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/arch-davinci/emif_defs.h

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/*
* Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef _EMIF_DEFS_H_
#define _EMIF_DEFS_H_
#include <asm/arch/hardware.h>
struct davinci_emif_regs {
u_int32_t ercsr;
u_int32_t awccr;
u_int32_t sdbcr;
u_int32_t sdrcr;
u_int32_t ab1cr;
u_int32_t ab2cr;
u_int32_t ab3cr;
u_int32_t ab4cr;
u_int32_t sdtimr;
u_int32_t ddrsr;
u_int32_t ddrphycr;
u_int32_t ddrphysr;
u_int32_t totar;
u_int32_t totactr;
u_int32_t ddrphyid_rev;
u_int32_t sdsretr;
u_int32_t eirr;
u_int32_t eimr;
u_int32_t eimsr;
u_int32_t eimcr;
u_int32_t ioctrlr;
u_int32_t iostatr;
u_int8_t rsvd0[8];
u_int32_t nandfcr;
u_int32_t nandfsr;
u_int8_t rsvd1[8];
u_int32_t nandfecc[4];
u_int8_t rsvd2[60];
u_int32_t nand4biteccload;
u_int32_t nand4bitecc[4];
u_int32_t nanderradd1;
u_int32_t nanderradd2;
u_int32_t nanderrval1;
u_int32_t nanderrval2;
};
#define davinci_emif_regs \
((struct davinci_emif_regs *)DAVINCI_ASYNC_EMIF_CNTRL_BASE)
#define DAVINCI_NANDFCR_NAND_ENABLE(n) (1 << (n-2))
#define DAVINCI_NANDFCR_4BIT_ECC_SEL_MASK (3 << 4)
#define DAVINCI_NANDFCR_4BIT_ECC_SEL(n) ((n-2) << 4)
#define DAVINCI_NANDFCR_1BIT_ECC_START(n) (1 << (8 + (n-2)))
#define DAVINCI_NANDFCR_4BIT_ECC_START (1 << 12)
#define DAVINCI_NANDFCR_4BIT_CALC_START (1 << 13)
#define DAVINCI_NANDFCR_CS2NAND (1 << 0)
/* Chip Select setup */
#define DAVINCI_ABCR_STROBE_SELECT (1 << 31)
#define DAVINCI_ABCR_EXT_WAIT (1 << 30)
#define DAVINCI_ABCR_WSETUP(n) (n << 26)
#define DAVINCI_ABCR_WSTROBE(n) (n << 20)
#define DAVINCI_ABCR_WHOLD(n) (n << 17)
#define DAVINCI_ABCR_RSETUP(n) (n << 13)
#define DAVINCI_ABCR_RSTROBE(n) (n << 7)
#define DAVINCI_ABCR_RHOLD(n) (n << 4)
#define DAVINCI_ABCR_TA(n) (n << 2)
#define DAVINCI_ABCR_ASIZE_16BIT 1
#define DAVINCI_ABCR_ASIZE_8BIT 0
#endif