From 25f8bf6eff9e66df850301c5e9e5259807e286f0 Mon Sep 17 00:00:00 2001
From: Sughosh Ganu <urwithsughosh@gmail.com>
Date: Thu, 9 Aug 2012 10:45:20 +0000
Subject: da8xx/hawkboard: Add support for ohci host controller

Also enable the ohci port on hawkboard. These additions result in an
increased u-boot size -- adjust the same accordingly in the board's
config.

Move the usb header for da8xx platforms under arch-davinci.

Signed-off-by: Sughosh Ganu <urwithsughosh@gmail.com>
---
 board/davinci/da8xxevm/hawkboard.c | 41 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

(limited to 'board/davinci')

diff --git a/board/davinci/da8xxevm/hawkboard.c b/board/davinci/da8xxevm/hawkboard.c
index b6942589f4..156cb7f4ca 100644
--- a/board/davinci/da8xxevm/hawkboard.c
+++ b/board/davinci/da8xxevm/hawkboard.c
@@ -4,6 +4,7 @@
  * Copyright (C) 2008 Sekhar Nori, Texas Instruments, Inc.  <nsekhar@ti.com>
  * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
  * Copyright (C) 2004 Texas Instruments.
+ * Copyright (C) 2012 Sughosh Ganu <urwithsughosh@gmail.com>.
  *
  * ----------------------------------------------------------------------------
  * This program is free software; you can redistribute it and/or modify
@@ -28,6 +29,7 @@
 #include <asm/io.h>
 #include <asm/arch/davinci_misc.h>
 #include <asm/arch/pinmux_defs.h>
+#include <asm/arch/da8xx-usb.h>
 #include <ns16550.h>
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -89,3 +91,42 @@ int misc_init_r(void)
 
 	return 0;
 }
+
+int usb_phy_on(void)
+{
+	u32 timeout;
+	u32 cfgchip2;
+
+	cfgchip2 = readl(&davinci_syscfg_regs->cfgchip2);
+
+	cfgchip2 &= ~(CFGCHIP2_RESET | CFGCHIP2_PHYPWRDN | CFGCHIP2_OTGPWRDN |
+		      CFGCHIP2_OTGMODE | CFGCHIP2_REFFREQ |
+		      CFGCHIP2_USB1PHYCLKMUX);
+	cfgchip2 |= CFGCHIP2_SESENDEN | CFGCHIP2_VBDTCTEN | CFGCHIP2_PHY_PLLON |
+		    CFGCHIP2_REFFREQ_24MHZ | CFGCHIP2_USB2PHYCLKMUX |
+		    CFGCHIP2_USB1SUSPENDM;
+
+	writel(cfgchip2, &davinci_syscfg_regs->cfgchip2);
+
+	/* wait until the usb phy pll locks */
+	timeout = DA8XX_USB_OTG_TIMEOUT;
+	while (timeout--)
+		if (readl(&davinci_syscfg_regs->cfgchip2) & CFGCHIP2_PHYCLKGD)
+			return 1;
+
+	/* USB phy was not turned on */
+	return 0;
+}
+
+void usb_phy_off(void)
+{
+	u32 cfgchip2;
+
+	/*
+	 * Power down the on-chip PHY.
+	 */
+	cfgchip2 = readl(&davinci_syscfg_regs->cfgchip2);
+	cfgchip2 &= ~(CFGCHIP2_PHY_PLLON | CFGCHIP2_USB1SUSPENDM);
+	cfgchip2 |= CFGCHIP2_PHYPWRDN | CFGCHIP2_OTGPWRDN | CFGCHIP2_RESET;
+	writel(cfgchip2, &davinci_syscfg_regs->cfgchip2);
+}
-- 
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