/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Synopsys DesignWare Multimedia Card Interface driver
* ( Based on NXP driver for lpc 31 xx )
*
* Copyright ( C ) 2009 NXP Semiconductors
* Copyright ( C ) 2009 , 2010 Imagination Technologies Ltd .
*/
#ifndef _DW_MMC_H_
#define _DW_MMC_H_
#include <linux/scatterlist.h>
#include <linux/mmc/core.h>
#include <linux/dmaengine.h>
#include <linux/reset.h>
#include <linux/fault-inject.h>
#include <linux/hrtimer.h>
#include <linux/interrupt.h>
#include <linux/workqueue.h>
enum dw_mci_state {
STATE_IDLE = 0 ,
STATE_SENDING_CMD,
STATE_SENDING_DATA,
STATE_DATA_BUSY,
STATE_SENDING_STOP,
STATE_DATA_ERROR,
STATE_SENDING_CMD11,
STATE_WAITING_CMD11_DONE,
};
enum {
EVENT_CMD_COMPLETE = 0 ,
EVENT_XFER_COMPLETE,
EVENT_DATA_COMPLETE,
EVENT_DATA_ERROR,
};
enum dw_mci_cookie {
COOKIE_UNMAPPED,
COOKIE_PRE_MAPPED, /* mapped by pre_req() of dwmmc */
COOKIE_MAPPED, /* mapped by prepare_data() of dwmmc */
};
struct mmc_data;
enum {
TRANS_MODE_PIO = 0 ,
TRANS_MODE_IDMAC,
TRANS_MODE_EDMAC
};
struct dw_mci_dma_slave {
struct dma_chan *ch;
enum dma_transfer_direction direction;
};
/**
* struct dw_mci - MMC controller state shared between all slots
* @ lock : Spinlock protecting the queue and associated data .
* @ irq_lock : Spinlock protecting the INTMASK setting .
* @ regs : Pointer to MMIO registers .
* @ fifo_reg : Pointer to MMIO registers for data FIFO
* @ sg : Scatterlist entry currently being processed by PIO code , if any .
* @ sg_miter : PIO mapping scatterlist iterator .
* @ mrq : The request currently being processed on @ slot ,
* or NULL if the controller is idle .
* @ cmd : The command currently being sent to the card , or NULL .
* @ data : The data currently being transferred , or NULL if no data
* transfer is in progress .
* @ stop_abort : The command currently prepared for stoping transfer .
* @ prev_blksz : The former transfer blksz record .
* @ timing : Record of current ios timing .
* @ use_dma : Which DMA channel is in use for the current transfer , zero
* denotes PIO mode .
* @ using_dma : Whether DMA is in use for the current transfer .
* @ dma_64bit_address : Whether DMA supports 64 - bit address mode or not .
* @ sg_dma : Bus address of DMA buffer .
* @ sg_cpu : Virtual address of DMA buffer .
* @ dma_ops : Pointer to platform - specific DMA callbacks .
* @ cmd_status : Snapshot of SR taken upon completion of the current
* @ ring_size : Buffer size for idma descriptors .
* command . Only valid when EVENT_CMD_COMPLETE is pending .
* @ dms : structure of slave - dma private data .
* @ phy_regs : physical address of controller ' s register map
* @ data_status : Snapshot of SR taken upon completion of the current
* data transfer . Only valid when EVENT_DATA_COMPLETE or
* EVENT_DATA_ERROR is pending .
* @ stop_cmdr : Value to be loaded into CMDR when the stop command is
* to be sent .
* @ dir_status : Direction of current transfer .
* @ bh_work : Work running the request state machine .
* @ pending_events : Bitmask of events flagged by the interrupt handler
* to be processed by bh work .
* @ completed_events : Bitmask of events which the state machine has
* processed .
* @ state : BH work state .
* @ queue : List of slots waiting for access to the controller .
* @ bus_hz : The rate of @ mck in Hz . This forms the basis for MMC bus
* rate and timeout calculations .
* @ current_speed : Configured rate of the controller .
* @ minimum_speed : Stored minimum rate of the controller .
* @ fifoth_val : The value of FIFOTH register .
* @ verid : Denote Version ID .
* @ dev : Device associated with the MMC controller .
* @ pdata : Platform data associated with the MMC controller .
* @ drv_data : Driver specific data for identified variant of the controller
* @ priv : Implementation defined private data .
* @ biu_clk : Pointer to bus interface unit clock instance .
