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authorFelipe Balbi <balbi@ti.com>2013-03-07 11:01:15 +0200
committerFelipe Balbi <balbi@ti.com>2013-03-18 11:18:04 +0200
commita0e631235a04f8a815a1ecec93ef418f7d1e6086 (patch)
tree448db1daeeab6801efdedf77e25823ee27a403c8 /drivers/usb/otg/mxs-phy.c
parent110ff6d04162a8a3b288019eaf84dee0800270e0 (diff)
usb: phy: move all PHY drivers to drivers/usb/phy/
that's a much more reasonable location for those drivers. It helps us saving drivers/usb/otg/ for when we actually start adding generic OTG code. Also completely delete drivers/usb/otg/ as there's nothing left there. Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/otg/mxs-phy.c')
-rw-r--r--drivers/usb/otg/mxs-phy.c220
1 files changed, 0 insertions, 220 deletions
diff --git a/drivers/usb/otg/mxs-phy.c b/drivers/usb/otg/mxs-phy.c
deleted file mode 100644
index 9d4381e64d51..000000000000
--- a/drivers/usb/otg/mxs-phy.c
+++ /dev/null
@@ -1,220 +0,0 @@
-/*
- * Copyright 2012 Freescale Semiconductor, Inc.
- * Copyright (C) 2012 Marek Vasut <marex@denx.de>
- * on behalf of DENX Software Engineering GmbH
- *
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
- *
- * http://www.opensource.org/licenses/gpl-license.html
- * http://www.gnu.org/copyleft/gpl.html
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/platform_device.h>
-#include <linux/clk.h>
-#include <linux/usb/otg.h>
-#include <linux/stmp_device.h>
-#include <linux/delay.h>
-#include <linux/err.h>
-#include <linux/io.h>
-
-#define DRIVER_NAME "mxs_phy"
-
-#define HW_USBPHY_PWD 0x00
-#define HW_USBPHY_CTRL 0x30
-#define HW_USBPHY_CTRL_SET 0x34
-#define HW_USBPHY_CTRL_CLR 0x38
-
-#define BM_USBPHY_CTRL_SFTRST BIT(31)
-#define BM_USBPHY_CTRL_CLKGATE BIT(30)
-#define BM_USBPHY_CTRL_ENUTMILEVEL3 BIT(15)
-#define BM_USBPHY_CTRL_ENUTMILEVEL2 BIT(14)
-#define BM_USBPHY_CTRL_ENHOSTDISCONDETECT BIT(1)
-
-struct mxs_phy {
- struct usb_phy phy;
- struct clk *clk;
-};
-
-#define to_mxs_phy(p) container_of((p), struct mxs_phy, phy)
-
-static void mxs_phy_hw_init(struct mxs_phy *mxs_phy)
-{
- void __iomem *base = mxs_phy->phy.io_priv;
-
- stmp_reset_block(base + HW_USBPHY_CTRL);
-
- /* Power up the PHY */
- writel(0, base + HW_USBPHY_PWD);
-
- /* enable FS/LS device */
- writel(BM_USBPHY_CTRL_ENUTMILEVEL2 |
- BM_USBPHY_CTRL_ENUTMILEVEL3,
- base + HW_USBPHY_CTRL_SET);
-}
-
-static int mxs_phy_init(struct usb_phy *phy)
-{
- struct mxs_phy *mxs_phy = to_mxs_phy(phy);
-
- clk_prepare_enable(mxs_phy->clk);
- mxs_phy_hw_init(mxs_phy);
-
- return 0;
-}
-
-static void mxs_phy_shutdown(struct usb_phy *phy)
-{
- struct mxs_phy *mxs_phy = to_mxs_phy(phy);
-
- writel(BM_USBPHY_CTRL_CLKGATE,
- phy->io_priv + HW_USBPHY_CTRL_SET);
-
- clk_disable_unprepare(mxs_phy->clk);
-}
-
-static int mxs_phy_suspend(struct usb_phy *x, int suspend)
-{
- struct mxs_phy *mxs_phy = to_mxs_phy(x);
-
- if (suspend) {
- writel(0xffffffff, x->io_priv + HW_USBPHY_PWD);
- writel(BM_USBPHY_CTRL_CLKGATE,
- x->io_priv + HW_USBPHY_CTRL_SET);
- clk_disable_unprepare(mxs_phy->clk);
- } else {
- clk_prepare_enable(mxs_phy->clk);
- writel(BM_USBPHY_CTRL_CLKGATE,
