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phy: for 4.10
Merge contains:
*) Add new usb2 phy driver for Meson8b and GXBB
*) Remove phy drivers added for miphy365 and STiH415/6 (as support for
these SoCs are removed from the kernel)
*) Add a sysfs entry to facilitate usb role swap in rcar SoC
*) Add support for otg port in rk3399
*) misc fixes in various phy drivers and cleanups
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
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Merge tag 'phy-for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-next
Kishon writes:
phy: for 4.10
Merge contains:
*) Add new usb2 phy driver for Meson8b and GXBB
*) Remove phy drivers added for miphy365 and STiH415/6 (as support for
these SoCs are removed from the kernel)
*) Add a sysfs entry to facilitate usb role swap in rcar SoC
*) Add support for otg port in rk3399
*) misc fixes in various phy drivers and cleanups
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
This commit is contained in:
Greg Kroah-Hartman
commit
cdefb95bfc
15
Documentation/ABI/testing/sysfs-platform-phy-rcar-gen3-usb2
Normal file
15
Documentation/ABI/testing/sysfs-platform-phy-rcar-gen3-usb2
Normal file
@ -0,0 +1,15 @@
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What: /sys/devices/platform/<phy-name>/role
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Date: October 2016
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KernelVersion: 4.10
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Contact: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
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Description:
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This file can be read and write.
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The file can show/change the phy mode for role swap of usb.
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Write the following strings to change the mode:
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"host" - switching mode from peripheral to host.
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"peripheral" - switching mode from host to peripheral.
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Read the file, then it shows the following strings:
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"host" - The mode is host now.
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"peripheral" - The mode is peripheral now.
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@ -1,4 +1,4 @@
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* Amlogic USB2 PHY
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* Amlogic Meson8b and GXBB USB2 PHY
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Required properties:
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- compatible: Depending on the platform this should be one of:
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@ -16,10 +16,10 @@ Optional properties:
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Example:
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usb0_phy: usb_phy@0 {
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usb0_phy: usb-phy@c0000000 {
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compatible = "amlogic,meson-gxbb-usb2-phy";
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#phy-cells = <0>;
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reg = <0x0 0x0 0x0 0x20>;
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reg = <0x0 0xc0000000 0x0 0x20>;
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resets = <&reset RESET_USB_OTG>;
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clocks = <&clkc CLKID_USB>, <&clkc CLKID_USB0>;
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clock-names = "usb_general", "usb";
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@ -129,16 +129,6 @@ config PHY_MIPHY28LP
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Enable this to support the miphy transceiver (for SATA/PCIE/USB3)
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that is part of STMicroelectronics STiH407 SoC.
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config PHY_MIPHY365X
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tristate "STMicroelectronics MIPHY365X PHY driver for STiH41x series"
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depends on ARCH_STI
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depends on HAS_IOMEM
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depends on OF
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select GENERIC_PHY
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help
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Enable this to support the miphy transceiver (for SATA/PCIE)
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that is part of STMicroelectronics STiH41x SoC series.
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config PHY_RCAR_GEN2
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tristate "Renesas R-Car generation 2 USB PHY driver"
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depends on ARCH_RENESAS
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@ -373,7 +363,9 @@ config PHY_ROCKCHIP_INNO_USB2
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tristate "Rockchip INNO USB2PHY Driver"
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depends on (ARCH_ROCKCHIP || COMPILE_TEST) && OF
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depends on COMMON_CLK
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depends on USB_SUPPORT
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select GENERIC_PHY
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select USB_COMMON
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help
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Support for Rockchip USB2.0 PHY with Innosilicon IP block.
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@ -438,14 +430,6 @@ config PHY_STIH407_USB
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Enable this support to enable the picoPHY device used by USB2
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and USB3 controllers on STMicroelectronics STiH407 SoC families.
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config PHY_STIH41X_USB
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tristate "STMicroelectronics USB2 PHY driver for STiH41x series"
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depends on ARCH_STI
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select GENERIC_PHY
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help
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Enable this to support the USB transceiver that is part of
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STMicroelectronics STiH41x SoC series.
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config PHY_QCOM_UFS
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tristate "Qualcomm UFS PHY driver"
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depends on OF && ARCH_QCOM
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@ -489,4 +473,17 @@ config PHY_NS2_PCIE
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help
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Enable this to support the Broadcom Northstar2 PCIe PHY.
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If unsure, say N.
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config PHY_MESON8B_USB2
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tristate "Meson8b and GXBB USB2 PHY driver"
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default ARCH_MESON
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depends on OF && (ARCH_MESON || COMPILE_TEST)
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depends on USB_SUPPORT
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select USB_COMMON
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select GENERIC_PHY
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help
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Enable this to support the Meson USB2 PHYs found in Meson8b
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and GXBB SoCs.
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If unsure, say N.
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endmenu
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@ -18,7 +18,6 @@ obj-$(CONFIG_PHY_PXA_28NM_USB2) += phy-pxa-28nm-usb2.o
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obj-$(CONFIG_PHY_PXA_28NM_HSIC) += phy-pxa-28nm-hsic.o
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obj-$(CONFIG_PHY_MVEBU_SATA) += phy-mvebu-sata.o
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obj-$(CONFIG_PHY_MIPHY28LP) += phy-miphy28lp.o
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obj-$(CONFIG_PHY_MIPHY365X) += phy-miphy365x.o
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obj-$(CONFIG_PHY_RCAR_GEN2) += phy-rcar-gen2.o
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obj-$(CONFIG_PHY_RCAR_GEN3_USB2) += phy-rcar-gen3-usb2.o
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obj-$(CONFIG_OMAP_CONTROL_PHY) += phy-omap-control.o
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@ -50,7 +49,6 @@ obj-$(CONFIG_PHY_ST_SPEAR1310_MIPHY) += phy-spear1310-miphy.o
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obj-$(CONFIG_PHY_ST_SPEAR1340_MIPHY) += phy-spear1340-miphy.o
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obj-$(CONFIG_PHY_XGENE) += phy-xgene.o
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obj-$(CONFIG_PHY_STIH407_USB) += phy-stih407-usb.o
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obj-$(CONFIG_PHY_STIH41X_USB) += phy-stih41x-usb.o
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obj-$(CONFIG_PHY_QCOM_UFS) += phy-qcom-ufs.o
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obj-$(CONFIG_PHY_QCOM_UFS) += phy-qcom-ufs-qmp-20nm.o
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obj-$(CONFIG_PHY_QCOM_UFS) += phy-qcom-ufs-qmp-14nm.o
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@ -60,3 +58,4 @@ obj-$(CONFIG_PHY_PISTACHIO_USB) += phy-pistachio-usb.o
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obj-$(CONFIG_PHY_CYGNUS_PCIE) += phy-bcm-cygnus-pcie.o
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obj-$(CONFIG_ARCH_TEGRA) += tegra/
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obj-$(CONFIG_PHY_NS2_PCIE) += phy-bcm-ns2-pcie.o
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obj-$(CONFIG_PHY_MESON8B_USB2) += phy-meson8b-usb2.o
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@ -85,7 +85,6 @@ static int phy_berlin_sata_power_on(struct phy *phy)
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struct phy_berlin_desc *desc = phy_get_drvdata(phy);
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struct phy_berlin_priv *priv = dev_get_drvdata(phy->dev.parent);
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void __iomem *ctrl_reg = priv->base + 0x60 + (desc->index * 0x80);
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int ret = 0;
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u32 regval;
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clk_prepare_enable(priv->clk);
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@ -130,7 +129,7 @@ static int phy_berlin_sata_power_on(struct phy *phy)
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clk_disable_unprepare(priv->clk);
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return ret;
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return 0;
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}
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static int phy_berlin_sata_power_off(struct phy *phy)
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@ -140,7 +140,7 @@ static inline void __iomem *brcm_sata_pcb_base(struct brcm_sata_port *port)
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default:
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dev_err(priv->dev, "invalid phy version\n");
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break;
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};
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}
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return priv->phy_base + (port->portnum * size);
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}
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@ -157,7 +157,7 @@ static inline void __iomem *brcm_sata_ctrl_base(struct brcm_sata_port *port)
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default:
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dev_err(priv->dev, "invalid phy version\n");
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break;
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};
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}
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return priv->ctrl_base + (port->portnum * size);
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}
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@ -365,7 +365,7 @@ static int brcm_sata_phy_init(struct phy *phy)
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break;
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default:
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rc = -ENODEV;
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};
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}
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return rc;
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}
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@ -23,6 +23,8 @@
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#include <linux/platform_device.h>
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#include <linux/regmap.h>
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#define PHY_INIT_BITS (CFGCHIP2_SESENDEN | CFGCHIP2_VBDTCTEN)
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struct da8xx_usb_phy {
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struct phy_provider *phy_provider;
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struct phy *usb11_phy;
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@ -208,6 +210,9 @@ static int da8xx_usb_phy_probe(struct platform_device *pdev)
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dev_warn(dev, "Failed to create usb20 phy lookup\n");
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}
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regmap_write_bits(d_phy->regmap, CFGCHIP(2),
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PHY_INIT_BITS, PHY_INIT_BITS);
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return 0;
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}
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@ -229,19 +229,6 @@ struct exynos_mipi_video_phy {
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spinlock_t slock;
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};
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static inline int __is_running(const struct exynos_mipi_phy_desc *data,
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struct exynos_mipi_video_phy *state)
