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1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Setup platform devices needed by the Freescale multi-port host
4 * and/or dual-role USB controller modules based on the description
5 * in flat device tree.
6 */
7
8#include <linux/kernel.h>
9#include <linux/platform_device.h>
10#include <linux/fsl_devices.h>
11#include <linux/err.h>
12#include <linux/io.h>
13#include <linux/of_platform.h>
14#include <linux/clk.h>
15#include <linux/module.h>
16#include <linux/dma-mapping.h>
17
18struct fsl_usb2_dev_data {
19 char *dr_mode; /* controller mode */
20 char *drivers[3]; /* drivers to instantiate for this mode */
21 enum fsl_usb2_operating_modes op_mode; /* operating mode */
22};
23
24static struct fsl_usb2_dev_data dr_mode_data[] = {
25 {
26 .dr_mode = "host",
27 .drivers = { "fsl-ehci", NULL, NULL, },
28 .op_mode = FSL_USB2_DR_HOST,
29 },
30 {
31 .dr_mode = "otg",
32 .drivers = { "fsl-usb2-otg", "fsl-ehci", "fsl-usb2-udc", },
33 .op_mode = FSL_USB2_DR_OTG,
34 },
35 {
36 .dr_mode = "peripheral",
37 .drivers = { "fsl-usb2-udc", NULL, NULL, },
38 .op_mode = FSL_USB2_DR_DEVICE,
39 },
40};
41
42static struct fsl_usb2_dev_data *get_dr_mode_data(struct device_node *np)
43{
44 const unsigned char *prop;
45 int i;
46
47 prop = of_get_property(np, "dr_mode", NULL);
48 if (prop) {
49 for (i = 0; i < ARRAY_SIZE(dr_mode_data); i++) {
50 if (!strcmp(prop, dr_mode_data[i].dr_mode))
51 return &dr_mode_data[i];
52 }
53 }
54 pr_warn("%pOF: Invalid 'dr_mode' property, fallback to host mode\n",
55 np);
56 return &dr_mode_data[0]; /* mode not specified, use host */
57}
58
59static enum fsl_usb2_phy_modes determine_usb_phy(const char *phy_type)
60{
61 if (!phy_type)
62 return FSL_USB2_PHY_NONE;
63 if (!strcasecmp(phy_type, "ulpi"))
64 return FSL_USB2_PHY_ULPI;
65 if (!strcasecmp(phy_type, "utmi"))
66 return FSL_USB2_PHY_UTMI;
67 if (!strcasecmp(phy_type, "utmi_wide"))
68 return FSL_USB2_PHY_UTMI_WIDE;
69 if (!strcasecmp(phy_type, "utmi_dual"))
70 return FSL_USB2_PHY_UTMI_DUAL;
71 if (!strcasecmp(phy_type, "serial"))
72 return FSL_USB2_PHY_SERIAL;
73
74 return FSL_USB2_PHY_NONE;
75}
76
77static struct platform_device *fsl_usb2_device_register(
78 struct platform_device *ofdev,
79 struct fsl_usb2_platform_data *pdata,
80 const char *name, int id)
81{
82 struct platform_device *pdev;
83 const struct resource *res = ofdev->resource;
84 unsigned int num = ofdev->num_resources;
85 int retval;
86
87 pdev = platform_device_alloc(name, id);
88 if (!pdev) {
89 retval = -ENOMEM;
90 goto error;
91 }
92
93 pdev->dev.parent = &ofdev->dev;
94
95 pdev->dev.coherent_dma_mask = ofdev->dev.coherent_dma_mask;
96
97 if (!pdev->dev.dma_mask) {
98 pdev->dev.dma_mask = &ofdev->dev.coherent_dma_mask;
99 } else {
100 retval = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
101 if (retval)
102 goto error;
103 }
104
105 retval = platform_device_add_data(pdev, pdata, sizeof(*pdata));
106 if (retval)
107 goto error;
108
109 if (num) {
110 retval = platform_device_add_resources(pdev, res, num);
111 if (retval)
112 goto error;
113 }
114
