// SPDX-License-Identifier: GPL-2.0 /* * Copyright 2016 Broadcom */ #include <linux/align.h> #include <linux/clk.h> #include <linux/delay.h> #include <linux/device.h> #include <linux/iopoll.h> #include <linux/mdio-mux.h> #include <linux/module.h> #include <linux/of_mdio.h> #include <linux/phy.h> #include <linux/platform_device.h> #include <linux/sizes.h> #define MDIO_RATE_ADJ_EXT_OFFSET … #define MDIO_RATE_ADJ_INT_OFFSET … #define MDIO_RATE_ADJ_DIVIDENT_SHIFT … #define MDIO_SCAN_CTRL_OFFSET … #define MDIO_SCAN_CTRL_OVRIDE_EXT_MSTR … #define MDIO_PARAM_OFFSET … #define MDIO_PARAM_MIIM_CYCLE … #define MDIO_PARAM_INTERNAL_SEL … #define MDIO_PARAM_BUS_ID … #define MDIO_PARAM_C45_SEL … #define MDIO_PARAM_PHY_ID … #define MDIO_PARAM_PHY_DATA … #define MDIO_READ_OFFSET … #define MDIO_READ_DATA_MASK … #define MDIO_ADDR_OFFSET … #define MDIO_CTRL_OFFSET … #define MDIO_CTRL_WRITE_OP … #define MDIO_CTRL_READ_OP … #define MDIO_STAT_OFFSET … #define MDIO_STAT_DONE … #define BUS_MAX_ADDR … #define EXT_BUS_START_ADDR … #define MDIO_REG_ADDR_SPACE_SIZE … #define MDIO_OPERATING_FREQUENCY … #define MDIO_RATE_ADJ_DIVIDENT … struct iproc_mdiomux_desc { … }; static void mdio_mux_iproc_config(struct iproc_mdiomux_desc *md) { … } static int iproc_mdio_wait_for_idle(void __iomem *base, bool result) { … } /* start_miim_ops- Program and start MDIO transaction over mdio bus. * @base: Base address * @phyid: phyid of the selected bus. * @reg: register offset to be read/written. * @val :0 if read op else value to be written in @reg; * @op: Operation that need to be carried out. * MDIO_CTRL_READ_OP: Read transaction. * MDIO_CTRL_WRITE_OP: Write transaction. * * Return value: Successful Read operation returns read reg values and write * operation returns 0. Failure operation returns negative error code. */ static int start_miim_ops(void __iomem *base, bool c45, u16 phyid, u32 reg, u16 val, u32 op) { … } static int iproc_mdiomux_read_c22(struct mii_bus *bus, int phyid, int reg) { … } static int iproc_mdiomux_read_c45(struct mii_bus *bus, int phyid, int devad, int reg) { … } static int iproc_mdiomux_write_c22(struct mii_bus *bus, int phyid, int reg, u16 val) { … } static int iproc_mdiomux_write_c45(struct mii_bus *bus, int phyid, int devad, int reg, u16 val) { … } static int mdio_mux_iproc_switch_fn(int current_child, int desired_child, void *data) { … } static int mdio_mux_iproc_probe(struct platform_device *pdev) { … } static void mdio_mux_iproc_remove(struct platform_device *pdev) { … } #ifdef CONFIG_PM_SLEEP static int mdio_mux_iproc_suspend(struct device *dev) { … } static int mdio_mux_iproc_resume(struct device *dev) { … } #endif static SIMPLE_DEV_PM_OPS(mdio_mux_iproc_pm_ops, mdio_mux_iproc_suspend, mdio_mux_iproc_resume); static const struct of_device_id mdio_mux_iproc_match[] = …; MODULE_DEVICE_TABLE(of, mdio_mux_iproc_match); static struct platform_driver mdiomux_iproc_driver = …; module_platform_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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