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{
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u32 val;
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int ret;
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ret = regmap_read(state->regmaps[data->resetn_map], data->resetn_reg, &val);
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if (ret)
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return 0;
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return val & data->resetn_val;
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}
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static int __set_phy_state(const struct exynos_mipi_phy_desc *data,
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struct exynos_mipi_video_phy *state, unsigned int on)
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{
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@ -251,7 +238,7 @@ static int __set_phy_state(const struct exynos_mipi_phy_desc *data,
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/* disable in PMU sysreg */
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if (!on && data->coupled_phy_id >= 0 &&
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!__is_running(state->phys[data->coupled_phy_id].data, state)) {
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state->phys[data->coupled_phy_id].phy->power_count == 0) {
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regmap_read(state->regmaps[data->enable_map], data->enable_reg,
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&val);
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val &= ~data->enable_val;
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@ -141,7 +141,7 @@ static void exynos4210_isol(struct samsung_usb2_phy_instance *inst, bool on)
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break;
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default:
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return;
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};
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}
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regmap_update_bits(drv->reg_pmu, offset, mask, on ? 0 : mask);
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}
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@ -179,7 +179,7 @@ static void exynos4210_phy_pwr(struct samsung_usb2_phy_instance *inst, bool on)
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rstbits = EXYNOS_4210_URSTCON_PHY1_P1P2 |
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EXYNOS_4210_URSTCON_HOST_LINK_P2;
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break;
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};
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}
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if (on) {
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clk = readl(drv->reg_phy + EXYNOS_4210_UPHYCLK);
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@ -187,7 +187,7 @@ static void exynos4x12_isol(struct samsung_usb2_phy_instance *inst, bool on)
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break;
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default:
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return;
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};
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}
|
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|
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regmap_update_bits(drv->reg_pmu, offset, mask, on ? 0 : mask);
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}
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@ -237,7 +237,7 @@ static void exynos4x12_phy_pwr(struct samsung_usb2_phy_instance *inst, bool on)
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rstbits = EXYNOS_4x12_URSTCON_HSIC1 |
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EXYNOS_4x12_URSTCON_HOST_LINK_P1;
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break;
|
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};
|
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}
|
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|
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if (on) {
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pwr = readl(drv->reg_phy + EXYNOS_4x12_UPHYPWR);
|
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|
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@ -192,7 +192,7 @@ static void exynos5250_isol(struct samsung_usb2_phy_instance *inst, bool on)
|
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break;
|
||||
default:
|
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return;
|
||||
};
|
||||
}
|
||||
|
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regmap_update_bits(drv->reg_pmu, offset, mask, on ? 0 : mask);
|
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}
|
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|
||||
286
drivers/phy/phy-meson8b-usb2.c
Normal file
286
drivers/phy/phy-meson8b-usb2.c
Normal file
@ -0,0 +1,286 @@
|
||||
/*
|
||||
* Meson8b and GXBB USB2 PHY driver
|
||||
*
|
||||
* Copyright (C) 2016 Martin Blumenstingl <martin.blumenstingl@googlemail.com>
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#include <linux/clk.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/of_device.h>
|
||||
#include <linux/reset.h>
|
||||
#include <linux/phy/phy.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/usb/of.h>
|
||||
|
||||
#define REG_CONFIG 0x00
|
||||
#define REG_CONFIG_CLK_EN BIT(0)
|
||||
#define REG_CONFIG_CLK_SEL_MASK GENMASK(3, 1)
|
||||
#define REG_CONFIG_CLK_DIV_MASK GENMASK(10, 4)
|
||||
#define REG_CONFIG_CLK_32k_ALTSEL BIT(15)
|
||||
#define REG_CONFIG_TEST_TRIG BIT(31)
|
||||
|
||||
#define REG_CTRL 0x04
|
||||
#define REG_CTRL_SOFT_PRST BIT(0)
|
||||
#define REG_CTRL_SOFT_HRESET BIT(1)
|
||||
#define REG_CTRL_SS_SCALEDOWN_MODE_MASK GENMASK(3, 2)
|
||||
#define REG_CTRL_CLK_DET_RST BIT(4)
|
||||
#define REG_CTRL_INTR_SEL BIT(5)
|
||||
#define REG_CTRL_CLK_DETECTED BIT(8)
|
||||
#define REG_CTRL_SOF_SENT_RCVD_TGL BIT(9)
|
||||
#define REG_CTRL_SOF_TOGGLE_OUT BIT(10)
|
||||
#define REG_CTRL_POWER_ON_RESET BIT(15)
|
||||
#define REG_CTRL_SLEEPM BIT(16)
|
||||
#define REG_CTRL_TX_BITSTUFF_ENN_H BIT(17)
|
||||
#define REG_CTRL_TX_BITSTUFF_ENN BIT(18)
|
||||
#define REG_CTRL_COMMON_ON BIT(19)
|
||||
#define REG_CTRL_REF_CLK_SEL_MASK GENMASK(21, 20)
|
||||
#define REG_CTRL_REF_CLK_SEL_SHIFT 20
|
||||
#define REG_CTRL_FSEL_MASK GENMASK(24, 22)
|
||||
#define REG_CTRL_FSEL_SHIFT 22
|
||||
#define REG_CTRL_PORT_RESET BIT(25)
|
||||
#define REG_CTRL_THREAD_ID_MASK GENMASK(31, 26)
|
||||
|
||||
#define REG_ENDP_INTR 0x08
|
||||
|
||||
/* bits [31:26], [24:21] and [15:3] seem to be read-only */
|
||||
#define REG_ADP_BC 0x0c
|
||||
#define REG_ADP_BC_VBUS_VLD_EXT_SEL BIT(0)
|
||||
#define REG_ADP_BC_VBUS_VLD_EXT BIT(1)
|
||||
#define REG_ADP_BC_OTG_DISABLE BIT(2)
|
||||
#define REG_ADP_BC_ID_PULLUP BIT(3)
|
||||
#define REG_ADP_BC_DRV_VBUS BIT(4)
|
||||
#define REG_ADP_BC_ADP_PRB_EN BIT(5)
|
||||
#define REG_ADP_BC_ADP_DISCHARGE BIT(6)
|
||||
#define REG_ADP_BC_ADP_CHARGE BIT(7)
|
||||
#define REG_ADP_BC_SESS_END BIT(8)
|
||||
#define REG_ADP_BC_DEVICE_SESS_VLD BIT(9)
|
||||
#define REG_ADP_BC_B_VALID BIT(10)
|
||||
#define REG_ADP_BC_A_VALID BIT(11)
|
||||
#define REG_ADP_BC_ID_DIG BIT(12)
|
||||
#define REG_ADP_BC_VBUS_VALID BIT(13)
|
||||
#define REG_ADP_BC_ADP_PROBE BIT(14)
|
||||
#define REG_ADP_BC_ADP_SENSE BIT(15)
|
||||
#define REG_ADP_BC_ACA_ENABLE BIT(16)
|
||||
#define REG_ADP_BC_DCD_ENABLE BIT(17)
|
||||
#define REG_ADP_BC_VDAT_DET_EN_B BIT(18)
|
||||
#define REG_ADP_BC_VDAT_SRC_EN_B BIT(19)
|
||||
#define REG_ADP_BC_CHARGE_SEL BIT(20)
|
||||
#define REG_ADP_BC_CHARGE_DETECT BIT(21)
|
||||
#define REG_ADP_BC_ACA_PIN_RANGE_C BIT(22)
|
||||
#define REG_ADP_BC_ACA_PIN_RANGE_B BIT(23)
|
||||
#define REG_ADP_BC_ACA_PIN_RANGE_A BIT(24)
|
||||
#define REG_ADP_BC_ACA_PIN_GND BIT(25)
|
||||
#define REG_ADP_BC_ACA_PIN_FLOAT BIT(26)
|
||||
|
||||
#define REG_DBG_UART 0x14
|
||||
|
||||
#define REG_TEST 0x18
|
||||
#define REG_TEST_DATA_IN_MASK GENMASK(3, 0)
|
||||
#define REG_TEST_EN_MASK GENMASK(7, 4)
|
||||
#define REG_TEST_ADDR_MASK GENMASK(11, 8)
|
||||
#define REG_TEST_DATA_OUT_SEL BIT(12)
|
||||
#define REG_TEST_CLK BIT(13)
|
||||
#define REG_TEST_VA_TEST_EN_B_MASK GENMASK(15, 14)
|
||||
#define REG_TEST_DATA_OUT_MASK GENMASK(19, 16)
|
||||
#define REG_TEST_DISABLE_ID_PULLUP BIT(20)
|
||||
|
||||
#define REG_TUNE 0x1c
|
||||
#define REG_TUNE_TX_RES_TUNE_MASK GENMASK(1, 0)
|
||||
#define REG_TUNE_TX_HSXV_TUNE_MASK GENMASK(3, 2)
|
||||
#define REG_TUNE_TX_VREF_TUNE_MASK GENMASK(7, 4)
|
||||
#define REG_TUNE_TX_RISE_TUNE_MASK GENMASK(9, 8)
|
||||
#define REG_TUNE_TX_PREEMP_PULSE_TUNE BIT(10)
|
||||
#define REG_TUNE_TX_PREEMP_AMP_TUNE_MASK GENMASK(12, 11)
|
||||
#define REG_TUNE_TX_FSLS_TUNE_MASK GENMASK(16, 13)
|
||||
#define REG_TUNE_SQRX_TUNE_MASK GENMASK(19, 17)
|
||||
#define REG_TUNE_OTG_TUNE GENMASK(22, 20)
|
||||
#define REG_TUNE_COMP_DIS_TUNE GENMASK(25, 23)
|
||||
#define REG_TUNE_HOST_DM_PULLDOWN BIT(26)
|
||||
#define REG_TUNE_HOST_DP_PULLDOWN BIT(27)
|
||||
|
||||
#define RESET_COMPLETE_TIME 500
|
||||
#define ACA_ENABLE_COMPLETE_TIME 50
|
||||
|
||||
struct phy_meson8b_usb2_priv {
|
||||
void __iomem *regs;
|
||||
enum usb_dr_mode dr_mode;
|
||||
struct clk *clk_usb_general;
|
||||
struct clk *clk_usb;
|
||||
struct reset_control *reset;
|
||||
};
|
||||
|
||||
static u32 phy_meson8b_usb2_read(struct phy_meson8b_usb2_priv *phy_priv,
|
||||
u32 reg)
|
||||
{
|
||||
return readl(phy_priv->regs + reg);
|
||||
}
|
||||
|
||||
static void phy_meson8b_usb2_mask_bits(struct phy_meson8b_usb2_priv *phy_priv,
|
||||
u32 reg, u32 mask, u32 value)
|
||||
{
|
||||
u32 data;
|
||||
|
||||
data = phy_meson8b_usb2_read(phy_priv, reg);
|
||||
data &= ~mask;
|
||||
data |= (value & mask);
|
||||
|
||||
writel(data, phy_priv->regs + reg);
|
||||
}
|
||||
|
||||
static int phy_meson8b_usb2_power_on(struct phy *phy)
|
||||
{
|
||||
struct phy_meson8b_usb2_priv *priv = phy_get_drvdata(phy);
|
||||
int ret;
|
||||
|
||||
if (!IS_ERR_OR_NULL(priv->reset)) {
|
||||
ret = reset_control_reset(priv->reset);
|
||||
if (ret) {
|
||||
dev_err(&phy->dev, "Failed to trigger USB reset\n");
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
ret = clk_prepare_enable(priv->clk_usb_general);
|
||||
if (ret) {
|
||||
dev_err(&phy->dev, "Failed to enable USB general clock\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = clk_prepare_enable(priv->clk_usb);
|
||||
if (ret) {
|
||||
dev_err(&phy->dev, "Failed to enable USB DDR clock\n");
|
||||
clk_disable_unprepare(priv->clk_usb_general);
|
||||
return ret;
|
||||
}
|
||||
|
||||
phy_meson8b_usb2_mask_bits(priv, REG_CONFIG, REG_CONFIG_CLK_32k_ALTSEL,
|
||||
REG_CONFIG_CLK_32k_ALTSEL);
|
||||
|
||||
phy_meson8b_usb2_mask_bits(priv, REG_CTRL, REG_CTRL_REF_CLK_SEL_MASK,
|
||||
0x2 << REG_CTRL_REF_CLK_SEL_SHIFT);
|
||||
|
||||
phy_meson8b_usb2_mask_bits(priv, REG_CTRL, REG_CTRL_FSEL_MASK,
|
||||
0x5 << REG_CTRL_FSEL_SHIFT);
|
||||
|
||||
/* reset the PHY */
|
||||
phy_meson8b_usb2_mask_bits(priv, REG_CTRL, REG_CTRL_POWER_ON_RESET,
|
||||
REG_CTRL_POWER_ON_RESET);
|
||||
udelay(RESET_COMPLETE_TIME);
|
||||
phy_meson8b_usb2_mask_bits(priv, REG_CTRL, REG_CTRL_POWER_ON_RESET, 0);
|
||||
udelay(RESET_COMPLETE_TIME);
|
||||
|
||||
phy_meson8b_usb2_mask_bits(priv, REG_CTRL, REG_CTRL_SOF_TOGGLE_OUT,
|
||||
REG_CTRL_SOF_TOGGLE_OUT);
|
||||
|
||||
if (priv->dr_mode == USB_DR_MODE_HOST) {
|
||||
phy_meson8b_usb2_mask_bits(priv, REG_ADP_BC,
|
||||
REG_ADP_BC_ACA_ENABLE,
|
||||
REG_ADP_BC_ACA_ENABLE);
|
||||
|
||||
udelay(ACA_ENABLE_COMPLETE_TIME);
|
||||
|
||||
if (phy_meson8b_usb2_read(priv, REG_ADP_BC) &
|
||||
REG_ADP_BC_ACA_PIN_FLOAT) {
|
||||
dev_warn(&phy->dev, "USB ID detect failed!\n");
|
||||
clk_disable_unprepare(priv->clk_usb);
|
||||
clk_disable_unprepare(priv->clk_usb_general);
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int phy_meson8b_usb2_power_off(struct phy *phy)
|
||||
{
|
||||
struct phy_meson8b_usb2_priv *priv = phy_get_drvdata(phy);
|
||||
|
||||
clk_disable_unprepare(priv->clk_usb);
|
||||
clk_disable_unprepare(priv->clk_usb_general);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct phy_ops phy_meson8b_usb2_ops = {
|
||||
.power_on = phy_meson8b_usb2_power_on,
|
||||
.power_off = phy_meson8b_usb2_power_off,
|
||||
.owner = THIS_MODULE,
|
||||
};
|
||||
|
||||
static int phy_meson8b_usb2_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct phy_meson8b_usb2_priv *priv;
|
||||
struct resource *res;
|
||||
struct phy *phy;
|
||||
struct phy_provider *phy_provider;
|
||||
|
||||
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
|
||||
if (!priv)
|
||||
return -ENOMEM;
|
||||
|
||||
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||
priv->regs = devm_ioremap_resource(&pdev->dev, res);
|
||||
if (IS_ERR(priv->regs))
|
||||
return PTR_ERR(priv->regs);
|
||||
|
||||
priv->clk_usb_general = devm_clk_get(&pdev->dev, "usb_general");
|
||||
if (IS_ERR(priv->clk_usb_general))
|
||||
return PTR_ERR(priv->clk_usb_general);
|
||||
|
||||
priv->clk_usb = devm_clk_get(&pdev->dev, "usb");
|
||||
if (IS_ERR(priv->clk_usb))
|
||||
return PTR_ERR(priv->clk_usb);
|
||||
|
||||
priv->reset = devm_reset_control_get_optional_shared(&pdev->dev, NULL);
|
||||
if (PTR_ERR(priv->reset) == -EPROBE_DEFER)
|
||||
return PTR_ERR(priv->reset);
|
||||
|
||||
priv->dr_mode = of_usb_get_dr_mode_by_phy(pdev->dev.of_node, -1);
|
||||
if (priv->dr_mode == USB_DR_MODE_UNKNOWN) {
|
||||
dev_err(&pdev->dev,
|
||||
"missing dual role configuration of the controller\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
phy = devm_phy_create(&pdev->dev, NULL, &phy_meson8b_usb2_ops);
|
||||
if (IS_ERR(phy)) {
|
||||
dev_err(&pdev->dev, "failed to create PHY\n");
|
||||
return PTR_ERR(phy);
|
||||
}
|
||||
|
||||
phy_set_drvdata(phy, priv);
|
||||
|
||||
phy_provider =
|
||||
devm_of_phy_provider_register(&pdev->dev, of_phy_simple_xlate);
|
||||
|
||||
return PTR_ERR_OR_ZERO(phy_provider);
|
||||
}
|
||||
|
||||
static const struct of_device_id phy_meson8b_usb2_of_match[] = {
|
||||
{ .compatible = "amlogic,meson8b-usb2-phy", },
|
||||
{ .compatible = "amlogic,meson-gxbb-usb2-phy", },
|
||||
{ },
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, phy_meson8b_usb2_of_match);
|
||||
|
||||
static struct platform_driver phy_meson8b_usb2_driver = {
|
||||
.probe = phy_meson8b_usb2_probe,
|
||||
.driver = {
|
||||
.name = "phy-meson-usb2",
|
||||
.of_match_table = phy_meson8b_usb2_of_match,
|
||||
},
|
||||
};
|
||||
module_platform_driver(phy_meson8b_usb2_driver);
|
||||
|
||||
MODULE_AUTHOR("Martin Blumenstingl <martin.blumenstingl@googlemail.com>");
|
||||
MODULE_DESCRIPTION("Meson8b and GXBB USB2 PHY driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
@ -1,625 +0,0 @@
|
||||
/*
|
||||
* Copyright (C) 2014 STMicroelectronics – All Rights Reserved
|
||||
*
|
||||
* STMicroelectronics PHY driver MiPHY365 (for SoC STiH416).
