Message ID | 1447832123-27245-1-git-send-email-zhangfei.gao@linaro.org (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
On Wed, Nov 18, 2015 at 03:35:23PM +0800, Zhangfei Gao wrote: > Support hi6220 use phy for HiKey board > > Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org> > --- > .../devicetree/bindings/phy/phy-hi6220-usb.txt | 16 ++ For the binding: Acked-by: Rob Herring <robh@kernel.org> > drivers/phy/Kconfig | 9 ++ > drivers/phy/Makefile | 1 + > drivers/phy/phy-hi6220-usb.c | 168 +++++++++++++++++++++ > 4 files changed, 194 insertions(+) > create mode 100644 Documentation/devicetree/bindings/phy/phy-hi6220-usb.txt > create mode 100644 drivers/phy/phy-hi6220-usb.c > > diff --git a/Documentation/devicetree/bindings/phy/phy-hi6220-usb.txt b/Documentation/devicetree/bindings/phy/phy-hi6220-usb.txt > new file mode 100644 > index 0000000..f17a56e > --- /dev/null > +++ b/Documentation/devicetree/bindings/phy/phy-hi6220-usb.txt > @@ -0,0 +1,16 @@ > +Hisilicon hi6220 usb PHY > +----------------------- > + > +Required properties: > +- compatible: should be "hisilicon,hi6220-usb-phy" > +- #phy-cells: must be 0 > +- hisilicon,peripheral-syscon: phandle of syscon used to control phy. > +Refer to phy/phy-bindings.txt for the generic PHY binding properties > + > +Example: > + usb_phy: usbphy { > + compatible = "hisilicon,hi6220-usb-phy"; > + #phy-cells = <0>; > + phy-supply = <&fixed_5v_hub>; > + hisilicon,peripheral-syscon = <&sys_ctrl>; > + }; > diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig > index 47da573..c91a612 100644 > --- a/drivers/phy/Kconfig > +++ b/drivers/phy/Kconfig > @@ -206,6 +206,15 @@ config PHY_HIX5HD2_SATA > help > Support for SATA PHY on Hisilicon hix5hd2 Soc. > > +config PHY_HI6220_USB > + tristate "hi6220 USB PHY support" > + select GENERIC_PHY > + select MFD_SYSCON > + help > + Enable this to support the HISILICON HI6220 USB PHY. > + > + To compile this driver as a module, choose M here. > + > config PHY_SUN4I_USB > tristate "Allwinner sunxi SoC USB PHY driver" > depends on ARCH_SUNXI && HAS_IOMEM && OF > diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile > index a5b18c1..0c5ccc9 100644 > --- a/drivers/phy/Makefile > +++ b/drivers/phy/Makefile > @@ -23,6 +23,7 @@ obj-$(CONFIG_TI_PIPE3) += phy-ti-pipe3.o > obj-$(CONFIG_TWL4030_USB) += phy-twl4030-usb.o > obj-$(CONFIG_PHY_EXYNOS5250_SATA) += phy-exynos5250-sata.o > obj-$(CONFIG_PHY_HIX5HD2_SATA) += phy-hix5hd2-sata.o > +obj-$(CONFIG_PHY_HI6220_USB) += phy-hi6220-usb.o > obj-$(CONFIG_PHY_SUN4I_USB) += phy-sun4i-usb.o > obj-$(CONFIG_PHY_SUN9I_USB) += phy-sun9i-usb.o > obj-$(CONFIG_PHY_SAMSUNG_USB2) += phy-exynos-usb2.o > diff --git a/drivers/phy/phy-hi6220-usb.c b/drivers/phy/phy-hi6220-usb.c > new file mode 100644 > index 0000000..b2141cb > --- /dev/null > +++ b/drivers/phy/phy-hi6220-usb.c > @@ -0,0 +1,168 @@ > +/* > + * Copyright (c) 2015 Linaro Ltd. > + * Copyright (c) 2015 Hisilicon Limited. > + * > + * 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; either version 2 of the License, or > + * (at your option) any later version. > + */ > + > +#include <linux/mfd/syscon.h> > +#include <linux/module.h> > +#include <linux/platform_device.h> > +#include <linux/phy/phy.h> > +#include <linux/regmap.h> > + > +#define SC_PERIPH_CTRL4 0x00c > + > +#define CTRL4_PICO_SIDDQ BIT(6) > +#define CTRL4_PICO_OGDISABLE BIT(8) > +#define CTRL4_PICO_VBUSVLDEXT BIT(10) > +#define CTRL4_PICO_VBUSVLDEXTSEL BIT(11) > +#define CTRL4_OTG_PHY_SEL