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6#include <linux/init.h>
7#include <linux/platform_device.h>
8#include <linux/dma-mapping.h>
9#include <linux/delay.h>
10
11#include <asm/irq.h>
12#include "irqs.h"
13#include "devices.h"
14#include "cputype.h"
15#include "regs-usb.h"
16
17int __init pxa_register_device(struct pxa_device_desc *desc,
18 void *data, size_t size)
19{
20 struct platform_device *pdev;
21 struct resource res[2 + MAX_RESOURCE_DMA];
22 int i, ret = 0, nres = 0;
23
24 pdev = platform_device_alloc(desc->drv_name, desc->id);
25 if (pdev == NULL)
26 return -ENOMEM;
27
28 pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
29
30 memset(res, 0, sizeof(res));
31
32 if (desc->start != -1ul && desc->size > 0) {
33 res[nres].start = desc->start;
34 res[nres].end = desc->start + desc->size - 1;
35 res[nres].flags = IORESOURCE_MEM;
36 nres++;
37 }
38
39 if (desc->irq != NO_IRQ) {
40 res[nres].start = desc->irq;
41 res[nres].end = desc->irq;
42 res[nres].flags = IORESOURCE_IRQ;
43 nres++;
44 }
45
46 for (i = 0; i < MAX_RESOURCE_DMA; i++, nres++) {
47 if (desc->dma[i] == 0)
48 break;
49
50 res[nres].start = desc->dma[i];
51 res[nres].end = desc->dma[i];
52 res[nres].flags = IORESOURCE_DMA;
53 }
54
55 ret = platform_device_add_resources(pdev, res, nres);
56 if (ret) {
57 platform_device_put(pdev);
58 return ret;
59 }
60
61 if (data && size) {
62 ret = platform_device_add_data(pdev, data, size);
63 if (ret) {
64 platform_device_put(pdev);
65 return ret;
66 }
67 }
68
69 return platform_device_add(pdev);
70}
71
72#if IS_ENABLED(CONFIG_USB) || IS_ENABLED(CONFIG_USB_GADGET)
73#if IS_ENABLED(CONFIG_USB_MV_UDC) || IS_ENABLED(CONFIG_USB_EHCI_MV)
74#if IS_ENABLED(CONFIG_CPU_PXA910) || IS_ENABLED(CONFIG_CPU_PXA168)
75
76
77
78
79
80static unsigned int u2o_get(void __iomem *base, unsigned int offset)
81{
82 return readl_relaxed(base + offset);
83}
84
85static void u2o_set(void __iomem *base, unsigned int offset,
86 unsigned int value)
87{
88 u32 reg;
89
90 reg = readl_relaxed(base + offset);
91 reg |= value;
92 writel_relaxed(reg, base + offset);
93 readl_relaxed(base + offset);
94}
95
96static void u2o_clear(void __iomem *base, unsigned int offset,
97 unsigned int value)
98{
99 u32 reg;
100
101 reg = readl_relaxed(base + offset);
102 reg &= ~value;
103 writel_relaxed(reg, base + offset);
104 readl_relaxed(base + offset);
105}
106
107static void u2o_write(void __iomem *base, unsigned int offset,
108 unsigned int value)
109{
110 writel_relaxed(value, base + offset);
111 readl_relaxed(base + offset);
112}
113
114
115static DEFINE_MUTEX(phy_lock);
116static int phy_init_cnt;
117
118static int usb_phy_init_internal(void __iomem *base)
119{
120 int loops;
121
122 pr_info("Init usb phy!!!\n");
123
124
125 if (cpu_is_pxa910()) {
126 u2o_set(base, UTMI_CTRL, (1<<UTMI_CTRL_INPKT_DELAY_SOF_SHIFT)
127 | (1<<UTMI_CTRL_PU_REF_SHIFT));
128 }
