104 lines
2.6 KiB
C
104 lines
2.6 KiB
C
|
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2021 Rockchip Electronics Co., Ltd.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __UBOOT__
|
||
|
|
#include <linux/device.h>
|
||
|
|
#include <linux/kernel.h>
|
||
|
|
#endif
|
||
|
|
#include <linux/mtd/spinand.h>
|
||
|
|
|
||
|
|
#define SPINAND_MFR_ETRON 0xD5
|
||
|
|
|
||
|
|
static SPINAND_OP_VARIANTS(read_cache_variants,
|
||
|
|
SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 2, NULL, 0),
|
||
|
|
SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0),
|
||
|
|
SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 1, NULL, 0),
|
||
|
|
SPINAND_PAGE_READ_FROM_CACHE_X2_OP(0, 1, NULL, 0),
|
||
|
|
SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0),
|
||
|
|
SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0));
|
||
|
|
|
||
|
|
static SPINAND_OP_VARIANTS(write_cache_variants,
|
||
|
|
SPINAND_PROG_LOAD_X4(true, 0, NULL, 0),
|
||
|
|
SPINAND_PROG_LOAD(true, 0, NULL, 0));
|
||
|
|
|
||
|
|
static SPINAND_OP_VARIANTS(update_cache_variants,
|
||
|
|
SPINAND_PROG_LOAD_X4(false, 0, NULL, 0),
|
||
|
|
SPINAND_PROG_LOAD(false, 0, NULL, 0));
|
||
|
|
|
||
|
|
static int em73c044vcf_oh_ooblayout_ecc(struct mtd_info *mtd, int section,
|
||
|
|
struct mtd_oob_region *region)
|
||
|
|
{
|
||
|
|
if (section > 3)
|
||
|
|
return -ERANGE;
|
||
|
|
|
||
|
|
region->offset = (16 * section) + 8;
|
||
|
|
region->length = 8;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int em73c044vcf_oh_ooblayout_free(struct mtd_info *mtd, int section,
|
||
|
|
struct mtd_oob_region *region)
|
||
|
|
{
|
||
|
|
if (section > 3)
|
||
|
|
return -ERANGE;
|
||
|
|
|
||
|
|
region->offset = (16 * section) + 2;
|
||
|
|
region->length = 6;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct mtd_ooblayout_ops em73c044vcf_oh_ooblayout = {
|
||
|
|
.ecc = em73c044vcf_oh_ooblayout_ecc,
|
||
|
|
.rfree = em73c044vcf_oh_ooblayout_free,
|
||
|
|
};
|
||
|
|
|
||
|
|
static int em73c044vcf_oh_ecc_get_status(struct spinand_device *spinand,
|
||
|
|
u8 status)
|
||
|
|
{
|
||
|
|
struct nand_device *nand = spinand_to_nand(spinand);
|
||
|
|
|
||
|
|
switch (status & STATUS_ECC_MASK) {
|
||
|
|
case STATUS_ECC_NO_BITFLIPS:
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
case STATUS_ECC_UNCOR_ERROR:
|
||
|
|
return -EBADMSG;
|
||
|
|
|
||
|
|
case STATUS_ECC_HAS_BITFLIPS:
|
||
|
|
return 1;
|
||
|
|
|
||
|
|
default:
|
||
|
|
return nand->eccreq.strength;
|
||
|
|
}
|
||
|
|
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct spinand_info etron_spinand_table[] = {
|
||
|
|
SPINAND_INFO("EM73C044VCF-0H",
|
||
|
|
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x36),
|
||
|
|
NAND_MEMORG(1, 2048, 64, 64, 1024, 1, 1, 1),
|
||
|
|
NAND_ECCREQ(4, 512),
|
||
|
|
SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
|
||
|
|
&write_cache_variants,
|
||
|
|
&update_cache_variants),
|
||
|
|
SPINAND_HAS_QE_BIT,
|
||
|
|
SPINAND_ECCINFO(&em73c044vcf_oh_ooblayout,
|
||
|
|
em73c044vcf_oh_ecc_get_status)),
|
||
|
|
};
|
||
|
|
|
||
|
|
static const struct spinand_manufacturer_ops etron_spinand_manuf_ops = {
|
||
|
|
};
|
||
|
|
|
||
|
|
const struct spinand_manufacturer etron_spinand_manufacturer = {
|
||
|
|
.id = SPINAND_MFR_ETRON,
|
||
|
|
.name = "Etron",
|
||
|
|
.chips = etron_spinand_table,
|
||
|
|
.nchips = ARRAY_SIZE(etron_spinand_table),
|
||
|
|
.ops = &etron_spinand_manuf_ops,
|
||
|
|
};
|