From: "Roy.King" <ruy@neusoft.com>
To: linux-mtd@lists.infradead.org
Subject: about samsung nandflash maker id!
Date: Thu, 04 Mar 2004 14:36:18 +0800 [thread overview]
Message-ID: <1078382177.905.26.camel@KING> (raw)
I have a samsung nandflash, connect like that:
D0~D7： D0~D7
ALE： A3
CLE： A2
#CE： #CE6 （adds: 0x400000）
#WE： #WR
#RE： #RD
Ready： K54
and I use mtd nand drivers from uClinux-dist-20030522.
Firstly, I want test the nandflash Maker id and Device id
in nand_scan():
...
...
nand_select(); //just set *(volatile unsigned char *)0x400004 = 0xff;
*(volatile unsigned char *)0x400004 = 0x90;
*(volatile unsigned char *)0x400008 = 0x0;
nand_maf_id = *(volatile unsigned char *)0x400000;
nand_dev_id = *(volatile unsigned char *)0x400000;
...
...
But, when I print the nand_maf_id and nand_dev_id, they are always 0x41
and 0x42. according the Manufacture document, the maker id is 0xEC and
the device id is 0x53. I want know what else I must be done.
thanks!
reply other threads:[~2004-03-04 6:31 UTC|newest]
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