129
130 u2o_set(base, UTMI_CTRL, 1<<UTMI_CTRL_PLL_PWR_UP_SHIFT);
131 u2o_set(base, UTMI_CTRL, 1<<UTMI_CTRL_PWR_UP_SHIFT);
132
133
134 u2o_clear(base, UTMI_PLL, UTMI_PLL_PLLVDD18_MASK
135 | UTMI_PLL_PLLVDD12_MASK | UTMI_PLL_PLLCALI12_MASK
136 | UTMI_PLL_FBDIV_MASK | UTMI_PLL_REFDIV_MASK
137 | UTMI_PLL_ICP_MASK | UTMI_PLL_KVCO_MASK);
138
139 u2o_set(base, UTMI_PLL, 0xee<<UTMI_PLL_FBDIV_SHIFT
140 | 0xb<<UTMI_PLL_REFDIV_SHIFT | 3<<UTMI_PLL_PLLVDD18_SHIFT
141 | 3<<UTMI_PLL_PLLVDD12_SHIFT | 3<<UTMI_PLL_PLLCALI12_SHIFT
142 | 1<<UTMI_PLL_ICP_SHIFT | 3<<UTMI_PLL_KVCO_SHIFT);
143
144
145 u2o_clear(base, UTMI_TX, UTMI_TX_REG_EXT_FS_RCAL_EN_MASK
146 | UTMI_TX_TXVDD12_MASK | UTMI_TX_CK60_PHSEL_MASK
147 | UTMI_TX_IMPCAL_VTH_MASK | UTMI_TX_REG_EXT_FS_RCAL_MASK
148 | UTMI_TX_AMP_MASK);
149 u2o_set(base, UTMI_TX, 3<<UTMI_TX_TXVDD12_SHIFT
150 | 4<<UTMI_TX_CK60_PHSEL_SHIFT | 4<<UTMI_TX_IMPCAL_VTH_SHIFT
151 | 8<<UTMI_TX_REG_EXT_FS_RCAL_SHIFT | 3<<UTMI_TX_AMP_SHIFT);
152
153
154 u2o_clear(base, UTMI_RX, UTMI_RX_SQ_THRESH_MASK
155 | UTMI_REG_SQ_LENGTH_MASK);
156 u2o_set(base, UTMI_RX, 7<<UTMI_RX_SQ_THRESH_SHIFT
157 | 2<<UTMI_REG_SQ_LENGTH_SHIFT);
158
159
160 if (cpu_is_pxa168())
161
162
163 u2o_write(base, UTMI_IVREF, 0x4bf);
164
165
166 udelay(200);
167 u2o_set(base, UTMI_PLL, VCOCAL_START);
168 udelay(40);
169 u2o_clear(base, UTMI_PLL, VCOCAL_START);
170
171
172 udelay(400);
173 u2o_set(base, UTMI_TX, REG_RCAL_START);
174 udelay(40);
175 u2o_clear(base, UTMI_TX, REG_RCAL_START);
176 udelay(400);
177
178
179 loops = 0;
180 while ((u2o_get(base, UTMI_PLL) & PLL_READY) == 0) {
181 mdelay(1);
182 loops++;
183 if (loops > 100) {
184 printk(KERN_WARNING "calibrate timeout, UTMI_PLL %x\n",
185 u2o_get(base, UTMI_PLL));
186 break;
187 }
188 }
189
190 if (cpu_is_pxa168()) {
191 u2o_set(base, UTMI_RESERVE, 1 << 5);
192
193 u2o_write(base, UTMI_OTG_ADDON, 1);
194 }
195
196 return 0;
197}
198
199static int usb_phy_deinit_internal(void __iomem *base)
200{
201 pr_info("Deinit usb phy!!!\n");
202
203 if (cpu_is_pxa168())
204 u2o_clear(base, UTMI_OTG_ADDON, UTMI_OTG_ADDON_OTG_ON);
205
206 u2o_clear(base, UTMI_CTRL, UTMI_CTRL_RXBUF_PDWN);
207 u2o_clear(base, UTMI_CTRL, UTMI_CTRL_TXBUF_PDWN);
208 u2o_clear(base, UTMI_CTRL, UTMI_CTRL_USB_CLK_EN);
209 u2o_clear(base, UTMI_CTRL, 1<<UTMI_CTRL_PWR_UP_SHIFT);
210 u2o_clear(base, UTMI_CTRL, 1<<UTMI_CTRL_PLL_PWR_UP_SHIFT);
211
212 return 0;
213}
214
215int pxa_usb_phy_init(void __iomem *phy_reg)
216{
217 mutex_lock(&phy_lock);
218 if (phy_init_cnt++ == 0)
219 usb_phy_init_internal(phy_reg);
220 mutex_unlock(&phy_lock);
221 return 0;
222}
223
224void pxa_usb_phy_deinit(void __iomem *phy_reg)
225{
226 WARN_ON(phy_init_cnt == 0);
227
228 mutex_lock(&phy_lock);
229 if (--phy_init_cnt == 0)
230 usb_phy_deinit_internal(phy_reg);
231 mutex_unlock(&phy_lock);
232}
233#endif
234#endif
235#endif
236
237#if IS_ENABLED(CONFIG_USB_SUPPORT)
