*
* Derived from drivers/mtd/spia.c
* Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
- *
- * $Id: autcpu12.c,v 1.11 2003/06/04 17:04:09 gleixner Exp $
+ *
+ * $Id: autcpu12.c,v 1.23 2005/11/07 11:14:30 gleixner Exp $
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
*
* Overview:
* This is a device driver for the NAND flash device found on the
- * autronix autcpu12 board, which is a SmartMediaCard. It supports
- * 16MB, 32MB and 64MB cards.
+ * autronix autcpu12 board, which is a SmartMediaCard. It supports
+ * 16MiB, 32MiB and 64MiB cards.
*
*
* 02-12-2002 TG Cleanup of module params
* 10-06-2002 TG 128K card support added
*/
-#include <linux/version.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/module.h>
*/
static struct mtd_info *autcpu12_mtd = NULL;
-/*
- * Module stuff
- */
-#if LINUX_VERSION_CODE < 0x20212 && defined(MODULE)
-#define autcpu12_init init_module
-#define autcpu12_cleanup cleanup_module
-#endif
-
static int autcpu12_io_base = CS89712_VIRT_BASE;
static int autcpu12_fio_pbase = AUTCPU12_PHYS_SMC;
static int autcpu12_fio_ctrl = AUTCPU12_SMC_SELECT_OFFSET;
static int autcpu12_pedr = AUTCPU12_SMC_PORT_OFFSET;
-static int autcpu12_fio_base;
-
-#ifdef MODULE
-MODULE_PARM(autcpu12_fio_pbase, "i");
-MODULE_PARM(autcpu12_fio_ctrl, "i");
-MODULE_PARM(autcpu12_pedr, "i");
-
-__setup("autcpu12_fio_pbase=",autcpu12_fio_pbase);
-__setup("autcpu12_fio_ctrl=",autcpu12_fio_ctrl);
-__setup("autcpu12_pedr=",autcpu12_pedr);
-#endif
+static void __iomem * autcpu12_fio_base;
/*
* Define partitions for flash devices
*/
-extern struct nand_oobinfo jffs2_oobinfo;
-
static struct mtd_partition partition_info16k[] = {
- { .name = "AUTCPU12 flash partition 1",
- .offset = 0,
- .size = 8 * SZ_1M },
- { .name = "AUTCPU12 flash partition 2",
- .offset = 8 * SZ_1M,
- .size = 8 * SZ_1M },
+ { .name = "AUTCPU12 flash partition 1",
+ .offset = 0,
+ .size = 8 * SZ_1M },
+ { .name = "AUTCPU12 flash partition 2",
+ .offset = 8 * SZ_1M,
+ .size = 8 * SZ_1M },
};
static struct mtd_partition partition_info32k[] = {
- { .name = "AUTCPU12 flash partition 1",
- .offset = 0,
- .size = 8 * SZ_1M },
- { .name = "AUTCPU12 flash partition 2",
- .offset = 8 * SZ_1M,
- .size = 24 * SZ_1M },
+ { .name = "AUTCPU12 flash partition 1",
+ .offset = 0,
+ .size = 8 * SZ_1M },
+ { .name = "AUTCPU12 flash partition 2",
+ .offset = 8 * SZ_1M,
+ .size = 24 * SZ_1M },
};
static struct mtd_partition partition_info64k[] = {
- { .name = "AUTCPU12 flash partition 1",
- .offset = 0,
- .size = 16 * SZ_1M },
- { .name = "AUTCPU12 flash partition 2",
- .offset = 16 * SZ_1M,
- .size = 48 * SZ_1M },
+ { .name = "AUTCPU12 flash partition 1",
+ .offset = 0,
+ .size = 16 * SZ_1M },
+ { .name = "AUTCPU12 flash partition 2",
+ .offset = 16 * SZ_1M,
+ .size = 48 * SZ_1M },
};
static struct mtd_partition partition_info128k[] = {
- { .name = "AUTCPU12 flash partition 1",
- .offset = 0,
- .size = 16 * SZ_1M },
- { .name = "AUTCPU12 flash partition 2",
- .offset = 16 * SZ_1M,
- .size = 112 * SZ_1M },
+ { .name = "AUTCPU12 flash partition 1",
+ .offset = 0,