115 pdev->dev.of_node = ofdev->dev.of_node;
116 pdev->dev.of_node_reused = true;
117
118 retval = platform_device_add(pdev);
119 if (retval)
120 goto error;
121
122 return pdev;
123
124error:
125 platform_device_put(pdev);
126 return ERR_PTR(retval);
127}
128
129static const struct of_device_id fsl_usb2_mph_dr_of_match[];
130
131static enum fsl_usb2_controller_ver usb_get_ver_info(struct device_node *np)
132{
133 enum fsl_usb2_controller_ver ver = FSL_USB_VER_NONE;
134
135 /*
136 * returns 1 for usb controller version 1.6
137 * returns 2 for usb controller version 2.2
138 * returns 3 for usb controller version 2.4
139 * returns 4 for usb controller version 2.5
140 * returns 0 otherwise
141 */
142 if (of_device_is_compatible(np, "fsl-usb2-dr")) {
143 if (of_device_is_compatible(np, "fsl-usb2-dr-v1.6"))
144 ver = FSL_USB_VER_1_6;
145 else if (of_device_is_compatible(np, "fsl-usb2-dr-v2.2"))
146 ver = FSL_USB_VER_2_2;
147 else if (of_device_is_compatible(np, "fsl-usb2-dr-v2.4"))
148 ver = FSL_USB_VER_2_4;
149 else if (of_device_is_compatible(np, "fsl-usb2-dr-v2.5"))
150 ver = FSL_USB_VER_2_5;
151 else /* for previous controller versions */
152 ver = FSL_USB_VER_OLD;
153
154 if (ver > FSL_USB_VER_NONE)
155 return ver;
156 }
157
158 if (of_device_is_compatible(np, "fsl,mpc5121-usb2-dr"))
159 return FSL_USB_VER_OLD;
160
161 if (of_device_is_compatible(np, "fsl-usb2-mph")) {
162 if (of_device_is_compatible(np, "fsl-usb2-mph-v1.6"))
163 ver = FSL_USB_VER_1_6;
164 else if (of_device_is_compatible(np, "fsl-usb2-mph-v2.2"))
165 ver = FSL_USB_VER_2_2;
166 else if (of_device_is_compatible(np, "fsl-usb2-mph-v2.4"))
167 ver = FSL_USB_VER_2_4;
168 else if (of_device_is_compatible(np, "fsl-usb2-mph-v2.5"))
169 ver = FSL_USB_VER_2_5;
170 else /* for previous controller versions */
171 ver = FSL_USB_VER_OLD;
172 }
173
174 return ver;
175}
176
177static int fsl_usb2_mph_dr_of_probe(struct platform_device *ofdev)
178{
179 struct device_node *np = ofdev->dev.of_node;
180 struct platform_device *usb_dev;
181 struct fsl_usb2_platform_data data, *pdata;
182 struct fsl_usb2_dev_data *dev_data;
183 const struct of_device_id *match;
184 const unsigned char *prop;
185 static unsigned int idx;
186 int i;
187
188 if (!of_device_is_available(np))
189 return -ENODEV;
190
191 match = of_match_device(fsl_usb2_mph_dr_of_match, &ofdev->dev);
192 if (!match)
193 return -ENODEV;
194
195 pdata = &data;
196 if (match->data)
197 memcpy(pdata, match->data, sizeof(data));
198 else
199 memset(pdata, 0, sizeof(data));
200
201 dev_data = get_dr_mode_data(np);
202
203 if (of_device_is_compatible(np, "fsl-usb2-mph")) {
204 if (of_get_property(np, "port0", NULL))
205 pdata->port_enables |= FSL_USB2_PORT0_ENABLED;
206
207 if (of_get_property(np, "port1", NULL))
208 pdata->port_enables |= FSL_USB2_PORT1_ENABLED;
209
210 pdata->operating_mode = FSL_USB2_MPH_HOST;
211 } else {
212 if (of_get_property(np, "fsl,invert-drvvbus", NULL))
213 pdata->invert_drvvbus = 1;
214
215 if (of_get_property(np, "fsl,invert-pwr-fault", NULL))
216 pdata->invert_pwr_fault = 1;
217
218 /* setup mode selected in the device tree */
