xref: /kernel/linux/linux-6.6/drivers/usb/isp1760/isp1760-regs.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Driver for the NXP ISP1760 chip
 *
 * Copyright 2021 Linaro, Rui Miguel Silva
 * Copyright 2014 Laurent Pinchart
 * Copyright 2007 Sebastian Siewior
 *
 * Contacts:
 *     Sebastian Siewior <bigeasy@linutronix.de>
 *     Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 *     Rui Miguel Silva <rui.silva@linaro.org>
 */

#ifndef _ISP176x_REGS_H_
#define _ISP176x_REGS_H_

/* -----------------------------------------------------------------------------
 * Host Controller
 */

/* ISP1760/31 */
/* EHCI capability registers */
#define ISP176x_HC_VERSION		0x002
#define ISP176x_HC_HCSPARAMS		0x004
#define ISP176x_HC_HCCPARAMS		0x008

/* EHCI operational registers */
#define ISP176x_HC_USBCMD		0x020
#define ISP176x_HC_USBSTS		0x024
#define ISP176x_HC_FRINDEX		0x02c

#define ISP176x_HC_CONFIGFLAG		0x060
#define ISP176x_HC_PORTSC1		0x064

#define ISP176x_HC_ISO_PTD_DONEMAP	0x130
#define ISP176x_HC_ISO_PTD_SKIPMAP	0x134
#define ISP176x_HC_ISO_PTD_LASTPTD	0x138
#define ISP176x_HC_INT_PTD_DONEMAP	0x140
#define ISP176x_HC_INT_PTD_SKIPMAP	0x144
#define ISP176x_HC_INT_PTD_LASTPTD	0x148
#define ISP176x_HC_ATL_PTD_DONEMAP	0x150
#define ISP176x_HC_ATL_PTD_SKIPMAP	0x154
#define ISP176x_HC_ATL_PTD_LASTPTD	0x158

/* Configuration Register */
#define ISP176x_HC_HW_MODE_CTRL		0x300
#define ISP176x_HC_CHIP_ID		0x304
#define ISP176x_HC_SCRATCH		0x308
#define ISP176x_HC_RESET		0x30c
#define ISP176x_HC_BUFFER_STATUS	0x334
#define ISP176x_HC_MEMORY		0x33c

/* Interrupt Register */
#define ISP176x_HC_INTERRUPT		0x310
#define ISP176x_HC_INTERRUPT_ENABLE	0x314
#define ISP176x_HC_ISO_IRQ_MASK_OR	0x318
#define ISP176x_HC_INT_IRQ_MASK_OR	0x31c
#define ISP176x_HC_ATL_IRQ_MASK_OR	0x320
#define ISP176x_HC_ISO_IRQ_MASK_AND	0x324
#define ISP176x_HC_INT_IRQ_MASK_AND	0x328
#define ISP176x_HC_ATL_IRQ_MASK_AND	0x32c

#define ISP176x_HC_OTG_CTRL		0x374
#define ISP176x_HC_OTG_CTRL_SET		0x374
#define ISP176x_HC_OTG_CTRL_CLEAR	0x376

