/* $NetBSD: nand_micron.c,v 1.8 2012/11/03 12:12:48 ahoka Exp $ */
/*-
* Copyright (c) 2011 Department of Software Engineering,
* University of Szeged, Hungary
* Copyright (c) 2011 Adam Hoka <
[email protected]>
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by the Department of Software Engineering, University of Szeged, Hungary
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* Device specific functions for legacy Micron NAND chips
*
* Currently supported:
* MT29F2G08AACWP, MT29F4G08BACWP, MT29F8G08FACWP
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: nand_micron.c,v 1.8 2012/11/03 12:12:48 ahoka Exp $");
#include "nand.h"
#include "onfi.h"
#define MT29F2G08AAC 0xda
#define MT29F2G08ABC 0xaa
#define MT29F2G16AAC 0xca
#define MT29F2G16ABC 0xba
#define MT29F4G08BAC 0xdc
#define MT29F8G08FAC 0xdc /* each 4GB section */
#define MT29FxG_PARAM_WIDTH(p) (((p) >> 1) & __BIT(0))
#define MT29FxG_PAGESIZE (2 * 1024)
#define MT29FxG_BLOCK_PAGES 64 /* pages per block */
#define MT29FxG_BLOCKSIZE (128 * 1024) /* not including spares */
#define MT29FxG_SPARESIZE 64
struct nand_micron_devices {
const char *name;
uint8_t id;
uint8_t width; /* bus width */
u_int lun_blocks; /* number of blocks per LUN */
u_int num_luns; /* number LUNs */
};
static const struct nand_micron_devices nand_micron_devices[] = {
{ "MT29F2G08AAC", MT29F2G08AAC, 8, 2048, 1 },
{ "MT29F2G08ABC", MT29F2G08ABC, 8, 2048, 1 },
{ "MT29F2G16AAC", MT29F2G16AAC, 16, 2048, 1 },
{ "MT29F2G16ABC", MT29F2G16ABC, 16, 2048, 1 },
{ "MT29F4G08BAC", MT29F4G08BAC, 8, 4096, 1 },
#ifdef NOTYET
/* how do we recognize/match this? */
{ "MT29F8G08FAC", MT29F8G08FAC, 8, 4096, 2 },
#endif
};
static int mt29fxgx_parameters(device_t, struct nand_chip *, u_int8_t, uint8_t);
static const struct nand_micron_devices *
nand_micron_device_lookup(u_int8_t id)
{
for (int i=0; i < __arraycount(nand_micron_devices); i++)
if (nand_micron_devices[i].id == id)
return &nand_micron_devices[i];
return NULL;
}
int
nand_read_parameters_micron(device_t self, struct nand_chip * const chip)
{
uint8_t mfgrid;
uint8_t devid;
uint8_t dontcare;
uint8_t params;
KASSERT(chip->nc_manf_id == NAND_MFR_MICRON);
switch (chip->nc_manf_id) {
case NAND_MFR_MICRON:
break;
default:
return 1;
}
nand_select(self, true);
nand_command(self, ONFI_READ_ID);
nand_address(self, 0x00);
nand_read_1(self, &mfgrid);
nand_read_1(self, &devid);
nand_read_1(self, &dontcare);
nand_read_1(self, ¶ms);
nand_select(self, false);
KASSERT(chip->nc_manf_id == mfgrid);
switch(devid) {
case MT29F2G08AAC:
case MT29F2G08ABC:
case MT29F2G16AAC:
case MT29F2G16ABC:
case MT29F4G08BAC:
return mt29fxgx_parameters(self, chip, devid, params);
default:
aprint_error_dev(self, "unsupported device id %#x\n", devid);
return 1;
}
}
static int
mt29fxgx_parameters(device_t self, struct nand_chip * const chip,
u_int8_t devid, uint8_t params)
{
const struct nand_micron_devices *dp;
const char *vendor = "Micron";
dp = nand_micron_device_lookup(devid);
if (dp == NULL) {
aprint_error_dev(self, "unknown device id %#x\n", devid);
return 1;
}
/*
* MT29FxGx params across models are the same
* except for luns, blocks per lun, and bus width
* (and voltage)
*/
chip->nc_addr_cycles_column = 2; /* XXX */
chip->nc_addr_cycles_row = 3; /* XXX */
if (dp->width == 16)
chip->nc_flags |= NC_BUSWIDTH_16;
chip->nc_page_size = MT29FxG_PAGESIZE;
chip->nc_block_size = MT29FxG_BLOCK_PAGES * MT29FxG_PAGESIZE;
chip->nc_spare_size = MT29FxG_SPARESIZE;
chip->nc_lun_blocks = dp->lun_blocks;
chip->nc_num_luns = dp->num_luns;
chip->nc_size = MT29FxG_PAGESIZE * MT29FxG_BLOCK_PAGES *
dp->lun_blocks * dp->num_luns;
aprint_normal_dev(self, "%s %s, size %" PRIu64 "MB\n",
vendor, dp->name, chip->nc_size >> 20);
return 0;
}