BIT(21) > + > +#define SC_PERIPH_CTRL5 0x010 > + > +#define CTRL5_USBOTG_RES_SEL BIT(3) > +#define CTRL5_PICOPHY_ACAENB BIT(4) > +#define CTRL5_PICOPHY_BC_MODE BIT(5) > +#define CTRL5_PICOPHY_CHRGSEL BIT(6) > +#define CTRL5_PICOPHY_VDATSRCEND BIT(7) > +#define CTRL5_PICOPHY_VDATDETENB BIT(8) > +#define CTRL5_PICOPHY_DCDENB BIT(9) > +#define CTRL5_PICOPHY_IDDIG BIT(10) > + > +#define SC_PERIPH_CTRL8 0x018 > +#define SC_PERIPH_RSTEN0 0x300 > +#define SC_PERIPH_RSTDIS0 0x304 > + > +#define RST0_USBOTG_BUS BIT(4) > +#define RST0_POR_PICOPHY BIT(5) > +#define RST0_USBOTG BIT(6) > +#define RST0_USBOTG_32K BIT(7) > + > +#define EYE_PATTERN_PARA 0x7053348c > + > +struct hi6220_priv { > + struct regmap *reg; > + struct device *dev; > +}; > + > +static void hi6220_phy_init(struct hi6220_priv *priv) > +{ > + struct regmap *reg = priv->reg; > + u32 val, mask; > + > + val = RST0_USBOTG_BUS | RST0_POR_PICOPHY | > + RST0_USBOTG | RST0_USBOTG_32K; > + mask = val; > + regmap_update_bits(reg, SC_PERIPH_RSTEN0, mask, val); > + regmap_update_bits(reg, SC_PERIPH_RSTDIS0, mask, val); > +} > + > +static int hi6220_phy_setup(struct hi6220_priv *priv, bool on) > +{ > + struct regmap *reg = priv->reg; > + u32 val, mask; > + int ret; > + > + if (on) { > + val = CTRL5_USBOTG_RES_SEL | CTRL5_PICOPHY_ACAENB; > + mask = val | CTRL5_PICOPHY_BC_MODE; > + ret = regmap_update_bits(reg, SC_PERIPH_CTRL5, mask, val); > + if (ret) > + goto out; > + > + val = CTRL4_PICO_VBUSVLDEXT | CTRL4_PICO_VBUSVLDEXTSEL | > + CTRL4_OTG_PHY_SEL; > + mask = val | CTRL4_PICO_SIDDQ | CTRL4_PICO_OGDISABLE; > + ret = regmap_update_bits(reg, SC_PERIPH_CTRL4, mask, val); > + if (ret) > + goto out; > + > + ret = regmap_write(reg, SC_PERIPH_CTRL8, EYE_PATTERN_PARA); > + if (ret) > + goto out; > + } else { > + val = CTRL4_PICO_SIDDQ; > + mask = val; > + ret = regmap_update_bits(reg, SC_PERIPH_CTRL4, mask, val); > + if (ret) > + goto out; > + } > + > + return 0; > +out: > + dev_err(priv->dev, "failed to setup phy ret: %d\n", ret); > + return ret; > +} > + > +static int hi6220_phy_start(struct phy *phy) > +{ > + struct hi6220_priv *priv = phy_get_drvdata(phy); > + > + return hi6220_phy_setup(priv, true); > +} > + > +static int hi6220_phy_exit(struct phy *phy) > +{ > + struct hi6220_priv *priv = phy_get_drvdata(phy); > + > + return hi6220_phy_setup(priv, false); > +} > + > +static struct phy_ops hi6220_phy_ops = { > + .init = hi6220_phy_start, > + .exit = hi6220_phy_exit, > + .owner = THIS_MODULE, > +}; > + > +static int hi6220_phy_probe(struct platform_device *pdev) > +{ > + struct phy_provider *phy_provider; > + struct device *dev = &pdev->dev; > + struct phy *phy; > + struct hi6220_priv *priv; > + > + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); > + if (!priv) > + return -ENOMEM; > + > + priv->dev = dev; > + priv->reg = syscon_regmap_lookup_by_phandle(dev->of_node, > + "hisilicon,peripheral-syscon"); > + if (IS_ERR(priv->reg)) { > + dev_err(dev, "no hisilicon,peripheral-syscon\n"); > + return PTR_ERR(priv->reg); > + } > + > + hi6220_phy_init(priv); > + > + phy = devm_phy_create(dev, NULL, &hi6220_phy_ops); > + if (IS_ERR(phy)) > + return PTR_ERR(phy); > + > + phy_set_drvdata(phy, priv); > + phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); > + return PTR_ERR_OR_ZERO(phy_provider); > +} > + > +static const struct of_device_id hi6220_phy_of_match[] = { > + {.compatible = "hisilicon,hi6220-usb-phy",}, > + { }, > +}; > +MODULE_DEVICE_TABLE(of, hi6220_phy_of_match); > + > +static