MIPS: Pistachio: Support CDMM & Fast Debug Channel
authorJames Hogan <james.hogan@imgtec.com>
Fri, 17 Apr 2015 09:44:16 +0000 (10:44 +0100)
committerRalf Baechle <ralf@linux-mips.org>
Fri, 10 Jul 2015 09:02:20 +0000 (11:02 +0200)
commit6b5e741e9a834a8cf2d5b895319045ab17ad37fe
tree10d4c9b99b07063abcf28eb8aba7a2e569bd86ad
parent6249ecbbb75cd635025cc681fcf51fb8659edbab
MIPS: Pistachio: Support CDMM & Fast Debug Channel

Implement the mips_cdmm_phys_base() platform callback to provide a
default Common Device Memory Map (CDMM) physical base address for the
Pistachio SoC. This allows the CDMM in each VPE to be configured and
probed for devices, such as the Fast Debug Channel (FDC).

The physical address chosen is just below the default CPC address, which
appears to also be unallocated.

The FDC IRQ is also usable on Pistachio, and is routed through the GIC,
so implement the get_c0_fdc_int() platform callback using
gic_get_c0_fdc_int(), so the FDC driver doesn't have to fall back to
polling.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: James Hartley <james.hartley@imgtec.com>
Cc: linux-mips@linux-mips.org
Reviewed-by: Andrew Bresticker <abrestic@chromium.org>
Patchwork: http://patchwork.linux-mips.org/patch/9749/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
arch/mips/pistachio/init.c
arch/mips/pistachio/time.c