219 pdata->operating_mode = dev_data->op_mode;
220 }
221
222 prop = of_get_property(np, "phy_type", NULL);
223 pdata->phy_mode = determine_usb_phy(prop);
224 pdata->controller_ver = usb_get_ver_info(np);
225
226 /* Activate Erratum by reading property in device tree */
227 pdata->has_fsl_erratum_a007792 =
228 of_property_read_bool(np, "fsl,usb-erratum-a007792");
229 pdata->has_fsl_erratum_a005275 =
230 of_property_read_bool(np, "fsl,usb-erratum-a005275");
231 pdata->has_fsl_erratum_a005697 =
232 of_property_read_bool(np, "fsl,usb_erratum-a005697");
233 pdata->has_fsl_erratum_a006918 =
234 of_property_read_bool(np, "fsl,usb_erratum-a006918");
235 pdata->has_fsl_erratum_14 =
236 of_property_read_bool(np, "fsl,usb_erratum-14");
237
238 /*
239 * Determine whether phy_clk_valid needs to be checked
240 * by reading property in device tree
241 */
242 pdata->check_phy_clk_valid =
243 of_property_read_bool(np, "phy-clk-valid");
244
245 if (pdata->have_sysif_regs) {
246 if (pdata->controller_ver == FSL_USB_VER_NONE) {
247 dev_warn(&ofdev->dev, "Could not get controller version\n");
248 return -ENODEV;
249 }
250 }
251
252 for (i = 0; i < ARRAY_SIZE(dev_data->drivers); i++) {
253 if (!dev_data->drivers[i])
254 continue;
255 usb_dev = fsl_usb2_device_register(ofdev, pdata,
256 dev_data->drivers[i], idx);
257 if (IS_ERR(usb_dev)) {
258 dev_err(&ofdev->dev, "Can't register usb device\n");
259 return PTR_ERR(usb_dev);
260 }
261 }
262 idx++;
263 return 0;
264}
265
266static int __unregister_subdev(struct device *dev, void *d)
267{
268 platform_device_unregister(to_platform_device(dev));
269 return 0;
270}
271
272static int fsl_usb2_mph_dr_of_remove(struct platform_device *ofdev)
273{
274 device_for_each_child(&ofdev->dev, NULL, __unregister_subdev);
275 return 0;
276}
277
278#ifdef CONFIG_PPC_MPC512x
279
280#define USBGENCTRL 0x200 /* NOTE: big endian */
281#define GC_WU_INT_CLR (1 << 5) /* Wakeup int clear */
282#define GC_ULPI_SEL (1 << 4) /* ULPI i/f select (usb0 only)*/
283#define GC_PPP (1 << 3) /* Inv. Port Power Polarity */
284#define GC_PFP (1 << 2) /* Inv. Power Fault Polarity */
285#define GC_WU_ULPI_EN (1 << 1) /* Wakeup on ULPI event */
286#define GC_WU_IE (1 << 1) /* Wakeup interrupt enable */
287
288#define ISIPHYCTRL 0x204 /* NOTE: big endian */
289#define PHYCTRL_PHYE (1 << 4) /* On-chip UTMI PHY enable */
290#define PHYCTRL_BSENH (1 << 3) /* Bit Stuff Enable High */
291#define PHYCTRL_BSEN (1 << 2) /* Bit Stuff Enable */
292#define PHYCTRL_LSFE (1 << 1) /* Line State Filter Enable */
293#define PHYCTRL_PXE (1 << 0) /* PHY oscillator enable */
294
295int fsl_usb2_mpc5121_init(struct platform_device *pdev)
296{
297 struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev);
298 struct clk *clk;
299 int err;
300
301 clk = devm_clk_get(pdev->dev.parent, "ipg");
302 if (IS_ERR(clk)) {
303 dev_err(&pdev->dev, "failed to get clk\n");
304 return PTR_ERR(clk);
305 }
306 err = clk_prepare_enable(clk);
307 if (err) {
308 dev_err(&pdev->dev, "failed to enable clk\n");
309 return err;
310 }
311 pdata->clk = clk;
312
313 if (pdata->phy_mode == FSL_USB2_PHY_UTMI_WIDE) {
314 u32 reg = 0;
