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