2 * Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
3 * Copyright (C) 2010 Freescale Semiconductor, Inc.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software Foundation,
17 * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #include <linux/platform_device.h>
23 #include <mach/hardware.h>
24 #include <mach/mxc_ehci.h>
26 #define USBCTRL_OTGBASE_OFFSET 0x600
28 #define MX31_OTG_SIC_SHIFT 29
29 #define MX31_OTG_SIC_MASK (0x3 << MX31_OTG_SIC_SHIFT)
30 #define MX31_OTG_PM_BIT (1 << 24)
32 #define MX31_H2_SIC_SHIFT 21
33 #define MX31_H2_SIC_MASK (0x3 << MX31_H2_SIC_SHIFT)
34 #define MX31_H2_PM_BIT (1 << 16)
35 #define MX31_H2_DT_BIT (1 << 5)
37 #define MX31_H1_SIC_SHIFT 13
38 #define MX31_H1_SIC_MASK (0x3 << MX31_H1_SIC_SHIFT)
39 #define MX31_H1_PM_BIT (1 << 8)
40 #define MX31_H1_DT_BIT (1 << 4)
42 #define MX35_OTG_SIC_SHIFT 29
43 #define MX35_OTG_SIC_MASK (0x3 << MX35_OTG_SIC_SHIFT)
44 #define MX35_OTG_PM_BIT (1 << 24)
46 #define MX35_H1_SIC_SHIFT 21
47 #define MX35_H1_SIC_MASK (0x3 << MX35_H1_SIC_SHIFT)
48 #define MX35_H1_PM_BIT (1 << 8)
49 #define MX35_H1_IPPUE_UP_BIT (1 << 7)
50 #define MX35_H1_IPPUE_DOWN_BIT (1 << 6)
51 #define MX35_H1_TLL_BIT (1 << 5)
52 #define MX35_H1_USBTE_BIT (1 << 4)
54 #define MXC_OTG_OFFSET 0
55 #define MXC_H1_OFFSET 0x200
58 #define MXC_OTG_UCTRL_OWIE_BIT (1 << 27) /* OTG wakeup intr enable */
59 #define MXC_OTG_UCTRL_OPM_BIT (1 << 24) /* OTG power mask */
60 #define MXC_H1_UCTRL_H1UIE_BIT (1 << 12) /* Host1 ULPI interrupt enable */
61 #define MXC_H1_UCTRL_H1WIE_BIT (1 << 11) /* HOST1 wakeup intr enable */
62 #define MXC_H1_UCTRL_H1PM_BIT (1 << 8) /* HOST1 power mask */
64 /* USB_PHY_CTRL_FUNC */
65 #define MXC_OTG_PHYCTRL_OC_DIS_BIT (1 << 8) /* OTG Disable Overcurrent Event */
66 #define MXC_H1_OC_DIS_BIT (1 << 5) /* UH1 Disable Overcurrent Event */
68 #define MXC_USBCMD_OFFSET 0x140
71 #define MXC_UCMD_ITC_NO_THRESHOLD_MASK (~(0xff << 16)) /* Interrupt Threshold Control */
73 int mxc_initialize_usb_hw(int port, unsigned int flags)
76 #if defined(CONFIG_ARCH_MX25)
78 v = readl(MX25_IO_ADDRESS(MX25_OTG_BASE_ADDR +
79 USBCTRL_OTGBASE_OFFSET));
82 case 0: /* OTG port */
83 v &= ~(MX35_OTG_SIC_MASK | MX35_OTG_PM_BIT);
84 v |= (flags & MXC_EHCI_INTERFACE_MASK)
85 << MX35_OTG_SIC_SHIFT;
86 if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
91 v &= ~(MX35_H1_SIC_MASK | MX35_H1_PM_BIT | MX35_H1_TLL_BIT |
92 MX35_H1_USBTE_BIT | MX35_H1_IPPUE_DOWN_BIT | MX35_H1_IPPUE_UP_BIT);
93 v |= (flags & MXC_EHCI_INTERFACE_MASK)
95 if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
98 if (!(flags & MXC_EHCI_TTL_ENABLED))
101 if (flags & MXC_EHCI_INTERNAL_PHY)
102 v |= MX35_H1_USBTE_BIT;
104 if (flags & MXC_EHCI_IPPUE_DOWN)