315
316 if (pdata->invert_drvvbus)
317 reg |= GC_PPP;
318
319 if (pdata->invert_pwr_fault)
320 reg |= GC_PFP;
321
322 out_be32(pdata->regs + ISIPHYCTRL, PHYCTRL_PHYE | PHYCTRL_PXE);
323 out_be32(pdata->regs + USBGENCTRL, reg);
324 }
325 return 0;
326}
327
328static void fsl_usb2_mpc5121_exit(struct platform_device *pdev)
329{
330 struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev);
331
332 pdata->regs = NULL;
333
334 if (pdata->clk)
335 clk_disable_unprepare(pdata->clk);
336}
337
338static struct fsl_usb2_platform_data fsl_usb2_mpc5121_pd = {
339 .big_endian_desc = 1,
340 .big_endian_mmio = 1,
341 .es = 1,
342 .have_sysif_regs = 0,
343 .le_setup_buf = 1,
344 .init = fsl_usb2_mpc5121_init,
345 .exit = fsl_usb2_mpc5121_exit,
346};
347#endif /* CONFIG_PPC_MPC512x */
348
349static struct fsl_usb2_platform_data fsl_usb2_mpc8xxx_pd = {
350 .have_sysif_regs = 1,
351};
352
353static const struct of_device_id fsl_usb2_mph_dr_of_match[] = {
354 { .compatible = "fsl-usb2-mph", .data = &fsl_usb2_mpc8xxx_pd, },
355 { .compatible = "fsl-usb2-dr", .data = &fsl_usb2_mpc8xxx_pd, },
356#ifdef CONFIG_PPC_MPC512x
357 { .compatible = "fsl,mpc5121-usb2-dr", .data = &fsl_usb2_mpc5121_pd, },
358#endif
359 {},
360};
361MODULE_DEVICE_TABLE(of, fsl_usb2_mph_dr_of_match);
362
363static struct platform_driver fsl_usb2_mph_dr_driver = {
364 .driver = {
365 .name = "fsl-usb2-mph-dr",
366 .of_match_table = fsl_usb2_mph_dr_of_match,
367 },
368 .probe = fsl_usb2_mph_dr_of_probe,
369 .remove = fsl_usb2_mph_dr_of_remove,
370};
371
372module_platform_driver(fsl_usb2_mph_dr_driver);
373
374MODULE_DESCRIPTION("FSL MPH DR OF devices driver");
375MODULE_AUTHOR("Anatolij Gustschin <agust@denx.de>");
376MODULE_LICENSE("GPL");
1/*
2 * Setup platform devices needed by the Freescale multi-port host
3 * and/or dual-role USB controller modules based on the description
4 * in flat device tree.
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
10 */
11
12#include <linux/kernel.h>
13#include <linux/platform_device.h>
14#include <linux/fsl_devices.h>
15#include <linux/err.h>
16#include <linux/io.h>
17#include <linux/of_platform.h>
18#include <linux/clk.h>
19#include <linux/module.h>
20#include <linux/dma-mapping.h>
21
22struct fsl_usb2_dev_data {
23 char *dr_mode; /* controller mode */
24 char *drivers[3]; /* drivers to instantiate for this mode */
25 enum fsl_usb2_operating_modes op_mode; /* operating mode */
26};
27
28static struct fsl_usb2_dev_data dr_mode_data[] = {
29 {
30 .dr_mode = "host",
31 .drivers = { "fsl-ehci", NULL, NULL, },
32 .op_mode = FSL_USB2_DR_HOST,
33 },
34 {
35 .dr_mode = "otg",
36 .drivers = { "fsl-usb2-otg", "fsl-ehci", "fsl-usb2-udc", },
37 .op_mode = FSL_USB2_DR_OTG,
38 },
39 {
40 .dr_mode = "peripheral",
41 .drivers = { "fsl-usb2-udc", NULL, NULL, },
42 .op_mode = FSL_USB2_DR_DEVICE,
43 },
44};
45
46static struct fsl_usb2_dev_data *get_dr_mode_data(struct device_node *np)
47{
48 const unsigned char *prop;
49 int i;
50
51 prop = of_get_property(np, "dr_mode", NULL);
52 if (prop) {
53 for (i = 0; i < ARRAY_SIZE(dr_mode_data); i++) {
54 if (!strcmp(prop, dr_mode_data[i].dr_mode))
