<?xml version="1.0" encoding="ANSI_X3.4-1968" standalone="no"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968" /><title>Chapter 4. Basic board driver</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /><link rel="home" href="index.html" title="MTD NAND Driver Programming Interface" /><link rel="up" href="index.html" title="MTD NAND Driver Programming Interface" /><link rel="prev" href="ch03s02.html" title="Struct member identifiers [XXX]" /><link rel="next" href="ch04s02.html" title="Partition defines" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 4. Basic board driver</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="ch03s02.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="ch04s02.html">Next</a></td></tr></table><hr /></div><div class="chapter" title="Chapter 4. Basic board driver"><div class="titlepage"><div><div><h2 class="title"><a id="basicboarddriver"></a>Chapter 4. Basic board driver</h2></div></div></div><div class="toc"><p><b>Table of Contents</b></p><dl><dt><span class="sect1"><a href="ch04.html#Basic_defines">Basic defines</a></span></dt><dt><span class="sect1"><a href="ch04s02.html">Partition defines</a></span></dt><dt><span class="sect1"><a href="ch04s03.html">Hardware control function</a></span></dt><dt><span class="sect1"><a href="ch04s04.html">Device ready function</a></span></dt><dt><span class="sect1"><a href="ch04s05.html">Init function</a></span></dt><dt><span class="sect1"><a href="ch04s06.html">Exit function</a></span></dt></dl></div><p> For most boards it will be sufficient to provide just the basic functions and fill out some really board dependent members in the nand chip description structure. </p><div class="sect1" title="Basic defines"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="Basic_defines"></a>Basic defines</h2></div></div></div><p> At least you have to provide a mtd structure and a storage for the ioremap'ed chip address. You can allocate the mtd structure using kmalloc or you can allocate it statically. In case of static allocation you have to allocate a nand_chip structure too. </p><p> Kmalloc based example </p><pre class="programlisting"> static struct mtd_info *board_mtd; static unsigned long baseaddr; </pre><p> Static example </p><pre class="programlisting"> static struct mtd_info board_mtd; static struct nand_chip board_chip; static unsigned long baseaddr; </pre></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="ch03s02.html">Prev</a> </td><td width="20%" align="center"> </td><td width="40%" align="right"> <a accesskey="n" href="ch04s02.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Struct member identifiers [XXX] </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Partition defines</td></tr></table></div></body></html>