238static u64 __maybe_unused usb_dma_mask = ~(u32)0;
239
240#if IS_ENABLED(CONFIG_PHY_PXA_USB)
241struct resource pxa168_usb_phy_resources[] = {
242 [0] = {
243 .start = PXA168_U2O_PHYBASE,
244 .end = PXA168_U2O_PHYBASE + USB_PHY_RANGE,
245 .flags = IORESOURCE_MEM,
246 },
247};
248
249struct platform_device pxa168_device_usb_phy = {
250 .name = "pxa-usb-phy",
251 .id = -1,
252 .resource = pxa168_usb_phy_resources,
253 .num_resources = ARRAY_SIZE(pxa168_usb_phy_resources),
254 .dev = {
255 .dma_mask = &usb_dma_mask,
256 .coherent_dma_mask = 0xffffffff,
257 }
258};
259#endif
260
261#if IS_ENABLED(CONFIG_USB_MV_UDC)
262struct resource pxa168_u2o_resources[] = {
263
264 [0] = {
265 .start = PXA168_U2O_REGBASE + U2x_CAPREGS_OFFSET,
266 .end = PXA168_U2O_REGBASE + USB_REG_RANGE,
267 .flags = IORESOURCE_MEM,
268 .name = "capregs",
269 },
270
271 [1] = {
272 .start = PXA168_U2O_PHYBASE,
273 .end = PXA168_U2O_PHYBASE + USB_PHY_RANGE,
274 .flags = IORESOURCE_MEM,
275 .name = "phyregs",
276 },
277 [2] = {
278 .start = IRQ_PXA168_USB1,
279 .end = IRQ_PXA168_USB1,
280 .flags = IORESOURCE_IRQ,
281 },
282};
283
284struct platform_device pxa168_device_u2o = {
285 .name = "mv-udc",
286 .id = -1,
287 .resource = pxa168_u2o_resources,
288 .num_resources = ARRAY_SIZE(pxa168_u2o_resources),
289 .dev = {
290 .dma_mask = &usb_dma_mask,
291 .coherent_dma_mask = 0xffffffff,
292 }
293};
294#endif
295
296#if IS_ENABLED(CONFIG_USB_EHCI_MV_U2O)
297struct resource pxa168_u2oehci_resources[] = {
298 [0] = {
299 .start = PXA168_U2O_REGBASE,
300 .end = PXA168_U2O_REGBASE + USB_REG_RANGE,
301 .flags = IORESOURCE_MEM,
302 },
303 [1] = {
304 .start = IRQ_PXA168_USB1,
305 .end = IRQ_PXA168_USB1,
306 .flags = IORESOURCE_IRQ,
307 },
308};
309
310struct platform_device pxa168_device_u2oehci = {
311 .name = "pxa-u2oehci",
312 .id = -1,
313 .dev = {
314 .dma_mask = &usb_dma_mask,
315 .coherent_dma_mask = 0xffffffff,
316 },
317
318 .num_resources = ARRAY_SIZE(pxa168_u2oehci_resources),
319 .resource = pxa168_u2oehci_resources,
320};
321#endif
322
323#if IS_ENABLED(CONFIG_USB_MV_OTG)
324struct resource pxa168_u2ootg_resources[] = {
325
326 [0] = {
327 .start = PXA168_U2O_REGBASE + U2x_CAPREGS_OFFSET,
328 .end = PXA168_U2O_REGBASE + USB_REG_RANGE,
329 .flags = IORESOURCE_MEM,
330 .name = "capregs",
331 },
332
333 [1] = {
334 .start = PXA168_U2O_PHYBASE,
335 .end = PXA168_U2O_PHYBASE + USB_PHY_RANGE,
336 .flags = IORESOURCE_MEM,
337 .name = "phyregs",
338 },
339 [2] = {
340 .start = IRQ_PXA168_USB1,
341 .end = IRQ_PXA168_USB1,
342 .flags = IORESOURCE_IRQ,
343 },
344};
345
346struct platform_device pxa168_device_u2ootg = {
347 .name = "mv-otg",
348 .id = -1,
349 .dev = {
350 .dma_mask = &usb_dma_mask,
351 .coherent_dma_mask = 0xffffffff,
352 },
353
354 .num_resources = ARRAY_SIZE(pxa168_u2ootg_resources),
355 .resource = pxa168_u2ootg_resources,
356};
357#endif
358
359#endif
360
