// SPDX-License-Identifier: GPL-2.0 OR MIT /* * MTK NAND Flash controller driver. * Copyright (C) 2016 MediaTek Inc. * Authors: Xiaolei Li <[email protected]> * Jorge Ramirez-Ortiz <[email protected]> */ #include <linux/platform_device.h> #include <linux/dma-mapping.h> #include <linux/interrupt.h> #include <linux/delay.h> #include <linux/clk.h> #include <linux/mtd/rawnand.h> #include <linux/mtd/mtd.h> #include <linux/module.h> #include <linux/iopoll.h> #include <linux/of.h> #include <linux/mtd/nand-ecc-mtk.h> /* NAND controller register definition */ #define NFI_CNFG … #define CNFG_AHB … #define CNFG_READ_EN … #define CNFG_DMA_BURST_EN … #define CNFG_BYTE_RW … #define CNFG_HW_ECC_EN … #define CNFG_AUTO_FMT_EN … #define CNFG_OP_CUST … #define NFI_PAGEFMT … #define PAGEFMT_FDM_ECC_SHIFT … #define PAGEFMT_FDM_SHIFT … #define PAGEFMT_SEC_SEL_512 … #define PAGEFMT_512_2K … #define PAGEFMT_2K_4K … #define PAGEFMT_4K_8K … #define PAGEFMT_8K_16K … /* NFI control */ #define NFI_CON … #define CON_FIFO_FLUSH … #define CON_NFI_RST … #define CON_BRD … #define CON_BWR … #define CON_SEC_SHIFT … /* Timming control register */ #define NFI_ACCCON … #define NFI_INTR_EN … #define INTR_AHB_DONE_EN … #define NFI_INTR_STA … #define NFI_CMD … #define NFI_ADDRNOB … #define NFI_COLADDR … #define NFI_ROWADDR … #define NFI_STRDATA … #define STAR_EN … #define STAR_DE … #define NFI_CNRNB … #define NFI_DATAW … #define NFI_DATAR … #define NFI_PIO_DIRDY … #define PIO_DI_RDY … #define NFI_STA … #define STA_CMD … #define STA_ADDR … #define STA_BUSY … #define STA_EMP_PAGE … #define NFI_FSM_CUSTDATA … #define NFI_FSM_MASK … #define NFI_ADDRCNTR … #define CNTR_MASK … #define ADDRCNTR_SEC_SHIFT … #define ADDRCNTR_SEC(val) … #define NFI_STRADDR … #define NFI_BYTELEN … #define NFI_CSEL … #define NFI_FDML(x) … #define NFI_FDMM(x) … #define NFI_FDM_MAX_SIZE … #define NFI_FDM_MIN_SIZE … #define NFI_DEBUG_CON1 … #define STROBE_MASK … #define STROBE_SHIFT … #define MAX_STROBE_DLY … #define NFI_MASTER_STA … #define MASTER_STA_MASK … #define NFI_EMPTY_THRESH … #define MTK_NAME … #define KB(x) … #define MB(x) … #define MTK_TIMEOUT … #define MTK_RESET_TIMEOUT … #define MTK_NAND_MAX_NSELS … #define MTK_NFC_MIN_SPARE … #define ACCTIMING(tpoecs, tprecs, tc2r, tw2r, twh, twst, trlt) … struct mtk_nfc_caps { … }; struct mtk_nfc_bad_mark_ctl { … }; /* * FDM: region used to store free OOB data */ struct mtk_nfc_fdm { … }; struct mtk_nfc_nand_chip { … }; struct mtk_nfc_clk { … }; struct mtk_nfc { … }; /* * supported spare size of each IP. * order should be the same with the spare size bitfiled defination of * register NFI_PAGEFMT. */ static const u8 spare_size_mt2701[] = …; static const u8 spare_size_mt2712[] = …; static const u8 spare_size_mt7622[] = …; static inline struct mtk_nfc_nand_chip *to_mtk_nand(struct nand_chip *nand) { … } static inline u8 *data_ptr(struct nand_chip *chip, const u8 *p, int i) { … } static inline u8 *oob_ptr(struct nand_chip *chip, int i) { … } static inline int mtk_data_len(struct nand_chip *chip) { … } static inline u8 *mtk_data_ptr(struct nand_chip *chip, int i) { … } static inline u8 *mtk_oob_ptr(struct nand_chip *chip, int i) { … } static inline void nfi_writel(struct mtk_nfc *nfc, u32 val, u32 reg) { … } static inline void nfi_writew(struct mtk_nfc *nfc, u16 val, u32 reg) { … } static inline void nfi_writeb(struct mtk_nfc *nfc, u8 val, u32 reg) { … } static inline u32 nfi_readl(struct mtk_nfc *nfc, u32 reg) { … } static inline u16 nfi_readw(struct mtk_nfc *nfc, u32 reg) { … } static inline u8 nfi_readb(struct mtk_nfc *nfc, u32 reg) { … } static void mtk_nfc_hw_reset(struct mtk_nfc *nfc) { … } static int mtk_nfc_send_command(struct mtk_nfc *nfc, u8 command) { … } static int mtk_nfc_send_address(struct mtk_nfc *nfc, int addr) { … } static int mtk_nfc_hw_runtime_config(struct mtd_info *mtd) { … } static inline void mtk_nfc_wait_ioready(struct mtk_nfc *nfc) { … } static inline u8 mtk_nfc_read_byte(struct nand_chip *chip) { … } static void mtk_nfc_read_buf(struct nand_chip *chip, u8 *buf, int len) { … } static void mtk_nfc_write_byte(struct nand_chip *chip, u8 byte) { … } static void