• Anton Vorontsov's avatar
    [MTD] [NAND] fsl_elbc_nand: fix mtd name · 9ebed3e6
    Anton Vorontsov authored
    Currently fsl_elbc_nand doesn't initialize mtd->name, and this causes
    nand_get_flash_type() to assign name that is equal to chip type, like
    this:
    
       root@b1:~# cat /proc/mtd
       dev:    size   erasesize  name
       mtd0: 00800000 00010000 "fe000000.flash"
       mtd1: 02000000 00004000 "NAND 32MiB 3,3V 8-bit"
    
    mtd0 is physmap_of flash (normal name), and mtd1 is fsl_elbc_nand.
    
    Despite inconsistency, with mtd name like this specifying paritions
    from the kernel command line becomes a torture (though, I didn't tried
    and not sure if mtdparts= can handle spaces at all). Plus, this causes
    real bugs when multiple fsl_elbc_nand chips registered.
    
    With this patch applied fsl_elbc_nand chip will have proper name:
    
       root@b1:~# cat /proc/mtd
       dev:    size   erasesize  name
       mtd0: 00800000 00010000 "fe000000.flash"
       mtd1: 02000000 00004000 "e0600000.flash"
    
    p.s. We can't use priv->dev->bus_id as in physmap_of, because
    fsl_elbc_nand pretends to be a localbus controller, so its bus_id is
    "address.localbus", which is incorrect and thus will also not work
    for multiple chips.
    Signed-off-by: default avatarAnton Vorontsov <avorontsov@ru.mvista.com>
    Signed-off-by: default avatarDavid Woodhouse <dwmw2@infradead.org>
    9ebed3e6
fsl_elbc_nand.c 28.8 KB