// SPDX-License-Identifier: GPL-2.0 /* * LiteX LiteSDCard driver * * Copyright (C) 2019-2020 Antmicro <[email protected]> * Copyright (C) 2019-2020 Kamil Rakoczy <[email protected]> * Copyright (C) 2019-2020 Maciej Dudek <[email protected]> * Copyright (C) 2020 Paul Mackerras <[email protected]> * Copyright (C) 2020-2022 Gabriel Somlo <[email protected]> */ #include <linux/bits.h> #include <linux/clk.h> #include <linux/delay.h> #include <linux/dma-mapping.h> #include <linux/interrupt.h> #include <linux/iopoll.h> #include <linux/litex.h> #include <linux/mod_devicetable.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/mmc/host.h> #include <linux/mmc/mmc.h> #include <linux/mmc/sd.h> #define LITEX_PHY_CARDDETECT … #define LITEX_PHY_CLOCKERDIV … #define LITEX_PHY_INITIALIZE … #define LITEX_PHY_WRITESTATUS … #define LITEX_CORE_CMDARG … #define LITEX_CORE_CMDCMD … #define LITEX_CORE_CMDSND … #define LITEX_CORE_CMDRSP … #define LITEX_CORE_CMDEVT … #define LITEX_CORE_DATEVT … #define LITEX_CORE_BLKLEN … #define LITEX_CORE_BLKCNT … #define LITEX_BLK2MEM_BASE … #define LITEX_BLK2MEM_LEN … #define LITEX_BLK2MEM_ENA … #define LITEX_BLK2MEM_DONE … #define LITEX_BLK2MEM_LOOP … #define LITEX_MEM2BLK_BASE … #define LITEX_MEM2BLK_LEN … #define LITEX_MEM2BLK_ENA … #define LITEX_MEM2BLK_DONE … #define LITEX_MEM2BLK_LOOP … #define LITEX_MEM2BLK … #define LITEX_IRQ_STATUS … #define LITEX_IRQ_PENDING … #define LITEX_IRQ_ENABLE … #define SD_CTL_DATA_XFER_NONE … #define SD_CTL_DATA_XFER_READ … #define SD_CTL_DATA_XFER_WRITE … #define SD_CTL_RESP_NONE … #define SD_CTL_RESP_SHORT … #define SD_CTL_RESP_LONG … #define SD_CTL_RESP_SHORT_BUSY … #define SD_BIT_DONE … #define SD_BIT_WR_ERR … #define SD_BIT_TIMEOUT … #define SD_BIT_CRC_ERR … #define SD_SLEEP_US … #define SD_TIMEOUT_US … #define SDIRQ_CARD_DETECT … #define SDIRQ_SD_TO_MEM_DONE … #define SDIRQ_MEM_TO_SD_DONE … #define SDIRQ_CMD_DONE … struct litex_mmc_host { … }; static int litex_mmc_sdcard_wait_done(void __iomem *reg, struct device *dev) { … } static int litex_mmc_send_cmd(struct litex_mmc_host *host, u8 cmd, u32 arg, u8 response_len, u8 transfer) { … } static int litex_mmc_send_app_cmd(struct litex_mmc_host *host) { … } static int litex_mmc_send_set_bus_w_cmd(struct litex_mmc_host *host, u32 width) { … } static int litex_mmc_set_bus_width(struct litex_mmc_host *host) { … } static int litex_mmc_get_cd(struct mmc_host *mmc) { … } static irqreturn_t litex_mmc_interrupt(int irq, void *arg) { … } static u32 litex_mmc_response_len(struct mmc_command *cmd) { … } static void litex_mmc_do_dma(struct litex_mmc_host *host, struct mmc_data *data, unsigned int *len, bool *direct, u8 *transfer) { … } static void litex_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq) { … } static void litex_mmc_setclk(struct litex_mmc_host *host, unsigned int freq) { … } static void litex_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) { … } static const struct mmc_host_ops litex_mmc_ops = …; static int litex_mmc_irq_init(struct platform_device *pdev, struct litex_mmc_host *host) { … } static void litex_mmc_free_host_wrapper(void *mmc) { … } static int litex_mmc_probe(struct platform_device *pdev) { … } static void litex_mmc_remove(struct platform_device *pdev) { … } static const struct of_device_id litex_match[] = …; MODULE_DEVICE_TABLE(of, litex_match); static struct platform_driver litex_mmc_driver = …; module_platform_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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