diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-06 16:48:27 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-03-06 16:48:27 -0800 |
commit | f90d64483ebd394958841f67f8794ab203b319a7 (patch) | |
tree | 3da8638603681adfe9bea7897c03ea27b40ef4f4 /drivers/phy/marvell | |
parent | 67e79a6dc2664a3ef85113440e60f7aaca3c7815 (diff) | |
parent | 1c7cf3d5e1c181caca75012b65252288c18a25f2 (diff) |
Merge tag 'usb-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/PHY updates from Greg KH:
"Here is the big USB/PHY driver pull request for 5.1-rc1.
The usual set of gadget driver updates, phy driver updates, xhci
updates, and typec additions. Also included in here are a lot of small
cleanups and fixes and driver updates where needed.
All of these have been in linux-next for a while with no reported
issues"
* tag 'usb-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (167 commits)
wusb: Remove unnecessary static function ckhdid_printf
usb: core: make default autosuspend delay configurable
usb: core: Fix typo in description of "authorized_default"
usb: chipidea: Refactor USB PHY selection and keep a single PHY
usb: chipidea: Grab the (legacy) USB PHY by phandle first
usb: chipidea: imx: set power polarity
dt-bindings: usb: ci-hdrc-usb2: add property power-active-high
usb: chipidea: imx: remove unused header files
usb: chipidea: tegra: Fix missed ci_hdrc_remove_device()
usb: core: add option of only authorizing internal devices
usb: typec: tps6598x: handle block writes separately with plain-I2C adapters
usb: xhci: Fix for Enabling USB ROLE SWITCH QUIRK on INTEL_SUNRISEPOINT_LP_XHCI
usb: xhci: fix build warning - missing prototype
usb: xhci: dbc: Fixing typo error.
usb: xhci: remove unused member 'parent' in xhci_regset struct
xhci: tegra: Prevent error pointer dereference
USB: serial: option: add Telit ME910 ECM composition
usb: core: Replace hardcoded check with inline function from usb.h
usb: core: skip interfaces disabled in devicetree
usb: typec: mux: remove redundant check on variable match
...
Diffstat (limited to 'drivers/phy/marvell')
-rw-r--r-- | drivers/phy/marvell/Kconfig | 21 | ||||
-rw-r--r-- | drivers/phy/marvell/Makefile | 2 | ||||
-rw-r--r-- | drivers/phy/marvell/phy-armada375-usb2.c | 13 | ||||
-rw-r--r-- | drivers/phy/marvell/phy-mvebu-a3700-comphy.c | 318 | ||||
-rw-r--r-- | drivers/phy/marvell/phy-mvebu-a3700-utmi.c | 278 | ||||
-rw-r--r-- | drivers/phy/marvell/phy-mvebu-cp110-comphy.c | 2 | ||||
-rw-r--r-- | drivers/phy/marvell/phy-mvebu-sata.c | 9 |
7 files changed, 623 insertions, 20 deletions
diff --git a/drivers/phy/marvell/Kconfig b/drivers/phy/marvell/Kconfig index 224ea4e6a46d..9ba872325dad 100644 --- a/drivers/phy/marvell/Kconfig +++ b/drivers/phy/marvell/Kconfig @@ -21,6 +21,27 @@ config PHY_BERLIN_USB help Enable this to support the USB PHY on Marvell Berlin SoCs. +config PHY_MVEBU_A3700_COMPHY + tristate "Marvell A3700 comphy driver" + depends on ARCH_MVEBU || COMPILE_TEST + depends on OF + depends on HAVE_ARM_SMCCC + default y + select GENERIC_PHY + help + This driver allows to control the comphy, a hardware block providing + shared serdes PHYs on Marvell Armada 3700. Its serdes lanes can be + used by various controllers: Ethernet, SATA, USB3, PCIe. + +config PHY_MVEBU_A3700_UTMI + tristate "Marvell A3700 UTMI driver" + depends on ARCH_MVEBU || COMPILE_TEST + depends on OF + default y + select GENERIC_PHY + help + Enable this to support Marvell A3700 UTMI PHY driver. + config PHY_MVEBU_A38X_COMPHY tristate "Marvell Armada 38x comphy driver" depends on ARCH_MVEBU || COMPILE_TEST diff --git a/drivers/phy/marvell/Makefile b/drivers/phy/marvell/Makefile index 59b6c03ef756..434eb9ca6cc3 100644 --- a/drivers/phy/marvell/Makefile +++ b/drivers/phy/marvell/Makefile @@ -2,6 +2,8 @@ obj-$(CONFIG_ARMADA375_USBCLUSTER_PHY) += phy-armada375-usb2.o obj-$(CONFIG_PHY_BERLIN_SATA) += phy-berlin-sata.o obj-$(CONFIG_PHY_BERLIN_USB) += phy-berlin-usb.o +obj-$(CONFIG_PHY_MVEBU_A3700_COMPHY) += phy-mvebu-a3700-comphy.o +obj-$(CONFIG_PHY_MVEBU_A3700_UTMI) += phy-mvebu-a3700-utmi.o obj-$(CONFIG_PHY_MVEBU_A38X_COMPHY) += phy-armada38x-comphy.o obj-$(CONFIG_PHY_MVEBU_CP110_COMPHY) += phy-mvebu-cp110-comphy.o obj-$(CONFIG_PHY_MVEBU_SATA) += phy-mvebu-sata.o diff --git a/drivers/phy/marvell/phy-armada375-usb2.c b/drivers/phy/marvell/phy-armada375-usb2.c index 1a3db288c0a9..fa5dc9462d09 100644 --- a/drivers/phy/marvell/phy-armada375-usb2.c +++ b/drivers/phy/marvell/phy-armada375-usb2.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * USB cluster support for Armada 375 platform. * @@ -5,10 +6,6 @@ * * Gregory CLEMENT <gregory.clement@free-electrons.com> * - * This file is licensed under the terms of the GNU General Public - * License version 2 or later. This program is licensed "as is" - * without any warranty of any kind, whether express or implied. - * * Armada 375 comes with an USB2 host and device controller and an * USB3 controller. The USB cluster control register allows to manage * common features of both USB controllers. @@ -18,7 +15,6 @@ #include <linux/init.h> #include <linux/io.h> #include <linux/kernel.h> -#include <linux/module.h> #include <linux/of_address.h> #include <linux/phy/phy.h> #include <linux/platform_device.h> @@ -142,7 +138,6 @@ static const struct of_device_id of_usb_cluster_table[] = { { .compatible = "marvell,armada-375-usb-cluster", }, { /* end of list */ }, }; -MODULE_DEVICE_TABLE(of, of_usb_cluster_table); static struct platform_driver armada375_usb_phy_driver = { .probe = armada375_usb_phy_probe, @@ -151,8 +146,4 @@ static struct platform_driver armada375_usb_phy_driver = { .name = "armada-375-usb-cluster", } }; -module_platform_driver(armada375_usb_phy_driver); - -MODULE_DESCRIPTION("Armada 375 USB cluster driver"); -MODULE_AUTHOR("Gregory CLEMENT <gregory.clement@free-electrons.com>"); -MODULE_LICENSE("GPL"); +builtin_platform_driver(armada375_usb_phy_driver); diff --git a/drivers/phy/marvell/phy-mvebu-a3700-comphy.c b/drivers/phy/marvell/phy-mvebu-a3700-comphy.c new file mode 100644 index 000000000000..8812a104c233 --- /dev/null +++ b/drivers/phy/marvell/phy-mvebu-a3700-comphy.c @@ -0,0 +1,318 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2018 Marvell + * + * Authors: + * Evan Wang <xswang@marvell.com> + * Miquèl Raynal <miquel.raynal@bootlin.com> + * + * Structure inspired from phy-mvebu-cp110-comphy.c written by Antoine Tenart. + * SMC call initial support done by Grzegorz Jaszczyk. + */ + +#include <linux/arm-smccc.h> +#include <linux/io.h> +#include <linux/iopoll.h> +#include <linux/mfd/syscon.h> +#include <linux/module.h> +#include <linux/phy.h> +#include <linux/phy/phy.h> +#include <linux/platform_device.h> + +#define MVEBU_A3700_COMPHY_LANES 3 +#define MVEBU_A3700_COMPHY_PORTS 2 + +/* COMPHY Fast SMC function identifiers */ +#define COMPHY_SIP_POWER_ON 0x82000001 +#define COMPHY_SIP_POWER_OFF 0x82000002 +#define COMPHY_SIP_PLL_LOCK 0x82000003 + +#define COMPHY_FW_MODE_SATA 0x1 +#define COMPHY_FW_MODE_SGMII 0x2 +#define COMPHY_FW_MODE_HS_SGMII 0x3 +#define COMPHY_FW_MODE_USB3H 0x4 +#define COMPHY_FW_MODE_USB3D 0x5 +#define COMPHY_FW_MODE_PCIE 0x6 +#define COMPHY_FW_MODE_RXAUI 0x7 +#define COMPHY_FW_MODE_XFI 0x8 +#define COMPHY_FW_MODE_SFI 0x9 +#define COMPHY_FW_MODE_USB3 0xa + +#define COMPHY_FW_SPEED_1_25G 0 /* SGMII 1G */ +#define COMPHY_FW_SPEED_2_5G 1 +#define COMPHY_FW_SPEED_3_125G 2 /* SGMII 2.5G */ +#define COMPHY_FW_SPEED_5G 3 +#define COMPHY_FW_SPEED_5_15625G 4 /* XFI 5G */ +#define COMPHY_FW_SPEED_6G 5 +#define COMPHY_FW_SPEED_10_3125G 6 /* XFI 10G */ +#define COMPHY_FW_SPEED_MAX 0x3F + +#define COMPHY_FW_MODE(mode) ((mode) << 12) +#define COMPHY_FW_NET(mode, idx, speed) (COMPHY_FW_MODE(mode) | \ + ((idx) << 8) | \ + ((speed) << 2)) +#define COMPHY_FW_PCIE(mode, idx, speed, width) (COMPHY_FW_NET(mode, idx, speed) | \ + ((width) << 18)) + +struct mvebu_a3700_comphy_conf { + unsigned int lane; + enum phy_mode mode; + int submode; + unsigned int port; + u32 fw_mode; +}; + +#define MVEBU_A3700_COMPHY_CONF(_lane, _mode, _smode, _port, _fw) \ + { \ + .lane = _lane, \ + .mode = _mode, \ + .submode = _smode, \ + .port = _port, \ + .fw_mode = _fw, \ + } + +#define MVEBU_A3700_COMPHY_CONF_GEN(_lane, _mode, _port, _fw) \ + MVEBU_A3700_COMPHY_CONF(_lane, _mode, PHY_INTERFACE_MODE_NA, _port, _fw) + +#define MVEBU_A3700_COMPHY_CONF_ETH(_lane, _smode, _port, _fw) \ + MVEBU_A3700_COMPHY_CONF(_lane, PHY_MODE_ETHERNET, _smode, _port, _fw) + +static const struct mvebu_a3700_comphy_conf mvebu_a3700_comphy_modes[] = { + /* lane 0 */ + MVEBU_A3700_COMPHY_CONF_GEN(0, PHY_MODE_USB_HOST_SS, 0, + COMPHY_FW_MODE_USB3H), + MVEBU_A3700_COMPHY_CONF_ETH(0, PHY_INTERFACE_MODE_SGMII, 1, + COMPHY_FW_MODE_SGMII), + MVEBU_A3700_COMPHY_CONF_ETH(0, PHY_INTERFACE_MODE_2500BASEX, 1, + COMPHY_FW_MODE_HS_SGMII), + /* lane 1 */ + MVEBU_A3700_COMPHY_CONF_GEN(1, PHY_MODE_PCIE, 0, + COMPHY_FW_MODE_PCIE), + MVEBU_A3700_COMPHY_CONF_ETH(1, PHY_INTERFACE_MODE_SGMII, 0, + COMPHY_FW_MODE_SGMII), + MVEBU_A3700_COMPHY_CONF_ETH(1, PHY_INTERFACE_MODE_2500BASEX, 0, + COMPHY_FW_MODE_HS_SGMII), + /* lane 2 */ + MVEBU_A3700_COMPHY_CONF_GEN(2, PHY_MODE_SATA, 