arm64: dts: ls1088a: specify clock frequencies for the MDIO controllers

BugLink: https://bugs.launchpad.net/bugs/1998843
[ Upstream commit d78a57426e64fc4c61e6189e450a0432d24536ca ]

Up until now, the external MDIO controller frequency values relied
either on the default ones out of reset or on those setup by u-boot.
Let's just properly specify the MDC frequency in the DTS so that even
without u-boot's intervention Linux can drive the MDIO bus.

Fixes: bbe75af7b092 ("arm64: dts: ls1088a: add external MDIO device nodes")
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
index 605072317243619d58438cd8021130c1a2d98c5d..63441028622a6dec26763a13ee0d1c59ee7450b7 100644 (file)
--- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
@@ -758,6 +758,9 @@
                        little-endian;
                        #address-cells = <1>;
                        #size-cells = <0>;
+                       clock-frequency = <2500000>;
+                       clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL
+                                           QORIQ_CLK_PLL_DIV(1)>;
                        status = "disabled";
                };
 
@@ -767,6 +770,9 @@
                        little-endian;
                        #address-cells = <1>;
                        #size-cells = <0>;
+                       clock-frequency = <2500000>;
+                       clocks = <&clockgen QORIQ_CLK_PLATFORM_PLL
+                                           QORIQ_CLK_PLL_DIV(1)>;
                        status = "disabled";
                };