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path: root/drivers/staging/brcm80211/brcmfmac/sbsdio.h
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/*
 * Copyright (c) 2010 Broadcom Corporation
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef	_SBSDIO_H
#define	_SBSDIO_H

#define SBSDIO_NUM_FUNCTION		3	/* as of sdiod rev 0, supports 3 functions */

/* function 1 miscellaneous registers */
#define SBSDIO_SPROM_CS			0x10000	/* sprom command and status */
#define SBSDIO_SPROM_INFO		0x10001	/* sprom info register */
#define SBSDIO_SPROM_DATA_LOW		0x10002	/* sprom indirect access data byte 0 */
#define SBSDIO_SPROM_DATA_HIGH		0x10003	/* sprom indirect access data byte 1 */
#define SBSDIO_SPROM_ADDR_LOW		0x10004	/* sprom indirect access addr byte 0 */
#define SBSDIO_SPROM_ADDR_HIGH		0x10005	/* sprom indirect access addr byte 0 */
#define SBSDIO_CHIP_CTRL_DATA		0x10006	/* xtal_pu (gpio) output */
#define SBSDIO_CHIP_CTRL_EN		0x10007	/* xtal_pu (gpio) enable */
#define SBSDIO_WATERMARK		0x10008	/* rev < 7, watermark for sdio device */
#define SBSDIO_DEVICE_CTL		0x10009	/* control busy signal generation */

/* registers introduced in rev 8, some content (mask/bits) defs in sbsdpcmdev.h */
#define SBSDIO_FUNC1_SBADDRLOW		0x1000A	/* SB Address Window Low (b15) */
#define SBSDIO_FUNC1_SBADDRMID		0x1000B	/* SB Address Window Mid (b23:b16) */
#define SBSDIO_FUNC1_SBADDRHIGH		0x1000C	/* SB Address Window High (b31:b24)    */
#define SBSDIO_FUNC1_FRAMECTRL		0x1000D	/* Frame Control (frame term/abort) */
#define SBSDIO_FUNC1_CHIPCLKCSR		0x1000E	/* ChipClockCSR (ALP/HT ctl/status) */
#define SBSDIO_FUNC1_SDIOPULLUP		0x1000F	/* SdioPullUp (on cmd, d0-d2) */
#define SBSDIO_FUNC1_WFRAMEBCLO		0x10019	/* Write Frame Byte Count Low */
#define SBSDIO_FUNC1_WFRAMEBCHI		0x1001A	/* Write Frame Byte Count High */
#define SBSDIO_FUNC1_RFRAMEBCLO		0x1001B	/* Read Frame Byte Count Low */
#define SBSDIO_FUNC1_RFRAMEBCHI		0x1001C	/* Read Frame Byte Count High */

#define SBSDIO_FUNC1_MISC_REG_START	0x10000	/* f1 misc register start */
#define SBSDIO_FUNC1_MISC_REG_LIMIT	0x1001C	/* f1 misc register end */

/* SBSDIO_SPROM_CS */
#define SBSDIO_SPROM_IDLE		0
#define SBSDIO_SPROM_WRITE		1
#define SBSDIO_SPROM_READ		2
#define SBSDIO_SPROM_WEN		4
#define SBSDIO_SPROM_WDS		7
#define SBSDIO_SPROM_DONE		8

/* SBSDIO_SPROM_INFO */
#define SROM_SZ_MASK			0x03	/* SROM size, 1: 4k, 2: 16k */
#define SROM_BLANK			0x04	/* depreciated in corerev 6 */
#define	SROM_OTP			0x80	/* OTP present */

/* SBSDIO_CHIP_CTRL */
#define SBSDIO_CHIP_CTRL_XTAL		0x01	/* or'd with onchip xtal_pu,
						 * 1: power on oscillator
						 * (for 4318 only)
						 */
/* SBSDIO_WATERMARK */
#define SBSDIO_WATERMARK_MASK		0x7f	/* number of words - 1 for sd device
						 * to wait before sending data to host
						 */

