/* linux/arch/arm/plat-s3c/include/plat/regs-otg.h
 *
 * Copyright (C) 2004 Herbert Poetzl <herbert@13thfloor.at>
 *
 * Registers remapping:
 * Lukasz Majewski <l.majewski@samsumg.com>
 *
 * SPDX-License-Identifier:     GPL-2.0+
 */

#ifndef __ASM_ARCH_REGS_USB_OTG_HS_H
#define __ASM_ARCH_REGS_USB_OTG_HS_H

/* USB2.0 OTG Controller register */
struct dwc2_usbotg_phy {
        u32 phypwr;
        u32 phyclk;
        u32 rstcon;
};

/* Device Logical IN Endpoint-Specific Registers */
struct dwc2_dev_in_endp {
        u32 diepctl;
        u8  res1[4];
        u32 diepint;
        u8  res2[4];
        u32 dieptsiz;
        u32 diepdma;
        u8  res3[4];
        u32 diepdmab;
};

/* Device Logical OUT Endpoint-Specific Registers */
struct dwc2_dev_out_endp {
        u32 doepctl;
        u8  res1[4];
        u32 doepint;
        u8  res2[4];
        u32 doeptsiz;
        u32 doepdma;
        u8  res3[4];
        u32 doepdmab;
};

struct ep_fifo {
        u32 fifo;
        u8  res[4092];
};

/* USB2.0 OTG Controller register */
struct dwc2_usbotg_reg {
        /* Core Global Registers */
        u32 gotgctl; /* OTG Control & Status */
        u32 gotgint; /* OTG Interrupt */
        u32 gahbcfg; /* Core AHB Configuration */
        u32 gusbcfg; /* Core USB Configuration */
        u32 grstctl; /* Core Reset */
        u32 gintsts; /* Core Interrupt */
        u32 gintmsk; /* Core Interrupt Mask */
        u32 grxstsr; /* Receive Status Debug Read/Status Read */
        u32 grxstsp; /* Receive Status Debug Pop/Status Pop */
        u32 grxfsiz; /* Receive FIFO Size */
        u32 gnptxfsiz; /* Non-Periodic Transmit FIFO Size */
        u8  res1[216];
        u32 dieptxf[15]; /* Device Periodic Transmit FIFO size register */
        u8  res2[1728];
        /* Device Configuration */
        u32 dcfg; /* Device Configuration Register */
        u32 dctl; /* Device Control */
        u32 dsts; /* Device Status */
        u8  res3[4];
        u32 diepmsk; /* Device IN Endpoint Common Interrupt Mask */
        u32 doepmsk; /* Device OUT Endpoint Common Interrupt Mask */
        u32 daint; /* Device All Endpoints Interrupt */
        u32 daintmsk; /* Device All Endpoints Interrupt Mask */
        u8  res4[224];
        struct dwc2_dev_in_endp in_endp[16];
        struct dwc2_dev_out_endp out_endp[16];
        u8  res5[768];
        struct ep_fifo ep[16];
};

/*===================================================================== */
/*definitions related to CSR setting */

/* DWC2_UDC_OTG_GOTGCTL */
#define B_SESSION_VALID         (0x1<<19)
#define A_SESSION_VALID         (0x1<<18)

/* DWC2_UDC_OTG_GAHBCFG */
#define PTXFE_HALF                      (0<<8)
#define PTXFE_ZERO                      (1<<8)
#define NPTXFE_HALF                     (0<<7)
#define NPTXFE_ZERO                     (1<<7)
#define MODE_SLAVE                      (0<<5)
#define MODE_DMA                        (1<<5)
#define BURST_SINGLE                    (0<<1)
#define BURST_INCR                      (1<<1)
#define BURST_INCR4                     (3<<1)
#define BURST_INCR8                     (5<<1)
#define BURST_INCR16                    (7<<1)
#define GBL_INT_UNMASK                  (1<<0)
#define GBL_INT_MASK                    (0<<0)

/* DWC2_UDC_OTG_GRSTCTL */
#define AHB_MASTER_IDLE         (1u<<31)
#define CORE_SOFT_RESET         (0x1<<0)

