3 * Gerry Hamel, geh@ti.com, Texas Instruments
6 * linux/drivers/usb/device/bi/omap.h
7 * Register definitions for TI OMAP1510 USB bus interface driver
9 * Author: MontaVista Software, Inc.
12 * 2003 (c) MontaVista Software, Inc. This file is licensed under
13 * the terms of the GNU General Public License version 2. This program
14 * is licensed "as is" without any warranty of any kind, whether express
18 #ifndef __USBDCORE_OMAP1510_H__
19 #define __USBDCORE_OMAP1510_H__
23 * 13.2 MPU Register Map
26 /* Table 13-1. USB Function Module Registers (endpoint) */
27 #define UDC_BASE 0xFFFB4000
28 #define UDC_OFFSET(offset) (UDC_BASE + (offset))
29 #define UDC_REV UDC_OFFSET(0x0) /* Revision */
30 #define UDC_EP_NUM UDC_OFFSET(0x4) /* Endpoint selection */
31 #define UDC_DATA UDC_OFFSET(0x08) /* Data */
32 #define UDC_CTRL UDC_OFFSET(0x0C) /* Control */
33 #define UDC_STAT_FLG UDC_OFFSET(0x10) /* Status flag */
34 #define UDC_RXFSTAT UDC_OFFSET(0x14) /* Receive FIFO status */
35 #define UDC_SYSCON1 UDC_OFFSET(0x18) /* System configuration 1 */
36 #define UDC_SYSCON2 UDC_OFFSET(0x1C) /* System configuration 2 */
37 #define UDC_DEVSTAT UDC_OFFSET(0x20) /* Device status */
38 #define UDC_SOF UDC_OFFSET(0x24) /* Start of frame */
39 #define UDC_IRQ_EN UDC_OFFSET(0x28) /* Interrupt enable */
40 #define UDC_DMA_IRQ_EN UDC_OFFSET(0x2C) /* DMA interrupt enable */
41 #define UDC_IRQ_SRC UDC_OFFSET(0x30) /* Interrupt source */
42 #define UDC_EPN_STAT UDC_OFFSET(0x34) /* Endpoint interrupt status */
43 #define UDC_DMAN_STAT UDC_OFFSET(0x3C) /* DMA endpoint interrupt status */
45 /* IRQ_EN register fields */
46 #define UDC_Sof_IE (1 << 7) /* Start-of-frame interrupt enabled */
47 #define UDC_EPn_RX_IE (1 << 5) /* Receive endpoint interrupt enabled */
48 #define UDC_EPn_TX_IE (1 << 4) /* Transmit endpoint interrupt enabled */
49 #define UDC_DS_Chg_IE (1 << 3) /* Device state changed interrupt enabled */
50 #define UDC_EP0_IE (1 << 0) /* EP0 transaction interrupt enabled */
52 /* IRQ_SRC register fields */
53 #define UDC_TXn_Done (1 << 10) /* Transmit DMA channel n done */
54 #define UDC_RXn_Cnt (1 << 9) /* Receive DMA channel n transactions count */
55 #define UDC_RXn_EOT (1 << 8) /* Receive DMA channel n end of transfer */
56 #define UDC_SOF_Flg (1 << 7) /* Start-of-frame interrupt flag */
57 #define UDC_EPn_RX (1 << 5) /* Endpoint n OUT transaction */
58 #define UDC_EPn_TX (1 << 4) /* Endpoint n IN transaction */
59 #define UDC_DS_Chg (1 << 3) /* Device state changed */
60 #define UDC_Setup (1 << 2) /* Setup transaction */
61 #define UDC_EP0_RX (1 << 1) /* EP0 OUT transaction */
62 #define UDC_EP0_TX (1 << 0) /* EP0 IN transaction */
64 /* DEVSTAT register fields, 14.2.9 */
65 #define UDC_R_WK_OK (1 << 6) /* Remote wakeup granted */
66 #define UDC_USB_Reset (1 << 5) /* USB reset signalling is active */
67 #define UDC_SUS (1 << 4) /* Suspended state */
68 #define UDC_CFG (1 << 3) /* Configured state */
69 #define UDC_ADD (1 << 2) /* Addressed state */
70 #define UDC_DEF (1 << 1) /* Default state */
71 #define UDC_ATT (1 << 0) /* Attached state */
73 /* SYSCON1 register fields */
74 #define UDC_Cfg_Lock (1 << 8) /* Device configuration locked */
75 #define UDC_Nak_En (1 << 4) /* NAK enable */
76 #define UDC_Self_Pwr (1 << 2) /* Device is self-powered */
77 #define UDC_Soff_Dis (1 << 1) /* Shutoff disabled */
78 #define UDC_Pullup_En (1 << 0) /* External pullup enabled */
80 /* SYSCON2 register fields */
81 #define UDC_Rmt_Wkp (1 << 6) /* Remote wakeup */
82 #define UDC_Stall_Cmd (1 << 5) /* Stall endpoint */
83 #define UDC_Dev_Cfg (1 << 3) /* Device configured */
84 #define UDC_Clr_Cfg (1 << 2) /* Clear configured */
87 * Select and enable endpoints
