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
15#include <linux/platform_device.h>
16#include "tmio_mmc.h"
17
18struct renesas_sdhi_scc {
19	unsigned long clk_rate;	/* clock rate for SDR104 */
20	u32 tap;		/* sampling clock position for SDR104 */
21};
22
23struct 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;
30	unsigned int bus_shift;
31	int scc_offset;
32	struct renesas_sdhi_scc *taps;
33	int taps_num;
34	unsigned int max_blk_count;
35	unsigned short max_segs;
36};
37
38struct 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);
42	struct completion	dma_dataend;
43	struct tasklet_struct	dma_complete;
44};
45
46struct 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;
54	u32 scc_tappos;
55};
56
57#define host_to_priv(host) \
58	container_of((host)->pdata, struct renesas_sdhi, mmc_data)
59
60int renesas_sdhi_probe(struct platform_device *pdev,
61		       const struct tmio_mmc_dma_ops *dma_ops);
62int renesas_sdhi_remove(struct platform_device *pdev);
63#endif