105 v |= MX35_H1_IPPUE_DOWN_BIT;
107 if (flags & MXC_EHCI_IPPUE_UP)
108 v |= MX35_H1_IPPUE_UP_BIT;
115 writel(v, MX25_IO_ADDRESS(MX25_OTG_BASE_ADDR +
116 USBCTRL_OTGBASE_OFFSET));
119 #endif /* CONFIG_ARCH_MX25 */
120 #if defined(CONFIG_ARCH_MX3)
122 v = readl(MX31_IO_ADDRESS(MX31_OTG_BASE_ADDR +
123 USBCTRL_OTGBASE_OFFSET));
126 case 0: /* OTG port */
127 v &= ~(MX31_OTG_SIC_MASK | MX31_OTG_PM_BIT);
128 v |= (flags & MXC_EHCI_INTERFACE_MASK)
129 << MX31_OTG_SIC_SHIFT;
130 if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
131 v |= MX31_OTG_PM_BIT;
134 case 1: /* H1 port */
135 v &= ~(MX31_H1_SIC_MASK | MX31_H1_PM_BIT | MX31_H1_DT_BIT);
136 v |= (flags & MXC_EHCI_INTERFACE_MASK)
137 << MX31_H1_SIC_SHIFT;
138 if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
141 if (!(flags & MXC_EHCI_TTL_ENABLED))
145 case 2: /* H2 port */
146 v &= ~(MX31_H2_SIC_MASK | MX31_H2_PM_BIT | MX31_H2_DT_BIT);
147 v |= (flags & MXC_EHCI_INTERFACE_MASK)
148 << MX31_H2_SIC_SHIFT;
149 if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
152 if (!(flags & MXC_EHCI_TTL_ENABLED))
160 writel(v, MX31_IO_ADDRESS(MX31_OTG_BASE_ADDR +
161 USBCTRL_OTGBASE_OFFSET));
166 v = readl(MX35_IO_ADDRESS(MX35_OTG_BASE_ADDR +
167 USBCTRL_OTGBASE_OFFSET));
170 case 0: /* OTG port */
171 v &= ~(MX35_OTG_SIC_MASK | MX35_OTG_PM_BIT);
172 v |= (flags & MXC_EHCI_INTERFACE_MASK)
173 << MX35_OTG_SIC_SHIFT;
174 if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
175 v |= MX35_OTG_PM_BIT;
178 case 1: /* H1 port */
179 v &= ~(MX35_H1_SIC_MASK | MX35_H1_PM_BIT | MX35_H1_TLL_BIT |
180 MX35_H1_USBTE_BIT | MX35_H1_IPPUE_DOWN_BIT | MX35_H1_IPPUE_UP_BIT);
181 v |= (flags & MXC_EHCI_INTERFACE_MASK)
182 << MX35_H1_SIC_SHIFT;
183 if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
186 if (!(flags & MXC_EHCI_TTL_ENABLED))
187 v |= MX35_H1_TLL_BIT;
189 if (flags & MXC_EHCI_INTERNAL_PHY)
190 v |= MX35_H1_USBTE_BIT;
192 if (flags & MXC_EHCI_IPPUE_DOWN)
193 v |= MX35_H1_IPPUE_DOWN_BIT;
195 if (flags & MXC_EHCI_IPPUE_UP)
196 v |= MX35_H1_IPPUE_UP_BIT;
203 writel(v, MX35_IO_ADDRESS(MX35_OTG_BASE_ADDR +
204 USBCTRL_OTGBASE_OFFSET));
207 #endif /* CONFIG_ARCH_MX3 */
208 #ifdef CONFIG_MACH_MX27
210 /* On i.MX27 we can use the i.MX31 USBCTRL bits, they
213 v = readl(MX27_IO_ADDRESS(MX27_OTG_BASE_ADDR +
214 USBCTRL_OTGBASE_OFFSET));
216 case 0: /* OTG port */
217 v &= ~(MX31_OTG_SIC_MASK | MX31_OTG_PM_BIT);
218 v |= (flags & MXC_EHCI_INTERFACE_MASK)
219 << MX31_OTG_SIC_SHIFT;
220 if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
221 v |= MX31_OTG_PM_BIT;
223 case 1: /* H1 port */
224 v &= ~(MX31_H1_SIC_MASK | MX31_H1_PM_BIT | MX31_H1_DT_BIT);
225 v |= (flags & MXC_EHCI_INTERFACE_MASK)