/* SBSDIO_DEVICE_CTL */
#define SBSDIO_DEVCTL_SETBUSY		0x01	/* 1: device will assert busy signal when
						 * receiving CMD53
						 */
#define SBSDIO_DEVCTL_SPI_INTR_SYNC	0x02	/* 1: assertion of sdio interrupt is
						 * synchronous to the sdio clock
						 */
#define SBSDIO_DEVCTL_CA_INT_ONLY	0x04	/* 1: mask all interrupts to host
						 * except the chipActive (rev 8)
						 */
#define SBSDIO_DEVCTL_PADS_ISO		0x08	/* 1: isolate internal sdio signals, put
						 * external pads in tri-state; requires
						 * sdio bus power cycle to clear (rev 9)
						 */
#define SBSDIO_DEVCTL_SB_RST_CTL	0x30	/* Force SD->SB reset mapping (rev 11) */
#define SBSDIO_DEVCTL_RST_CORECTL	0x00	/*   Determined by CoreControl bit */
#define SBSDIO_DEVCTL_RST_BPRESET	0x10	/*   Force backplane reset */
#define SBSDIO_DEVCTL_RST_NOBPRESET	0x20	/*   Force no backplane reset */

/* SBSDIO_FUNC1_CHIPCLKCSR */
#define SBSDIO_FORCE_ALP		0x01	/* Force ALP request to backplane */
#define SBSDIO_FORCE_HT			0x02	/* Force HT request to backplane */
#define SBSDIO_FORCE_ILP		0x04	/* Force ILP request to backplane */
#define SBSDIO_ALP_AVAIL_REQ		0x08	/* Make ALP ready (power up xtal) */
#define SBSDIO_HT_AVAIL_REQ		0x10	/* Make HT ready (power up PLL) */
#define SBSDIO_FORCE_HW_CLKREQ_OFF	0x20	/* Squelch clock requests from HW */
#define SBSDIO_ALP_AVAIL		0x40	/* Status: ALP is ready */
#define SBSDIO_HT_AVAIL			0x80	/* Status: HT is ready */
/* In rev8, actual avail bits followed original docs */
#define SBSDIO_Rev8_HT_AVAIL		0x40
#define SBSDIO_Rev8_ALP_AVAIL		0x80

#define SBSDIO_AVBITS			(SBSDIO_HT_AVAIL | SBSDIO_ALP_AVAIL)
#define SBSDIO_ALPAV(regval)		((regval) & SBSDIO_AVBITS)
#define SBSDIO_HTAV(regval)		(((regval) & SBSDIO_AVBITS) == SBSDIO_AVBITS)
#define SBSDIO_ALPONLY(regval)		(SBSDIO_ALPAV(regval) && !SBSDIO_HTAV(regval))
#define SBSDIO_CLKAV(regval, alponly)	(SBSDIO_ALPAV(regval) && \
					(alponly ? 1 : SBSDIO_HTAV(regval)))

/* SBSDIO_FUNC1_SDIOPULLUP */
#define SBSDIO_PULLUP_D0		0x01	/* Enable D0/MISO pullup */
#define SBSDIO_PULLUP_D1		0x02	/* Enable D1/INT# pullup */
#define SBSDIO_PULLUP_D2		0x04	/* Enable D2 pullup */
#define SBSDIO_PULLUP_CMD		0x08	/* Enable CMD/MOSI pullup */
#define SBSDIO_PULLUP_ALL		0x0f	/* All valid bits */

/* function 1 OCP space */
#define SBSDIO_SB_OFT_ADDR_MASK		0x07FFF	/* sb offset addr is <= 15 bits, 32k */
#define SBSDIO_SB_OFT_ADDR_LIMIT	0x08000
#define SBSDIO_SB_ACCESS_2_4B_FLAG	0x08000	/* with b15, maps to 32-bit SB access */

/* some duplication with sbsdpcmdev.h here */
/* valid bits in SBSDIO_FUNC1_SBADDRxxx regs */
#define SBSDIO_SBADDRLOW_MASK		0x80	/* Valid bits in SBADDRLOW */
#define SBSDIO_SBADDRMID_MASK		0xff	/* Valid bits in SBADDRMID */
#define SBSDIO_SBADDRHIGH_MASK		0xffU	/* Valid bits in SBADDRHIGH */
#define SBSDIO_SBWINDOW_MASK		0xffff8000	/* Address bits from SBADDR regs */

/* direct(mapped) cis space */
#define SBSDIO_CIS_BASE_COMMON		0x1000	/* MAPPED common CIS address */
#define SBSDIO_CIS_SIZE_LIMIT		0x200	/* maximum bytes in one CIS */
#define SBSDIO_OTP_CIS_SIZE_LIMIT       0x078	/* maximum bytes OTP CIS */

