| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame^] | 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 |