// SPDX-License-Identifier: GPL-2.0 /* * Renesas SDHI * * Copyright (C) 2015-19 Renesas Electronics Corporation * Copyright (C) 2016-19 Sang Engineering, Wolfram Sang * Copyright (C) 2016-17 Horms Solutions, Simon Horman * Copyright (C) 2009 Magnus Damm * * Based on "Compaq ASIC3 support": * * Copyright 2001 Compaq Computer Corporation. * Copyright 2004-2005 Phil Blundell * Copyright 2007-2008 OpenedHand Ltd. * * Authors: Phil Blundell <[email protected]>, * Samuel Ortiz <[email protected]> * */ #include <linux/clk.h> #include <linux/delay.h> #include <linux/iopoll.h> #include <linux/kernel.h> #include <linux/mmc/host.h> #include <linux/mmc/mmc.h> #include <linux/mmc/slot-gpio.h> #include <linux/module.h> #include <linux/pinctrl/consumer.h> #include <linux/pinctrl/pinctrl-state.h> #include <linux/platform_data/tmio.h> #include <linux/platform_device.h> #include <linux/pm_domain.h> #include <linux/regulator/consumer.h> #include <linux/reset.h> #include <linux/sh_dma.h> #include <linux/slab.h> #include "renesas_sdhi.h" #include "tmio_mmc.h" #define CTL_HOST_MODE … #define HOST_MODE_GEN2_SDR50_WMODE … #define HOST_MODE_GEN2_SDR104_WMODE … #define HOST_MODE_GEN3_WMODE … #define HOST_MODE_GEN3_BUSWIDTH … #define HOST_MODE_GEN3_16BIT … #define HOST_MODE_GEN3_32BIT … #define HOST_MODE_GEN3_64BIT … #define SDHI_VER_GEN2_SDR50 … #define SDHI_VER_RZ_A1 … /* very old datasheets said 0x490c for SDR104, too. They are wrong! */ #define SDHI_VER_GEN2_SDR104 … #define SDHI_VER_GEN3_SD … #define SDHI_VER_GEN3_SDMMC … #define SDHI_GEN3_MMC0_ADDR … static void renesas_sdhi_sdbuf_width(struct tmio_mmc_host *host, int width) { … } static int renesas_sdhi_clk_enable(struct tmio_mmc_host *host) { … } static unsigned int renesas_sdhi_clk_update(struct tmio_mmc_host *host, unsigned int wanted_clock) { … } static void renesas_sdhi_set_clock(struct tmio_mmc_host *host, unsigned int new_clock) { … } static void renesas_sdhi_clk_disable(struct tmio_mmc_host *host) { … } static int renesas_sdhi_card_busy(struct mmc_host *mmc) { … } static int renesas_sdhi_start_signal_voltage_switch(struct mmc_host *mmc, struct mmc_ios *ios) { … } /* SCC registers */ #define SH_MOBILE_SDHI_SCC_DTCNTL … #define SH_MOBILE_SDHI_SCC_TAPSET … #define SH_MOBILE_SDHI_SCC_DT2FF … #define SH_MOBILE_SDHI_SCC_CKSEL … #define SH_MOBILE_SDHI_SCC_RVSCNTL … #define SH_MOBILE_SDHI_SCC_RVSREQ … #define SH_MOBILE_SDHI_SCC_SMPCMP … #define SH_MOBILE_SDHI_SCC_TMPPORT2 … #define SH_MOBILE_SDHI_SCC_TMPPORT3 … #define SH_MOBILE_SDHI_SCC_TMPPORT4 … #define SH_MOBILE_SDHI_SCC_TMPPORT5 … #define SH_MOBILE_SDHI_SCC_TMPPORT6 … #define SH_MOBILE_SDHI_SCC_TMPPORT7 … #define SH_MOBILE_SDHI_SCC_DTCNTL_TAPEN … #define SH_MOBILE_SDHI_SCC_DTCNTL_TAPNUM_SHIFT … #define SH_MOBILE_SDHI_SCC_DTCNTL_TAPNUM_MASK … #define SH_MOBILE_SDHI_SCC_CKSEL_DTSEL … #define SH_MOBILE_SDHI_SCC_RVSCNTL_RVSEN … #define SH_MOBILE_SDHI_SCC_RVSREQ_REQTAPDOWN … #define SH_MOBILE_SDHI_SCC_RVSREQ_REQTAPUP … #define SH_MOBILE_SDHI_SCC_RVSREQ_RVSERR … #define SH_MOBILE_SDHI_SCC_SMPCMP_CMD_REQDOWN … #define SH_MOBILE_SDHI_SCC_SMPCMP_CMD_REQUP … #define SH_MOBILE_SDHI_SCC_SMPCMP_CMD_ERR … #define SH_MOBILE_SDHI_SCC_TMPPORT2_HS400OSEL … #define