#define SBSDIO_CIS_OFT_ADDR_MASK	0x1FFFF	/* cis offset addr is < 17 bits */

#define SBSDIO_CIS_MANFID_TUPLE_LEN	6	/* manfid tuple length, include tuple,
						 * link bytes
						 */

/* indirect cis access (in sprom) */
#define SBSDIO_SPROM_CIS_OFFSET		0x8	/* 8 control bytes first, CIS starts from
						 * 8th byte
						 */

#define SBSDIO_BYTEMODE_DATALEN_MAX	64	/* sdio byte mode: maximum length of one
						 * data command
						 */

#define SBSDIO_CORE_ADDR_MASK		0x1FFFF	/* sdio core function one address mask */

/* corecontrol */
#define CC_CISRDY		(1 << 0)	/* CIS Ready */
#define CC_BPRESEN		(1 << 1)	/* CCCR RES signal */
#define CC_F2RDY		(1 << 2)	/* set CCCR IOR2 bit */
#define CC_CLRPADSISO		(1 << 3)	/* clear SDIO pads isolation */
#define CC_XMTDATAAVAIL_MODE	(1 << 4)
#define CC_XMTDATAAVAIL_CTRL	(1 << 5)

/* corestatus */
#define CS_PCMCIAMODE	(1 << 0)	/* Device Mode; 0=SDIO, 1=PCMCIA */
#define CS_SMARTDEV	(1 << 1)	/* 1=smartDev enabled */
#define CS_F2ENABLED	(1 << 2)	/* 1=host has enabled the device */

#define PCMCIA_MES_PA_MASK	0x7fff	/* PCMCIA Message Portal Address Mask */
#define PCMCIA_MES_PM_MASK	0x7fff	/* PCMCIA Message Portal Mask Mask */
#define PCMCIA_WFBC_MASK	0xffff	/* PCMCIA Write Frame Byte Count Mask */
#define PCMCIA_UT_MASK		0x07ff	/* PCMCIA Underflow Timer Mask */

/* intstatus */
#define I_SMB_SW0	(1 << 0)	/* To SB Mail S/W interrupt 0 */
#define I_SMB_SW1	(1 << 1)	/* To SB Mail S/W interrupt 1 */
#define I_SMB_SW2	(1 << 2)	/* To SB Mail S/W interrupt 2 */
#define I_SMB_SW3	(1 << 3)	/* To SB Mail S/W interrupt 3 */
#define I_SMB_SW_MASK	0x0000000f	/* To SB Mail S/W interrupts mask */
#define I_SMB_SW_SHIFT	0	/* To SB Mail S/W interrupts shift */
#define I_HMB_SW0	(1 << 4)	/* To Host Mail S/W interrupt 0 */
#define I_HMB_SW1	(1 << 5)	/* To Host Mail S/W interrupt 1 */
#define I_HMB_SW2	(1 << 6)	/* To Host Mail S/W interrupt 2 */
#define I_HMB_SW3	(1 << 7)	/* To Host Mail S/W interrupt 3 */
#define I_HMB_SW_MASK	0x000000f0	/* To Host Mail S/W interrupts mask */
#define I_HMB_SW_SHIFT	4	/* To Host Mail S/W interrupts shift */
#define I_WR_OOSYNC	(1 << 8)	/* Write Frame Out Of Sync */
#define I_RD_OOSYNC	(1 << 9)	/* Read Frame Out Of Sync */
#define	I_PC		(1 << 10)	/* descriptor error */
#define	I_PD		(1 << 11)	/* data error */
#define	I_DE		(1 << 12)	/* Descriptor protocol Error */
#define	I_RU		(1 << 13)	/* Receive descriptor Underflow */
#define	I_RO		(1 << 14)	/* Receive fifo Overflow */
#define	I_XU		(1 << 15)	/* Transmit fifo Underflow */
#define	I_RI		(1 << 16)	/* Receive Interrupt */
#define I_BUSPWR	(1 << 17)	/* SDIO Bus Power Change (rev 9) */
#define I_XMTDATA_AVAIL (1 << 23)	/* bits in fifo */
#define	I_XI		(1 << 24)	/* Transmit Interrupt */
#define I_RF_TERM	(1 << 25)	/* Read Frame Terminate */
#define I_WF_TERM	(1 << 26)	/* Write Frame Terminate */
#define I_PCMCIA_XU	(1 << 27)	/* PCMCIA Transmit FIFO Underflow */
#define I_SBINT		(1 << 28)	/* sbintstatus Interrupt */
#define I_CHIPACTIVE	(1 << 29)	/* chip from doze to active state */
#define I_SRESET	(1 << 30)	/* CCCR RES interrupt */
#define I_IOE2		(1U << 31)	/* CCCR IOE2 Bit Changed */
#define	I_ERRORS	(I_PC | I_PD | I_DE | I_RU | I_RO | I_XU)
#define I_DMA		(I_RI | I_XI | I_ERRORS)

