Add function address_in_sdram_regions to check if a address
is in any sdram region.
Also added new macro 'ADDRESS_IN_REGIONS' to check if address
is in a special boundary with start and end address.
Signed-off-by: Alexander Aring <alex.aring@xxxxxxxxx>
---
common/memory.c | 16 ++++++++++++++++
include/memory.h | 6 ++++++
2 files changed, 22 insertions(+)
diff --git a/common/memory.c b/common/memory.c
index 81641f0..d2e9164 100644
--- a/common/memory.c
+++ b/common/memory.c
@@ -162,6 +162,22 @@ int release_sdram_region(struct resource *res)
return release_region(res);
}
+/*
+ * Check if specific address are in any allocated region.
+ */
+int address_in_sdram_regions(resource_size_t address)
+{
+ struct memory_bank *bank = NULL;
+ struct resource *r = NULL;
+
+ for_each_memory_bank(bank)
+ list_for_each_entry(r, &bank->res->children, sibling)
+ if (ADDRESS_IN_REGIONS(address, r->start, r->end))
+ return 1;
+
+ return 0;
+}
+
#ifdef CONFIG_OFTREE
/*
diff --git a/include/memory.h b/include/memory.h
index 165d2dc..e12a28d 100644
--- a/include/memory.h
+++ b/include/memory.h
@@ -27,4 +27,10 @@ struct resource *request_sdram_region(const char *name, resource_size_t start,
resource_size_t size);
int release_sdram_region(struct resource *res);
+#define ADDRESS_IN_REGIONS(address, region_start, region_end) \
+ ((address >= region_start) && \
+ (address <= region_end))
+
+int address_in_sdram_regions(resource_size_t address);
+
#endif
--
1.8.1.2
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