enum isp176x_host_controller_fields {
	/* HC_PORTSC1 */
	PORT_OWNER, PORT_POWER, PORT_LSTATUS, PORT_RESET, PORT_SUSPEND,
	PORT_RESUME, PORT_PE, PORT_CSC, PORT_CONNECT,
	/* HC_HCSPARAMS */
	HCS_PPC, HCS_N_PORTS,
	/* HC_HCCPARAMS */
	HCC_ISOC_CACHE, HCC_ISOC_THRES,
	/* HC_USBCMD */
	CMD_LRESET, CMD_RESET, CMD_RUN,
	/* HC_USBSTS */
	STS_PCD,
	/* HC_FRINDEX */
	HC_FRINDEX,
	/* HC_CONFIGFLAG */
	FLAG_CF,
	/* ISO/INT/ATL PTD */
	HC_ISO_PTD_DONEMAP, HC_ISO_PTD_SKIPMAP, HC_ISO_PTD_LASTPTD,
	HC_INT_PTD_DONEMAP, HC_INT_PTD_SKIPMAP, HC_INT_PTD_LASTPTD,
	HC_ATL_PTD_DONEMAP, HC_ATL_PTD_SKIPMAP, HC_ATL_PTD_LASTPTD,
	/* HC_HW_MODE_CTRL */
	ALL_ATX_RESET, HW_ANA_DIGI_OC, HW_DEV_DMA, HW_COMN_IRQ, HW_COMN_DMA,
	HW_DATA_BUS_WIDTH, HW_DACK_POL_HIGH, HW_DREQ_POL_HIGH, HW_INTR_HIGH_ACT,
	HW_INTF_LOCK, HW_INTR_EDGE_TRIG, HW_GLOBAL_INTR_EN,
	/* HC_CHIP_ID */
	HC_CHIP_ID_HIGH, HC_CHIP_ID_LOW, HC_CHIP_REV,
	/* HC_SCRATCH */
	HC_SCRATCH,
	/* HC_RESET */
	SW_RESET_RESET_ATX, SW_RESET_RESET_HC, SW_RESET_RESET_ALL,
	/* HC_BUFFER_STATUS */
	ISO_BUF_FILL, INT_BUF_FILL, ATL_BUF_FILL,
	/* HC_MEMORY */
	MEM_BANK_SEL, MEM_START_ADDR,
	/* HC_DATA */
	HC_DATA,
	/* HC_INTERRUPT */
	HC_INTERRUPT,
	/* HC_INTERRUPT_ENABLE */
	HC_INT_IRQ_ENABLE, HC_ATL_IRQ_ENABLE,
	/* INTERRUPT MASKS */
	HC_ISO_IRQ_MASK_OR, HC_INT_IRQ_MASK_OR, HC_ATL_IRQ_MASK_OR,
	HC_ISO_IRQ_MASK_AND, HC_INT_IRQ_MASK_AND, HC_ATL_IRQ_MASK_AND,
	/* HW_OTG_CTRL_SET */
	HW_OTG_DISABLE, HW_SW_SEL_HC_DC, HW_VBUS_DRV, HW_SEL_CP_EXT,
	HW_DM_PULLDOWN, HW_DP_PULLDOWN, HW_DP_PULLUP, HW_HC_2_DIS,
	/* HW_OTG_CTRL_CLR */
	HW_OTG_DISABLE_CLEAR, HW_SW_SEL_HC_DC_CLEAR, HW_VBUS_DRV_CLEAR,
	HW_SEL_CP_EXT_CLEAR, HW_DM_PULLDOWN_CLEAR, HW_DP_PULLDOWN_CLEAR,
	HW_DP_PULLUP_CLEAR, HW_HC_2_DIS_CLEAR,
	/* Last element */
	HC_FIELD_MAX,
};

/* ISP1763 */
/* EHCI operational registers */
#define ISP1763_HC_USBCMD		0x8c
#define ISP1763_HC_USBSTS		0x90
#define ISP1763_HC_FRINDEX		0x98

#define ISP1763_HC_CONFIGFLAG		0x9c
#define ISP1763_HC_PORTSC1		0xa0

#define ISP1763_HC_ISO_PTD_DONEMAP	0xa4
#define ISP1763_HC_ISO_PTD_SKIPMAP	0xa6
#define ISP1763_HC_ISO_PTD_LASTPTD	0xa8
#define ISP1763_HC_INT_PTD_DONEMAP	0xaa
#define ISP1763_HC_INT_PTD_SKIPMAP	0xac
#define ISP1763_HC_INT_PTD_LASTPTD	0xae
#define ISP1763_HC_ATL_PTD_DONEMAP	0xb0
#define ISP1763_HC_ATL_PTD_SKIPMAP	0xb2
#define ISP1763_HC_ATL_PTD_LASTPTD	0xb4

/* Configuration Register */
#define ISP1763_HC_HW_MODE_CTRL		0xb6
#define ISP1763_HC_CHIP_REV		0x70
#define ISP1763_HC_CHIP_ID		0x72
#define ISP1763_HC_SCRATCH		0x78
#define ISP1763_HC_RESET		0xb8
#define ISP1763_HC_BUFFER_STATUS	0xba
#define ISP1763_HC_MEMORY		0xc4
#define ISP1763_HC_DATA			0xc6