/* sbintstatus */
#define I_SB_SERR	(1 << 8)	/* Backplane SError (write) */
#define I_SB_RESPERR	(1 << 9)	/* Backplane Response Error (read) */
#define I_SB_SPROMERR	(1 << 10)	/* Error accessing the sprom */

/* sdioaccess */
#define SDA_DATA_MASK	0x000000ff	/* Read/Write Data Mask */
#define SDA_ADDR_MASK	0x000fff00	/* Read/Write Address Mask */
#define SDA_ADDR_SHIFT	8	/* Read/Write Address Shift */
#define SDA_WRITE	0x01000000	/* Write bit  */
#define SDA_READ	0x00000000	/* Write bit cleared for Read */
#define SDA_BUSY	0x80000000	/* Busy bit */

/* sdioaccess-accessible register address spaces */
#define SDA_CCCR_SPACE		0x000	/* CCCR register space */
#define SDA_F1_FBR_SPACE	0x100	/* F1 FBR register space */
#define SDA_F2_FBR_SPACE	0x200	/* F2 FBR register space */
#define SDA_F1_REG_SPACE	0x300	/* F1 core-specific register space */

/* SDA_F1_REG_SPACE sdioaccess-accessible F1 reg space register offsets */
#define SDA_CHIPCONTROLDATA	0x006	/* ChipControlData */
#define SDA_CHIPCONTROLENAB	0x007	/* ChipControlEnable */
#define SDA_F2WATERMARK		0x008	/* Function 2 Watermark */
#define SDA_DEVICECONTROL	0x009	/* DeviceControl */
#define SDA_SBADDRLOW		0x00a	/* SbAddrLow */
#define SDA_SBADDRMID		0x00b	/* SbAddrMid */
#define SDA_SBADDRHIGH		0x00c	/* SbAddrHigh */
#define SDA_FRAMECTRL		0x00d	/* FrameCtrl */
#define SDA_CHIPCLOCKCSR	0x00e	/* ChipClockCSR */
#define SDA_SDIOPULLUP		0x00f	/* SdioPullUp */
#define SDA_SDIOWRFRAMEBCLOW	0x019	/* SdioWrFrameBCLow */
#define SDA_SDIOWRFRAMEBCHIGH	0x01a	/* SdioWrFrameBCHigh */
#define SDA_SDIORDFRAMEBCLOW	0x01b	/* SdioRdFrameBCLow */
#define SDA_SDIORDFRAMEBCHIGH	0x01c	/* SdioRdFrameBCHigh */

/* SDA_F2WATERMARK */
#define SDA_F2WATERMARK_MASK	0x7f	/* F2Watermark Mask */

/* SDA_SBADDRLOW */
#define SDA_SBADDRLOW_MASK	0x80	/* SbAddrLow Mask */

/* SDA_SBADDRMID */
#define SDA_SBADDRMID_MASK	0xff	/* SbAddrMid Mask */

/* SDA_SBADDRHIGH */
#define SDA_SBADDRHIGH_MASK	0xff	/* SbAddrHigh Mask */

/* SDA_FRAMECTRL */
#define SFC_RF_TERM	(1 << 0)	/* Read Frame Terminate */
#define SFC_WF_TERM	(1 << 1)	/* Write Frame Terminate */
#define SFC_CRC4WOOS	(1 << 2)	/* CRC error for write out of sync */
#define SFC_ABORTALL	(1 << 3)	/* Abort all in-progress frames */

/* pcmciaframectrl */
#define PFC_RF_TERM	(1 << 0)	/* Read Frame Terminate */
#define PFC_WF_TERM	(1 << 1)	/* Write Frame Terminate */

/* intrcvlazy */
#define	IRL_TO_MASK	0x00ffffff	/* timeout */
#define	IRL_FC_MASK	0xff000000	/* frame count */
#define	IRL_FC_SHIFT	24	/* frame count */

