OpenWrt – Blame information for rev 4

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Rev Author Line No. Line
4 office 1 From a2a97f0d2c07a772899ca09967547bea6c9124c5 Mon Sep 17 00:00:00 2001
2 From: Yangbo Lu <yangbo.lu@nxp.com>
3 Date: Wed, 17 Jan 2018 15:46:03 +0800
4 Subject: [PATCH 29/30] usb: support layerscape
5  
6 This is an integrated patch for layerscape usb support.
7  
8 Signed-off-by: yinbo.zhu <yinbo.zhu@nxp.com>
9 Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
10 Signed-off-by: Nikhil Badola <nikhil.badola@freescale.com>
11 Signed-off-by: Changming Huang <jerry.huang@nxp.com>
12 Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
13 Signed-off-by: Rajesh Bhagat <rajesh.bhagat@freescale.com>
14 Signed-off-by: Suresh Gupta <suresh.gupta@freescale.com>
15 Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com>
16 Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
17 ---
18 drivers/net/usb/cdc_ether.c | 8 +
19 drivers/net/usb/r8152.c | 6 +
20 drivers/usb/common/common.c | 50 ++++++
21 drivers/usb/core/hub.c | 8 +
22 drivers/usb/dwc3/core.c | 243 ++++++++++++++++++++++++++++-
23 drivers/usb/dwc3/core.h | 51 ++++++-
24 drivers/usb/dwc3/ep0.c | 4 +-
25 drivers/usb/dwc3/gadget.c | 7 +
26 drivers/usb/dwc3/host.c | 24 ++-
27 drivers/usb/gadget/udc/fsl_udc_core.c | 46 +++---
28 drivers/usb/gadget/udc/fsl_usb2_udc.h | 16 +-
29 drivers/usb/host/Kconfig | 2 +-
30 drivers/usb/host/ehci-fsl.c | 279 +++++++++++++++++++++++++++++++---
31 drivers/usb/host/ehci-fsl.h | 3 +
32 drivers/usb/host/ehci-hub.c | 4 +
33 drivers/usb/host/ehci.h | 9 ++
34 drivers/usb/host/fsl-mph-dr-of.c | 12 ++
35 drivers/usb/host/xhci-plat.c | 10 ++
36 drivers/usb/host/xhci-ring.c | 29 +++-
37 drivers/usb/host/xhci.c | 38 ++++-
38 drivers/usb/host/xhci.h | 5 +-
39 drivers/usb/phy/phy-fsl-usb.c | 59 +++++--
40 drivers/usb/phy/phy-fsl-usb.h | 8 +
41 include/linux/usb.h | 1 +
42 include/linux/usb/of.h | 2 +
43 25 files changed, 836 insertions(+), 88 deletions(-)
44  
45 --- a/drivers/net/usb/cdc_ether.c
46 +++ b/drivers/net/usb/cdc_ether.c
47 @@ -533,6 +533,7 @@ static const struct driver_info wwan_inf
48 #define LINKSYS_VENDOR_ID 0x13b1
49 #define NVIDIA_VENDOR_ID 0x0955
50 #define HP_VENDOR_ID 0x03f0
51 +#define TPLINK_VENDOR_ID 0x2357
52  
53 static const struct usb_device_id products[] = {
54 /* BLACKLIST !!
55 @@ -742,6 +743,13 @@ static const struct usb_device_id produc
56 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
57 .driver_info = 0,
58 },
59 +
60 + /* TP-LINK UE300 USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */
61 +{
62 + USB_DEVICE_AND_INTERFACE_INFO(TPLINK_VENDOR_ID, 0x0601, USB_CLASS_COMM,
63 + USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
64 + .driver_info = 0,
65 +},
66  
67 /* WHITELIST!!!
68 *
69 --- a/drivers/net/usb/r8152.c
70 +++ b/drivers/net/usb/r8152.c
71 @@ -521,6 +521,7 @@ enum rtl8152_flags {
72 #define VENDOR_ID_LENOVO 0x17ef
73 #define VENDOR_ID_LINKSYS 0x13b1
74 #define VENDOR_ID_NVIDIA 0x0955
75 +#define VENDOR_ID_TPLINK 0x2357
76  
77 #define MCU_TYPE_PLA 0x0100
78 #define MCU_TYPE_USB 0x0000
79 @@ -1817,6 +1818,10 @@ static int rx_bottom(struct r8152 *tp, i
80 unsigned int pkt_len;
81 struct sk_buff *skb;
82  
83 + /* limite the skb numbers for rx_queue */
84 + if (unlikely(skb_queue_len(&tp->rx_queue) >= 1000))
85 + break;
86 +
87 pkt_len = le32_to_cpu(rx_desc->opts1) & RX_LEN_MASK;
88 if (pkt_len < ETH_ZLEN)
89 break;
90 @@ -4510,6 +4515,7 @@ static struct usb_device_id rtl8152_tabl
91 {REALTEK_USB_DEVICE(VENDOR_ID_LENOVO, 0x304f)},
92 {REALTEK_USB_DEVICE(VENDOR_ID_LINKSYS, 0x0041)},
93 {REALTEK_USB_DEVICE(VENDOR_ID_NVIDIA, 0x09ff)},
94 + {REALTEK_USB_DEVICE(VENDOR_ID_TPLINK, 0x0601)},
95 {}
96 };
97  
98 --- a/drivers/usb/common/common.c
99 +++ b/drivers/usb/common/common.c
100 @@ -105,6 +105,56 @@ static const char *const usb_dr_modes[]
101 [USB_DR_MODE_OTG] = "otg",
102 };
103  
104 +/**
105 + * of_usb_get_dr_mode - Get dual role mode for given device_node
106 + * @np: Pointer to the given device_node
107 + *
108 + * The function gets phy interface string from property 'dr_mode',
109 + * and returns the correspondig enum usb_dr_mode
110 + */
111 +enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np)
112 +{
113 + const char *dr_mode;
114 + int err, i;
115 +
116 + err = of_property_read_string(np, "dr_mode", &dr_mode);
117 + if (err < 0)
118 + return USB_DR_MODE_UNKNOWN;
119 +
120 + for (i = 0; i < ARRAY_SIZE(usb_dr_modes); i++)
121 + if (!strcmp(dr_mode, usb_dr_modes[i]))
122 + return i;
123 +
124 + return USB_DR_MODE_UNKNOWN;
125 +}
126 +EXPORT_SYMBOL_GPL(of_usb_get_dr_mode);
127 +
128 +/**
129 + * of_usb_get_maximum_speed - Get maximum requested speed for a given USB
130 + * controller.
131 + * @np: Pointer to the given device_node
132 + *
133 + * The function gets the maximum speed string from property "maximum-speed",
134 + * and returns the corresponding enum usb_device_speed.
135 + */
136 +enum usb_device_speed of_usb_get_maximum_speed(struct device_node *np)
137 +{
138 + const char *maximum_speed;
139 + int err;
140 + int i;
141 +
142 + err = of_property_read_string(np, "maximum-speed", &maximum_speed);
143 + if (err < 0)
144 + return USB_SPEED_UNKNOWN;
145 +
146 + for (i = 0; i < ARRAY_SIZE(speed_names); i++)
147 + if (strcmp(maximum_speed, speed_names[i]) == 0)
148 + return i;
149 +
150 + return USB_SPEED_UNKNOWN;
151 +}
152 +EXPORT_SYMBOL_GPL(of_usb_get_maximum_speed);
153 +
154 static enum usb_dr_mode usb_get_dr_mode_from_string(const char *str)
155 {
156 int ret;
157 --- a/drivers/usb/core/hub.c
158 +++ b/drivers/usb/core/hub.c
159 @@ -4431,6 +4431,14 @@ hub_port_init(struct usb_hub *hub, struc
160 else
161 speed = usb_speed_string(udev->speed);
162  
163 +#if !defined(CONFIG_FSL_USB2_OTG) && !defined(CONFIG_FSL_USB2_OTG_MODULE)
164 +if (udev->speed != USB_SPEED_SUPER)
165 + dev_info(&udev->dev,
166 + "%s %s USB device number %d using %s\n",
167 + (udev->config) ? "reset" : "new", speed,
168 + devnum, udev->bus->controller->driver->name);
169 +#endif
170 +
171 if (udev->speed < USB_SPEED_SUPER)
172 dev_info(&udev->dev,
173 "%s %s USB device number %d using %s\n",
174 --- a/drivers/usb/dwc3/core.c
175 +++ b/drivers/usb/dwc3/core.c
176 @@ -58,6 +58,7 @@ static int dwc3_get_dr_mode(struct dwc3
177 enum usb_dr_mode mode;
178 struct device *dev = dwc->dev;
179 unsigned int hw_mode;
180 + struct device_node *node = dev->of_node;
181  
182 if (dwc->dr_mode == USB_DR_MODE_UNKNOWN)
183 dwc->dr_mode = USB_DR_MODE_OTG;
184 @@ -83,6 +84,24 @@ static int dwc3_get_dr_mode(struct dwc3
185 mode = USB_DR_MODE_HOST;
186 break;
187 default:
188 + /* Adjust Frame Length */
189 + if (dwc->configure_gfladj)
190 + dwc3_writel(dwc->regs, DWC3_GFLADJ, GFLADJ_30MHZ_REG_SEL |
191 + GFLADJ_30MHZ(GFLADJ_30MHZ_DEFAULT));
192 +
193 + /* Change burst beat and outstanding pipelined transfers requests */
194 + dwc3_writel(dwc->regs, DWC3_GSBUSCFG0,
195 + (dwc3_readl(dwc->regs, DWC3_GSBUSCFG0) & ~0xff) | 0xf);
196 + dwc3_writel(dwc->regs, DWC3_GSBUSCFG1,
197 + dwc3_readl(dwc->regs, DWC3_GSBUSCFG1) | 0xf00);
198 +
199 + /* Enable Snooping */
200 + if (node && of_dma_is_coherent(node)) {
201 + dwc3_writel(dwc->regs, DWC3_GSBUSCFG0,
202 + dwc3_readl(dwc->regs, DWC3_GSBUSCFG0) | 0x22220000);
203 + dev_dbg(dev, "enabled snooping for usb\n");
204 + }
205 +
206 if (IS_ENABLED(CONFIG_USB_DWC3_HOST))
207 mode = USB_DR_MODE_HOST;
208 else if (IS_ENABLED(CONFIG_USB_DWC3_GADGET))
209 @@ -227,8 +246,9 @@ static void dwc3_frame_length_adjustment
210  
211 reg = dwc3_readl(dwc->regs, DWC3_GFLADJ);
212 dft = reg & DWC3_GFLADJ_30MHZ_MASK;
213 - if (!dev_WARN_ONCE(dwc->dev, dft == dwc->fladj,
214 - "request value same as default, ignoring\n")) {
215 + if (dft == dwc->fladj) {
216 + dev_warn(dwc->dev, "request value same as default, ignoring\n");
217 + } else {
218 reg &= ~DWC3_GFLADJ_30MHZ_MASK;
219 reg |= DWC3_GFLADJ_30MHZ_SDBND_SEL | dwc->fladj;
220 dwc3_writel(dwc->regs, DWC3_GFLADJ, reg);
221 @@ -599,6 +619,99 @@ static int dwc3_phy_setup(struct dwc3 *d
222 return 0;
223 }
224  
225 +/* set global soc bus configuration registers */
226 +static void dwc3_set_soc_bus_cfg(struct dwc3 *dwc)
227 +{
228 + struct device *dev = dwc->dev;
229 + u32 *vals;
230 + u32 cfg;
231 + int ntype;
232 + int ret;
233 + int i;
234 +
235 + cfg = dwc3_readl(dwc->regs, DWC3_GSBUSCFG0);
236 +
237 + /*
238 + * Handle property "snps,incr-burst-type-adjustment".
