forked from luck/tmp_suning_uos_patched
usb: phy: Remove unused Renesas R-Car (Gen1) USB PHY driver
As of commit 3d7608e4c1 ("ARM: shmobile: bockw: remove legacy
board file and config"), the Renesas R-Car (Gen1) USB PHY driver is no
longer used.
In theory it could still be used on R-Car Gen1 SoCs, but that would
require adding DT support to the driver. Instead, a new driver using the
generic PHY framework should be written, as was done for R-Car Gen2.
Remove the driver for good.
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Geert Uytterhoeven
Felipe Balbi
parent
2de59c09fe
commit
375da6271b
|
|
@ -186,19 +186,6 @@ config USB_MXS_PHY
|
||||||
|
|
||||||
MXS Phy is used by some of the i.MX SoCs, for example imx23/28/6x.
|
MXS Phy is used by some of the i.MX SoCs, for example imx23/28/6x.
|
||||||
|
|
||||||
config USB_RCAR_PHY
|
|
||||||
tristate "Renesas R-Car USB PHY support"
|
|
||||||
depends on USB || USB_GADGET
|
|
||||||
depends on ARCH_R8A7778 || ARCH_R8A7779 || COMPILE_TEST
|
|
||||||
select USB_PHY
|
|
||||||
help
|
|
||||||
Say Y here to add support for the Renesas R-Car USB common PHY driver.
|
|
||||||
This chip is typically used as USB PHY for USB host, gadget.
|
|
||||||
This driver supports R8A7778 and R8A7779.
|
|
||||||
|
|
||||||
To compile this driver as a module, choose M here: the
|
|
||||||
module will be called phy-rcar-usb.
|
|
||||||
|
|
||||||
config USB_ULPI
|
config USB_ULPI
|
||||||
bool "Generic ULPI Transceiver Driver"
|
bool "Generic ULPI Transceiver Driver"
|
||||||
depends on ARM || ARM64
|
depends on ARM || ARM64
|
||||||
|
|
|
||||||
|
|
@ -23,7 +23,6 @@ obj-$(CONFIG_USB_MSM_OTG) += phy-msm-usb.o
|
||||||
obj-$(CONFIG_USB_QCOM_8X16_PHY) += phy-qcom-8x16-usb.o
|
obj-$(CONFIG_USB_QCOM_8X16_PHY) += phy-qcom-8x16-usb.o
|
||||||
obj-$(CONFIG_USB_MV_OTG) += phy-mv-usb.o
|
obj-$(CONFIG_USB_MV_OTG) += phy-mv-usb.o
|
||||||
obj-$(CONFIG_USB_MXS_PHY) += phy-mxs-usb.o
|
obj-$(CONFIG_USB_MXS_PHY) += phy-mxs-usb.o
|
||||||
obj-$(CONFIG_USB_RCAR_PHY) += phy-rcar-usb.o
|
|
||||||
obj-$(CONFIG_USB_ULPI) += phy-ulpi.o
|
obj-$(CONFIG_USB_ULPI) += phy-ulpi.o
|
||||||
obj-$(CONFIG_USB_ULPI_VIEWPORT) += phy-ulpi-viewport.o
|
obj-$(CONFIG_USB_ULPI_VIEWPORT) += phy-ulpi-viewport.o
|
||||||
obj-$(CONFIG_KEYSTONE_USB_PHY) += phy-keystone.o
|
obj-$(CONFIG_KEYSTONE_USB_PHY) += phy-keystone.o
|
||||||
|
|
|
||||||
|
|
@ -1,247 +0,0 @@
|
||||||
/*
|
|
||||||
* Renesas R-Car USB phy driver
|
|
||||||
*
|
|
||||||
* Copyright (C) 2012-2013 Renesas Solutions Corp.
|
|
||||||
* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
|
|
||||||
* Copyright (C) 2013 Cogent Embedded, Inc.
