OMAP: iommu: add initial debugfs support
This enables to peek the following data.
$ /debug/iommu/isp# ls
mem nr_tlb_entries regs
mmap pagetable tlb
$ /debug/iommu/isp# head pagetable
L: da: pa:
-----------------------------------------
2: 00001000 8ae4a002
2: 00002000 8e7bb002
2: 00003000 8ae49002
2: 00004000 8ae65002
.....
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
index efe85d0..ab9f9ef 100644
--- a/arch/arm/plat-omap/Kconfig
+++ b/arch/arm/plat-omap/Kconfig
@@ -120,6 +120,10 @@
config OMAP_IOMMU
tristate
+config OMAP_IOMMU_DEBUG
+ depends on OMAP_IOMMU
+ tristate
+
choice
prompt "System timer"
default OMAP_MPU_TIMER