// SPDX-License-Identifier: GPL-2.0-or-later /* * DWC AHCI SATA Platform driver * * Copyright (C) 2021 BAIKAL ELECTRONICS, JSC */ #include <linux/ahci_platform.h> #include <linux/bitfield.h> #include <linux/bits.h> #include <linux/clk.h> #include <linux/device.h> #include <linux/kernel.h> #include <linux/libata.h> #include <linux/log2.h> #include <linux/mfd/syscon.h> #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/pm.h> #include <linux/regmap.h> #include "ahci.h" #define DRV_NAME … #define AHCI_DWC_FBS_PMPN_MAX … /* DWC AHCI SATA controller specific registers */ #define AHCI_DWC_HOST_OOBR … #define AHCI_DWC_HOST_OOB_WE … #define AHCI_DWC_HOST_CWMIN_MASK … #define AHCI_DWC_HOST_CWMAX_MASK … #define AHCI_DWC_HOST_CIMIN_MASK … #define AHCI_DWC_HOST_CIMAX_MASK … #define AHCI_DWC_HOST_GPCR … #define AHCI_DWC_HOST_GPSR … #define AHCI_DWC_HOST_TIMER1MS … #define AHCI_DWC_HOST_TIMV_MASK … #define AHCI_DWC_HOST_GPARAM1R … #define AHCI_DWC_HOST_ALIGN_M … #define AHCI_DWC_HOST_RX_BUFFER … #define AHCI_DWC_HOST_PHY_DATA_MASK … #define AHCI_DWC_HOST_PHY_RST … #define AHCI_DWC_HOST_PHY_CTRL_MASK … #define AHCI_DWC_HOST_PHY_STAT_MASK … #define AHCI_DWC_HOST_LATCH_M … #define AHCI_DWC_HOST_PHY_TYPE_MASK … #define AHCI_DWC_HOST_RET_ERR … #define AHCI_DWC_HOST_AHB_ENDIAN_MASK … #define AHCI_DWC_HOST_S_HADDR … #define AHCI_DWC_HOST_M_HADDR … #define AHCI_DWC_HOST_S_HDATA_MASK … #define AHCI_DWC_HOST_M_HDATA_MASK … #define AHCI_DWC_HOST_GPARAM2R … #define AHCI_DWC_HOST_FBS_MEM_S … #define AHCI_DWC_HOST_FBS_PMPN_MASK … #define AHCI_DWC_HOST_FBS_SUP … #define AHCI_DWC_HOST_DEV_CP … #define AHCI_DWC_HOST_DEV_MP … #define AHCI_DWC_HOST_ENCODE_M … #define AHCI_DWC_HOST_RXOOB_CLK_M … #define AHCI_DWC_HOST_RXOOB_M … #define AHCI_DWC_HOST_TXOOB_M … #define AHCI_DWC_HOST_RXOOB_M … #define AHCI_DWC_HOST_RXOOB_CLK_MASK … #define AHCI_DWC_HOST_PPARAMR … #define AHCI_DWC_HOST_TX_MEM_M … #define AHCI_DWC_HOST_TX_MEM_S … #define AHCI_DWC_HOST_RX_MEM_M … #define AHCI_DWC_HOST_RX_MEM_S … #define AHCI_DWC_HOST_TXFIFO_DEPTH … #define AHCI_DWC_HOST_RXFIFO_DEPTH … #define AHCI_DWC_HOST_TESTR … #define AHCI_DWC_HOST_PSEL_MASK … #define AHCI_DWC_HOST_TEST_IF … #define AHCI_DWC_HOST_VERSIONR … #define AHCI_DWC_HOST_IDR … #define AHCI_DWC_PORT_DMACR … #define AHCI_DWC_PORT_RXABL_MASK … #define AHCI_DWC_PORT_TXABL_MASK … #define AHCI_DWC_PORT_RXTS_MASK … #define AHCI_DWC_PORT_TXTS_MASK … #define AHCI_DWC_PORT_PHYCR … #define AHCI_DWC_PORT_PHYSR … /* Baikal-T1 AHCI SATA specific registers */ #define AHCI_BT1_HOST_PHYCR … #define AHCI_BT1_HOST_MPLM_MASK … #define AHCI_BT1_HOST_LOSDT_MASK … #define AHCI_BT1_HOST_CRR … #define AHCI_BT1_HOST_CRW … #define AHCI_BT1_HOST_CRCD … #define AHCI_BT1_HOST_CRCA … #define AHCI_BT1_HOST_CRDI_MASK … #define AHCI_BT1_HOST_PHYSR … #define AHCI_BT1_HOST_CRA … #define AHCI_BT1_HOST_CRDO_MASK … struct ahci_dwc_plat_data { … }; struct ahci_dwc_host_priv { … }; static int ahci_bt1_init(struct ahci_host_priv *hpriv) { … } static struct ahci_host_priv *ahci_dwc_get_resources(struct platform_device *pdev) { … } static void ahci_dwc_check_cap(struct ahci_host_priv *hpriv) { … } static void ahci_dwc_init_timer(struct ahci_host_priv *hpriv) { … } static int ahci_dwc_init_dmacr(struct ahci_host_priv *hpriv) { … } static int ahci_dwc_init_host(struct ahci_host_priv *hpriv) { … } static int ahci_dwc_reinit_host(struct ahci_host_priv *hpriv) { … } static void ahci_dwc_clear_host(struct ahci_host_priv *hpriv) { … } static void ahci_dwc_stop_host(struct ata_host *host) { … } static struct ata_port_operations ahci_dwc_port_ops = …; static const struct ata_port_info ahci_dwc_port_info = …; static const struct scsi_host_template ahci_dwc_scsi_info = …; static int ahci_dwc_probe(struct platform_device *pdev) { … } static int ahci_dwc_suspend(struct device *dev) { … } static int ahci_dwc_resume(struct device *dev) { … } static DEFINE_SIMPLE_DEV_PM_OPS(ahci_dwc_pm_ops, ahci_dwc_suspend, ahci_dwc_resume); static struct ahci_dwc_plat_data ahci_dwc_plat = …; static struct ahci_dwc_plat_data ahci_bt1_plat = …; static const struct of_device_id ahci_dwc_of_match[] = …; MODULE_DEVICE_TABLE(of, ahci_dwc_of_match); static struct platform_driver ahci_dwc_driver = …; module_platform_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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