* @ ciu_clk : Pointer to card interface unit clock instance .
* @ slot : Slots sharing this MMC controller .
* @ fifo_depth : depth of FIFO .
* @ data_addr_override : override fifo reg offset with this value .
* @ wm_aligned : force fifo watermark equal with data length in PIO mode .
* Set as true if alignment is needed .
* @ data_shift : log2 of FIFO item size .
* @ part_buf_start : Start index in part_buf .
* @ part_buf_count : Bytes of partial data in part_buf .
* @ part_buf : Simple buffer for partial fifo reads / writes .
* @ push_data : Pointer to FIFO push function .
* @ pull_data : Pointer to FIFO pull function .
* @ quirks : Set of quirks that apply to specific versions of the IP .
* @ vqmmc_enabled : Status of vqmmc , should be true or false .
* @ irq_flags : The flags to be passed to request_irq .
* @ irq : The irq value to be passed to request_irq .
* @ sdio_id0 : Number of slot0 in the SDIO interrupt registers .
* @ cmd11_timer : Timer for SD3 . 0 voltage switch over scheme .
* @ cto_timer : Timer for broken command transfer over scheme .
* @ dto_timer : Timer for broken data transfer over scheme .
*
* Locking
* = = = = = = =
*
* @ lock is a softirq - safe spinlock protecting @ queue as well as
* @ slot , @ mrq and @ state . These must always be updated
* at the same time while holding @ lock .
* The @ mrq field of struct dw_mci_slot is also protected by @ lock ,
* and must always be written at the same time as the slot is added to
* @ queue .
*
* @ irq_lock is an irq - safe spinlock protecting the INTMASK register
* to allow the interrupt handler to modify it directly . Held for only long
* enough to read - modify - write INTMASK and no other locks are grabbed when
* holding this one .
*
* @ pending_events and @ completed_events are accessed using atomic bit
* operations , so they don ' t need any locking .
*
* None of the fields touched by the interrupt handler need any
* locking . However , ordering is important : Before EVENT_DATA_ERROR or
* EVENT_DATA_COMPLETE is set in @ pending_events , all data - related
* interrupts must be disabled and @ data_status updated with a
* snapshot of SR . Similarly , before EVENT_CMD_COMPLETE is set , the
* CMDRDY interrupt must be disabled and @ cmd_status updated with a
* snapshot of SR , and before EVENT_XFER_COMPLETE can be set , the
* bytes_xfered field of @ data must be written . This is ensured by
* using barriers .
*/
struct dw_mci {
spinlock_t lock;
spinlock_t irq_lock;
void __iomem *regs;
void __iomem *fifo_reg;
u32 data_addr_override;
bool wm_aligned;
struct scatterlist *sg;
struct sg_mapping_iter sg_miter;
struct mmc_request *mrq;
struct mmc_command *cmd;
struct mmc_data *data;
struct mmc_command stop_abort;
unsigned int prev_blksz;
unsigned char timing;
/* DMA interface members*/
int use_dma;
int using_dma;
int dma_64bit_address;
dma_addr_t sg_dma;
void *sg_cpu;
const struct dw_mci_dma_ops *dma_ops;
/* For idmac */
unsigned int ring_size;
/* For edmac */
struct dw_mci_dma_slave *dms;
/* Registers's physical base address */
resource_size_t phy_regs;
u32 cmd_status;
u32 data_status;
u32 stop_cmdr;
u32 dir_status;
struct work_struct bh_work;
unsigned long pending_events;
unsigned long completed_events;
enum dw_mci_state state;
struct list_head queue;
u32 bus_hz;
u32 current_speed;
u32 minimum_speed;
u32 fifoth_val;
u16 verid;
struct device *dev;
struct dw_mci_board *pdata;
const struct dw_mci_drv_data *drv_data;
void *priv;
struct clk *biu_clk;
struct clk *ciu_clk;
struct dw_mci_slot *slot;
/* FIFO push and pull */
int fifo_depth;
int data_shift;
u8 part_buf_start;
u8 part_buf_count;
union {
u16 part_buf16;
u32 part_buf32;
u64 part_buf;
};
void (*push_data)(struct dw_mci *host, void *buf, int cnt);
void (*pull_data)(struct dw_mci *host, void *buf, int cnt);
u32 quirks;
bool vqmmc_enabled;
unsigned long irq_flags; /* IRQ flags */
int irq;
int sdio_id0;
struct timer_list cmd11_timer;
struct timer_list cto_timer;
struct timer_list dto_timer;
#ifdef CONFIG_FAULT_INJECTION
struct fault_attr fail_data_crc;
struct hrtimer fault_timer;
#endif
};
/* DMA ops for Internal/External DMAC interface */
struct dw_mci_dma_ops {
/* DMA Ops */
int (*init)(struct dw_mci *host);
int (*start)(struct dw_mci *host, unsigned int sg_len);
void (*complete)(void *host);
void (*stop)(struct dw_mci *host);
void (*cleanup)(struct dw_mci *host);
void (*exit )(struct dw_mci *host);
};
struct dma_pdata;
/* Board platform data */
struct dw_mci_board {
unsigned int bus_hz; /* Clock speed at the cclk_in pad */
u32 caps; /* Capabilities */
u32 caps2; /* More capabilities */
u32 pm_caps; /* PM capabilities */
/*
* Override fifo depth . If 0 , autodetect it from the FIFOTH register ,
* but note that this may not be reliable after a bootloader has used
* it .
