xref: /openbmc/u-boot/arch/arm/include/asm/ehci-omap.h (revision e24278af)
1 /*
2  * OMAP EHCI port support
3  * Based on LINUX KERNEL
4  * drivers/usb/host/ehci-omap.c and drivers/mfd/omap-usb-host.c
5  *
6  * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com*
7  * Author: Govindraj R <govindraj.raja@ti.com>
8  *
9  * This program is free software: you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License version 2  of
11  * the License as published by the Free Software Foundation.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program. If not, see <http://www.gnu.org/licenses/>.
20  */
21 
22 #ifndef _OMAP_COMMON_EHCI_H_
23 #define _OMAP_COMMON_EHCI_H_
24 
25 enum usbhs_omap_port_mode {
26 	OMAP_USBHS_PORT_MODE_UNUSED,
27 	OMAP_EHCI_PORT_MODE_PHY,
28 	OMAP_EHCI_PORT_MODE_TLL,
29 	OMAP_EHCI_PORT_MODE_HSIC,
30 };
31 
32 #ifdef CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS
33 #define OMAP_HS_USB_PORTS	CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS
34 #else
35 #define OMAP_HS_USB_PORTS	3
36 #endif
37 
38 #define is_ehci_phy_mode(x)	((x) == OMAP_EHCI_PORT_MODE_PHY)
39 #define is_ehci_tll_mode(x)	((x) == OMAP_EHCI_PORT_MODE_TLL)
40 #define is_ehci_hsic_mode(x)	((x) == OMAP_EHCI_PORT_MODE_HSIC)
41 
42 /* Values of UHH_REVISION - Note: these are not given in the TRM */
43 #define OMAP_USBHS_REV1					0x00000010 /* OMAP3 */
44 #define OMAP_USBHS_REV2					0x50700100 /* OMAP4 */
45 #define OMAP_USBHS_REV2_1				0x50700101 /* OMAP5 */
46 
47 /* UHH Register Set */
48 #define OMAP_UHH_HOSTCONFIG_INCR4_BURST_EN		(1 << 2)
49 #define OMAP_UHH_HOSTCONFIG_INCR8_BURST_EN		(1 << 3)
50 #define OMAP_UHH_HOSTCONFIG_INCR16_BURST_EN		(1 << 4)
51 #define OMAP_UHH_HOSTCONFIG_INCRX_ALIGN_EN		(1 << 5)
52 
53 #define OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS		1
54 #define OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS		(1 << 11)
55 #define OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS		(1 << 12)
56 #define OMAP4_UHH_HOSTCONFIG_APP_START_CLK		(1 << 31)
57 
58 #define OMAP_P1_MODE_CLEAR				(3 << 16)
59 #define OMAP_P1_MODE_TLL				(1 << 16)
60 #define OMAP_P1_MODE_HSIC				(3 << 16)
61 #define OMAP_P2_MODE_CLEAR				(3 << 18)
62 #define OMAP_P2_MODE_TLL				(1 << 18)
63 #define OMAP_P2_MODE_HSIC				(3 << 18)
64 #define OMAP_P3_MODE_CLEAR				(3 << 20)
65 #define OMAP_P3_MODE_HSIC				(3 << 20)
66 
67 /* EHCI Register Set */
68 #define EHCI_INSNREG04_DISABLE_UNSUSPEND		(1 << 5)
69 #define EHCI_INSNREG05_ULPI_CONTROL_SHIFT		31
70 #define EHCI_INSNREG05_ULPI_PORTSEL_SHIFT		24
71 #define EHCI_INSNREG05_ULPI_OPSEL_SHIFT			22
72 #define EHCI_INSNREG05_ULPI_REGADD_SHIFT		16
73 
74 #define OMAP_REV1_TLL_CHANNEL_COUNT			3
75 #define OMAP_REV2_TLL_CHANNEL_COUNT			2
76 
77 /* TLL Register Set */
78 #define OMAP_TLL_CHANNEL_CONF(num)			(0x004 * num)
79 #define OMAP_TLL_CHANNEL_CONF_DRVVBUS			(1 << 16)
80 #define OMAP_TLL_CHANNEL_CONF_CHRGVBUS			(1 << 15)
81 #define OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF		(1 << 11)
82 #define OMAP_TLL_CHANNEL_CONF_CHANMODE_TRANSPARENT_UTMI	(2 << 1)
83 #define OMAP_TLL_CHANNEL_CONF_CHANEN			1
84 
85 struct omap_usbhs_board_data {
86 	enum usbhs_omap_port_mode port_mode[OMAP_HS_USB_PORTS];
87 };
88 
89 struct omap_usbtll {
90 	u32 rev;		/* 0x00 */
91 	u32 hwinfo;		/* 0x04 */
92 	u8 reserved1[0x8];
93 	u32 sysc;		/* 0x10 */
94 	u32 syss;		/* 0x14 */
95 	u32 irqst;		/* 0x18 */
96 	u32 irqen;		/* 0x1c */
97 	u8 reserved2[0x10];
98 	u32 shared_conf;	/* 0x30 */
99 	u8 reserved3[0xc];
100 	u32 channel_conf;	/* 0x40 */
101 };
102 
103 struct omap_uhh {
104 	u32 rev;	/* 0x00 */
105 	u32 hwinfo;	/* 0x04 */
106 	u8 reserved1[0x8];
107 	u32 sysc;	/* 0x10 */
108 	u32 syss;	/* 0x14 */
109 	u8 reserved2[0x28];
110 	u32 hostconfig;	/* 0x40 */
111 	u32 debugcsr;	/* 0x44 */
112 };
113 
114 struct omap_ehci {
115 	u32 hccapbase;		/* 0x00 */
116 	u32 hcsparams;		/* 0x04 */
117 	u32 hccparams;		/* 0x08 */
118 	u8 reserved1[0x04];
119 	u32 usbcmd;		/* 0x10 */
120 	u32 usbsts;		/* 0x14 */
121 	u32 usbintr;		/* 0x18 */
122 	u32 frindex;		/* 0x1c */
123 	u32 ctrldssegment;	/* 0x20 */
124 	u32 periodiclistbase;	/* 0x24 */
125 	u32 asysnclistaddr;	/* 0x28 */
126 	u8 reserved2[0x24];
127 	u32 configflag;		/* 0x50 */
128 	u32 portsc_i;		/* 0x54 */
129 	u8 reserved3[0x38];
130 	u32 insreg00;		/* 0x90 */
131 	u32 insreg01;		/* 0x94 */
132 	u32 insreg02;		/* 0x98 */
133 	u32 insreg03;		/* 0x9c */
134 	u32 insreg04;		/* 0xa0 */
135 	u32 insreg05_utmi_ulpi;	/* 0xa4 */
136 	u32 insreg06;		/* 0xa8 */
137 	u32 insreg07;		/* 0xac */
138 	u32 insreg08;		/* 0xb0 */
139 };
140 
141 /*
142  * FIXME: forward declaration of this structs needed because omap got the
143  * ehci implementation backwards. move out ehci_hcd_x from board files
144  */
145 struct ehci_hccr;
146 struct ehci_hcor;
147 
148 int omap_ehci_hcd_init(struct omap_usbhs_board_data *usbhs_pdata,
149 		struct ehci_hccr **hccr, struct ehci_hcor **hcor);
150 int omap_ehci_hcd_stop(void);
151 
152 #endif /* _OMAP_COMMON_EHCI_H_ */
153