---

yaml
---
r: 185290
b: refs/heads/master
c: 5fc4e77
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 51bf0d0e6cc1f9679a973f61d07cb48e71f9c992
+refs/heads/master: 5fc4e77911f457b6aa910c704eebe3a58d334116

trunk/drivers/usb/musb/musb_core.c

@@ -2031,13 +2031,21 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
 	/* host side needs more setup */
 	if (is_host_enabled(musb)) {
 		struct usb_hcd	*hcd = musb_to_hcd(musb);
+		u8 busctl;
 
 		otg_set_host(musb->xceiv, &hcd->self);
 
 		if (is_otg_enabled(musb))
 			hcd->self.otg_port = 1;
 		musb->xceiv->host = &hcd->self;
 		hcd->power_budget = 2 * (plat->power ? : 250);
+
+		/* program PHY to use external vBus if required */
+		if (plat->extvbus) {
+			busctl = musb_readb(musb->mregs, MUSB_ULPI_BUSCONTROL);
+			busctl |= MUSB_ULPI_USE_EXTVBUS;
+			musb_writeb(musb->mregs, MUSB_ULPI_BUSCONTROL, busctl);
+		}
 	}
 
 	/* For the host-only role, we can activate right away.

trunk/drivers/usb/musb/musb_regs.h

@@ -72,6 +72,10 @@
 #define MUSB_DEVCTL_HR		0x02
 #define MUSB_DEVCTL_SESSION	0x01
 
+/* MUSB ULPI VBUSCONTROL */
+#define MUSB_ULPI_USE_EXTVBUS	0x01
+#define MUSB_ULPI_USE_EXTVBUSIND 0x02
+
 /* TESTMODE */
 #define MUSB_TEST_FORCE_HOST	0x80
 #define MUSB_TEST_FIFO_ACCESS	0x40
@@ -246,6 +250,7 @@
 
 /* REVISIT: vctrl/vstatus: optional vendor utmi+phy register at 0x68 */
 #define MUSB_HWVERS		0x6C	/* 8 bit */
+#define MUSB_ULPI_BUSCONTROL	0x70	/* 8 bit */
 
 #define MUSB_EPINFO		0x78	/* 8 bit */
 #define MUSB_RAMINFO		0x79	/* 8 bit */

trunk/include/linux/usb/musb.h

@@ -76,6 +76,9 @@ struct musb_hdrc_platform_data {
 	/* (HOST or OTG) msec/2 after VBUS on till power good */
 	u8		potpgt;
 
+	/* (HOST or OTG) program PHY for external Vbus */
+	unsigned	extvbus:1;
+
 	/* Power the device on or off */
 	int		(*set_power)(int state);