239 + * Get the number of value from this property:
240 + * result <= 0, means this property is not supported.
241 + * result = 1, means INCRx burst mode supported.
242 + * result > 1, means undefined length burst mode supported.
243 + */
244 + ntype = device_property_read_u32_array(dev,
245 + "snps,incr-burst-type-adjustment", NULL, 0);
246 + if (ntype > 0) {
247 + vals = kcalloc(ntype, sizeof(u32), GFP_KERNEL);
248 + if (!vals) {
249 + dev_err(dev, "Error to get memory\n");
250 + return;
251 + }
252 + /* Get INCR burst type, and parse it */
253 + ret = device_property_read_u32_array(dev,
254 + "snps,incr-burst-type-adjustment", vals, ntype);
255 + if (ret) {
256 + dev_err(dev, "Error to get property\n");
257 + return;
258 + }
259 + *(dwc->incrx_type + 1) = vals[0];
260 + if (ntype > 1) {
261 + *dwc->incrx_type = 1;
262 + for (i = 1; i < ntype; i++) {
263 + if (vals[i] > *(dwc->incrx_type + 1))
264 + *(dwc->incrx_type + 1) = vals[i];
265 + }
266 + } else
267 + *dwc->incrx_type = 0;
268 +
269 + /* Enable Undefined Length INCR Burst and Enable INCRx Burst */
270 + cfg &= ~DWC3_GSBUSCFG0_INCRBRST_MASK;
271 + if (*dwc->incrx_type)
272 + cfg |= DWC3_GSBUSCFG0_INCRBRSTENA;
273 + switch (*(dwc->incrx_type + 1)) {
274 + case 256:
275 + cfg |= DWC3_GSBUSCFG0_INCR256BRSTENA;
276 + break;
277 + case 128:
278 + cfg |= DWC3_GSBUSCFG0_INCR128BRSTENA;
279 + break;
280 + case 64:
281 + cfg |= DWC3_GSBUSCFG0_INCR64BRSTENA;
282 + break;
283 + case 32:
284 + cfg |= DWC3_GSBUSCFG0_INCR32BRSTENA;
285 + break;
286 + case 16:
287 + cfg |= DWC3_GSBUSCFG0_INCR16BRSTENA;
288 + break;
289 + case 8:
290 + cfg |= DWC3_GSBUSCFG0_INCR8BRSTENA;
291 + break;
292 + case 4:
293 + cfg |= DWC3_GSBUSCFG0_INCR4BRSTENA;
294 + break;
295 + case 1:
296 + break;
297 + default:
298 + dev_err(dev, "Invalid property\n");
299 + break;
300 + }
301 + }
302 +
303 + /* Handle usb snooping */
304 + if (dwc->dma_snooping_quirk) {
305 + cfg &= ~DWC3_GSBUSCFG0_SNP_MASK;
306 + cfg |= (AXI3_CACHE_TYPE_SNP << DWC3_GSBUSCFG0_DATARD_SHIFT) |
307 + (AXI3_CACHE_TYPE_SNP << DWC3_GSBUSCFG0_DESCRD_SHIFT) |
308 + (AXI3_CACHE_TYPE_SNP << DWC3_GSBUSCFG0_DATAWR_SHIFT) |
309 + (AXI3_CACHE_TYPE_SNP << DWC3_GSBUSCFG0_DESCWR_SHIFT);
310 + }
311 +
312 + dwc3_writel(dwc->regs, DWC3_GSBUSCFG0, cfg);
313 +
314 +}
315 +
316 +
317 +
318 static void dwc3_core_exit(struct dwc3 *dwc)
319 {
320 dwc3_event_buffers_cleanup(dwc);
321 @@ -741,6 +854,8 @@ static int dwc3_core_init(struct dwc3 *d
322 if (ret)
323 goto err1;
324  
325 + dwc3_set_soc_bus_cfg(dwc);
326 +
327 /* Adjust Frame Length */
328 dwc3_frame_length_adjustment(dwc);
329  
330 @@ -939,11 +1054,117 @@ static void dwc3_core_exit_mode(struct d
331 }
332 }
333  
334 +static void dwc3_get_properties(struct dwc3 *dwc)
335 +{
336 + struct device *dev = dwc->dev;
337 + struct device_node *node = dev->of_node;
338 + u8 lpm_nyet_threshold;
339 + u8 tx_de_emphasis;
340 + u8 hird_threshold;
341 +
342 + /* default to highest possible threshold */
343 + lpm_nyet_threshold = 0xff;
344 +
345 + /* default to -3.5dB de-emphasis */
346 + tx_de_emphasis = 1;
347 +
348 + /*
349 + * default to assert utmi_sleep_n and use maximum allowed HIRD
350 + * threshold value of 0b1100
351 + */
352 + hird_threshold = 12;
353 +
354 + dwc->maximum_speed = usb_get_maximum_speed(dev);
355 + dwc->dr_mode = usb_get_dr_mode(dev);
356 + dwc->hsphy_mode = of_usb_get_phy_mode(dev->of_node);
357 +
358 + dwc->sysdev_is_parent = device_property_read_bool(dev,
359 + "linux,sysdev_is_parent");
360 + if (dwc->sysdev_is_parent)
361 + dwc->sysdev = dwc->dev->parent;
362 + else
363 + dwc->sysdev = dwc->dev;
364 +
365 + dwc->has_lpm_erratum = device_property_read_bool(dev,
366 + "snps,has-lpm-erratum");
367 + device_property_read_u8(dev, "snps,lpm-nyet-threshold",
368 + &lpm_nyet_threshold);
369 + dwc->is_utmi_l1_suspend = device_property_read_bool(dev,
370 + "snps,is-utmi-l1-suspend");
371 + device_property_read_u8(dev, "snps,hird-threshold",
372 + &hird_threshold);
373 + dwc->usb3_lpm_capable = device_property_read_bool(dev,
374 + "snps,usb3_lpm_capable");
375 + dwc->quirk_reverse_in_out = device_property_read_bool(dev,
376 + "snps,quirk_reverse_in_out");
377 + dwc->quirk_stop_transfer_in_block = device_property_read_bool(dev,
378 + "snps,quirk_stop_transfer_in_block");
379 + dwc->quirk_stop_ep_in_u1 = device_property_read_bool(dev,
380 + "snps,quirk_stop_ep_in_u1");
381 +
382 + dwc->needs_fifo_resize = of_property_read_bool(node, "tx-fifo-resize");
383 +
384 + dwc->configure_gfladj =
385 + of_property_read_bool(node, "configure-gfladj");
386 + dwc->dr_mode = usb_get_dr_mode(dev);
387 +
388 + dwc->disable_scramble_quirk = device_property_read_bool(dev,
389 + "snps,disable_scramble_quirk");
390 + dwc->u2exit_lfps_quirk = device_property_read_bool(dev,
391 + "snps,u2exit_lfps_quirk");
392 + dwc->u2ss_inp3_quirk = device_property_read_bool(dev,
393 + "snps,u2ss_inp3_quirk");
394 + dwc->req_p1p2p3_quirk = device_property_read_bool(dev,
395 + "snps,req_p1p2p3_quirk");
396 + dwc->del_p1p2p3_quirk = device_property_read_bool(dev,
397 + "snps,del_p1p2p3_quirk");
398 + dwc->del_phy_power_chg_quirk = device_property_read_bool(dev,
399 + "snps,del_phy_power_chg_quirk");
400 + dwc->lfps_filter_quirk = device_property_read_bool(dev,
401 + "snps,lfps_filter_quirk");
402 + dwc->rx_detect_poll_quirk = device_property_read_bool(dev,
403 + "snps,rx_detect_poll_quirk");
404 + dwc->dis_u3_susphy_quirk = device_property_read_bool(dev,
405 + "snps,dis_u3_susphy_quirk");
406 + dwc->dis_u2_susphy_quirk = device_property_read_bool(dev,
407 + "snps,dis_u2_susphy_quirk");
408 + dwc->dis_enblslpm_quirk = device_property_read_bool(dev,
409 + "snps,dis_enblslpm_quirk");
410 + dwc->dis_rxdet_inp3_quirk = device_property_read_bool(dev,
411 + "snps,dis_rxdet_inp3_quirk");
412 + dwc->dis_u2_freeclk_exists_quirk = device_property_read_bool(dev,
413 + "snps,dis-u2-freeclk-exists-quirk");
414 + dwc->dis_del_phy_power_chg_quirk = device_property_read_bool(dev,
415 + "snps,dis-del-phy-power-chg-quirk");
416 + dwc->dma_snooping_quirk = device_property_read_bool(dev,
417 + "snps,dma-snooping");
418 +
