[U-Boot-Users] I have one question about MTD.
Dear all, How could I turn on the MTD support in u-boot? I don’t know how to do that? I want to use the setenv command to set (assume I used 32MB Flash) mtd0 0x00000000,0x00040000 → u-boot mtd1 0x00040000,0x000E0000 → kernel mtd2 0x000E0000,0x01F00000 → filesystem mtd3 0x01F00000,0x01FF0000 → reserved the left space 0x01FF0000,0x02000000 → for env Then the kernel will get those parameters to set MTD. Can I do that and not need to modify u-boot ? Your reply and support will be highly appreciated.
Thank you for your time and attention
Jacob Chan Jacob_chan@so-net.net.tw
In message 000201c34149$a33d7dc0$a865a8c0@ThinkPadX31 you wrote:
How could I turn on the MTD support in u-boot? I don¡¦t know how to do that?
There is no MTD support in U-Boot. MTD is a software layer whcih is used in Linux. U-Boot does not use anything like that.
I want to use the setenv command to set (assume I used 32MB Flash) mtd0 0x00000000,0x00040000 ¡÷ u-boot mtd1 0x00040000,0x000E0000 ¡÷ kernel mtd2 0x000E0000,0x01F00000 ¡÷ filesystem mtd3 0x01F00000,0x01FF0000 ¡÷ reserved the left space 0x01FF0000,0x02000000 ¡÷ for env Then the kernel will get those parameters to set MTD. Can I do that and not need to modify u-boot ?
There are several ways to do that, and none of them require to modify U-Boot.
Option 1 is to use a static "partition" map; to do so you will have to provide a MTD map file for your board in the Linux kernel tree (directory drivers/mtd/maps/).
Option 2 is to use command line partition table parsing (option CONFIG_MTD_CMDLINE_PARTS) and provide the required boot arguments on the Linux command line.
Best regards,
Wolfgang Denk
participants (2)
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Jacob Chan -
Wolfgang Denk