*/
unsigned int fifo_depth;
/* delay in mS before detecting cards after interrupt */
u32 detect_delay_ms;
struct reset_control *rstc;
struct dw_mci_dma_ops *dma_ops;
struct dma_pdata *data;
};
/* Support for longer data read timeout */
#define DW_MMC_QUIRK_EXTENDED_TMOUT BIT(0 )
/* Force 32-bit access to the FIFO */
#define DW_MMC_QUIRK_FIFO64_32 BIT(1 )
#define DW_MMC_240A 0 x240a
#define DW_MMC_280A 0 x280a
#define SDMMC_CTRL 0 x000
#define SDMMC_PWREN 0 x004
#define SDMMC_CLKDIV 0 x008
#define SDMMC_CLKSRC 0 x00c
#define SDMMC_CLKENA 0 x010
#define SDMMC_TMOUT 0 x014
#define SDMMC_CTYPE 0 x018
#define SDMMC_BLKSIZ 0 x01c
#define SDMMC_BYTCNT 0 x020
#define SDMMC_INTMASK 0 x024
#define SDMMC_CMDARG 0 x028
#define SDMMC_CMD 0 x02c
#define SDMMC_RESP0 0 x030
#define SDMMC_RESP1 0 x034
#define SDMMC_RESP2 0 x038
#define SDMMC_RESP3 0 x03c
#define SDMMC_MINTSTS 0 x040
#define SDMMC_RINTSTS 0 x044
#define SDMMC_STATUS 0 x048
#define SDMMC_FIFOTH 0 x04c
#define SDMMC_CDETECT 0 x050
#define SDMMC_WRTPRT 0 x054
#define SDMMC_GPIO 0 x058
#define SDMMC_TCBCNT 0 x05c
#define SDMMC_TBBCNT 0 x060
#define SDMMC_DEBNCE 0 x064
#define SDMMC_USRID 0 x068
#define SDMMC_VERID 0 x06c
#define SDMMC_HCON 0 x070
#define SDMMC_UHS_REG 0 x074
#define SDMMC_RST_N 0 x078
#define SDMMC_BMOD 0 x080
#define SDMMC_PLDMND 0 x084
#define SDMMC_DBADDR 0 x088
#define SDMMC_IDSTS 0 x08c
#define SDMMC_IDINTEN 0 x090
#define SDMMC_DSCADDR 0 x094
#define SDMMC_BUFADDR 0 x098
#define SDMMC_CDTHRCTL 0 x100
#define SDMMC_UHS_REG_EXT 0 x108
#define SDMMC_DDR_REG 0 x10c
#define SDMMC_ENABLE_SHIFT 0 x110
#define SDMMC_DATA(x) (x)
/*
* Registers to support idmac 64 - bit address mode
*/
#define SDMMC_DBADDRL 0 x088
#define SDMMC_DBADDRU 0 x08c
#define SDMMC_IDSTS64 0 x090
#define SDMMC_IDINTEN64 0 x094
#define SDMMC_DSCADDRL 0 x098
#define SDMMC_DSCADDRU 0 x09c
#define SDMMC_BUFADDRL 0 x0A0
#define SDMMC_BUFADDRU 0 x0A4
/*
* Data offset is difference according to Version
* Lower than 2 . 40 a : data register offest is 0 x100
*/
#define DATA_OFFSET 0 x100
#define DATA_240A_OFFSET 0 x200
/* shift bit field */
#define _SBF(f, v) ((v) << (f))
/* Control register defines */
#define SDMMC_CTRL_USE_IDMAC BIT(25 )
#define SDMMC_CTRL_CEATA_INT_EN BIT(11 )
#define SDMMC_CTRL_SEND_AS_CCSD BIT(10 )
#define SDMMC_CTRL_SEND_CCSD BIT(9 )
#define SDMMC_CTRL_ABRT_READ_DATA BIT(8 )
#define SDMMC_CTRL_SEND_IRQ_RESP BIT(7 )
#define SDMMC_CTRL_READ_WAIT BIT(6 )
#define SDMMC_CTRL_DMA_ENABLE BIT(5 )
#define SDMMC_CTRL_INT_ENABLE BIT(4 )
#define SDMMC_CTRL_DMA_RESET BIT(2 )
#define SDMMC_CTRL_FIFO_RESET BIT(1 )
#define SDMMC_CTRL_RESET BIT(0 )