mtk_nfc_write_buf(struct nand_chip *chip, const u8 *buf, int len) { … } static int mtk_nfc_exec_instr(struct nand_chip *chip, const struct nand_op_instr *instr) { … } static void mtk_nfc_select_target(struct nand_chip *nand, unsigned int cs) { … } static int mtk_nfc_exec_op(struct nand_chip *chip, const struct nand_operation *op, bool check_only) { … } static int mtk_nfc_setup_interface(struct nand_chip *chip, int csline, const struct nand_interface_config *conf) { … } static int mtk_nfc_sector_encode(struct nand_chip *chip, u8 *data) { … } static void mtk_nfc_no_bad_mark_swap(struct mtd_info *a, u8 *b, int c) { … } static void mtk_nfc_bad_mark_swap(struct mtd_info *mtd, u8 *buf, int raw) { … } static int mtk_nfc_format_subpage(struct mtd_info *mtd, u32 offset, u32 len, const u8 *buf) { … } static void mtk_nfc_format_page(struct mtd_info *mtd, const u8 *buf) { … } static inline void mtk_nfc_read_fdm(struct nand_chip *chip, u32 start, u32 sectors) { … } static inline void mtk_nfc_write_fdm(struct nand_chip *chip) { … } static int mtk_nfc_do_write_page(struct mtd_info *mtd, struct nand_chip *chip, const u8 *buf, int page, int len) { … } static int mtk_nfc_write_page(struct mtd_info *mtd, struct nand_chip *chip, const u8 *buf, int page, int raw) { … } static int mtk_nfc_write_page_hwecc(struct nand_chip *chip, const u8 *buf, int oob_on, int page) { … } static int mtk_nfc_write_page_raw(struct nand_chip *chip, const u8 *buf, int oob_on, int pg) { … } static int mtk_nfc_write_subpage_hwecc(struct nand_chip *chip, u32 offset, u32 data_len, const u8 *buf, int oob_on, int page) { … } static int mtk_nfc_write_oob_std(struct nand_chip *chip, int page) { … } static int mtk_nfc_update_ecc_stats(struct mtd_info *mtd, u8 *buf, u32 start, u32 sectors) { … } static int mtk_nfc_read_subpage(struct mtd_info *mtd, struct nand_chip *chip, u32 data_offs, u32 readlen, u8 *bufpoi, int page, int raw) { … } static int mtk_nfc_read_subpage_hwecc(struct nand_chip *chip, u32 off, u32 len, u8 *p, int pg) { … } static int mtk_nfc_read_page_hwecc(struct nand_chip *chip, u8 *p, int oob_on, int pg) { … } static int mtk_nfc_read_page_raw(struct nand_chip *chip, u8 *buf, int oob_on, int page) { … } static int mtk_nfc_read_oob_std(struct nand_chip *chip, int page) { … } static inline void mtk_nfc_hw_init(struct mtk_nfc *nfc) { … } static irqreturn_t mtk_nfc_irq(int irq, void *id) { … } static int mtk_nfc_ooblayout_free(struct mtd_info *mtd, int section, struct mtd_oob_region *oob_region) { … } static int mtk_nfc_ooblayout_ecc(struct mtd_info *mtd, int section, struct mtd_oob_region *oob_region) { … } static const struct mtd_ooblayout_ops mtk_nfc_ooblayout_ops = …; static void mtk_nfc_set_fdm(struct mtk_nfc_fdm *fdm, struct mtd_info *mtd) { … } static void mtk_nfc_set_bad_mark_ctl(struct mtk_nfc_bad_mark_ctl *bm_ctl, struct mtd_info *mtd) { … } static int mtk_nfc_set_spare_per_sector(u32 *sps, struct mtd_info *mtd) { … } static int mtk_nfc_ecc_init(struct device *dev, struct mtd_info *mtd) { … } static int mtk_nfc_attach_chip(struct nand_chip *chip) { … } static const struct nand_controller_ops mtk_nfc_controller_ops = …; static int mtk_nfc_nand_chip_init(struct device *dev, struct mtk_nfc *nfc, struct device_node *np) { … } static int mtk_nfc_nand_chips_init(struct device *dev, struct mtk_nfc *nfc) { … } static const struct mtk_nfc_caps mtk_nfc_caps_mt2701 = …; static const struct mtk_nfc_caps mtk_nfc_caps_mt2712 = …; static const struct mtk_nfc_caps mtk_nfc_caps_mt7622 = …; static const struct of_device_id mtk_nfc_id_table[] = …; MODULE_DEVICE_TABLE(of, mtk_nfc_id_table); static int mtk_nfc_probe(struct platform_device *pdev) { … } static void mtk_nfc_remove(struct platform_device *pdev) { … } #ifdef CONFIG_PM_SLEEP static int mtk_nfc_suspend(struct device *dev) { … } static int mtk_nfc_resume(struct device *dev) { … } static SIMPLE_DEV_PM_OPS(mtk_nfc_pm_ops, mtk_nfc_suspend, mtk_nfc_resume); #endif static struct platform_driver mtk_nfc_driver = …; module_platform_driver(…) …; MODULE_LICENSE(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …;
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