mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-09 04:36:16 +09:00
06e9f7df05
For the NAND chips on the TQM8548 modules, a special chip-select logic is used. It uses dedicated address lines to be set via UPM machine address register (mar). This patch adds such support to the FSL-UPM driver. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
45 lines
961 B
C
45 lines
961 B
C
/*
|
|
* FSL UPM NAND driver
|
|
*
|
|
* Copyright (C) 2007 MontaVista Software, Inc.
|
|
* Anton Vorontsov <avorontsov@ru.mvista.com>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef __LINUX_MTD_NAND_FSL_UPM
|
|
#define __LINUX_MTD_NAND_FSL_UPM
|
|
|
|
#include <linux/mtd/nand.h>
|
|
|
|
struct fsl_upm {
|
|
void __iomem *mdr;
|
|
void __iomem *mxmr;
|
|
void __iomem *mar;
|
|
void __iomem *io_addr;
|
|
};
|
|
|
|
struct fsl_upm_nand {
|
|
struct fsl_upm upm;
|
|
|
|
int width;
|
|
int upm_cmd_offset;
|
|
int upm_addr_offset;
|
|
int upm_mar_chip_offset;
|
|
int wait_pattern;
|
|
int (*dev_ready)(int chip_nr);
|
|
int chip_delay;
|
|
int chip_offset;
|
|
int chip_nr;
|
|
|
|
/* no need to fill */
|
|
int last_ctrl;
|
|
};
|
|
|
|
extern int fsl_upm_nand_init(struct nand_chip *chip, struct fsl_upm_nand *fun);
|
|
|
|
#endif
|