SH_MOBILE_SDHI_SCC_TMPPORT2_HS400EN … /* Definitions for values the SH_MOBILE_SDHI_SCC_TMPPORT4 register */ #define SH_MOBILE_SDHI_SCC_TMPPORT4_DLL_ACC_START … /* Definitions for values the SH_MOBILE_SDHI_SCC_TMPPORT5 register */ #define SH_MOBILE_SDHI_SCC_TMPPORT5_DLL_RW_SEL_R … #define SH_MOBILE_SDHI_SCC_TMPPORT5_DLL_RW_SEL_W … #define SH_MOBILE_SDHI_SCC_TMPPORT5_DLL_ADR_MASK … /* Definitions for values the SH_MOBILE_SDHI_SCC register */ #define SH_MOBILE_SDHI_SCC_TMPPORT_DISABLE_WP_CODE … #define SH_MOBILE_SDHI_SCC_TMPPORT_CALIB_CODE_MASK … #define SH_MOBILE_SDHI_SCC_TMPPORT_MANUAL_MODE … static inline u32 sd_scc_read32(struct tmio_mmc_host *host, struct renesas_sdhi *priv, int addr) { … } static inline void sd_scc_write32(struct tmio_mmc_host *host, struct renesas_sdhi *priv, int addr, u32 val) { … } static unsigned int renesas_sdhi_init_tuning(struct tmio_mmc_host *host) { … } static void renesas_sdhi_hs400_complete(struct mmc_host *mmc) { … } static void renesas_sdhi_disable_scc(struct mmc_host *mmc) { … } static u32 sd_scc_tmpport_read32(struct tmio_mmc_host *host, struct renesas_sdhi *priv, u32 addr) { … } static void sd_scc_tmpport_write32(struct tmio_mmc_host *host, struct renesas_sdhi *priv, u32 addr, u32 val) { … } static void renesas_sdhi_adjust_hs400_mode_enable(struct tmio_mmc_host *host) { … } static void renesas_sdhi_adjust_hs400_mode_disable(struct tmio_mmc_host *host) { … } static void renesas_sdhi_reset_hs400_mode(struct tmio_mmc_host *host, struct renesas_sdhi *priv) { … } static int renesas_sdhi_prepare_hs400_tuning(struct mmc_host *mmc, struct mmc_ios *ios) { … } static void renesas_sdhi_scc_reset(struct tmio_mmc_host *host, struct renesas_sdhi *priv) { … } /* only populated for TMIO_MMC_MIN_RCAR2 */ static void renesas_sdhi_reset(struct tmio_mmc_host *host, bool preserve) { … } static unsigned int renesas_sdhi_gen3_get_cycles(struct tmio_mmc_host *host) { … } #define SH_MOBILE_SDHI_MIN_TAP_ROW … static int renesas_sdhi_select_tuning(struct tmio_mmc_host *host) { … } static int renesas_sdhi_execute_tuning(struct mmc_host *mmc, u32 opcode) { … } static bool renesas_sdhi_manual_correction(struct tmio_mmc_host *host, bool use_4tap) { … } static bool renesas_sdhi_auto_correction(struct tmio_mmc_host *host) { … } static bool renesas_sdhi_check_scc_error(struct tmio_mmc_host *host, struct mmc_request *mrq) { … } static int renesas_sdhi_wait_idle(struct tmio_mmc_host *host, u32 bit) { … } static int renesas_sdhi_write16_hook(struct tmio_mmc_host *host, int addr) { … } static int renesas_sdhi_multi_io_quirk(struct mmc_card *card, unsigned int direction, int blk_size) { … } static void renesas_sdhi_fixup_request(struct tmio_mmc_host *host, struct mmc_request *mrq) { … } static void renesas_sdhi_enable_dma(struct tmio_mmc_host *host, bool enable) { … } int renesas_sdhi_probe(struct platform_device *pdev, const struct tmio_mmc_dma_ops *dma_ops, const struct renesas_sdhi_of_data *of_data, const struct renesas_sdhi_quirks *quirks) { … } EXPORT_SYMBOL_GPL(…); void renesas_sdhi_remove(struct platform_device *pdev) { … } EXPORT_SYMBOL_GPL(…); MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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