1 files changed, 0 insertions, 323 deletions

diff --git a/drivers/net/phy/mdio-mux-bcm-iproc.c b/drivers/net/phy/mdio-mux-bcm-iproc.c
deleted file mode 100644
index 42fb5f166136..000000000000
--- a/drivers/net/phy/mdio-mux-bcm-iproc.c
+++ /dev/null
@@ -1,323 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright 2016 Broadcom
- */
-#include <linux/clk.h>
-#include <linux/platform_device.h>
-#include <linux/device.h>
-#include <linux/of_mdio.h>
-#include <linux/module.h>
-#include <linux/phy.h>
-#include <linux/mdio-mux.h>
-#include <linux/delay.h>
-#include <linux/iopoll.h>
-
-#define MDIO_RATE_ADJ_EXT_OFFSET	0x000
-#define MDIO_RATE_ADJ_INT_OFFSET	0x004
-#define MDIO_RATE_ADJ_DIVIDENT_SHIFT	16
-
-#define MDIO_SCAN_CTRL_OFFSET		0x008
-#define MDIO_SCAN_CTRL_OVRIDE_EXT_MSTR	28
-
-#define MDIO_PARAM_OFFSET		0x23c
-#define MDIO_PARAM_MIIM_CYCLE		29
-#define MDIO_PARAM_INTERNAL_SEL		25
-#define MDIO_PARAM_BUS_ID		22
-#define MDIO_PARAM_C45_SEL		21
-#define MDIO_PARAM_PHY_ID		16
-#define MDIO_PARAM_PHY_DATA		0
-
-#define MDIO_READ_OFFSET		0x240
-#define MDIO_READ_DATA_MASK		0xffff
-#define MDIO_ADDR_OFFSET		0x244
-
-#define MDIO_CTRL_OFFSET		0x248
-#define MDIO_CTRL_WRITE_OP		0x1
-#define MDIO_CTRL_READ_OP		0x2
-
-#define MDIO_STAT_OFFSET		0x24c
-#define MDIO_STAT_DONE			1
-
-#define BUS_MAX_ADDR			32
-#define EXT_BUS_START_ADDR		16
-
-#define MDIO_REG_ADDR_SPACE_SIZE	0x250
-
-#define MDIO_OPERATING_FREQUENCY	11000000
-#define MDIO_RATE_ADJ_DIVIDENT		1
-
-struct iproc_mdiomux_desc {
-	void *mux_handle;
-	void __iomem *base;
-	struct device *dev;
-	struct mii_bus *mii_bus;
-	struct clk *core_clk;
-};
-
-static void mdio_mux_iproc_config(struct iproc_mdiomux_desc *md)
-{
-	u32 divisor;
-	u32 val;
-
-	/* Disable external mdio master access */
-	val = readl(md->base + MDIO_SCAN_CTRL_OFFSET);
-	val |= BIT(MDIO_SCAN_CTRL_OVRIDE_EXT_MSTR);
-	writel(val, md->base + MDIO_SCAN_CTRL_OFFSET);
-
-	if (md->core_clk) {
-		/* use rate adjust regs to derrive the mdio's operating
-		 * frequency from the specified core clock
-		 */
-		divisor = clk_get_rate(md->core_clk) / MDIO_OPERATING_FREQUENCY;
-		divisor = divisor / (MDIO_RATE_ADJ_DIVIDENT + 1);
-		val = divisor;
-		val |= MDIO_RATE_ADJ_DIVIDENT << MDIO_RATE_ADJ_DIVIDENT_SHIFT;
-		writel(val, md->base + MDIO_RATE_ADJ_EXT_OFFSET);
-		writel(val, md->base + MDIO_RATE_ADJ_INT_OFFSET);
-	}
-}
-
-static int iproc_mdio_wait_for_idle(void __iomem *base, bool result)
-{
-	u32 val;
-
