Merge branch 'next' of git://git.denx.de/u-boot-mpc83xx

[oweals/u-boot.git] / board / davinci / da8xxevm / hawkboard.c

diff --git a/board/davinci/da8xxevm/hawkboard.c b/board/davinci/da8xxevm/hawkboard.c
index b6942589f474a3925ef40f32e6031004ee06ea49..d5992a55646b934a6c6eb289edf64ba9a109e7f2 100644 (file)
--- a/board/davinci/da8xxevm/hawkboard.c
+++ b/board/davinci/da8xxevm/hawkboard.c
@@ -4,21 +4,10 @@
  * 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
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * SPDX-License-Identifier:    GPL-2.0+
  * ----------------------------------------------------------------------------
  */
 
@@ -28,6 +17,7 @@
 #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 +79,42 @@ 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);
+}