55 return &dr_mode_data[i];
56 }
57 }
58 pr_warn("%s: Invalid 'dr_mode' property, fallback to host mode\n",
59 np->full_name);
60 return &dr_mode_data[0]; /* mode not specified, use host */
61}
62
63static enum fsl_usb2_phy_modes determine_usb_phy(const char *phy_type)
64{
65 if (!phy_type)
66 return FSL_USB2_PHY_NONE;
67 if (!strcasecmp(phy_type, "ulpi"))
68 return FSL_USB2_PHY_ULPI;
69 if (!strcasecmp(phy_type, "utmi"))
70 return FSL_USB2_PHY_UTMI;
71 if (!strcasecmp(phy_type, "utmi_wide"))
72 return FSL_USB2_PHY_UTMI_WIDE;
73 if (!strcasecmp(phy_type, "utmi_dual"))
74 return FSL_USB2_PHY_UTMI_DUAL;
75 if (!strcasecmp(phy_type, "serial"))
76 return FSL_USB2_PHY_SERIAL;
77
78 return FSL_USB2_PHY_NONE;
79}
80
81static struct platform_device *fsl_usb2_device_register(
82 struct platform_device *ofdev,
83 struct fsl_usb2_platform_data *pdata,
84 const char *name, int id)
85{
86 struct platform_device *pdev;
87 const struct resource *res = ofdev->resource;
88 unsigned int num = ofdev->num_resources;
89 int retval;
90
91 pdev = platform_device_alloc(name, id);
92 if (!pdev) {
93 retval = -ENOMEM;
94 goto error;
95 }
96
97 pdev->dev.parent = &ofdev->dev;
98
99 pdev->dev.coherent_dma_mask = ofdev->dev.coherent_dma_mask;
100
101 if (!pdev->dev.dma_mask)
102 pdev->dev.dma_mask = &ofdev->dev.coherent_dma_mask;
103 else
104 dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
105
106 retval = platform_device_add_data(pdev, pdata, sizeof(*pdata));
107 if (retval)
108 goto error;
109
110 if (num) {
111 retval = platform_device_add_resources(pdev, res, num);
112 if (retval)
113 goto error;
114 }
115
116 retval = platform_device_add(pdev);
117 if (retval)
118 goto error;
119
120 return pdev;
121
122error:
123 platform_device_put(pdev);
124 return ERR_PTR(retval);
125}
126
127static const struct of_device_id fsl_usb2_mph_dr_of_match[];
128
129static enum fsl_usb2_controller_ver usb_get_ver_info(struct device_node *np)
130{
131 enum fsl_usb2_controller_ver ver = FSL_USB_VER_NONE;
132
133 /*
134 * returns 1 for usb controller version 1.6
135 * returns 2 for usb controller version 2.2
136 * returns 3 for usb controller version 2.4
137 * returns 4 for usb controller version 2.5
138 * returns 0 otherwise
139 */
140 if (of_device_is_compatible(np, "fsl-usb2-dr")) {
141 if (of_device_is_compatible(np, "fsl-usb2-dr-v1.6"))
142 ver = FSL_USB_VER_1_6;
143 else if (of_device_is_compatible(np, "fsl-usb2-dr-v2.2"))
144 ver = FSL_USB_VER_2_2;
145 else if (of_device_is_compatible(np, "fsl-usb2-dr-v2.4"))
146 ver = FSL_USB_VER_2_4;
147 else if (of_device_is_compatible(np, "fsl-usb2-dr-v2.5"))
148 ver = FSL_USB_VER_2_5;
149 else /* for previous controller versions */
150 ver = FSL_USB_VER_OLD;
151
152 if (ver > FSL_USB_VER_NONE)
153 return ver;
154 }
155
156 if (of_device_is_compatible(np, "fsl,mpc5121-usb2-dr"))
157 return FSL_USB_VER_OLD;
158
159 if (of_device_is_compatible(np, "fsl-usb2-mph")) {
160 if (of_device_is_compatible(np, "fsl-usb2-mph-v1.6"))
161 ver = FSL_USB_VER_1_6;
162 else if (of_device_is_compatible(np, "fsl-usb2-mph-v2.2"))
163 ver = FSL_USB_VER_2_2;