|
||||
*
|
||||
* Authors: Alexandre Torgue <alexandre.torgue@st.com>
|
||||
* Lee Jones <lee.jones@linaro.org>
|
||||
*
|
||||
* 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/platform_device.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/of_platform.h>
|
||||
#include <linux/of_address.h>
|
||||
#include <linux/clk.h>
|
||||
#include <linux/phy/phy.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/mfd/syscon.h>
|
||||
#include <linux/regmap.h>
|
||||
|
||||
#include <dt-bindings/phy/phy.h>
|
||||
|
||||
#define HFC_TIMEOUT 100
|
||||
|
||||
#define SYSCFG_SELECT_SATA_MASK BIT(1)
|
||||
#define SYSCFG_SELECT_SATA_POS 1
|
||||
|
||||
/* MiPHY365x register definitions */
|
||||
#define RESET_REG 0x00
|
||||
#define RST_PLL BIT(1)
|
||||
#define RST_PLL_CAL BIT(2)
|
||||
#define RST_RX BIT(4)
|
||||
#define RST_MACRO BIT(7)
|
||||
|
||||
#define STATUS_REG 0x01
|
||||
#define IDLL_RDY BIT(0)
|
||||
#define PLL_RDY BIT(1)
|
||||
#define DES_BIT_LOCK BIT(2)
|
||||
#define DES_SYMBOL_LOCK BIT(3)
|
||||
|
||||
#define CTRL_REG 0x02
|
||||
#define TERM_EN BIT(0)
|
||||
#define PCI_EN BIT(2)
|
||||
#define DES_BIT_LOCK_EN BIT(3)
|
||||
#define TX_POL BIT(5)
|
||||
|
||||
#define INT_CTRL_REG 0x03
|
||||
|
||||
#define BOUNDARY1_REG 0x10
|
||||
#define SPDSEL_SEL BIT(0)
|
||||
|
||||
#define BOUNDARY3_REG 0x12
|
||||
#define TX_SPDSEL_GEN1_VAL 0
|
||||
#define TX_SPDSEL_GEN2_VAL 0x01
|
||||
#define TX_SPDSEL_GEN3_VAL 0x02
|
||||
#define RX_SPDSEL_GEN1_VAL 0
|
||||
#define RX_SPDSEL_GEN2_VAL (0x01 << 3)
|
||||
#define RX_SPDSEL_GEN3_VAL (0x02 << 3)
|
||||
|
||||
#define PCIE_REG 0x16
|
||||
|
||||
#define BUF_SEL_REG 0x20
|
||||
#define CONF_GEN_SEL_GEN3 0x02
|
||||
#define CONF_GEN_SEL_GEN2 0x01
|
||||
#define PD_VDDTFILTER BIT(4)
|
||||
|
||||
#define TXBUF1_REG 0x21
|
||||
#define SWING_VAL 0x04
|
||||
#define SWING_VAL_GEN1 0x03
|
||||
#define PREEMPH_VAL (0x3 << 5)
|
||||
|
||||
#define TXBUF2_REG 0x22
|
||||
#define TXSLEW_VAL 0x2
|
||||
#define TXSLEW_VAL_GEN1 0x4
|
||||
|
||||
#define RXBUF_OFFSET_CTRL_REG 0x23
|
||||
|
||||
#define RXBUF_REG 0x25
|
||||
#define SDTHRES_VAL 0x01
|
||||
#define EQ_ON3 (0x03 << 4)
|
||||
#define EQ_ON1 (0x01 << 4)
|
||||
|
||||
#define COMP_CTRL1_REG 0x40
|
||||
#define START_COMSR BIT(0)
|
||||
#define START_COMZC BIT(1)
|
||||
#define COMSR_DONE BIT(2)
|
||||
#define COMZC_DONE BIT(3)
|
||||
#define COMP_AUTO_LOAD BIT(4)
|
||||
|
||||
#define COMP_CTRL2_REG 0x41
|
||||
#define COMP_2MHZ_RAT_GEN1 0x1e
|
||||
#define COMP_2MHZ_RAT 0xf
|
||||
|
||||
#define COMP_CTRL3_REG 0x42
|
||||
#define COMSR_COMP_REF 0x33
|
||||
|
||||
#define COMP_IDLL_REG 0x47
|
||||
#define COMZC_IDLL 0x2a
|
||||
|
||||
#define PLL_CTRL1_REG 0x50
|
||||
#define PLL_START_CAL BIT(0)
|
||||
#define BUF_EN BIT(2)
|
||||
#define SYNCHRO_TX BIT(3)
|
||||
#define SSC_EN BIT(6)
|
||||
#define CONFIG_PLL BIT(7)
|
||||
|
||||
#define PLL_CTRL2_REG 0x51
|
||||
#define BYPASS_PLL_CAL BIT(1)
|
||||
|
||||
#define PLL_RAT_REG 0x52
|
||||
|
||||
#define PLL_SSC_STEP_MSB_REG 0x56
|
||||
#define PLL_SSC_STEP_MSB_VAL 0x03
|
||||
|
||||
#define PLL_SSC_STEP_LSB_REG 0x57
|
||||
#define PLL_SSC_STEP_LSB_VAL 0x63
|
||||
|
||||
#define PLL_SSC_PER_MSB_REG 0x58
|
||||
#define PLL_SSC_PER_MSB_VAL 0
|
||||
|
||||
#define PLL_SSC_PER_LSB_REG 0x59
|
||||
#define PLL_SSC_PER_LSB_VAL 0xf1
|
||||
|
||||
#define IDLL_TEST_REG 0x72
|
||||
#define START_CLK_HF BIT(6)
|
||||
|
||||
#define DES_BITLOCK_REG 0x86
|
||||
#define BIT_LOCK_LEVEL 0x01
|
||||
#define BIT_LOCK_CNT_512 (0x03 << 5)
|
||||
|
||||
struct miphy365x_phy {
|
||||
struct phy *phy;
|
||||
void __iomem *base;
|
||||
bool pcie_tx_pol_inv;
|
||||
bool sata_tx_pol_inv;
|
||||
u32 sata_gen;
|
||||
u32 ctrlreg;
|
||||
u8 type;
|
||||
};
|
||||
|
||||
struct miphy365x_dev {
|
||||
struct device *dev;
|
||||
struct regmap *regmap;
|
||||
struct mutex miphy_mutex;
|
||||
struct miphy365x_phy **phys;
|
||||
int nphys;
|
||||
};
|
||||
|
||||
/*
|
||||
* These values are represented in Device tree. They are considered to be ABI
|
||||
* and although they can be extended any existing values must not change.
|
||||
*/
|
||||
enum miphy_sata_gen {
|
||||
SATA_GEN1 = 1,
|
||||
SATA_GEN2,
|
||||
SATA_GEN3
|
||||
};
|
||||
|
||||
static u8 rx_tx_spd[] = {
|
||||
0, /* GEN0 doesn't exist. */
|
||||
TX_SPDSEL_GEN1_VAL | RX_SPDSEL_GEN1_VAL,
|
||||
TX_SPDSEL_GEN2_VAL | RX_SPDSEL_GEN2_VAL,
|
||||
TX_SPDSEL_GEN3_VAL | RX_SPDSEL_GEN3_VAL
|
||||
};
|
||||
|
||||
/*
|
||||
* This function selects the system configuration,
|
||||
* either two SATA, one SATA and one PCIe, or two PCIe lanes.
|
||||
*/
|
||||
static int miphy365x_set_path(struct miphy365x_phy *miphy_phy,
|
||||
struct miphy365x_dev *miphy_dev)
|
||||
{
|
||||
bool sata = (miphy_phy->type == PHY_TYPE_SATA);
|
||||
|
||||
return regmap_update_bits(miphy_dev->regmap,
|
||||
miphy_phy->ctrlreg,
|
||||
SYSCFG_SELECT_SATA_MASK,
|
||||
sata << SYSCFG_SELECT_SATA_POS);
|
||||
}
|
||||
|
||||
static int miphy365x_init_pcie_port(struct miphy365x_phy *miphy_phy,
|
||||
struct miphy365x_dev *miphy_dev)
|
||||
{
|
||||
u8 val;
|
||||
|
||||
if (miphy_phy->pcie_tx_pol_inv) {
|
||||
/* Invert Tx polarity and clear pci_txdetect_pol bit */
|
||||
val = TERM_EN | PCI_EN | DES_BIT_LOCK_EN | TX_POL;
|
||||
writeb_relaxed(val, miphy_phy->base + CTRL_REG);
|
||||
writeb_relaxed(0x00, miphy_phy->base + PCIE_REG);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline int miphy365x_hfc_not_rdy(struct miphy365x_phy *miphy_phy,
|
||||
struct miphy365x_dev *miphy_dev)
|
||||
{
|
||||
unsigned long timeout = jiffies + msecs_to_jiffies(HFC_TIMEOUT);
|
||||
u8 mask = IDLL_RDY | PLL_RDY;
|
||||
u8 regval;
|
||||
|
||||
do {
|
||||
regval = readb_relaxed(miphy_phy->base + STATUS_REG);
|
||||
if (!(regval & mask))
|
||||
return 0;
|
||||
|
||||
usleep_range(2000, 2500);
|
||||
} while (time_before(jiffies, timeout));
|
||||
|
||||
dev_err(miphy_dev->dev, "HFC ready timeout!\n");
|
||||
return -EBUSY;
|
||||
}
|
||||
|
||||
static inline int miphy365x_rdy(struct miphy365x_phy *miphy_phy,
|
||||
struct miphy365x_dev *miphy_dev)
|
||||
{
|
||||
unsigned long timeout = jiffies + msecs_to_jiffies(HFC_TIMEOUT);
|
||||
u8 mask = IDLL_RDY | PLL_RDY;
|
||||
u8 regval;
|
||||
|
||||
do {
|
||||
regval = readb_relaxed(miphy_phy->base + STATUS_REG);
|
||||
if ((regval & mask) == mask)
|
||||
return 0;
|
||||
|
||||
usleep_range(2000, 2500);
|
||||
} while (time_before(jiffies, timeout));
|
||||
|
||||
dev_err(miphy_dev->dev, "PHY not ready timeout!\n");
|
||||
return -EBUSY;
|
||||
}
|
||||
|
||||
static inline void miphy365x_set_comp(struct miphy365x_phy *miphy_phy,
|
||||
struct miphy365x_dev *miphy_dev)
|
||||
{
|
||||
u8 val, mask;
|
||||
|
||||
if (miphy_phy->sata_gen == SATA_GEN1)
|
||||
writeb_relaxed(COMP_2MHZ_RAT_GEN1,
|
||||
miphy_phy->base + COMP_CTRL2_REG);
|
||||
else
|
||||
writeb_relaxed(COMP_2MHZ_RAT,
|
||||
miphy_phy->base + COMP_CTRL2_REG);
|
||||
|
||||
if (miphy_phy->sata_gen != SATA_GEN3) {
|
||||
writeb_relaxed(COMSR_COMP_REF,
|
||||
miphy_phy->base + COMP_CTRL3_REG);
|
||||
/*
|
||||
* Force VCO current to value defined by address 0x5A
|
||||
* and disable PCIe100Mref bit
|
||||
* Enable auto load compensation for pll_i_bias
|
||||
*/
|
||||
writeb_relaxed(BYPASS_PLL_CAL, miphy_phy->base + PLL_CTRL2_REG);
|
||||
writeb_relaxed(COMZC_IDLL, miphy_phy->base + COMP_IDLL_REG);
|
||||
}
|
||||
|
||||
/*
|
||||
* Force restart compensation and enable auto load
|
||||
* for Comzc_Tx, Comzc_Rx and Comsr on macro
|
||||
*/
|
||||
val = START_COMSR | START_COMZC | COMP_AUTO_LOAD;
|
||||
writeb_relaxed(val, miphy_phy->base + COMP_CTRL1_REG);
|
||||
|
||||
mask = COMSR_DONE | COMZC_DONE;
|
||||
while ((readb_relaxed(miphy_phy->base + COMP_CTRL1_REG) & mask) != mask)
|
||||
cpu_relax();
|
||||
}
|
||||
|
||||
static inline void miphy365x_set_ssc(struct miphy365x_phy *miphy_phy,
|
||||
struct miphy365x_dev *miphy_dev)
|
||||
{
|
||||
u8 val;
|
||||
|
||||
/*
|
||||
* SSC Settings. SSC will be enabled through Link
|
||||
* SSC Ampl. = 0.4%
|
||||
* SSC Freq = 31KHz
|
||||
*/
|
||||
writeb_relaxed(PLL_SSC_STEP_MSB_VAL,
|
||||
miphy_phy->base + PLL_SSC_STEP_MSB_REG);
|
||||
writeb_relaxed(PLL_SSC_STEP_LSB_VAL,
|
||||
miphy_phy->base + PLL_SSC_STEP_LSB_REG);
|
||||
writeb_relaxed(PLL_SSC_PER_MSB_VAL,
|
||||
miphy_phy->base + PLL_SSC_PER_MSB_REG);
|
||||
writeb_relaxed(PLL_SSC_PER_LSB_VAL,
|
||||
miphy_phy->base + PLL_SSC_PER_LSB_REG);
|
||||
|
||||
/* SSC Settings complete */
|
||||
if (miphy_phy->sata_gen == SATA_GEN1) {
|
||||
val = PLL_START_CAL | BUF_EN | SYNCHRO_TX | CONFIG_PLL;
|
||||
writeb_relaxed(val, miphy_phy->base + PLL_CTRL1_REG);
|
||||
} else {
|
||||
val = SSC_EN | PLL_START_CAL | BUF_EN | SYNCHRO_TX | CONFIG_PLL;
|
||||
writeb_relaxed(val, miphy_phy->base + PLL_CTRL1_REG);
|
||||
}
|
||||
}
|
||||
|
||||
static int miphy365x_init_sata_port(struct miphy365x_phy *miphy_phy,
|
||||
struct miphy365x_dev *miphy_dev)
|
||||
{
|
||||
int ret;
|
||||
u8 val;
|
||||
|
||||
/*
|
||||
* Force PHY macro reset, PLL calibration reset, PLL reset
|
||||
* and assert Deserializer Reset
|
||||
*/
|
||||
val = RST_PLL | RST_PLL_CAL | RST_RX | RST_MACRO;
|
||||
writeb_relaxed(val, miphy_phy->base + RESET_REG);
|
||||
|
||||
if (miphy_phy->sata_tx_pol_inv)
|
||||
writeb_relaxed(TX_POL, miphy_phy->base + CTRL_REG);
|
||||
|
||||
/*
|
||||
* Force macro1 to use rx_lspd, tx_lspd
|
||||
* Force Rx_Clock on first I-DLL phase
|
||||
* Force Des in HP mode on macro, rx_lspd, tx_lspd for Gen2/3
|
||||
*/
|
||||
writeb_relaxed(SPDSEL_SEL, miphy_phy->base + BOUNDARY1_REG);
|
||||
writeb_relaxed(START_CLK_HF, miphy_phy->base + IDLL_TEST_REG);
|
||||
val = rx_tx_spd[miphy_phy->sata_gen];
|
||||
writeb_relaxed(val, miphy_phy->base + BOUNDARY3_REG);
|
||||
|
||||
/* Wait for HFC_READY = 0 */
|
||||
ret = miphy365x_hfc_not_rdy(miphy_phy, miphy_dev);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
/* Compensation Recalibration */
|
||||
miphy365x_set_comp(miphy_phy, miphy_dev);
|
||||
|
||||
switch (miphy_phy->sata_gen) {
|
||||
case SATA_GEN3:
|
||||
/*
|
||||
* TX Swing target 550-600mv peak to peak diff
|
||||
* Tx Slew target 90-110ps rising/falling time
|
||||
* Rx Eq ON3, Sigdet threshold SDTH1
|
||||
*/
|
||||
val = PD_VDDTFILTER | CONF_GEN_SEL_GEN3;
|
||||
writeb_relaxed(val, miphy_phy->base + BUF_SEL_REG);
|
||||
val = SWING_VAL | PREEMPH_VAL;
|
||||
writeb_relaxed(val, miphy_phy->base + TXBUF1_REG);
|
||||
writeb_relaxed(TXSLEW_VAL, miphy_phy->base + TXBUF2_REG);
|
||||
writeb_relaxed(0x00, miphy_phy->base + RXBUF_OFFSET_CTRL_REG);
|
||||
val = SDTHRES_VAL | EQ_ON3;
|
||||
writeb_relaxed(val, miphy_phy->base + RXBUF_REG);
|
||||
break;
|
||||
case SATA_GEN2:
|
||||
/*
|
||||
* conf gen sel=0x1 to program Gen2 banked registers
|
||||
* VDDT filter ON
|
||||
* Tx Swing target 550-600mV peak-to-peak diff
|
||||
* Tx Slew target 90-110 ps rising/falling time
|
||||
* RX Equalization ON1, Sigdet threshold SDTH1
|
||||
*/
|
||||
writeb_relaxed(CONF_GEN_SEL_GEN2,
|
||||
miphy_phy->base + BUF_SEL_REG);
|
||||
writeb_relaxed(SWING_VAL, miphy_phy->base + TXBUF1_REG);
|
||||
writeb_relaxed(TXSLEW_VAL, miphy_phy->base + TXBUF2_REG);
|
||||
val = SDTHRES_VAL | EQ_ON1;
|
||||
writeb_relaxed(val, miphy_phy->base + RXBUF_REG);
|
||||
break;
|
||||
case SATA_GEN1:
|
||||
/*
|
||||
* conf gen sel = 00b to program Gen1 banked registers
|
||||
* VDDT filter ON
|
||||
* Tx Swing target 500-550mV peak-to-peak diff
|
||||
* Tx Slew target120-140 ps rising/falling time
|
||||
*/
|
||||
writeb_relaxed(PD_VDDTFILTER, miphy_phy->base + BUF_SEL_REG);
|
||||
writeb_relaxed(SWING_VAL_GEN1, miphy_phy->base + TXBUF1_REG);
|
||||
writeb_relaxed(TXSLEW_VAL_GEN1, miphy_phy->base + TXBUF2_REG);
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
/* Force Macro1 in partial mode & release pll cal reset */
|
||||
writeb_relaxed(RST_RX, miphy_phy->base + RESET_REG);
|
||||
usleep_range(100, 150);
|
||||
|
||||
miphy365x_set_ssc(miphy_phy, miphy_dev);
|
||||
|
||||
/* Wait for phy_ready */
|
||||
ret = miphy365x_rdy(miphy_phy, miphy_dev);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
/*
|
||||
* Enable macro1 to use rx_lspd & tx_lspd
|
||||
* Release Rx_Clock on first I-DLL phase on macro1
|
||||
* Assert deserializer reset
|
||||
* des_bit_lock_en is set
|
||||
* bit lock detection strength
|
||||
* Deassert deserializer reset
|
||||
*/
|
||||
writeb_relaxed(0x00, miphy_phy->base + BOUNDARY1_REG);
|
||||
writeb_relaxed(0x00, miphy_phy->base + IDLL_TEST_REG);
|
||||
writeb_relaxed(RST_RX, miphy_phy->base + RESET_REG);
|
||||
val = miphy_phy->sata_tx_pol_inv ?
