To quote Mark: I think it's safe to delete the driver. The mimc200 unit is now basically obsolete and there'll be no new development on it. Becides, it grabs the 0 misc minor number, when it never asked for it, conflicting with the logitech bus mouse driver. Cc: Mark Jackson <mpfj@mimc.co.uk> Cc: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Cc: Lucas De Marchi <lucas.de.marchi@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>tirimbino
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obj-y += setup.o flash.o fram.o
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obj-y += setup.o flash.o
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/*
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* FRAM driver for MIMC200 board |
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* |
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* Copyright 2008 Mark Jackson <mpfj@mimc.co.uk> |
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* |
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* This module adds *very* simply support for the system's FRAM device. |
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* At the moment, this is hard-coded to the MIMC200 platform, and only |
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* supports mmap(). |
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*/ |
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#define FRAM_VERSION "1.0" |
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#include <linux/miscdevice.h> |
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#include <linux/module.h> |
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#include <linux/proc_fs.h> |
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#include <linux/mm.h> |
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#include <linux/io.h> |
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#define FRAM_BASE 0xac000000 |
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#define FRAM_SIZE 0x20000 |
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/*
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* The are the file operation function for user access to /dev/fram |
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*/ |
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static int fram_mmap(struct file *filp, struct vm_area_struct *vma) |
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{ |
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int ret; |
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ret = remap_pfn_range(vma, |
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vma->vm_start, |
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virt_to_phys((void *)((unsigned long)FRAM_BASE)) >> PAGE_SHIFT, |
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vma->vm_end-vma->vm_start, |
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PAGE_SHARED); |
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if (ret != 0) |
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return -EAGAIN; |
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return 0; |
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} |
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static const struct file_operations fram_fops = { |
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.owner = THIS_MODULE, |
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.mmap = fram_mmap, |
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.llseek = noop_llseek, |
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}; |
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#define FRAM_MINOR 0 |
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static struct miscdevice fram_dev = { |
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FRAM_MINOR, |
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"fram", |
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&fram_fops |
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}; |
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static int __init |
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fram_init(void) |
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{ |
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int ret; |
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ret = misc_register(&fram_dev); |
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if (ret) { |
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printk(KERN_ERR "fram: can't misc_register on minor=%d\n", |
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FRAM_MINOR); |
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return ret; |
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} |
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printk(KERN_INFO "FRAM memory driver v" FRAM_VERSION "\n"); |
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return 0; |
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} |
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static void __exit |
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fram_cleanup_module(void) |
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{ |
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misc_deregister(&fram_dev); |
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} |
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module_init(fram_init); |
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module_exit(fram_cleanup_module); |
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MODULE_LICENSE("GPL"); |
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MODULE_ALIAS_MISCDEV(FRAM_MINOR); |
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