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Change-Id: I27aad560a5da21c0439f3ccc9dc07b026e7c6022

blx_plat_arch_setup() should only perform platform-specific
architectural setup, e.g. enabling the MMU.  This patch moves
generic architectural setup code out of blx_plat_arch_setup().

Change-Id: I4ccf56b8c4a2fa84909817779a2d97a14aaafab6

Change-Id: I4e2a9daa97e3be3d2f53894f2ec7947ba6bb3a16

Change-Id: I5e47ba96e128d3a793517441f5a6c9f2ccbdfc66

- The interrupt addresses need to be updated to work.

Change-Id: Icdd00177095ae9e4eb7b13718762f92e29b1465c

- The Foundation FVP only has one cluster and does not have
  CCI.

Change-Id: If91e81ff72c52e448150089c4cfea3e4d6ae1232

- The Foundation FVP is a cut down version of the Base FVP and as
  such lacks some components.
- Three FDTs are provided.
  fvp-foundation-gicv2legacy-psci:
    Use this when setting the Foundation FVP to use GICv2. In this
    mode the GIC is located at the VE location, as described in the
    VE platform memory map.
  fvp-foundation-gicv3-psci :
    Use this when setting the Foundation FVP to use GICv3. In this
    mode the GIC is located at the Base location, as described in the
    Base platform memory map.
  fvp-foundation-gicv2-psci :
    Use this when setting the Foundation FVP to use GICv3, but Linux
    is expected to use GICv2 emulation mode. In this mode the GIC is
    located at the Base location, but the GICv3 is used in GICv2
    emulation mode.

Change-Id: I9d69bcef35c64cc8f16550efe077f578e55aaae5

- Writing to this register with a 64bit access can cause a
  Systen Error Exception on some models.

Change-Id: Ibcf5bdf7ab55707db61c16298f25caff50e1ff7e