mmc/host/tmio_mmc.h

1 /* SPDX-License-Identifier: GPL-2.0 */
7  * Copyright (C) 2015-19 Renesas Electronics Corporation
8  * Copyright (C) 2016-19 Sang Engineering, Wolfram Sang
9  * Copyright (C) 2016-17 Horms Solutions, Simon Horman
46 #define CTL_SDIF_MODE 0xe6 /* only known on R-Car 2+ */
47 #define CTL_SD_STATUS 0xf2 /* only known on RZ/{G2L,G3E,V2H} */
72 #define TMIO_STAT_DAT0		BIT(23)	/* only known on R-Car so far */
75 #define TMIO_STAT_ALWAYS_SET_27	BIT(27) /* only known on R-Car 2+ so far */
76 #define TMIO_STAT_ILL_FUNC      BIT(29) /* only when !TMIO_MMC_HAS_IDLE_WAIT */
77 #define TMIO_STAT_SCLKDIVEN     BIT(29) /* only when TMIO_MMC_HAS_IDLE_WAIT */
88 #define CARD_OPT_EXTOP		BIT(9) /* first appeared on R-Car Gen3 SDHI */
105 #define SDIF_MODE_HS400		BIT(0) /* only known on R-Car 2+ */
108 #define SD_STATUS_PWEN		BIT(0) /* only known on RZ/{G3E,V2H} */
109 #define SD_STATUS_IOVS		BIT(16) /* only known on RZ/{G3E,V2H} */
127 	void (*start)(struct tmio_mmc_host *host, struct mmc_data *data);
128 	void (*enable)(struct tmio_mmc_host *host, bool enable);
129 	void (*request)(struct tmio_mmc_host *host,
131 	void (*release)(struct tmio_mmc_host *host);
132 	void (*abort)(struct tmio_mmc_host *host);
133 	void (*dataend)(struct tmio_mmc_host *host);
136 	void (*end)(struct tmio_mmc_host *host);	/* held host->lock */
137 	bool (*dma_irq)(struct tmio_mmc_host *host);
177 	spinlock_t		lock;		/* protect host private data */
184 	int (*clk_enable)(struct tmio_mmc_host *host);
185 	void (*set_clock)(struct tmio_mmc_host *host, unsigned int clock);
188 	void (*clk_disable)(struct tmio_mmc_host *host);
191 	int (*write16_hook)(struct tmio_mmc_host *host, int addr);
192 	void (*reset)(struct tmio_mmc_host *host, bool preserve);
193 	bool (*check_retune)(struct tmio_mmc_host *host, struct mmc_request *mrq);
194 	void (*fixup_request)(struct tmio_mmc_host *host, struct mmc_request *mrq);
195 	unsigned int (*get_timeout_cycles)(struct tmio_mmc_host *host);
202 void tmio_mmc_host_free(struct tmio_mmc_host *host);
203 int tmio_mmc_host_probe(struct tmio_mmc_host *host);
204 void tmio_mmc_host_remove(struct tmio_mmc_host *host);
205 void tmio_mmc_do_data_irq(struct tmio_mmc_host *host);
207 void tmio_mmc_enable_mmc_irqs(struct tmio_mmc_host *host, u32 i);
208 void tmio_mmc_disable_mmc_irqs(struct tmio_mmc_host *host, u32 i);
216 static inline u16 sd_ctrl_read16(struct tmio_mmc_host *host, int addr)  in sd_ctrl_read16()  argument
218 	return ioread16(host->ctl + (addr << host->bus_shift));  in sd_ctrl_read16()
221 static inline void sd_ctrl_read16_rep(struct tmio_mmc_host *host, int addr,  in sd_ctrl_read16_rep()  argument
224 	ioread16_rep(host->ctl + (addr << host->bus_shift), buf, count);  in sd_ctrl_read16_rep()
227 static inline u32 sd_ctrl_read16_and_16_as_32(struct tmio_mmc_host *host,  in sd_ctrl_read16_and_16_as_32()  argument
230 	return ioread16(host->ctl + (addr << host->bus_shift)) |  in sd_ctrl_read16_and_16_as_32()
231 	       ioread16(host->ctl + ((addr + 2) << host->bus_shift)) << 16;  in sd_ctrl_read16_and_16_as_32()
234 static inline u32 sd_ctrl_read32(struct tmio_mmc_host *host, int addr)  in sd_ctrl_read32()  argument
236 	return ioread32(host->ctl + (addr << host->bus_shift));  in sd_ctrl_read32()
239 static inline void sd_ctrl_read32_rep(struct tmio_mmc_host *host, int addr,  in sd_ctrl_read32_rep()  argument
242 	ioread32_rep(host->ctl + (addr << host->bus_shift), buf, count);  in sd_ctrl_read32_rep()
245 static inline void sd_ctrl_write16(struct tmio_mmc_host *host, int addr,  in sd_ctrl_write16()  argument
248 	/* If there is a hook and it returns non-zero then there  in sd_ctrl_write16()
251 	if (host->write16_hook && host->write16_hook(host, addr))  in sd_ctrl_write16()
253 	iowrite16(val, host->ctl + (addr << host->bus_shift));  in sd_ctrl_write16()
256 static inline void sd_ctrl_write16_rep(struct tmio_mmc_host *host, int addr,  in sd_ctrl_write16_rep()  argument
259 	iowrite16_rep(host->ctl + (addr << host->bus_shift), buf, count);  in sd_ctrl_write16_rep()
262 static inline void sd_ctrl_write32_as_16_and_16(struct tmio_mmc_host *host,  in sd_ctrl_write32_as_16_and_16()  argument
266 		val |= host->sdcard_irq_setbit_mask;  in sd_ctrl_write32_as_16_and_16()
268 	iowrite16(val & 0xffff, host->ctl + (addr << host->bus_shift));  in sd_ctrl_write32_as_16_and_16()
269 	iowrite16(val >> 16, host->ctl + ((addr + 2) << host->bus_shift));  in sd_ctrl_write32_as_16_and_16()
272 static inline void sd_ctrl_write32(struct tmio_mmc_host *host, int addr, u32 val)  in sd_ctrl_write32()  argument
274 	iowrite32(val, host->ctl + (addr << host->bus_shift));  in sd_ctrl_write32()
277 static inline void sd_ctrl_write32_rep(struct tmio_mmc_host *host, int addr,  in sd_ctrl_write32_rep()  argument
280 	iowrite32_rep(host->ctl + (addr << host->bus_shift), buf, count);  in sd_ctrl_write32_rep()