= POWER_SENSE_LOW;
376 if (of_get_property(np, "marvell,power-control-low", NULL))
377 pdata->flags |= POWER_CONTROL_LOW;
378 if (of_get_property(np, "marvell,no-oc-protection", NULL))
379 pdata->flags |= NO_OC_PROTECTION;
380 if (of_get_property(np, "marvell,oc-mode-perport", NULL))
381 pdata->flags |= OC_MODE_PERPORT;
382 if (!of_property_read_u32(np, "marvell,power-on-delay", &tmp))
383 pdata->power_on_delay = tmp;
384 if (!of_property_read_u32(np, "marvell,port-mode", &tmp))
385 pdata->port_mode = tmp;
386 if (!of_property_read_u32(np, "marvell,power-budget", &tmp))
387 pdata->power_budget = tmp;
388
389 pdev->dev.platform_data = pdata;
390
391 return 0;
392}
393#else
Bill Pemberton41ac7b32012-11-19 13:21:48 -0500394static int ohci_pxa_of_init(struct platform_device *pdev)
Daniel Mack1139b452012-07-30 09:29:12 +0200395{
396 return 0;
397}
398#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399
400/*-------------------------------------------------------------------------*/
401
402/* configure so an HC device and id are always provided */
403/* always called with process context; sleeping is OK */
404
405
406/**
407 * usb_hcd_pxa27x_probe - initialize pxa27x-based HCDs
408 * Context: !in_interrupt()
409 *
410 * Allocates basic resources for this USB host controller, and
411 * then invokes the start() method for the HCD associated with it
412 * through the hotplug entry's driver_data.
413 *
414 */
Richard Purdie81f280e2005-11-12 14:22:11 +0000415int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700416{
Eric Miao84bab732008-10-03 22:37:21 +0800417 int retval, irq;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418 struct usb_hcd *hcd;
Richard Purdie81f280e2005-11-12 14:22:11 +0000419 struct pxaohci_platform_data *inf;
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530420 struct pxa27x_ohci *pxa_ohci;
421 struct ohci_hcd *ohci;
Eric Miao84bab732008-10-03 22:37:21 +0800422 struct resource *r;
Eric Miao0c392ed2008-10-04 12:57:21 +0800423 struct clk *usb_clk;
Laurent Pinchartcecabe52014-04-16 18:00:11 +0200424 unsigned int i;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425
Daniel Mack1139b452012-07-30 09:29:12 +0200426 retval = ohci_pxa_of_init(pdev);
427 if (retval)
428 return retval;
429
Jingoo Hand4f09e22013-07-30 19:59:40 +0900430 inf = dev_get_platdata(&pdev->dev);
Richard Purdie81f280e2005-11-12 14:22:11 +0000431
432 if (!inf)
433 return -ENODEV;
434
Eric Miao84bab732008-10-03 22:37:21 +0800435 irq = platform_get_irq(pdev, 0);
436 if (irq < 0) {
437 pr_err("no resource of IORESOURCE_IRQ");
438 return -ENXIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700439 }
440
Jingoo Hanf1080e42013-12-11 16:26:21 +0900441 usb_clk = devm_clk_get(&pdev->dev, NULL);
eric miaoa8bcf412007-12-12 08:53:25 +0800442 if (IS_ERR(usb_clk))
443 return PTR_ERR(usb_clk);
444
Richard Purdie81f280e2005-11-12 14:22:11 +0000445 hcd = usb_create_hcd (driver, &pdev->dev, "pxa27x");
Jingoo Hanf1080e42013-12-11 16:26:21 +0900446 if (!hcd)
447 return -ENOMEM;
Eric Miao84bab732008-10-03 22:37:21 +0800448
449 r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
450 if (!r) {
451 pr_err("no resource of IORESOURCE_MEM");
452 retval = -ENXIO;
Jingoo Hanf1080e42013-12-11 16:26:21 +0900453 goto err;
Eric Miao84bab732008-10-03 22:37:21 +0800454 }
455
456 hcd->rsrc_start = r->start;
457 hcd->rsrc_len = resource_size(r);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700458
Jingoo Hanf1080e42013-12-11 16:26:21 +0900459 hcd->regs = devm_ioremap_resource(&pdev->dev, r);
460 if (IS_ERR(hcd->regs)) {
461 retval = PTR_ERR(hcd->regs);
462 goto err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700463 }
464
Eric Miao0c392ed2008-10-04 12:57:21 +0800465 /* initialize "struct pxa27x_ohci" */
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530466 pxa_ohci = to_pxa27x_ohci(hcd);
467 pxa_ohci->clk = usb_clk;
468 pxa_ohci->mmio_base = (void __iomem *)hcd->regs;
Eric Miao0c392ed2008-10-04 12:57:21 +0800469
Laurent Pinchartcecabe52014-04-16 18:00:11 +0200470 for (i = 0; i < 3; ++i) {
471 char name[6];
472
473 if (!(inf->flags & (ENABLE_PORT1 << i)))
474 continue;
475
476 sprintf(name, "vbus%u", i + 1);
477 pxa_ohci->vbus[i] = devm_regulator_get(&pdev->dev, name);
478 }
479
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530480 retval = pxa27x_start_hc(pxa_ohci, &pdev->dev);
481 if (retval < 0) {
