156 lines
4.1 KiB
C
156 lines
4.1 KiB
C
/* $NetBSD: nand_toshiba.c,v 1.1 2017/11/09 21:50:15 jmcneill Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2012-2017 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Adam Hoka.
|
|
*
|
|
* 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``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 FOUNDATION OR CONTRIBUTORS
|
|
* 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 Toshiba NAND chips
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: nand_toshiba.c,v 1.1 2017/11/09 21:50:15 jmcneill Exp $");
|
|
|
|
#include "nand.h"
|
|
#include "onfi.h"
|
|
|
|
enum {
|
|
NAND_TOSHIBA_PAGEMASK = 0x3,
|
|
NAND_TOSHIBA_OOBMASK = 0x1 << 2,
|
|
NAND_TOSHIBA_BLOCKMASK = 0x3 << 4,
|
|
NAND_TOSHIBA_BITSMASK = 0x1 << 6
|
|
};
|
|
|
|
enum {
|
|
NAND_TOSHIBA_PLANENUMMASK = 0x3 << 2
|
|
};
|
|
|
|
int
|
|
nand_read_parameters_toshiba(device_t self, struct nand_chip * const chip)
|
|
{
|
|
uint8_t mfgrid;
|
|
uint8_t devid;
|
|
uint8_t params1;
|
|
uint8_t params2;
|
|
uint8_t params3;
|
|
|
|
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, ¶ms1);
|
|
nand_read_1(self, ¶ms2);
|
|
nand_read_1(self, ¶ms3);
|
|
nand_select(self, false);
|
|
|
|
aprint_debug_dev(self,
|
|
"ID Definition table: 0x%2.x 0x%2.x 0x%2.x 0x%2.x 0x%2.x\n",
|
|
mfgrid, devid, params1, params2, params3);
|
|
|
|
if (devid == 0xdc) {
|
|
/* From the documentation */
|
|
chip->nc_addr_cycles_column = 2;
|
|
chip->nc_addr_cycles_row = 3;
|
|
chip->nc_lun_blocks = 2048;
|
|
|
|
switch (params2 & NAND_TOSHIBA_PAGEMASK) {
|
|
case 0x0:
|
|
chip->nc_page_size = 1024;
|
|
break;
|
|
case 0x1:
|
|
chip->nc_page_size = 2048;
|
|
break;
|
|
case 0x2:
|
|
chip->nc_page_size = 4096;
|
|
break;
|
|
case 0x3:
|
|
chip->nc_page_size = 8192;
|
|
break;
|
|
default:
|
|
KASSERTMSG(false, "ID Data parsing bug detected!");
|
|
}
|
|
|
|
chip->nc_spare_size =
|
|
(8 << __SHIFTOUT(params2, NAND_TOSHIBA_OOBMASK)) *
|
|
(chip->nc_page_size >> 9);
|
|
|
|
switch ((params2 & NAND_TOSHIBA_BLOCKMASK) >> 4) {
|
|
case 0x0:
|
|
chip->nc_block_size = 64 * 1024;
|
|
break;
|
|
case 0x1:
|
|
chip->nc_block_size = 128 * 1024;
|
|
break;
|
|
case 0x2:
|
|
chip->nc_block_size = 256 * 1024;
|
|
break;
|
|
case 0x3:
|
|
chip->nc_block_size = 512 * 1024;
|
|
break;
|
|
default:
|
|
KASSERTMSG(false, "ID Data parsing bug detected!");
|
|
}
|
|
|
|
switch ((params2 & NAND_TOSHIBA_BITSMASK) >> 6) {
|
|
case 0x0:
|
|
/* its an 8bit chip */
|
|
break;
|
|
case 0x1:
|
|
chip->nc_flags |= NC_BUSWIDTH_16;
|
|
break;
|
|
default:
|
|
KASSERTMSG(false, "ID Data parsing bug detected!");
|
|
}
|
|
|
|
switch ((params3 & NAND_TOSHIBA_PLANENUMMASK) >> 2) {
|
|
case 0x0:
|
|
chip->nc_num_luns = 1;
|
|
break;
|
|
case 0x1:
|
|
chip->nc_num_luns = 2;
|
|
break;
|
|
case 0x2:
|
|
chip->nc_num_luns = 4;
|
|
break;
|
|
case 0x3:
|
|
chip->nc_num_luns = 8;
|
|
break;
|
|
default:
|
|
KASSERTMSG(false, "ID Data parsing bug detected!");
|
|
}
|
|
|
|
chip->nc_size = (uint64_t)chip->nc_lun_blocks *
|
|
chip->nc_block_size;
|
|
} else {
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|