OMAP: iommu: create new api to set valid da range

Some IOMMUs cannot use the whole 0x0 - 0xFFFFFFFF range.
With this new API the valid range can be set.

Signed-off-by: Fernando Guzman Lugo <x0095840@ti.com>
Acked-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/arch/arm/plat-omap/include/plat/iommu.h b/arch/arm/plat-omap/include/plat/iommu.h
index 33c7d41cb6a5..69230d685538 100644
--- a/arch/arm/plat-omap/include/plat/iommu.h
+++ b/arch/arm/plat-omap/include/plat/iommu.h
@@ -50,6 +50,8 @@ struct iommu {
         int (*isr)(struct iommu *obj);
 
         void *ctx; /* iommu context: registres saved area */
+        u32 da_start;
+        u32 da_end;
 };
 
 struct cr_regs {
@@ -103,6 +105,8 @@ struct iommu_platform_data {
         const char *name;
         const char *clk_name;
         const int nr_tlb_entries;
+        u32 da_start;
+        u32 da_end;
 };
 
 #if defined(CONFIG_ARCH_OMAP1)
@@ -152,6 +156,7 @@ extern void flush_iotlb_all(struct iommu *obj);
 extern int iopgtable_store_entry(struct iommu *obj, struct iotlb_entry *e);
 extern size_t iopgtable_clear_entry(struct iommu *obj, u32 iova);
 
+extern int iommu_set_da_range(struct iommu *obj, u32 start, u32 end);
 extern struct iommu *iommu_get(const char *name);
 extern void iommu_put(struct iommu *obj);