Commit 22db87ba authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman

Merge tag 'phy-for-4.11-rc' of...

Merge tag 'phy-for-4.11-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-linus

Kishon writes:

phy: for 4.11-rc

 *) Revert USB3 PHY support for Broadcom NSP SoC
 *) Fix compiler error on qcom-usb-hs when depends on EXTCON
    is not added
 *) Fix error handling in phy-exynos-pcie
Signed-off-by: default avatarKishon Vijay Abraham I <kishon@ti.com>
parents 7b2db29f 1a09b6a7
Broadcom USB3 phy binding for northstar plus SoC
The USB3 phy is internal to the SoC and is accessed using mdio interface.
Required mdio bus properties:
- reg: Should be 0x0 for SoC internal USB3 phy
- #address-cells: must be 1
- #size-cells: must be 0
Required USB3 PHY properties:
- compatible: should be "brcm,nsp-usb3-phy"
- reg: USB3 Phy address on SoC internal MDIO bus and it should be 0x10.
- usb3-ctrl-syscon: handler of syscon node defining physical address
of usb3 control register.
- #phy-cells: must be 0
Required usb3 control properties:
- compatible: should be "brcm,nsp-usb3-ctrl"
- reg: offset and length of the control registers
Example:
mdio@0 {
reg = <0x0>;
#address-cells = <1>;
#size-cells = <0>;
usb3_phy: usb-phy@10 {
compatible = "brcm,nsp-usb3-phy";
reg = <0x10>;
usb3-ctrl-syscon = <&usb3_ctrl>;
#phy-cells = <0>;
status = "disabled";
};
};
usb3_ctrl: syscon@104408 {
compatible = "brcm,nsp-usb3-ctrl", "syscon";
reg = <0x104408 0x3fc>;
};
......@@ -449,6 +449,7 @@ config PHY_QCOM_UFS
config PHY_QCOM_USB_HS
tristate "Qualcomm USB HS PHY module"
depends on USB_ULPI_BUS
depends on EXTCON || !EXTCON # if EXTCON=m, this cannot be built-in
select GENERIC_PHY
help
Support for the USB high-speed ULPI compliant phy on Qualcomm
......@@ -510,12 +511,4 @@ config PHY_MESON8B_USB2
and GXBB SoCs.
If unsure, say N.
config PHY_NSP_USB3
tristate "Broadcom NorthStar plus USB3 PHY driver"
depends on OF && (ARCH_BCM_NSP || COMPILE_TEST)
select GENERIC_PHY
default ARCH_BCM_NSP
help
Enable this to support the Broadcom Northstar plus USB3 PHY.
If unsure, say N.
endmenu
......@@ -62,4 +62,3 @@ obj-$(CONFIG_PHY_CYGNUS_PCIE) += phy-bcm-cygnus-pcie.o
obj-$(CONFIG_ARCH_TEGRA) += tegra/
obj-$(CONFIG_PHY_NS2_PCIE) += phy-bcm-ns2-pcie.o
obj-$(CONFIG_PHY_MESON8B_USB2) += phy-meson8b-usb2.o
obj-$(CONFIG_PHY_NSP_USB3) += phy-bcm-nsp-usb3.o
/*
* Copyright (C) 2016 Broadcom
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation version 2.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/mfd/syscon.h>
#include <linux/mdio.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/phy/phy.h>
#include <linux/regmap.h>
#define NSP_USB3_RST_CTRL_OFFSET 0x3f8
/* mdio reg access */
#define NSP_USB3_PHY_BASE_ADDR_REG 0x1f
#define NSP_USB3_PHY_PLL30_BLOCK 0x8000
#define NSP_USB3_PLL_CONTROL 0x01
#define NSP_USB3_PLLA_CONTROL0 0x0a
#define NSP_USB3_PLLA_CONTROL1 0x0b
#define NSP_USB3_PHY_TX_PMD_BLOCK 0x8040
#define NSP_USB3_TX_PMD_CONTROL1 0x01
#define NSP_USB3_PHY_PIPE_BLOCK 0x8060
#define NSP_USB3_LFPS_CMP 0x02
#define NSP_USB3_LFPS_DEGLITCH 0x03
struct nsp_usb3_phy {
struct regmap *usb3_ctrl;
struct phy *phy;
struct mdio_device *mdiodev;
};
static int nsp_usb3_phy_init(struct phy *phy)
