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

@@ -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 */

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 */

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;
 	}
 

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)