struct platform_driver hi6220_phy_driver = { > + .probe = hi6220_phy_probe, > + .driver = { > + .name = "hi6220-usb-phy", > + .of_match_table = hi6220_phy_of_match, > + } > +}; > +module_platform_driver(hi6220_phy_driver); > + > +MODULE_DESCRIPTION("HISILICON HI6220 USB PHY driver"); > +MODULE_ALIAS("platform:hi6220-usb-phy"); > +MODULE_LICENSE("GPL"); > -- > 1.9.1 > > -- > To unsubscribe from this list: send the line "unsubscribe devicetree" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/devicetree/bindings/phy/phy-hi6220-usb.txt b/Documentation/devicetree/bindings/phy/phy-hi6220-usb.txt new file mode 100644 index 0000000..f17a56e --- /dev/null +++ b/Documentation/devicetree/bindings/phy/phy-hi6220-usb.txt @@ -0,0 +1,16 @@ +Hisilicon hi6220 usb PHY +----------------------- + +Required properties: +- compatible: should be "hisilicon,hi6220-usb-phy" +- #phy-cells: must be 0 +- hisilicon,peripheral-syscon: phandle of syscon used to control phy. +Refer to phy/phy-bindings.txt for the generic PHY binding properties + +Example: + usb_phy: usbphy { + compatible = "hisilicon,hi6220-usb-phy"; + #phy-cells = <0>; + phy-supply = <&fixed_5v_hub>; + hisilicon,peripheral-syscon = <&sys_ctrl>; + }; diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig index 47da573..c91a612 100644 --- a/drivers/phy/Kconfig +++ b/drivers/phy/Kconfig @@ -206,6 +206,15 @@ config PHY_HIX5HD2_SATA help Support for SATA PHY on Hisilicon hix5hd2 Soc. +config PHY_HI6220_USB + tristate "hi6220 USB PHY support" + select GENERIC_PHY + select MFD_SYSCON + help + Enable this to support the HISILICON HI6220 USB PHY. + + To compile this driver as a module, choose M here. + config PHY_SUN4I_USB tristate "Allwinner sunxi SoC USB PHY driver" depends on ARCH_SUNXI && HAS_IOMEM && OF diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile index a5b18c1..0c5ccc9 100644 --- a/drivers/phy/Makefile +++ b/drivers/phy/Makefile @@ -23,6 +23,7 @@ obj-$(CONFIG_TI_PIPE3) += phy-ti-pipe3.o obj-$(CONFIG_TWL4030_USB) += phy-twl4030-usb.o obj-$(CONFIG_PHY_EXYNOS5250_SATA) += phy-exynos5250-sata.o obj-$(CONFIG_PHY_HIX5HD2_SATA) += phy-hix5hd2-sata.o +obj-$(CONFIG_PHY_HI6220_USB) += phy-hi6220-usb.o obj-$(CONFIG_PHY_SUN4I_USB) += phy-sun4i-usb.o obj-$(CONFIG_PHY_SUN9I_USB) += phy-sun9i-usb.o obj-$(CONFIG_PHY_SAMSUNG_USB2) += phy-exynos-usb2.o diff --git a/drivers/phy/phy-hi6220-usb.c b/drivers/phy/phy-hi6220-usb.c new file mode 100644 index 0000000..b2141cb --- /dev/null +++ b/drivers/phy/phy-hi6220-usb.c @@ -0,0 +1,168 @@ +/* + * Copyright (c) 2015 Linaro Ltd. + * Copyright (c) 2015 Hisilicon Limited. + * + * 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; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/mfd/syscon.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/phy/phy.h> +#include <linux/regmap.h> + +#define SC_PERIPH_CTRL4 0x00c + +#define CTRL4_PICO_SIDDQ BIT(6) +#define CTRL4_PICO_OGDISABLE BIT(8) +#define CTRL4_PICO_VBUSVLDEXT BIT(10) +#define CTRL4_PICO_VBUSVLDEXTSEL BIT(11) +#define CTRL4_OTG_PHY_SEL BIT(21) + +#define SC_PERIPH_CTRL5 0x010 + +#define CTRL5_USBOTG_RES_SEL BIT(3) +#define CTRL5_PICOPHY_ACAENB BIT(4) +#define CTRL5_PICOPHY_BC_MODE BIT(5) +#define CTRL5_PICOPHY_CHRGSEL BIT(6) +#define CTRL5_PICOPHY_VDATSRCEND BIT(7) +#define CTRL5_PICOPHY_VDATDETENB BIT(8) +#define CTRL5_PICOPHY_DCDENB BIT(9) +#define CTRL5_PICOPHY_IDDIG BIT(10) + +#define SC_PERIPH_CTRL8 0x018 +#define SC_PERIPH_RSTEN0 0x300 +#define SC_PERIPH_RSTDIS0 