// SPDX-License-Identifier: GPL-2.0 /* * sdhci_am654.c - SDHCI driver for TI's AM654 SOCs * * Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com * */ #include <linux/clk.h> #include <linux/iopoll.h> #include <linux/of.h> #include <linux/module.h> #include <linux/pm_runtime.h> #include <linux/property.h> #include <linux/regmap.h> #include <linux/sys_soc.h> #include "cqhci.h" #include "sdhci-cqhci.h" #include "sdhci-pltfm.h" /* CTL_CFG Registers */ #define CTL_CFG_2 … #define CTL_CFG_3 … #define SLOTTYPE_MASK … #define SLOTTYPE_EMBEDDED … #define TUNINGFORSDR50_MASK … /* PHY Registers */ #define PHY_CTRL1 … #define PHY_CTRL2 … #define PHY_CTRL3 … #define PHY_CTRL4 … #define PHY_CTRL5 … #define PHY_CTRL6 … #define PHY_STAT1 … #define PHY_STAT2 … #define IOMUX_ENABLE_SHIFT … #define IOMUX_ENABLE_MASK … #define OTAPDLYENA_SHIFT … #define OTAPDLYENA_MASK … #define OTAPDLYSEL_SHIFT … #define OTAPDLYSEL_MASK … #define STRBSEL_SHIFT … #define STRBSEL_4BIT_MASK … #define STRBSEL_8BIT_MASK … #define SEL50_SHIFT … #define SEL50_MASK … #define SEL100_SHIFT … #define SEL100_MASK … #define FREQSEL_SHIFT … #define FREQSEL_MASK … #define CLKBUFSEL_SHIFT … #define CLKBUFSEL_MASK … #define DLL_TRIM_ICP_SHIFT … #define DLL_TRIM_ICP_MASK … #define DR_TY_SHIFT … #define DR_TY_MASK … #define ENDLL_SHIFT … #define ENDLL_MASK … #define DLLRDY_SHIFT … #define DLLRDY_MASK … #define PDB_SHIFT … #define PDB_MASK … #define CALDONE_SHIFT … #define CALDONE_MASK … #define RETRIM_SHIFT … #define RETRIM_MASK … #define SELDLYTXCLK_SHIFT … #define SELDLYTXCLK_MASK … #define SELDLYRXCLK_SHIFT … #define SELDLYRXCLK_MASK … #define ITAPDLYSEL_SHIFT … #define ITAPDLYSEL_MASK … #define ITAPDLYENA_SHIFT … #define ITAPDLYENA_MASK … #define ITAPCHGWIN_SHIFT … #define ITAPCHGWIN_MASK … #define DRIVER_STRENGTH_50_OHM … #define DRIVER_STRENGTH_33_OHM … #define DRIVER_STRENGTH_66_OHM … #define DRIVER_STRENGTH_100_OHM … #define DRIVER_STRENGTH_40_OHM … #define CLOCK_TOO_SLOW_HZ … #define SDHCI_AM654_AUTOSUSPEND_DELAY … #define RETRY_TUNING_MAX … /* Command Queue Host Controller Interface Base address */ #define SDHCI_AM654_CQE_BASE_ADDR … static const struct regmap_config sdhci_am654_regmap_config = …; struct timing_data { … }; static const struct timing_data td[] = …; struct sdhci_am654_data { … }; struct window { … }; struct sdhci_am654_driver_data { … }; static void sdhci_am654_setup_dll(struct sdhci_host *host, unsigned int clock) { … } static void sdhci_am654_write_itapdly(struct sdhci_am654_data *sdhci_am654, u32 itapdly, u32 enable) { … } static void sdhci_am654_setup_delay_chain(struct sdhci_am654_data *sdhci_am654, unsigned char timing) { … } static void sdhci_am654_set_clock(struct sdhci_host *host, unsigned int clock) { … } static void sdhci_j721e_4bit_set_clock(struct sdhci_host *host, unsigned int clock) { … } static u8 sdhci_am654_write_power_on(struct sdhci_host *host, u8 val, int reg) { … } #define MAX_POWER_ON_TIMEOUT … static void sdhci_am654_write_b(struct sdhci_host *host, u8 val, int reg) { … } static void sdhci_am654_reset(struct sdhci_host *host, u8 mask) { … } static int sdhci_am654_execute_tuning(struct mmc_host *mmc, u32 opcode) { … } static u32 sdhci_am654_cqhci_irq(struct sdhci_host *host, u32 intmask) { … } #define ITAPDLY_LENGTH … #define ITAPDLY_LAST_INDEX … static int sdhci_am654_calculate_itap(struct sdhci_host *host, struct window *fail_window, u8 num_fails, bool circular_buffer) { … } static int sdhci_am654_do_tuning(struct sdhci_host *host, u32 opcode) { … } static int sdhci_am654_platform_execute_tuning(struct sdhci_host *host, u32 opcode) { … } static const struct sdhci_ops sdhci_am654_ops = …; static const struct sdhci_pltfm_data sdhci_am654_pdata = …; static const struct sdhci_am654_driver_data sdhci_am654_sr1_drvdata = …; static const struct sdhci_am654_driver_data sdhci_am654_drvdata = …; static const struct sdhci_ops sdhci_j721e_8bit_ops = …; static const struct sdhci_pltfm_data sdhci_j721e_8bit_pdata = …; static const struct sdhci_am654_driver_data sdhci_j721e_8bit_drvdata = …; static const struct sdhci_ops sdhci_j721e_4bit_ops = …; static const struct sdhci_pltfm_data sdhci_j721e_4bit_pdata = …; static const struct sdhci_am654_driver_data sdhci_j721e_4bit_drvdata = …; static const struct soc_device_attribute sdhci_am654_devices[] = …; static void sdhci_am654_dumpregs(struct mmc_host *mmc) { … } static const struct cqhci_host_ops sdhci_am654_cqhci_ops = …; static int sdhci_am654_cqe_add_host(struct sdhci_host *host) { … } static int sdhci_am654_get_otap_delay(struct sdhci_host *host, struct sdhci_am654_data *sdhci_am654) { … } static int sdhci_am654_init(struct sdhci_host *host) { … } static int sdhci_am654_get_of_property(struct platform_device *pdev, struct sdhci_am654_data *sdhci_am654) { … } static const struct of_device_id sdhci_am654_of_match[] = …; MODULE_DEVICE_TABLE(of, sdhci_am654_of_match); static int sdhci_am654_probe(struct platform_device *pdev) { … } static void sdhci_am654_remove(struct platform_device *pdev) { … } #ifdef CONFIG_PM static int sdhci_am654_restore(struct sdhci_host *host) { … } static int sdhci_am654_runtime_suspend(struct device *dev) { … } static int sdhci_am654_runtime_resume(struct device *dev) { … } #endif static const struct dev_pm_ops sdhci_am654_dev_pm_ops = …; static struct platform_driver sdhci_am654_driver = …; module_platform_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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