419 + dwc->tx_de_emphasis_quirk = device_property_read_bool(dev,
420 + "snps,tx_de_emphasis_quirk");
421 + dwc->disable_devinit_u1u2_quirk = device_property_read_bool(dev,
422 + "snps,disable_devinit_u1u2");
423 + device_property_read_u8(dev, "snps,tx_de_emphasis",
424 + &tx_de_emphasis);
425 + device_property_read_string(dev, "snps,hsphy_interface",
426 + &dwc->hsphy_interface);
427 + device_property_read_u32(dev, "snps,quirk-frame-length-adjustment",
428 + &dwc->fladj);
429 +
430 + dwc->lpm_nyet_threshold = lpm_nyet_threshold;
431 + dwc->tx_de_emphasis = tx_de_emphasis;
432 +
433 + dwc->hird_threshold = hird_threshold
434 + | (dwc->is_utmi_l1_suspend << 4);
435 +
436 + dwc->imod_interval = 0;
437 +}
438 +
439 #define DWC3_ALIGN_MASK (16 - 1)
440  
441 static int dwc3_probe(struct platform_device *pdev)
442 {
443 struct device *dev = &pdev->dev;
444 + struct device_node *node = dev->of_node;
445 struct resource *res;
446 struct dwc3 *dwc;
447 u8 lpm_nyet_threshold;
448 @@ -975,6 +1196,11 @@ static int dwc3_probe(struct platform_de
449 dwc->xhci_resources[0].flags = res->flags;
450 dwc->xhci_resources[0].name = res->name;
451  
452 + if (node) {
453 + dwc->configure_gfladj =
454 + of_property_read_bool(node, "configure-gfladj");
455 + }
456 +
457 res->start += DWC3_GLOBALS_REGS_START;
458  
459 /*
460 @@ -1017,6 +1243,12 @@ static int dwc3_probe(struct platform_de
461 dwc->usb3_lpm_capable = device_property_read_bool(dev,
462 "snps,usb3_lpm_capable");
463  
464 + dwc->needs_fifo_resize = of_property_read_bool(node, "tx-fifo-resize");
465 +
466 + dwc->configure_gfladj =
467 + of_property_read_bool(node, "configure-gfladj");
468 + dwc->dr_mode = of_usb_get_dr_mode(node);
469 +
470 dwc->disable_scramble_quirk = device_property_read_bool(dev,
471 "snps,disable_scramble_quirk");
472 dwc->u2exit_lfps_quirk = device_property_read_bool(dev,
473 @@ -1061,6 +1293,8 @@ static int dwc3_probe(struct platform_de
474 dwc->hird_threshold = hird_threshold
475 | (dwc->is_utmi_l1_suspend << 4);
476  
477 + dwc3_get_properties(dwc);
478 +
479 platform_set_drvdata(pdev, dwc);
480 dwc3_cache_hwparams(dwc);
481  
482 @@ -1084,6 +1318,11 @@ static int dwc3_probe(struct platform_de
483 if (ret < 0)
484 goto err1;
485  
486 + /* Adjust Frame Length */
487 + if (dwc->configure_gfladj)
488 + dwc3_writel(dwc->regs, DWC3_GFLADJ, GFLADJ_30MHZ_REG_SEL |
489 + GFLADJ_30MHZ(GFLADJ_30MHZ_DEFAULT));
490 +
491 pm_runtime_forbid(dev);
492  
493 ret = dwc3_alloc_event_buffers(dwc, DWC3_EVENT_BUFFERS_SIZE);
494 --- a/drivers/usb/dwc3/core.h
495 +++ b/drivers/usb/dwc3/core.h
496 @@ -26,6 +26,7 @@
497 #include <linux/dma-mapping.h>
498 #include <linux/mm.h>
499 #include <linux/debugfs.h>
500 +#include <linux/of_address.h>
501  
502 #include <linux/usb/ch9.h>
503 #include <linux/usb/gadget.h>
504 @@ -154,6 +155,32 @@
505  
506 /* Bit fields */
507  
508 +/* Global SoC Bus Configuration Register 0 */
509 +#define AXI3_CACHE_TYPE_AW 0x8 /* write allocate */
510 +#define AXI3_CACHE_TYPE_AR 0x4 /* read allocate */
511 +#define AXI3_CACHE_TYPE_SNP 0x2 /* cacheable */
512 +#define AXI3_CACHE_TYPE_BUF 0x1 /* bufferable */
513 +#define DWC3_GSBUSCFG0_DATARD_SHIFT 28
514 +#define DWC3_GSBUSCFG0_DESCRD_SHIFT 24
515 +#define DWC3_GSBUSCFG0_DATAWR_SHIFT 20
516 +#define DWC3_GSBUSCFG0_DESCWR_SHIFT 16
517 +#define DWC3_GSBUSCFG0_SNP_MASK 0xffff0000
518 +#define DWC3_GSBUSCFG0_DATABIGEND (1 << 11)
519 +#define DWC3_GSBUSCFG0_DESCBIGEND (1 << 10)
520 +#define DWC3_GSBUSCFG0_INCR256BRSTENA (1 << 7) /* INCR256 burst */
521 +#define DWC3_GSBUSCFG0_INCR128BRSTENA (1 << 6) /* INCR128 burst */
522 +#define DWC3_GSBUSCFG0_INCR64BRSTENA (1 << 5) /* INCR64 burst */
523 +#define DWC3_GSBUSCFG0_INCR32BRSTENA (1 << 4) /* INCR32 burst */
524 +#define DWC3_GSBUSCFG0_INCR16BRSTENA (1 << 3) /* INCR16 burst */
525 +#define DWC3_GSBUSCFG0_INCR8BRSTENA (1 << 2) /* INCR8 burst */
526 +#define DWC3_GSBUSCFG0_INCR4BRSTENA (1 << 1) /* INCR4 burst */
527 +#define DWC3_GSBUSCFG0_INCRBRSTENA (1 << 0) /* undefined length enable */
528 +#define DWC3_GSBUSCFG0_INCRBRST_MASK 0xff
529 +
530 +/* Global SoC Bus Configuration Register 1 */
531 +#define DWC3_GSBUSCFG1_1KPAGEENA (1 << 12) /* 1K page boundary enable */
532 +#define DWC3_GSBUSCFG1_PTRANSLIMIT_MASK 0xf00
533 +
534 /* Global Debug Queue/FIFO Space Available Register */
535 #define DWC3_GDBGFIFOSPACE_NUM(n) ((n) & 0x1f)
536 #define DWC3_GDBGFIFOSPACE_TYPE(n) (((n) << 5) & 0x1e0)
537 @@ -182,7 +209,6 @@
538 #define DWC3_GCTL_CLK_PIPE (1)
539 #define DWC3_GCTL_CLK_PIPEHALF (2)
540 #define DWC3_GCTL_CLK_MASK (3)
541 -
542 #define DWC3_GCTL_PRTCAP(n) (((n) & (3 << 12)) >> 12)
543 #define DWC3_GCTL_PRTCAPDIR(n) ((n) << 12)
544 #define DWC3_GCTL_PRTCAP_HOST 1
545 @@ -294,6 +320,10 @@
546 /* Global Frame Length Adjustment Register */
547 #define DWC3_GFLADJ_30MHZ_SDBND_SEL (1 << 7)
548 #define DWC3_GFLADJ_30MHZ_MASK 0x3f
549 +#define GFLADJ_30MHZ_REG_SEL (1 << 7)
550 +#define GFLADJ_30MHZ(n) ((n) & 0x3f)
551 +#define GFLADJ_30MHZ_DEFAULT 0x20
552 +
553  
554 /* Global User Control Register 2 */
555 #define DWC3_GUCTL2_RST_ACTBITLATER (1 << 14)
556 @@ -758,6 +788,7 @@ struct dwc3_scratchpad_array {
557 * @regs: base address for our registers
558 * @regs_size: address space size
559 * @fladj: frame length adjustment
560 + * @incrx_type: INCR burst type adjustment
561 * @irq_gadget: peripheral controller's IRQ number
562 * @nr_scratch: number of scratch buffers
563 * @u1u2: only used on revisions <1.83a for workaround
564 @@ -834,6 +865,7 @@ struct dwc3_scratchpad_array {
565 * 1 - -3.5dB de-emphasis
566 * 2 - No de-emphasis
567 * 3 - Reserved
568 + * @disable_devinit_u1u2_quirk: disable device-initiated U1/U2 request.
569 */
570 struct dwc3 {
571 struct usb_ctrlrequest *ctrl_req;
572 @@ -852,6 +884,7 @@ struct dwc3 {
573 spinlock_t lock;
574  
575 struct device *dev;
576 + struct device *sysdev;
577  
578 struct platform_device *xhci;
579 struct resource xhci_resources[DWC3_XHCI_RESOURCES_NUM];
580 @@ -877,6 +910,12 @@ struct dwc3 {
581 enum usb_phy_interface hsphy_mode;
582  
583 u32 fladj;
584 + /*
585 + * For INCR burst type.
586 + * First field: for undefined length INCR burst type enable.