/* DWC2_UDC_OTG_GINTSTS/DWC2_UDC_OTG_GINTMSK core interrupt register */
#define INT_RESUME                      (1u<<31)
#define INT_DISCONN                     (0x1<<29)
#define INT_CONN_ID_STS_CNG             (0x1<<28)
#define INT_OUT_EP                      (0x1<<19)
#define INT_IN_EP                       (0x1<<18)
#define INT_ENUMDONE                    (0x1<<13)
#define INT_RESET                       (0x1<<12)
#define INT_SUSPEND                     (0x1<<11)
#define INT_EARLY_SUSPEND               (0x1<<10)
#define INT_NP_TX_FIFO_EMPTY            (0x1<<5)
#define INT_RX_FIFO_NOT_EMPTY           (0x1<<4)
#define INT_SOF                 (0x1<<3)
#define INT_DEV_MODE                    (0x0<<0)
#define INT_HOST_MODE                   (0x1<<1)
#define INT_GOUTNakEff                  (0x01<<7)
#define INT_GINNakEff                   (0x01<<6)

#define FULL_SPEED_CONTROL_PKT_SIZE     8
#define FULL_SPEED_BULK_PKT_SIZE        64

#define HIGH_SPEED_CONTROL_PKT_SIZE     64
#define HIGH_SPEED_BULK_PKT_SIZE        512

#define RX_FIFO_SIZE                    (1024)
#define NPTX_FIFO_SIZE                  (1024)
#define PTX_FIFO_SIZE                   (384)

#define DEPCTL_TXFNUM_0         (0x0<<22)
#define DEPCTL_TXFNUM_1         (0x1<<22)
#define DEPCTL_TXFNUM_2         (0x2<<22)
#define DEPCTL_TXFNUM_3         (0x3<<22)
#define DEPCTL_TXFNUM_4         (0x4<<22)

/* Enumeration speed */
#define USB_HIGH_30_60MHZ               (0x0<<1)
#define USB_FULL_30_60MHZ               (0x1<<1)
#define USB_LOW_6MHZ                    (0x2<<1)
#define USB_FULL_48MHZ                  (0x3<<1)

/* DWC2_UDC_OTG_GRXSTSP STATUS */
#define OUT_PKT_RECEIVED                (0x2<<17)
#define OUT_TRANSFER_COMPLELTED (0x3<<17)
#define SETUP_TRANSACTION_COMPLETED     (0x4<<17)
#define SETUP_PKT_RECEIVED              (0x6<<17)
#define GLOBAL_OUT_NAK                  (0x1<<17)

/* DWC2_UDC_OTG_DCTL device control register */
#define NORMAL_OPERATION                (0x1<<0)
#define SOFT_DISCONNECT         (0x1<<1)

/* DWC2_UDC_OTG_DAINT device all endpoint interrupt register */
#define DAINT_OUT_BIT                   (16)
#define DAINT_MASK                      (0xFFFF)

/* DWC2_UDC_OTG_DIEPCTL0/DOEPCTL0 device
   control IN/OUT endpoint 0 control register */
#define DEPCTL_EPENA                    (0x1<<31)
#define DEPCTL_EPDIS                    (0x1<<30)
#define DEPCTL_SETD1PID         (0x1<<29)
#define DEPCTL_SETD0PID         (0x1<<28)
#define DEPCTL_SNAK                     (0x1<<27)
#define DEPCTL_CNAK                     (0x1<<26)
#define DEPCTL_STALL                    (0x1<<21)
#define DEPCTL_TYPE_BIT         (18)
#define DEPCTL_TYPE_MASK                (0x3<<18)
#define DEPCTL_CTRL_TYPE                (0x0<<18)
#define DEPCTL_ISO_TYPE         (0x1<<18)
#define DEPCTL_BULK_TYPE                (0x2<<18)
#define DEPCTL_INTR_TYPE                (0x3<<18)
#define DEPCTL_USBACTEP         (0x1<<15)
#define DEPCTL_NEXT_EP_BIT              (11)
#define DEPCTL_MPS_BIT                  (0)
#define DEPCTL_MPS_MASK         (0x7FF)

#define DEPCTL0_MPS_64                  (0x0<<0)
#define DEPCTL0_MPS_32                  (0x1<<0)
#define DEPCTL0_MPS_16                  (0x2<<0)
#define DEPCTL0_MPS_8                   (0x3<<0)
#define DEPCTL_MPS_BULK_512             (512<<0)
#define DEPCTL_MPS_INT_MPS_16           (16<<0)

#define DIEPCTL0_NEXT_EP_BIT            (11)


/* DWC2_UDC_OTG_DIEPMSK/DOEPMSK device IN/OUT endpoint
   common interrupt mask register */
/* DWC2_UDC_OTG_DIEPINTn/DOEPINTn device IN/OUT endpoint interrupt register */
#define BACK2BACK_SETUP_RECEIVED        (0x1<<6)
#define INTKNEPMIS                      (0x1<<5)
#define INTKN_TXFEMP                    (0x1<<4)
#define NON_ISO_IN_EP_TIMEOUT           (0x1<<3)
#define CTRL_OUT_EP_SETUP_PHASE_DONE    (0x1<<3)
#define AHB_ERROR                       (0x1<<2)
#define EPDISBLD                        (0x1<<1)
#define TRANSFER_DONE                   (0x1<<0)

