ARM: mvebu: use 0xf1000000 as internal registers on Armada 370 DB

[firefly-linux-kernel-4.4.55.git] / arch / arm / boot / dts / armada-370-db.dts

diff --git a/arch/arm/boot/dts/armada-370-db.dts b/arch/arm/boot/dts/armada-370-db.dts
index e993c46bd47273b247d80f49c0521c08e06767d5..dede3e737a4530f9f97446fb4519b9cd174ae4b3 100644 (file)
--- a/arch/arm/boot/dts/armada-370-db.dts
+++ b/arch/arm/boot/dts/armada-370-db.dts
@@ -45,6 +45,15 @@
  *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  *     OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Note: this Device Tree assumes that the bootloader has remapped the
+ * internal registers to 0xf1000000 (instead of the default
+ * 0xd0000000). The 0xf1000000 is the default used by the recent,
+ * DT-capable, U-Boot bootloaders provided by Marvell. Some earlier
+ * boards were delivered with an older version of the bootloader that
+ * left internal registers mapped at 0xd0000000. If you are in this
+ * situation, you should either update your bootloader (preferred
+ * solution) or the below Device Tree should be adjusted.
  */
 
 /dts-v1/;
@@ -64,7 +73,7 @@
        };
 
        soc {
-               ranges = <MBUS_ID(0xf0, 0x01) 0 0xd0000000 0x100000
+               ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000
                          MBUS_ID(0x01, 0xe0) 0 0xfff00000 0x100000>;
 
                internal-regs {