0x304 + +#define RST0_USBOTG_BUS BIT(4) +#define RST0_POR_PICOPHY BIT(5) +#define RST0_USBOTG BIT(6) +#define RST0_USBOTG_32K BIT(7) + +#define EYE_PATTERN_PARA 0x7053348c + +struct hi6220_priv { + struct regmap *reg; + struct device *dev; +}; + +static void hi6220_phy_init(struct hi6220_priv *priv) +{ + struct regmap *reg = priv->reg; + u32 val, mask; + + val = RST0_USBOTG_BUS | RST0_POR_PICOPHY | + RST0_USBOTG | RST0_USBOTG_32K; + mask = val; + regmap_update_bits(reg, SC_PERIPH_RSTEN0, mask, val); + regmap_update_bits(reg, SC_PERIPH_RSTDIS0, mask, val); +} + +static int hi6220_phy_setup(struct hi6220_priv *priv, bool on) +{ + struct regmap *reg = priv->reg; + u32 val, mask; + int ret; + + if (on) { + val = CTRL5_USBOTG_RES_SEL | CTRL5_PICOPHY_ACAENB; + mask = val | CTRL5_PICOPHY_BC_MODE; + ret = regmap_update_bits(reg, SC_PERIPH_CTRL5, mask, val); + if (ret) + goto out; + + val = CTRL4_PICO_VBUSVLDEXT | CTRL4_PICO_VBUSVLDEXTSEL | + CTRL4_OTG_PHY_SEL; + mask = val | CTRL4_PICO_SIDDQ | CTRL4_PICO_OGDISABLE; + ret = regmap_update_bits(reg, SC_PERIPH_CTRL4, mask, val); + if (ret) + goto out; + + ret = regmap_write(reg, SC_PERIPH_CTRL8, EYE_PATTERN_PARA); + if (ret) + goto out; + } else { + val = CTRL4_PICO_SIDDQ; + mask = val; + ret = regmap_update_bits(reg, SC_PERIPH_CTRL4, mask, val); + if (ret) + goto out; + } + + return 0; +out: + dev_err(priv->dev, "failed to setup phy ret: %d\n", ret); + return ret; +} + +static int hi6220_phy_start(struct phy *phy) +{ + struct hi6220_priv *priv = phy_get_drvdata(phy); + + return hi6220_phy_setup(priv, true); +} + +static int hi6220_phy_exit(struct phy *phy) +{ + struct hi6220_priv *priv = phy_get_drvdata(phy); + + return hi6220_phy_setup(priv, false); +} + +static struct phy_ops hi6220_phy_ops = { + .init = hi6220_phy_start, + .exit = hi6220_phy_exit, + .owner = THIS_MODULE, +}; + +static int hi6220_phy_probe(struct platform_device *pdev) +{ + struct phy_provider *phy_provider; + struct device *dev = &pdev->dev; + struct phy *phy; + struct hi6220_priv *priv; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->dev = dev; + priv->reg = syscon_regmap_lookup_by_phandle(dev->of_node, + "hisilicon,peripheral-syscon"); + if (IS_ERR(priv->reg)) { + dev_err(dev, "no hisilicon,peripheral-syscon\n"); + return PTR_ERR(priv->reg); + } + + hi6220_phy_init(priv); + + phy = devm_phy_create(dev, NULL, &hi6220_phy_ops); + if (IS_ERR(phy)) + return PTR_ERR(phy); + + phy_set_drvdata(phy, priv); + phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); + return PTR_ERR_OR_ZERO(phy_provider); +} + +static const struct of_device_id hi6220_phy_of_match[] = { + {.compatible = "hisilicon,hi6220-usb-phy",}, + { }, +}; +MODULE_DEVICE_TABLE(of, hi6220_phy_of_match); + +static struct platform_driver hi6220_phy_driver = { + .probe = hi6220_phy_probe, + .driver = { + .name = "hi6220-usb-phy", + .of_match_table = hi6220_phy_of_match, + } +}; +module_platform_driver(hi6220_phy_driver); + +MODULE_DESCRIPTION("HISILICON HI6220 USB PHY driver"); +MODULE_ALIAS("platform:hi6220-usb-phy"); +MODULE_LICENSE("GPL");
Support hi6220 use phy for HiKey board Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org> --- .../devicetree/bindings/phy/phy-hi6220-usb.txt | 16 ++ drivers/phy/Kconfig | 9 ++ drivers/phy/Makefile | 1 + drivers/phy/phy-hi6220-usb.c | 168 +++++++++++++++++++++ 4 files changed, 194 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/phy-hi6220-usb.txt create mode 100644 drivers/phy/phy-hi6220-usb.c