why the kernel doesnt work

why the kernel doesnt work

[Jim Zeus]

HI , David 
 
I am trying to add a intel 28f128 strataflash to perseus borad 
I think what I should do is just to:
1.create a file named perseus-flash.c in /drivers/mtd/maps based on physmap
2.modify the Config.in and Makefile in the same directory
3.set the configuration and remake the kernel image to restart

is that right? and if it is,what should happen or how can i check whether the flash works well.

thanks

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Re: why the kernel doesnt work

[David Woodhouse]

zeusj@firstlinux.net said:
> I am trying to add a intel 28f128 strataflash to perseus borad 
> I think what I should do is just to:
> 1.create a file named perseus-flash.c in /drivers/mtd/maps based on physmap
> 2.modify the Config.in and Makefile in the same directory
> 3.set the configuration and remake the kernel image to restart

> is that right? and if it is,what should happen or how can i check 
> whether the flash works well.

That's right. You should see happy messages when it detects the flash, and 
an appropriate entry in /proc/mtd.

--
dwmw2

Re: why the kernel doesnt work

[Jim Zeus]

thank you for your reply , David , I've got the appropriate entry in /proc/mtd
and I make the device file with "mknod /dev/mtdblock0 b 31 0",
but when I try to mount jffs on it, it appears wrong 
message"no such device", what'wrong with it?

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Re: why the kernel doesnt work

[David Woodhouse]

zeusj@firstlinux.net said:
> thank you for your reply , David , I've got the appropriate entry in /
> proc/mtd and I make the device file with "mknod /dev/mtdblock0 b 31
> 0", but when I try to mount jffs on it, it appears wrong  message"no
> such device", what'wrong with it?

In the 2.4 kernel, you also need CONFIG_MTD_BLOCK defined so the fake 
blockdevice driver is included. (This is about to be fixed in 2.5, but that 
won't be backported to 2.4).


--
dwmw2