hw/omap_l4.c: Add helper function omap_l4_region_base

Add helper function omap_l4_region_base() to return the base address
of a particular region of an L4 target agent.

Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com>
[Riku Voipio: Fixes and restructuring patchset]
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
[Peter Maydell: More fixes and cleanups for upstream submission]
Signed-off-by:  Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>

2 files changed, 8 insertions, 0 deletions

diff --git a/hw/omap.h b/hw/omap.h
index c227a82b2..00a0ea904 100644
--- a/hw/omap.h
+++ b/hw/omap.h
@@ -93,6 +93,8 @@ struct omap_target_agent_s *omap_l4ta_get(
     int cs);
 target_phys_addr_t omap_l4_attach(struct omap_target_agent_s *ta, int region,
                 int iotype);
+target_phys_addr_t omap_l4_region_base(struct omap_target_agent_s *ta,
+                                       int region);
 int l4_register_io_memory(CPUReadMemoryFunc * const *mem_read,
                 CPUWriteMemoryFunc * const *mem_write, void *opaque);
 
diff --git a/hw/omap_l4.c b/hw/omap_l4.c
index 4af0ca8ea..59c84b19a 100644
--- a/hw/omap_l4.c
+++ b/hw/omap_l4.c
@@ -146,6 +146,12 @@ struct omap_l4_s *omap_l4_init(target_phys_addr_t base, int ta_num)
     return bus;
 }
 
+target_phys_addr_t omap_l4_region_base(struct omap_target_agent_s *ta,
+                                       int region)
+{
+    return ta->bus->base + ta->start[region].offset;
+}
+
 static uint32_t omap_l4ta_read(void *opaque, target_phys_addr_t addr)
 {
     struct omap_target_agent_s *s = (struct omap_target_agent_s *) opaque;