/* Interrupt Register */
#define ISP1763_HC_INTERRUPT		0xd4
#define ISP1763_HC_INTERRUPT_ENABLE	0xd6
#define ISP1763_HC_ISO_IRQ_MASK_OR	0xd8
#define ISP1763_HC_INT_IRQ_MASK_OR	0xda
#define ISP1763_HC_ATL_IRQ_MASK_OR	0xdc
#define ISP1763_HC_ISO_IRQ_MASK_AND	0xde
#define ISP1763_HC_INT_IRQ_MASK_AND	0xe0
#define ISP1763_HC_ATL_IRQ_MASK_AND	0xe2

#define ISP1763_HC_OTG_CTRL_SET		0xe4
#define ISP1763_HC_OTG_CTRL_CLEAR	0xe6

/* -----------------------------------------------------------------------------
 * Peripheral Controller
 */

#define DC_IEPTX(n)			(1 << (11 + 2 * (n)))
#define DC_IEPRX(n)			(1 << (10 + 2 * (n)))
#define DC_IEPRXTX(n)			(3 << (10 + 2 * (n)))

#define ISP176x_DC_CDBGMOD_ACK		BIT(6)
#define ISP176x_DC_DDBGMODIN_ACK	BIT(4)
#define ISP176x_DC_DDBGMODOUT_ACK	BIT(2)

#define ISP176x_DC_IEP0SETUP		BIT(8)
#define ISP176x_DC_IEVBUS		BIT(7)
#define ISP176x_DC_IEHS_STA		BIT(5)
#define ISP176x_DC_IERESM		BIT(4)
#define ISP176x_DC_IESUSP		BIT(3)
#define ISP176x_DC_IEBRST		BIT(0)

#define ISP176x_HW_OTG_DISABLE_CLEAR	BIT(26)
#define ISP176x_HW_SW_SEL_HC_DC_CLEAR	BIT(23)
#define ISP176x_HW_VBUS_DRV_CLEAR	BIT(20)
#define ISP176x_HW_SEL_CP_EXT_CLEAR	BIT(19)
#define ISP176x_HW_DM_PULLDOWN_CLEAR	BIT(18)
#define ISP176x_HW_DP_PULLDOWN_CLEAR	BIT(17)
#define ISP176x_HW_DP_PULLUP_CLEAR	BIT(16)
#define ISP176x_HW_OTG_DISABLE		BIT(10)
#define ISP176x_HW_SW_SEL_HC_DC		BIT(7)
#define ISP176x_HW_VBUS_DRV		BIT(4)
#define ISP176x_HW_SEL_CP_EXT		BIT(3)
#define ISP176x_HW_DM_PULLDOWN		BIT(2)
#define ISP176x_HW_DP_PULLDOWN		BIT(1)
#define ISP176x_HW_DP_PULLUP		BIT(0)

#define ISP176x_DC_ENDPTYP_ISOC		0x01
#define ISP176x_DC_ENDPTYP_BULK		0x02
#define ISP176x_DC_ENDPTYP_INTERRUPT	0x03

/* Initialization Registers */
#define ISP176x_DC_ADDRESS		0x0200
#define ISP176x_DC_MODE			0x020c
#define ISP176x_DC_INTCONF		0x0210
#define ISP176x_DC_DEBUG		0x0212
#define ISP176x_DC_INTENABLE		0x0214

/* Data Flow Registers */
#define ISP176x_DC_EPMAXPKTSZ		0x0204
#define ISP176x_DC_EPTYPE		0x0208

#define ISP176x_DC_BUFLEN		0x021c
#define ISP176x_DC_BUFSTAT		0x021e
#define ISP176x_DC_DATAPORT		0x0220

#define ISP176x_DC_CTRLFUNC		0x0228
#define ISP176x_DC_EPINDEX		0x022c

/* DMA Registers */
#define ISP176x_DC_DMACMD		0x0230
#define ISP176x_DC_DMATXCOUNT		0x0234
#define ISP176x_DC_DMACONF		0x0238
#define ISP176x_DC_DMAHW		0x023c
#define ISP176x_DC_DMAINTREASON		0x0250
#define ISP176x_DC_DMAINTEN		0x0254
#define ISP176x_DC_DMAEP		0x0258
#define ISP176x_DC_DMABURSTCOUNT	0x0264

