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Wed, 16 Sep 2020 12:31:13 +0000 From: peng.fan@nxp.com To: sbabic@denx.de, marex@denx.de Cc: uboot-imx@nxp.com, u-boot@lists.denx.de, Peng Fan , Ye Li Subject: [PATCH 03/13] usb: ehci-mx6: Add i.MX8 OTG controller support Date: Wed, 16 Sep 2020 20:56:55 +0800 Message-Id: <20200916125705.4341-4-peng.fan@nxp.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200916125705.4341-1-peng.fan@nxp.com> References: <20200916125705.4341-1-peng.fan@nxp.com> X-ClientProxiedBy: SGBP274CA0023.SGPP274.PROD.OUTLOOK.COM (2603:1096:4:b0::35) To DB6PR0402MB2760.eurprd04.prod.outlook.com (2603:10a6:4:a1::14) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from linux-1xn6.ap.freescale.net (119.31.174.71) by SGBP274CA0023.SGPP274.PROD.OUTLOOK.COM (2603:1096:4:b0::35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3391.13 via Frontend Transport; Wed, 16 Sep 2020 12:31:11 +0000 X-Mailer: git-send-email 2.28.0 X-Originating-IP: [119.31.174.71] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 4a6510a0-a407-4ef7-57a1-08d85a3c65fe X-MS-TrafficTypeDiagnostic: DB7PR04MB4762: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:4941; 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The USBOH reuses previous i.MX6/7. It has same PHY IP as i.MX7ULP but NC registers are same as i.MX7D. So add its support in ehci-mx6 driver. Signed-off-by: Ye Li Signed-off-by: Peng Fan --- arch/arm/include/asm/arch-imx8/clock.h | 8 ++++ drivers/usb/host/Kconfig | 4 +- drivers/usb/host/ehci-mx6.c | 61 +++++++++++++++++++++++--- 3 files changed, 66 insertions(+), 7 deletions(-) -- 2.28.0 diff --git a/arch/arm/include/asm/arch-imx8/clock.h b/arch/arm/include/asm/arch-imx8/clock.h index bea157171f..55475f2bc4 100644 --- a/arch/arm/include/asm/arch-imx8/clock.h +++ b/arch/arm/include/asm/arch-imx8/clock.h @@ -24,4 +24,12 @@ enum mxc_clock { u32 mxc_get_clock(enum mxc_clock clk); +#define PLL_USB_EN_USB_CLKS_MASK (1 << 6) +#define PLL_USB_PWR_MASK (1 << 12) +#define PLL_USB_ENABLE_MASK (1 << 13) +#define PLL_USB_BYPASS_MASK (1 << 16) +#define PLL_USB_REG_ENABLE_MASK (1 << 21) +#define PLL_USB_DIV_SEL_MASK (7 << 22) +#define PLL_USB_LOCK_MASK (1 << 31) + #endif /* __ASM_ARCH_IMX8_CLOCK_H__ */ diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 1c374a7bd8..f48547caa0 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -139,8 +139,8 @@ config USB_EHCI_MX5 Enables support for the on-chip EHCI controller on i.MX5 SoCs. config USB_EHCI_MX6 - bool "Support for i.MX6/i.MX7ULP on-chip EHCI USB controller" - depends on ARCH_MX6 || ARCH_MX7ULP + bool "Support for i.MX6/i.MX7ULP/i.MX8 on-chip EHCI USB controller" + depends on ARCH_MX6 || ARCH_MX7ULP || ARCH_IMX8 default y ---help--- Enables support for the on-chip EHCI controller on i.MX6 SoCs. diff --git a/drivers/usb/host/ehci-mx6.c b/drivers/usb/host/ehci-mx6.c index 4b8b3087ec..b1721cd915 100644 --- a/drivers/usb/host/ehci-mx6.c +++ b/drivers/usb/host/ehci-mx6.c @@ -67,7 +67,7 @@ DECLARE_GLOBAL_DATA_PTR; #define UCMD_RUN_STOP (1 << 0) /* controller run/stop */ #define UCMD_RESET (1 << 1) /* controller reset */ -#if defined(CONFIG_MX6) || defined(CONFIG_MX7ULP) +#if defined(CONFIG_MX6) || defined(CONFIG_MX7ULP) || defined(CONFIG_IMX8) static const ulong phy_bases[] = { USB_PHY0_BASE_ADDR, #if defined(USB_PHY1_BASE_ADDR) @@ -101,7 +101,44 @@ static void usb_power_config(int index) &usbphy->usb1_chrg_detect); scg_enable_usb_pll(true); +#elif defined(CONFIG_IMX8) + struct usbphy_regs __iomem *usbphy = (struct usbphy_regs __iomem *)USB_PHY0_BASE_ADDR; + int ret; + u32 val; + + if (index > 0) + return; + + writel(ANADIG_USB2_CHRG_DETECT_EN_B | ANADIG_USB2_CHRG_DETECT_CHK_CHRG_B, + &usbphy->usb1_chrg_detect); + + if (!