mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 17:07:38 +00:00
127efc4fe8
This paramter will later be used to initialize OTG ports in host or device mode. Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
257 lines
9.2 KiB
C
257 lines
9.2 KiB
C
/*-
|
|
* Copyright (c) 2007-2008, Juniper Networks, Inc.
|
|
* Copyright (c) 2008, Michael Trimarchi <trimarchimichael@yahoo.it>
|
|
* All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation version 2 of
|
|
* the License.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef USB_EHCI_H
|
|
#define USB_EHCI_H
|
|
|
|
#include <usb.h>
|
|
|
|
#if !defined(CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS)
|
|
#define CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS 2
|
|
#endif
|
|
|
|
/*
|
|
* Register Space.
|
|
*/
|
|
struct ehci_hccr {
|
|
uint32_t cr_capbase;
|
|
#define HC_LENGTH(p) (((p) >> 0) & 0x00ff)
|
|
#define HC_VERSION(p) (((p) >> 16) & 0xffff)
|
|
uint32_t cr_hcsparams;
|
|
#define HCS_PPC(p) ((p) & (1 << 4))
|
|
#define HCS_INDICATOR(p) ((p) & (1 << 16)) /* Port indicators */
|
|
#define HCS_N_PORTS(p) (((p) >> 0) & 0xf)
|
|
uint32_t cr_hccparams;
|
|
uint8_t cr_hcsp_portrt[8];
|
|
} __attribute__ ((packed, aligned(4)));
|
|
|
|
struct ehci_hcor {
|
|
uint32_t or_usbcmd;
|
|
#define CMD_PARK (1 << 11) /* enable "park" */
|
|
#define CMD_PARK_CNT(c) (((c) >> 8) & 3) /* how many transfers to park */
|
|
#define CMD_ASE (1 << 5) /* async schedule enable */
|
|
#define CMD_LRESET (1 << 7) /* partial reset */
|
|
#define CMD_IAAD (1 << 5) /* "doorbell" interrupt */
|
|
#define CMD_PSE (1 << 4) /* periodic schedule enable */
|
|
#define CMD_RESET (1 << 1) /* reset HC not bus */
|
|
#define CMD_RUN (1 << 0) /* start/stop HC */
|
|
uint32_t or_usbsts;
|
|
#define STS_ASS (1 << 15)
|
|
#define STS_PSS (1 << 14)
|
|
#define STS_HALT (1 << 12)
|
|
uint32_t or_usbintr;
|
|
#define INTR_UE (1 << 0) /* USB interrupt enable */
|
|
#define INTR_UEE (1 << 1) /* USB error interrupt enable */
|
|
#define INTR_PCE (1 << 2) /* Port change detect enable */
|
|
#define INTR_SEE (1 << 4) /* system error enable */
|
|
#define INTR_AAE (1 << 5) /* Interrupt on async adavance enable */
|
|
uint32_t or_frindex;
|
|
uint32_t or_ctrldssegment;
|
|
uint32_t or_periodiclistbase;
|
|
uint32_t or_asynclistaddr;
|
|
uint32_t _reserved_0_;
|
|
uint32_t or_burstsize;
|
|
uint32_t or_txfilltuning;
|
|
#define TXFIFO_THRESH_MASK (0x3f << 16)
|
|
#define TXFIFO_THRESH(p) ((p & 0x3f) << 16)
|
|
uint32_t _reserved_1_[6];
|
|
uint32_t or_configflag;
|
|
#define FLAG_CF (1 << 0) /* true: we'll support "high speed" */
|
|
uint32_t or_portsc[CONFIG_SYS_USB_EHCI_MAX_ROOT_PORTS];
|
|
#define PORTSC_PSPD(x) (((x) >> 26) & 0x3)
|
|
#define PORTSC_PSPD_FS 0x0
|
|
#define PORTSC_PSPD_LS 0x1
|
|
#define PORTSC_PSPD_HS 0x2
|
|
uint32_t or_systune;
|
|
} __attribute__ ((packed, aligned(4)));
|
|
|
|
#define USBMODE 0x68 /* USB Device mode */
|
|
#define USBMODE_SDIS (1 << 3) /* Stream disable */
|
|
#define USBMODE_BE (1 << 2) /* BE/LE endiannes select */
|
|
#define USBMODE_CM_HC (3 << 0) /* host controller mode */
|
|
#define USBMODE_CM_IDLE (0 << 0) /* idle state */
|
|
|
|
/* Interface descriptor */
|
|
struct usb_linux_interface_descriptor {
|
|
unsigned char bLength;
|
|