0, + COMPHY_FW_MODE_SATA), + MVEBU_A3700_COMPHY_CONF_GEN(2, PHY_MODE_USB_HOST_SS, 0, + COMPHY_FW_MODE_USB3H), +}; + +struct mvebu_a3700_comphy_lane { + struct device *dev; + unsigned int id; + enum phy_mode mode; + int submode; + int port; +}; + +static int mvebu_a3700_comphy_smc(unsigned long function, unsigned long lane, + unsigned long mode) +{ + struct arm_smccc_res res; + + arm_smccc_smc(function, lane, mode, 0, 0, 0, 0, 0, &res); + + return res.a0; +} + +static int mvebu_a3700_comphy_get_fw_mode(int lane, int port, + enum phy_mode mode, + int submode) +{ + int i, n = ARRAY_SIZE(mvebu_a3700_comphy_modes); + + /* Unused PHY mux value is 0x0 */ + if (mode == PHY_MODE_INVALID) + return -EINVAL; + + for (i = 0; i < n; i++) { + if (mvebu_a3700_comphy_modes[i].lane == lane && + mvebu_a3700_comphy_modes[i].port == port && + mvebu_a3700_comphy_modes[i].mode == mode && + mvebu_a3700_comphy_modes[i].submode == submode) + break; + } + + if (i == n) + return -EINVAL; + + return mvebu_a3700_comphy_modes[i].fw_mode; +} + +static int mvebu_a3700_comphy_set_mode(struct phy *phy, enum phy_mode mode, + int submode) +{ + struct mvebu_a3700_comphy_lane *lane = phy_get_drvdata(phy); + int fw_mode; + + if (submode == PHY_INTERFACE_MODE_1000BASEX) + submode = PHY_INTERFACE_MODE_SGMII; + + fw_mode = mvebu_a3700_comphy_get_fw_mode(lane->id, lane->port, mode, + submode); + if (fw_mode < 0) { + dev_err(lane->dev, "invalid COMPHY mode\n"); + return fw_mode; + } + + /* Just remember the mode, ->power_on() will do the real setup */ + lane->mode = mode; + lane->submode = submode; + + return 0; +} + +static int mvebu_a3700_comphy_power_on(struct phy *phy) +{ + struct mvebu_a3700_comphy_lane *lane = phy_get_drvdata(phy); + u32 fw_param; + int fw_mode; + + fw_mode = mvebu_a3700_comphy_get_fw_mode(lane->id, lane->port, + lane->mode, lane->submode); + if (fw_mode < 0) { + dev_err(lane->dev, "invalid COMPHY mode\n"); + return fw_mode; + } + + switch (lane->mode) { + case PHY_MODE_USB_HOST_SS: + dev_dbg(lane->dev, "set lane %d to USB3 host mode\n", lane->id); + fw_param = COMPHY_FW_MODE(fw_mode); + break; + case PHY_MODE_SATA: + dev_dbg(lane->dev, "set lane %d to SATA mode\n", lane->id); + fw_param = COMPHY_FW_MODE(fw_mode); + break; + case PHY_MODE_ETHERNET: + switch (lane->submode) { + case PHY_INTERFACE_MODE_SGMII: + dev_dbg(lane->dev, "set lane %d to SGMII mode\n", + lane->id); + fw_param = COMPHY_FW_NET(fw_mode, lane->port, + COMPHY_FW_SPEED_1_25G); + break; + case PHY_INTERFACE_MODE_2500BASEX: + dev_dbg(lane->dev, "set lane %d to HS SGMII mode\n", + lane->id); + fw_param = COMPHY_FW_NET(fw_mode, lane->port, + COMPHY_FW_SPEED_3_125G); + break; + default: + dev_err(lane->dev, "unsupported PHY submode (%d)\n", + lane->submode); + return -ENOTSUPP; + } + break; + case PHY_MODE_PCIE: + dev_dbg(lane->dev, "set lane %d to PCIe mode\n", lane->id); + fw_param = COMPHY_FW_PCIE(fw_mode, lane->port, + COMPHY_FW_SPEED_5G, + phy->attrs.bus_width); + break; + default: + dev_err(lane->dev, "unsupported PHY mode (%d)\n", lane->mode); + return -ENOTSUPP; + } + + return mvebu_a3700_comphy_smc(COMPHY_SIP_POWER_ON, lane->id, fw_param); +} + +static int mvebu_a3700_comphy_power_off(struct phy *phy) +{ + struct mvebu_a3700_comphy_lane *lane = phy_get_drvdata(phy); + + return mvebu_a3700_comphy_smc(COMPHY_SIP_POWER_OFF, lane->id, 0); +} + +static const struct phy_ops mvebu_a3700_comphy_ops = { + .power_on = mvebu_a3700_comphy_power_on, + .power_off = mvebu_a3700_comphy_power_off, + .set_mode = mvebu_a3700_comphy_set_mode, + .owner = THIS_MODULE, +}; + +static struct phy *mvebu_a3700_comphy_xlate(struct device *dev, + struct of_phandle_args *args) +{ + struct mvebu_a3700_comphy_lane *lane; + struct phy *phy; + + if (WARN_ON(args->args[0] >= MVEBU_A3700_COMPHY_PORTS)) + return ERR_PTR(-EINVAL); + + phy = of_phy_simple_xlate(dev, args); + if (IS_ERR(phy)) + return phy; + + lane = phy_get_drvdata(phy); + lane->port = args->args[0]; + + return phy; +} + +static int mvebu_a3700_comphy_probe(struct platform_device *pdev) +{ + struct phy_provider *provider; + struct device_node *child; + + for_each_available_child_of_node(pdev->dev.of_node, child) { + struct mvebu_a3700_comphy_lane *lane; + struct phy *phy; + int ret; + u32 lane_id; + + ret = of_property_read_u32(child, "reg", &lane_id); + if (ret < 0) { + dev_err(&pdev->dev, "missing 'reg' property (%d)\n", + ret); + continue; + } + + if (lane_id >= MVEBU_A3700_COMPHY_LANES) { + dev_err(&pdev->dev, "invalid 'reg' property\n"); + continue; + } + + lane = devm_kzalloc(&pdev->dev, sizeof(*lane), GFP_KERNEL); + if (!lane) + return -ENOMEM; + + phy = devm_phy_create(&pdev->dev, child, + &mvebu_a3700_comphy_ops); + if (IS_ERR(phy)) + return PTR_ERR(phy); + + lane->dev = &pdev->dev; + lane->mode = PHY_MODE_INVALID; + lane->submode = PHY_INTERFACE_MODE_NA; + lane->id = lane_id; + lane->port = -1; + phy_set_drvdata(phy, lane); + } + + provider = devm_of_phy_provider_register(&pdev->dev, + mvebu_a3700_comphy_xlate); + return PTR_ERR_OR_ZERO(provider); +} + +static const struct of_device_id mvebu_a3700_comphy_of_match_table[] = { + { .compatible = "marvell,comphy-a3700" }, + { }, +}; +MODULE_DEVICE_TABLE(of, mvebu_a3700_comphy_of_match_table); + +static struct platform_driver mvebu_a3700_comphy_driver = { + .probe = mvebu_a3700_comphy_probe, + .driver = { + .name = "mvebu-a3700-comphy", + .of_match_table = mvebu_a3700_comphy_of_match_table, + }, +}; +module_platform_driver(mvebu_a3700_comphy_driver); + +MODULE_AUTHOR("Miquèl Raynal <miquel.raynal@bootlin.com>"); +MODULE_DESCRIPTION("Common PHY driver for A3700"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/phy/marvell/phy-mvebu-a3700-utmi.c b/drivers/phy/marvell/phy-mvebu-a3700-utmi.c new file mode 100644 index 000000000000..94a29dea57af --- /dev/null +++ b/drivers/phy/marvell/phy-mvebu-a3700-utmi.c @@ -0,0 +1,278 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2018 Marvell + * + * Authors: + * Igal Liberman <igall@marvell.com> + * Miquèl Raynal <miquel.raynal@bootlin.com> + * + * Marvell A3700 UTMI PHY driver + */ + +#include <linux/io.h> +#include <linux/iopoll.h> +#include <linux/mfd/syscon.h> +#include <linux/module.h> +#include <linux/of_device.h> +#include <linux/phy/phy.