mirror of
https://xff.cz/git/u-boot/
synced 2025-10-31 18:35:42 +01:00
cd93d625fd
Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
154 lines
3.9 KiB
C
154 lines
3.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (c) 2017 exceet electronics GmbH
|
|
*
|
|
* Authors:
|
|
* Frieder Schrempf <frieder.schrempf@exceet.de>
|
|
* Boris Brezillon <boris.brezillon@bootlin.com>
|
|
*/
|
|
|
|
#ifndef __UBOOT__
|
|
#include <malloc.h>
|
|
#include <linux/device.h>
|
|
#include <linux/kernel.h>
|
|
#endif
|
|
#include <linux/bitops.h>
|
|
#include <linux/mtd/spinand.h>
|
|
|
|
#define SPINAND_MFR_WINBOND 0xEF
|
|
|
|
#define WINBOND_CFG_BUF_READ BIT(3)
|
|
|
|
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 w25m02gv_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 w25m02gv_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 w25m02gv_ooblayout = {
|
|
.ecc = w25m02gv_ooblayout_ecc,
|
|
.rfree = w25m02gv_ooblayout_free,
|
|
};
|
|
|
|
static int w25m02gv_select_target(struct spinand_device *spinand,
|
|
unsigned int target)
|
|
{
|
|
struct spi_mem_op op = SPI_MEM_OP(SPI_MEM_OP_CMD(0xc2, 1),
|
|
SPI_MEM_OP_NO_ADDR,
|
|
SPI_MEM_OP_NO_DUMMY,
|
|
SPI_MEM_OP_DATA_OUT(1,
|
|
spinand->scratchbuf,
|
|
1));
|
|
|
|
*spinand->scratchbuf = target;
|
|
return spi_mem_exec_op(spinand->slave, &op);
|
|
}
|
|
|
|
static const struct spinand_info winbond_spinand_table[] = {
|
|
SPINAND_INFO("W25M02GV", 0xAB,
|
|
NAND_MEMORG(1, 2048, 64, 64, 1024, 1, 1, 2),
|
|
NAND_ECCREQ(1, 512),
|
|
SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
|
|
&write_cache_variants,
|
|
&update_cache_variants),
|
|
0,
|
|
SPINAND_ECCINFO(&w25m02gv_ooblayout, NULL),
|
|
SPINAND_SELECT_TARGET(w25m02gv_select_target)),
|
|
SPINAND_INFO("W25N01GV", 0xAA,
|
|
NAND_MEMORG(1, 2048, 64, 64, 1024, 1, 1, 1),
|
|
NAND_ECCREQ(1, 512),
|
|
SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
|
|
&write_cache_variants,
|
|
&update_cache_variants),
|
|
0,
|
|
SPINAND_ECCINFO(&w25m02gv_ooblayout, NULL)),
|
|
};
|
|
|
|
/**
|
|
* winbond_spinand_detect - initialize device related part in spinand_device
|
|
* struct if it is a Winbond device.
|
|
* @spinand: SPI NAND device structure
|
|
*/
|
|
static int winbond_spinand_detect(struct spinand_device *spinand)
|
|
{
|
|
u8 *id = spinand->id.data;
|
|
int ret;
|
|
|
|
/*
|
|
* Winbond SPI NAND read ID need a dummy byte,
|
|
* so the first byte in raw_id is dummy.
|
|
*/
|
|
if (id[1] != SPINAND_MFR_WINBOND)
|
|
return 0;
|
|
|
|
ret = spinand_match_and_init(spinand, winbond_spinand_table,
|
|
ARRAY_SIZE(winbond_spinand_table), id[2]);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int winbond_spinand_init(struct spinand_device *spinand)
|
|
{
|
|
struct nand_device *nand = spinand_to_nand(spinand);
|
|
unsigned int i;
|
|
|
|
/*
|
|
* Make sure all dies are in buffer read mode and not continuous read
|
|
* mode.
|
|
*/
|
|
for (i = 0; i < nand->memorg.ntargets; i++) {
|
|
spinand_select_target(spinand, i);
|
|
spinand_upd_cfg(spinand, WINBOND_CFG_BUF_READ,
|
|
WINBOND_CFG_BUF_READ);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct spinand_manufacturer_ops winbond_spinand_manuf_ops = {
|
|
.detect = winbond_spinand_detect,
|
|
.init = winbond_spinand_init,
|
|
};
|
|
|
|
const struct spinand_manufacturer winbond_spinand_manufacturer = {
|
|
.id = SPINAND_MFR_WINBOND,
|
|
.name = "Winbond",
|
|
.ops = &winbond_spinand_manuf_ops,
|
|
};
|