/* rx header flags */
#define RXF_CRC		0x0001	/* CRC error detected */
#define RXF_WOOS	0x0002	/* write frame out of sync */
#define RXF_WF_TERM	0x0004	/* write frame terminated */
#define RXF_ABORT	0x0008	/* write frame aborted */
#define RXF_DISCARD	(RXF_CRC | RXF_WOOS | RXF_WF_TERM | RXF_ABORT)

/* HW frame tag */
#define SDPCM_FRAMETAG_LEN	4	/* 2 bytes len, 2 bytes check val */

/* cpp contortions to concatenate w/arg prescan */
#ifndef PAD
#define	_PADLINE(line)	pad ## line
#define	_XSTR(line)	_PADLINE(line)
#define	PAD		_XSTR(__LINE__)
#endif				/* PAD */

/* core registers */
struct sdpcmd_regs {
	u32 corecontrol;		/* 0x00, rev8 */
	u32 corestatus;			/* rev8 */
	u32 PAD[1];
	u32 biststatus;			/* rev8 */

	/* PCMCIA access */
	u16 pcmciamesportaladdr;	/* 0x010, rev8 */
	u16 PAD[1];
	u16 pcmciamesportalmask;	/* rev8 */
	u16 PAD[1];
	u16 pcmciawrframebc;		/* rev8 */
	u16 PAD[1];
	u16 pcmciaunderflowtimer;	/* rev8 */
	u16 PAD[1];

	/* interrupt */
	u32 intstatus;			/* 0x020, rev8 */
	u32 hostintmask;		/* rev8 */
	u32 intmask;			/* rev8 */
	u32 sbintstatus;		/* rev8 */
	u32 sbintmask;			/* rev8 */
	u32 funcintmask;		/* rev4 */
	u32 PAD[2];
	u32 tosbmailbox;		/* 0x040, rev8 */
	u32 tohostmailbox;		/* rev8 */
	u32 tosbmailboxdata;		/* rev8 */
	u32 tohostmailboxdata;		/* rev8 */

	/* synchronized access to registers in SDIO clock domain */
	u32 sdioaccess;			/* 0x050, rev8 */
	u32 PAD[3];

	/* PCMCIA frame control */
	u8 pcmciaframectrl;		/* 0x060, rev8 */
	u8 PAD[3];
	u8 pcmciawatermark;		/* rev8 */
	u8 PAD[155];

	/* interrupt batching control */
	u32 intrcvlazy;			/* 0x100, rev8 */
	u32 PAD[3];

	/* counters */
	u32 cmd52rd;			/* 0x110, rev8 */
	u32 cmd52wr;			/* rev8 */
	u32 cmd53rd;			/* rev8 */
	u32 cmd53wr;			/* rev8 */
	u32 abort;			/* rev8 */
	u32 datacrcerror;		/* rev8 */
	u32 rdoutofsync;		/* rev8 */
	u32 wroutofsync;		/* rev8 */
	u32 writebusy;			/* rev8 */
	u32 readwait;			/* rev8 */
	u32 readterm;			/* rev8 */
	u32 writeterm;			/* rev8 */
	u32 PAD[40];
	u32 clockctlstatus;		/* rev8 */
	u32 PAD[7];

	u32 PAD[128];			/* DMA engines */

	/* SDIO/PCMCIA CIS region */
	char cis[512];			/* 0x400-0x5ff, rev6 */

	/* PCMCIA function control registers */
	char pcmciafcr[256];		/* 0x600-6ff, rev6 */
	u16 PAD[55];

	/* PCMCIA backplane access */
	u16 backplanecsr;		/* 0x76E, rev6 */
	u16 backplaneaddr0;		/* rev6 */
	u16 backplaneaddr1;		/* rev6 */
	u16 backplaneaddr2;		/* rev6 */
	u16 backplaneaddr3;		/* rev6 */
	u16 backplanedata0;		/* rev6 */
	u16 backplanedata1;		/* rev6 */
	u16 backplanedata2;		/* rev6 */
	u16 backplanedata3;		/* rev6 */
	u16 PAD[31];

	/* sprom "size" & "blank" info */
	u16 spromstatus;		/* 0x7BE, rev2 */
	u32 PAD[464];

	u16 PAD[0x80];
};

#endif				/* _SBSDIO_H */