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11#include <common.h>
12#include <dm.h>
13#include <log.h>
14#include <serial.h>
15#include <dm/device-internal.h>
16#include <dm/device_compat.h>
17#include <dm/lists.h>
18#include <linux/err.h>
19#include <linux/usb/otg.h>
20#include <asm/global_data.h>
21#include <asm/omap_common.h>
22#include <asm/omap_musb.h>
23#include <twl4030.h>
24#include <twl6030.h>
25#include "linux-compat.h"
26#include "musb_core.h"
27#include "omap2430.h"
28#include "musb_uboot.h"
29
30static inline void omap2430_low_level_exit(struct musb *musb)
31{
32 u32 l;
33
34
35 l = musb_readl(musb->mregs, OTG_FORCESTDBY);
36 l |= ENABLEFORCE;
37 musb_writel(musb->mregs, OTG_FORCESTDBY, l);
38}
39
40static inline void omap2430_low_level_init(struct musb *musb)
41{
42 u32 l;
43
44 l = musb_readl(musb->mregs, OTG_FORCESTDBY);
45 l &= ~ENABLEFORCE;
46 musb_writel(musb->mregs, OTG_FORCESTDBY, l);
47}
48
49
50static int omap2430_musb_init(struct musb *musb)
51{
52 u32 l;
53 int status = 0;
54 unsigned long int start;
55
56 struct omap_musb_board_data *data =
57 (struct omap_musb_board_data *)musb->controller;
58
59
60 musb_writel(musb->mregs, OTG_SYSCONFIG, SOFTRST);
61
62 start = get_timer(0);
63
64 while (1) {
65 l = musb_readl(musb->mregs, OTG_SYSCONFIG);
66 if ((l & SOFTRST) == 0)
67 break;
68
69 if (get_timer(start) > (CONFIG_SYS_HZ / 1000)) {
70 dev_err(musb->controller, "MUSB reset is taking too long\n");
71 return -ENODEV;
72 }
73 }
74
75 l = musb_readl(musb->mregs, OTG_INTERFSEL);
76
77 if (data->interface_type == MUSB_INTERFACE_UTMI) {
78
79 l &= ~ULPI_12PIN;
80 l |= UTMI_8BIT;
81 } else {
82 l |= ULPI_12PIN;
83 }
84
85 musb_writel(musb->mregs, OTG_INTERFSEL, l);
86
87 pr_debug("HS USB OTG: revision 0x%x, sysconfig 0x%02x, "
88 "sysstatus 0x%x, intrfsel 0x%x, simenable 0x%x\n",
89 musb_readl(musb->mregs, OTG_REVISION),
90 musb_readl(musb->mregs, OTG_SYSCONFIG),
91 musb_readl(musb->mregs, OTG_SYSSTATUS),
92 musb_readl(musb->mregs, OTG_INTERFSEL),
93 musb_readl(musb->mregs, OTG_SIMENABLE));
94 return 0;
95
96err1:
97 return status;
98}
99
100static int omap2430_musb_enable(struct musb *musb)
101{
102#ifdef CONFIG_TWL4030_USB
103 if (twl4030_usb_ulpi_init()) {
104 serial_printf("ERROR: %s Could not initialize PHY\n",
105 __PRETTY_FUNCTION__);
106 }
107#endif
108
109#ifdef CONFIG_TWL6030_POWER
110 twl6030_usb_device_settings();
111#endif
112
113#ifdef CONFIG_OMAP44XX
114 u32 *usbotghs_control = (u32 *)((*ctrl)->control_usbotghs_ctrl);
115 *usbotghs_control = USBOTGHS_CONTROL_AVALID |
116 USBOTGHS_CONTROL_VBUSVALID | USBOTGHS_CONTROL_IDDIG;
117#endif
118
119 return 0;
120}
121
122static void omap2430_musb_disable(struct musb *musb)
123{
124
125}
126
127static int omap2430_musb_exit(struct musb *musb)
128{
129 del_timer_sync(&musb_idle_timer);
130
131 omap2430_low_level_exit(musb);
132
133 return 0;
134}
135
136const struct musb_platform_ops omap2430_ops = {
137 .init = omap2430_musb_init,
138 .exit = omap2430_musb_exit,
139 .enable = omap2430_musb_enable,
140 .disable = omap2430_musb_disable,
141};
142
143#if CONFIG_IS_ENABLED(DM_USB)
144
145struct omap2430_musb_plat {
146 void *base;
147 void *ctrl_mod_base;
148 struct musb_hdrc_platform_data plat;
149 struct musb_hdrc_config musb_config;
150 struct omap_musb_board_data otg_board_data;
151};
152
153static int omap2430_musb_of_to_plat(struct udevice *dev)
154{
155 struct omap2430_musb_plat *plat = dev_get_plat(dev);