|
||||
(TX_POL | DES_BIT_LOCK_EN) : DES_BIT_LOCK_EN;
|
||||
writeb_relaxed(val, miphy_phy->base + CTRL_REG);
|
||||
|
||||
val = BIT_LOCK_CNT_512 | BIT_LOCK_LEVEL;
|
||||
writeb_relaxed(val, miphy_phy->base + DES_BITLOCK_REG);
|
||||
writeb_relaxed(0x00, miphy_phy->base + RESET_REG);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int miphy365x_init(struct phy *phy)
|
||||
{
|
||||
struct miphy365x_phy *miphy_phy = phy_get_drvdata(phy);
|
||||
struct miphy365x_dev *miphy_dev = dev_get_drvdata(phy->dev.parent);
|
||||
int ret = 0;
|
||||
|
||||
mutex_lock(&miphy_dev->miphy_mutex);
|
||||
|
||||
ret = miphy365x_set_path(miphy_phy, miphy_dev);
|
||||
if (ret) {
|
||||
mutex_unlock(&miphy_dev->miphy_mutex);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Initialise Miphy for PCIe or SATA */
|
||||
if (miphy_phy->type == PHY_TYPE_PCIE)
|
||||
ret = miphy365x_init_pcie_port(miphy_phy, miphy_dev);
|
||||
else
|
||||
ret = miphy365x_init_sata_port(miphy_phy, miphy_dev);
|
||||
|
||||
mutex_unlock(&miphy_dev->miphy_mutex);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int miphy365x_get_addr(struct device *dev,
|
||||
struct miphy365x_phy *miphy_phy, int index)
|
||||
{
|
||||
struct device_node *phynode = miphy_phy->phy->dev.of_node;
|
||||
const char *name;
|
||||
int type = miphy_phy->type;
|
||||
int ret;
|
||||
|
||||
ret = of_property_read_string_index(phynode, "reg-names", index, &name);
|
||||
if (ret) {
|
||||
dev_err(dev, "no reg-names property not found\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (!((!strncmp(name, "sata", 4) && type == PHY_TYPE_SATA) ||
|
||||
(!strncmp(name, "pcie", 4) && type == PHY_TYPE_PCIE)))
|
||||
return 0;
|
||||
|
||||
miphy_phy->base = of_iomap(phynode, index);
|
||||
if (!miphy_phy->base) {
|
||||
dev_err(dev, "Failed to map %s\n", phynode->full_name);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct phy *miphy365x_xlate(struct device *dev,
|
||||
struct of_phandle_args *args)
|
||||
{
|
||||
struct miphy365x_dev *miphy_dev = dev_get_drvdata(dev);
|
||||
struct miphy365x_phy *miphy_phy = NULL;
|
||||
struct device_node *phynode = args->np;
|
||||
int ret, index;
|
||||
|
||||
if (args->args_count != 1) {
|
||||
dev_err(dev, "Invalid number of cells in 'phy' property\n");
|
||||
return ERR_PTR(-EINVAL);
|
||||
}
|
||||
|
||||
for (index = 0; index < miphy_dev->nphys; index++)
|
||||
if (phynode == miphy_dev->phys[index]->phy->dev.of_node) {
|
||||
miphy_phy = miphy_dev->phys[index];
|
||||
break;
|
||||
}
|
||||
|
||||
if (!miphy_phy) {
|
||||
dev_err(dev, "Failed to find appropriate phy\n");
|
||||
return ERR_PTR(-EINVAL);
|
||||
}
|
||||
|
||||
miphy_phy->type = args->args[0];
|
||||
|
||||
if (!(miphy_phy->type == PHY_TYPE_SATA ||
|
||||
miphy_phy->type == PHY_TYPE_PCIE)) {
|
||||
dev_err(dev, "Unsupported device type: %d\n", miphy_phy->type);
|
||||
return ERR_PTR(-EINVAL);
|
||||
}
|
||||
|
||||
/* Each port handles SATA and PCIE - third entry is always sysconf. */
|
||||
for (index = 0; index < 3; index++) {
|
||||
ret = miphy365x_get_addr(dev, miphy_phy, index);
|
||||
if (ret < 0)
|
||||
return ERR_PTR(ret);
|
||||
}
|
||||
|
||||
return miphy_phy->phy;
|
||||
}
|
||||
|
||||
static const struct phy_ops miphy365x_ops = {
|
||||
.init = miphy365x_init,
|
||||
.owner = THIS_MODULE,
|
||||
};
|
||||
|
||||
static int miphy365x_of_probe(struct device_node *phynode,
|
||||
struct miphy365x_phy *miphy_phy)
|
||||
{
|
||||
of_property_read_u32(phynode, "st,sata-gen", &miphy_phy->sata_gen);
|
||||
if (!miphy_phy->sata_gen)
|
||||
miphy_phy->sata_gen = SATA_GEN1;
|
||||
|
||||
miphy_phy->pcie_tx_pol_inv =
|
||||
of_property_read_bool(phynode, "st,pcie-tx-pol-inv");
|
||||
|
||||
miphy_phy->sata_tx_pol_inv =
|
||||
of_property_read_bool(phynode, "st,sata-tx-pol-inv");
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int miphy365x_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct device_node *child, *np = pdev->dev.of_node;
|
||||
struct miphy365x_dev *miphy_dev;
|
||||
struct phy_provider *provider;
|
||||
struct phy *phy;
|
||||
int ret, port = 0;
|
||||
|
||||
miphy_dev = devm_kzalloc(&pdev->dev, sizeof(*miphy_dev), GFP_KERNEL);
|
||||
if (!miphy_dev)
|
||||
return -ENOMEM;
|
||||
|
||||
miphy_dev->nphys = of_get_child_count(np);
|
||||
miphy_dev->phys = devm_kcalloc(&pdev->dev, miphy_dev->nphys,
|
||||
sizeof(*miphy_dev->phys), GFP_KERNEL);
|
||||
if (!miphy_dev->phys)
|
||||
return -ENOMEM;
|
||||
|
||||
miphy_dev->regmap = syscon_regmap_lookup_by_phandle(np, "st,syscfg");
|
||||
if (IS_ERR(miphy_dev->regmap)) {
|
||||
dev_err(miphy_dev->dev, "No syscfg phandle specified\n");
|
||||
return PTR_ERR(miphy_dev->regmap);
|
||||
}
|
||||
|
||||
miphy_dev->dev = &pdev->dev;
|
||||
|
||||
dev_set_drvdata(&pdev->dev, miphy_dev);
|
||||
|
||||
mutex_init(&miphy_dev->miphy_mutex);
|
||||
|
||||
for_each_child_of_node(np, child) {
|
||||
struct miphy365x_phy *miphy_phy;
|
||||
|
||||
miphy_phy = devm_kzalloc(&pdev->dev, sizeof(*miphy_phy),
|
||||
GFP_KERNEL);
|
||||
if (!miphy_phy) {
|
||||
ret = -ENOMEM;
|
||||
goto put_child;
|
||||
}
|
||||
|
||||
miphy_dev->phys[port] = miphy_phy;
|
||||
|
||||
phy = devm_phy_create(&pdev->dev, child, &miphy365x_ops);
|
||||
if (IS_ERR(phy)) {
|
||||
dev_err(&pdev->dev, "failed to create PHY\n");
|
||||
ret = PTR_ERR(phy);
|
||||
goto put_child;
|
||||
}
|
||||
|
||||
miphy_dev->phys[port]->phy = phy;
|
||||
|
||||
ret = miphy365x_of_probe(child, miphy_phy);
|
||||
if (ret)
|
||||
goto put_child;
|
||||
|
||||
phy_set_drvdata(phy, miphy_dev->phys[port]);
|
||||
|
||||
port++;
|
||||
/* sysconfig offsets are indexed from 1 */
|
||||
ret = of_property_read_u32_index(np, "st,syscfg", port,
|
||||
&miphy_phy->ctrlreg);
|
||||
if (ret) {
|
||||
dev_err(&pdev->dev, "No sysconfig offset found\n");
|
||||
goto put_child;
|
||||
}
|
||||
}
|
||||
|
||||
provider = devm_of_phy_provider_register(&pdev->dev, miphy365x_xlate);
|
||||
return PTR_ERR_OR_ZERO(provider);
|
||||
put_child:
|
||||
of_node_put(child);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static const struct of_device_id miphy365x_of_match[] = {
|
||||
{ .compatible = "st,miphy365x-phy", },
|
||||
{ },
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, miphy365x_of_match);
|
||||
|
||||
static struct platform_driver miphy365x_driver = {
|
||||
.probe = miphy365x_probe,
|
||||
.driver = {
|
||||
.name = "miphy365x-phy",
|
||||
.of_match_table = miphy365x_of_match,
|
||||
}
|
||||
};
|
||||
module_platform_driver(miphy365x_driver);
|
||||
|
||||
MODULE_AUTHOR("Alexandre Torgue <alexandre.torgue@st.com>");
|
||||
MODULE_DESCRIPTION("STMicroelectronics miphy365x driver");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
@ -70,6 +70,7 @@
|
||||
#define USB2_LINECTRL1_DP_RPD BIT(18)
|
||||
#define USB2_LINECTRL1_DMRPD_EN BIT(17)
|
||||
#define USB2_LINECTRL1_DM_RPD BIT(16)
|
||||
#define USB2_LINECTRL1_OPMODE_NODRV BIT(6)
|
||||
|
||||
/* ADPCTRL */
|
||||
#define USB2_ADPCTRL_OTGSESSVLD BIT(20)
|
||||
@ -161,6 +162,43 @@ static void rcar_gen3_init_for_peri(struct rcar_gen3_chan *ch)
|
||||
schedule_work(&ch->work);
|
||||
}
|
||||
|
||||
static void rcar_gen3_init_for_b_host(struct rcar_gen3_chan *ch)
|
||||
{
|
||||
void __iomem *usb2_base = ch->base;
|
||||
u32 val;
|
||||
|
||||
val = readl(usb2_base + USB2_LINECTRL1);
|
||||
writel(val | USB2_LINECTRL1_OPMODE_NODRV, usb2_base + USB2_LINECTRL1);
|
||||
|
||||
rcar_gen3_set_linectrl(ch, 1, 1);
|
||||
rcar_gen3_set_host_mode(ch, 1);
|
||||
rcar_gen3_enable_vbus_ctrl(ch, 0);
|
||||
|
||||
val = readl(usb2_base + USB2_LINECTRL1);
|
||||
writel(val & ~USB2_LINECTRL1_OPMODE_NODRV, usb2_base + USB2_LINECTRL1);
|
||||
}
|
||||
|
||||
static void rcar_gen3_init_for_a_peri(struct rcar_gen3_chan *ch)
|
||||
{
|
||||
rcar_gen3_set_linectrl(ch, 0, 1);
|
||||
rcar_gen3_set_host_mode(ch, 0);
|
||||
rcar_gen3_enable_vbus_ctrl(ch, 1);
|
||||
}
|
||||
|
||||
static void rcar_gen3_init_from_a_peri_to_a_host(struct rcar_gen3_chan *ch)
|
||||
{
|
||||
void __iomem *usb2_base = ch->base;
|
||||
u32 val;
|
||||
|
||||
val = readl(usb2_base + USB2_OBINTEN);
|
||||
writel(val & ~USB2_OBINT_BITS, usb2_base + USB2_OBINTEN);
|
||||
|
||||
rcar_gen3_enable_vbus_ctrl(ch, 0);
|
||||
rcar_gen3_init_for_host(ch);
|
||||
|
||||
writel(val | USB2_OBINT_BITS, usb2_base + USB2_OBINTEN);
|
||||
}
|
||||
|
||||
static bool rcar_gen3_check_id(struct rcar_gen3_chan *ch)
|
||||
{
|
||||
return !!(readl(ch->base + USB2_ADPCTRL) & USB2_ADPCTRL_IDDIG);
|
||||
@ -174,6 +212,65 @@ static void rcar_gen3_device_recognition(struct rcar_gen3_chan *ch)
|
||||
rcar_gen3_init_for_peri(ch);
|
||||
}
|
||||
|
||||
static bool rcar_gen3_is_host(struct rcar_gen3_chan *ch)
|
||||
{
|
||||
return !(readl(ch->base + USB2_COMMCTRL) & USB2_COMMCTRL_OTG_PERI);
|
||||
}
|
||||
|
||||
static ssize_t role_store(struct device *dev, struct device_attribute *attr,
|
||||
const char *buf, size_t count)
|
||||
{
|
||||
struct rcar_gen3_chan *ch = dev_get_drvdata(dev);
|
||||
bool is_b_device, is_host, new_mode_is_host;
|
||||
|
||||
if (!ch->has_otg || !ch->phy->init_count)
|
||||
return -EIO;
|
||||
|
||||
/*
|
||||
* is_b_device: true is B-Device. false is A-Device.
