• Lubomir Rintel's avatar
    ARM: dts: mmp2: fix TWSI2 · 46d5a194
    Lubomir Rintel authored
    [ Upstream commit 1147e05ac9fc2ef86a3691e7ca5c2db7602d81dd ]
    
    Marvell keeps their MMP2 datasheet secret, but there are good clues
    that TWSI2 is not on 0xd4025000 on that platform, not does it use
    IRQ 58. In fact, the IRQ 58 on MMP2 seems to be a signal processor:
    
       arch/arm/mach-mmp/irqs.h:#define IRQ_MMP2_MSP  58
    
    I'm taking a somewhat educated guess that is probably a copy & paste
    error from PXA168 or PXA910 and that the real controller in fact hides
    at address 0xd4031000 and uses an interrupt line multiplexed via IRQ 17.
    
    I'm also copying some properties from TWSI1 that were missing or
    incorrect.
    
    Tested on a OLPC XO 1.75 machine, where the RTC is on TWSI2.
    Signed-off-by: default avatarLubomir Rintel <lkundrak@v3.sk>
    Tested-by: default avatarPavel Machek <pavel@ucw.cz>
    Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
    Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
    46d5a194
mmp2.dtsi 6.09 KB