ARM: dts: ls1021a: Specify TBIPA register address

The current (mildly evil) fsl_pq_mdio code uses an undocumented shadow of the TBIPA register on LS1021A, which happens to be read-only. Changing TBI PHY address therefore does not work on LS1021A. The real (and documented) address of the TBIPA registere lies in the eTSEC block and not in MDIO/MII, which is read/write, so using that fixes the problem. Signed-off-by: Esben Haabendal <[email protected]> Signed-off-by: David S. Miller <[email protected]>
olifre · Apr 8, 2018 · 5571196 · 5571196
1 parent 2148118
commit 5571196
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/arch/arm/boot/dts/ls1021a.dtsi b/arch/arm/boot/dts/ls1021a.dtsi
@@ -587,7 +587,8 @@
 			device_type = "mdio";
 			#address-cells = <1>;
 			#size-cells = <0>;
-			reg = <0x0 0x2d24000 0x0 0x4000>;
+			reg = <0x0 0x2d24000 0x0 0x4000>,
+			      <0x0 0x2d10030 0x0 0x4>;
 		};
 
 		ptp_clock@2d10e00 {