|
||||
* If {new_mode_}is_host: true is Host mode. false is Peripheral mode.
|
||||
*/
|
||||
is_b_device = rcar_gen3_check_id(ch);
|
||||
is_host = rcar_gen3_is_host(ch);
|
||||
if (!strncmp(buf, "host", strlen("host")))
|
||||
new_mode_is_host = true;
|
||||
else if (!strncmp(buf, "peripheral", strlen("peripheral")))
|
||||
new_mode_is_host = false;
|
||||
else
|
||||
return -EINVAL;
|
||||
|
||||
/* If current and new mode is the same, this returns the error */
|
||||
if (is_host == new_mode_is_host)
|
||||
return -EINVAL;
|
||||
|
||||
if (new_mode_is_host) { /* And is_host must be false */
|
||||
if (!is_b_device) /* A-Peripheral */
|
||||
rcar_gen3_init_from_a_peri_to_a_host(ch);
|
||||
else /* B-Peripheral */
|
||||
rcar_gen3_init_for_b_host(ch);
|
||||
} else { /* And is_host must be true */
|
||||
if (!is_b_device) /* A-Host */
|
||||
rcar_gen3_init_for_a_peri(ch);
|
||||
else /* B-Host */
|
||||
rcar_gen3_init_for_peri(ch);
|
||||
}
|
||||
|
||||
return count;
|
||||
}
|
||||
|
||||
static ssize_t role_show(struct device *dev, struct device_attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct rcar_gen3_chan *ch = dev_get_drvdata(dev);
|
||||
|
||||
if (!ch->has_otg || !ch->phy->init_count)
|
||||
return -EIO;
|
||||
|
||||
return sprintf(buf, "%s\n", rcar_gen3_is_host(ch) ? "host" :
|
||||
"peripheral");
|
||||
}
|
||||
static DEVICE_ATTR_RW(role);
|
||||
|
||||
static void rcar_gen3_init_otg(struct rcar_gen3_chan *ch)
|
||||
{
|
||||
void __iomem *usb2_base = ch->base;
|
||||
@ -351,21 +448,40 @@ static int rcar_gen3_phy_usb2_probe(struct platform_device *pdev)
|
||||
channel->vbus = NULL;
|
||||
}
|
||||
|
||||
platform_set_drvdata(pdev, channel);
|
||||
phy_set_drvdata(channel->phy, channel);
|
||||
|
||||
provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
|
||||
if (IS_ERR(provider))
|
||||
if (IS_ERR(provider)) {
|
||||
dev_err(dev, "Failed to register PHY provider\n");
|
||||
} else if (channel->has_otg) {
|
||||
int ret;
|
||||
|
||||
ret = device_create_file(dev, &dev_attr_role);
|
||||
if (ret < 0)
|
||||
return ret;
|
||||
}
|
||||
|
||||
return PTR_ERR_OR_ZERO(provider);
|
||||
}
|
||||
|
||||
static int rcar_gen3_phy_usb2_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct rcar_gen3_chan *channel = platform_get_drvdata(pdev);
|
||||
|
||||
if (channel->has_otg)
|
||||
device_remove_file(&pdev->dev, &dev_attr_role);
|
||||
|
||||
return 0;
|
||||
};
|
||||
|
||||
static struct platform_driver rcar_gen3_phy_usb2_driver = {
|
||||
.driver = {
|
||||
.name = "phy_rcar_gen3_usb2",
|
||||
.of_match_table = rcar_gen3_phy_usb2_match_table,
|
||||
},
|
||||
.probe = rcar_gen3_phy_usb2_probe,
|
||||
.remove = rcar_gen3_phy_usb2_remove,
|
||||
};
|
||||
module_platform_driver(rcar_gen3_phy_usb2_driver);
|
||||
|
||||
|
||||
@ -132,7 +132,7 @@ static int rockchip_emmc_phy_power(struct phy *phy, bool on_off)
|
||||
default:
|
||||
ideal_rate = 200000000;
|
||||
break;
|
||||
};
|
||||
}
|
||||
|
||||
diff = (rate > ideal_rate) ?
|
||||
rate - ideal_rate : ideal_rate - rate;
|
||||
|
||||
@ -17,6 +17,7 @@
|
||||
#include <linux/clk.h>
|
||||
#include <linux/clk-provider.h>
|
||||
#include <linux/delay.h>
|
||||
#include <linux/extcon.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/gpio/consumer.h>
|
||||
@ -30,11 +31,15 @@
|
||||
#include <linux/of_platform.h>
|
||||
#include <linux/phy/phy.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/power_supply.h>
|
||||
#include <linux/regmap.h>
|
||||
#include <linux/mfd/syscon.h>
|
||||
#include <linux/usb/of.h>
|
||||
#include <linux/usb/otg.h>
|
||||
|
||||
#define BIT_WRITEABLE_SHIFT 16
|
||||
#define SCHEDULE_DELAY (60 * HZ)
|
||||
#define SCHEDULE_DELAY (60 * HZ)
|
||||
#define OTG_SCHEDULE_DELAY (2 * HZ)
|
||||
|
||||
enum rockchip_usb2phy_port_id {
|
||||
USB2PHY_PORT_OTG,
|
||||
@ -49,6 +54,37 @@ enum rockchip_usb2phy_host_state {
|
||||
PHY_STATE_FS_LS_ONLINE = 4,
|
||||
};
|
||||
|
||||
/**
|
||||
* Different states involved in USB charger detection.
|
||||
* USB_CHG_STATE_UNDEFINED USB charger is not connected or detection
|
||||
* process is not yet started.
|
||||
* USB_CHG_STATE_WAIT_FOR_DCD Waiting for Data pins contact.
|
||||
* USB_CHG_STATE_DCD_DONE Data pin contact is detected.
|
||||
* USB_CHG_STATE_PRIMARY_DONE Primary detection is completed (Detects
|
||||
* between SDP and DCP/CDP).
|
||||
* USB_CHG_STATE_SECONDARY_DONE Secondary detection is completed (Detects
|
||||
* between DCP and CDP).
|
||||
* USB_CHG_STATE_DETECTED USB charger type is determined.
|
||||
*/
|
||||
enum usb_chg_state {
|
||||
USB_CHG_STATE_UNDEFINED = 0,
|
||||
USB_CHG_STATE_WAIT_FOR_DCD,
|
||||
USB_CHG_STATE_DCD_DONE,
|
||||
USB_CHG_STATE_PRIMARY_DONE,
|
||||
USB_CHG_STATE_SECONDARY_DONE,
|
||||
USB_CHG_STATE_DETECTED,
|
||||
};
|
||||
|
||||
static const unsigned int rockchip_usb2phy_extcon_cable[] = {
|
||||
EXTCON_USB,
|
||||
EXTCON_USB_HOST,
|
||||
EXTCON_CHG_USB_SDP,
|
||||
EXTCON_CHG_USB_CDP,
|
||||
EXTCON_CHG_USB_DCP,
|
||||
EXTCON_CHG_USB_SLOW,
|
||||
EXTCON_NONE,
|
||||
};
|
||||
|
||||
struct usb2phy_reg {
|
||||
unsigned int offset;
|
||||
unsigned int bitend;
|
||||
@ -57,20 +93,56 @@ struct usb2phy_reg {
|
||||
unsigned int enable;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct rockchip_chg_det_reg: usb charger detect registers
|
||||
* @cp_det: charging port detected successfully.
|
||||
* @dcp_det: dedicated charging port detected successfully.
|
||||
* @dp_det: assert data pin connect successfully.
|
||||
* @idm_sink_en: open dm sink curren.
|
||||
* @idp_sink_en: open dp sink current.
|
||||
* @idp_src_en: open dm source current.
|
||||
* @rdm_pdwn_en: open dm pull down resistor.
|
||||
* @vdm_src_en: open dm voltage source.
|
||||
* @vdp_src_en: open dp voltage source.
|
||||
* @opmode: utmi operational mode.
|
||||
*/
|
||||
struct rockchip_chg_det_reg {
|
||||
struct usb2phy_reg cp_det;
|
||||
struct usb2phy_reg dcp_det;
|
||||
struct usb2phy_reg dp_det;
|
||||
struct usb2phy_reg idm_sink_en;
|
||||
struct usb2phy_reg idp_sink_en;
|
||||
struct usb2phy_reg idp_src_en;
|
||||
struct usb2phy_reg rdm_pdwn_en;
|
||||
struct usb2phy_reg vdm_src_en;
|
||||
struct usb2phy_reg vdp_src_en;
|
||||
struct usb2phy_reg opmode;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct rockchip_usb2phy_port_cfg: usb-phy port configuration.
|
||||
* @phy_sus: phy suspend register.
|
||||
* @bvalid_det_en: vbus valid rise detection enable register.
|
||||
* @bvalid_det_st: vbus valid rise detection status register.
|
||||
* @bvalid_det_clr: vbus valid rise detection clear register.
|
||||
* @ls_det_en: linestate detection enable register.
|
||||
* @ls_det_st: linestate detection state register.
|
||||
* @ls_det_clr: linestate detection clear register.
|
||||
* @utmi_avalid: utmi vbus avalid status register.
|
||||
* @utmi_bvalid: utmi vbus bvalid status register.
|
||||
* @utmi_ls: utmi linestate state register.
|
||||
* @utmi_hstdet: utmi host disconnect register.
|
||||
*/
|
||||
struct rockchip_usb2phy_port_cfg {
|
||||
struct usb2phy_reg phy_sus;
|
||||
struct usb2phy_reg bvalid_det_en;
|
||||
struct usb2phy_reg bvalid_det_st;
|
||||
struct usb2phy_reg bvalid_det_clr;
|
||||
struct usb2phy_reg ls_det_en;
|
||||
struct usb2phy_reg ls_det_st;
|
||||
struct usb2phy_reg ls_det_clr;
|
||||
struct usb2phy_reg utmi_avalid;
|
||||
struct usb2phy_reg utmi_bvalid;
|
||||
struct usb2phy_reg utmi_ls;
|
||||
struct usb2phy_reg utmi_hstdet;
|
||||
};
|
||||
@ -80,31 +152,51 @@ struct rockchip_usb2phy_port_cfg {
|
||||
* @reg: the address offset of grf for usb-phy config.
|
||||
* @num_ports: specify how many ports that the phy has.
|
||||
* @clkout_ctl: keep on/turn off output clk of phy.
|
||||
* @chg_det: charger detection registers.
|
||||
*/
|
||||
struct rockchip_usb2phy_cfg {
|
||||
unsigned int reg;
|
||||
unsigned int num_ports;
|
||||
struct usb2phy_reg clkout_ctl;
|
||||
const struct rockchip_usb2phy_port_cfg port_cfgs[USB2PHY_NUM_PORTS];
|
||||
const struct rockchip_chg_det_reg chg_det;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct rockchip_usb2phy_port: usb-phy port data.
|
||||
* @port_id: flag for otg port or host port.
|
||||
* @suspended: phy suspended flag.
|
||||
* @utmi_avalid: utmi avalid status usage flag.
|
||||
* true - use avalid to get vbus status
|
||||
* flase - use bvalid to get vbus status
|
||||
* @vbus_attached: otg device vbus status.
|
||||
* @bvalid_irq: IRQ number assigned for vbus valid rise detection.
|
||||
* @ls_irq: IRQ number assigned for linestate detection.
|
||||
* @mutex: for register updating in sm_work.
|
||||
* @sm_work: OTG state machine work.
|
||||
* @chg_work: charge detect work.
|
||||
* @otg_sm_work: OTG state machine work.
|
||||
* @sm_work: HOST state machine work.
|
||||
* @phy_cfg: port register configuration, assigned by driver data.
|
||||
* @event_nb: hold event notification callback.
|
||||
* @state: define OTG enumeration states before device reset.
|
||||
* @mode: the dr_mode of the controller.
|
||||
*/
|
||||
struct rockchip_usb2phy_port {
|
||||
struct phy *phy;
|
||||
unsigned int port_id;
|
||||
bool suspended;
|
||||
bool utmi_avalid;
|
||||
bool vbus_attached;
|
||||
int bvalid_irq;
|
||||
int ls_irq;
|
||||
struct mutex mutex;
|
||||
struct delayed_work chg_work;
|
||||
struct delayed_work otg_sm_work;
|
||||
struct delayed_work sm_work;
|
||||
const struct rockchip_usb2phy_port_cfg *port_cfg;
|
||||
struct notifier_block event_nb;
|
||||
enum usb_otg_state state;
|
||||
enum usb_dr_mode mode;
|
||||
};
|
||||
|
||||
/**
|
||||
@ -113,6 +205,11 @@ struct rockchip_usb2phy_port {
|
||||
* @clk: clock struct of phy input clk.
|
||||
* @clk480m: clock struct of phy output clk.
|
||||
* @clk_hw: clock struct of phy output clk management.
|
||||
* @chg_state: states involved in USB charger detection.
|
||||
* @chg_type: USB charger types.
|
||||
* @dcd_retries: The retry count used to track Data contact
|
||||
* detection process.
|
||||
* @edev: extcon device for notification registration
|
||||
* @phy_cfg: phy register configuration, assigned by driver data.
|
||||
* @ports: phy port instance.