/* General Registers */
#define ISP176x_DC_INTERRUPT		0x0218
#define ISP176x_DC_CHIPID		0x0270
#define ISP176x_DC_FRAMENUM		0x0274
#define ISP176x_DC_SCRATCH		0x0278
#define ISP176x_DC_UNLOCKDEV		0x027c
#define ISP176x_DC_INTPULSEWIDTH	0x0280
#define ISP176x_DC_TESTMODE		0x0284

enum isp176x_device_controller_fields {
	/* DC_ADDRESS */
	DC_DEVEN, DC_DEVADDR,
	/* DC_MODE */
	DC_VBUSSTAT, DC_SFRESET, DC_GLINTENA,
	/* DC_INTCONF */
	DC_CDBGMOD_ACK, DC_DDBGMODIN_ACK, DC_DDBGMODOUT_ACK, DC_INTPOL,
	/* DC_INTENABLE */
	DC_IEPRXTX_7, DC_IEPRXTX_6, DC_IEPRXTX_5, DC_IEPRXTX_4, DC_IEPRXTX_3,
	DC_IEPRXTX_2, DC_IEPRXTX_1, DC_IEPRXTX_0,
	DC_IEP0SETUP, DC_IEVBUS, DC_IEHS_STA, DC_IERESM, DC_IESUSP, DC_IEBRST,
	/* DC_EPINDEX */
	DC_EP0SETUP, DC_ENDPIDX, DC_EPDIR,
	/* DC_CTRLFUNC */
	DC_CLBUF, DC_VENDP, DC_DSEN, DC_STATUS, DC_STALL,
	/* DC_BUFLEN */
	DC_BUFLEN,
	/* DC_EPMAXPKTSZ */
	DC_FFOSZ,
	/* DC_EPTYPE */
	DC_EPENABLE, DC_ENDPTYP,
	/* DC_FRAMENUM */
	DC_FRAMENUM, DC_UFRAMENUM,
	/* DC_CHIP_ID */
	DC_CHIP_ID_HIGH, DC_CHIP_ID_LOW,
	/* DC_SCRATCH */
	DC_SCRATCH,
	/* Last element */
	DC_FIELD_MAX,
};

/* ISP1763 */
/* Initialization Registers */
#define ISP1763_DC_ADDRESS		0x00
#define ISP1763_DC_MODE			0x0c
#define ISP1763_DC_INTCONF		0x10
#define ISP1763_DC_INTENABLE		0x14

/* Data Flow Registers */
#define ISP1763_DC_EPMAXPKTSZ		0x04
#define ISP1763_DC_EPTYPE		0x08

#define ISP1763_DC_BUFLEN		0x1c
#define ISP1763_DC_BUFSTAT		0x1e
#define ISP1763_DC_DATAPORT		0x20

#define ISP1763_DC_CTRLFUNC		0x28
#define ISP1763_DC_EPINDEX		0x2c

/* DMA Registers */
#define ISP1763_DC_DMACMD		0x30
#define ISP1763_DC_DMATXCOUNT		0x34
#define ISP1763_DC_DMACONF		0x38
#define ISP1763_DC_DMAHW		0x3c
#define ISP1763_DC_DMAINTREASON		0x50
#define ISP1763_DC_DMAINTEN		0x54
#define ISP1763_DC_DMAEP		0x58
#define ISP1763_DC_DMABURSTCOUNT	0x64

/* General Registers */
#define ISP1763_DC_INTERRUPT		0x18
#define ISP1763_DC_CHIPID_LOW		0x70
#define ISP1763_DC_CHIPID_HIGH		0x72
#define ISP1763_DC_FRAMENUM		0x74
#define ISP1763_DC_SCRATCH		0x78
#define ISP1763_DC_UNLOCKDEV		0x7c
#define ISP1763_DC_INTPULSEWIDTH	0x80
#define ISP1763_DC_TESTMODE		0x84

#endif