|
|
||||||
*
|
|
||||||
* This program is free software; you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License version 2 as
|
|
||||||
* published by the Free Software Foundation.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#include <linux/delay.h>
|
|
||||||
#include <linux/io.h>
|
|
||||||
#include <linux/usb/otg.h>
|
|
||||||
#include <linux/platform_device.h>
|
|
||||||
#include <linux/spinlock.h>
|
|
||||||
#include <linux/module.h>
|
|
||||||
#include <linux/platform_data/usb-rcar-phy.h>
|
|
||||||
|
|
||||||
/* REGS block */
|
|
||||||
#define USBPCTRL0 0x00
|
|
||||||
#define USBPCTRL1 0x04
|
|
||||||
#define USBST 0x08
|
|
||||||
#define USBEH0 0x0C
|
|
||||||
#define USBOH0 0x1C
|
|
||||||
#define USBCTL0 0x58
|
|
||||||
|
|
||||||
/* High-speed signal quality characteristic control registers (R8A7778 only) */
|
|
||||||
#define HSQCTL1 0x24
|
|
||||||
#define HSQCTL2 0x28
|
|
||||||
|
|
||||||
/* USBPCTRL0 */
|
|
||||||
#define OVC2 (1 << 10) /* (R8A7779 only) */
|
|
||||||
/* Switches the OVC input pin for port 2: */
|
|
||||||
/* 1: USB_OVC2, 0: OVC2 */
|
|
||||||
#define OVC1_VBUS1 (1 << 9) /* Switches the OVC input pin for port 1: */
|
|
||||||
/* 1: USB_OVC1, 0: OVC1/VBUS1 */
|
|
||||||
/* Function mode: set to 0 */
|
|
||||||
#define OVC0 (1 << 8) /* Switches the OVC input pin for port 0: */
|
|
||||||
/* 1: USB_OVC0 pin, 0: OVC0 */
|
|
||||||
#define OVC2_ACT (1 << 6) /* (R8A7779 only) */
|
|
||||||
/* Host mode: OVC2 polarity: */
|
|
||||||
/* 1: active-high, 0: active-low */
|
|
||||||
#define PENC (1 << 4) /* Function mode: output level of PENC1 pin: */
|
|
||||||
/* 1: high, 0: low */
|
|
||||||
#define OVC0_ACT (1 << 3) /* Host mode: OVC0 polarity: */
|
|
||||||
/* 1: active-high, 0: active-low */
|
|
||||||
#define OVC1_ACT (1 << 1) /* Host mode: OVC1 polarity: */
|
|
||||||
/* 1: active-high, 0: active-low */
|
|
||||||
/* Function mode: be sure to set to 1 */
|
|
||||||
#define PORT1 (1 << 0) /* Selects port 1 mode: */
|
|
||||||
/* 1: function, 0: host */
|
|
||||||
/* USBPCTRL1 */
|
|
||||||
#define PHY_RST (1 << 2)
|
|
||||||
#define PLL_ENB (1 << 1)
|
|
||||||
#define PHY_ENB (1 << 0)
|
|
||||||
|
|
||||||
/* USBST */
|
|
||||||
#define ST_ACT (1 << 31)
|
|
||||||
#define ST_PLL (1 << 30)
|
|
||||||
|
|
||||||
struct rcar_usb_phy_priv {
|
|
||||||
struct usb_phy phy;
|
|
||||||
spinlock_t lock;
|
|
||||||
|
|
||||||
void __iomem *reg0;
|
|
||||||
void __iomem *reg1;
|
|
||||||
int counter;
|
|
||||||
};
|
|
||||||
|
|
||||||
#define usb_phy_to_priv(p) container_of(p, struct rcar_usb_phy_priv, phy)
|
|
||||||
|
|
||||||
|
|
||||||
/*
|
|
||||||
* USB initial/install operation.
|
|
||||||
*
|
|
||||||
* This function setup USB phy.
|
|
||||||
* The used value and setting order came from
|
|
||||||
* [USB :: Initial setting] on datasheet.