unsigned char bDescriptorType;
|
|
unsigned char bInterfaceNumber;
|
|
unsigned char bAlternateSetting;
|
|
unsigned char bNumEndpoints;
|
|
unsigned char bInterfaceClass;
|
|
unsigned char bInterfaceSubClass;
|
|
unsigned char bInterfaceProtocol;
|
|
unsigned char iInterface;
|
|
} __attribute__ ((packed));
|
|
|
|
/* Configuration descriptor information.. */
|
|
struct usb_linux_config_descriptor {
|
|
unsigned char bLength;
|
|
unsigned char bDescriptorType;
|
|
unsigned short wTotalLength;
|
|
unsigned char bNumInterfaces;
|
|
unsigned char bConfigurationValue;
|
|
unsigned char iConfiguration;
|
|
unsigned char bmAttributes;
|
|
unsigned char MaxPower;
|
|
} __attribute__ ((packed));
|
|
|
|
#if defined CONFIG_EHCI_DESC_BIG_ENDIAN
|
|
#define ehci_readl(x) (*((volatile u32 *)(x)))
|
|
#define ehci_writel(a, b) (*((volatile u32 *)(a)) = ((volatile u32)b))
|
|
#else
|
|
#define ehci_readl(x) cpu_to_le32((*((volatile u32 *)(x))))
|
|
#define ehci_writel(a, b) (*((volatile u32 *)(a)) = \
|
|
cpu_to_le32(((volatile u32)b)))
|
|
#endif
|
|
|
|
#if defined CONFIG_EHCI_MMIO_BIG_ENDIAN
|
|
#define hc32_to_cpu(x) be32_to_cpu((x))
|
|
#define cpu_to_hc32(x) cpu_to_be32((x))
|
|
#else
|
|
#define hc32_to_cpu(x) le32_to_cpu((x))
|
|
#define cpu_to_hc32(x) cpu_to_le32((x))
|
|
#endif
|
|
|
|
#define EHCI_PS_WKOC_E (1 << 22) /* RW wake on over current */
|
|
#define EHCI_PS_WKDSCNNT_E (1 << 21) /* RW wake on disconnect */
|
|
#define EHCI_PS_WKCNNT_E (1 << 20) /* RW wake on connect */
|
|
#define EHCI_PS_PO (1 << 13) /* RW port owner */
|
|
#define EHCI_PS_PP (1 << 12) /* RW,RO port power */
|
|
#define EHCI_PS_LS (3 << 10) /* RO line status */
|
|
#define EHCI_PS_PR (1 << 8) /* RW port reset */
|
|
#define EHCI_PS_SUSP (1 << 7) /* RW suspend */
|
|
#define EHCI_PS_FPR (1 << 6) /* RW force port resume */
|
|
#define EHCI_PS_OCC (1 << 5) /* RWC over current change */
|
|
#define EHCI_PS_OCA (1 << 4) /* RO over current active */
|
|
#define EHCI_PS_PEC (1 << 3) /* RWC port enable change */
|
|
#define EHCI_PS_PE (1 << 2) /* RW port enable */
|
|
#define EHCI_PS_CSC (1 << 1) /* RWC connect status change */
|
|
#define EHCI_PS_CS (1 << 0) /* RO connect status */
|
|
#define EHCI_PS_CLEAR (EHCI_PS_OCC | EHCI_PS_PEC | EHCI_PS_CSC)
|
|
|
|
#define EHCI_PS_IS_LOWSPEED(x) (((x) & EHCI_PS_LS) == (1 << 10))
|
|
|
|
/*
|
|
* Schedule Interface Space.
|
|
*
|
|
* IMPORTANT: Software must ensure that no interface data structure
|
|
* reachable by the EHCI host controller spans a 4K page boundary!
|
|
*
|
|
* Periodic transfers (i.e. isochronous and interrupt transfers) are
|
|
* not supported.
|
|
*/
|
|
|
|
/* Queue Element Transfer Descriptor (qTD). */
|
|
struct qTD {
|
|
/* this part defined by EHCI spec */
|
|
uint32_t qt_next; /* see EHCI 3.5.1 */
|
|
#define QT_NEXT_TERMINATE 1
|
|
uint32_t qt_altnext; /* see EHCI 3.5.2 */
|
|
uint32_t qt_token; /* see EHCI 3.5.3 */
|
|
#define QT_TOKEN_DT(x) (((x) & 0x1) << 31) /* Data Toggle */
|
|
#define QT_TOKEN_GET_DT(x) (((x) >> 31) & 0x1)
|
|
#define QT_TOKEN_TOTALBYTES(x) (((x) & 0x7fff) << 16) /* Total Bytes to Transfer */
|
|
#define QT_TOKEN_GET_TOTALBYTES(x) (((x) >> 16) & 0x7fff)
|
|
#define QT_TOKEN_IOC(x) (((x) & 0x1) << 15) /* Interrupt On Complete */
|
|
#define QT_TOKEN_CPAGE(x) (((x) & 0x7) << 12) /* Current Page */
