arch/arm/include/asm/ehci-omap.h

   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(int index, 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_ */