USB: OHCI: Eliminate platform-specific test in ohci.h

/*-------------------------------------------------------------------------*/

/* HCCA frame number is 16 bits, but is accessed as 32 bits since not all

 * hardware handles 16 bit reads.  That creates a different confusion on

 * some big-endian SOC implementations.  Same thing happens with PSW access.

/*

 * The HCCA frame number is 16 bits, but is accessed as 32 bits since not all

 * hardware handles 16 bit reads.  Depending on the SoC implementation, the

 * frame number can wind up in either bits [31:16] (default) or

 * [15:0] (OHCI_QUIRK_FRAME_NO) on big endian hosts.

 *

 * Somewhat similarly, the 16-bit PSW fields in a transfer descriptor are

 * reordered on BE.

 */

#ifdef CONFIG_PPC_MPC52xx

#define big_endian_frame_no_quirk(ohci)	(ohci->flags & OHCI_QUIRK_FRAME_NO)

#else

#define big_endian_frame_no_quirk(ohci)	0

#endif

static inline u16 ohci_frame_no(const struct ohci_hcd *ohci)

{

	u32 tmp;

	if (big_endian_desc(ohci)) {

		tmp = be32_to_cpup((__force __be32 *)&ohci->hcca->frame_no);

		if (!big_endian_frame_no_quirk(ohci))

		if (!(ohci->flags & OHCI_QUIRK_FRAME_NO))

			tmp >>= 16;

	} else

		tmp = le32_to_cpup((__force __le32 *)&ohci->hcca->frame_no);