587 + * Second field: for INCRx burst type enable
588 + */
589 + u32 incrx_type[2];
590 u32 irq_gadget;
591 u32 nr_scratch;
592 u32 u1u2;
593 @@ -953,9 +992,12 @@ struct dwc3 {
594 unsigned ep0_bounced:1;
595 unsigned ep0_expect_in:1;
596 unsigned has_hibernation:1;
597 + unsigned sysdev_is_parent:1;
598 unsigned has_lpm_erratum:1;
599 unsigned is_utmi_l1_suspend:1;
600 unsigned is_fpga:1;
601 + unsigned needs_fifo_resize:1;
602 + unsigned configure_gfladj:1;
603 unsigned pending_events:1;
604 unsigned pullups_connected:1;
605 unsigned setup_packet_pending:1;
606 @@ -976,9 +1018,16 @@ struct dwc3 {
607 unsigned dis_rxdet_inp3_quirk:1;
608 unsigned dis_u2_freeclk_exists_quirk:1;
609 unsigned dis_del_phy_power_chg_quirk:1;
610 + unsigned dma_snooping_quirk:1;
611  
612 unsigned tx_de_emphasis_quirk:1;
613 unsigned tx_de_emphasis:2;
614 + unsigned disable_devinit_u1u2_quirk:1;
615 + unsigned quirk_reverse_in_out:1;
616 + unsigned quirk_stop_transfer_in_block:1;
617 + unsigned quirk_stop_ep_in_u1:1;
618 +
619 + u16 imod_interval;
620 };
621  
622 /* -------------------------------------------------------------------------- */
623 --- a/drivers/usb/dwc3/ep0.c
624 +++ b/drivers/usb/dwc3/ep0.c
625 @@ -360,9 +360,9 @@ static int dwc3_ep0_handle_status(struct
626 if ((dwc->speed == DWC3_DSTS_SUPERSPEED) ||
627 (dwc->speed == DWC3_DSTS_SUPERSPEED_PLUS)) {
628 reg = dwc3_readl(dwc->regs, DWC3_DCTL);
629 - if (reg & DWC3_DCTL_INITU1ENA)
630 + if ((reg & DWC3_DCTL_INITU1ENA) && !dwc->disable_devinit_u1u2_quirk)
631 usb_status |= 1 << USB_DEV_STAT_U1_ENABLED;
632 - if (reg & DWC3_DCTL_INITU2ENA)
633 + if ((reg & DWC3_DCTL_INITU2ENA) && !dwc->disable_devinit_u1u2_quirk)
634 usb_status |= 1 << USB_DEV_STAT_U2_ENABLED;
635 }
636  
637 --- a/drivers/usb/dwc3/gadget.c
638 +++ b/drivers/usb/dwc3/gadget.c
639 @@ -2932,6 +2932,7 @@ static irqreturn_t dwc3_interrupt(int ir
640 int dwc3_gadget_init(struct dwc3 *dwc)
641 {
642 int ret, irq;
643 + u32 reg;
644 struct platform_device *dwc3_pdev = to_platform_device(dwc->dev);
645  
646 irq = platform_get_irq_byname(dwc3_pdev, "peripheral");
647 @@ -3046,6 +3047,12 @@ int dwc3_gadget_init(struct dwc3 *dwc)
648 goto err5;
649 }
650  
651 + if (dwc->disable_devinit_u1u2_quirk) {
652 + reg = dwc3_readl(dwc->regs, DWC3_DCTL);
653 + reg &= ~(DWC3_DCTL_INITU1ENA | DWC3_DCTL_INITU2ENA);
654 + dwc3_writel(dwc->regs, DWC3_DCTL, reg);
655 + }
656 +
657 return 0;
658  
659 err5:
660 --- a/drivers/usb/dwc3/host.c
661 +++ b/drivers/usb/dwc3/host.c
662 @@ -17,6 +17,8 @@
663  
664 #include <linux/platform_device.h>
665  
666 +#include <linux/of_device.h>
667 +
668 #include "core.h"
669  
670 int dwc3_host_init(struct dwc3 *dwc)
671 @@ -73,12 +75,21 @@ int dwc3_host_init(struct dwc3 *dwc)
672 return -ENOMEM;
673 }
674  
675 - dma_set_coherent_mask(&xhci->dev, dwc->dev->coherent_dma_mask);
676 + if (IS_ENABLED(CONFIG_OF) && dwc->dev->of_node)
677 + of_dma_configure(&xhci->dev, dwc->dev->of_node);
678 + else
679 + dma_set_coherent_mask(&xhci->dev, dwc->dev->coherent_dma_mask);
680  
681 - xhci->dev.parent = dwc->dev;
682 + xhci->dev.parent = dwc->dev;
683 xhci->dev.dma_mask = dwc->dev->dma_mask;
684 xhci->dev.dma_parms = dwc->dev->dma_parms;
685  
686 + /* set DMA operations */
687 + if (dwc->dev->of_node && of_dma_is_coherent(dwc->dev->of_node)) {
688 + xhci->dev.archdata.dma_ops = dwc->dev->archdata.dma_ops;
689 + dev_dbg(dwc->dev, "set dma_ops for usb\n");
690 + }
691 +
692 dwc->xhci = xhci;
693  
694 ret = platform_device_add_resources(xhci, dwc->xhci_resources,
695 @@ -90,6 +101,15 @@ int dwc3_host_init(struct dwc3 *dwc)
696  
697 memset(props, 0, sizeof(struct property_entry) * ARRAY_SIZE(props));
698  
699 + if (dwc->quirk_reverse_in_out)
700 + props[prop_idx++].name = "quirk-reverse-in-out";
701 +
702 + if (dwc->quirk_stop_transfer_in_block)
703 + props[prop_idx++].name = "quirk-stop-transfer-in-block";
704 +
705 + if (dwc->quirk_stop_ep_in_u1)
706 + props[prop_idx++].name = "quirk-stop-ep-in-u1";
707 +
708 if (dwc->usb3_lpm_capable)
709 props[prop_idx++].name = "usb3-lpm-capable";
710  
711 --- a/drivers/usb/gadget/udc/fsl_udc_core.c
712 +++ b/drivers/usb/gadget/udc/fsl_udc_core.c
713 @@ -198,7 +198,11 @@ __acquires(ep->udc->lock)
714  
715 spin_unlock(&ep->udc->lock);
716  
717 - usb_gadget_giveback_request(&ep->ep, &req->req);
718 + /* this complete() should a func implemented by gadget layer,
719 + * eg fsg->bulk_in_complete()
720 + */
721 + if (req->req.complete)
722 + usb_gadget_giveback_request(&ep->ep, &req->req);
723  
724 spin_lock(&ep->udc->lock);
725 ep->stopped = stopped;
726 @@ -245,10 +249,10 @@ static int dr_controller_setup(struct fs
727 if (udc->pdata->have_sysif_regs) {
728 if (udc->pdata->controller_ver) {
729 /* controller version 1.6 or above */
730 - ctrl = __raw_readl(&usb_sys_regs->control);
731 + ctrl = ioread32be(&usb_sys_regs->control);
732 ctrl &= ~USB_CTRL_UTMI_PHY_EN;
733 ctrl |= USB_CTRL_USB_EN;
734 - __raw_writel(ctrl, &usb_sys_regs->control);
735 + iowrite32be(ctrl, &usb_sys_regs->control);
736 }
737 }
738 portctrl |= PORTSCX_PTS_ULPI;
739 @@ -257,13 +261,14 @@ static int dr_controller_setup(struct fs
740 portctrl |= PORTSCX_PTW_16BIT;
741 /* fall through */
742 case FSL_USB2_PHY_UTMI:
743 + case FSL_USB2_PHY_UTMI_DUAL:
744 if (udc->pdata->have_sysif_regs) {
745 if (udc->pdata->controller_ver) {
746 /* controller version 1.6 or above */
747 - ctrl = __raw_readl(&usb_sys_regs->control);
748 + ctrl = ioread32be(&usb_sys_regs->control);
749 ctrl |= (USB_CTRL_UTMI_PHY_EN |
750 USB_CTRL_USB_EN);
751 - __raw_writel(ctrl, &usb_sys_regs->control);
752 + iowrite32be(ctrl, &usb_sys_regs->control);
753 mdelay(FSL_UTMI_PHY_DLY); /* Delay for UTMI
754 PHY CLK to become stable - 10ms*/
755 }
756 @@ -329,22 +334,22 @@ static int dr_controller_setup(struct fs
757 /* Config control enable i/o output, cpu endian register */
758 #ifndef CONFIG_ARCH_MXC
759 if (udc->pdata->have_sysif_regs) {
760 - ctrl = __raw_readl(&usb_sys_regs->control);
761 + ctrl = ioread32be(&usb_sys_regs->control);
762 ctrl |= USB_CTRL_IOENB;
763 - __raw_writel(ctrl, &usb_sys_regs->control);
764 + iowrite32be(ctrl, &usb_sys_regs->control);
765 }
766 #endif
767  
768 -#if defined(CONFIG_PPC32) && !defined(CONFIG_NOT_COHERENT_CACHE)
769 +#if !defined(CONFIG_NOT_COHERENT_CACHE)
770 /* Turn on cache snooping hardware, since some PowerPC platforms
771 * wholly rely on hardware to deal with cache coherent. */
772  
773 if (udc->pdata->have_sysif_regs) {
774 /* Setup Snooping for all the 4GB space */
775 tmp = SNOOP_SIZE_2GB; /* starts from 0x0, size 2G */
776 - __raw_writel(tmp, &usb_sys_regs->snoop1);
777 + iowrite32be(tmp, &usb_sys_regs->snoop1);
778 tmp |= 0x80000000; /* starts from 0x8000000, size 2G */
779 - __raw_writel(tmp, &usb_sys_regs->snoop2);
780 + iowrite32be(tmp, &usb_sys_regs->snoop2);
781 }
782 #endif
783  
784 @@ -1057,7 +1062,7 @@ static int fsl_ep_fifo_status(struct usb
785 struct ep_queue_head *qh;
786  
787 ep = container_of(_ep, struct fsl_ep, ep);
788 - if (!_ep || (!ep->ep.desc && ep_index(ep) != 0))
789 + if (!_ep || !ep->ep.desc || (ep_index(ep) == 0))
790 return -ENODEV;
791  
792 udc = (struct fsl_udc *)ep->udc;
793 @@ -1599,14 +1604,13 @@ static int process_ep_req(struct fsl_udc
794 struct fsl_req *curr_req)
795 {
796 struct ep_td_struct *curr_td;
797 - int td_complete, actual, remaining_length, j, tmp;
798 + int actual, remaining_length, j, tmp;
799 int status = 0;
800 int errors = 0;
801 struct ep_queue_head *curr_qh = &udc->ep_qh[pipe];
802 int direction = pipe % 2;
803  
804 curr_td = curr_req->head;
805 - td_complete = 0;
806 actual = curr_req->req.length;
807  
808 for (j = 0; j < curr_req->dtd_count; j++) {
809 @@ -1651,11 +1655,9 @@ static int process_ep_req(struct fsl_udc
810 status = -EPROTO;
811 break;
812 } else {
813 - td_complete++;
814 break;
815 }
816 } else {
817 - td_complete++;
818 VDBG("dTD transmitted successful");
819 }
820  
821 @@ -1698,7 +1700,7 @@ static void dtd_complete_irq(struct fsl_
822 curr_ep = get_ep_by_pipe(udc, i);
823  
824 /* If the ep is configured */
825 - if (!curr_ep->ep.name) {
826 + if (strncmp(curr_ep->name, "ep", 2)) {
827 WARNING("Invalid EP?");
828 continue;
829 }
830 @@ -2420,10 +2422,12 @@ static int fsl_udc_probe(struct platform
831 usb_sys_regs = (void *)dr_regs + USB_DR_SYS_OFFSET;
832 #endif
833  
834 +#ifdef CONFIG_ARCH_MXC
835 /* Initialize USB clocks */
836 ret = fsl_udc_clk_init(pdev);
837 if (ret < 0)
838 goto err_iounmap_noclk;
839 +#endif
840  
841 /* Read Device Controller Capability Parameters register */
842 dccparams = fsl_readl(&dr_regs->dccparams);
843 @@ -2463,9 +2467,11 @@ static int fsl_udc_probe(struct platform
844 dr_controller_setup(udc_controller);
845 }
846  
847 +#ifdef CONFIG_ARCH_MXC
848 ret = fsl_udc_clk_finalize(pdev);
849 if (ret)
850 goto err_free_irq;
851 +#endif
852  
853 /* Setup gadget structure */
854 udc_controller->gadget.ops = &fsl_gadget_ops;
855 @@ -2478,6 +2484,7 @@ static int fsl_udc_probe(struct platform
856 /* Setup gadget.dev and register with kernel */
857 dev_set_name(&udc_controller->gadget.dev, "gadget");
858 udc_controller->gadget.dev.of_node = pdev->dev.of_node;
859 + set_dma_ops(&udc_controller->gadget.dev, pdev->dev.archdata.dma_ops);
860  
861 if (!IS_ERR_OR_NULL(udc_controller->transceiver))
862 udc_controller->gadget.is_otg = 1;
863 @@ -2529,7 +2536,9 @@ err_free_irq:
864 err_iounmap:
865 if (pdata->exit)
866 pdata->exit(pdev);
867 +#ifdef CONFIG_ARCH_MXC
868 fsl_udc_clk_release();
869 +#endif
870 err_iounmap_noclk:
871 iounmap(dr_regs);
872 err_release_mem_region:
873 @@ -2557,8 +2566,9 @@ static int fsl_udc_remove(struct platfor
874 udc_controller->done = &done;
875 usb_del_gadget_udc(&udc_controller->gadget);
876  
877 +#ifdef CONFIG_ARCH_MXC
878 fsl_udc_clk_release();
879 -
880 +#endif
881 /* DR has been stopped in usb_gadget_unregister_driver() */
882 remove_proc_file();
883  
884 @@ -2570,7 +2580,7 @@ static int fsl_udc_remove(struct platfor
885 dma_pool_destroy(udc_controller->td_pool);
886 free_irq(udc_controller->irq, udc_controller);
887 iounmap(dr_regs);
888 - if (pdata->operating_mode == FSL_USB2_DR_DEVICE)
889 + if (res && (pdata->operating_mode == FSL_USB2_DR_DEVICE))
890 release_mem_region(res->start, resource_size(res));
891  
892 /* free udc --wait for the release() finished */
893 --- a/drivers/usb/gadget/udc/fsl_usb2_udc.h
894 +++ b/drivers/usb/gadget/udc/fsl_usb2_udc.h
895 @@ -20,6 +20,10 @@
896 #define USB_MAX_CTRL_PAYLOAD 64
897 #define USB_DR_SYS_OFFSET 0x400
898  
899 +#ifdef CONFIG_SOC_LS1021A
900 +#undef CONFIG_ARCH_MXC
901 +#endif
902 +
903 /* USB DR device mode registers (Little Endian) */
904 struct usb_dr_device {
905 /* Capability register */
906 @@ -597,18 +601,6 @@ struct platform_device;
907 int fsl_udc_clk_init(struct platform_device *pdev);
908 int fsl_udc_clk_finalize(struct platform_device *pdev);
909 void fsl_udc_clk_release(void);
910 -#else
911 -static inline int fsl_udc_clk_init(struct platform_device *pdev)
912 -{
913 - return 0;
914 -}
915 -static inline int fsl_udc_clk_finalize(struct platform_device *pdev)
916 -{
917 - return 0;
918 -}
919 -static inline void fsl_udc_clk_release(void)
920 -{
921 -}
922 #endif
923  
924 #endif
925 --- a/drivers/usb/host/Kconfig
926 +++ b/drivers/usb/host/Kconfig
927 @@ -165,7 +165,7 @@ config XPS_USB_HCD_XILINX
928  
929 config USB_EHCI_FSL
930 tristate "Support for Freescale PPC on-chip EHCI USB controller"
