ARM: dts: dra7-clock: Add "l3init_960m_gfclk" clock gate

This clock gate description is missing in the older Reference manuals.
It is present on the SoC to provide 960MHz reference clock to the
internal USB PHYs.

Reference: DRA75x_DRA74x_ES1.1_NDA_TRM_vO.pdf, pg. 900,
Table 3-812. CM_COREAON_L3INIT_60M_GFCLK_CLKCTRL

Use l3init_960m_gfclk as parent of usb_otg_ss1_refclk960m and
usb_otg_ss2_refclk960m.

CC: Benoît Cousson <bcousson@baylibre.com>
Acked-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/dra7xx-clocks.dtsi b/arch/arm/boot/dts/dra7xx-clocks.dtsi
index cfb8fc7..c767687 100644 (file)
--- a/arch/arm/boot/dts/dra7xx-clocks.dtsi
+++ b/arch/arm/boot/dts/dra7xx-clocks.dtsi
@@ -1386,6 +1386,14 @@
                ti,dividers = <1>, <8>;
        };
 
+       l3init_960m_gfclk: l3init_960m_gfclk {
+               #clock-cells = <0>;
+               compatible = "ti,gate-clock";
+               clocks = <&dpll_usb_clkdcoldo>;
+               ti,bit-shift = <8>;
+               reg = <0x06c0>;
+       };
+
        dss_32khz_clk: dss_32khz_clk {
                #clock-cells = <0>;
                compatible = "ti,gate-clock";
@@ -1533,7 +1541,7 @@
        usb_otg_ss1_refclk960m: usb_otg_ss1_refclk960m {
                #clock-cells = <0>;
                compatible = "ti,gate-clock";
-               clocks = <&dpll_usb_clkdcoldo>;
+               clocks = <&l3init_960m_gfclk>;
                ti,bit-shift = <8>;
                reg = <0x13f0>;
        };
@@ -1541,7 +1549,7 @@
        usb_otg_ss2_refclk960m: usb_otg_ss2_refclk960m {
                #clock-cells = <0>;
                compatible = "ti,gate-clock";
-               clocks = <&dpll_usb_clkdcoldo>;
+               clocks = <&l3init_960m_gfclk>;
                ti,bit-shift = <8>;
                reg = <0x1340>;
        };