On 03/14/2014 04:54 PM, Kishon Vijay Abraham I wrote:
>
>
> On Friday 14 March 2014 05:41 PM, Roger Quadros wrote:
>> On 03/14/2014 12:38 PM, Kishon Vijay Abraham I wrote:
>>> Hi Roger,
>>>
>>> On Friday 07 March 2014 06:39 PM, Roger Quadros wrote:
>>>> Add nodes for the Super Speed USB controllers, omap-control-usb,
>>>> USB2 PHY and USB3 PHY devices.
>>>>
>>>> Remove ocp2scp1 address space from hwmod data as it is
>>>> now provided via device tree.
>>>>
>>>> Signed-off-by: Roger Quadros <rogerq@xxxxxx>
>>>> ---
>>>> arch/arm/boot/dts/dra7.dtsi | 110 ++++++++++++++++++++++++++++++
>>>> arch/arm/mach-omap2/omap_hwmod_7xx_data.c | 10 ---
>>>> 2 files changed, 110 insertions(+), 10 deletions(-)
>>>>
>>>> diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
>>>> index 597979b..1e73900 100644
>>>> --- a/arch/arm/boot/dts/dra7.dtsi
>>>> +++ b/arch/arm/boot/dts/dra7.dtsi
>>>> @@ -811,6 +811,116 @@
>>>> clocks = <&sata_ref_clk>;
>>>> ti,hwmods = "sata";
>>>> };
>>>> +
>>>> + omap_control_usb2phy1: control-phy@4a002300 {
>>>> + compatible = "ti,control-phy-usb2";
>>>> + reg = <0x4a002300 0x4>;
>>>> + reg-names = "power";
>>>> + };
>>>> +
>>>> + omap_control_usb3phy1: control-phy@4a002370 {
>>>> + compatible = "ti,control-phy-pipe3";
>>>> + reg = <0x4a002370 0x4>;
>>>> + reg-names = "power";
>>>> + };
>>>> +
>>>> + omap_control_usb2phy2: control-phy@0x4a002e74 {
>>>> + compatible = "ti,control-phy-usb2-dra7";
>>>> + reg = <0x4a002e74 0x4>;
>>>> + reg-names = "power";
>>>> + };
>>>> +
>>>> + /* OCP2SCP1 */
>>>> + ocp2scp@4a080000 {
>>>> + compatible = "ti,omap-ocp2scp";
>>>> + #address-cells = <1>;
>>>> + #size-cells = <1>;
>>>> + ranges;
>>>> + reg = <0x4a080000 0x20>;
>>>> + ti,hwmods = "ocp2scp1";
>>>> +
>>>> + usb2_phy1: phy@4a084000 {
>>>> + compatible = "ti,omap-usb2";
>>>> + reg = <0x4a084000 0x400>;
>>>> + ctrl-module = <&omap_control_usb2phy1>;
>>>> + clocks = <&usb_phy1_always_on_clk32k>,
>>>> + <&usb_otg_ss1_refclk960m>;
>>>> + clock-names = "wkupclk",
>>>> + "refclk";
>>>> + #phy-cells = <0>;
>>>> + };
>>>> +
>>>> + usb2_phy2: phy@4a085000 {
>>>> + compatible = "ti,omap-usb2";
>>>> + reg = <0x4a085000 0x400>;
>>>> + ctrl-module = <&omap_control_usb2phy2>;
>>>> + clocks = <&usb_phy2_always_on_clk32k>,
>>>> + <&usb_otg_ss2_refclk960m>;
>>>> + clock-names = "wkupclk",
>>>> + "refclk";
>>>> + #phy-cells = <0>;
>>>> + };
>>>> +
>>>> + usb3_phy1: phy@4a084400 {
>>>> + compatible = "ti,omap-usb3";
>>>> + reg = <0x4a084400 0x80>,
>>>> + <0x4a084800 0x64>,
>>>> + <0x4a084c00 0x40>;
>>>> + reg-names = "phy_rx", "phy_tx", "pll_ctrl";
>>>> + ctrl-module = <&omap_control_usb3phy1>;
>>>> + clocks = <&usb_phy3_always_on_clk32k>,
>>>> + <&sys_clkin1>,
>>>> + <&usb_otg_ss1_refclk960m>,
>>>> + <&dpll_core_h13x2_ck>;
>>>> + clock-names = "wkupclk",
>>>> + "sysclk",
>>>> + "refclk",
>>>> + "optclk";
>>>
>>> Do we use this 'optclk' in driver?
>>
>> No we don't. Still the device seems to work without it.
>> This is supposed to be USB_LFPS_TX_GFCLK or USB3PHY_REF_CLK.
>
> I think it should be enabled. Did you check the status of this clock in CM_L3INIT_CLKSTCTRL? Moreover USB_LFPS_TX_GFCLK is an interface clock, so IIUC setting the module mode will enable it.
>
> Btw how did you tell dpll_core_h13x2_ck enables USB_LFPS_TX_GFCLK?
>
>From the clock tree tool. It looks like the clock is gated automatically with the module mode
as you suggested. I'll get rid of this clock reference then.
cheers,
-roger
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