/* Clock Enable register defines */
#define SDMMC_CLKEN_LOW_PWR BIT(16 )
#define SDMMC_CLKEN_ENABLE BIT(0 )
/* time-out register defines */
#define SDMMC_TMOUT_DATA(n) _SBF(8 , (n))
#define SDMMC_TMOUT_DATA_MSK 0 xFFFFFF00
#define SDMMC_TMOUT_RESP(n) ((n) & 0 xFF)
#define SDMMC_TMOUT_RESP_MSK 0 xFF
/* card-type register defines */
#define SDMMC_CTYPE_8BIT BIT(16 )
#define SDMMC_CTYPE_4BIT BIT(0 )
#define SDMMC_CTYPE_1BIT 0
/* Interrupt status & mask register defines */
#define SDMMC_INT_SDIO(n) BIT(16 + (n))
#define SDMMC_INT_EBE BIT(15 )
#define SDMMC_INT_ACD BIT(14 )
#define SDMMC_INT_SBE BIT(13 )
#define SDMMC_INT_HLE BIT(12 )
#define SDMMC_INT_FRUN BIT(11 )
#define SDMMC_INT_HTO BIT(10 )
#define SDMMC_INT_VOLT_SWITCH BIT(10 ) /* overloads bit 10! */
#define SDMMC_INT_DRTO BIT(9 )
#define SDMMC_INT_RTO BIT(8 )
#define SDMMC_INT_DCRC BIT(7 )
#define SDMMC_INT_RCRC BIT(6 )
#define SDMMC_INT_RXDR BIT(5 )
#define SDMMC_INT_TXDR BIT(4 )
#define SDMMC_INT_DATA_OVER BIT(3 )
#define SDMMC_INT_CMD_DONE BIT(2 )
#define SDMMC_INT_RESP_ERR BIT(1 )
#define SDMMC_INT_CD BIT(0 )
#define SDMMC_INT_ERROR 0 xbfc2
/* Command register defines */
#define SDMMC_CMD_START BIT(31 )
#define SDMMC_CMD_USE_HOLD_REG BIT(29 )
#define SDMMC_CMD_VOLT_SWITCH BIT(28 )
#define SDMMC_CMD_CCS_EXP BIT(23 )
#define SDMMC_CMD_CEATA_RD BIT(22 )
#define SDMMC_CMD_UPD_CLK BIT(21 )
#define SDMMC_CMD_INIT BIT(15 )
#define SDMMC_CMD_STOP BIT(14 )
#define SDMMC_CMD_PRV_DAT_WAIT BIT(13 )
#define SDMMC_CMD_SEND_STOP BIT(12 )
#define SDMMC_CMD_STRM_MODE BIT(11 )
#define SDMMC_CMD_DAT_WR BIT(10 )
#define SDMMC_CMD_DAT_EXP BIT(9 )
#define SDMMC_CMD_RESP_CRC BIT(8 )
#define SDMMC_CMD_RESP_LONG BIT(7 )
#define SDMMC_CMD_RESP_EXP BIT(6 )
#define SDMMC_CMD_INDX(n) ((n) & 0 x1F)
/* Status register defines */
#define SDMMC_GET_FCNT(x) (((x)>>17 ) & 0 x1FFF)
#define SDMMC_STATUS_DMA_REQ BIT(31 )
#define SDMMC_STATUS_BUSY BIT(9 )
/* FIFOTH register defines */
#define SDMMC_SET_FIFOTH(m, r, t) (((m) & 0 x7) << 28 | \
((r) & 0 xFFF) << 16 | \
((t) & 0 xFFF))
/* HCON register defines */
#define DMA_INTERFACE_IDMA (0 x0)
#define DMA_INTERFACE_DWDMA (0 x1)
#define DMA_INTERFACE_GDMA (0 x2)
#define DMA_INTERFACE_NODMA (0 x3)
#define SDMMC_GET_TRANS_MODE(x) (((x)>>16 ) & 0 x3)
#define SDMMC_GET_SLOT_NUM(x) ((((x)>>1 ) & 0 x1F) + 1 )
#define SDMMC_GET_HDATA_WIDTH(x) (((x)>>7 ) & 0 x7)
#define SDMMC_GET_ADDR_CONFIG(x) (((x)>>27 ) & 0 x1)
/* Internal DMAC interrupt defines */
#define SDMMC_IDMAC_INT_AI BIT(9 )
#define SDMMC_IDMAC_INT_NI BIT(8 )
#define SDMMC_IDMAC_INT_CES BIT(5 )
#define SDMMC_IDMAC_INT_DU BIT(4 )
