From: John Crispin Date: Mon, 4 Jan 2016 14:21:17 +0000 (+0000) Subject: ralink: update the usb phy driver to the version sent upstream X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=eb9fccc4404763192782a65aecd89baa280c276a;p=openwrt%2Fstaging%2Fmans0n.git ralink: update the usb phy driver to the version sent upstream Signed-off-by: John Crispin SVN-Revision: 48114 --- diff --git a/target/linux/ramips/dts/mt7620a.dtsi b/target/linux/ramips/dts/mt7620a.dtsi index 5ee47e1e6a..5edbdf9a90 100644 --- a/target/linux/ramips/dts/mt7620a.dtsi +++ b/target/linux/ramips/dts/mt7620a.dtsi @@ -396,7 +396,7 @@ }; usbphy: usbphy { - compatible = "ralink,mt7620a-usbphy"; + compatible = "mediatek,mt7620-usbphy"; #phy-cells = <1>; resets = <&rstctrl 22 &rstctrl 25>; diff --git a/target/linux/ramips/dts/mt7620n.dtsi b/target/linux/ramips/dts/mt7620n.dtsi index f64b68930e..e8ce3b2372 100644 --- a/target/linux/ramips/dts/mt7620n.dtsi +++ b/target/linux/ramips/dts/mt7620n.dtsi @@ -255,7 +255,7 @@ }; usbphy: usbphy { - compatible = "ralink,mt7620a-usbphy"; + compatible = "mediatek,mt7620-usbphy"; #phy-cells = <1>; resets = <&rstctrl 22 &rstctrl 25>; diff --git a/target/linux/ramips/dts/mt7628an.dtsi b/target/linux/ramips/dts/mt7628an.dtsi index 95d192be1b..03507eb5c5 100644 --- a/target/linux/ramips/dts/mt7628an.dtsi +++ b/target/linux/ramips/dts/mt7628an.dtsi @@ -341,11 +341,11 @@ }; usbphy: usbphy { - compatible = "ralink,mt7628an-usbphy", "ralink,mt7620a-usbphy"; + compatible = "ralink,mt7628an-usbphy", "mediatek,mt7620-usbphy"; #phy-cells = <1>; - resets = <&rstctrl 22>; - reset-names = "host"; + resets = <&rstctrl 22 &rstctrl 25>; + reset-names = "host", "device"; }; sdhci@10130000 { diff --git a/target/linux/ramips/dts/rt3352.dtsi b/target/linux/ramips/dts/rt3352.dtsi index f19bd24d20..cfa0db67c0 100644 --- a/target/linux/ramips/dts/rt3352.dtsi +++ b/target/linux/ramips/dts/rt3352.dtsi @@ -253,7 +253,7 @@ }; usbphy { - compatible = "ralink,rt3xxx-usbphy"; + compatible = "ralink,rt3352-usbphy"; resets = <&rstctrl 22 &rstctrl 25>; reset-names = "host", "device"; diff --git a/target/linux/ramips/dts/rt3883.dtsi b/target/linux/ramips/dts/rt3883.dtsi index 30d47fa994..cd96b74bc7 100644 --- a/target/linux/ramips/dts/rt3883.dtsi +++ b/target/linux/ramips/dts/rt3883.dtsi @@ -358,7 +358,7 @@ }; usbphy: usbphy { - compatible = "ralink,rt3xxx-usbphy"; + compatible = "ralink,rt3352-usbphy"; #phy-cells = <1>; resets = <&rstctrl 22 &rstctrl 25>; diff --git a/target/linux/ramips/dts/rt5350.dtsi b/target/linux/ramips/dts/rt5350.dtsi index c6ff3d6c9d..27f7bf64ad 100644 --- a/target/linux/ramips/dts/rt5350.dtsi +++ b/target/linux/ramips/dts/rt5350.dtsi @@ -270,7 +270,7 @@ }; usbphy: usbphy { - compatible = "ralink,rt3xxx-usbphy"; + compatible = "ralink,rt3352-usbphy"; #phy-cells = <1>; resets = <&rstctrl 22 &rstctrl 25>; diff --git a/target/linux/ramips/patches-4.3/0029-phy-usb-add-ralink-phy.patch b/target/linux/ramips/patches-4.3/0029-phy-usb-add-ralink-phy.patch index 8534da3439..f511b8838e 100644 --- a/target/linux/ramips/patches-4.3/0029-phy-usb-add-ralink-phy.patch +++ b/target/linux/ramips/patches-4.3/0029-phy-usb-add-ralink-phy.patch @@ -1,19 +1,44 @@ -From a10fc0cb650be725157eca50e2ceb34efc281ac2 Mon Sep 17 00:00:00 2001 +From b00b5eafa7e8d059bd0ce844e66f648916953270 Mon Sep 17 00:00:00 2001 From: John Crispin -Date: Mon, 22 Apr 2013 23:20:03 +0200 -Subject: [PATCH 29/53] phy: usb: add ralink phy +Date: Sun, 3 Jan 2016 19:11:22 +0100 +Subject: [PATCH 2/3] phy: ralink-usb: add driver for Mediatek/Ralink + +Add a driver to setup the USB phy on Mediatek/Ralink SoCs. +The driver is trivial and only sets up power and host mode. Signed-off-by: John Crispin --- - drivers/phy/Kconfig | 5 ++ - drivers/phy/Makefile | 1 + - drivers/phy/phy-ralink-usb.c | 175 ++++++++++++++++++++++++++++++++++++++++++ - 3 files changed, 181 insertions(+) + .../devicetree/bindings/phy/ralink-usb-phy.txt | 17 ++ + drivers/phy/Kconfig | 8 + + drivers/phy/Makefile | 1 + + drivers/phy/phy-ralink-usb.c | 171 ++++++++++++++++++++ + 4 files changed, 197 insertions(+) + create mode 100644 Documentation/devicetree/bindings/phy/ralink-usb-phy.txt create mode 100644 drivers/phy/phy-ralink-usb.c +--- /dev/null ++++ b/Documentation/devicetree/bindings/phy/ralink-usb-phy.txt +@@ -0,0 +1,17 @@ ++Mediatek/Ralink USB PHY ++ ++Required properties: ++ - compatible: ralink,rt3352-usbphy or mediatek,mt7620-usbphy ++ - #phy-cells: should be 0 ++ - resets: the two reset controllers for host and device ++ - reset-names: the names of the 2 reset controllers ++ ++Example: ++ ++usbphy: phy { ++ compatible = "mediatek,mt7620-usbphy"; ++ #phy-cells = <0>; ++ ++ resets = <&rstctrl 22 &rstctrl 25>; ++ reset-names = "host", "device"; ++}; --- a/drivers/phy/Kconfig +++ b/drivers/phy/Kconfig -@@ -331,6 +331,11 @@ config PHY_XGENE +@@ -331,6 +331,14 @@ help This option enables support for APM X-Gene SoC multi-purpose PHY. @@ -21,13 +46,16 @@ Signed-off-by: John Crispin + tristate "Ralink USB PHY driver" + select GENERIC_PHY + depends on RALINK ++ help ++ This option enables support for the Ralink USB PHY found inside ++ RT3352 and MT7620. + config PHY_STIH407_USB tristate "STMicroelectronics USB2 picoPHY driver for STiH407 family" depends on RESET_CONTROLLER --- a/drivers/phy/Makefile +++ b/drivers/phy/Makefile -@@ -46,3 +46,4 @@ obj-$(CONFIG_PHY_QCOM_UFS) += phy-qcom- +@@ -46,3 +46,4 @@ obj-$(CONFIG_PHY_TUSB1210) += phy-tusb1210.o obj-$(CONFIG_PHY_BRCMSTB_SATA) += phy-brcmstb-sata.o obj-$(CONFIG_PHY_PISTACHIO_USB) += phy-pistachio-usb.o @@ -38,7 +66,7 @@ Signed-off-by: John