linux-kernel - [PATCH v6 1/5] usb: fsl: Set USB

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Message-Id: <20190605054952.34687-1-yinbo.zhu@nxp.com>
Date:   Wed,  5 Jun 2019 13:49:48 +0800
From:   Yinbo Zhu <yinbo.zhu@....com>
To:     Alan Stern <stern@...land.harvard.edu>
Cc:     yinbo.zhu@....com, xiaobo.xie@....com,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Ramneek Mehresh <ramneek.mehresh@...escale.com>,
        Nikhil Badola <nikhil.badola@...escale.com>,
        Ran Wang <ran.wang_1@....com>, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org, jiafei.pan@....com
Subject: [PATCH v6 1/5] 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 file changed, 6 insertions(+)

diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index e3d0c1c25160..38674b7aa51e 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -122,6 +122,12 @@ static int fsl_ehci_drv_probe(struct platform_device *pdev)
 		tmp |= 0x4;
 		iowrite32be(tmp, hcd->regs + FSL_SOC_USB_CTRL);
 	}
+
+	/* 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
-- 
2.17.1