powerpc/mpic: Save computed phys_addr for board-specific code

The MPIC code can already perform an automatic OF address translation
step as part of mpic_alloc(), but several boards need to use that base
address when they perform mpic_assign_isu().

The easiest solution is to save the computed physical address into the
"struct mpic" for later use by the board code.

Signed-off-by: Kyle Moffett <Kyle.D.Moffett@boeing.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/arch/powerpc/include/asm/mpic.h b/arch/powerpc/include/asm/mpic.h
index e6fae49e0b74..ba0b2046106e 100644
--- a/arch/powerpc/include/asm/mpic.h
+++ b/arch/powerpc/include/asm/mpic.h
@@ -293,6 +293,9 @@ struct mpic
         /* Register access method */
         enum mpic_reg_type      reg_type;
 
+        /* The physical base address of the MPIC */
+        phys_addr_t paddr;
+
         /* The various ioremap'ed bases */
         struct mpic_reg_bank    gregs;
         struct mpic_reg_bank    tmregs;