931 - depends on FSL_SOC
932 + depends on USB_EHCI_HCD
933 select USB_EHCI_ROOT_HUB_TT
934 ---help---
935 Variation of ARC USB block used in some Freescale chips.
936 --- a/drivers/usb/host/ehci-fsl.c
937 +++ b/drivers/usb/host/ehci-fsl.c
938 @@ -36,15 +36,127 @@
939 #include <linux/platform_device.h>
940 #include <linux/fsl_devices.h>
941 #include <linux/of_platform.h>
942 +#include <linux/io.h>
943 +
944 +#ifdef CONFIG_PPC
945 +#include <asm/fsl_pm.h>
946 +#include <linux/suspend.h>
947 +#endif
948  
949 #include "ehci.h"
950 #include "ehci-fsl.h"
951  
952 +#define FSL_USB_PHY_ADDR 0xffe214000
953 +
954 +struct ccsr_usb_port_ctrl {
955 + u32 ctrl;
956 + u32 drvvbuscfg;
957 + u32 pwrfltcfg;
958 + u32 sts;
959 + u8 res_14[0xc];
960 + u32 bistcfg;
961 + u32 biststs;
962 + u32 abistcfg;
963 + u32 abiststs;
964 + u8 res_30[0x10];
965 + u32 xcvrprg;
966 + u32 anaprg;
967 + u32 anadrv;
968 + u32 anasts;
969 +};
970 +
971 +struct ccsr_usb_phy {
972 + u32 id;
973 + struct ccsr_usb_port_ctrl port1;
974 + u8 res_50[0xc];
975 + u32 tvr;
976 + u32 pllprg[4];
977 + u8 res_70[0x4];
978 + u32 anaccfg;
979 + u32 dbg;
980 + u8 res_7c[0x4];
981 + struct ccsr_usb_port_ctrl port2;
982 + u8 res_dc[0x334];
983 +};
984 +
985 #define DRIVER_DESC "Freescale EHCI Host controller driver"
986 #define DRV_NAME "ehci-fsl"
987  
988 static struct hc_driver __read_mostly fsl_ehci_hc_driver;
989  
990 +struct ehci_fsl {
991 + struct ehci_hcd ehci;
992 +
993 +#ifdef CONFIG_PM
994 +struct ehci_regs saved_regs;
995 +struct ccsr_usb_phy saved_phy_regs;
996 +/* Saved USB PHY settings, need to restore after deep sleep. */
997 +u32 usb_ctrl;
998 +#endif
999 + /*
1000 + * store current hcd state for otg;
1001 + * have_hcd is true when host drv al already part of otg framework,
1002 + * otherwise false;
1003 + * hcd_add is true when otg framework wants to add host
1004 + * drv as part of otg;flase when it wants to remove it
1005 + */
1006 +unsigned have_hcd:1;
1007 +unsigned hcd_add:1;
1008 +};
1009 +
1010 +static struct ehci_fsl *hcd_to_ehci_fsl(struct usb_hcd *hcd)
1011 +{
1012 +struct ehci_hcd *ehci = hcd_to_ehci(hcd);
1013 +
1014 +return container_of(ehci, struct ehci_fsl, ehci);
1015 +}
1016 +
1017 +#if defined(CONFIG_FSL_USB2_OTG) || defined(CONFIG_FSL_USB2_OTG_MODULE)
1018 +static void do_change_hcd(struct work_struct *work)
1019 +{
1020 +struct ehci_hcd *ehci = container_of(work, struct ehci_hcd,
1021 + change_hcd_work);
1022 +struct usb_hcd *hcd = ehci_to_hcd(ehci);
1023 +struct ehci_fsl *ehci_fsl = hcd_to_ehci_fsl(hcd);
1024 +void __iomem *non_ehci = hcd->regs;
1025 +int retval;
1026 +
1027 + if (ehci_fsl->hcd_add && !ehci_fsl->have_hcd) {
1028 + writel(USBMODE_CM_HOST, non_ehci + FSL_SOC_USB_USBMODE);
1029 + /* host, gadget and otg share same int line */
1030 + retval = usb_add_hcd(hcd, hcd->irq, IRQF_SHARED);
1031 + if (retval == 0)
1032 + ehci_fsl->have_hcd = 1;
1033 + } else if (!ehci_fsl->hcd_add && ehci_fsl->have_hcd) {
1034 + usb_remove_hcd(hcd);
1035 + ehci_fsl->have_hcd = 0;
1036 + }
1037 +}
1038 +#endif
1039 +
1040 +#if defined(CONFIG_FSL_USB2_OTG) || defined(CONFIG_FSL_USB2_OTG_MODULE)
1041 +static void do_change_hcd(struct work_struct *work)
1042 +{
1043 + struct ehci_hcd *ehci = container_of(work, struct ehci_hcd,
1044 + change_hcd_work);
1045 + struct usb_hcd *hcd = ehci_to_hcd(ehci);
1046 + struct ehci_fsl *ehci_fsl = hcd_to_ehci_fsl(hcd);
1047 + void __iomem *non_ehci = hcd->regs;
1048 + int retval;
1049 +
1050 + if (ehci_fsl->hcd_add && !ehci_fsl->have_hcd) {
1051 + writel(USBMODE_CM_HOST, non_ehci + FSL_SOC_USB_USBMODE);
1052 + /* host, gadget and otg share same int line */
1053 + retval = usb_add_hcd(hcd, hcd->irq, IRQF_SHARED);
1054 + if (retval == 0)
1055 + ehci_fsl->have_hcd = 1;
1056 + } else if (!ehci_fsl->hcd_add && ehci_fsl->have_hcd) {
1057 + usb_remove_hcd(hcd);
1058 + ehci_fsl->have_hcd = 0;
1059 + }
1060 +}
1061 +#endif
1062 +
1063 /* configure so an HC device and id are always provided */
1064 /* always called with process context; sleeping is OK */
1065  
1066 @@ -131,6 +243,12 @@ static int fsl_ehci_drv_probe(struct pla
1067 clrsetbits_be32(hcd->regs + FSL_SOC_USB_CTRL,
1068 CONTROL_REGISTER_W1C_MASK, 0x4);
1069  
1070 + /* Set USB_EN bit to select ULPI phy for USB controller version 2.5 */
1071 + if (pdata->controller_ver == FSL_USB_VER_2_5 &&
1072 + pdata->phy_mode == FSL_USB2_PHY_ULPI)
1073 + iowrite32be(USB_CTRL_USB_EN, hcd->regs + FSL_SOC_USB_CTRL);
1074 +
1075 +
1076 /*
1077 * Enable UTMI phy and program PTS field in UTMI mode before asserting
1078 * controller reset for USB Controller version 2.5
1079 @@ -143,16 +261,20 @@ static int fsl_ehci_drv_probe(struct pla
1080  
1081 /* Don't need to set host mode here. It will be done by tdi_reset() */
1082  
1083 - retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
1084 + retval = usb_add_hcd(hcd, irq, IRQF_SHARED | IRQF_NO_SUSPEND);
1085 if (retval != 0)
1086 goto err2;
1087 device_wakeup_enable(hcd->self.controller);
1088  
1089 -#ifdef CONFIG_USB_OTG
1090 +#if defined(CONFIG_FSL_USB2_OTG) || defined(CONFIG_FSL_USB2_OTG_MODULE)
1091 if (pdata->operating_mode == FSL_USB2_DR_OTG) {
1092 struct ehci_hcd *ehci = hcd_to_ehci(hcd);
1093 + struct ehci_fsl *ehci_fsl = hcd_to_ehci_fsl(hcd);
1094  
1095 hcd->usb_phy = usb_get_phy(USB_PHY_TYPE_USB2);
1096 +
1097 + INIT_WORK(&ehci->change_hcd_work, do_change_hcd);
1098 +
1099 dev_dbg(&pdev->dev, "hcd=0x%p ehci=0x%p, phy=0x%p\n",
1100 hcd, ehci, hcd->usb_phy);
1101  
1102 @@ -168,6 +290,11 @@ static int fsl_ehci_drv_probe(struct pla
1103 retval = -ENODEV;
1104 goto err2;
1105 }
1106 +
1107 + ehci_fsl->have_hcd = 1;
1108 + } else {
1109 + dev_err(&pdev->dev, "wrong operating mode\n");
1110 + return -ENODEV;
1111 }
1112 #endif
1113 return retval;
1114 @@ -181,6 +308,17 @@ static int fsl_ehci_drv_probe(struct pla
1115 return retval;
1116 }
1117  
1118 +static bool usb_phy_clk_valid(struct usb_hcd *hcd)
1119 +{
1120 + void __iomem *non_ehci = hcd->regs;
1121 + bool ret = true;
1122 +
1123 + if (!(ioread32be(non_ehci + FSL_SOC_USB_CTRL) & PHY_CLK_VALID))
1124 + ret = false;
1125 +
1126 + return ret;
1127 +}
1128 +
1129 static int ehci_fsl_setup_phy(struct usb_hcd *hcd,
1130 enum fsl_usb2_phy_modes phy_mode,
1131 unsigned int port_offset)
1132 @@ -219,6 +357,21 @@ static int ehci_fsl_setup_phy(struct usb
1133 /* fall through */
1134 case FSL_USB2_PHY_UTMI:
1135 case FSL_USB2_PHY_UTMI_DUAL:
1136 + if (pdata->has_fsl_erratum_a006918) {
1137 + pr_warn("fsl-ehci: USB PHY clock invalid\n");
1138 + return -EINVAL;
1139 + }
1140 +
1141 + /* PHY_CLK_VALID bit is de-featured from all controller
1142 + * versions below 2.4 and is to be checked only for
1143 + * internal UTMI phy
1144 + */
1145 + if (pdata->controller_ver > FSL_USB_VER_2_4 &&
1146 + pdata->have_sysif_regs && !usb_phy_clk_valid(hcd)) {
1147 + pr_err("fsl-ehci: USB PHY clock invalid\n");
