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<DIV id=context><A
href="http://weibing.blogbus.com/logs/4418970.html"><< u-boot
1.1.5 移植成功</A> | <A href="http://weibing.blogbus.com/">首 页</A> | <A
href="http://weibing.blogbus.com/logs/4453804.html">BusyBox v1.4.1 移植
s3c2410 >></A></DIV>
<DIV class=entry>
<DIV id=entryHeader>
<H2><A href="http://weibing.blogbus.com/logs/4437246.html#">DM9000
终于跑起来</A></H2>
<DIV class=date>2007-02-02</DIV></DIV><BR>
<DIV class=entryBody>
<P>
一个数字问题，花费两天时间，真顶不顺。如果这个所谓的革新公司提供实验板的原理图就好了，可惜...我怀疑他们的板都不知从那里抄来的，也确实佩服他们的销售和我们学校的领导，多么成功的交易啊...</P>
<P> 好，问题解决，留下笔记。Linux 2.6.19.2 ，参考 mach-vr1000.c
和网上众多例子... </P>
<P>vi arch/arm/mach-s3c2410/mach-smdk2410.c ，加入：</P>
<P>static struct resource s3c_d9k_resource[] =
{<BR> [0] =
{<BR>
.start = 0x0A000000 +
0x300,<BR>
.end = 0x0A000000 + 0x300 +
0x03,<BR>
.flags = IORESOURCE_MEM<BR>
},<BR> [1] =
{<BR>
.start = 0x0A000000 + 0x300 + <FONT
color=#ff0000>0x4</FONT>,<BR>
.end = 0x0A000000 + 0x300 + <FONT color=#ff0000>0x4</FONT> +
0x7f,<BR>
.flags = IORESOURCE_MEM<BR>
},<BR> [2] =
{<BR>
.start =
IRQ_EINT0,<BR>
.end =
IRQ_EINT0,<BR>
.flags = IORESOURCE_IRQ<BR>
}<BR>};<BR>static struct dm9000_plat_data s3c_device_d9k_platdata =
{<BR> .flags=
DM9000_PLATF_16BITONLY<BR>};</P>
<P>struct platform_device s3c_device_d9k =
{<BR> .name=
"dm9000",<BR> .id=
0,<BR> .num_resources=
ARRAY_SIZE(s3c_d9k_resource),<BR>
.resource= s3c_d9k_resource,<BR> .dev=
{<BR>
.platform_data =
&s3c_device_d9k_platdata,<BR>
}<BR>};</P>
<P>修改static struct platform_device *smdk2410_devices[] __initdata =
{<BR>
&s3c_device_usb,<BR>
&s3c_device_lcd,<BR>
&s3c_device_wdt,<BR>
&s3c_device_i2c,<BR>
&s3c_device_iis,<BR> <FONT
color=#ffcc00><FONT
color=#ff9900>&s3c_device_d9k</FONT><BR></FONT>};<BR>
红色部分是关键，网上的 vr1000.c
和网上大多例子此处都为0x40。经查证，是因为DM9000A的地址线和数据线是复用的，它是通过92脚(CMD)来区分。如果CMD接到s3c2410的A2脚， 则数据端口的地址
＝ 地址端口 ＋ 0x04 。那如果是0x40的话，他的CMD应该是接到s3c2410的A7脚。</P>
<P> 奇怪的是 DM9000
在u-boot下也算工作正常，翻查代码，原来有这么两句：</P>
<P>#define DM9000_IO CONFIG_DM9000_BASE<BR>#define
DM9000_DATA (CONFIG_DM9000_BASE+4)</P>
<P>唉，一切只能怪自己不仔细，客观的说，是经验不足 ^_^</P>
<P> 哈哈，无论如何，终于摆脱 read wrong id 的恶梦，可是，马上又遇到可恶的
IRQ_EINT0 ，一申请0号中断就死机...</P><BR>
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<DIV class=tags>Tag: <A href="http://weibing.blogbus.com/s1013244/">ARM</A> <A
href="http://weibing.blogbus.com/s23857/">嵌入式</A> </DIV><BR>
<DIV class=entryFooter><A href="mailto:besto@21cn.net">weibing</A> @ 21:04:47 |
<A onclick="OpenTrackback(this.href); return false"
href="http://weibing.blogbus.com/logs/t4437246.html">引用 0</A> | <A
href="http://www.blogbus.com/user/?mm=Article&aa=Edit&blogid=1223936&id=4437246">编辑</A></DIV></DIV><BR>
<DIV id=comments>
<H2>评论</H2>
<UL>
<LI>
<P class=commentBody>老兄：你在调dm9000，那太好了<BR>我的dm9000接的是nGCS1<BR>CMD
接的是A2，<BR>BASE = 0X0200 0000<BR>IO = 0X0200 0300 <BR>DATA = 0X0200
0304<BR>没错把，连线是32位的，dm9000的EEDO<BR>pin也上拉了，在include/configs 中的头文件里也定义了
DM9000_USE_32BUS 1<BR>可现在只能发现dm9000，但认为是16bit的，然后说，not link of
ethernet<BR>无语了，没有头绪，支个招吧，老兄<BR>
<DIV
class=recmtBody>weibing 回复 philip 说：<BR>呵呵，这个是几个月之前的事了，nGCS1不会是0X0200
0000吧？ <BR>硬件我不是很熟，在U-BOOT里我的也是16bit的，也会提示not link of
ethernet，但可以使用，可能与之前实验箱的连线有关。现在改用了朗成的开发板，一直都很好，就没有再跳过了...<BR><SPAN
class=time>(2007-05-31 17:12:11)</SPAN></DIV>
<P></P>
<DIV class=commentPost><A href="mailto:">philip</A> (<A href="http:///"></A>)
发表于 2007-05-31 14:21:09</DIV>
<LI>
<P class=commentBody>怎么看到不完整<BR>
<DIV
class=recmtBody>weibing 回复 gclu 说：<BR>唉，确实不完整，申请irq0仍然有问题，跟踪了很多天，发现问题与其他人不同，我的intmod是正常的，但一request_irq就死在unmask的死循环里...<BR><SPAN
class=time>(2007-03-07 23:25:35)</SPAN></DIV>
<P></P>
<DIV class=commentPost><A href="mailto:lgcgc">gclu</A> (<A
href="http:///"></A>) 发表于 2007-03-07 19:02:49</DIV></LI></UL></DIV>
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