// SPDX-License-Identifier: GPL-2.0-only /* * i.MX6 OCOTP fusebox driver * * Copyright (c) 2015 Pengutronix, Philipp Zabel <[email protected]> * * Copyright 2019 NXP * * Based on the barebox ocotp driver, * Copyright (c) 2010 Baruch Siach <[email protected]>, * Orex Computed Radiography * * Write support based on the fsl_otp driver, * Copyright (C) 2010-2013 Freescale Semiconductor, Inc */ #include <linux/clk.h> #include <linux/device.h> #include <linux/io.h> #include <linux/module.h> #include <linux/nvmem-provider.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/delay.h> #define IMX_OCOTP_OFFSET_B0W0 … #define IMX_OCOTP_OFFSET_PER_WORD … #define IMX_OCOTP_ADDR_CTRL … #define IMX_OCOTP_ADDR_CTRL_SET … #define IMX_OCOTP_ADDR_CTRL_CLR … #define IMX_OCOTP_ADDR_TIMING … #define IMX_OCOTP_ADDR_DATA0 … #define IMX_OCOTP_ADDR_DATA1 … #define IMX_OCOTP_ADDR_DATA2 … #define IMX_OCOTP_ADDR_DATA3 … #define IMX_OCOTP_BM_CTRL_ADDR … #define IMX_OCOTP_BM_CTRL_BUSY … #define IMX_OCOTP_BM_CTRL_ERROR … #define IMX_OCOTP_BM_CTRL_REL_SHADOWS … #define IMX_OCOTP_BM_CTRL_ADDR_8MP … #define IMX_OCOTP_BM_CTRL_BUSY_8MP … #define IMX_OCOTP_BM_CTRL_ERROR_8MP … #define IMX_OCOTP_BM_CTRL_REL_SHADOWS_8MP … #define IMX_OCOTP_BM_CTRL_DEFAULT … #define IMX_OCOTP_BM_CTRL_8MP … #define TIMING_STROBE_PROG_US … #define TIMING_STROBE_READ_NS … #define TIMING_RELAX_NS … #define DEF_FSOURCE … #define DEF_STROBE_PROG … #define IMX_OCOTP_WR_UNLOCK … #define IMX_OCOTP_READ_LOCKED_VAL … static DEFINE_MUTEX(ocotp_mutex); struct ocotp_priv { … }; struct ocotp_ctrl_reg { … }; struct ocotp_params { … }; static int imx_ocotp_wait_for_busy(struct ocotp_priv *priv, u32 flags) { … } static void imx_ocotp_clr_err_if_set(struct ocotp_priv *priv) { … } static int imx_ocotp_read(void *context, unsigned int offset, void *val, size_t bytes) { … } static int imx_ocotp_cell_pp(void *context, const char *id, int index, unsigned int offset, void *data, size_t bytes) { … } static void imx_ocotp_set_imx6_timing(struct ocotp_priv *priv) { … } static void imx_ocotp_set_imx7_timing(struct ocotp_priv *priv) { … } static int imx_ocotp_write(void *context, unsigned int offset, void *val, size_t bytes) { … } static struct nvmem_config imx_ocotp_nvmem_config = …; static const struct ocotp_params imx6q_params = …; static const struct ocotp_params imx6sl_params = …; static const struct ocotp_params imx6sll_params = …; static const struct ocotp_params imx6sx_params = …; static const struct ocotp_params imx6ul_params = …; static const struct ocotp_params imx6ull_params = …; static const struct ocotp_params imx7d_params = …; static const struct ocotp_params imx7ulp_params = …; static const struct ocotp_params imx8mq_params = …; static const struct ocotp_params imx8mm_params = …; static const struct ocotp_params imx8mn_params = …; static const struct ocotp_params imx8mp_params = …; static const struct of_device_id imx_ocotp_dt_ids[] = …; MODULE_DEVICE_TABLE(of, imx_ocotp_dt_ids); static void imx_ocotp_fixup_dt_cell_info(struct nvmem_device *nvmem, struct nvmem_cell_info *cell) { … } static int imx_ocotp_probe(struct platform_device *pdev) { … } static struct platform_driver imx_ocotp_driver = …; module_platform_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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