1148 + return -EINVAL;
1149 + }
1150 +
1151 if (pdata->have_sysif_regs && pdata->controller_ver) {
1152 /* controller version 1.6 or above */
1153 clrsetbits_be32(non_ehci + FSL_SOC_USB_CTRL,
1154 @@ -286,20 +439,18 @@ static int ehci_fsl_usb_setup(struct ehc
1155 if (pdata->has_fsl_erratum_a005275 == 1)
1156 ehci->has_fsl_hs_errata = 1;
1157  
1158 + if (pdata->has_fsl_erratum_a005697 == 1)
1159 + ehci->has_fsl_susp_errata = 1;
1160 +
1161 if ((pdata->operating_mode == FSL_USB2_DR_HOST) ||
1162 (pdata->operating_mode == FSL_USB2_DR_OTG))
1163 if (ehci_fsl_setup_phy(hcd, pdata->phy_mode, 0))
1164 return -EINVAL;
1165  
1166 if (pdata->operating_mode == FSL_USB2_MPH_HOST) {
1167 - unsigned int chip, rev, svr;
1168 -
1169 - svr = mfspr(SPRN_SVR);
1170 - chip = svr >> 16;
1171 - rev = (svr >> 4) & 0xf;
1172  
1173 /* Deal with USB Erratum #14 on MPC834x Rev 1.0 & 1.1 chips */
1174 - if ((rev == 1) && (chip >= 0x8050) && (chip <= 0x8055))
1175 + if (pdata->has_fsl_erratum_14 == 1)
1176 ehci->has_fsl_port_bug = 1;
1177  
1178 if (pdata->port_enables & FSL_USB2_PORT0_ENABLED)
1179 @@ -379,16 +530,57 @@ static int ehci_fsl_setup(struct usb_hcd
1180 return retval;
1181 }
1182  
1183 -struct ehci_fsl {
1184 - struct ehci_hcd ehci;
1185  
1186 #ifdef CONFIG_PM
1187 - /* Saved USB PHY settings, need to restore after deep sleep. */
1188 - u32 usb_ctrl;
1189 -#endif
1190 -};
1191 +void __iomem *phy_reg;
1192  
1193 -#ifdef CONFIG_PM
1194 +#ifdef CONFIG_PPC
1195 +/* save usb registers */
1196 +static int ehci_fsl_save_context(struct usb_hcd *hcd)
1197 +{
1198 + struct ehci_fsl *ehci_fsl = hcd_to_ehci_fsl(hcd);
1199 + struct ehci_hcd *ehci = hcd_to_ehci(hcd);
1200 + void __iomem *non_ehci = hcd->regs;
1201 + struct device *dev = hcd->self.controller;
1202 + struct fsl_usb2_platform_data *pdata = dev_get_platdata(dev);
1203 +
1204 + if (pdata->phy_mode == FSL_USB2_PHY_UTMI_DUAL) {
1205 + phy_reg = ioremap(FSL_USB_PHY_ADDR,
1206 + sizeof(struct ccsr_usb_phy));
1207 + _memcpy_fromio((void *)&ehci_fsl->saved_phy_regs, phy_reg,
1208 + sizeof(struct ccsr_usb_phy));
1209 + }
1210 +
1211 + _memcpy_fromio((void *)&ehci_fsl->saved_regs, ehci->regs,
1212 + sizeof(struct ehci_regs));
1213 + ehci_fsl->usb_ctrl = ioread32be(non_ehci + FSL_SOC_USB_CTRL);
1214 +
1215 + return 0;
1216 +}
1217 +
1218 +/*Restore usb registers */
1219 +static int ehci_fsl_restore_context(struct usb_hcd *hcd)
1220 +{
1221 + struct ehci_fsl *ehci_fsl = hcd_to_ehci_fsl(hcd);
1222 + struct ehci_hcd *ehci = hcd_to_ehci(hcd);
1223 + void __iomem *non_ehci = hcd->regs;
1224 + struct device *dev = hcd->self.controller;
1225 + struct fsl_usb2_platform_data *pdata = dev_get_platdata(dev);
1226 +
1227 + if (pdata->phy_mode == FSL_USB2_PHY_UTMI_DUAL) {
1228 + if (phy_reg)
1229 + _memcpy_toio(phy_reg,
1230 + (void *)&ehci_fsl->saved_phy_regs,
1231 + sizeof(struct ccsr_usb_phy));
1232 + }
1233 +
1234 + _memcpy_toio(ehci->regs, (void *)&ehci_fsl->saved_regs,
1235 + sizeof(struct ehci_regs));
1236 + iowrite32be(ehci_fsl->usb_ctrl, non_ehci + FSL_SOC_USB_CTRL);
1237 +
1238 + return 0;
1239 +}
1240 +#endif
1241  
1242 #ifdef CONFIG_PPC_MPC512x
1243 static int ehci_fsl_mpc512x_drv_suspend(struct device *dev)
1244 @@ -535,26 +727,45 @@ static inline int ehci_fsl_mpc512x_drv_r
1245 }
1246 #endif /* CONFIG_PPC_MPC512x */
1247  
1248 -static struct ehci_fsl *hcd_to_ehci_fsl(struct usb_hcd *hcd)
1249 -{
1250 - struct ehci_hcd *ehci = hcd_to_ehci(hcd);
1251 -
1252 - return container_of(ehci, struct ehci_fsl, ehci);
1253 -}
1254 -
1255 static int ehci_fsl_drv_suspend(struct device *dev)
1256 {
1257 struct usb_hcd *hcd = dev_get_drvdata(dev);
1258 struct ehci_fsl *ehci_fsl = hcd_to_ehci_fsl(hcd);
1259 void __iomem *non_ehci = hcd->regs;
1260 +#if defined(CONFIG_FSL_USB2_OTG) || defined(CONFIG_FSL_USB2_OTG_MODULE)
1261 + struct usb_bus host = hcd->self;
1262 +#endif
1263 +
1264 +#ifdef CONFIG_PPC
1265 +suspend_state_t pm_state;
1266 +/* FIXME:Need to port fsl_pm.h before enable below code. */
1267 +/*pm_state = pm_suspend_state();*/
1268 +pm_state = PM_SUSPEND_MEM;
1269 +
1270 +if (pm_state == PM_SUSPEND_MEM)
1271 + ehci_fsl_save_context(hcd);
1272 +#endif
1273  
1274 if (of_device_is_compatible(dev->parent->of_node,
1275 "fsl,mpc5121-usb2-dr")) {
1276 return ehci_fsl_mpc512x_drv_suspend(dev);
1277 }
1278  
1279 +#if defined(CONFIG_FSL_USB2_OTG) || defined(CONFIG_FSL_USB2_OTG_MODULE)
1280 + if (host.is_otg) {
1281 + struct ehci_hcd *ehci = hcd_to_ehci(hcd);
1282 +
1283 + /* remove hcd */
1284 + ehci_fsl->hcd_add = 0;
1285 + schedule_work(&ehci->change_hcd_work);
1286 + host.is_otg = 0;
1287 + return 0;
1288 + }
1289 +#endif
1290 +
1291 ehci_prepare_ports_for_controller_suspend(hcd_to_ehci(hcd),
1292 device_may_wakeup(dev));
1293 +
1294 if (!fsl_deep_sleep())
1295 return 0;
1296  
1297 @@ -568,12 +779,36 @@ static int ehci_fsl_drv_resume(struct de
1298 struct ehci_fsl *ehci_fsl = hcd_to_ehci_fsl(hcd);
1299 struct ehci_hcd *ehci = hcd_to_ehci(hcd);
1300 void __iomem *non_ehci = hcd->regs;
1301 +#if defined(CONFIG_FSL_USB2_OTG) || defined(CONFIG_FSL_USB2_OTG_MODULE)
1302 + struct usb_bus host = hcd->self;
1303 +#endif
1304 +
1305 +#ifdef CONFIG_PPC
1306 +suspend_state_t pm_state;
1307 +/* FIXME:Need to port fsl_pm.h before enable below code.*/
1308 +/* pm_state = pm_suspend_state(); */
1309 +pm_state = PM_SUSPEND_MEM;
1310 +
1311 +if (pm_state == PM_SUSPEND_MEM)
1312 + ehci_fsl_restore_context(hcd);
1313 +#endif
1314  
1315 if (of_device_is_compatible(dev->parent->of_node,
1316 "fsl,mpc5121-usb2-dr")) {
1317 return ehci_fsl_mpc512x_drv_resume(dev);
1318 }
1319  
1320 +#if defined(CONFIG_FSL_USB2_OTG) || defined(CONFIG_FSL_USB2_OTG_MODULE)
1321 + if (host.is_otg) {
1322 + /* add hcd */
1323 + ehci_fsl->hcd_add = 1;
1324 + schedule_work(&ehci->change_hcd_work);
1325 + usb_hcd_resume_root_hub(hcd);
1326 + host.is_otg = 0;
1327 + return 0;
1328 + }
1329 +#endif
1330 +
1331 ehci_prepare_ports_for_controller_resume(ehci);
1332 if (!fsl_deep_sleep())
1333 return 0;
1334 --- a/drivers/usb/host/ehci-fsl.h
1335 +++ b/drivers/usb/host/ehci-fsl.h
1336 @@ -63,4 +63,7 @@
1337 #define UTMI_PHY_EN (1<<9)
1338 #define ULPI_PHY_CLK_SEL (1<<10)
1339 #define PHY_CLK_VALID (1<<17)
1340 +
1341 +/* Retry count for checking UTMI PHY CLK validity */
1342 +#define UTMI_PHY_CLK_VALID_CHK_RETRY 5
1343 #endif /* _EHCI_FSL_H */
1344 --- a/drivers/usb/host/ehci-hub.c
1345 +++ b/drivers/usb/host/ehci-hub.c
1346 @@ -278,6 +278,8 @@ static int ehci_bus_suspend (struct usb_
1347 else if ((t1 & PORT_PE) && !(t1 & PORT_SUSPEND)) {
1348 t2 |= PORT_SUSPEND;
1349 set_bit(port, &ehci->bus_suspended);
1350 + if (ehci_has_fsl_susp_errata(ehci))
1351 + usleep_range(10000, 20000);
1352 }
1353  
1354 /* enable remote wakeup on all ports, if told to do so */
1355 @@ -305,6 +307,8 @@ static int ehci_bus_suspend (struct usb_
1356 USB_PORT_STAT_HIGH_SPEED)
1357 fs_idle_delay = true;