+ .size = 16 * SZ_1M },
+ { .name = "AUTCPU12 flash partition 2",
+ .offset = 16 * SZ_1M,
+ .size = 112 * SZ_1M },
};
#define NUM_PARTITIONS16K 2
#define NUM_PARTITIONS32K 2
#define NUM_PARTITIONS64K 2
#define NUM_PARTITIONS128K 2
-/*
+/*
* hardware specific access to control-lines
*/
-void autcpu12_hwcontrol(int cmd)
+static void autcpu12_hwcontrol(struct mtd_info *mtd, int cmd)
{
switch(cmd){
/*
* read device ready pin
*/
-int autcpu12_device_ready(void)
+int autcpu12_device_ready(struct mtd_info *mtd)
{
return ( (*(volatile unsigned char *) (autcpu12_io_base + autcpu12_pedr)) & AUTCPU12_SMC_RDY) ? 1 : 0;
}
+
/*
* Main initialization routine
*/
}
/* map physical adress */
- autcpu12_fio_base=(unsigned long)ioremap(autcpu12_fio_pbase,SZ_1K);
+ autcpu12_fio_base = ioremap(autcpu12_fio_pbase,SZ_1K);
if(!autcpu12_fio_base){
printk("Ioremap autcpu12 SmartMedia Card failed\n");
err = -EIO;
this->hwcontrol = autcpu12_hwcontrol;
this->dev_ready = autcpu12_device_ready;
/* 20 us command delay time */
- this->chip_delay = 20;
+ this->chip_delay = 20;
this->eccmode = NAND_ECC_SOFT;
+ /* Enable the following for a flash based bad block table */
+ /*
+ this->options = NAND_USE_FLASH_BBT;
+ */
+ this->options = NAND_USE_FLASH_BBT;
+
/* Scan to find existance of the device */
- if (nand_scan (autcpu12_mtd)) {
+ if (nand_scan (autcpu12_mtd, 1)) {
err = -ENXIO;
goto out_ior;
}
- /* Allocate memory for internal data buffer */
- this->data_buf = kmalloc (sizeof(u_char) * (autcpu12_mtd->oobblock + autcpu12_mtd->oobsize), GFP_KERNEL);
- if (!this->data_buf) {
- printk ("Unable to allocate NAND data buffer for AUTCPU12.\n");
- err = -ENOMEM;
- goto out_ior;
- }
-
/* Register the partitions */
switch(autcpu12_mtd->size){
case SZ_16M: add_mtd_partitions(autcpu12_mtd, partition_info16k, NUM_PARTITIONS16K); break;
case SZ_32M: add_mtd_partitions(autcpu12_mtd, partition_info32k, NUM_PARTITIONS32K); break;
- case SZ_64M: add_mtd_partitions(autcpu12_mtd, partition_info64k, NUM_PARTITIONS64K); break;
- case SZ_128M: add_mtd_partitions(autcpu12_mtd, partition_info128k, NUM_PARTITIONS128K); break;
+ case SZ_64M: add_mtd_partitions(autcpu12_mtd, partition_info64k, NUM_PARTITIONS64K); break;
+ case SZ_128M: add_mtd_partitions(autcpu12_mtd, partition_info128k, NUM_PARTITIONS128K); break;
default: {
- printk ("Unsupported SmartMedia device\n");
+ printk ("Unsupported SmartMedia device\n");
err = -ENXIO;
- goto out_buf;
+ goto out_ior;
}
}
goto out;
-out_buf:
- kfree (this->data_buf);
out_ior:
iounmap((void *)autcpu12_fio_base);
out_mtd:
#ifdef MODULE
static void __exit autcpu12_cleanup (void)
{
- struct nand_chip *this = (struct nand_chip *) &autcpu12_mtd[1];
-
- /* Unregister partitions */
- del_mtd_partitions(autcpu12_mtd);
-
- /* Unregister the device */
- del_mtd_device (autcpu12_mtd);
-
- /* Free internal data buffers */
- kfree (this->data_buf);
+ /* Release resources, unregister device */
+ nand_release (autcpu12_mtd);
/* unmap physical adress */
iounmap((void *)autcpu12_fio_base);
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