linux-kernel - [PATCH v1 1/6] usb: fsl: Set USB

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Date:   Mon, 21 Jan 2019 11:12:59 +0800
From:   Yinbo Zhu <yinbo.zhu@....com>
To:     Alan Stern <stern@...land.harvard.edu>
Cc:     yinbo.zhu@....com, xiaobo.xie@....com, jerry.huang@....com,
        ran.wang_1@....com,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Ramneek Mehresh <ramneek.mehresh@...escale.com>,
        Nikhil Badola <nikhil.badola@...escale.com>,
        Suresh Gupta <suresh.gupta@...escale.com>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v1 1/6] usb: fsl: Set USB_EN bit to select ULPI phy

From: Nikhil Badola <nikhil.badola@...escale.com>

Set USB_EN bit to select ULPI phy for USB controller version 2.5

Signed-off-by: Nikhil Badola <nikhil.badola@...escale.com>
Signed-off-by: yinbo.zhu <yinbo.zhu@....com>
---
 drivers/usb/host/ehci-fsl.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index 0a9fd20..71c4661 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -118,6 +118,12 @@ static int fsl_ehci_drv_probe(struct platform_device *pdev)
 		clrsetbits_be32(hcd->regs + FSL_SOC_USB_CTRL,
 				CONTROL_REGISTER_W1C_MASK, 0x4);
 
+	/* Set USB_EN bit to select ULPI phy for USB controller version 2.5 */
+	if (pdata->controller_ver == FSL_USB_VER_2_5 &&
+		pdata->phy_mode == FSL_USB2_PHY_ULPI)
+		iowrite32be(USB_CTRL_USB_EN, hcd->regs + FSL_SOC_USB_CTRL);
+
+
 	/*
 	 * Enable UTMI phy and program PTS field in UTMI mode before asserting
 	 * controller reset for USB Controller version 2.5
-- 
1.7.1