90 /* Table 13-1. USB Function Module Registers (endpoint configuration) */
91 #define UDC_EPBASE UDC_OFFSET(0x80) /* Endpoints base address */
92 #define UDC_EP0 UDC_EPBASE /* Control endpoint configuration */
93 #define UDC_EP_RX_BASE UDC_OFFSET(0x84) /* Receive endpoints base address */
94 #define UDC_EP_RX(endpoint) (UDC_EP_RX_BASE + ((endpoint) - 1) * 4)
95 #define UDC_EP_TX_BASE UDC_OFFSET(0xC4) /* Transmit endpoints base address */
96 #define UDC_EP_TX(endpoint) (UDC_EP_TX_BASE + ((endpoint) - 1) * 4)
98 /* EP_NUM register fields */
99 #define UDC_Setup_Sel (1 << 6) /* Setup FIFO select */
100 #define UDC_EP_Sel (1 << 5) /* TX/RX FIFO select */
101 #define UDC_EP_Dir (1 << 4) /* Endpoint direction */
103 /* CTRL register fields */
104 #define UDC_Clr_Halt (1 << 7) /* Clear halt endpoint */
105 #define UDC_Set_Halt (1 << 6) /* Set halt endpoint */
106 #define UDC_Set_FIFO_En (1 << 2) /* Set FIFO enable */
107 #define UDC_Clr_EP (1 << 1) /* Clear endpoint */
108 #define UDC_Reset_EP (1 << 0) /* Reset endpoint */
110 /* STAT_FLG register fields */
111 #define UDC_Miss_In (1 << 14)
112 #define UDC_Data_Flush (1 << 13)
113 #define UDC_ISO_Err (1 << 12)
114 #define UDC_ISO_FIFO_Empty (1 << 9)
115 #define UDC_ISO_FIFO_Full (1 << 8)
116 #define UDC_EP_Halted (1 << 6)
117 #define UDC_STALL (1 << 5)
118 #define UDC_NAK (1 << 4)
119 #define UDC_ACK (1 << 3)
120 #define UDC_FIFO_En (1 << 2)
121 #define UDC_Non_ISO_FIFO_Empty (1 << 1)
122 #define UDC_Non_ISO_FIFO_Full (1 << 0)
124 /* EPn_RX register fields */
125 #define UDC_EPn_RX_Valid (1 << 15) /* valid */
126 #define UDC_EPn_RX_Db (1 << 14) /* double-buffer */
127 #define UDC_EPn_RX_Iso (1 << 11) /* isochronous */
129 /* EPn_TX register fields */
130 #define UDC_EPn_TX_Valid (1 << 15) /* valid */
131 #define UDC_EPn_TX_Db (1 << 14) /* double-buffer */
132 #define UDC_EPn_TX_Iso (1 << 11) /* isochronous */
134 #define EP0_PACKETSIZE 0x40
136 /* physical to logical endpoint mapping
137 * Physical endpoints are an index into device->bus->endpoint_array.
138 * Logical endpoints are endpoints 0 to 15 IN and OUT as defined in
139 * the USB specification.
141 * physical ep logical ep direction endpoint_address
142 * 0 0 IN and OUT 0x00
143 * 1 to 15 1 to 15 OUT 0x01 to 0x0f
144 * 16 to 30 1 to 15 IN 0x81 to 0x8f
146 #define PHYS_EP_TO_EP_ADDR(ep) (((ep) < 16) ? (ep) : (((ep) - 15) | 0x80))
147 #define EP_ADDR_TO_PHYS_EP(a) (((a) & 0x80) ? (((a) & ~0x80) + 15) : (a))
149 /* MOD_CONF_CTRL_0 bits (FIXME: move to board hardware.h ?) */
150 #define CONF_MOD_USB_W2FC_VBUS_MODE_R (1 << 17)
152 /* Other registers (may be) related to USB */
154 #define CLOCK_CTRL (0xFFFE0830)
155 #define APLL_CTRL (0xFFFE084C)
156 #define DPLL_CTRL (0xFFFE083C)
157 #define SOFT_REQ (0xFFFE0834)
158 #define STATUS_REQ (0xFFFE0840)
160 /* FUNC_MUX_CTRL_0 bits related to USB */
161 #define UDC_VBUS_CTRL (1 << 19)
162 #define UDC_VBUS_MODE (1 << 18)
164 /* OMAP Endpoint parameters */
165 #define EP0_MAX_PACKET_SIZE 64
166 #define UDC_OUT_ENDPOINT 2
167 #define UDC_OUT_PACKET_SIZE 64
168 #define UDC_IN_ENDPOINT 1
169 #define UDC_IN_PACKET_SIZE 64
170 #define UDC_INT_ENDPOINT 5
171 #define UDC_INT_PACKET_SIZE 16
172 #define UDC_BULK_PACKET_SIZE 16
176 void udc_set_nak(int epid);
177 void udc_unset_nak (int epid);
179 /* Higher level functions for abstracting away from specific device */
180 int udc_endpoint_write(struct usb_endpoint_instance *endpoint);
184 void udc_enable(struct usb_device_instance *device);
185 void udc_disable(void);
187 void udc_connect(void);
188 void udc_disconnect(void);
190 void udc_startup_events(struct usb_device_instance *device);
191 void udc_setup_ep(struct usb_device_instance *device, unsigned int ep, struct usb_endpoint_instance *endpoint);