ARM: dts: dra7: cpsw: fix clocks tree

Current clocks tree definition for CPSW/CPTS doesn't
correspond TRM for dra7/am57 SoCs.

CPTS: has to be sourced from gmac_rft_clk_mux clock
CPSW: DPLL_GMAC -> CLKOUT_M2 -> GMAC_250M_CLK -> 1/2 ->
      -> GMAC_MAIN_CLK (125 MHZ)

Hence, correct clock tree for GMAC_MAIN_CLK and use proper
clock for CPTS. This also require updating of CPTS clock
multiplier.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index fbd5a3e..1c1c3c2 100644 (file)
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -1719,7 +1719,7 @@
                mac: ethernet@48484000 {
                        compatible = "ti,dra7-cpsw","ti,cpsw";
                        ti,hwmods = "gmac";
-                       clocks = <&dpll_gmac_ck>, <&gmac_gmii_ref_clk_div>;
+                       clocks = <&gmac_main_clk>, <&gmac_rft_clk_mux>;
                        clock-names = "fck", "cpts";
                        cpdma_channels = <8>;
                        ale_entries = <1024>;
@@ -1728,7 +1728,7 @@
                        mac_control = <0x20>;
                        slaves = <2>;
                        active_slave = <0>;
-                       cpts_clock_mult = <0x80000000>;
+                       cpts_clock_mult = <0x784CFE14>;
                        cpts_clock_shift = <29>;
                        reg = <0x48484000 0x1000
                               0x48485200 0x2E00>;

diff --git a/arch/arm/boot/dts/dra7xx-clocks.dtsi b/arch/arm/boot/dts/dra7xx-clocks.dtsi
index 3f0c61d..3330738 100644 (file)
--- a/arch/arm/boot/dts/dra7xx-clocks.dtsi
+++ b/arch/arm/boot/dts/dra7xx-clocks.dtsi
@@ -1003,6 +1003,14 @@
                ti,index-power-of-two;
        };
 
+       gmac_main_clk: gmac_main_clk {
+               #clock-cells = <0>;
+               compatible = "fixed-factor-clock";
+               clocks = <&gmac_250m_dclk_div>;
+               clock-mult = <1>;
+               clock-div = <2>;
+       };
+
        l3init_480m_dclk_div: l3init_480m_dclk_div@1ac {
                #clock-cells = <0>;
                compatible = "ti,divider-clock";
@@ -1726,14 +1734,6 @@
                reg = <0x13d0>;
        };
 
-       gmac_gmii_ref_clk_div: gmac_gmii_ref_clk_div {
-               #clock-cells = <0>;
-               compatible = "fixed-factor-clock";
-               clocks = <&dpll_gmac_m2_ck>;
-               clock-mult = <1>;
-               clock-div = <2>;
-       };
-
        gmac_rft_clk_mux: gmac_rft_clk_mux@13d0 {
                #clock-cells = <0>;
                compatible = "ti,mux-clock";