|
||||
*/
|
||||
@ -122,6 +219,10 @@ struct rockchip_usb2phy {
|
||||
struct clk *clk;
|
||||
struct clk *clk480m;
|
||||
struct clk_hw clk480m_hw;
|
||||
enum usb_chg_state chg_state;
|
||||
enum power_supply_type chg_type;
|
||||
u8 dcd_retries;
|
||||
struct extcon_dev *edev;
|
||||
const struct rockchip_usb2phy_cfg *phy_cfg;
|
||||
struct rockchip_usb2phy_port ports[USB2PHY_NUM_PORTS];
|
||||
};
|
||||
@ -153,7 +254,7 @@ static inline bool property_enabled(struct rockchip_usb2phy *rphy,
|
||||
return tmp == reg->enable;
|
||||
}
|
||||
|
||||
static int rockchip_usb2phy_clk480m_enable(struct clk_hw *hw)
|
||||
static int rockchip_usb2phy_clk480m_prepare(struct clk_hw *hw)
|
||||
{
|
||||
struct rockchip_usb2phy *rphy =
|
||||
container_of(hw, struct rockchip_usb2phy, clk480m_hw);
|
||||
@ -165,14 +266,14 @@ static int rockchip_usb2phy_clk480m_enable(struct clk_hw *hw)
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
/* waitting for the clk become stable */
|
||||
mdelay(1);
|
||||
/* waiting for the clk become stable */
|
||||
usleep_range(1200, 1300);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void rockchip_usb2phy_clk480m_disable(struct clk_hw *hw)
|
||||
static void rockchip_usb2phy_clk480m_unprepare(struct clk_hw *hw)
|
||||
{
|
||||
struct rockchip_usb2phy *rphy =
|
||||
container_of(hw, struct rockchip_usb2phy, clk480m_hw);
|
||||
@ -181,7 +282,7 @@ static void rockchip_usb2phy_clk480m_disable(struct clk_hw *hw)
|
||||
property_enable(rphy, &rphy->phy_cfg->clkout_ctl, false);
|
||||
}
|
||||
|
||||
static int rockchip_usb2phy_clk480m_enabled(struct clk_hw *hw)
|
||||
static int rockchip_usb2phy_clk480m_prepared(struct clk_hw *hw)
|
||||
{
|
||||
struct rockchip_usb2phy *rphy =
|
||||
container_of(hw, struct rockchip_usb2phy, clk480m_hw);
|
||||
@ -197,9 +298,9 @@ rockchip_usb2phy_clk480m_recalc_rate(struct clk_hw *hw,
|
||||
}
|
||||
|
||||
static const struct clk_ops rockchip_usb2phy_clkout_ops = {
|
||||
.enable = rockchip_usb2phy_clk480m_enable,
|
||||
.disable = rockchip_usb2phy_clk480m_disable,
|
||||
.is_enabled = rockchip_usb2phy_clk480m_enabled,
|
||||
.prepare = rockchip_usb2phy_clk480m_prepare,
|
||||
.unprepare = rockchip_usb2phy_clk480m_unprepare,
|
||||
.is_prepared = rockchip_usb2phy_clk480m_prepared,
|
||||
.recalc_rate = rockchip_usb2phy_clk480m_recalc_rate,
|
||||
};
|
||||
|
||||
@ -263,33 +364,84 @@ err_ret:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int rockchip_usb2phy_extcon_register(struct rockchip_usb2phy *rphy)
|
||||
{
|
||||
int ret;
|
||||
struct device_node *node = rphy->dev->of_node;
|
||||
struct extcon_dev *edev;
|
||||
|
||||
if (of_property_read_bool(node, "extcon")) {
|
||||
edev = extcon_get_edev_by_phandle(rphy->dev, 0);
|
||||
if (IS_ERR(edev)) {
|
||||
if (PTR_ERR(edev) != -EPROBE_DEFER)
|
||||
dev_err(rphy->dev, "Invalid or missing extcon\n");
|
||||
return PTR_ERR(edev);
|
||||
}
|
||||
} else {
|
||||
/* Initialize extcon device */
|
||||
edev = devm_extcon_dev_allocate(rphy->dev,
|
||||
rockchip_usb2phy_extcon_cable);
|
||||
|
||||
if (IS_ERR(edev))
|
||||
return -ENOMEM;
|
||||
|
||||
ret = devm_extcon_dev_register(rphy->dev, edev);
|
||||
if (ret) {
|
||||
dev_err(rphy->dev, "failed to register extcon device\n");
|
||||
return ret;
|
||||
}
|
||||
}
|
||||
|
||||
rphy->edev = edev;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int rockchip_usb2phy_init(struct phy *phy)
|
||||
{
|
||||
struct rockchip_usb2phy_port *rport = phy_get_drvdata(phy);
|
||||
struct rockchip_usb2phy *rphy = dev_get_drvdata(phy->dev.parent);
|
||||
int ret;
|
||||
int ret = 0;
|
||||
|
||||
if (rport->port_id == USB2PHY_PORT_HOST) {
|
||||
/* clear linestate and enable linestate detect irq */
|
||||
mutex_lock(&rport->mutex);
|
||||
mutex_lock(&rport->mutex);
|
||||
|
||||
ret = property_enable(rphy, &rport->port_cfg->ls_det_clr, true);
|
||||
if (ret) {
|
||||
mutex_unlock(&rport->mutex);
|
||||
return ret;
|
||||
if (rport->port_id == USB2PHY_PORT_OTG) {
|
||||
if (rport->mode != USB_DR_MODE_HOST) {
|
||||
/* clear bvalid status and enable bvalid detect irq */
|
||||
ret = property_enable(rphy,
|
||||
&rport->port_cfg->bvalid_det_clr,
|
||||
true);
|
||||
if (ret)
|
||||
goto out;
|
||||
|
||||
ret = property_enable(rphy,
|
||||
&rport->port_cfg->bvalid_det_en,
|
||||
true);
|
||||
if (ret)
|
||||
goto out;
|
||||
|
||||
schedule_delayed_work(&rport->otg_sm_work,
|
||||
OTG_SCHEDULE_DELAY);
|
||||
} else {
|
||||
/* If OTG works in host only mode, do nothing. */
|
||||
dev_dbg(&rport->phy->dev, "mode %d\n", rport->mode);
|
||||
}
|
||||
} else if (rport->port_id == USB2PHY_PORT_HOST) {
|
||||
/* clear linestate and enable linestate detect irq */
|
||||
ret = property_enable(rphy, &rport->port_cfg->ls_det_clr, true);
|
||||
if (ret)
|
||||
goto out;
|
||||
|
||||
ret = property_enable(rphy, &rport->port_cfg->ls_det_en, true);
|
||||
if (ret) {
|
||||
mutex_unlock(&rport->mutex);
|
||||
return ret;
|
||||
}
|
||||
if (ret)
|
||||
goto out;
|
||||
|
||||
mutex_unlock(&rport->mutex);
|
||||
schedule_delayed_work(&rport->sm_work, SCHEDULE_DELAY);
|
||||
}
|
||||
|
||||
return 0;
|
||||
out:
|
||||
mutex_unlock(&rport->mutex);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int rockchip_usb2phy_power_on(struct phy *phy)
|
||||
@ -340,7 +492,11 @@ static int rockchip_usb2phy_exit(struct phy *phy)
|
||||
{
|
||||
struct rockchip_usb2phy_port *rport = phy_get_drvdata(phy);
|
||||
|
||||
if (rport->port_id == USB2PHY_PORT_HOST)
|
||||
if (rport->port_id == USB2PHY_PORT_OTG &&
|
||||
rport->mode != USB_DR_MODE_HOST) {
|
||||
cancel_delayed_work_sync(&rport->otg_sm_work);
|
||||
cancel_delayed_work_sync(&rport->chg_work);
|
||||
} else if (rport->port_id == USB2PHY_PORT_HOST)
|
||||
cancel_delayed_work_sync(&rport->sm_work);
|
||||
|
||||
return 0;
|
||||
@ -354,6 +510,249 @@ static const struct phy_ops rockchip_usb2phy_ops = {
|
||||
.owner = THIS_MODULE,
|
||||
};
|
||||
|
||||
static void rockchip_usb2phy_otg_sm_work(struct work_struct *work)
|
||||
{
|
||||
struct rockchip_usb2phy_port *rport =
|
||||
container_of(work, struct rockchip_usb2phy_port,
|
||||
otg_sm_work.work);
|
||||
struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent);
|
||||
static unsigned int cable;
|
||||
unsigned long delay;
|
||||
bool vbus_attach, sch_work, notify_charger;
|
||||
|
||||
if (rport->utmi_avalid)
|
||||
vbus_attach =
|
||||
property_enabled(rphy, &rport->port_cfg->utmi_avalid);
|
||||
else
|
||||
vbus_attach =
|
||||
property_enabled(rphy, &rport->port_cfg->utmi_bvalid);
|
||||
|
||||
sch_work = false;
|
||||
notify_charger = false;
|
||||
delay = OTG_SCHEDULE_DELAY;
|
||||
dev_dbg(&rport->phy->dev, "%s otg sm work\n",
|
||||
usb_otg_state_string(rport->state));
|
||||
|
||||
switch (rport->state) {
|
||||
case OTG_STATE_UNDEFINED:
|
||||
rport->state = OTG_STATE_B_IDLE;
|
||||
if (!vbus_attach)
|
||||
rockchip_usb2phy_power_off(rport->phy);
|
||||
/* fall through */
|
||||
case OTG_STATE_B_IDLE:
|
||||
if (extcon_get_cable_state_(rphy->edev, EXTCON_USB_HOST) > 0) {
|
||||
dev_dbg(&rport->phy->dev, "usb otg host connect\n");
|
||||
rport->state = OTG_STATE_A_HOST;
|
||||
rockchip_usb2phy_power_on(rport->phy);
|
||||
return;
|
||||
} else if (vbus_attach) {
|
||||
dev_dbg(&rport->phy->dev, "vbus_attach\n");
|
||||
switch (rphy->chg_state) {
|
||||
case USB_CHG_STATE_UNDEFINED:
|
||||
schedule_delayed_work(&rport->chg_work, 0);
|
||||
return;
|
||||
case USB_CHG_STATE_DETECTED:
|
||||
switch (rphy->chg_type) {
|
||||
case POWER_SUPPLY_TYPE_USB:
|
||||
dev_dbg(&rport->phy->dev,
|
||||
"sdp cable is connecetd\n");
|
||||
rockchip_usb2phy_power_on(rport->phy);
|
||||
rport->state = OTG_STATE_B_PERIPHERAL;
|
||||
notify_charger = true;
|
||||
sch_work = true;
|
||||
cable = EXTCON_CHG_USB_SDP;
|
||||
break;
|
||||
case POWER_SUPPLY_TYPE_USB_DCP:
|
||||
dev_dbg(&rport->phy->dev,
|
||||
"dcp cable is connecetd\n");
|
||||
rockchip_usb2phy_power_off(rport->phy);
|
||||
notify_charger = true;
|
||||
sch_work = true;
|
||||
cable = EXTCON_CHG_USB_DCP;
|
||||
break;
|
||||
case POWER_SUPPLY_TYPE_USB_CDP:
|
||||
dev_dbg(&rport->phy->dev,
|
||||
"cdp cable is connecetd\n");
|
||||
rockchip_usb2phy_power_on(rport->phy);
|
||||
rport->state = OTG_STATE_B_PERIPHERAL;
|
||||
notify_charger = true;
|
||||
sch_work = true;
|
||||
cable = EXTCON_CHG_USB_CDP;
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
notify_charger = true;
|
||||
rphy->chg_state = USB_CHG_STATE_UNDEFINED;
|
||||
rphy->chg_type = POWER_SUPPLY_TYPE_UNKNOWN;
|
||||
}
|
||||
|
||||
if (rport->vbus_attached != vbus_attach) {
|
||||
rport->vbus_attached = vbus_attach;
|
||||
|
||||
if (notify_charger && rphy->edev)
|
||||
extcon_set_cable_state_(rphy->edev,
|
||||
cable, vbus_attach);
|
||||
}
|
||||
break;
|
||||
case OTG_STATE_B_PERIPHERAL:
|
||||
if (!vbus_attach) {
|
||||
dev_dbg(&rport->phy->dev, "usb disconnect\n");
|
||||
rphy->chg_state = USB_CHG_STATE_UNDEFINED;
|
||||
rphy->chg_type = POWER_SUPPLY_TYPE_UNKNOWN;
|
||||
rport->state = OTG_STATE_B_IDLE;
|
||||
delay = 0;
|
||||
rockchip_usb2phy_power_off(rport->phy);
|
||||
}
|
||||
sch_work = true;
|
||||
break;
|
||||
case OTG_STATE_A_HOST:
|
||||
if (extcon_get_cable_state_(rphy->edev, EXTCON_USB_HOST) == 0) {
|
||||
dev_dbg(&rport->phy->dev, "usb otg host disconnect\n");
|
||||
rport->state = OTG_STATE_B_IDLE;
|
||||
rockchip_usb2phy_power_off(rport->phy);
|
||||
}
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
if (sch_work)
|
||||
schedule_delayed_work(&rport->otg_sm_work, delay);
|
||||
}
|
||||
|
||||
static const char *chg_to_string(enum power_supply_type chg_type)
|
||||
{
|
||||
switch (chg_type) {
|
||||
case POWER_SUPPLY_TYPE_USB:
|
||||
return "USB_SDP_CHARGER";
|
||||
case POWER_SUPPLY_TYPE_USB_DCP:
|
||||
return "USB_DCP_CHARGER";
|
||||
case POWER_SUPPLY_TYPE_USB_CDP:
|
||||
return "USB_CDP_CHARGER";
|
||||
default:
|
||||
return "INVALID_CHARGER";
|
||||
}
|
||||
}
|
||||
|
||||
static void rockchip_chg_enable_dcd(struct rockchip_usb2phy *rphy,
|
||||
bool en)
|
||||
{
|
||||
property_enable(rphy, &rphy->phy_cfg->chg_det.rdm_pdwn_en, en);
|
||||
property_enable(rphy, &rphy->phy_cfg->chg_det.idp_src_en, en);
|
||||
}
|
||||
|
||||
static void rockchip_chg_enable_primary_det(struct rockchip_usb2phy *rphy,
|
||||
bool en)
|
||||
{
|
||||
property_enable(rphy, &rphy->phy_cfg->chg_det.vdp_src_en, en);
|
||||
property_enable(rphy, &rphy->phy_cfg->chg_det.idm_sink_en, en);
|
||||
}
|
||||
|
||||
static void rockchip_chg_enable_secondary_det(struct rockchip_usb2phy *rphy,
|
||||
bool en)
|
||||
{
|
||||
property_enable(rphy, &rphy->phy_cfg->chg_det.vdm_src_en, en);
|
||||
property_enable(rphy, &rphy->phy_cfg->chg_det.idp_sink_en, en);
|
||||
}
|
||||
|
||||
#define CHG_DCD_POLL_TIME (100 * HZ / 1000)
|
||||
#define CHG_DCD_MAX_RETRIES 6
|
||||
#define CHG_PRIMARY_DET_TIME (40 * HZ / 1000)
|
||||
#define CHG_SECONDARY_DET_TIME (40 * HZ / 1000)
|
||||
static void rockchip_chg_detect_work(struct work_struct *work)
|
||||
{
|
||||
struct rockchip_usb2phy_port *rport =
|
||||
container_of(work, struct rockchip_usb2phy_port, chg_work.work);
|
||||
struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent);
|
||||
bool is_dcd, tmout, vout;
|
||||
unsigned long delay;
|
||||
|
||||
dev_dbg(&rport->phy->dev, "chg detection work state = %d\n",
|
||||
rphy->chg_state);
|
||||
switch (rphy->chg_state) {