Richard Purdie81f280e2005-11-12 14:22:11 +0000482 pr_debug("pxa27x_start_hc failed");
Jingoo Hanf1080e42013-12-11 16:26:21 +0900483 goto err;
Richard Purdie81f280e2005-11-12 14:22:11 +0000484 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700485
486 /* Select Power Management Mode */
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530487 pxa27x_ohci_select_pmm(pxa_ohci, inf->port_mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700488
Richard Purdie0c27c5d2006-06-08 22:44:07 +0100489 if (inf->power_budget)
490 hcd->power_budget = inf->power_budget;
491
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530492 /* The value of NDP in roothub_a is incorrect on this hardware */
493 ohci = hcd_to_ohci(hcd);
494 ohci->num_ports = 3;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700495
Yong Zhangb5dd18d2011-09-07 16:10:52 +0800496 retval = usb_add_hcd(hcd, irq, 0);
Peter Chen3c9740a2013-11-05 10:46:02 +0800497 if (retval == 0) {
498 device_wakeup_enable(hcd->self.controller);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700499 return retval;
Peter Chen3c9740a2013-11-05 10:46:02 +0800500 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700501
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530502 pxa27x_stop_hc(pxa_ohci, &pdev->dev);
Jingoo Hanf1080e42013-12-11 16:26:21 +0900503 err:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700504 usb_put_hcd(hcd);
505 return retval;
506}
507
508
509/* may be called without controller electrically present */
510/* may be called with controller, bus, and devices active */
511
512/**
513 * usb_hcd_pxa27x_remove - shutdown processing for pxa27x-based HCDs
514 * @dev: USB Host Controller being removed
515 * Context: !in_interrupt()
516 *
517 * Reverses the effect of usb_hcd_pxa27x_probe(), first invoking
518 * the HCD's stop() method. It is always called from a thread
519 * context, normally "rmmod", "apmd", or something similar.
520 *
521 */
Richard Purdie81f280e2005-11-12 14:22:11 +0000522void usb_hcd_pxa27x_remove (struct usb_hcd *hcd, struct platform_device *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700523{
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530524 struct pxa27x_ohci *pxa_ohci = to_pxa27x_ohci(hcd);
Laurent Pinchartcecabe52014-04-16 18:00:11 +0200525 unsigned int i;
Eric Miao0c392ed2008-10-04 12:57:21 +0800526
Linus Torvalds1da177e2005-04-16 15:20:36 -0700527 usb_remove_hcd(hcd);
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530528 pxa27x_stop_hc(pxa_ohci, &pdev->dev);
Laurent Pinchartcecabe52014-04-16 18:00:11 +0200529
530 for (i = 0; i < 3; ++i)
531 pxa27x_ohci_set_vbus_power(pxa_ohci, i, false);
532
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533 usb_put_hcd(hcd);
534}
535
536/*-------------------------------------------------------------------------*/
537
Russell King3ae5eae2005-11-09 22:32:44 +0000538static int ohci_hcd_pxa27x_drv_probe(struct platform_device *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700539{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700540 pr_debug ("In ohci_hcd_pxa27x_drv_probe");
541
542 if (usb_disabled())
543 return -ENODEV;
544
Richard Purdie81f280e2005-11-12 14:22:11 +0000545 return usb_hcd_pxa27x_probe(&ohci_pxa27x_hc_driver, pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700546}
547
Russell King3ae5eae2005-11-09 22:32:44 +0000548static int ohci_hcd_pxa27x_drv_remove(struct platform_device *pdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700549{
Russell King3ae5eae2005-11-09 22:32:44 +0000550 struct usb_hcd *hcd = platform_get_drvdata(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700551
552 usb_hcd_pxa27x_remove(hcd, pdev);
553 return 0;
554}
555
Mike Rapoportb7f3f592009-07-21 17:49:39 +0300556#ifdef CONFIG_PM
557static int ohci_hcd_pxa27x_drv_suspend(struct device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700558{
Mike Rapoportb7f3f592009-07-21 17:49:39 +0300559 struct usb_hcd *hcd = dev_get_drvdata(dev);
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530560 struct pxa27x_ohci *pxa_ohci = to_pxa27x_ohci(hcd);
561 struct ohci_hcd *ohci = hcd_to_ohci(hcd);
Manjunath Goudar4ceaa892013-10-04 09:58:15 +0530562 bool do_wakeup = device_may_wakeup(dev);
563 int ret;
564
Richard Purdie2e1dcc12005-11-12 14:22:14 +0000565
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530566 if (time_before(jiffies, ohci->next_statechange))
