• Tony Lindgren's avatar
    ARM: OMAP2+: Fix SRAM virt to phys translation for save_secure_ram_context · d09220a8
    Tony Lindgren authored
    With the CMA changes from Joonsoo Kim <iamjoonsoo.kim@lge.com>, it
    was noticed that n900 stopped booting. After investigating it turned
    out that n900 save_secure_ram_context does some whacky virtual to
    physical address translation for the SRAM data address.
    
    As we now only have minimal parts of omap3 idle code copied to SRAM,
    running save_secure_ram_context() in SRAM is not needed. It only gets
    called on PM init. And it seems there's no need to ever call this from
    SRAM idle code.
    
    So let's just keep save_secure_ram_context() in DDR, and pass it the
    physical address of the parameters. We can do everything else in
    omap-secure.c like we already do for other secure code.
    
    And since we don't have any documentation, I still have no clue what
    the values for 0, 1 and 1 for the parameters might be. If somebody has
    figured it out, please do send a patch to add some comments.
    Debugged-by: 's avatarJoonsoo Kim <iamjoonsoo.kim@lge.com>
    Signed-off-by: 's avatarTony Lindgren <tony@atomide.com>
    d09220a8
pm34xx.c 14.7 KB