[linux-2.6-block.git] / drivers / mmc / host / renesas_sdhi.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Renesas Mobile SDHI
 *
 * Copyright (C) 2017 Horms Solutions Ltd., Simon Horman
 * Copyright (C) 2017-19 Renesas Electronics Corporation
 */

#ifndef RENESAS_SDHI_H
#define RENESAS_SDHI_H

#include <linux/platform_device.h>
#include "tmio_mmc.h"

struct renesas_sdhi_scc {
	unsigned long clk_rate;	/* clock rate for SDR104 */
	u32 tap;		/* sampling clock position for SDR104 */
	u32 tap_hs400;		/* sampling clock position for HS400 */
};

struct renesas_sdhi_of_data {
	unsigned long tmio_flags;
	u32	      tmio_ocr_mask;
	unsigned long capabilities;
	unsigned long capabilities2;
	enum dma_slave_buswidth dma_buswidth;
	dma_addr_t dma_rx_offset;
	unsigned int bus_shift;
	int scc_offset;
	struct renesas_sdhi_scc *taps;
	int taps_num;
	unsigned int max_blk_count;
	unsigned short max_segs;
};

struct tmio_mmc_dma {
	enum dma_slave_buswidth dma_buswidth;
	bool (*filter)(struct dma_chan *chan, void *arg);
	void (*enable)(struct tmio_mmc_host *host, bool enable);
	struct completion	dma_dataend;
	struct tasklet_struct	dma_complete;
};

struct renesas_sdhi {
	struct clk *clk;
	struct clk *clk_cd;
	struct tmio_mmc_data mmc_data;
	struct tmio_mmc_dma dma_priv;
	struct pinctrl *pinctrl;
	struct pinctrl_state *pins_default, *pins_uhs;
	void __iomem *scc_ctl;
	u32 scc_tappos;
	u32 scc_tappos_hs400;
};

#define host_to_priv(host) \
	container_of((host)->pdata, struct renesas_sdhi, mmc_data)

int renesas_sdhi_probe(struct platform_device *pdev,
		       const struct tmio_mmc_dma_ops *dma_ops);
int renesas_sdhi_remove(struct platform_device *pdev);
#endif
Commit	Line	Data
f707079d	1	/* SPDX-License-Identifier: GPL-2.0 */
c2a96987 SH	2	/*
	3	* Renesas Mobile SDHI
	4	*
	5	* Copyright (C) 2017 Horms Solutions Ltd., Simon Horman
f49bdcde	6	* Copyright (C) 2017-19 Renesas Electronics Corporation
c2a96987 SH	7	*/
	8
	9	#ifndef RENESAS_SDHI_H
	10	#define RENESAS_SDHI_H
	11
9d08428a	12	#include <linux/platform_device.h>
c2a96987 SH	13	#include "tmio_mmc.h"
c2a96987 SH	14
9d08428a SH	15	struct renesas_sdhi_scc {
	16	unsigned long clk_rate; /* clock rate for SDR104 */
	17	u32 tap; /* sampling clock position for SDR104 */
f0c8234c	18	u32 tap_hs400; /* sampling clock position for HS400 */
9d08428a SH	19	};
	20
	21	struct renesas_sdhi_of_data {
	22	unsigned long tmio_flags;
	23	u32 tmio_ocr_mask;
	24	unsigned long capabilities;
	25	unsigned long capabilities2;
	26	enum dma_slave_buswidth dma_buswidth;
	27	dma_addr_t dma_rx_offset;
f2218db8	28	unsigned int bus_shift;
9d08428a SH	29	int scc_offset;
	30	struct renesas_sdhi_scc *taps;
	31	int taps_num;
603aa14d YS	32	unsigned int max_blk_count;
603aa14d YS	33	unsigned short max_segs;
9d08428a SH	34	};
9d08428a SH	35
058db286 MY	36	struct tmio_mmc_dma {
	37	enum dma_slave_buswidth dma_buswidth;
	38	bool (filter)(struct dma_chan chan, void *arg);
	39	void (enable)(struct tmio_mmc_host host, bool enable);
90d95106 MY	40	struct completion dma_dataend;
90d95106 MY	41	struct tasklet_struct dma_complete;
058db286 MY	42	};
	43
	44	struct renesas_sdhi {
	45	struct clk *clk;
	46	struct clk *clk_cd;
	47	struct tmio_mmc_data mmc_data;
	48	struct tmio_mmc_dma dma_priv;
	49	struct pinctrl *pinctrl;
	50	struct pinctrl_state pins_default, pins_uhs;
	51	void __iomem *scc_ctl;
852d258f	52	u32 scc_tappos;
f0c8234c	53	u32 scc_tappos_hs400;
058db286 MY	54	};
	55
	56	#define host_to_priv(host) \
	57	container_of((host)->pdata, struct renesas_sdhi, mmc_data)
	58
9d08428a	59	int renesas_sdhi_probe(struct platform_device *pdev,
2fe35968	60	const struct tmio_mmc_dma_ops *dma_ops);
9d08428a	61	int renesas_sdhi_remove(struct platform_device *pdev);
c2a96987	62	#endif