|
||||
case USB_CHG_STATE_UNDEFINED:
|
||||
if (!rport->suspended)
|
||||
rockchip_usb2phy_power_off(rport->phy);
|
||||
/* put the controller in non-driving mode */
|
||||
property_enable(rphy, &rphy->phy_cfg->chg_det.opmode, false);
|
||||
/* Start DCD processing stage 1 */
|
||||
rockchip_chg_enable_dcd(rphy, true);
|
||||
rphy->chg_state = USB_CHG_STATE_WAIT_FOR_DCD;
|
||||
rphy->dcd_retries = 0;
|
||||
delay = CHG_DCD_POLL_TIME;
|
||||
break;
|
||||
case USB_CHG_STATE_WAIT_FOR_DCD:
|
||||
/* get data contact detection status */
|
||||
is_dcd = property_enabled(rphy, &rphy->phy_cfg->chg_det.dp_det);
|
||||
tmout = ++rphy->dcd_retries == CHG_DCD_MAX_RETRIES;
|
||||
/* stage 2 */
|
||||
if (is_dcd || tmout) {
|
||||
/* stage 4 */
|
||||
/* Turn off DCD circuitry */
|
||||
rockchip_chg_enable_dcd(rphy, false);
|
||||
/* Voltage Source on DP, Probe on DM */
|
||||
rockchip_chg_enable_primary_det(rphy, true);
|
||||
delay = CHG_PRIMARY_DET_TIME;
|
||||
rphy->chg_state = USB_CHG_STATE_DCD_DONE;
|
||||
} else {
|
||||
/* stage 3 */
|
||||
delay = CHG_DCD_POLL_TIME;
|
||||
}
|
||||
break;
|
||||
case USB_CHG_STATE_DCD_DONE:
|
||||
vout = property_enabled(rphy, &rphy->phy_cfg->chg_det.cp_det);
|
||||
rockchip_chg_enable_primary_det(rphy, false);
|
||||
if (vout) {
|
||||
/* Voltage Source on DM, Probe on DP */
|
||||
rockchip_chg_enable_secondary_det(rphy, true);
|
||||
delay = CHG_SECONDARY_DET_TIME;
|
||||
rphy->chg_state = USB_CHG_STATE_PRIMARY_DONE;
|
||||
} else {
|
||||
if (rphy->dcd_retries == CHG_DCD_MAX_RETRIES) {
|
||||
/* floating charger found */
|
||||
rphy->chg_type = POWER_SUPPLY_TYPE_USB_DCP;
|
||||
rphy->chg_state = USB_CHG_STATE_DETECTED;
|
||||
delay = 0;
|
||||
} else {
|
||||
rphy->chg_type = POWER_SUPPLY_TYPE_USB;
|
||||
rphy->chg_state = USB_CHG_STATE_DETECTED;
|
||||
delay = 0;
|
||||
}
|
||||
}
|
||||
break;
|
||||
case USB_CHG_STATE_PRIMARY_DONE:
|
||||
vout = property_enabled(rphy, &rphy->phy_cfg->chg_det.dcp_det);
|
||||
/* Turn off voltage source */
|
||||
rockchip_chg_enable_secondary_det(rphy, false);
|
||||
if (vout)
|
||||
rphy->chg_type = POWER_SUPPLY_TYPE_USB_DCP;
|
||||
else
|
||||
rphy->chg_type = POWER_SUPPLY_TYPE_USB_CDP;
|
||||
/* fall through */
|
||||
case USB_CHG_STATE_SECONDARY_DONE:
|
||||
rphy->chg_state = USB_CHG_STATE_DETECTED;
|
||||
delay = 0;
|
||||
/* fall through */
|
||||
case USB_CHG_STATE_DETECTED:
|
||||
/* put the controller in normal mode */
|
||||
property_enable(rphy, &rphy->phy_cfg->chg_det.opmode, true);
|
||||
rockchip_usb2phy_otg_sm_work(&rport->otg_sm_work.work);
|
||||
dev_info(&rport->phy->dev, "charger = %s\n",
|
||||
chg_to_string(rphy->chg_type));
|
||||
return;
|
||||
default:
|
||||
return;
|
||||
}
|
||||
|
||||
schedule_delayed_work(&rport->chg_work, delay);
|
||||
}
|
||||
|
||||
/*
|
||||
* The function manage host-phy port state and suspend/resume phy port
|
||||
* to save power.
|
||||
@ -485,6 +884,26 @@ static irqreturn_t rockchip_usb2phy_linestate_irq(int irq, void *data)
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static irqreturn_t rockchip_usb2phy_bvalid_irq(int irq, void *data)
|
||||
{
|
||||
struct rockchip_usb2phy_port *rport = data;
|
||||
struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent);
|
||||
|
||||
if (!property_enabled(rphy, &rport->port_cfg->bvalid_det_st))
|
||||
return IRQ_NONE;
|
||||
|
||||
mutex_lock(&rport->mutex);
|
||||
|
||||
/* clear bvalid detect irq pending status */
|
||||
property_enable(rphy, &rport->port_cfg->bvalid_det_clr, true);
|
||||
|
||||
mutex_unlock(&rport->mutex);
|
||||
|
||||
rockchip_usb2phy_otg_sm_work(&rport->otg_sm_work.work);
|
||||
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static int rockchip_usb2phy_host_port_init(struct rockchip_usb2phy *rphy,
|
||||
struct rockchip_usb2phy_port *rport,
|
||||
struct device_node *child_np)
|
||||
@ -509,13 +928,86 @@ static int rockchip_usb2phy_host_port_init(struct rockchip_usb2phy *rphy,
|
||||
IRQF_ONESHOT,
|
||||
"rockchip_usb2phy", rport);
|
||||
if (ret) {
|
||||
dev_err(rphy->dev, "failed to request irq handle\n");
|
||||
dev_err(rphy->dev, "failed to request linestate irq handle\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int rockchip_otg_event(struct notifier_block *nb,
|
||||
unsigned long event, void *ptr)
|
||||
{
|
||||
struct rockchip_usb2phy_port *rport =
|
||||
container_of(nb, struct rockchip_usb2phy_port, event_nb);
|
||||
|
||||
schedule_delayed_work(&rport->otg_sm_work, OTG_SCHEDULE_DELAY);
|
||||
|
||||
return NOTIFY_DONE;
|
||||
}
|
||||
|
||||
static int rockchip_usb2phy_otg_port_init(struct rockchip_usb2phy *rphy,
|
||||
struct rockchip_usb2phy_port *rport,
|
||||
struct device_node *child_np)
|
||||
{
|
||||
int ret;
|
||||
|
||||
rport->port_id = USB2PHY_PORT_OTG;
|
||||
rport->port_cfg = &rphy->phy_cfg->port_cfgs[USB2PHY_PORT_OTG];
|
||||
rport->state = OTG_STATE_UNDEFINED;
|
||||
|
||||
/*
|
||||
* set suspended flag to true, but actually don't
|
||||
* put phy in suspend mode, it aims to enable usb
|
||||
* phy and clock in power_on() called by usb controller
|
||||
* driver during probe.
|
||||
*/
|
||||
rport->suspended = true;
|
||||
rport->vbus_attached = false;
|
||||
|
||||
mutex_init(&rport->mutex);
|
||||
|
||||
rport->mode = of_usb_get_dr_mode_by_phy(child_np, -1);
|
||||
if (rport->mode == USB_DR_MODE_HOST) {
|
||||
ret = 0;
|
||||
goto out;
|
||||
}
|
||||
|
||||
INIT_DELAYED_WORK(&rport->chg_work, rockchip_chg_detect_work);
|
||||
INIT_DELAYED_WORK(&rport->otg_sm_work, rockchip_usb2phy_otg_sm_work);
|
||||
|
||||
rport->utmi_avalid =
|
||||
of_property_read_bool(child_np, "rockchip,utmi-avalid");
|
||||
|
||||
rport->bvalid_irq = of_irq_get_byname(child_np, "otg-bvalid");
|
||||
if (rport->bvalid_irq < 0) {
|
||||
dev_err(rphy->dev, "no vbus valid irq provided\n");
|
||||
ret = rport->bvalid_irq;
|
||||
goto out;
|
||||
}
|
||||
|
||||
ret = devm_request_threaded_irq(rphy->dev, rport->bvalid_irq, NULL,
|
||||
rockchip_usb2phy_bvalid_irq,
|
||||
IRQF_ONESHOT,
|
||||
"rockchip_usb2phy_bvalid", rport);
|
||||
if (ret) {
|
||||
dev_err(rphy->dev, "failed to request otg-bvalid irq handle\n");
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (!IS_ERR(rphy->edev)) {
|
||||
rport->event_nb.notifier_call = rockchip_otg_event;
|
||||
|
||||
ret = extcon_register_notifier(rphy->edev, EXTCON_USB_HOST,
|
||||
&rport->event_nb);
|
||||
if (ret)
|
||||
dev_err(rphy->dev, "register USB HOST notifier failed\n");
|
||||
}
|
||||
|
||||
out:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int rockchip_usb2phy_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct device *dev = &pdev->dev;
|
||||
@ -553,8 +1045,14 @@ static int rockchip_usb2phy_probe(struct platform_device *pdev)
|
||||
|
||||
rphy->dev = dev;
|
||||
phy_cfgs = match->data;
|
||||
rphy->chg_state = USB_CHG_STATE_UNDEFINED;
|
||||
rphy->chg_type = POWER_SUPPLY_TYPE_UNKNOWN;
|
||||
platform_set_drvdata(pdev, rphy);
|
||||
|
||||
ret = rockchip_usb2phy_extcon_register(rphy);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
/* find out a proper config which can be matched with dt. */
|
||||
index = 0;
|
||||
while (phy_cfgs[index].reg) {
|
||||
@ -591,13 +1089,9 @@ static int rockchip_usb2phy_probe(struct platform_device *pdev)
|
||||
struct rockchip_usb2phy_port *rport = &rphy->ports[index];
|
||||
struct phy *phy;
|
||||
|
||||
/*
|
||||
* This driver aim to support both otg-port and host-port,
|
||||
* but unfortunately, the otg part is not ready in current,
|
||||
* so this comments and below codes are interim, which should
|
||||
* be changed after otg-port is supplied soon.
|
||||
*/
|
||||
if (of_node_cmp(child_np->name, "host-port"))
|
||||
/* This driver aims to support both otg-port and host-port */
|
||||
if (of_node_cmp(child_np->name, "host-port") &&
|
||||
of_node_cmp(child_np->name, "otg-port"))
|
||||
goto next_child;
|
||||
|
||||
phy = devm_phy_create(dev, child_np, &rockchip_usb2phy_ops);
|
||||
@ -610,9 +1104,18 @@ static int rockchip_usb2phy_probe(struct platform_device *pdev)
|
||||
rport->phy = phy;
|
||||
phy_set_drvdata(rport->phy, rport);
|
||||
|
||||
ret = rockchip_usb2phy_host_port_init(rphy, rport, child_np);
|
||||
if (ret)
|
||||
goto put_child;
|
||||
/* initialize otg/host port separately */
|
||||
if (!of_node_cmp(child_np->name, "host-port")) {
|
||||
ret = rockchip_usb2phy_host_port_init(rphy, rport,
|
||||
child_np);
|
||||
if (ret)
|
||||
goto put_child;
|
||||
} else {
|
||||
ret = rockchip_usb2phy_otg_port_init(rphy, rport,
|
||||
child_np);
|
||||
if (ret)
|
||||
goto put_child;
|
||||
}
|
||||
|
||||
next_child:
|
||||
/* to prevent out of boundary */
|
||||
@ -654,10 +1157,18 @@ static const struct rockchip_usb2phy_cfg rk3366_phy_cfgs[] = {
|
||||
|
||||
static const struct rockchip_usb2phy_cfg rk3399_phy_cfgs[] = {
|
||||
{
|
||||
.reg = 0xe450,
|
||||
.reg = 0xe450,
|
||||
.num_ports = 2,
|
||||
.clkout_ctl = { 0xe450, 4, 4, 1, 0 },
|
||||
.port_cfgs = {
|
||||
[USB2PHY_PORT_OTG] = {
|
||||
.phy_sus = { 0xe454, 1, 0, 2, 1 },
|
||||
.bvalid_det_en = { 0xe3c0, 3, 3, 0, 1 },
|
||||
.bvalid_det_st = { 0xe3e0, 3, 3, 0, 1 },
|
||||
.bvalid_det_clr = { 0xe3d0, 3, 3, 0, 1 },
|
||||
.utmi_avalid = { 0xe2ac, 7, 7, 0, 1 },
|
||||
.utmi_bvalid = { 0xe2ac, 12, 12, 0, 1 },
|
||||
},
|
||||
[USB2PHY_PORT_HOST] = {
|
||||
.phy_sus = { 0xe458, 1, 0, 0x2, 0x1 },
|
||||
.ls_det_en = { 0xe3c0, 6, 6, 0, 1 },
|
||||
@ -667,12 +1178,32 @@ static const struct rockchip_usb2phy_cfg rk3399_phy_cfgs[] = {
|
||||
.utmi_hstdet = { 0xe2ac, 23, 23, 0, 1 }
|
||||
}
|
||||
},
|
||||
.chg_det = {
|
||||
.opmode = { 0xe454, 3, 0, 5, 1 },
|
||||
.cp_det = { 0xe2ac, 2, 2, 0, 1 },
|
||||
.dcp_det = { 0xe2ac, 1, 1, 0, 1 },
|
||||
.dp_det = { 0xe2ac, 0, 0, 0, 1 },
|
||||
.idm_sink_en = { 0xe450, 8, 8, 0, 1 },
|
||||
.idp_sink_en = { 0xe450, 7, 7, 0, 1 },
|
||||
.idp_src_en = { 0xe450, 9, 9, 0, 1 },
|
||||
.rdm_pdwn_en = { 0xe450, 10, 10, 0, 1 },
|
||||
.vdm_src_en = { 0xe450, 12, 12, 0, 1 },
|
||||
.vdp_src_en = { 0xe450, 11, 11, 0, 1 },
|
||||
},
|
||||
},
|
||||
{
|
||||
.reg = 0xe460,
|
||||
.reg = 0xe460,
|
||||
.num_ports = 2,
|
||||
.clkout_ctl = { 0xe460, 4, 4, 1, 0 },
|
||||
.port_cfgs = {
|
||||
[USB2PHY_PORT_OTG] = {
|
||||
.phy_sus = { 0xe464, 1, 0, 2, 1 },
|
||||
.bvalid_det_en = { 0xe3c0, 8, 8, 0, 1 },
|
||||
.bvalid_det_st = { 0xe3e0, 8, 8, 0, 1 },
|
||||
.bvalid_det_clr = { 0xe3d0, 8, 8, 0, 1 },
|
||||
.utmi_avalid = { 0xe2ac, 10, 10, 0, 1 },
|
||||
.utmi_bvalid = { 0xe2ac, 16, 16, 0, 1 },
|
||||
},
|
||||
[USB2PHY_PORT_HOST] = {
|
||||
.phy_sus = { 0xe468, 1, 0, 0x2, 0x1 },
|
||||
.ls_det_en = { 0xe3c0, 11, 11, 0, 1 },
|
||||
|
||||
@ -103,7 +103,7 @@ static void s5pv210_isol(struct samsung_usb2_phy_instance *inst, bool on)
|
||||
break;
|
||||
default:
|
||||
return;
|
||||
};
|
||||
}
|
||||
|
||||
regmap_update_bits(drv->reg_pmu, S5PV210_USB_ISOL_OFFSET,
|
||||
mask, on ? 0 : mask);
|
||||
@ -127,7 +127,7 @@ static void s5pv210_phy_pwr(struct samsung_usb2_phy_instance *inst, bool on)
|
||||
rstbits = S5PV210_URSTCON_PHY1_ALL |
|
||||
S5PV210_URSTCON_HOST_LINK_ALL;
|
||||
break;
|
||||
};
|
||||
}
|
||||
|
||||
if (on) {
|
||||
writel(drv->ref_reg_val, drv->reg_phy + S5PV210_UPHYCLK);
|
||||
|
||||
@ -1,188 +0,0 @@
|
||||
/*
|
||||
* Copyright (C) 2014 STMicroelectronics
|
||||
*
|
||||
* STMicroelectronics PHY driver for STiH41x USB.