Crispin +/* + * Allwinner ralink USB phy driver + * -+ * Copyright (C) 2014 John Crispin ++ * Copyright (C) 2016 John Crispin + * + * Based on code from + * Allwinner Technology Co., Ltd. @@ -83,94 +111,76 @@ Signed-off-by: John Crispin +#define USB_PHY_UTMI_8B60M BIT(1) +#define UDEV_WAKEUP BIT(0) + -+static atomic_t usb_pwr_ref = ATOMIC_INIT(0); -+static struct reset_control *rstdev; -+static struct reset_control *rsthost; -+static u32 phy_clk; -+static struct phy *rt_phy; ++struct ralink_usb_phy { ++ struct reset_control *rstdev; ++ struct reset_control *rsthost; ++ u32 clk; ++ struct phy *phy; ++}; + -+static void usb_phy_enable(int state) ++static int ralink_usb_phy_power_on(struct phy *_phy) +{ -+ if (state) -+ rt_sysc_m32(0, phy_clk, RT_SYSC_REG_CLKCFG1); ++ struct ralink_usb_phy *phy = phy_get_drvdata(_phy); ++ u32 t; ++ ++ /* enable the phy */ ++ rt_sysc_m32(0, phy->clk, RT_SYSC_REG_CLKCFG1); ++ ++ /* setup host mode */ ++ rt_sysc_m32(0, RT_SYSCFG1_USB0_HOST_MODE, RT_SYSC_REG_SYSCFG1); ++ ++ /* deassert the reset lines */ ++ reset_control_deassert(phy->rsthost); ++ reset_control_deassert(phy->rstdev); ++ ++ /* ++ * The SDK kernel had a delay of 100ms. however on device ++ * testing showed that 10ms is enough ++ */ ++ mdelay(10); ++ ++ /* print some status info */ ++ t = rt_sysc_r32(RT_SYSC_REG_USB_PHY_CFG); ++ dev_info(&phy->phy->dev, "remote usb device wakeup %s\n", ++ (t & UDEV_WAKEUP) ? ("enabled") : ("disabled")); ++ if (t & USB_PHY_UTMI_8B60M) ++ dev_info(&phy->phy->dev, "UTMI 8bit 60MHz\n"); + else -+ rt_sysc_m32(phy_clk, 0, RT_SYSC_REG_CLKCFG1); -+ mdelay(100); -+} -+ -+static int ralink_usb_phy_init(struct phy *_phy) -+{ -+ return 0; -+} ++ dev_info(&phy->phy->dev, "UTMI 16bit 30MHz\n"); + -+static int ralink_usb_phy_exit(struct phy *_phy) -+{ + return 0; +} + -+static int ralink_usb_phy_power_on(struct phy *_phy) ++static int ralink_usb_phy_power_off(struct phy *_phy) +{ -+ if (atomic_inc_return(&usb_pwr_ref) == 1) { -+ int host = 1; -+ u32 t; -+ -+ usb_phy_enable(1); -+ -+ if (host) { -+ rt_sysc_m32(0, RT_SYSCFG1_USB0_HOST_MODE, RT_SYSC_REG_SYSCFG1); -+ if (!IS_ERR(rsthost)) -+ reset_control_deassert(rsthost); -+ if (!IS_ERR(rstdev)) -+ reset_control_deassert(rstdev); -+ } else { -+ rt_sysc_m32(RT_SYSCFG1_USB0_HOST_MODE, 0, RT_SYSC_REG_SYSCFG1); -+ if (!IS_ERR(rstdev)) -+ reset_control_deassert(rstdev); -+ } -+ mdelay(100); -+ -+ t = rt_sysc_r32(RT_SYSC_REG_USB_PHY_CFG); -+ dev_info(&_phy->dev, "remote usb device wakeup %s\n", -+ (t & UDEV_WAKEUP) ? ("enabbled") : ("disabled")); -+ if (t & USB_PHY_UTMI_8B60M) -+ dev_info(&_phy->dev, "UTMI 8bit 60MHz\n"); -+ else -+ dev_info(&_phy->dev, "UTMI 16bit 30MHz\n"); -+ } ++ struct ralink_usb_phy *phy = phy_get_drvdata(_phy); + -+ return 0; -+} ++ /* disable the phy */ ++ rt_sysc_m32(phy->clk, 