Messages in this thread | | | Date | Tue, 7 Sep 2010 14:37:41 +0800 | Subject | Fwd: anyone can help me about nand_get_flash_type | From | Tony Wan <> |
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Anyone can help me with this problem? even some ideas how to debug and find the problem? Thank you!
---------- Forwarded message ---------- From: Tony Wan <visual2me@gmail.com> Date: Wed, Aug 25, 2010 at 5:36 PM Subject: anyone can help me about nand_get_flash_type To: linux-mtd@lists.infradead.org
Hi there,
I got an ARM device from Marvell with a NAND rom, running Linux 2.6.22.18. These days I'm working on upgrading the kernel to 2.6.31.8. After the upgrade, all devices work well except the NAND rom. I found it's because that the device and manufacturer IDs cannot be retrieved correctly in nand_get_flash_type. In 2.6.22.18, the IDs can be retrieved as expected; but in 2.6.31.8, the IDs always be 0, which leads to an error in nand_scan.
I'm a definitely newbie with MTD, and currently have no idea about the problem. Except IO_ADDR_R & IO_ADDR_W are remapped to different addresses, I can't find any differences between the 2 versions from the system log -- may it be the reason? Anyone can give me some tips about this problem -- how to fix it or how to debug? Any suggestions will be appreciated.
-- Best regards, Tony Wan
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