164 else if (of_device_is_compatible(np, "fsl-usb2-mph-v2.4"))
165 ver = FSL_USB_VER_2_4;
166 else if (of_device_is_compatible(np, "fsl-usb2-mph-v2.5"))
167 ver = FSL_USB_VER_2_5;
168 else /* for previous controller versions */
169 ver = FSL_USB_VER_OLD;
170 }
171
172 return ver;
173}
174
175static int fsl_usb2_mph_dr_of_probe(struct platform_device *ofdev)
176{
177 struct device_node *np = ofdev->dev.of_node;
178 struct platform_device *usb_dev;
179 struct fsl_usb2_platform_data data, *pdata;
180 struct fsl_usb2_dev_data *dev_data;
181 const struct of_device_id *match;
182 const unsigned char *prop;
183 static unsigned int idx;
184 int i;
185
186 if (!of_device_is_available(np))
187 return -ENODEV;
188
189 match = of_match_device(fsl_usb2_mph_dr_of_match, &ofdev->dev);
190 if (!match)
191 return -ENODEV;
192
193 pdata = &data;
194 if (match->data)
195 memcpy(pdata, match->data, sizeof(data));
196 else
197 memset(pdata, 0, sizeof(data));
198
199 dev_data = get_dr_mode_data(np);
200
201 if (of_device_is_compatible(np, "fsl-usb2-mph")) {
202 if (of_get_property(np, "port0", NULL))
203 pdata->port_enables |= FSL_USB2_PORT0_ENABLED;
204
205 if (of_get_property(np, "port1", NULL))
206 pdata->port_enables |= FSL_USB2_PORT1_ENABLED;
207
208 pdata->operating_mode = FSL_USB2_MPH_HOST;
209 } else {
210 if (of_get_property(np, "fsl,invert-drvvbus", NULL))
211 pdata->invert_drvvbus = 1;
212
213 if (of_get_property(np, "fsl,invert-pwr-fault", NULL))
214 pdata->invert_pwr_fault = 1;
215
216 /* setup mode selected in the device tree */
217 pdata->operating_mode = dev_data->op_mode;
218 }
219
220 prop = of_get_property(np, "phy_type", NULL);
221 pdata->phy_mode = determine_usb_phy(prop);
222 pdata->controller_ver = usb_get_ver_info(np);
223
224 /* Activate Erratum by reading property in device tree */
225 pdata->has_fsl_erratum_a007792 =
226 of_property_read_bool(np, "fsl,usb-erratum-a007792");
227 pdata->has_fsl_erratum_a005275 =
228 of_property_read_bool(np, "fsl,usb-erratum-a005275");
229 pdata->has_fsl_erratum_a005697 =
230 of_property_read_bool(np, "fsl,usb_erratum-a005697");
231
232 /*
233 * Determine whether phy_clk_valid needs to be checked
234 * by reading property in device tree
235 */
236 pdata->check_phy_clk_valid =
237 of_property_read_bool(np, "phy-clk-valid");
238
239 if (pdata->have_sysif_regs) {
240 if (pdata->controller_ver == FSL_USB_VER_NONE) {
241 dev_warn(&ofdev->dev, "Could not get controller version\n");
242 return -ENODEV;
243 }
244 }
245
246 for (i = 0; i < ARRAY_SIZE(dev_data->drivers); i++) {
247 if (!dev_data->drivers[i])
248 continue;
249 usb_dev = fsl_usb2_device_register(ofdev, pdata,
250 dev_data->drivers[i], idx);
251 if (IS_ERR(usb_dev)) {
252 dev_err(&ofdev->dev, "Can't register usb device\n");
253 return PTR_ERR(usb_dev);
254 }
255 }
256 idx++;
257 return 0;
258}
259
260static int __unregister_subdev(struct device *dev, void *d)
261{
262 platform_device_unregister(to_platform_device(dev));
263 return 0;
264}
265
266static int fsl_usb2_mph_dr_of_remove(struct platform_device *ofdev)
267{
268 device_for_each_child(&ofdev->dev, NULL, __unregister_subdev);
