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/arch/sparc/include/asm/arch-leon3/asi.h

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/* asi.h: Address Space Identifier values for the LEON3 sparc.
*
* Copyright (C) 2008 Daniel Hellstrom (daniel@gaisler.com)
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _LEON3_ASI_H
#define _LEON3_ASI_H
#define ASI_CACHEMISS 0x01 /* Force D-Cache miss on load (lda) */
#define ASI_M_FLUSH_PROBE 0x03 /* MMU Flush/Probe */
#define ASI_IFLUSH 0x10 /* Flush I-Cache */
#define ASI_DFLUSH 0x11 /* Flush D-Cache */
#define ASI_BYPASS 0x1c /* Bypass MMU (Physical address) */
#define ASI_MMUFLUSH 0x18 /* FLUSH TLB */
#define ASI_M_MMUREGS 0x19 /* READ/Write MMU Registers */
#endif /* _LEON3_ASI_H */