usb: isp1362: remove blackfin arch glue

The blackfin architecture is getting removed, and this is the last
remaining architecture specific setting, so the various hacks
can be removed now.

From all I can tell, there are no remaining in-tree users of the
driver, but it could be used by out-of-tree platform ports.
I've marked the driver as 'depends on COMPILE_TEST', short of
removing it outright.

It was originally written for some ARM PXA machines using the same
chip, but that platform never really worked and the code has been
removed a long time ago.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Aaron Wu <aaron.wu@analog.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

drivers/usb/host/isp1362.h

@@ -6,49 +6,6 @@
  */
 
 /* ------------------------------------------------------------------------- */
-/*
- * Platform specific compile time options
- */
-#if defined(CONFIG_BLACKFIN)
-
-#include <linux/io.h>
-#define USE_32BIT		0
-#define MAX_ROOT_PORTS		2
-#define USE_PLATFORM_DELAY	0
-#define USE_NDELAY		1
-
-#define DUMMY_DELAY_ACCESS \
-	do { \
-		bfin_read16(ASYNC_BANK0_BASE); \
-		bfin_read16(ASYNC_BANK0_BASE); \
-		bfin_read16(ASYNC_BANK0_BASE); \
-	} while (0)
-
-#undef insw
-#undef outsw
-
-#define insw  delayed_insw
-#define outsw  delayed_outsw
-
-static inline void delayed_outsw(unsigned int addr, void *buf, int len)
-{
-	unsigned short *bp = (unsigned short *)buf;
-	while (len--) {
-		DUMMY_DELAY_ACCESS;
-		outw(*bp++, addr);
-	}
-}
-
-static inline void delayed_insw(unsigned int addr, void *buf, int len)
-{
-	unsigned short *bp = (unsigned short *)buf;
-	while (len--) {
-		DUMMY_DELAY_ACCESS;
-		*bp++ = inw(addr);
-	}
-}
-
-#else
 
 #define MAX_ROOT_PORTS		2
 
@@ -60,9 +17,6 @@ static inline void delayed_insw(unsigned int addr, void *buf, int len)
 
 #define DUMMY_DELAY_ACCESS do {} while (0)
 
-#endif
-
-
 /* ------------------------------------------------------------------------- */
 
 #define USB_RESET_WIDTH			50