1358 ehci_writel(ehci, t2, reg);
1359 + if (ehci_has_fsl_susp_errata(ehci))
1360 + usleep_range(10000, 20000);
1361 changed = 1;
1362 }
1363 }
1364 --- a/drivers/usb/host/ehci.h
1365 +++ b/drivers/usb/host/ehci.h
1366 @@ -180,6 +180,9 @@ struct ehci_hcd { /* one per controlle
1367 unsigned periodic_count; /* periodic activity count */
1368 unsigned uframe_periodic_max; /* max periodic time per uframe */
1369  
1370 +#if defined(CONFIG_FSL_USB2_OTG) || defined(CONFIG_FSL_USB2_OTG_MODULE)
1371 + struct work_struct change_hcd_work;
1372 +#endif
1373  
1374 /* list of itds & sitds completed while now_frame was still active */
1375 struct list_head cached_itd_list;
1376 @@ -219,6 +222,7 @@ struct ehci_hcd { /* one per controlle
1377 unsigned no_selective_suspend:1;
1378 unsigned has_fsl_port_bug:1; /* FreeScale */
1379 unsigned has_fsl_hs_errata:1; /* Freescale HS quirk */
1380 + unsigned has_fsl_susp_errata:1; /*Freescale SUSP quirk*/
1381 unsigned big_endian_mmio:1;
1382 unsigned big_endian_desc:1;
1383 unsigned big_endian_capbase:1;
1384 @@ -704,10 +708,15 @@ ehci_port_speed(struct ehci_hcd *ehci, u
1385 #if defined(CONFIG_PPC_85xx)
1386 /* Some Freescale processors have an erratum (USB A-005275) in which
1387 * incoming packets get corrupted in HS mode
1388 + * Some Freescale processors have an erratum (USB A-005697) in which
1389 + * we need to wait for 10ms for bus to fo into suspend mode after
1390 + * setting SUSP bit
1391 */
1392 #define ehci_has_fsl_hs_errata(e) ((e)->has_fsl_hs_errata)
1393 +#define ehci_has_fsl_susp_errata(e) ((e)->has_fsl_susp_errata)
1394 #else
1395 #define ehci_has_fsl_hs_errata(e) (0)
1396 +#define ehci_has_fsl_susp_errata(e) (0)
1397 #endif
1398  
1399 /*
1400 --- a/drivers/usb/host/fsl-mph-dr-of.c
1401 +++ b/drivers/usb/host/fsl-mph-dr-of.c
1402 @@ -226,6 +226,18 @@ static int fsl_usb2_mph_dr_of_probe(stru
1403 of_property_read_bool(np, "fsl,usb-erratum-a007792");
1404 pdata->has_fsl_erratum_a005275 =
1405 of_property_read_bool(np, "fsl,usb-erratum-a005275");
1406 + pdata->has_fsl_erratum_a005697 =
1407 + of_property_read_bool(np, "fsl,usb_erratum-a005697");
1408 + if (of_get_property(np, "fsl,erratum_a006918", NULL))
1409 + pdata->has_fsl_erratum_a006918 = 1;
1410 + else
1411 + pdata->has_fsl_erratum_a006918 = 0;
1412 +
1413 + if (of_get_property(np, "fsl,usb_erratum_14", NULL))
1414 + pdata->has_fsl_erratum_14 = 1;
1415 + else
1416 + pdata->has_fsl_erratum_14 = 0;
1417 +
1418  
1419 /*
1420 * Determine whether phy_clk_valid needs to be checked
1421 --- a/drivers/usb/host/xhci-plat.c
1422 +++ b/drivers/usb/host/xhci-plat.c
1423 @@ -223,6 +223,16 @@ static int xhci_plat_probe(struct platfo
1424 if (device_property_read_bool(&pdev->dev, "usb3-lpm-capable"))
1425 xhci->quirks |= XHCI_LPM_SUPPORT;
1426  
1427 + if (device_property_read_bool(&pdev->dev, "quirk-reverse-in-out"))
1428 + xhci->quirks |= XHCI_REVERSE_IN_OUT;
1429 +
1430 + if (device_property_read_bool(&pdev->dev,
1431 + "quirk-stop-transfer-in-block"))
1432 + xhci->quirks |= XHCI_STOP_TRANSFER_IN_BLOCK;
1433 +
1434 + if (device_property_read_bool(&pdev->dev, "quirk-stop-ep-in-u1"))
1435 + xhci->quirks |= XHCI_STOP_EP_IN_U1;
1436 +
1437 if (device_property_read_bool(&pdev->dev, "quirk-broken-port-ped"))
1438 xhci->quirks |= XHCI_BROKEN_PORT_PED;
1439  
1440 --- a/drivers/usb/host/xhci-ring.c
1441 +++ b/drivers/usb/host/xhci-ring.c
1442 @@ -1852,14 +1852,17 @@ static int finish_td(struct xhci_hcd *xh
1443 union xhci_trb *event_trb, struct xhci_transfer_event *event,
1444 struct xhci_virt_ep *ep, int *status, bool skip)
1445 {
1446 + struct xhci_dequeue_state deq_state;
1447 struct xhci_virt_device *xdev;
1448 struct xhci_ring *ep_ring;
1449 + unsigned int stream_id;
1450 unsigned int slot_id;
1451 int ep_index;
1452 struct urb *urb = NULL;
1453 struct xhci_ep_ctx *ep_ctx;
1454 int ret = 0;
1455 struct urb_priv *urb_priv;
1456 + u32 remaining;
1457 u32 trb_comp_code;
1458  
1459 slot_id = TRB_TO_SLOT_ID(le32_to_cpu(event->flags));
1460 @@ -1885,13 +1888,29 @@ static int finish_td(struct xhci_hcd *xh
1461 if (trb_comp_code == COMP_STALL ||
1462 xhci_requires_manual_halt_cleanup(xhci, ep_ctx,
1463 trb_comp_code)) {
1464 - /* Issue a reset endpoint command to clear the host side
1465 - * halt, followed by a set dequeue command to move the
1466 - * dequeue pointer past the TD.
1467 - * The class driver clears the device side halt later.
1468 + /*
1469 + * A-007463: After transaction error, controller switches
1470 + * control transfer data stage from IN to OUT direction.
1471 */
1472 - xhci_cleanup_halted_endpoint(xhci, slot_id, ep_index,
1473 + remaining = EVENT_TRB_LEN(le32_to_cpu(event->transfer_len));
1474 + if (remaining && xhci_requires_manual_halt_cleanup(xhci, ep_ctx,
1475 + trb_comp_code) &&
1476 + (xhci->quirks & XHCI_REVERSE_IN_OUT)) {
1477 + memset(&deq_state, 0, sizeof(deq_state));
1478 + xhci_find_new_dequeue_state(xhci, slot_id,
1479 + ep_index, td->urb->stream_id, td, &deq_state);
1480 + xhci_queue_new_dequeue_state(xhci, slot_id, ep_index,
1481 + stream_id, &deq_state);
1482 + xhci_ring_cmd_db(xhci);
1483 + } else {
1484 + /* Issue a reset endpoint command to clear the host side
1485 + * halt, followed by a set dequeue command to move the
1486 + * dequeue pointer past the TD.
1487 + * The class driver clears the device side halt later.
1488 + */
1489 + xhci_cleanup_halted_endpoint(xhci, slot_id, ep_index,
1490 ep_ring->stream_id, td, event_trb);
1491 + }
1492 } else {
1493 /* Update ring dequeue pointer */
1494 while (ep_ring->dequeue != td->last_trb)
1495 --- a/drivers/usb/host/xhci.c
1496 +++ b/drivers/usb/host/xhci.c
1497 @@ -1604,14 +1604,38 @@ int xhci_urb_dequeue(struct usb_hcd *hcd
1498 ret = -ENOMEM;
1499 goto done;
1500 }
1501 - ep->ep_state |= EP_HALT_PENDING;
1502 - ep->stop_cmds_pending++;
1503 - ep->stop_cmd_timer.expires = jiffies +
1504 + /*
1505 + *A-009611: Issuing an End Transfer command on an IN endpoint.
1506 + *when a transfer is in progress on USB blocks the transmission
1507 + *Workaround: Software must wait for all existing TRBs to
1508 + *complete before issuing End transfer command.
1509 + */
1510 + if ((ep_ring->enqueue == ep_ring->dequeue &&
1511 + (xhci->quirks & XHCI_STOP_TRANSFER_IN_BLOCK)) ||
1512 + !(xhci->quirks & XHCI_STOP_TRANSFER_IN_BLOCK)) {
1513 + ep->ep_state |= EP_HALT_PENDING;
1514 + ep->stop_cmds_pending++;
1515 + ep->stop_cmd_timer.expires = jiffies +
1516 XHCI_STOP_EP_CMD_TIMEOUT * HZ;
1517 - add_timer(&ep->stop_cmd_timer);
1518 - xhci_queue_stop_endpoint(xhci, command, urb->dev->slot_id,
1519 - ep_index, 0);
1520 - xhci_ring_cmd_db(xhci);
1521 + add_timer(&ep->stop_cmd_timer);
1522 + xhci_queue_stop_endpoint(xhci, command,
1523 + urb->dev->slot_id,
1524 + ep_index, 0);
1525 + xhci_ring_cmd_db(xhci);
1526 + }
1527 +
1528 + /*
1529 + *A-009668: Stop Endpoint Command does not complete.
