shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-07 19:30:30 +09:00
Code Issues Packages Projects Releases Wiki Activity

mtd: spinand: zbit: Add code

Browse Source 
Support ZB35Q01BYIG.

Change-Id: I03c886d2de63052aff2f3361758ac51d3f9166c6
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
This commit is contained in:
Jon Lin
2024-07-17 14:42:26 +08:00
committed by Tao Huang
parent 3aed5bf52d
commit 1cead8b60e
4 changed files with 80 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/mtd/nand/spi/Makefile
View File

@@ -1,3 +1,3 @@
# SPDX-License-Identifier: GPL-2.0
spinand-objs := core.o ato.o gigadevice.o gsto.o macronix.o micron.o paragon.o toshiba.o winbond.o biwin.o dosilicon.o esmt.o etron.o fmsh.o foresee.o hyf.o jsc.o silicongo.o skyhigh.o unim.o xincun.o xtx.o
spinand-objs := core.o ato.o gigadevice.o gsto.o macronix.o micron.o paragon.o toshiba.o winbond.o biwin.o dosilicon.o esmt.o etron.o fmsh.o foresee.o hyf.o jsc.o silicongo.o skyhigh.o unim.o xincun.o xtx.o zbit.o
obj-$(CONFIG_MTD_SPI_NAND) += spinand.o

1
drivers/mtd/nand/spi/core.c
View File

@@ -973,6 +973,7 @@ static const struct spinand_manufacturer *spinand_manufacturers[] = {
&winbond_spinand_manufacturer,
&xincun_spinand_manufacturer,
&xtx_spinand_manufacturer,
&zbit_spinand_manufacturer,
};
static int spinand_manufacturer_match(struct spinand_device *spinand,

77
drivers/mtd/nand/spi/zbit.c Normal file
View File

@@ -0,0 +1,77 @@
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2024 Rockchip Electronics Co., Ltd
*
* Authors:
* Dingqiang Lin <jon.lin@rock-chips.com>
*/
#include <linux/device.h>
#include <linux/kernel.h>
#include <linux/mtd/spinand.h>
#define SPINAND_MFR_ZBIT 0x5E
#define ZBIT_STATUS_ECC_HAS_BITFLIPS_T (3 << 4)
static SPINAND_OP_VARIANTS(read_cache_variants,
SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 1, 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 zb35q01b_ooblayout_ecc(struct mtd_info *mtd, int section,
struct mtd_oob_region *region)
{
return -ERANGE;
}
static int zb35q01b_ooblayout_free(struct mtd_info *mtd, int section,
struct mtd_oob_region *region)
{
if (section)
return -ERANGE;
/* Reserve 2 bytes for the BBM. */
region->offset = 2;
region->length = mtd->oobsize - 2;
return 0;
}
static const struct mtd_ooblayout_ops zb35q01b_ooblayout = {
.ecc = zb35q01b_ooblayout_ecc,
.free = zb35q01b_ooblayout_free,
};
static const struct spinand_info zbit_spinand_table[] = {
SPINAND_INFO("ZB35Q01BYIG",
SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0xA1),
NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
NAND_ECCREQ(8, 512),
SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
&write_cache_variants,
&update_cache_variants),
0,
SPINAND_ECCINFO(&zb35q01b_ooblayout, NULL)),
};
static const struct spinand_manufacturer_ops zbit_spinand_manuf_ops = {
};
const struct spinand_manufacturer zbit_spinand_manufacturer = {
.id = SPINAND_MFR_ZBIT,
.name = "ZBIT",
.chips = zbit_spinand_table,
.nchips = ARRAY_SIZE(zbit_spinand_table),
.ops = &zbit_spinand_manuf_ops,
};

1
include/linux/mtd/spinand.h
View File

@@ -283,6 +283,7 @@ extern const struct spinand_manufacturer unim_zl_spinand_manufacturer;
extern const struct spinand_manufacturer winbond_spinand_manufacturer;
extern const struct spinand_manufacturer xincun_spinand_manufacturer;
extern const struct spinand_manufacturer xtx_spinand_manufacturer;
extern const struct spinand_manufacturer zbit_spinand_manufacturer;
/**
* struct spinand_op_variants - SPI NAND operation variants