diff options
Diffstat (limited to 'drivers/mtd/nand/autcpu12.c')
| -rw-r--r-- | drivers/mtd/nand/autcpu12.c | 224 |
1 files changed, 0 insertions, 224 deletions
diff --git a/drivers/mtd/nand/autcpu12.c b/drivers/mtd/nand/autcpu12.c deleted file mode 100644 index a3c7fea404d..00000000000 --- a/drivers/mtd/nand/autcpu12.c +++ /dev/null @@ -1,224 +0,0 @@ -/* - * drivers/mtd/autcpu12.c - * - * Copyright (c) 2002 Thomas Gleixner <tgxl@linutronix.de> - * - * Derived from drivers/mtd/spia.c - * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com) - * - * $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 - * published by the Free Software Foundation. - * - * Overview: - * This is a device driver for the NAND flash device found on the - * autronix autcpu12 board, which is a SmartMediaCard. It supports - * 16MiB, 32MiB and 64MiB cards. - * - * - * 02-12-2002 TG Cleanup of module params - * - * 02-20-2002 TG adjusted for different rd/wr adress support - * added support for read device ready/busy line - * added page_cache - * - * 10-06-2002 TG 128K card support added - */ - -#include <linux/slab.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/mtd/mtd.h> -#include <linux/mtd/nand.h> -#include <linux/mtd/partitions.h> -#include <asm/io.h> -#include <asm/arch/hardware.h> -#include <asm/sizes.h> -#include <asm/arch/autcpu12.h> - -/* - * MTD structure for AUTCPU12 board - */ -static struct mtd_info *autcpu12_mtd = NULL; - -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 void __iomem * autcpu12_fio_base; - -/* - * Define partitions for flash devices - */ -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 }, -}; - -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 }, -}; - -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 }, -}; - -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 }, -}; - -#define NUM_PARTITIONS16K 2 -#define NUM_PARTITIONS32K 2 -#define NUM_PARTITIONS64K 2 -#define NUM_PARTITIONS128K 2 -/* - * hardware specific access to control-lines -*/ -static void autcpu12_hwcontrol(struct mtd_info *mtd, int cmd) -{ - - switch(cmd){ - - case NAND_CTL_SETCLE: (*(volatile unsigned char *) (autcpu12_io_base + autcpu12_pedr)) |= AUTCPU12_SMC_CLE; break; - case NAND_CTL_CLRCLE: (*(volatile unsigned char *) (autcpu12_io_base + autcpu12_pedr)) &= ~AUTCPU12_SMC_CLE; break; - - case NAND_CTL_SETALE: (*(volatile unsigned char *) (autcpu12_io_base + autcpu12_pedr)) |= AUTCPU12_SMC_ALE; break; - case NAND_CTL_CLRALE: (*(volatile unsigned char *) (autcpu12_io_base + autcpu12_pedr)) &= ~AUTCPU12_SMC_ALE; break; - - case NAND_CTL_SETNCE: (*(volatile unsigned char *) (autcpu12_fio_base + autcpu12_fio_ctrl)) = 0x01; break; - case NAND_CTL_CLRNCE: (*(volatile unsigned char *) (autcpu12_fio_base + autcpu12_fio_ctrl)) = 0x00; break; - } -} - -/* -* read device ready pin -*/ -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 - */ -int __init autcpu12_init (void) -{ - struct nand_chip *this; - int err = 0; - - /* Allocate memory for MTD device structure and private data */ - autcpu12_mtd = kmalloc (sizeof(struct mtd_info) + sizeof (struct nand_chip), - GFP_KERNEL); - if (!autcpu12_mtd) { - printk ("Unable to allocate AUTCPU12 NAND MTD device structure.\n"); - err = -ENOMEM; - goto out; - } - - /* map physical adress */ - autcpu12_fio_base = ioremap(autcpu12_fio_pbase,SZ_1K); - if(!autcpu12_fio_base){ - printk("Ioremap autcpu12 SmartMedia Card failed\n"); - err = -EIO; - goto out_mtd; - } - - /* Get pointer to private data */ - this = (struct nand_chip *) (&autcpu12_mtd[1]); - - /* Initialize structures */ - memset((char *) autcpu12_mtd, 0, sizeof(struct mtd_info)); - memset((char *) this, 0, sizeof(struct nand_chip)); - - /* Link the private data with the MTD structure */ - autcpu12_mtd->priv = this; - - /* Set address of NAND IO lines */ - this->IO_ADDR_R = autcpu12_fio_base; - this->IO_ADDR_W = autcpu12_fio_base; - this->hwcontrol = autcpu12_hwcontrol; - this->dev_ready = autcpu12_device_ready; - /* 20 us command delay time */ - 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, 1)) { - err = -ENXIO; - 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; - default: { - printk ("Unsupported SmartMedia device\n"); - err = -ENXIO; - goto out_ior; - } - } - goto out; - -out_ior: - iounmap((void *)autcpu12_fio_base); -out_mtd: - kfree (autcpu12_mtd); -out: - return err; -} - -module_init(autcpu12_init); - -/* - * Clean up routine - */ -#ifdef MODULE -static void __exit autcpu12_cleanup (void) -{ - /* Release resources, unregister device */ - nand_release (autcpu12_mtd); - - /* unmap physical adress */ - iounmap((void *)autcpu12_fio_base); - - /* Free the MTD device structure */ - kfree (autcpu12_mtd); -} -module_exit(autcpu12_cleanup); -#endif - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Thomas Gleixner <tglx@linutronix.de>"); -MODULE_DESCRIPTION("Glue layer for SmartMediaCard on autronix autcpu12"); |