From 9b16757758411996f36348fa688d03fced8d5e5e Mon Sep 17 00:00:00 2001
From: Steve Sakoman <steve@sakoman.com>
Date: Fri, 25 Jun 2010 12:42:04 -0700
Subject: [PATCH] ARMV7: Restructure omap3 musb driver to allow code sharing
 between OMAP3 and OMAP4

Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
---
 arch/arm/include/asm/arch-omap3/cpu.h |  3 +++
 arch/arm/include/asm/arch-omap4/cpu.h |  3 +++
 drivers/usb/musb/omap3.c              | 16 ++++++++++++++++
 drivers/usb/musb/omap3.h              |  3 ++-
 4 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/arch-omap3/cpu.h b/arch/arm/include/asm/arch-omap3/cpu.h
index c072c27bbf..390b007945 100644
--- a/arch/arm/include/asm/arch-omap3/cpu.h
+++ b/arch/arm/include/asm/arch-omap3/cpu.h
@@ -483,4 +483,7 @@ struct pm {
 #define I2C_BASE2		(OMAP34XX_CORE_L4_IO_BASE + 0x72000)
 #define I2C_BASE3		(OMAP34XX_CORE_L4_IO_BASE + 0x60000)
 
+/* MUSB base */
+#define MUSB_BASE		(OMAP34XX_CORE_L4_IO_BASE + 0xAB000)
+
 #endif /* _CPU_H */
diff --git a/arch/arm/include/asm/arch-omap4/cpu.h b/arch/arm/include/asm/arch-omap4/cpu.h
index c056b9501b..7d5748acd4 100644
--- a/arch/arm/include/asm/arch-omap4/cpu.h
+++ b/arch/arm/include/asm/arch-omap4/cpu.h
@@ -139,4 +139,7 @@ struct watchdog {
 #define I2C_BASE2		(OMAP44XX_L4_PER_BASE + 0x72000)
 #define I2C_BASE3		(OMAP44XX_L4_PER_BASE + 0x60000)
 
+/* MUSB base */
+#define MUSB_BASE		(OMAP44XX_L4_CORE_BASE + 0xAB000)
+
 #endif /* _CPU_H */
diff --git a/drivers/usb/musb/omap3.c b/drivers/usb/musb/omap3.c
index a983552357..c7876ed094 100644
--- a/drivers/usb/musb/omap3.c
+++ b/drivers/usb/musb/omap3.c
@@ -31,6 +31,7 @@
  */
 
 #include <twl4030.h>
+#include <twl6030.h>
 #include "omap3.h"
 
 static int platform_needs_initialization = 1;
@@ -65,7 +66,12 @@ static struct omap3_otg_regs *otg;
 
 #define OMAP3_OTG_SYSSTATUS_RESETDONE			0x0001
 
+/* OMAP4430 has an internal PHY, use it */
+#ifdef CONFIG_OMAP4430
+#define OMAP3_OTG_INTERFSEL_OMAP			0x0000
+#else
 #define OMAP3_OTG_INTERFSEL_OMAP			0x0001
+#endif
 
 #define OMAP3_OTG_FORCESTDBY_STANDBY			0x0001
 
@@ -105,6 +111,11 @@ int musb_platform_init(void)
 			goto end;
 		}
 #endif
+
+#ifdef CONFIG_TWL6030_POWER
+		twl6030_usb_device_settings();
+#endif
+
 		otg = (struct omap3_otg_regs *)OMAP3_OTG_BASE;
 
 		/* Set OTG to always be on */
@@ -122,6 +133,11 @@ int musb_platform_init(void)
 #ifdef CONFIG_OMAP3_EVM
 		musb_cfg.extvbus = omap3_evm_need_extvbus();
 #endif
+
+#ifdef CONFIG_OMAP4430
+		u32 *usbotghs_control = (u32 *)(CTRL_BASE + 0x33C);
+		*usbotghs_control = 0x15;
+#endif
 		platform_needs_initialization = 0;
 	}
 
diff --git a/drivers/usb/musb/omap3.h b/drivers/usb/musb/omap3.h
index 2886d7e704..b2acdf4bc6 100644
--- a/drivers/usb/musb/omap3.h
+++ b/drivers/usb/musb/omap3.h
@@ -31,10 +31,11 @@
 #ifndef _MUSB_OMAP3_H_
 #define _MUSB_OMAP3_H_
 
+#include <asm/arch/cpu.h>
 #include "musb_core.h"
 
 /* Base address of MUSB registers */
-#define MENTOR_USB0_BASE (OMAP34XX_CORE_L4_IO_BASE + 0xAB000)
+#define MENTOR_USB0_BASE MUSB_BASE
 
 /* Base address of OTG registers */
 #define OMAP3_OTG_BASE (MENTOR_USB0_BASE + 0x400)