#define SDMMC_IDMAC_INT_FBE BIT(2 )
#define SDMMC_IDMAC_INT_RI BIT(1 )
#define SDMMC_IDMAC_INT_TI BIT(0 )
/* Internal DMAC bus mode bits */
#define SDMMC_IDMAC_ENABLE BIT(7 )
#define SDMMC_IDMAC_FB BIT(1 )
#define SDMMC_IDMAC_SWRESET BIT(0 )
/* H/W reset */
#define SDMMC_RST_HWACTIVE 0 x1
/* Version ID register define */
#define SDMMC_GET_VERID(x) ((x) & 0 xFFFF)
/* Card read threshold */
#define SDMMC_SET_THLD(v, x) (((v) & 0 xFFF) << 16 | (x))
#define SDMMC_CARD_WR_THR_EN BIT(2 )
#define SDMMC_CARD_RD_THR_EN BIT(0 )
/* UHS-1 register defines */
#define SDMMC_UHS_DDR BIT(16 )
#define SDMMC_UHS_18V BIT(0 )
/* DDR register defines */
#define SDMMC_DDR_HS400 BIT(31 )
/* Enable shift register defines */
#define SDMMC_ENABLE_PHASE BIT(0 )
/* All ctrl reset bits */
#define SDMMC_CTRL_ALL_RESET_FLAGS \
(SDMMC_CTRL_RESET | SDMMC_CTRL_FIFO_RESET | SDMMC_CTRL_DMA_RESET)
/* FIFO register access macros. These should not change the data endian-ness
* as they are written to memory to be dealt with by the upper layers
*/
#define mci_fifo_readw(__reg) __raw_readw(__reg)
#define mci_fifo_readl(__reg) __raw_readl(__reg)
#define mci_fifo_readq(__reg) __raw_readq(__reg)
#define mci_fifo_writew(__value, __reg) __raw_writew(__reg, __value)
#define mci_fifo_writel(__value, __reg) __raw_writel(__reg, __value)
#define mci_fifo_writeq(__value, __reg) __raw_writeq(__reg, __value)
/*
* Some dw_mmc devices have 64 - bit FIFOs , but expect them to be
* accessed using two 32 - bit accesses . If such controller is used
* with a 64 - bit kernel , this has to be done explicitly .
*/
static inline u64 mci_fifo_l_readq(void __iomem *addr)
{
u64 ans;
u32 proxy[2 ];
proxy[0 ] = mci_fifo_readl(addr);
proxy[1 ] = mci_fifo_readl(addr + 4 );
memcpy(&ans, proxy, 8 );
return ans;
}
static inline void mci_fifo_l_writeq(void __iomem *addr, u64 value)
{
u32 proxy[2 ];
memcpy(proxy, &value, 8 );
mci_fifo_writel(addr, proxy[0 ]);
mci_fifo_writel(addr + 4 , proxy[1 ]);
}
/* Register access macros */
#define mci_readl(dev, reg) \
readl_relaxed((dev)->regs + SDMMC_## reg)
#define mci_writel(dev, reg, value) \
writel_relaxed((value), (dev)->regs + SDMMC_## reg)
/* 16-bit FIFO access macros */
#define mci_readw(dev, reg) \
readw_relaxed((dev)->regs + SDMMC_## reg)
#define mci_writew(dev, reg, value) \
writew_relaxed((value), (dev)->regs + SDMMC_## reg)
/* 64-bit FIFO access macros */
#ifdef readq
#define mci_readq(dev, reg) \
readq_relaxed((dev)->regs + SDMMC_## reg)
#define mci_writeq(dev, reg, value) \
writeq_relaxed((value), (dev)->regs + SDMMC_## reg)
#else
/*
* Dummy readq implementation for architectures that don ' t define it .
