diff options
author | Zachary T Welch <zw@superlucidity.net> | 2009-12-01 22:37:11 -0800 |
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committer | Zachary T Welch <zw@superlucidity.net> | 2009-12-02 23:27:09 -0800 |
commit | e1ec02bb055fa356b058dddc0a15710e0fdc9870 (patch) | |
tree | 62110f0c0262314d7d0d9312e46f3113441a48ea /src/flash/s3c2410_nand.c | |
parent | d5e4e23f9a5b1074cd298d5386e638a9fa78b1ad (diff) |
move nand drivers to src/flash/nand/
Moves NAND drivers to src/flash/nand/.
Adds src/flash/nand/Makefile.am.
Builds libocdflashnand.la.
Diffstat (limited to 'src/flash/s3c2410_nand.c')
-rw-r--r-- | src/flash/s3c2410_nand.c | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/src/flash/s3c2410_nand.c b/src/flash/s3c2410_nand.c deleted file mode 100644 index ca50c994..00000000 --- a/src/flash/s3c2410_nand.c +++ /dev/null @@ -1,123 +0,0 @@ -/*************************************************************************** - * Copyright (C) 2007, 2008 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. * - ***************************************************************************/ - -/* - * S3C2410 OpenOCD NAND Flash controller support. - * - * Many thanks to Simtec Electronics for sponsoring this work. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include "s3c24xx_nand.h" - -NAND_DEVICE_COMMAND_HANDLER(s3c2410_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 = S3C2410_NFCMD; - info->addr = S3C2410_NFADDR; - info->data = S3C2410_NFDATA; - info->nfstat = S3C2410_NFSTAT; - - return ERROR_OK; -} - -static int s3c2410_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, - S3C2410_NFCONF_EN | S3C2410_NFCONF_TACLS(3) | - S3C2410_NFCONF_TWRPH0(5) | S3C2410_NFCONF_TWRPH1(3)); - - return ERROR_OK; -} - -static int s3c2410_write_data(struct nand_device *nand, uint16_t data) -{ - struct s3c24xx_nand_controller *s3c24xx_info = nand->controller_priv; - struct target *target = s3c24xx_info->target; - - if (target->state != TARGET_HALTED) { - LOG_ERROR("target must be halted to use S3C24XX NAND flash controller"); - return ERROR_NAND_OPERATION_FAILED; - } - - target_write_u32(target, S3C2410_NFDATA, data); - return ERROR_OK; -} - -static int s3c2410_read_data(struct nand_device *nand, void *data) -{ - struct s3c24xx_nand_controller *s3c24xx_info = nand->controller_priv; - struct target *target = s3c24xx_info->target; - - if (target->state != TARGET_HALTED) { - LOG_ERROR("target must be halted to use S3C24XX NAND flash controller"); - return ERROR_NAND_OPERATION_FAILED; - } - - target_read_u8(target, S3C2410_NFDATA, data); - return ERROR_OK; -} - -static int s3c2410_nand_ready(struct nand_device *nand, int timeout) -{ - struct s3c24xx_nand_controller *s3c24xx_info = nand->controller_priv; - struct target *target = s3c24xx_info->target; - uint8_t status; - - if (target->state != TARGET_HALTED) { - LOG_ERROR("target must be halted to use S3C24XX NAND flash controller"); - return ERROR_NAND_OPERATION_FAILED; - } - - do { - target_read_u8(target, S3C2410_NFSTAT, &status); - - if (status & S3C2410_NFSTAT_BUSY) - return 1; - - alive_sleep(1); - } while (timeout-- > 0); - - return 0; -} - -struct nand_flash_controller s3c2410_nand_controller = { - .name = "s3c2410", - .nand_device_command = &s3c2410_nand_device_command, - .init = &s3c2410_init, - .reset = &s3c24xx_reset, - .command = &s3c24xx_command, - .address = &s3c24xx_address, - .write_data = &s3c2410_write_data, - .read_data = &s3c2410_read_data, - .write_page = s3c24xx_write_page, - .read_page = s3c24xx_read_page, - .controller_ready = &s3c24xx_controller_ready, - .nand_ready = &s3c2410_nand_ready, - }; |