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nand flash support for s3c64xx 

Identical to the existing 2412/2443 support except for the base address
and NFCONF value (bit 2 is reserved and should be written as 1 ref UM).

Tested on a s3c6410 board, but controller is identical in 6400/6410
except for 8bit MLC ECC support in 6410 which isn't supported by the
driver.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
This commit is contained in:
Peter Korsgaard 2010-01-11 22:59:29 +01:00 committed by Øyvind Harboe
parent 24653c950a
commit 000a1cfd01
4 changed files with 81 additions and 1 deletions
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3
doc/openocd.texi
View File

@ -5041,7 +5041,8 @@ change any behavior.
@deffnx {NAND Driver} s3c2412
@deffnx {NAND Driver} s3c2440
@deffnx {NAND Driver} s3c2443
These S3C24xx family controllers don't have any special
@deffnx {NAND Driver} s3c6400
These S3C family controllers don't have any special
@command{nand device} options, and don't define any
specialized commands.
At this writing, their drivers don't include @code{write_page}

1
src/flash/nand/Makefile.am
View File

@ -25,6 +25,7 @@ NAND_DRIVERS = \
s3c2412.c \
s3c2440.c \
s3c2443.c \
s3c6400.c \
at91sam9.c
noinst_HEADERS = \

2
src/flash/nand/driver.c
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@ -36,6 +36,7 @@ extern struct nand_flash_controller s3c2410_nand_controller;
extern struct nand_flash_controller s3c2412_nand_controller;
extern struct nand_flash_controller s3c2440_nand_controller;
extern struct nand_flash_controller s3c2443_nand_controller;
extern struct nand_flash_controller s3c6400_nand_controller;
extern struct nand_flash_controller imx31_nand_flash_controller;
extern struct nand_flash_controller at91sam9_nand_controller;
@ -51,6 +52,7 @@ static struct nand_flash_controller *nand_flash_controllers[] =
&s3c2412_nand_controller,
&s3c2440_nand_controller,
&s3c2443_nand_controller,
&s3c6400_nand_controller,
&imx31_nand_flash_controller,
&at91sam9_nand_controller,
/* &boundary_scan_nand_controller, */

76
src/flash/nand/s3c6400.c Normal file
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@ -0,0 +1,76 @@
/***************************************************************************
* Copyright (C) 2010 by Peter Korsgaard <jacmet@sunsite.dk> *
* Heavily based on s3c2412.c by Ben Dooks <ben@fluff.org> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "s3c24xx.h"
/* s3c64xx uses another base address for the nand controller than 24xx */
#undef S3C2410_NFREG
#define S3C2410_NFREG(x) ((x) + 0x70200000)
NAND_DEVICE_COMMAND_HANDLER(s3c6400_nand_device_command)
{
struct s3c24xx_nand_controller *info;
CALL_S3C24XX_DEVICE_COMMAND(nand, &info);
/* fill in the address fields for the core device */
info->cmd = S3C2440_NFCMD;
info->addr = S3C2440_NFADDR;
info->data = S3C2440_NFDATA;
info->nfstat = S3C2412_NFSTAT;
return ERROR_OK;
}
static int s3c6400_init(struct nand_device *nand)
{
struct s3c24xx_nand_controller *s3c24xx_info = nand->controller_priv;
struct target *target = s3c24xx_info->target;
target_write_u32(target, S3C2410_NFCONF,
S3C2440_NFCONF_TACLS(3) |
S3C2440_NFCONF_TWRPH0(7) |
S3C2440_NFCONF_TWRPH1(7) | 4);
target_write_u32(target, S3C2440_NFCONT,
S3C2412_NFCONT_INIT_MAIN_ECC |
S3C2440_NFCONT_ENABLE);
return ERROR_OK;
}
struct nand_flash_controller s3c6400_nand_controller = {
.name = "s3c6400",
.nand_device_command = &s3c6400_nand_device_command,
.init = &s3c6400_init,
.reset = &s3c24xx_reset,
.command = &s3c24xx_command,
.address = &s3c24xx_address,
.write_data = &s3c24xx_write_data,
.read_data = &s3c24xx_read_data,
.write_page = s3c24xx_write_page,
.read_page = s3c24xx_read_page,
.write_block_data = &s3c2440_write_block_data,
.read_block_data = &s3c2440_read_block_data,
.controller_ready = &s3c24xx_controller_ready,
.nand_ready = &s3c2440_nand_ready,
};