{
struct nsp_usb3_phy *iphy = phy_get_drvdata(phy);
struct mii_bus *bus = iphy->mdiodev->bus;
int addr = iphy->mdiodev->addr;
u32 data;
int rc;
rc = regmap_read(iphy->usb3_ctrl, 0, &data);
if (rc)
return rc;
data |= 1;
rc = regmap_write(iphy->usb3_ctrl, 0, data);
if (rc)
return rc;
rc = regmap_write(iphy->usb3_ctrl, NSP_USB3_RST_CTRL_OFFSET, 1);
if (rc)
return rc;
rc = mdiobus_write(bus, addr, NSP_USB3_PHY_BASE_ADDR_REG,
NSP_USB3_PHY_PLL30_BLOCK);
if (rc)
return rc;
rc = mdiobus_write(bus, addr, NSP_USB3_PLL_CONTROL, 0x1000);
if (rc)
return rc;
rc = mdiobus_write(bus, addr, NSP_USB3_PLLA_CONTROL0, 0x6400);
if (rc)
return rc;
rc = mdiobus_write(bus, addr, NSP_USB3_PLLA_CONTROL1, 0xc000);
if (rc)
return rc;
rc = mdiobus_write(bus, addr, NSP_USB3_PLLA_CONTROL1, 0x8000);
if (rc)
return rc;
rc = regmap_write(iphy->usb3_ctrl, NSP_USB3_RST_CTRL_OFFSET, 0);
if (rc)
return rc;
rc = mdiobus_write(bus, addr, NSP_USB3_PLL_CONTROL, 0x9000);
if (rc)
return rc;
rc = mdiobus_write(bus, addr, NSP_USB3_PHY_BASE_ADDR_REG,
NSP_USB3_PHY_PIPE_BLOCK);
if (rc)
return rc;
rc = mdiobus_write(bus, addr, NSP_USB3_LFPS_CMP, 0xf30d);
if (rc)
return rc;
rc = mdiobus_write(bus, addr, NSP_USB3_LFPS_DEGLITCH, 0x6302);
if (rc)
return rc;
rc = mdiobus_write(bus, addr, NSP_USB3_PHY_BASE_ADDR_REG,
NSP_USB3_PHY_TX_PMD_BLOCK);
if (rc)
return rc;
rc = mdiobus_write(bus, addr, NSP_USB3_TX_PMD_CONTROL1, 0x1003);
return rc;
}
static struct phy_ops nsp_usb3_phy_ops = {
.init = nsp_usb3_phy_init,
.owner = THIS_MODULE,
};
static int nsp_usb3_phy_probe(struct mdio_device *mdiodev)
{
struct device *dev = &mdiodev->dev;
struct phy_provider *provider;
struct nsp_usb3_phy *iphy;
iphy = devm_kzalloc(dev, sizeof(*iphy), GFP_KERNEL);
if (!iphy)
return -ENOMEM;
iphy->mdiodev = mdiodev;
iphy->usb3_ctrl = syscon_regmap_lookup_by_phandle(dev->of_node,
"usb3-ctrl-syscon");
if (IS_ERR(iphy->usb3_ctrl))
return PTR_ERR(iphy->usb3_ctrl);
iphy->phy = devm_phy_create(dev, dev->of_node, &nsp_usb3_phy_ops);
if (IS_ERR(iphy->phy)) {
dev_err(dev, "failed to create PHY\n");
return PTR_ERR(iphy->phy);
}
phy_set_drvdata(iphy->phy, iphy);
provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
if (IS_ERR(provider)) {
dev_err(dev, "could not register PHY provider\n");
return PTR_ERR(provider);
}
return 0;
}
static const struct of_device_id nsp_usb3_phy_of_match[] = {
{.compatible = "brcm,nsp-usb3-phy",},
{ /* sentinel */ }
};
static struct mdio_driver nsp_usb3_phy_driver = {
.mdiodrv = {
.driver = {
.name = "nsp-usb3-phy",
.of_match_table = nsp_usb3_phy_of_match,
},
},
.probe = nsp_usb3_phy_probe,
};
mdio_module_driver(nsp_usb3_phy_driver);
MODULE_DESCRIPTION("Broadcom NSP USB3 PHY driver");
MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Yendapally Reddy Dhananjaya Reddy <yendapally.reddy@broadcom.com");
......@@ -254,8 +254,8 @@ static int exynos_pcie_phy_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
exynos_phy->blk_base = devm_ioremap_resource(dev, res);
if (IS_ERR(exynos_phy->phy_base))
return PTR_ERR(exynos_phy->phy_base);
if (IS_ERR(exynos_phy->blk_base))
return PTR_ERR(exynos_phy->blk_base);
exynos_phy->drv_data = drv_data;
......
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