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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+
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*/
#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
enum omap_ecc {
/* 1-bit ECC calculation by Software, Error detection by Software */
OMAP_ECC_HAM1_CODE_SW = 1, /* avoid un-initialized int can be 0x0 */
/* 1-bit ECC calculation by GPMC, Error detection by Software */
/* ECC layout compatible to legacy ROMCODE. */
OMAP_ECC_HAM1_CODE_HW,
/* 4-bit ECC calculation by GPMC, Error detection by Software */
OMAP_ECC_BCH4_CODE_HW_DETECTION_SW,
/* 4-bit ECC calculation by GPMC, Error detection by ELM */
OMAP_ECC_BCH4_CODE_HW,
/* 8-bit ECC calculation by GPMC, Error detection by Software */
OMAP_ECC_BCH8_CODE_HW_DETECTION_SW,
/* 8-bit ECC calculation by GPMC, Error detection by ELM */
OMAP_ECC_BCH8_CODE_HW,
};
#endif /* __ASM_OMAP_GPMC_H */