*
* We would assume that none of these architectures would configure
* the IP block with a 64 bit FIFO width , so this code will never be
* executed on those machines . Defining these macros here keeps the
* rest of the code free from ifdefs .
*/
#define mci_readq(dev, reg) \
(*(volatile u64 __force *)((dev)->regs + SDMMC_## reg))
#define mci_writeq(dev, reg, value) \
(*(volatile u64 __force *)((dev)->regs + SDMMC_## reg) = (value))
#define __raw_writeq(__value, __reg) \
(*(volatile u64 __force *)(__reg) = (__value))
#define __raw_readq(__reg) (*(volatile u64 __force *)(__reg))
#endif
extern int dw_mci_probe(struct dw_mci *host);
extern void dw_mci_remove(struct dw_mci *host);
#ifdef CONFIG_PM
extern int dw_mci_runtime_suspend(struct device *device);
extern int dw_mci_runtime_resume(struct device *device);
#endif
/**
* struct dw_mci_slot - MMC slot state
* @ mmc : The mmc_host representing this slot .
* @ host : The MMC controller this slot is using .
* @ ctype : Card type for this slot .
* @ mrq : mmc_request currently being processed or waiting to be
* processed , or NULL when the slot is idle .
* @ queue_node : List node for placing this node in the @ queue list of
* & struct dw_mci .
* @ clock : Clock rate configured by set_ios ( ) . Protected by host - > lock .
* @ _ _ clk_old : The last clock value that was requested from core .
* Keeping track of this helps us to avoid spamming the console .
* @ flags : Random state bits associated with the slot .
* @ id : Number of this slot .
* @ sdio_id : Number of this slot in the SDIO interrupt registers .
*/
struct dw_mci_slot {
struct mmc_host *mmc;
struct dw_mci *host;
u32 ctype;
struct mmc_request *mrq;
struct list_head queue_node;
unsigned int clock;
unsigned int __clk_old;
unsigned long flags;
#define DW_MMC_CARD_PRESENT 0
#define DW_MMC_CARD_NEED_INIT 1
#define DW_MMC_CARD_NO_LOW_PWR 2
#define DW_MMC_CARD_NO_USE_HOLD 3
#define DW_MMC_CARD_NEEDS_POLL 4
int id;
int sdio_id;
};
/**
* dw_mci driver data - dw - mshc implementation specific driver data .
* @ caps : mmc subsystem specified capabilities of the controller ( s ) .
* @ num_caps : number of capabilities specified by @ caps .
* @ common_caps : mmc subsystem specified capabilities applicable to all of
* the controllers
* @ init : early implementation specific initialization .
* @ set_ios : handle bus specific extensions .
* @ parse_dt : parse implementation specific device tree properties .
* @ execute_tuning : implementation specific tuning procedure .
* @ set_data_timeout : implementation specific timeout .
* @ get_drto_clks : implementation specific cycle count for data read timeout .
* @ hw_reset : implementation specific HW reset .
*
* Provide controller implementation specific extensions . The usage of this
* data structure is fully optional and usage of each member in this structure
* is optional as well .
*/
struct dw_mci_drv_data {
unsigned long *caps;
u32 num_caps;
u32 common_caps;
int (*init)(struct dw_mci *host);
void (*set_ios)(struct dw_mci *host, struct mmc_ios *ios);
int (*parse_dt)(struct dw_mci *host);
int (*execute_tuning)(struct dw_mci_slot *slot, u32 opcode);
int (*prepare_hs400_tuning)(struct dw_mci *host,
struct mmc_ios *ios);
int (*switch_voltage)(struct mmc_host *mmc,
struct mmc_ios *ios);
void (*set_data_timeout)(struct dw_mci *host,
unsigned int timeout_ns);
u32 (*get_drto_clks)(struct dw_mci *host);
void (*hw_reset)(struct dw_mci *host);
};
#endif /* _DW_MMC_H_ */
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