upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/include/usb/lin_gadget_compat.h

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/*
* Copyright (c) 2011 Samsung Electronics
* Lukasz Majewski <l.majewski@samsung.com>
*
* This is a Linux kernel compatibility layer for USB Gadget
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __LIN_COMPAT_H__
#define __LIN_COMPAT_H__
#include <linux/bitops.h>
#include <linux/compat.h>
/* common */
#define DECLARE_BITMAP(name, bits) \
unsigned long name[BITS_TO_LONGS(bits)]
#define small_const_nbits(nbits) \
(__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG)
static inline void bitmap_zero(unsigned long *dst, int nbits)
{
if (small_const_nbits(nbits))
*dst = 0UL;
else {
int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
memset(dst, 0, len);
}
}
#define dma_cache_maint(addr, size, mode) cache_flush()
void cache_flush(void);
#endif /* __LIN_COMPAT_H__ */