On Friday, August 26, 2016 7:12:51 PM CEST Anson Huang wrote: > i.MX7D has 2 cortex-a7 ARM core, add support for > booting up SMP kernel with 2 CPUs. > > The existing i.MX SMP code is designed for i.MX6 > series SoCs which have cortex-a9 ARM core, but i.MX7D > has 2 cortex-a7 ARM core, so we need to add runtime > check for those differences between cortex-a9 and > cortex-a7. > > Signed-off-by: Anson Huang <Anson.Huang@xxxxxxx> > Can't you just point i.MX7D to start from secondary_startup rather than v7_secondary_startup? ENTRY(v7_secondary_startup) + .word 0xc070 @ 0xc07 is cortex-a7 id + .word 0xfff0 @ mask for core type + This looks like you are trying to execute instructions that are actually data. Does this work? On a side note, could you rename v7_secondary_startup to imx6_secondary_startup? The name sounds overly generic on a multiplatform kernel. Arnd -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