(readl(&usbphy->usb1_pll_480_ctrl) & PLL_USB_LOCK_MASK)) { + + /* Enable the regulator first */ + writel(PLL_USB_REG_ENABLE_MASK, &usbphy->usb1_pll_480_ctrl_set); + + /* Wait at least 25us */ + udelay(25); + + /* Enable the power */ + writel(PLL_USB_PWR_MASK, &usbphy->usb1_pll_480_ctrl_set); + + /* Wait lock */ + ret = readl_poll_sleep_timeout(&usbphy->usb1_pll_480_ctrl, val, + val & PLL_USB_LOCK_MASK, 10, 1000000); + + if (ret) { + /* If timeout, we power down the pll */ + writel(PLL_USB_PWR_MASK, &usbphy->usb1_pll_480_ctrl_clr); + return; + } + } + /* Clear the bypass */ + writel(PLL_USB_BYPASS_MASK, &usbphy->usb1_pll_480_ctrl_clr); + + /* Enable the PLL clock out to USB */ + writel((PLL_USB_EN_USB_CLKS_MASK | PLL_USB_ENABLE_MASK), &usbphy->usb1_pll_480_ctrl_set); #else struct anatop_regs __iomem *anatop = (struct anatop_regs __iomem *)ANATOP_BASE_ADDR; @@ -213,6 +250,20 @@ struct usbnc_regs { u32 reserve0[2]; u32 hsic_ctrl; }; +#elif defined(CONFIG_IMX8) +struct usbnc_regs { + u32 ctrl1; + u32 ctrl2; + u32 reserve1[10]; + u32 phy_cfg1; + u32 phy_cfg2; + u32 reserve2; + u32 phy_status; + u32 reserve3[4]; + u32 adp_cfg1; + u32 adp_cfg2; + u32 adp_status; +}; #else /* Base address for this IP block is 0x02184800 */ struct usbnc_regs { @@ -289,7 +340,7 @@ static void usb_oc_config(int index) struct usbnc_regs *usbnc = (struct usbnc_regs *)(uintptr_t)(USB_BASE_ADDR + USB_OTHERREGS_OFFSET); void __iomem *ctrl = (void __iomem *)(&usbnc->ctrl[index]); -#elif defined(CONFIG_MX7) || defined(CONFIG_MX7ULP) +#elif defined(CONFIG_MX7) || defined(CONFIG_MX7ULP) || defined(CONFIG_IMX8) struct usbnc_regs *usbnc = (struct usbnc_regs *)(uintptr_t)(USB_BASE_ADDR + (0x10000 * index) + USBNC_OFFSET); void __iomem *ctrl = (void __iomem *)(&usbnc->ctrl1); @@ -373,7 +424,7 @@ int ehci_mx6_common_init(struct usb_ehci *ehci, int index) usb_power_config(index); usb_oc_config(index); -#if defined(CONFIG_MX6) || defined(CONFIG_MX7ULP) +#if defined(CONFIG_MX6) || defined(CONFIG_MX7ULP) || defined(CONFIG_IMX8) usb_internal_phy_clock_gate(index, 1); usb_phy_enable(index, ehci); #endif @@ -392,7 +443,7 @@ int ehci_hcd_init(int index, enum usb_init_type init, enum usb_init_type type; #if defined(CONFIG_MX6) u32 controller_spacing = 0x200; -#elif defined(CONFIG_MX7) || defined(CONFIG_MX7ULP) +#elif defined(CONFIG_MX7) || defined(CONFIG_MX7ULP) || defined(CONFIG_IMX8) u32 controller_spacing = 0x10000; #endif struct usb_ehci *ehci = (struct usb_ehci *)(uintptr_t)(USB_BASE_ADDR + @@ -506,7 +557,7 @@ static int ehci_usb_phy_mode(struct udevice *dev) * About fsl,usbphy, Refer to * Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt. */ - if (is_mx6() || is_mx7ulp()) { + if (is_mx6() || is_mx7ulp() || is_imx8()) { phy_off = fdtdec_lookup_phandle(blob, offset, "fsl,usbphy");