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> + +/* Armada 3700 UTMI PHY registers */ +#define USB2_PHY_PLL_CTRL_REG0 0x0 +#define PLL_REF_DIV_OFF 0 +#define PLL_REF_DIV_MASK GENMASK(6, 0) +#define PLL_REF_DIV_5 5 +#define PLL_FB_DIV_OFF 16 +#define PLL_FB_DIV_MASK GENMASK(24, 16) +#define PLL_FB_DIV_96 96 +#define PLL_SEL_LPFR_OFF 28 +#define PLL_SEL_LPFR_MASK GENMASK(29, 28) +#define PLL_READY BIT(31) +#define USB2_PHY_CAL_CTRL 0x8 +#define PHY_PLLCAL_DONE BIT(31) +#define PHY_IMPCAL_DONE BIT(23) +#define USB2_RX_CHAN_CTRL1 0x18 +#define USB2PHY_SQCAL_DONE BIT(31) +#define USB2_PHY_OTG_CTRL 0x34 +#define PHY_PU_OTG BIT(4) +#define USB2_PHY_CHRGR_DETECT 0x38 +#define PHY_CDP_EN BIT(2) +#define PHY_DCP_EN BIT(3) +#define PHY_PD_EN BIT(4) +#define PHY_PU_CHRG_DTC BIT(5) +#define PHY_CDP_DM_AUTO BIT(7) +#define PHY_ENSWITCH_DP BIT(12) +#define PHY_ENSWITCH_DM BIT(13) + +/* Armada 3700 USB miscellaneous registers */ +#define USB2_PHY_CTRL(usb32) (usb32 ? 0x20 : 0x4) +#define RB_USB2PHY_PU BIT(0) +#define USB2_DP_PULLDN_DEV_MODE BIT(5) +#define USB2_DM_PULLDN_DEV_MODE BIT(6) +#define RB_USB2PHY_SUSPM(usb32) (usb32 ? BIT(14) : BIT(7)) + +#define PLL_LOCK_DELAY_US 10000 +#define PLL_LOCK_TIMEOUT_US 1000000 + +/** + * struct mvebu_a3700_utmi_caps - PHY capabilities + * + * @usb32: Flag indicating which PHY is in use (impacts the register map): + * - The UTMI PHY wired to the USB3/USB2 controller (otg) + * - The UTMI PHY wired to the USB2 controller (host only) + * @ops: PHY operations + */ +struct mvebu_a3700_utmi_caps { + int usb32; + const struct phy_ops *ops; +}; + +/** + * struct mvebu_a3700_utmi - PHY driver data + * + * @regs: PHY registers + * @usb_mis: Regmap with USB miscellaneous registers including PHY ones + * @caps: PHY capabilities + * @phy: PHY handle + */ +struct mvebu_a3700_utmi { + void __iomem *regs; + struct regmap *usb_misc; + const struct mvebu_a3700_utmi_caps *caps; + struct phy *phy; +}; + +static int mvebu_a3700_utmi_phy_power_on(struct phy *phy) +{ + struct mvebu_a3700_utmi *utmi = phy_get_drvdata(phy); + struct device *dev = &phy->dev; + int usb32 = utmi->caps->usb32; + int ret = 0; + u32 reg; + + /* + * Setup PLL. 40MHz clock used to be the default, being 25MHz now. + * See "PLL Settings for Typical REFCLK" table. + */ + reg = readl(utmi->regs + USB2_PHY_PLL_CTRL_REG0); + reg &= ~(PLL_REF_DIV_MASK | PLL_FB_DIV_MASK | PLL_SEL_LPFR_MASK); + reg |= (PLL_REF_DIV_5 << PLL_REF_DIV_OFF) | + (PLL_FB_DIV_96 << PLL_FB_DIV_OFF); + writel(reg, utmi->regs + USB2_PHY_PLL_CTRL_REG0); + + /* Enable PHY pull up and disable USB2 suspend */ + regmap_update_bits(utmi->usb_misc, USB2_PHY_CTRL(usb32), + RB_USB2PHY_SUSPM(usb32) | RB_USB2PHY_PU, + RB_USB2PHY_SUSPM(usb32) | RB_USB2PHY_PU); + + if (usb32) { + /* Power up OTG module */ + reg = readl(utmi->regs + USB2_PHY_OTG_CTRL); + reg |= PHY_PU_OTG; + writel(reg, utmi->regs + USB2_PHY_OTG_CTRL); + + /* Disable PHY charger detection */ + reg = readl(utmi->regs + USB2_PHY_CHRGR_DETECT); + reg &= ~(PHY_CDP_EN | PHY_DCP_EN | PHY_PD_EN | PHY_PU_CHRG_DTC | + PHY_CDP_DM_AUTO | PHY_ENSWITCH_DP | PHY_ENSWITCH_DM); + writel(reg, utmi->regs + USB2_PHY_CHRGR_DETECT); + + /* Disable PHY DP/DM pull-down (used for device mode) */ + regmap_update_bits(utmi->usb_misc, USB2_PHY_CTRL(usb32), + USB2_DP_PULLDN_DEV_MODE | + USB2_DM_PULLDN_DEV_MODE, 0); + } + + /* Wait for PLL calibration */ + ret = readl_poll_timeout(utmi->regs + USB2_PHY_CAL_CTRL, reg, + reg & PHY_PLLCAL_DONE, + PLL_LOCK_DELAY_US, PLL_LOCK_TIMEOUT_US); + if (ret) { + dev_err(dev, "Failed to end USB2 PLL calibration\n"); + return ret; + } + + /* Wait for impedance calibration */ + ret = readl_poll_timeout(utmi->regs + USB2_PHY_CAL_CTRL, reg, + reg & PHY_IMPCAL_DONE, + PLL_LOCK_DELAY_US, PLL_LOCK_TIMEOUT_US); + if (ret) { + dev_err(dev, "Failed to end USB2 impedance calibration\n"); + return ret; + } + + /* Wait for squelch calibration */ + ret = readl_poll_timeout(utmi->regs + USB2_RX_CHAN_CTRL1, reg, + reg & USB2PHY_SQCAL_DONE, + PLL_LOCK_DELAY_US, PLL_LOCK_TIMEOUT_US); + if (ret) { + dev_err(dev, "Failed to end USB2 unknown calibration\n"); + return ret; + } + + /* Wait for PLL to be locked */ + ret = readl_poll_timeout(utmi->regs + USB2_PHY_PLL_CTRL_REG0, reg, + reg & PLL_READY, + PLL_LOCK_DELAY_US, PLL_LOCK_TIMEOUT_US); + if (ret) + dev_err(dev, "Failed to lock USB2 PLL\n"); + + return ret; +} + +static int mvebu_a3700_utmi_phy_power_off(struct phy *phy) +{ + struct mvebu_a3700_utmi *utmi = phy_get_drvdata(phy); + int usb32 = utmi->caps->usb32; + u32 reg; + + /* Disable PHY pull-up and enable USB2 suspend */ + reg = readl(utmi->regs + USB2_PHY_CTRL(usb32)); + reg &= ~(RB_USB2PHY_PU | RB_USB2PHY_SUSPM(usb32)); + writel(reg, utmi->regs + USB2_PHY_CTRL(usb32)); + + /* Power down OTG module */ + if (usb32) { + reg = readl(utmi->regs + USB2_PHY_OTG_CTRL); + reg &= ~PHY_PU_OTG; + writel(reg, utmi->regs + USB2_PHY_OTG_CTRL); + } + + return 0; +} + +static const struct phy_ops mvebu_a3700_utmi_phy_ops = { + .power_on = mvebu_a3700_utmi_phy_power_on, + .power_off = mvebu_a3700_utmi_phy_power_off, + .owner = THIS_MODULE, +}; + +static const struct mvebu_a3700_utmi_caps mvebu_a3700_utmi_otg_phy_caps = { + .usb32 = true, + .ops = &mvebu_a3700_utmi_phy_ops, +}; + +static const struct mvebu_a3700_utmi_caps mvebu_a3700_utmi_host_phy_caps = { + .usb32 = false, + .ops = &mvebu_a3700_utmi_phy_ops, +}; + +static const struct of_device_id mvebu_a3700_utmi_of_match[] = { + { + .compatible = "marvell,a3700-utmi-otg-phy", + .data = &mvebu_a3700_utmi_otg_phy_caps, + }, + { + .compatible = "marvell,a3700-utmi-host-phy", + .data = &mvebu_a3700_utmi_host_phy_caps, + }, + {}, +}; +MODULE_DEVICE_TABLE(of, mvebu_a3700_utmi_of_match); + +static int mvebu_a3700_utmi_phy_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct mvebu_a3700_utmi *utmi; + struct phy_provider *provider; + struct resource *res; + + utmi = devm_kzalloc(dev, sizeof(*utmi), GFP_KERNEL); + if (!utmi) + return -ENOMEM; + + /* Get UTMI memory region */ + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(dev, "Missing UTMI PHY memory resource\n"); + return -ENODEV; + } + + utmi->regs = devm_ioremap_resource(dev, res); + if (IS_ERR(utmi->regs)) + return PTR_ERR(utmi->regs); + + /* Get miscellaneous Host/PHY region */ + utmi->usb_misc = syscon_regmap_lookup_by_phandle(dev->of_node, + "marvell,usb-misc-reg"); + if (IS_ERR(utmi->usb_misc)) { + dev_err(dev, + "Missing USB misc purpose system controller\n"); + return PTR_ERR(utmi->usb_misc); + } + + /* Retrieve PHY capabilities */ + utmi->caps = of_device_get_match_data(dev); + + /* Instantiate the PHY */ + utmi->phy = devm_phy_create(dev, NULL, utmi->caps->ops); + if (IS_ERR(utmi->phy)) { + dev_err(dev, "Failed to create the UTMI PHY\n"); + return PTR_ERR(utmi->phy); + } + + phy_set_drvdata(utmi->phy, utmi); + + /* Ensure the PHY is powered off */ + utmi->caps->ops->power_off(utmi->phy); + + provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); + + return PTR_ERR_OR_ZERO(provider); +} + +static struct platform_driver mvebu_a3700_utmi_driver = { + .probe = mvebu_a3700_utmi_phy_probe, + .driver = { + .name = "mvebu-a3700-utmi-phy", + .owner = THIS_MODULE, + .of_match_table = mvebu_a3700_utmi_of_match, + }, +}; +module_platform_driver(mvebu_a3700_utmi_driver); + +MODULE_AUTHOR("Igal Liberman <igall@marvell.com>"); +MODULE_AUTHOR("Miquel Raynal <miquel.raynal@bootlin.com>"); +MODULE_DESCRIPTION("Marvell EBU A3700 UTMI PHY driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/phy/marvell/phy-mvebu-cp110-comphy.c b/drivers/phy/marvell/phy-mvebu-cp110-comphy.c index 187cccde53b5..d98e0451f6a1 100644 --- a/drivers/phy/marvell/phy-mvebu-cp110-comphy.c +++ b/drivers/phy/marvell/phy-mvebu-cp110-comphy.c @@ -580,8 +580,6 @@ static struct phy *mvebu_comphy_xlate(struct device *dev, return phy; lane = phy_get_drvdata(phy); - if (lane->port >= 0) - return ERR_PTR(-EBUSY); lane->port = args->args[0]; return phy; diff --git a/drivers/phy/marvell/phy-mvebu-sata.c b/drivers/phy/marvell/phy-mvebu-sata.c index 768ce92e81ce..369fece2be7a 100644 --- a/drivers/phy/marvell/phy-mvebu-sata.c +++ b/drivers/phy/marvell/phy-mvebu-sata.c @@ -10,7 +10,7 @@ */ #include <linux/kernel.h> -#include <linux/module.h> +#include <linux/init.h> #include <linux/clk.h> #include <linux/phy/phy.h> #include <linux/io.h> @@ -122,7 +122,6 @@ static const struct of_device_id phy_mvebu_sata_of_match[] = { { .compatible = "marvell,mvebu-sata-phy" }, { }, }; -MODULE_DEVICE_TABLE(of, phy_mvebu_sata_of_match); static struct platform_driver phy_mvebu_sata_driver = { .probe = phy_mvebu_sata_probe, @@ -131,8 +130,4 @@ static struct platform_driver phy_mvebu_sata_driver = { .of_match_table = phy_mvebu_sata_of_match, } }; -module_platform_driver(phy_mvebu_sata_driver); - -MODULE_AUTHOR("Andrew Lunn <andrew@lunn.ch>"); -MODULE_DESCRIPTION("Marvell MVEBU SATA PHY driver"); -MODULE_LICENSE("GPL v2"); +builtin_platform_driver(phy_mvebu_sata_driver); |