X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=include%2Ffdtdec.h;h=e6c22dd5cd5c17abc7f0eb3c57402d4ffd52dd3a;hb=898c40c0d6f9e53dafcfdf6f870190faef6e088b;hp=266c58271f0bb627b8c69b4de6dd8e3d6bd9c90c;hpb=ceb6ddbc73607e9395bb5f0ad94159755f049e77;p=platform%2Fkernel%2Fu-boot.git

diff --git a/include/fdtdec.h b/include/fdtdec.h
index 266c582..e6c22dd 100644
--- a/include/fdtdec.h
+++ b/include/fdtdec.h
@@ -24,30 +24,6 @@
 typedef phys_addr_t fdt_addr_t;
 typedef phys_size_t fdt_size_t;
 
-static inline fdt32_t fdt_addr_unpack(fdt_addr_t addr, fdt32_t *upper)
-{
-	if (upper)
-#ifdef CONFIG_PHYS_64BIT
-		*upper = addr >> 32;
-#else
-		*upper = 0;
-#endif
-
-	return addr;
-}
-
-static inline fdt32_t fdt_size_unpack(fdt_size_t size, fdt32_t *upper)
-{
-	if (upper)
-#ifdef CONFIG_PHYS_64BIT
-		*upper = size >> 32;
-#else
-		*upper = 0;
-#endif
-
-	return size;
-}
-
 #ifdef CONFIG_PHYS_64BIT
 #define FDT_ADDR_T_NONE (-1U)
 #define fdt_addr_to_cpu(reg) be64_to_cpu(reg)
@@ -1021,6 +997,30 @@ int fdtdec_setup_memory_banksize_fdt(const void *blob);
 int fdtdec_setup_memory_banksize(void);
 
 /**
+ * fdtdec_set_ethernet_mac_address() - set MAC address for default interface
+ *
+ * Looks up the default interface via the "ethernet" alias (in the /aliases
+ * node) and stores the given MAC in its "local-mac-address" property. This
+ * is useful on platforms that store the MAC address in a custom location.
+ * Board code can call this in the late init stage to make sure that the
+ * interface device tree node has the right MAC address configured for the
+ * Ethernet uclass to pick it up.
+ *
+ * Typically the FDT passed into this function will be U-Boot's control DTB.
+ * Given that a lot of code may be holding offsets to various nodes in that
+ * tree, this code will only set the "local-mac-address" property in-place,
+ * which means that it needs to exist and have space for the 6-byte address.
+ * This ensures that the operation is non-destructive and does not invalidate
+ * offsets that other drivers may be using.
+ *
+ * @param fdt FDT blob
+ * @param mac buffer containing the MAC address to set
+ * @param size size of MAC address
+ * @return 0 on success or a negative error code on failure
+ */
+int fdtdec_set_ethernet_mac_address(void *fdt, const u8 *mac, size_t size);
+
+/**
  * fdtdec_set_phandle() - sets the phandle of a given node
  *
  * @param blob		FDT blob
@@ -1029,7 +1029,10 @@ int fdtdec_setup_memory_banksize(void);
  * @param phandle	phandle to set for the given node
  * @return 0 on success or a negative error code on failure
  */
-int fdtdec_set_phandle(void *blob, int node, uint32_t phandle);
+static inline int fdtdec_set_phandle(void *blob, int node, uint32_t phandle)
+{
+	return fdt_setprop_u32(blob, node, "phandle", phandle);
+}
 
 /**
  * fdtdec_add_reserved_memory() - add or find a reserved-memory node