1530 + *Workaround: Instead of issuing a Stop Endpoint Command,
1531 + *issue a Disable Slot Command with the corresponding slot ID.
1532 + *Alternately, you can issue an Address Device Command with
1533 + *BSR=1
1534 + */
1535 + if ((urb->dev->speed <= USB_SPEED_HIGH) &&
1536 + (xhci->quirks & XHCI_STOP_EP_IN_U1)) {
1537 + xhci_queue_slot_control(xhci, command, TRB_DISABLE_SLOT,
1538 + urb->dev->slot_id);
1539 + }
1540 }
1541 done:
1542 spin_unlock_irqrestore(&xhci->lock, flags);
1543 --- a/drivers/usb/host/xhci.h
1544 +++ b/drivers/usb/host/xhci.h
1545 @@ -1625,7 +1625,7 @@ struct xhci_hcd {
1546 #define XHCI_STATE_REMOVING (1 << 2)
1547 /* Statistics */
1548 int error_bitmask;
1549 - unsigned int quirks;
1550 + u64 quirks;
1551 #define XHCI_LINK_TRB_QUIRK (1 << 0)
1552 #define XHCI_RESET_EP_QUIRK (1 << 1)
1553 #define XHCI_NEC_HOST (1 << 2)
1554 @@ -1661,6 +1661,9 @@ struct xhci_hcd {
1555 #define XHCI_SSIC_PORT_UNUSED (1 << 22)
1556 #define XHCI_NO_64BIT_SUPPORT (1 << 23)
1557 #define XHCI_MISSING_CAS (1 << 24)
1558 +#define XHCI_REVERSE_IN_OUT (1 << 29)
1559 +#define XHCI_STOP_TRANSFER_IN_BLOCK (1 << 30)
1560 +#define XHCI_STOP_EP_IN_U1 (1 << 31)
1561 /* For controller with a broken Port Disable implementation */
1562 #define XHCI_BROKEN_PORT_PED (1 << 25)
1563 #define XHCI_LIMIT_ENDPOINT_INTERVAL_7 (1 << 26)
1564 --- a/drivers/usb/phy/phy-fsl-usb.c
1565 +++ b/drivers/usb/phy/phy-fsl-usb.c
1566 @@ -1,5 +1,5 @@
1567 /*
1568 - * Copyright (C) 2007,2008 Freescale semiconductor, Inc.
1569 + * Copyright 2007,2008 Freescale Semiconductor, Inc.
1570 *
1571 * Author: Li Yang <LeoLi@freescale.com>
1572 * Jerry Huang <Chang-Ming.Huang@freescale.com>
1573 @@ -463,6 +463,7 @@ void otg_reset_controller(void)
1574 int fsl_otg_start_host(struct otg_fsm *fsm, int on)
1575 {
1576 struct usb_otg *otg = fsm->otg;
1577 + struct usb_bus *host = otg->host;
1578 struct device *dev;
1579 struct fsl_otg *otg_dev =
1580 container_of(otg->usb_phy, struct fsl_otg, phy);
1581 @@ -486,6 +487,7 @@ int fsl_otg_start_host(struct otg_fsm *f
1582 otg_reset_controller();
1583 VDBG("host on......\n");
1584 if (dev->driver->pm && dev->driver->pm->resume) {
1585 + host->is_otg = 1;
1586 retval = dev->driver->pm->resume(dev);
1587 if (fsm->id) {
1588 /* default-b */
1589 @@ -510,8 +512,11 @@ int fsl_otg_start_host(struct otg_fsm *f
1590 else {
1591 VDBG("host off......\n");
1592 if (dev && dev->driver) {
1593 - if (dev->driver->pm && dev->driver->pm->suspend)
1594 + if (dev->driver->pm &&
1595 + dev->driver->pm->suspend) {
1596 + host->is_otg = 1;
1597 retval = dev->driver->pm->suspend(dev);
1598 + }
1599 if (fsm->id)
1600 /* default-b */
1601 fsl_otg_drv_vbus(fsm, 0);
1602 @@ -539,8 +544,17 @@ int fsl_otg_start_gadget(struct otg_fsm
1603 dev = otg->gadget->dev.parent;
1604  
1605 if (on) {
1606 - if (dev->driver->resume)
1607 + /* Delay gadget resume to synchronize between host and gadget
1608 + * drivers. Upon role-reversal host drv is shutdown by kernel
1609 + * worker thread. By the time host drv shuts down, controller
1610 + * gets programmed for gadget role. Shutting host drv after
1611 + * this results in controller getting reset, and it stops
1612 + * responding to otg events
1613 + */
1614 + if (dev->driver->resume) {
1615 + msleep(1000);
1616 dev->driver->resume(dev);
1617 + }
1618 } else {
1619 if (dev->driver->suspend)
1620 dev->driver->suspend(dev, otg_suspend_state);
1621 @@ -672,6 +686,10 @@ static void fsl_otg_event(struct work_st
1622 fsl_otg_start_host(fsm, 0);
1623 otg_drv_vbus(fsm, 0);
1624 fsl_otg_start_gadget(fsm, 1);
1625 + } else {
1626 + fsl_otg_start_gadget(fsm, 0);
1627 + otg_drv_vbus(fsm, 1);
1628 + fsl_otg_start_host(fsm, 1);
1629 }
1630 }
1631  
1632 @@ -724,6 +742,7 @@ irqreturn_t fsl_otg_isr(int irq, void *d
1633 {
1634 struct otg_fsm *fsm = &((struct fsl_otg *)dev_id)->fsm;
1635 struct usb_otg *otg = ((struct fsl_otg *)dev_id)->phy.otg;
1636 + struct fsl_otg *otg_dev = dev_id;
1637 u32 otg_int_src, otg_sc;
1638  
1639 otg_sc = fsl_readl(&usb_dr_regs->otgsc);
1640 @@ -753,18 +772,8 @@ irqreturn_t fsl_otg_isr(int irq, void *d
1641 otg->gadget->is_a_peripheral = !fsm->id;
1642 VDBG("ID int (ID is %d)\n", fsm->id);
1643  
1644 - if (fsm->id) { /* switch to gadget */
1645 - schedule_delayed_work(
1646 - &((struct fsl_otg *)dev_id)->otg_event,
1647 - 100);
1648 - } else { /* switch to host */
1649 - cancel_delayed_work(&
1650 - ((struct fsl_otg *)dev_id)->
1651 - otg_event);
1652 - fsl_otg_start_gadget(fsm, 0);
1653 - otg_drv_vbus(fsm, 1);
1654 - fsl_otg_start_host(fsm, 1);
1655 - }
1656 + schedule_delayed_work(&otg_dev->otg_event, 100);
1657 +
1658 return IRQ_HANDLED;
1659 }
1660 }
1661 @@ -923,12 +932,32 @@ int usb_otg_start(struct platform_device
1662 temp &= ~(PORTSC_PHY_TYPE_SEL | PORTSC_PTW);
1663 switch (pdata->phy_mode) {
1664 case FSL_USB2_PHY_ULPI:
1665 + if (pdata->controller_ver) {
1666 + /* controller version 1.6 or above */
1667 + setbits32(&p_otg->dr_mem_map->control,
1668 + USB_CTRL_ULPI_PHY_CLK_SEL);
1669 + /*
1670 + * Due to controller issue of PHY_CLK_VALID in ULPI
1671 + * mode, we set USB_CTRL_USB_EN before checking
1672 + * PHY_CLK_VALID, otherwise PHY_CLK_VALID doesn't work.
1673 + */
1674 + clrsetbits_be32(&p_otg->dr_mem_map->control,
1675 + USB_CTRL_UTMI_PHY_EN, USB_CTRL_IOENB);
1676 + }
1677 temp |= PORTSC_PTS_ULPI;
1678 break;
1679 case FSL_USB2_PHY_UTMI_WIDE:
1680 temp |= PORTSC_PTW_16BIT;
1681 /* fall through */
1682 case FSL_USB2_PHY_UTMI:
1683 + if (pdata->controller_ver) {
1684 + /* controller version 1.6 or above */
1685 + setbits32(&p_otg->dr_mem_map->control,
1686 + USB_CTRL_UTMI_PHY_EN);
1687 + /* Delay for UTMI PHY CLK to become stable - 10ms */
1688 + mdelay(FSL_UTMI_PHY_DLY);
1689 + }
1690 + setbits32(&p_otg->dr_mem_map->control, USB_CTRL_UTMI_PHY_EN);
1691 temp |= PORTSC_PTS_UTMI;
1692 /* fall through */
1693 default:
1694 --- a/drivers/usb/phy/phy-fsl-usb.h
1695 +++ b/drivers/usb/phy/phy-fsl-usb.h
1696 @@ -199,6 +199,14 @@
1697 /* control Register Bit Masks */
1698 #define USB_CTRL_IOENB (0x1<<2)
1699 #define USB_CTRL_ULPI_INT0EN (0x1<<0)
1700 +#define USB_CTRL_WU_INT_EN (0x1<<1)
1701 +#define USB_CTRL_LINE_STATE_FILTER__EN (0x1<<3)
1702 +#define USB_CTRL_KEEP_OTG_ON (0x1<<4)
1703 +#define USB_CTRL_OTG_PORT (0x1<<5)
1704 +#define USB_CTRL_PLL_RESET (0x1<<8)
1705 +#define USB_CTRL_UTMI_PHY_EN (0x1<<9)
1706 +#define USB_CTRL_ULPI_PHY_CLK_SEL (0x1<<10)
1707 +#define USB_CTRL_PHY_CLK_VALID (0x1<<17)
1708  
1709 /* BCSR5 */
1710 #define BCSR5_INT_USB (0x02)
1711 --- a/include/linux/usb.h
1712 +++ b/include/linux/usb.h
1713 @@ -362,6 +362,7 @@ struct usb_bus {
1714 * for control transfers?
1715 */
1716 u8 otg_port; /* 0, or number of OTG/HNP port */
1717 + unsigned is_otg:1; /* true when host is also otg */
1718 unsigned is_b_host:1; /* true during some HNP roleswitches */
1719 unsigned b_hnp_enable:1; /* OTG: did A-Host enable HNP? */
1720 unsigned no_stop_on_short:1; /*
1721 --- a/include/linux/usb/of.h
1722 +++ b/include/linux/usb/of.h
1723 @@ -11,6 +11,8 @@
1724 #include <linux/usb/otg.h>
1725 #include <linux/usb/phy.h>
1726  
1727 +enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np);
1728 +
1729 #if IS_ENABLED(CONFIG_OF)
1730 enum usb_dr_mode of_usb_get_dr_mode_by_phy(struct device_node *np, int arg0);
1731 bool of_usb_host_tpl_support(struct device_node *np);