linux-kernel - [PATCH 4/4] phy: ti: usb2: Add support for AM654 USB2 PHY

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Date:   Wed, 5 Dec 2018 17:03:26 +0200
From:   Roger Quadros <rogerq@...com>
To:     <kishon@...com>
CC:     <robh+dt@...nel.org>, <nsekhar@...com>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-omap@...r.kernel.org>, Roger Quadros <rogerq@...com>
Subject: [PATCH 4/4] phy: ti: usb2: Add support for AM654 USB2 PHY

Add support for the USB2 PHY on the AM654 SoC.

Signed-off-by: Roger Quadros <rogerq@...com>
Signed-off-by: Sekhar Nori <nsekhar@...com>
---
 drivers/phy/ti/Kconfig         |  4 ++--
 drivers/phy/ti/phy-omap-usb2.c | 17 +++++++++++++++++
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/drivers/phy/ti/Kconfig b/drivers/phy/ti/Kconfig
index 4fdbe06..a55959b 100644
--- a/drivers/phy/ti/Kconfig
+++ b/drivers/phy/ti/Kconfig
@@ -33,11 +33,11 @@ config OMAP_CONTROL_PHY
 
 config OMAP_USB2
 	tristate "OMAP USB2 PHY Driver"
-	depends on ARCH_OMAP2PLUS
+	depends on ARCH_OMAP2PLUS || ARCH_K3
 	depends on USB_SUPPORT
 	select GENERIC_PHY
 	select USB_PHY
-	select OMAP_CONTROL_PHY
+	select OMAP_CONTROL_PHY if ARCH_OMAP2PLUS
 	help
 	  Enable this to support the transceiver that is part of SOC. This
 	  driver takes care of all the PHY functionality apart from comparator.
diff --git a/drivers/phy/ti/phy-omap-usb2.c b/drivers/phy/ti/phy-omap-usb2.c
index 418e7f1..e871f29 100644
--- a/drivers/phy/ti/phy-omap-usb2.c
+++ b/drivers/phy/ti/phy-omap-usb2.c
@@ -36,6 +36,10 @@
 #define USB2PHY_DISCON_BYP_LATCH (1 << 31)
 #define USB2PHY_ANA_CONFIG1 0x4c
 
+#define AM654_USB2_OTG_PD		BIT(8)
+#define AM654_USB2_VBUS_DET_EN		BIT(5)
+#define AM654_USB2_VBUSVALID_DET_EN	BIT(4)
+
 /**
  * omap_usb2_set_comparator - links the comparator present in the sytem with
  *	this phy
@@ -245,6 +249,15 @@ static const struct usb_phy_data am437x_usb2_data = {
 	.power_off = AM437X_USB2_PHY_PD | AM437X_USB2_OTG_PD,
 };
 
+static const struct usb_phy_data am654_usb2_data = {
+	.label = "am654_usb2",
+	.flags = OMAP_USB2_CALIBRATE_FALSE_DISCONNECT,
+	.mask = AM654_USB2_OTG_PD | AM654_USB2_VBUS_DET_EN |
+		AM654_USB2_VBUSVALID_DET_EN,
+	.power_on = AM654_USB2_VBUS_DET_EN | AM654_USB2_VBUSVALID_DET_EN,
+	.power_off = AM654_USB2_OTG_PD,
+};
+
 static const struct of_device_id omap_usb2_id_table[] = {
 	{
 		.compatible = "ti,omap-usb2",
@@ -266,6 +279,10 @@ static const struct of_device_id omap_usb2_id_table[] = {
 		.compatible = "ti,am437x-usb2",
 		.data = &am437x_usb2_data,
 	},
+	{
+		.compatible = "ti,am654-usb2",
+		.data = &am654_usb2_data,
+	},
 	{},
 };
 MODULE_DEVICE_TABLE(of, omap_usb2_id_table);
-- 
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