mirror of
https://github.com/AsahiLinux/u-boot
synced 2025-01-09 19:58:55 +00:00
8acaec923b
This adds more supported spinand devices from the Linux kernel implementation. This does not include the latest kernel implementation as this would require a substantial amount of extra work due to the missing ECC engine abstraction layer in U-Boot. Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu> Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de> (commit message) Link: https://lore.kernel.org/all/20230110115843.391630-3-frieder@fris.de Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
133 lines
3.4 KiB
C
133 lines
3.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (C) 2019 Jeff Kletsky
|
|
*
|
|
* Author: Jeff Kletsky <git-commits@allycomm.com>
|
|
*/
|
|
|
|
#ifndef __UBOOT__
|
|
#include <linux/device.h>
|
|
#include <linux/kernel.h>
|
|
#endif
|
|
#include <linux/mtd/spinand.h>
|
|
|
|
|
|
#define SPINAND_MFR_PARAGON 0xa1
|
|
|
|
|
|
#define PN26G0XA_STATUS_ECC_BITMASK (3 << 4)
|
|
|
|
#define PN26G0XA_STATUS_ECC_NONE_DETECTED (0 << 4)
|
|
#define PN26G0XA_STATUS_ECC_1_7_CORRECTED (1 << 4)
|
|
#define PN26G0XA_STATUS_ECC_ERRORED (2 << 4)
|
|
#define PN26G0XA_STATUS_ECC_8_CORRECTED (3 << 4)
|
|
|
|
|
|
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 pn26g0xa_ooblayout_ecc(struct mtd_info *mtd, int section,
|
|
struct mtd_oob_region *region)
|
|
{
|
|
if (section > 3)
|
|
return -ERANGE;
|
|
|
|
region->offset = 6 + (15 * section); /* 4 BBM + 2 user bytes */
|
|
region->length = 13;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int pn26g0xa_ooblayout_free(struct mtd_info *mtd, int section,
|
|
struct mtd_oob_region *region)
|
|
{
|
|
if (section > 4)
|
|
return -ERANGE;
|
|
|
|
if (section == 4) {
|
|
region->offset = 64;
|
|
region->length = 64;
|
|
} else {
|
|
region->offset = 4 + (15 * section);
|
|
region->length = 2;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int pn26g0xa_ecc_get_status(struct spinand_device *spinand,
|
|
u8 status)
|
|
{
|
|
switch (status & PN26G0XA_STATUS_ECC_BITMASK) {
|
|
case PN26G0XA_STATUS_ECC_NONE_DETECTED:
|
|
return 0;
|
|
|
|
case PN26G0XA_STATUS_ECC_1_7_CORRECTED:
|
|
return 7; /* Return upper limit by convention */
|
|
|
|
case PN26G0XA_STATUS_ECC_8_CORRECTED:
|
|
return 8;
|
|
|
|
case PN26G0XA_STATUS_ECC_ERRORED:
|
|
return -EBADMSG;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return -EINVAL;
|
|
}
|
|
|
|
static const struct mtd_ooblayout_ops pn26g0xa_ooblayout = {
|
|
.ecc = pn26g0xa_ooblayout_ecc,
|
|
.rfree = pn26g0xa_ooblayout_free,
|
|
};
|
|
|
|
|
|
static const struct spinand_info paragon_spinand_table[] = {
|
|
SPINAND_INFO("PN26G01A",
|
|
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xe1),
|
|
NAND_MEMORG(1, 2048, 128, 64, 1024, 21, 1, 1, 1),
|
|
NAND_ECCREQ(8, 512),
|
|
SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
|
|
&write_cache_variants,
|
|
&update_cache_variants),
|
|
0,
|
|
SPINAND_ECCINFO(&pn26g0xa_ooblayout,
|
|
pn26g0xa_ecc_get_status)),
|
|
SPINAND_INFO("PN26G02A",
|
|
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xe2),
|
|
NAND_MEMORG(1, 2048, 128, 64, 2048, 41, 1, 1, 1),
|
|
NAND_ECCREQ(8, 512),
|
|
SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
|
|
&write_cache_variants,
|
|
&update_cache_variants),
|
|
0,
|
|
SPINAND_ECCINFO(&pn26g0xa_ooblayout,
|
|
pn26g0xa_ecc_get_status)),
|
|
};
|
|
|
|
static const struct spinand_manufacturer_ops paragon_spinand_manuf_ops = {
|
|
};
|
|
|
|
const struct spinand_manufacturer paragon_spinand_manufacturer = {
|
|
.id = SPINAND_MFR_PARAGON,
|
|
.name = "Paragon",
|
|
.chips = paragon_spinand_table,
|
|
.nchips = ARRAY_SIZE(paragon_spinand_table),
|
|
.ops = ¶gon_spinand_manuf_ops,
|
|
};
|