From: "carl liao" <carlliao@21cn.com>
To: "linux mtd" <linux-mtd@lists.infradead.org>
Subject: 2.6.10 nand driver -- drivers/mtd/nand/au1550nd.c
Date: Mon, 18 Apr 2005 22:26:04 +0800 [thread overview]
Message-ID: <d3949581777141.19232@send5.inner-21cn.com> (raw)
I am confused by the codes in 2.6.10 nand driver drivers/mtd/nand/au1550nd.c:
407: au_writel((1<<28) | (NAND_PHYS_ADDR>>4) |
408: (((NAND_PHYS_ADDR + 0x1000)-1) & (0x3fff<<18)>>18),
409: MEM_STADDR1);
410: au_sync();
411:
412: p_nand = ioremap(NAND_PHYS_ADDR, 0x1000);
I think it should be like the following assuming 4KB NAND:
au_writel((1<<28) | (NAND_PHYS_ADDR>>4) |
(~(0x1000-1) & (0x3fff<<18) >> 18),
MEM_STADDR1);
Could someone give me a hint? Thanks!
reply other threads:[~2005-04-18 14:27 UTC|newest]
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