// SPDX-License-Identifier: GPL-2.0+ /* Copyright (c) 2020 Intel Corporation. */ #include <linux/clk.h> #include <linux/completion.h> #include <linux/dmaengine.h> #include <linux/dma-direction.h> #include <linux/dma-mapping.h> #include <linux/err.h> #include <linux/init.h> #include <linux/iopoll.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/mtd/mtd.h> #include <linux/mtd/rawnand.h> #include <linux/mtd/nand.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/sched.h> #include <linux/slab.h> #include <linux/types.h> #include <linux/units.h> #include <asm/unaligned.h> #define EBU_CLC … #define EBU_CLC_RST … #define EBU_ADDR_SEL(n) … /* 5 bits 26:22 included for comparison in the ADDR_SELx */ #define EBU_ADDR_MASK(x) … #define EBU_ADDR_SEL_REGEN … #define EBU_BUSCON(n) … #define EBU_BUSCON_CMULT_V4 … #define EBU_BUSCON_RECOVC(n) … #define EBU_BUSCON_HOLDC(n) … #define EBU_BUSCON_WAITRDC(n) … #define EBU_BUSCON_WAITWRC(n) … #define EBU_BUSCON_BCGEN_CS … #define EBU_BUSCON_SETUP_EN … #define EBU_BUSCON_ALEC … #define EBU_CON … #define EBU_CON_NANDM_EN … #define EBU_CON_NANDM_DIS … #define EBU_CON_CSMUX_E_EN … #define EBU_CON_ALE_P_LOW … #define EBU_CON_CLE_P_LOW … #define EBU_CON_CS_P_LOW … #define EBU_CON_SE_P_LOW … #define EBU_CON_WP_P_LOW … #define EBU_CON_PRE_P_LOW … #define EBU_CON_IN_CS_S(n) … #define EBU_CON_OUT_CS_S(n) … #define EBU_CON_LAT_EN_CS_P … #define EBU_WAIT … #define EBU_WAIT_RDBY … #define EBU_WAIT_WR_C … #define HSNAND_CTL1 … #define HSNAND_CTL1_ADDR_SHIFT … #define HSNAND_CTL2 … #define HSNAND_CTL2_ADDR_SHIFT … #define HSNAND_CTL2_CYC_N_V5 … #define HSNAND_INT_MSK_CTL … #define HSNAND_INT_MSK_CTL_WR_C … #define HSNAND_INT_STA … #define HSNAND_INT_STA_WR_C … #define HSNAND_CTL … #define HSNAND_CTL_ENABLE_ECC … #define HSNAND_CTL_GO … #define HSNAND_CTL_CE_SEL_CS(n) … #define HSNAND_CTL_RW_READ … #define HSNAND_CTL_RW_WRITE … #define HSNAND_CTL_ECC_OFF_V8TH … #define HSNAND_CTL_CKFF_EN … #define HSNAND_CTL_MSG_EN … #define HSNAND_PARA0 … #define HSNAND_PARA0_PAGE_V8192 … #define HSNAND_PARA0_PIB_V256 … #define HSNAND_PARA0_BYP_EN_NP … #define HSNAND_PARA0_BYP_DEC_NP … #define HSNAND_PARA0_TYPE_ONFI … #define HSNAND_PARA0_ADEP_EN … #define HSNAND_CMSG_0 … #define HSNAND_CMSG_1 … #define HSNAND_ALE_OFFS … #define HSNAND_CLE_OFFS … #define HSNAND_CS_OFFS … #define HSNAND_ECC_OFFSET … #define MAX_CS … #define USEC_PER_SEC … struct ebu_nand_cs { … }; struct ebu_nand_controller { … }; static inline struct ebu_nand_controller *nand_to_ebu(struct nand_chip *chip) { … } static int ebu_nand_waitrdy(struct nand_chip *chip, int timeout_ms) { … } static u8 ebu_nand_readb(struct nand_chip *chip) { … } static void ebu_nand_writeb(struct nand_chip *chip, u32 offset, u8 value) { … } static void ebu_read_buf(struct nand_chip *chip, u_char *buf, unsigned int len) { … } static void ebu_write_buf(struct nand_chip *chip, const u_char *buf, int len) { … } static void ebu_nand_disable(struct nand_chip *chip) { … } static void ebu_select_chip(struct nand_chip *chip) { … } static int ebu_nand_set_timings(struct nand_chip *chip, int csline, const struct nand_interface_config *conf) { … } static int ebu_nand_ooblayout_ecc(struct mtd_info *mtd, int section, struct mtd_oob_region *oobregion) { … } static int ebu_nand_ooblayout_free(struct mtd_info *mtd, int section, struct mtd_oob_region *oobregion) { … } static const struct mtd_ooblayout_ops ebu_nand_ooblayout_ops = …; static void ebu_dma_rx_callback(void *cookie) { … } static void ebu_dma_tx_callback(void *cookie) { … } static int ebu_dma_start(struct ebu_nand_controller *ebu_host, u32 dir, const u8 *buf, u32 len) { … } static void ebu_nand_trigger(struct ebu_nand_controller *ebu_host, int page, u32 cmd) { … } static int ebu_nand_read_page_hwecc(struct nand_chip *chip, u8 *buf, int oob_required, int page) { … } static int ebu_nand_write_page_hwecc(struct nand_chip *chip, const u8 *buf, int oob_required, int page) { … } static const u8 ecc_strength[] = …; static int ebu_nand_attach_chip(struct nand_chip *chip) { … } static int ebu_nand_exec_op(struct nand_chip *chip, const struct nand_operation *op, bool check_only) { … } static const struct nand_controller_ops ebu_nand_controller_ops = …; static void ebu_dma_cleanup(struct ebu_nand_controller *ebu_host) { … } static int ebu_nand_probe(struct platform_device *pdev) { … } static void ebu_nand_remove(struct platform_device *pdev) { … } static const struct of_device_id ebu_nand_match[] = …; MODULE_DEVICE_TABLE(of, ebu_nand_match); static struct platform_driver ebu_nand_driver = …; module_platform_driver(…) …; MODULE_LICENSE(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …;
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