0, RT_SYSC_REG_CLKCFG1); + -+static int ralink_usb_phy_power_off(struct phy *_phy) -+{ -+ if (atomic_dec_return(&usb_pwr_ref) == 0) { -+ usb_phy_enable(0); -+ if (!IS_ERR(rstdev)) -+ reset_control_assert(rstdev); -+ if (!IS_ERR(rsthost)) -+ reset_control_assert(rsthost); -+ } ++ /* assert the reset lines */ ++ reset_control_assert(phy->rstdev); ++ reset_control_assert(phy->rsthost); + + return 0; +} + +static struct phy_ops ralink_usb_phy_ops = { -+ .init = ralink_usb_phy_init, -+ .exit = ralink_usb_phy_exit, + .power_on = ralink_usb_phy_power_on, + .power_off = ralink_usb_phy_power_off, + .owner = THIS_MODULE, +}; + -+static struct phy *ralink_usb_phy_xlate(struct device *dev, -+ struct of_phandle_args *args) -+{ -+ return rt_phy; -+} -+ +static const struct of_device_id ralink_usb_phy_of_match[] = { -+ { .compatible = "ralink,rt3xxx-usbphy", .data = (void *) (RT_CLKCFG1_UPHY1_CLK_EN | RT_CLKCFG1_UPHY0_CLK_EN) }, -+ { .compatible = "ralink,mt7620a-usbphy", .data = (void *) (MT7620_CLKCFG1_UPHY1_CLK_EN | MT7620_CLKCFG1_UPHY0_CLK_EN) }, ++ { ++ .compatible = "ralink,rt3352-usbphy", ++ .data = (void *) (RT_CLKCFG1_UPHY1_CLK_EN | ++ RT_CLKCFG1_UPHY0_CLK_EN) ++ }, ++ { ++ .compatible = "mediatek,mt7620-usbphy", ++ .data = (void *) (MT7620_CLKCFG1_UPHY1_CLK_EN | ++ MT7620_CLKCFG1_UPHY0_CLK_EN) }, + { }, +}; +MODULE_DEVICE_TABLE(of, ralink_usb_phy_of_match); @@ -180,20 +190,38 @@ Signed-off-by: John Crispin + struct device *dev = &pdev->dev; + struct phy_provider *phy_provider; + const struct of_device_id *match; ++ struct ralink_usb_phy *phy; ++ ++ phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL); ++ if (!phy) ++ return -ENOMEM; + + match = of_match_device(ralink_usb_phy_of_match, &pdev->dev); -+ phy_clk = (int) match->data; ++ if (!match) ++ return -ENODEV; ++ ++ phy->clk = (int) match->data; + -+ rsthost = devm_reset_control_get(&pdev->dev, "host"); -+ rstdev = devm_reset_control_get(&pdev->dev, "device"); ++ phy->rsthost = devm_reset_control_get(&pdev->dev, "host"); ++ if (IS_ERR(phy->rsthost)) { ++ dev_err(dev, "host reset is missing\n"); ++ return PTR_ERR(phy->rsthost); ++ } ++ ++ phy->rstdev = devm_reset_control_get(&pdev->dev, "device"); ++ if (IS_ERR(phy->rstdev)) { ++ dev_err(dev, "device reset is missing\n"); ++ return PTR_ERR(phy->rstdev); ++ } + -+ rt_phy = devm_phy_create(dev, NULL, &ralink_usb_phy_ops); -+ if (IS_ERR(rt_phy)) { ++ phy->phy = devm_phy_create(dev, NULL, &ralink_usb_phy_ops); ++ if (IS_ERR(phy->phy)) { + dev_err(dev, "failed to create PHY\n"); -+ return PTR_ERR(rt_phy); ++ return PTR_ERR(phy->phy); + } ++ phy_set_drvdata(phy->phy, phy); + -+ phy_provider = devm_of_phy_provider_register(dev, ralink_usb_phy_xlate); ++ phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); + + return PTR_ERR_OR_ZERO(phy_provider); +}