226 << MX31_H1_SIC_SHIFT;
227 if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
230 if (!(flags & MXC_EHCI_TTL_ENABLED))
234 case 2: /* H2 port */
235 v &= ~(MX31_H2_SIC_MASK | MX31_H2_PM_BIT | MX31_H2_DT_BIT);
236 v |= (flags & MXC_EHCI_INTERFACE_MASK)
237 << MX31_H2_SIC_SHIFT;
238 if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
241 if (!(flags & MXC_EHCI_TTL_ENABLED))
248 writel(v, MX27_IO_ADDRESS(MX27_OTG_BASE_ADDR +
249 USBCTRL_OTGBASE_OFFSET));
252 #endif /* CONFIG_MACH_MX27 */
253 #ifdef CONFIG_ARCH_MX51
255 void __iomem *usb_base;
260 usb_base = ioremap(MX51_OTG_BASE_ADDR, SZ_4K);
263 case 0: /* OTG port */
264 usbotg_base = usb_base + MXC_OTG_OFFSET;
266 case 1: /* Host 1 port */
267 usbotg_base = usb_base + MXC_H1_OFFSET;
270 printk(KERN_ERR"%s no such port %d\n", __func__, port);
274 usbother_base = usb_base + MX5_USBOTHER_REGS_OFFSET;
277 case 0: /*OTG port */
278 if (flags & MXC_EHCI_INTERNAL_PHY) {
279 v = __raw_readl(usbother_base + MXC_USB_PHY_CTR_FUNC_OFFSET);
281 if (flags & MXC_EHCI_POWER_PINS_ENABLED)
282 v |= (MXC_OTG_PHYCTRL_OC_DIS_BIT | MXC_OTG_UCTRL_OPM_BIT); /* OC/USBPWR is not used */
284 v &= ~(MXC_OTG_PHYCTRL_OC_DIS_BIT | MXC_OTG_UCTRL_OPM_BIT); /* OC/USBPWR is used */
285 __raw_writel(v, usbother_base + MXC_USB_PHY_CTR_FUNC_OFFSET);
287 v = __raw_readl(usbother_base + MXC_USBCTRL_OFFSET);
288 if (flags & MXC_EHCI_WAKEUP_ENABLED)
289 v |= MXC_OTG_UCTRL_OWIE_BIT;/* OTG wakeup enable */
291 v &= ~MXC_OTG_UCTRL_OWIE_BIT;/* OTG wakeup disable */
292 __raw_writel(v, usbother_base + MXC_USBCTRL_OFFSET);
297 v = __raw_readl(usbother_base + MXC_USBCTRL_OFFSET);
298 if (flags & MXC_EHCI_WAKEUP_ENABLED)
299 v &= ~(MXC_H1_UCTRL_H1WIE_BIT | MXC_H1_UCTRL_H1UIE_BIT);/* HOST1 wakeup/ULPI intr disable */
301 v &= ~(MXC_H1_UCTRL_H1WIE_BIT | MXC_H1_UCTRL_H1UIE_BIT);/* HOST1 wakeup/ULPI intr disable */
303 if (flags & MXC_EHCI_POWER_PINS_ENABLED)
304 v &= ~MXC_H1_UCTRL_H1PM_BIT; /* HOST1 power mask used*/
306 v |= MXC_H1_UCTRL_H1PM_BIT; /* HOST1 power mask used*/
307 __raw_writel(v, usbother_base + MXC_USBCTRL_OFFSET);
309 v = __raw_readl(usbother_base + MXC_USB_PHY_CTR_FUNC_OFFSET);
310 if (flags & MXC_EHCI_POWER_PINS_ENABLED)
311 v &= ~MXC_H1_OC_DIS_BIT; /* OC is used */
313 v |= MXC_H1_OC_DIS_BIT; /* OC is not used */
314 __raw_writel(v, usbother_base + MXC_USB_PHY_CTR_FUNC_OFFSET);
316 v = __raw_readl(usbotg_base + MXC_USBCMD_OFFSET);
317 if (flags & MXC_EHCI_ITC_NO_THRESHOLD)
318 /* Interrupt Threshold Control:Immediate (no threshold) */
319 v &= MXC_UCMD_ITC_NO_THRESHOLD_MASK;
320 __raw_writel(v, usbotg_base + MXC_USBCMD_OFFSET);
330 "%s() unable to setup USBCONTROL for this CPU\n", __func__);
333 EXPORT_SYMBOL(mxc_initialize_usb_hw);