269 return 0;
270}
271
272#ifdef CONFIG_PPC_MPC512x
273
274#define USBGENCTRL 0x200 /* NOTE: big endian */
275#define GC_WU_INT_CLR (1 << 5) /* Wakeup int clear */
276#define GC_ULPI_SEL (1 << 4) /* ULPI i/f select (usb0 only)*/
277#define GC_PPP (1 << 3) /* Inv. Port Power Polarity */
278#define GC_PFP (1 << 2) /* Inv. Power Fault Polarity */
279#define GC_WU_ULPI_EN (1 << 1) /* Wakeup on ULPI event */
280#define GC_WU_IE (1 << 1) /* Wakeup interrupt enable */
281
282#define ISIPHYCTRL 0x204 /* NOTE: big endian */
283#define PHYCTRL_PHYE (1 << 4) /* On-chip UTMI PHY enable */
284#define PHYCTRL_BSENH (1 << 3) /* Bit Stuff Enable High */
285#define PHYCTRL_BSEN (1 << 2) /* Bit Stuff Enable */
286#define PHYCTRL_LSFE (1 << 1) /* Line State Filter Enable */
287#define PHYCTRL_PXE (1 << 0) /* PHY oscillator enable */
288
289int fsl_usb2_mpc5121_init(struct platform_device *pdev)
290{
291 struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev);
292 struct clk *clk;
293 int err;
294
295 clk = devm_clk_get(pdev->dev.parent, "ipg");
296 if (IS_ERR(clk)) {
297 dev_err(&pdev->dev, "failed to get clk\n");
298 return PTR_ERR(clk);
299 }
300 err = clk_prepare_enable(clk);
301 if (err) {
302 dev_err(&pdev->dev, "failed to enable clk\n");
303 return err;
304 }
305 pdata->clk = clk;
306
307 if (pdata->phy_mode == FSL_USB2_PHY_UTMI_WIDE) {
308 u32 reg = 0;
309
310 if (pdata->invert_drvvbus)
311 reg |= GC_PPP;
312
313 if (pdata->invert_pwr_fault)
314 reg |= GC_PFP;
315
316 out_be32(pdata->regs + ISIPHYCTRL, PHYCTRL_PHYE | PHYCTRL_PXE);
317 out_be32(pdata->regs + USBGENCTRL, reg);
318 }
319 return 0;
320}
321
322static void fsl_usb2_mpc5121_exit(struct platform_device *pdev)
323{
324 struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev);
325
326 pdata->regs = NULL;
327
328 if (pdata->clk)
329 clk_disable_unprepare(pdata->clk);
330}
331
332static struct fsl_usb2_platform_data fsl_usb2_mpc5121_pd = {
333 .big_endian_desc = 1,
334 .big_endian_mmio = 1,
335 .es = 1,
336 .have_sysif_regs = 0,
337 .le_setup_buf = 1,
338 .init = fsl_usb2_mpc5121_init,
339 .exit = fsl_usb2_mpc5121_exit,
340};
341#endif /* CONFIG_PPC_MPC512x */
342
343static struct fsl_usb2_platform_data fsl_usb2_mpc8xxx_pd = {
344 .have_sysif_regs = 1,
345};
346
347static const struct of_device_id fsl_usb2_mph_dr_of_match[] = {
348 { .compatible = "fsl-usb2-mph", .data = &fsl_usb2_mpc8xxx_pd, },
349 { .compatible = "fsl-usb2-dr", .data = &fsl_usb2_mpc8xxx_pd, },
350#ifdef CONFIG_PPC_MPC512x
351 { .compatible = "fsl,mpc5121-usb2-dr", .data = &fsl_usb2_mpc5121_pd, },
352#endif
353 {},
354};
355MODULE_DEVICE_TABLE(of, fsl_usb2_mph_dr_of_match);
356
357static struct platform_driver fsl_usb2_mph_dr_driver = {
358 .driver = {
359 .name = "fsl-usb2-mph-dr",
360 .of_match_table = fsl_usb2_mph_dr_of_match,
361 },
362 .probe = fsl_usb2_mph_dr_of_probe,
363 .remove = fsl_usb2_mph_dr_of_remove,
364};
365
366module_platform_driver(fsl_usb2_mph_dr_driver);
367
368MODULE_DESCRIPTION("FSL MPH DR OF devices driver");
369MODULE_AUTHOR("Anatolij Gustschin <agust@denx.de>");
370MODULE_LICENSE("GPL");