|
||||
*
|
||||
* Author: Maxime Coquelin <maxime.coquelin@st.com>
|
||||
*
|
||||
* 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/platform_device.h>
|
||||
#include <linux/io.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/of_platform.h>
|
||||
#include <linux/clk.h>
|
||||
#include <linux/phy/phy.h>
|
||||
#include <linux/regmap.h>
|
||||
#include <linux/mfd/syscon.h>
|
||||
|
||||
#define SYSCFG332 0x80
|
||||
#define SYSCFG2520 0x820
|
||||
|
||||
/**
|
||||
* struct stih41x_usb_cfg - SoC specific PHY register mapping
|
||||
* @syscfg: Offset in syscfg registers bank
|
||||
* @cfg_mask: Bits mask for PHY configuration
|
||||
* @cfg: Static configuration value for PHY
|
||||
* @oscok: Notify the PHY oscillator clock is ready
|
||||
* Setting this bit enable the PHY
|
||||
*/
|
||||
struct stih41x_usb_cfg {
|
||||
u32 syscfg;
|
||||
u32 cfg_mask;
|
||||
u32 cfg;
|
||||
u32 oscok;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct stih41x_usb_phy - Private data for the PHY
|
||||
* @dev: device for this controller
|
||||
* @regmap: Syscfg registers bank in which PHY is configured
|
||||
* @cfg: SoC specific PHY register mapping
|
||||
* @clk: Oscillator used by the PHY
|
||||
*/
|
||||
struct stih41x_usb_phy {
|
||||
struct device *dev;
|
||||
struct regmap *regmap;
|
||||
const struct stih41x_usb_cfg *cfg;
|
||||
struct clk *clk;
|
||||
};
|
||||
|
||||
static struct stih41x_usb_cfg stih415_usb_phy_cfg = {
|
||||
.syscfg = SYSCFG332,
|
||||
.cfg_mask = 0x3f,
|
||||
.cfg = 0x38,
|
||||
.oscok = BIT(6),
|
||||
};
|
||||
|
||||
static struct stih41x_usb_cfg stih416_usb_phy_cfg = {
|
||||
.syscfg = SYSCFG2520,
|
||||
.cfg_mask = 0x33f,
|
||||
.cfg = 0x238,
|
||||
.oscok = BIT(6),
|
||||
};
|
||||
|
||||
static int stih41x_usb_phy_init(struct phy *phy)
|
||||
{
|
||||
struct stih41x_usb_phy *phy_dev = phy_get_drvdata(phy);
|
||||
|
||||
return regmap_update_bits(phy_dev->regmap, phy_dev->cfg->syscfg,
|
||||
phy_dev->cfg->cfg_mask, phy_dev->cfg->cfg);
|
||||
}
|
||||
|
||||
static int stih41x_usb_phy_power_on(struct phy *phy)
|
||||
{
|
||||
struct stih41x_usb_phy *phy_dev = phy_get_drvdata(phy);
|
||||
int ret;
|
||||
|
||||
ret = clk_prepare_enable(phy_dev->clk);
|
||||
if (ret) {
|
||||
dev_err(phy_dev->dev, "Failed to enable osc_phy clock\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = regmap_update_bits(phy_dev->regmap, phy_dev->cfg->syscfg,
|
||||
phy_dev->cfg->oscok, phy_dev->cfg->oscok);
|
||||
if (ret)
|
||||
clk_disable_unprepare(phy_dev->clk);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int stih41x_usb_phy_power_off(struct phy *phy)
|
||||
{
|
||||
struct stih41x_usb_phy *phy_dev = phy_get_drvdata(phy);
|
||||
int ret;
|
||||
|
||||
ret = regmap_update_bits(phy_dev->regmap, phy_dev->cfg->syscfg,
|
||||
phy_dev->cfg->oscok, 0);
|
||||
if (ret) {
|
||||
dev_err(phy_dev->dev, "Failed to clear oscok bit\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
clk_disable_unprepare(phy_dev->clk);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct phy_ops stih41x_usb_phy_ops = {
|
||||
.init = stih41x_usb_phy_init,
|
||||
.power_on = stih41x_usb_phy_power_on,
|
||||
.power_off = stih41x_usb_phy_power_off,
|
||||
.owner = THIS_MODULE,
|
||||
};
|
||||
|
||||
static const struct of_device_id stih41x_usb_phy_of_match[];
|
||||
|
||||
static int stih41x_usb_phy_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct device_node *np = pdev->dev.of_node;
|
||||
const struct of_device_id *match;
|
||||
struct stih41x_usb_phy *phy_dev;
|
||||
struct device *dev = &pdev->dev;
|
||||
struct phy_provider *phy_provider;
|
||||
struct phy *phy;
|
||||
|
||||
phy_dev = devm_kzalloc(dev, sizeof(*phy_dev), GFP_KERNEL);
|
||||
if (!phy_dev)
|
||||
return -ENOMEM;
|
||||
|
||||
match = of_match_device(stih41x_usb_phy_of_match, &pdev->dev);
|
||||
if (!match)
|
||||
return -ENODEV;
|
||||
|
||||
phy_dev->cfg = match->data;
|
||||
|
||||
phy_dev->regmap = syscon_regmap_lookup_by_phandle(np, "st,syscfg");
|
||||
if (IS_ERR(phy_dev->regmap)) {
|
||||
dev_err(dev, "No syscfg phandle specified\n");
|
||||
return PTR_ERR(phy_dev->regmap);
|
||||
}
|
||||
|
||||
phy_dev->clk = devm_clk_get(dev, "osc_phy");
|
||||
if (IS_ERR(phy_dev->clk)) {
|
||||
dev_err(dev, "osc_phy clk not found\n");
|
||||
return PTR_ERR(phy_dev->clk);
|
||||
}
|
||||
|
||||
phy = devm_phy_create(dev, NULL, &stih41x_usb_phy_ops);
|
||||
|
||||
if (IS_ERR(phy)) {
|
||||
dev_err(dev, "failed to create phy\n");
|
||||
return PTR_ERR(phy);
|
||||
}
|
||||
|
||||
phy_dev->dev = dev;
|
||||
|
||||
phy_set_drvdata(phy, phy_dev);
|
||||
|
||||
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 stih41x_usb_phy_of_match[] = {
|
||||
{ .compatible = "st,stih415-usb-phy", .data = &stih415_usb_phy_cfg },
|
||||
{ .compatible = "st,stih416-usb-phy", .data = &stih416_usb_phy_cfg },
|
||||
{ /* sentinel */ },
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, stih41x_usb_phy_of_match);
|
||||
|
||||
static struct platform_driver stih41x_usb_phy_driver = {
|
||||
.probe = stih41x_usb_phy_probe,
|
||||
.driver = {
|
||||
.name = "stih41x-usb-phy",
|
||||
.of_match_table = stih41x_usb_phy_of_match,
|
||||
}
|
||||
};
|
||||
module_platform_driver(stih41x_usb_phy_driver);
|
||||
|
||||
MODULE_AUTHOR("Maxime Coquelin <maxime.coquelin@st.com>");
|
||||
MODULE_DESCRIPTION("STMicroelectronics USB PHY driver for STiH41x series");
|
||||
MODULE_LICENSE("GPL v2");
|
||||
@ -436,25 +436,31 @@ static int sun4i_usb_phy_set_mode(struct phy *_phy, enum phy_mode mode)
|
||||
{
|
||||
struct sun4i_usb_phy *phy = phy_get_drvdata(_phy);
|
||||
struct sun4i_usb_phy_data *data = to_sun4i_usb_phy_data(phy);
|
||||
int new_mode;
|
||||
|
||||
if (phy->index != 0)
|
||||
return -EINVAL;
|
||||
|
||||
switch (mode) {
|
||||
case PHY_MODE_USB_HOST:
|
||||
data->dr_mode = USB_DR_MODE_HOST;
|
||||
new_mode = USB_DR_MODE_HOST;
|
||||
break;
|
||||
case PHY_MODE_USB_DEVICE:
|
||||
data->dr_mode = USB_DR_MODE_PERIPHERAL;
|
||||
new_mode = USB_DR_MODE_PERIPHERAL;
|
||||
break;
|
||||
case PHY_MODE_USB_OTG:
|
||||
data->dr_mode = USB_DR_MODE_OTG;
|
||||
new_mode = USB_DR_MODE_OTG;
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
dev_info(&_phy->dev, "Changing dr_mode to %d\n", (int)data->dr_mode);
|
||||
if (new_mode != data->dr_mode) {
|
||||
dev_info(&_phy->dev, "Changing dr_mode to %d\n", new_mode);
|
||||
data->dr_mode = new_mode;
|
||||
}
|
||||
|
||||
data->id_det = -1; /* Force reprocessing of id */
|
||||
data->force_session_end = true;
|
||||
queue_delayed_work(system_wq, &data->detect, 0);
|
||||
|
||||
|
||||
@ -537,10 +537,7 @@ static int ti_pipe3_get_pll_base(struct ti_pipe3 *phy)
|
||||
res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
|
||||
"pll_ctrl");
|
||||
phy->pll_ctrl_base = devm_ioremap_resource(dev, res);
|
||||
if (IS_ERR(phy->pll_ctrl_base))
|
||||
return PTR_ERR(phy->pll_ctrl_base);
|
||||
|
||||
return 0;
|
||||
return PTR_ERR_OR_ZERO(phy->pll_ctrl_base);
|
||||
}
|
||||
|
||||
static int ti_pipe3_probe(struct platform_device *pdev)
|
||||
@ -592,10 +589,7 @@ static int ti_pipe3_probe(struct platform_device *pdev)
|
||||
ti_pipe3_power_off(generic_phy);
|
||||
|
||||
phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
|
||||
if (IS_ERR(phy_provider))
|
||||
return PTR_ERR(phy_provider);
|
||||
|
||||
return 0;
|
||||
return PTR_ERR_OR_ZERO(phy_provider);
|
||||
}
|
||||
|
||||
static int ti_pipe3_remove(struct platform_device *pdev)
|
||||
|
||||
@ -317,6 +317,9 @@ static enum musb_vbus_id_status
|
||||
linkstat = MUSB_VBUS_OFF;
|
||||
}
|
||||
|
||||
kobject_uevent(&twl->dev->kobj, linkstat == MUSB_VBUS_VALID
|
||||
? KOBJ_ONLINE : KOBJ_OFFLINE);
|
||||
|
||||
dev_dbg(twl->dev, "HW_CONDITIONS 0x%02x/%d; link %d\n",
|
||||
status, status, linkstat);
|
||||
|
||||
|
||||
@ -1483,7 +1483,6 @@ static int tegra124_usb3_port_enable(struct tegra_xusb_port *port)
|
||||
struct tegra_xusb_padctl *padctl = port->padctl;
|
||||
struct tegra_xusb_lane *lane = usb3->base.lane;
|
||||
unsigned int index = port->index, offset;
|
||||
int ret = 0;
|
||||
u32 value;
|
||||
|
||||
value = padctl_readl(padctl, XUSB_PADCTL_SS_PORT_MAP);
|
||||
@ -1612,7 +1611,7 @@ static int tegra124_usb3_port_enable(struct tegra_xusb_port *port)
|
||||
value &= ~XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN(index);
|
||||
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
|
||||
|
||||
return ret;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void tegra124_usb3_port_disable(struct tegra_xusb_port *port)
|
||||
|
||||
@ -561,10 +561,7 @@ static int tegra_xusb_usb2_port_parse_dt(struct tegra_xusb_usb2_port *usb2)
|
||||
usb2->internal = of_property_read_bool(np, "nvidia,internal");
|
||||
|
||||
usb2->supply = devm_regulator_get(&port->dev, "vbus");
|
||||
if (IS_ERR(usb2->supply))
|
||||
return PTR_ERR(usb2->supply);
|
||||
|
||||
return 0;
|
||||
return PTR_ERR_OR_ZERO(usb2->supply);
|
||||
}
|
||||
|
||||
static int tegra_xusb_add_usb2_port(struct tegra_xusb_padctl *padctl,
|
||||
@ -731,10 +728,7 @@ static int tegra_xusb_usb3_port_parse_dt(struct tegra_xusb_usb3_port *usb3)
|
||||
usb3->internal = of_property_read_bool(np, "nvidia,internal");
|
||||
|
||||
usb3->supply = devm_regulator_get(&port->dev, "vbus");
|
||||
if (IS_ERR(usb3->supply))
|
||||
return PTR_ERR(usb3->supply);
|
||||
|
||||
return 0;
|
||||
return PTR_ERR_OR_ZERO(usb3->supply);
|
||||
}
|
||||
|
||||
static int tegra_xusb_add_usb3_port(struct tegra_xusb_padctl *padctl,
|
||||
|
||||
Loading…
Reference in New Issue
Block a user