-	return readl_poll_timeout(base + MDIO_STAT_OFFSET, val,
-				  (val & MDIO_STAT_DONE) == result,
-				  2000, 1000000);
-}
-
-/* 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,
-			  u16 phyid, u32 reg, u16 val, u32 op)
-{
-	u32 param;
-	int ret;
-
-	writel(0, base + MDIO_CTRL_OFFSET);
-	ret = iproc_mdio_wait_for_idle(base, 0);
-	if (ret)
-		goto err;
-
-	param = readl(base + MDIO_PARAM_OFFSET);
-	param |= phyid << MDIO_PARAM_PHY_ID;
-	param |= val << MDIO_PARAM_PHY_DATA;
-	if (reg & MII_ADDR_C45)
-		param |= BIT(MDIO_PARAM_C45_SEL);
-
-	writel(param, base + MDIO_PARAM_OFFSET);
-
-	writel(reg, base + MDIO_ADDR_OFFSET);
-
-	writel(op, base + MDIO_CTRL_OFFSET);
-
-	ret = iproc_mdio_wait_for_idle(base, 1);
-	if (ret)
-		goto err;
-
-	if (op == MDIO_CTRL_READ_OP)
-		ret = readl(base + MDIO_READ_OFFSET) & MDIO_READ_DATA_MASK;
-err:
-	return ret;
-}
-
-static int iproc_mdiomux_read(struct mii_bus *bus, int phyid, int reg)
-{
-	struct iproc_mdiomux_desc *md = bus->priv;
-	int ret;
-
-	ret = start_miim_ops(md->base, phyid, reg, 0, MDIO_CTRL_READ_OP);
-	if (ret < 0)
-		dev_err(&bus->dev, "mdiomux read operation failed!!!");
-
-	return ret;
-}
-
-static int iproc_mdiomux_write(struct mii_bus *bus,
-			       int phyid, int reg, u16 val)
-{
-	struct iproc_mdiomux_desc *md = bus->priv;
-	int ret;
-
-	/* Write val at reg offset */
-	ret = start_miim_ops(md->base, phyid, reg, val, MDIO_CTRL_WRITE_OP);
-	if (ret < 0)
-		dev_err(&bus->dev, "mdiomux write operation failed!!!");
-
-	return ret;
-}
-
-static int mdio_mux_iproc_switch_fn(int current_child, int desired_child,
-				    void *data)
-{
-	struct iproc_mdiomux_desc *md = data;
-	u32 param, bus_id;
-	bool bus_dir;
-
-	/* select bus and its properties */
-	bus_dir = (desired_child < EXT_BUS_START_ADDR);
-	bus_id = bus_dir ? desired_child : (desired_child - EXT_BUS_START_ADDR);
-
-	param = (bus_dir ? 1 : 0) << MDIO_PARAM_INTERNAL_SEL;
-	param |= (bus_id << MDIO_PARAM_BUS_ID);
-
-	writel(param, md->base + MDIO_PARAM_OFFSET);
-	return 0;
-}
-
-static int mdio_mux_iproc_probe(struct platform_device *pdev)
-{
-	struct iproc_mdiomux_desc *md;
-	struct mii_bus *bus;
-	struct resource *res;
-	int rc;
-
-	md = devm_kzalloc(&pdev->dev, sizeof(*md), GFP_KERNEL);
-	if (!md)
-		return -ENOMEM;
-	md->dev = &pdev->dev;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (res->start & 0xfff) {
-		/* For backward compatibility in case the
-		 * base address is specified with an offset.
