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/arm/include/asm/omap_gpmc.h

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/*
* (C) Copyright 2004-2008 Texas Instruments, <www.ti.com>
* Rohit Choraria <rohitkc@ti.com>
*
* (C) Copyright 2013 Andreas Bießmann <andreas.devel@googlemail.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __ASM_OMAP_GPMC_H
#define __ASM_OMAP_GPMC_H
#include <asm/arch/omap_gpmc.h>
#define GPMC_BUF_EMPTY 0
#define GPMC_BUF_FULL 1
#define ECCCLEAR (0x1 << 8)
#define ECCRESULTREG1 (0x1 << 0)
#define ECCSIZE512BYTE 0xFF
#define ECCSIZE1 (ECCSIZE512BYTE << 22)
#define ECCSIZE0 (ECCSIZE512BYTE << 12)
#define ECCSIZE0SEL (0x000 << 0)
/* Generic ECC Layouts */
/* Large Page x8 NAND device Layout */
#ifdef GPMC_NAND_ECC_LP_x8_LAYOUT
#define GPMC_NAND_HW_ECC_LAYOUT {\
.eccbytes = 12,\
.eccpos = {1, 2, 3, 4, 5, 6, 7, 8,\
9, 10, 11, 12},\
.oobfree = {\
{.offset = 13,\
.length = 51 } } \
}
#endif
/* Large Page x16 NAND device Layout */
#ifdef GPMC_NAND_ECC_LP_x16_LAYOUT
#define GPMC_NAND_HW_ECC_LAYOUT {\
.eccbytes = 12,\
.eccpos = {2, 3, 4, 5, 6, 7, 8, 9,\
10, 11, 12, 13},\
.oobfree = {\
{.offset = 14,\
.length = 50 } } \
}
#endif
/* Small Page x8 NAND device Layout */
#ifdef GPMC_NAND_ECC_SP_x8_LAYOUT
#define GPMC_NAND_HW_ECC_LAYOUT {\
.eccbytes = 3,\
.eccpos = {1, 2, 3},\
.oobfree = {\
{.offset = 4,\
.length = 12 } } \
}
#endif
/* Small Page x16 NAND device Layout */
#ifdef GPMC_NAND_ECC_SP_x16_LAYOUT
#define GPMC_NAND_HW_ECC_LAYOUT {\
.eccbytes = 3,\
.eccpos = {2, 3, 4},\
.oobfree = {\
{.offset = 5,\
.length = 11 } } \
}
#endif
#endif /* __ASM_OMAP_GPMC_H */