#define USB_PHY_CTRL_EN0                (0x1 << 0)

/* OPHYPWR */
#define PHY_0_SLEEP                     (0x1 << 5)
#define OTG_DISABLE_0                   (0x1 << 4)
#define ANALOG_PWRDOWN                  (0x1 << 3)
#define FORCE_SUSPEND_0                 (0x1 << 0)

/* URSTCON */
#define HOST_SW_RST                     (0x1 << 4)
#define PHY_SW_RST1                     (0x1 << 3)
#define PHYLNK_SW_RST                   (0x1 << 2)
#define LINK_SW_RST                     (0x1 << 1)
#define PHY_SW_RST0                     (0x1 << 0)

/* OPHYCLK */
#define COMMON_ON_N1                    (0x1 << 7)
#define COMMON_ON_N0                    (0x1 << 4)
#define ID_PULLUP0                      (0x1 << 2)
#define CLK_SEL_24MHZ                   (0x3 << 0)
#define CLK_SEL_12MHZ                   (0x2 << 0)
#define CLK_SEL_48MHZ                   (0x0 << 0)

#define EXYNOS4X12_ID_PULLUP0           (0x01 << 3)
#define EXYNOS4X12_COMMON_ON_N0 (0x01 << 4)
#define EXYNOS4X12_CLK_SEL_12MHZ        (0x02 << 0)
#define EXYNOS4X12_CLK_SEL_24MHZ        (0x05 << 0)

/* Device Configuration Register DCFG */
#define DEV_SPEED_HIGH_SPEED_20         (0x0 << 0)
#define DEV_SPEED_FULL_SPEED_20         (0x1 << 0)
#define DEV_SPEED_LOW_SPEED_11          (0x2 << 0)
#define DEV_SPEED_FULL_SPEED_11         (0x3 << 0)
#define EP_MISS_CNT(x)                  (x << 18)
#define DEVICE_ADDRESS(x)               (x << 4)

/* Core Reset Register (GRSTCTL) */
#define TX_FIFO_FLUSH                   (0x1 << 5)
#define RX_FIFO_FLUSH                   (0x1 << 4)
#define TX_FIFO_NUMBER(x)               (x << 6)
#define TX_FIFO_FLUSH_ALL               TX_FIFO_NUMBER(0x10)

/* Masks definitions */
#define GINTMSK_INIT    (INT_OUT_EP | INT_IN_EP | INT_RESUME | INT_ENUMDONE\
                        | INT_RESET | INT_SUSPEND)
#define DOEPMSK_INIT    (CTRL_OUT_EP_SETUP_PHASE_DONE | AHB_ERROR|TRANSFER_DONE)
#define DIEPMSK_INIT    (NON_ISO_IN_EP_TIMEOUT|AHB_ERROR|TRANSFER_DONE)
#define GAHBCFG_INIT    (PTXFE_HALF | NPTXFE_HALF | MODE_DMA | BURST_INCR4\
                        | GBL_INT_UNMASK)

/* Device Endpoint X Transfer Size Register (DIEPTSIZX) */
#define DIEPT_SIZ_PKT_CNT(x)                      (x << 19)
#define DIEPT_SIZ_XFER_SIZE(x)                    (x << 0)

/* Device OUT Endpoint X Transfer Size Register (DOEPTSIZX) */
#define DOEPT_SIZ_PKT_CNT(x)                      (x << 19)
#define DOEPT_SIZ_XFER_SIZE(x)                    (x << 0)
#define DOEPT_SIZ_XFER_SIZE_MAX_EP0               (0x7F << 0)
#define DOEPT_SIZ_XFER_SIZE_MAX_EP                (0x7FFF << 0)

/* Device Endpoint-N Control Register (DIEPCTLn/DOEPCTLn) */
#define DIEPCTL_TX_FIFO_NUM(x)                    (x << 22)
#define DIEPCTL_TX_FIFO_NUM_MASK                  (~DIEPCTL_TX_FIFO_NUM(0xF))

/* Device ALL Endpoints Interrupt Register (DAINT) */
#define DAINT_IN_EP_INT(x)                        (x << 0)
#define DAINT_OUT_EP_INT(x)                       (x << 16)
#endif