-		 */
-		dev_info(&pdev->dev, "fix base address in dt-blob\n");
-		res->start &= ~0xfff;
-		res->end = res->start + MDIO_REG_ADDR_SPACE_SIZE - 1;
-	}
-	md->base = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(md->base)) {
-		dev_err(&pdev->dev, "failed to ioremap register\n");
-		return PTR_ERR(md->base);
-	}
-
-	md->mii_bus = devm_mdiobus_alloc(&pdev->dev);
-	if (!md->mii_bus) {
-		dev_err(&pdev->dev, "mdiomux bus alloc failed\n");
-		return -ENOMEM;
-	}
-
-	md->core_clk = devm_clk_get(&pdev->dev, NULL);
-	if (md->core_clk == ERR_PTR(-ENOENT) ||
-	    md->core_clk == ERR_PTR(-EINVAL))
-		md->core_clk = NULL;
-	else if (IS_ERR(md->core_clk))
-		return PTR_ERR(md->core_clk);
-
-	rc = clk_prepare_enable(md->core_clk);
-	if (rc) {
-		dev_err(&pdev->dev, "failed to enable core clk\n");
-		return rc;
-	}
-
-	bus = md->mii_bus;
-	bus->priv = md;
-	bus->name = "iProc MDIO mux bus";
-	snprintf(bus->id, MII_BUS_ID_SIZE, "%s-%d", pdev->name, pdev->id);
-	bus->parent = &pdev->dev;
-	bus->read = iproc_mdiomux_read;
-	bus->write = iproc_mdiomux_write;
-
-	bus->phy_mask = ~0;
-	bus->dev.of_node = pdev->dev.of_node;
-	rc = mdiobus_register(bus);
-	if (rc) {
-		dev_err(&pdev->dev, "mdiomux registration failed\n");
-		goto out_clk;
-	}
-
-	platform_set_drvdata(pdev, md);
-
-	rc = mdio_mux_init(md->dev, md->dev->of_node, mdio_mux_iproc_switch_fn,
-			   &md->mux_handle, md, md->mii_bus);
-	if (rc) {
-		dev_info(md->dev, "mdiomux initialization failed\n");
-		goto out_register;
-	}
-
-	mdio_mux_iproc_config(md);
-
-	dev_info(md->dev, "iProc mdiomux registered\n");
-	return 0;
-
-out_register:
-	mdiobus_unregister(bus);
-out_clk:
-	clk_disable_unprepare(md->core_clk);
-	return rc;
-}
-
-static int mdio_mux_iproc_remove(struct platform_device *pdev)
-{
-	struct iproc_mdiomux_desc *md = platform_get_drvdata(pdev);
-
-	mdio_mux_uninit(md->mux_handle);
-	mdiobus_unregister(md->mii_bus);
-	clk_disable_unprepare(md->core_clk);
-
-	return 0;
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int mdio_mux_iproc_suspend(struct device *dev)
-{
-	struct iproc_mdiomux_desc *md = dev_get_drvdata(dev);
-
-	clk_disable_unprepare(md->core_clk);
-
-	return 0;
-}
-
-static int mdio_mux_iproc_resume(struct device *dev)
-{
-	struct iproc_mdiomux_desc *md = dev_get_drvdata(dev);
-	int rc;
-
-	rc = clk_prepare_enable(md->core_clk);
-	if (rc) {
-		dev_err(md->dev, "failed to enable core clk\n");
-		return rc;
-	}
-	mdio_mux_iproc_config(md);
-
-	return 0;
-}
-#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[] = {
-	{
-		.compatible = "brcm,mdio-mux-iproc",
-	},
-	{},
-};
-MODULE_DEVICE_TABLE(of, mdio_mux_iproc_match);
-
-static struct platform_driver mdiomux_iproc_driver = {
-	.driver = {
-		.name		= "mdio-mux-iproc",
-		.of_match_table = mdio_mux_iproc_match,
-		.pm		= &mdio_mux_iproc_pm_ops,
-	},
-	.probe		= mdio_mux_iproc_probe,
-	.remove		= mdio_mux_iproc_remove,
-};
-
-module_platform_driver(mdiomux_iproc_driver);
-
-MODULE_DESCRIPTION("iProc MDIO Mux Bus Driver");
-MODULE_AUTHOR("Pramod Kumar <pramod.kumar@broadcom.com>");
-MODULE_LICENSE("GPL v2");