|
|
#define QT_TOKEN_CERR(x) (((x) & 0x3) << 10) /* Error Counter */
|
|
#define QT_TOKEN_PID(x) (((x) & 0x3) << 8) /* PID Code */
|
|
#define QT_TOKEN_PID_OUT 0x0
|
|
#define QT_TOKEN_PID_IN 0x1
|
|
#define QT_TOKEN_PID_SETUP 0x2
|
|
#define QT_TOKEN_STATUS(x) (((x) & 0xff) << 0) /* Status */
|
|
#define QT_TOKEN_GET_STATUS(x) (((x) >> 0) & 0xff)
|
|
#define QT_TOKEN_STATUS_ACTIVE 0x80
|
|
#define QT_TOKEN_STATUS_HALTED 0x40
|
|
#define QT_TOKEN_STATUS_DATBUFERR 0x20
|
|
#define QT_TOKEN_STATUS_BABBLEDET 0x10
|
|
#define QT_TOKEN_STATUS_XACTERR 0x08
|
|
#define QT_TOKEN_STATUS_MISSEDUFRAME 0x04
|
|
#define QT_TOKEN_STATUS_SPLITXSTATE 0x02
|
|
#define QT_TOKEN_STATUS_PERR 0x01
|
|
#define QT_BUFFER_CNT 5
|
|
uint32_t qt_buffer[QT_BUFFER_CNT]; /* see EHCI 3.5.4 */
|
|
uint32_t qt_buffer_hi[QT_BUFFER_CNT]; /* Appendix B */
|
|
/* pad struct for 32 byte alignment */
|
|
uint32_t unused[3];
|
|
};
|
|
|
|
#define EHCI_PAGE_SIZE 4096
|
|
|
|
/* Queue Head (QH). */
|
|
struct QH {
|
|
uint32_t qh_link;
|
|
#define QH_LINK_TERMINATE 1
|
|
#define QH_LINK_TYPE_ITD 0
|
|
#define QH_LINK_TYPE_QH 2
|
|
#define QH_LINK_TYPE_SITD 4
|
|
#define QH_LINK_TYPE_FSTN 6
|
|
uint32_t qh_endpt1;
|
|
#define QH_ENDPT1_RL(x) (((x) & 0xf) << 28) /* NAK Count Reload */
|
|
#define QH_ENDPT1_C(x) (((x) & 0x1) << 27) /* Control Endpoint Flag */
|
|
#define QH_ENDPT1_MAXPKTLEN(x) (((x) & 0x7ff) << 16) /* Maximum Packet Length */
|
|
#define QH_ENDPT1_H(x) (((x) & 0x1) << 15) /* Head of Reclamation List Flag */
|
|
#define QH_ENDPT1_DTC(x) (((x) & 0x1) << 14) /* Data Toggle Control */
|
|
#define QH_ENDPT1_DTC_IGNORE_QTD_TD 0x0
|
|
#define QH_ENDPT1_DTC_DT_FROM_QTD 0x1
|
|
#define QH_ENDPT1_EPS(x) (((x) & 0x3) << 12) /* Endpoint Speed */
|
|
#define QH_ENDPT1_EPS_FS 0x0
|
|
#define QH_ENDPT1_EPS_LS 0x1
|
|
#define QH_ENDPT1_EPS_HS 0x2
|
|
#define QH_ENDPT1_ENDPT(x) (((x) & 0xf) << 8) /* Endpoint Number */
|
|
#define QH_ENDPT1_I(x) (((x) & 0x1) << 7) /* Inactivate on Next Transaction */
|
|
#define QH_ENDPT1_DEVADDR(x) (((x) & 0x7f) << 0) /* Device Address */
|
|
uint32_t qh_endpt2;
|
|
#define QH_ENDPT2_MULT(x) (((x) & 0x3) << 30) /* High-Bandwidth Pipe Multiplier */
|
|
#define QH_ENDPT2_PORTNUM(x) (((x) & 0x7f) << 23) /* Port Number */
|
|
#define QH_ENDPT2_HUBADDR(x) (((x) & 0x7f) << 16) /* Hub Address */
|
|
#define QH_ENDPT2_UFCMASK(x) (((x) & 0xff) << 8) /* Split Completion Mask */
|
|
#define QH_ENDPT2_UFSMASK(x) (((x) & 0xff) << 0) /* Interrupt Schedule Mask */
|
|
uint32_t qh_curtd;
|
|
struct qTD qh_overlay;
|
|
/*
|
|
* Add dummy fill value to make the size of this struct
|
|
* aligned to 32 bytes
|
|
*/
|
|
union {
|
|
uint32_t fill[4];
|
|
void *buffer;
|
|
};
|
|
};
|
|
|
|
struct ehci_ctrl {
|
|
struct ehci_hccr *hccr; /* R/O registers, not need for volatile */
|
|
struct ehci_hcor *hcor;
|
|
int rootdev;
|
|
uint16_t portreset;
|
|
struct QH qh_list __aligned(USB_DMA_MINALIGN);
|
|
struct QH periodic_queue __aligned(USB_DMA_MINALIGN);
|
|
uint32_t *periodic_list;
|
|
int ntds;
|
|
};
|
|
|
|
/* Low level init functions */
|
|
int ehci_hcd_init(int index, enum usb_init_type init,
|
|
struct ehci_hccr **hccr, struct ehci_hcor **hcor);
|
|
int ehci_hcd_stop(int index);
|
|
|
|
#endif /* USB_EHCI_H */
|