156 const void *fdt = gd->fdt_blob;
157 int node = dev_of_offset(dev);
158
159 plat->base = (void *)dev_read_addr_ptr(dev);
160
161 plat->musb_config.multipoint = fdtdec_get_int(fdt, node, "multipoint",
162 -1);
163 if (plat->musb_config.multipoint < 0) {
164 pr_err("MUSB multipoint DT entry missing\n");
165 return -ENOENT;
166 }
167
168 plat->musb_config.dyn_fifo = 1;
169 plat->musb_config.num_eps = fdtdec_get_int(fdt, node, "num-eps", -1);
170 if (plat->musb_config.num_eps < 0) {
171 pr_err("MUSB num-eps DT entry missing\n");
172 return -ENOENT;
173 }
174
175 plat->musb_config.ram_bits = fdtdec_get_int(fdt, node, "ram-bits", -1);
176 if (plat->musb_config.ram_bits < 0) {
177 pr_err("MUSB ram-bits DT entry missing\n");
178 return -ENOENT;
179 }
180
181 plat->plat.power = fdtdec_get_int(fdt, node, "power", -1);
182 if (plat->plat.power < 0) {
183 pr_err("MUSB power DT entry missing\n");
184 return -ENOENT;
185 }
186
187 plat->otg_board_data.interface_type = fdtdec_get_int(fdt, node,
188 "interface-type",
189 -1);
190 if (plat->otg_board_data.interface_type < 0) {
191 pr_err("MUSB interface-type DT entry missing\n");
192 return -ENOENT;
193 }
194
195#if 0
196 plat->plat.mode = fdtdec_get_int(fdt, node, "mode", -1);
197 if (plat->plat.mode < 0) {
198 pr_err("MUSB mode DT entry missing\n");
199 return -ENOENT;
200 }
201#else
202#ifdef CONFIG_USB_MUSB_HOST
203 plat->plat.mode = MUSB_HOST;
204#else
205 plat->plat.mode = MUSB_PERIPHERAL;
206#endif
207#endif
208 plat->otg_board_data.dev = dev;
209 plat->plat.config = &plat->musb_config;
210 plat->plat.platform_ops = &omap2430_ops;
211 plat->plat.board_data = &plat->otg_board_data;
212 return 0;
213}
214
215static int omap2430_musb_probe(struct udevice *dev)
216{
217#ifdef CONFIG_USB_MUSB_HOST
218 struct musb_host_data *host = dev_get_priv(dev);
219#else
220 struct musb *musbp;
221#endif
222 struct omap2430_musb_plat *plat = dev_get_plat(dev);
223 struct usb_bus_priv *priv = dev_get_uclass_priv(dev);
224 struct omap_musb_board_data *otg_board_data;
225 int ret = 0;
226 void *base = dev_read_addr_ptr(dev);
227
228 priv->desc_before_addr = true;
229
230 otg_board_data = &plat->otg_board_data;
231
232#ifdef CONFIG_USB_MUSB_HOST
233 host->host = musb_init_controller(&plat->plat,
234 (struct device *)otg_board_data,
235 plat->base);
236 if (!host->host) {
237 return -EIO;
238 }
239
240 ret = musb_lowlevel_init(host);
241#else
242 musbp = musb_register(&plat->plat, (struct device *)otg_board_data,
243 plat->base);
244 if (IS_ERR_OR_NULL(musbp))
245 return -EINVAL;
246#endif
247 return ret;
248}
249
250static int omap2430_musb_remove(struct udevice *dev)
251{
252 struct musb_host_data *host = dev_get_priv(dev);
253
254 musb_stop(host->host);
255
256 return 0;
257}
258
259static const struct udevice_id omap2430_musb_ids[] = {
260 { .compatible = "ti,omap3-musb" },
261 { .compatible = "ti,omap4-musb" },
262 { }
263};
264
265U_BOOT_DRIVER(omap2430_musb) = {
266 .name = "omap2430-musb",
267#ifdef CONFIG_USB_MUSB_HOST
268 .id = UCLASS_USB,
269#else
270 .id = UCLASS_USB_GADGET_GENERIC,
271#endif
272 .of_match = omap2430_musb_ids,
273 .of_to_plat = omap2430_musb_of_to_plat,
274 .probe = omap2430_musb_probe,
275 .remove = omap2430_musb_remove,
276#ifdef CONFIG_USB_MUSB_HOST
277 .ops = &musb_usb_ops,
278#endif
279 .plat_auto = sizeof(struct omap2430_musb_plat),
280 .priv_auto = sizeof(struct musb_host_data),
281};
282
283#endif
284
