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 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; 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 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); 42 struct completion dma_dataend; 43 struct tasklet_struct dma_complete; 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; 54 u32 scc_tappos; 55 }; 56 57 #define host_to_priv(host) \ 58 container_of((host)->pdata, struct renesas_sdhi, mmc_data) 59 60 int renesas_sdhi_probe(struct platform_device *pdev, 61 const struct tmio_mmc_dma_ops *dma_ops); 62 int renesas_sdhi_remove(struct platform_device *pdev); 63 #endif 64