- x->io_priv + HW_USBPHY_CTRL_CLR);
- writel(0, x->io_priv + HW_USBPHY_PWD);
- }
-
- return 0;
-}
-
-static int mxs_phy_on_connect(struct usb_phy *phy,
- enum usb_device_speed speed)
-{
- dev_dbg(phy->dev, "%s speed device has connected\n",
- (speed == USB_SPEED_HIGH) ? "high" : "non-high");
-
- if (speed == USB_SPEED_HIGH)
- writel(BM_USBPHY_CTRL_ENHOSTDISCONDETECT,
- phy->io_priv + HW_USBPHY_CTRL_SET);
-
- return 0;
-}
-
-static int mxs_phy_on_disconnect(struct usb_phy *phy,
- enum usb_device_speed speed)
-{
- dev_dbg(phy->dev, "%s speed device has disconnected\n",
- (speed == USB_SPEED_HIGH) ? "high" : "non-high");
-
- if (speed == USB_SPEED_HIGH)
- writel(BM_USBPHY_CTRL_ENHOSTDISCONDETECT,
- phy->io_priv + HW_USBPHY_CTRL_CLR);
-
- return 0;
-}
-
-static int mxs_phy_probe(struct platform_device *pdev)
-{
- struct resource *res;
- void __iomem *base;
- struct clk *clk;
- struct mxs_phy *mxs_phy;
- int ret;
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(&pdev->dev, "can't get device resources\n");
- return -ENOENT;
- }
-
- base = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(base))
- return PTR_ERR(base);
-
- clk = devm_clk_get(&pdev->dev, NULL);
- if (IS_ERR(clk)) {
- dev_err(&pdev->dev,
- "can't get the clock, err=%ld", PTR_ERR(clk));
- return PTR_ERR(clk);
- }
-
- mxs_phy = devm_kzalloc(&pdev->dev, sizeof(*mxs_phy), GFP_KERNEL);
- if (!mxs_phy) {
- dev_err(&pdev->dev, "Failed to allocate USB PHY structure!\n");
- return -ENOMEM;
- }
-
- mxs_phy->phy.io_priv = base;
- mxs_phy->phy.dev = &pdev->dev;
- mxs_phy->phy.label = DRIVER_NAME;
- mxs_phy->phy.init = mxs_phy_init;
- mxs_phy->phy.shutdown = mxs_phy_shutdown;
- mxs_phy->phy.set_suspend = mxs_phy_suspend;
- mxs_phy->phy.notify_connect = mxs_phy_on_connect;
- mxs_phy->phy.notify_disconnect = mxs_phy_on_disconnect;
-
- ATOMIC_INIT_NOTIFIER_HEAD(&mxs_phy->phy.notifier);
-
- mxs_phy->clk = clk;
-
- platform_set_drvdata(pdev, &mxs_phy->phy);
-
- ret = usb_add_phy_dev(&mxs_phy->phy);
- if (ret)
- return ret;
-
- return 0;
-}
-
-static int mxs_phy_remove(struct platform_device *pdev)
-{
- struct mxs_phy *mxs_phy = platform_get_drvdata(pdev);
-
- usb_remove_phy(&mxs_phy->phy);
-
- platform_set_drvdata(pdev, NULL);
-
- return 0;
-}
-
-static const struct of_device_id mxs_phy_dt_ids[] = {
- { .compatible = "fsl,imx23-usbphy", },
- { /* sentinel */ }
-};
-MODULE_DEVICE_TABLE(of, mxs_phy_dt_ids);
-
-static struct platform_driver mxs_phy_driver = {
- .probe = mxs_phy_probe,
- .remove = mxs_phy_remove,
- .driver = {
- .name = DRIVER_NAME,
- .owner = THIS_MODULE,
- .of_match_table = mxs_phy_dt_ids,
- },
-};
-
-static int __init mxs_phy_module_init(void)
-{
- return platform_driver_register(&mxs_phy_driver);
-}
-postcore_initcall(mxs_phy_module_init);
-
-static void __exit mxs_phy_module_exit(void)
-{
- platform_driver_unregister(&mxs_phy_driver);
-}
-module_exit(mxs_phy_module_exit);
-
-MODULE_ALIAS("platform:mxs-usb-phy");
-MODULE_AUTHOR("Marek Vasut <marex@denx.de>");
-MODULE_AUTHOR("Richard Zhao <richard.zhao@freescale.com>");
-MODULE_DESCRIPTION("Freescale MXS USB PHY driver");
-MODULE_LICENSE("GPL");