|
|
||||||
*/
|
|
||||||
static int rcar_usb_phy_init(struct usb_phy *phy)
|
|
||||||
{
|
|
||||||
struct rcar_usb_phy_priv *priv = usb_phy_to_priv(phy);
|
|
||||||
struct device *dev = phy->dev;
|
|
||||||
struct rcar_phy_platform_data *pdata = dev_get_platdata(dev);
|
|
||||||
void __iomem *reg0 = priv->reg0;
|
|
||||||
void __iomem *reg1 = priv->reg1;
|
|
||||||
static const u8 ovcn_act[] = { OVC0_ACT, OVC1_ACT, OVC2_ACT };
|
|
||||||
int i;
|
|
||||||
u32 val;
|
|
||||||
unsigned long flags;
|
|
||||||
|
|
||||||
spin_lock_irqsave(&priv->lock, flags);
|
|
||||||
if (priv->counter++ == 0) {
|
|
||||||
|
|
||||||
/*
|
|
||||||
* USB phy start-up
|
|
||||||
*/
|
|
||||||
|
|
||||||
/* (1) USB-PHY standby release */
|
|
||||||
iowrite32(PHY_ENB, (reg0 + USBPCTRL1));
|
|
||||||
|
|
||||||
/* (2) start USB-PHY internal PLL */
|
|
||||||
iowrite32(PHY_ENB | PLL_ENB, (reg0 + USBPCTRL1));
|
|
||||||
|
|
||||||
/* (3) set USB-PHY in accord with the conditions of usage */
|
|
||||||
if (reg1) {
|
|
||||||
u32 hsqctl1 = pdata->ferrite_bead ? 0x41 : 0;
|
|
||||||
u32 hsqctl2 = pdata->ferrite_bead ? 0x0d : 7;
|
|
||||||
|
|
||||||
iowrite32(hsqctl1, reg1 + HSQCTL1);
|
|
||||||
iowrite32(hsqctl2, reg1 + HSQCTL2);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* (4) USB module status check */
|
|
||||||
for (i = 0; i < 1024; i++) {
|
|
||||||
udelay(10);
|
|
||||||
val = ioread32(reg0 + USBST);
|
|
||||||
if (val == (ST_ACT | ST_PLL))
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (val != (ST_ACT | ST_PLL)) {
|
|
||||||
dev_err(dev, "USB phy not ready\n");
|
|
||||||
goto phy_init_end;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* (5) USB-PHY reset clear */
|
|
||||||
iowrite32(PHY_ENB | PLL_ENB | PHY_RST, (reg0 + USBPCTRL1));
|
|
||||||
|
|
||||||
/* Board specific port settings */
|
|
||||||
val = 0;
|
|
||||||
if (pdata->port1_func)
|
|
||||||
val |= PORT1;
|
|
||||||
if (pdata->penc1)
|
|
||||||
val |= PENC;
|
|
||||||
for (i = 0; i < 3; i++) {
|
|
||||||
/* OVCn bits follow each other in the right order */
|
|
||||||
if (pdata->ovc_pin[i].select_3_3v)
|
|
||||||
val |= OVC0 << i;
|
|
||||||
/* OVCn_ACT bits are spaced by irregular intervals */
|
|
||||||
if (pdata->ovc_pin[i].active_high)
|
|
||||||
val |= ovcn_act[i];
|
|
||||||
}
|
|
||||||
iowrite32(val, (reg0 + USBPCTRL0));
|
|
||||||
|
|
||||||
/*
|
|
||||||
* Bus alignment settings
|
|
||||||
*/
|
|
||||||
|
|
||||||
/* (1) EHCI bus alignment (little endian) */
|
|
||||||
iowrite32(0x00000000, (reg0 + USBEH0));
|
|
||||||
|
|
||||||
/* (1) OHCI bus alignment (little endian) */
|
|
||||||
iowrite32(0x00000000, (reg0 + USBOH0));
|
|
||||||
}
|
|
||||||
|
|
||||||
phy_init_end:
|
|
||||||
spin_unlock_irqrestore(&priv->lock, flags);
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static void rcar_usb_phy_shutdown(struct usb_phy *phy)
|
|
||||||
{
|
|
||||||
struct rcar_usb_phy_priv *priv = usb_phy_to_priv(phy);
|
|
||||||
void __iomem *reg0 = priv->reg0;
|
|
||||||
unsigned long flags;
|
|
||||||
|
|
||||||
spin_lock_irqsave(&priv->lock, flags);
|
|
||||||
|
|
||||||
if (priv->counter-- == 1) /* last user */
|
|
||||||
iowrite32(0x00000000, (reg0 + USBPCTRL1));
|
|
||||||
|
|
||||||
spin_unlock_irqrestore(&priv->lock, flags);
|
|
||||||
}
|
|
||||||
|
|
||||||
static int rcar_usb_phy_probe(struct platform_device *pdev)
|
|
||||||
{
|
|
||||||
struct rcar_usb_phy_priv *priv;
|
|
||||||
