| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Renesas Mobile SDHI |
| * |
| * Copyright (C) 2017 Horms Solutions Ltd., Simon Horman |
| * Copyright (C) 2017-19 Renesas Electronics Corporation |
| */ |
| |
| #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 */ |
| u32 tap_hs400; /* sampling clock position for HS400 */ |
| }; |
| |
| 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; |
| u32 scc_tappos_hs400; |
| }; |
| |
| #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 |