[mirror_ubuntu-jammy-kernel.git] / drivers / mmc / host / renesas_sdhi.h

/*
 * Renesas Mobile SDHI
 *
 * Copyright (C) 2017 Horms Solutions Ltd., Simon Horman
 * Copyright (C) 2017 Renesas Electronics Corporation
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#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 */
};

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;
};

#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
c2a96987 SH	1	/*
	2	* Renesas Mobile SDHI
	3	*
	4	* Copyright (C) 2017 Horms Solutions Ltd., Simon Horman
	5	* Copyright (C) 2017 Renesas Electronics Corporation
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License version 2 as
	9	* published by the Free Software Foundation.
	10	*/
	11
	12	#ifndef RENESAS_SDHI_H
	13	#define RENESAS_SDHI_H
	14
9d08428a	15	#include <linux/platform_device.h>
c2a96987 SH	16	#include "tmio_mmc.h"
c2a96987 SH	17
9d08428a SH	18	struct renesas_sdhi_scc {
	19	unsigned long clk_rate; /* clock rate for SDR104 */
	20	u32 tap; /* sampling clock position for SDR104 */
	21	};
	22
	23	struct renesas_sdhi_of_data {
	24	unsigned long tmio_flags;
	25	u32 tmio_ocr_mask;
	26	unsigned long capabilities;
	27	unsigned long capabilities2;
	28	enum dma_slave_buswidth dma_buswidth;
	29	dma_addr_t dma_rx_offset;
f2218db8	30	unsigned int bus_shift;
9d08428a SH	31	int scc_offset;
	32	struct renesas_sdhi_scc *taps;
	33	int taps_num;
603aa14d YS	34	unsigned int max_blk_count;
603aa14d YS	35	unsigned short max_segs;
9d08428a SH	36	};
9d08428a SH	37
058db286 MY	38	struct tmio_mmc_dma {
	39	enum dma_slave_buswidth dma_buswidth;
	40	bool (filter)(struct dma_chan chan, void *arg);
	41	void (enable)(struct tmio_mmc_host host, bool enable);
90d95106 MY	42	struct completion dma_dataend;
90d95106 MY	43	struct tasklet_struct dma_complete;
058db286 MY	44	};
	45
	46	struct renesas_sdhi {
	47	struct clk *clk;
	48	struct clk *clk_cd;
	49	struct tmio_mmc_data mmc_data;
	50	struct tmio_mmc_dma dma_priv;
	51	struct pinctrl *pinctrl;
	52	struct pinctrl_state pins_default, pins_uhs;
	53	void __iomem *scc_ctl;
852d258f	54	u32 scc_tappos;
058db286 MY	55	};
	56
	57	#define host_to_priv(host) \
	58	container_of((host)->pdata, struct renesas_sdhi, mmc_data)
	59
9d08428a	60	int renesas_sdhi_probe(struct platform_device *pdev,
2fe35968	61	const struct tmio_mmc_dma_ops *dma_ops);
9d08428a	62	int renesas_sdhi_remove(struct platform_device *pdev);
c2a96987	63	#endif