struct resource *res0, *res1;
|
|
||||||
struct device *dev = &pdev->dev;
|
|
||||||
void __iomem *reg0, *reg1 = NULL;
|
|
||||||
int ret;
|
|
||||||
|
|
||||||
if (!dev_get_platdata(&pdev->dev)) {
|
|
||||||
dev_err(dev, "No platform data\n");
|
|
||||||
return -EINVAL;
|
|
||||||
}
|
|
||||||
|
|
||||||
res0 = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
||||||
reg0 = devm_ioremap_resource(dev, res0);
|
|
||||||
if (IS_ERR(reg0))
|
|
||||||
return PTR_ERR(reg0);
|
|
||||||
|
|
||||||
res1 = platform_get_resource(pdev, IORESOURCE_MEM, 1);
|
|
||||||
reg1 = devm_ioremap_resource(dev, res1);
|
|
||||||
if (IS_ERR(reg1))
|
|
||||||
return PTR_ERR(reg1);
|
|
||||||
|
|
||||||
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
|
|
||||||
if (!priv)
|
|
||||||
return -ENOMEM;
|
|
||||||
|
|
||||||
priv->reg0 = reg0;
|
|
||||||
priv->reg1 = reg1;
|
|
||||||
priv->counter = 0;
|
|
||||||
priv->phy.dev = dev;
|
|
||||||
priv->phy.label = dev_name(dev);
|
|
||||||
priv->phy.init = rcar_usb_phy_init;
|
|
||||||
priv->phy.shutdown = rcar_usb_phy_shutdown;
|
|
||||||
spin_lock_init(&priv->lock);
|
|
||||||
|
|
||||||
ret = usb_add_phy(&priv->phy, USB_PHY_TYPE_USB2);
|
|
||||||
if (ret < 0) {
|
|
||||||
dev_err(dev, "usb phy addition error\n");
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
platform_set_drvdata(pdev, priv);
|
|
||||||
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
static int rcar_usb_phy_remove(struct platform_device *pdev)
|
|
||||||
{
|
|
||||||
struct rcar_usb_phy_priv *priv = platform_get_drvdata(pdev);
|
|
||||||
|
|
||||||
usb_remove_phy(&priv->phy);
|
|
||||||
|
|
||||||
return 0;
|
|
||||||
}
|
|
||||||
|
|
||||||
static struct platform_driver rcar_usb_phy_driver = {
|
|
||||||
.driver = {
|
|
||||||
.name = "rcar_usb_phy",
|
|
||||||
},
|
|
||||||
.probe = rcar_usb_phy_probe,
|
|
||||||
.remove = rcar_usb_phy_remove,
|
|
||||||
};
|
|
||||||
|
|
||||||
module_platform_driver(rcar_usb_phy_driver);
|
|
||||||
|
|
||||||
MODULE_LICENSE("GPL v2");
|
|
||||||
MODULE_DESCRIPTION("Renesas R-Car USB phy");
|
|
||||||
MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
|
|
||||||
|
|
@ -1,28 +0,0 @@
|
||||||
/*
|
|
||||||
* Copyright (C) 2013 Renesas Solutions Corp.
|
|
||||||
* Copyright (C) 2013 Cogent Embedded, Inc.
|
|
||||||
*
|
|
||||||
* This program is free software; you can redistribute it and/or modify
|
|
||||||
* it under the terms of the GNU General Public License version 2 as
|
|
||||||
* published by the Free Software Foundation.
|
|
||||||
*/
|
|
||||||
|
|
||||||
#ifndef __USB_RCAR_PHY_H
|
|
||||||
#define __USB_RCAR_PHY_H
|
|
||||||
|
|
||||||
#include <linux/types.h>
|
|
||||||
|
|
||||||
struct rcar_phy_platform_data {
|
|
||||||
bool ferrite_bead:1; /* (R8A7778 only) */
|
|
||||||
|
|
||||||
bool port1_func:1; /* true: port 1 used by function, false: host */
|
|
||||||
unsigned penc1:1; /* Output of the PENC1 pin in function mode */
|
|
||||||
struct { /* Overcurrent pin control for ports 0..2 */
|
|
||||||
bool select_3_3v:1; /* true: USB_OVCn pin, false: OVCn pin */
|
|
||||||
/* Set to false on port 1 in function mode */
|
|
||||||
bool active_high:1; /* true: active high, false: active low */
|
|
||||||
/* Set to true on port 1 in function mode */
|
|
||||||
} ovc_pin[3]; /* (R8A7778 only has 2 ports) */
|
|
||||||
};
|
|
||||||
|
|
||||||
#endif /* __USB_RCAR_PHY_H */
|
|
||||||
Loading…
Reference in New Issue
Block a user