Re: [PATCH 2/8] ARM: dts: dra7-clock: Add "l3init_960m_gfclk" clock gate

From: Tero Kristo
Date: Fri Mar 07 2014 - 08:59:54 EST


On 03/07/2014 03:09 PM, Roger Quadros wrote:
This clock gate description was missing in older Reference manuals.
It is present on the SoC to provide 960MHz reference clock to the
internal USB PHYs.

Can you provide a document reference here?

-Tero


Use l3init_960m_gfclk as parent of usb_otg_ss1_refclk960m and
usb_otg_ss2_refclk960m.

CC: Tero Kristo <t-kristo@xxxxxx>
Signed-off-by: Roger Quadros <rogerq@xxxxxx>
---
arch/arm/boot/dts/dra7xx-clocks.dtsi | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/dra7xx-clocks.dtsi b/arch/arm/boot/dts/dra7xx-clocks.dtsi
index e96da9a..b8d3a9d 100644
--- 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>;
};


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