From: Dinh Nguyen <[email protected]>

The CIU(Card Interface Unit) clock is used by the dw_mmc IP to clock an SD
card. The ciu_clk is the sdmmc_clk passed through a fixed divider of 4. This 
patch
adds the ciu_clk node and makes the sdmmc_clk it's parent.

Signed-off-by: Dinh Nguyen <[email protected]>
---
 arch/arm/boot/dts/socfpga.dtsi | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
index d9176e6..25418ee 100644
--- a/arch/arm/boot/dts/socfpga.dtsi
+++ b/arch/arm/boot/dts/socfpga.dtsi
@@ -451,6 +451,14 @@
                                                clk-phase = <0 135>;
                                        };
 
+                                       ciu_clk: ciu_clk {
+                                               #clock-cells = <0>;
+                                               compatible = 
"altr,socfpga-gate-clk";
+                                               clocks = <&sdmmc_clk>;
+                                               clk-gate = <0xa0 8>;
+                                               fixed-divider = <4>;
+                                       };
+
                                        nand_x_clk: nand_x_clk {
                                                #clock-cells = <0>;
                                                compatible = 
"altr,socfpga-gate-clk";
@@ -635,7 +643,7 @@
                        fifo-depth = <0x400>;
                        #address-cells = <1>;
                        #size-cells = <0>;
-                       clocks = <&l4_mp_clk>, <&sdmmc_clk>;
+                       clocks = <&l4_mp_clk>, <&ciu_clk>;
                        clock-names = "biu", "ciu";
                };
 
-- 
2.2.1

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