confusions

[Altera_Forum]

1. Here is log outport by uclinux  

... 0x00200000-0x00d00000 : "romfs/jffs2"  0x00000000-0x00200000 : "loader/kernel"  0x00d00000-0x00e00000 : "User1 configuration"  0x00e00000-0x00f00000 : "User0 configuration"  0x00f00000-0x01000000 : "safe configuration" ...  romfs/jffs2: is it romfs or jiffs2? Or romfs formated by jiffs2 ?  2.  <drivers>/mtd/maps/altera.c    .name =  "safe configuration",  .size =  0x200000,  .offset =    0x600000,  .mask_flags =    MTD_WRITEABLE,  /* force read-only */  why mtd_writeable but /* force read-only */ ?    Hehe, I am newbie so the problems confused me.

[Altera_Forum]

Hi mountain8848, 

 > romfs/jffs2: is it romfs or jiffs2? Or romfs formated by jiffs2 ?  "romfs/jffs2" is just a name for the partition, nothing more ... it&#39;s there only for human consumption ... so the name has absolutely no bearing on what you can or can&#39;t put in the partition. Although, it&#39;s generally a good idea for the name to describe the _purpose_ of the partion. The author of the mtd map driver is just saying that the partition is _intended_ for use by a "romfs" or "jffs2" filesystem. Perhaps a more generic name would be "filesystem". You can take a look at the code in drivers/mtd/maps for examples.  > why MTD_WRITEABLE but /* force read-only */ ?   MTD_WRITEABLE is a _mask_, not an enable -- it&#39;s a flag indicating what is to be _removed_. To be honest, I never really liked this. Anyway, see:  include/linux/mtd/partitions.h and include/mtd/mtd-abi.h  Regards, --Scott