Richard Purdie2e1dcc12005-11-12 14:22:14 +0000567 msleep(5);
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530568 ohci->next_statechange = jiffies;
Richard Purdie2e1dcc12005-11-12 14:22:14 +0000569
Manjunath Goudar4ceaa892013-10-04 09:58:15 +0530570 ret = ohci_suspend(hcd, do_wakeup);
571 if (ret)
572 return ret;
573
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530574 pxa27x_stop_hc(pxa_ohci, dev);
Manjunath Goudar4ceaa892013-10-04 09:58:15 +0530575 return ret;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700576}
577
Mike Rapoportb7f3f592009-07-21 17:49:39 +0300578static int ohci_hcd_pxa27x_drv_resume(struct device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700579{
Mike Rapoportb7f3f592009-07-21 17:49:39 +0300580 struct usb_hcd *hcd = dev_get_drvdata(dev);
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530581 struct pxa27x_ohci *pxa_ohci = to_pxa27x_ohci(hcd);
Jingoo Hand4f09e22013-07-30 19:59:40 +0900582 struct pxaohci_platform_data *inf = dev_get_platdata(dev);
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530583 struct ohci_hcd *ohci = hcd_to_ohci(hcd);
Richard Purdie2e1dcc12005-11-12 14:22:14 +0000584 int status;
585
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530586 if (time_before(jiffies, ohci->next_statechange))
Richard Purdie2e1dcc12005-11-12 14:22:14 +0000587 msleep(5);
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530588 ohci->next_statechange = jiffies;
Richard Purdie2e1dcc12005-11-12 14:22:14 +0000589
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530590 status = pxa27x_start_hc(pxa_ohci, dev);
591 if (status < 0)
Richard Purdie2e1dcc12005-11-12 14:22:14 +0000592 return status;
593
Aric D. Blumera75d0482009-07-30 13:42:30 -0400594 /* Select Power Management Mode */
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530595 pxa27x_ohci_select_pmm(pxa_ohci, inf->port_mode);
Aric D. Blumera75d0482009-07-30 13:42:30 -0400596
Florian Fainellicfa49b42012-10-08 15:11:29 +0200597 ohci_resume(hcd, false);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700598 return 0;
599}
Mike Rapoportb7f3f592009-07-21 17:49:39 +0300600
Alexey Dobriyan47145212009-12-14 18:00:08 -0800601static const struct dev_pm_ops ohci_hcd_pxa27x_pm_ops = {
Mike Rapoportb7f3f592009-07-21 17:49:39 +0300602 .suspend = ohci_hcd_pxa27x_drv_suspend,
603 .resume = ohci_hcd_pxa27x_drv_resume,
604};
Richard Purdie2e1dcc12005-11-12 14:22:14 +0000605#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700606
Russell King3ae5eae2005-11-09 22:32:44 +0000607static struct platform_driver ohci_hcd_pxa27x_driver = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700608 .probe = ohci_hcd_pxa27x_drv_probe,
609 .remove = ohci_hcd_pxa27x_drv_remove,
David Brownelldd9048a2006-12-05 03:18:31 -0800610 .shutdown = usb_hcd_platform_shutdown,
Russell King3ae5eae2005-11-09 22:32:44 +0000611 .driver = {
612 .name = "pxa27x-ohci",
Kay Sieversf4fce612008-04-10 21:29:22 -0700613 .owner = THIS_MODULE,
Daniel Mack1139b452012-07-30 09:29:12 +0200614 .of_match_table = of_match_ptr(pxa_ohci_dt_ids),
Mike Rapoportb7f3f592009-07-21 17:49:39 +0300615#ifdef CONFIG_PM
616 .pm = &ohci_hcd_pxa27x_pm_ops,
617#endif
Russell King3ae5eae2005-11-09 22:32:44 +0000618 },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700619};
620
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530621static const struct ohci_driver_overrides pxa27x_overrides __initconst = {
622 .extra_priv_size = sizeof(struct pxa27x_ohci),
623};
624
625static int __init ohci_pxa27x_init(void)
626{
627 if (usb_disabled())
628 return -ENODEV;
629
630 pr_info("%s: " DRIVER_DESC "\n", hcd_name);
Laurent Pinchartcecabe52014-04-16 18:00:11 +0200631
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530632 ohci_init_driver(&ohci_pxa27x_hc_driver, &pxa27x_overrides);
Laurent Pinchartcecabe52014-04-16 18:00:11 +0200633 ohci_pxa27x_hc_driver.hub_control = pxa27x_ohci_hub_control;
634
Manjunath Goudarb8ad5c32013-09-21 16:38:46 +0530635 return platform_driver_register(&ohci_hcd_pxa27x_driver);
636}
637module_init(ohci_pxa27x_init);
638
639static void __exit ohci_pxa27x_cleanup(void)
640{
641 platform_driver_unregister(&ohci_hcd_pxa27x_driver);
642}
643module_exit(ohci_pxa27x_cleanup);
644
645MODULE_DESCRIPTION(DRIVER_DESC);
646MODULE_LICENSE("GPL");
647MODULE_ALIAS("platform:pxa27x-ohci");