by Zhou Yanjie

[permalink] [raw]

Subject: Re: [PATCH 1/2] MIPS: Ingenic: Add missing nodes for Ingenic SoCs and boards.

Hi Paul,

On 2020/11/10 上午7:37, Paul Cercueil wrote:
>
>
> Le sam. 7 nov. 2020 à 19:52, 周琰杰 (Zhou Yanjie)
> <[email protected]> a écrit :
>> 1.Add OTG/OTG PHY/RNG nodes for JZ4780, CGU/OTG nodes for CI20.
>> 2.Add OTG/OTG PHY/RNG/OST nodes for X1000, SSI/CGU/OST/OTG/SC16IS752
>> nodes for CU1000-Neo.
>> 3.Add OTG/OTG PHY/DTRNG/OST nodes for X1830, SSI/CGU/OST/OTG/SC16IS752
>> nodes for CU1830-Neo.
>>
>> Tested-by: 周正 (Zhou Zheng) <[email protected]>
>> Signed-off-by: 周琰杰 (Zhou Yanjie) <[email protected]>
>> ---
>> arch/mips/boot/dts/ingenic/ci20.dts       | 16 +++++++++
>> arch/mips/boot/dts/ingenic/cu1000-neo.dts | 60
>> +++++++++++++++++++++++++++----
>> arch/mips/boot/dts/ingenic/cu1830-neo.dts | 60
>> +++++++++++++++++++++++++++----
>> arch/mips/boot/dts/ingenic/jz4780.dtsi    | 41 +++++++++++++++++++--
>> arch/mips/boot/dts/ingenic/x1000.dtsi     | 52
>> ++++++++++++++++++++++++++-
>> arch/mips/boot/dts/ingenic/x1830.dtsi     | 54
>> +++++++++++++++++++++++++++-
>> 6 files changed, 267 insertions(+), 16 deletions(-)
>>
>> diff --git a/arch/mips/boot/dts/ingenic/ci20.dts
>> b/arch/mips/boot/dts/ingenic/ci20.dts
>> index 75f5bfbf2c37..b31054a41754 100644
>> --- a/arch/mips/boot/dts/ingenic/ci20.dts
>> +++ b/arch/mips/boot/dts/ingenic/ci20.dts
>> @@ -93,6 +93,15 @@
>>      clock-frequency = <48000000>;
>> };
>>
>> +&cgu {
>> +    /*
>> +     * Use the 32.768 kHz oscillator as the parent of the RTC for a
>> higher
>> +     * precision.
>> +     */
>> +    assigned-clocks = <&cgu JZ4780_CLK_RTC>;
>> +    assigned-clock-parents = <&cgu JZ4780_CLK_RTCLK>;
>> +};
>> +
>> &mmc0 {
>>      status = "okay";
>>
>> @@ -396,6 +405,13 @@
>>      status = "okay";
>> };
>>
>> +&otg {
>> +    status = "okay";
>> +
>> +    assigned-clocks = <&cgu JZ4780_CLK_OTGPHY>;
>> +    assigned-clock-rates = <48000000>;
>> +};
>> +
>> &pinctrl {
>>      pins_uart0: uart0 {
>>          function = "uart0";
>> diff --git a/arch/mips/boot/dts/ingenic/cu1000-neo.dts
>> b/arch/mips/boot/dts/ingenic/cu1000-neo.dts
>> index 22a1066d637b..44d47d12db12 100644
>> --- a/arch/mips/boot/dts/ingenic/cu1000-neo.dts
>> +++ b/arch/mips/boot/dts/ingenic/cu1000-neo.dts
>> @@ -3,7 +3,7 @@
>>
>> #include "x1000.dtsi"
>> #include <dt-bindings/gpio/gpio.h>
>> -#include <dt-bindings/clock/ingenic,tcu.h>
>> +#include <dt-bindings/clock/ingenic,sysost.h>
>> #include <dt-bindings/interrupt-controller/irq.h>
>>
>> / {
>> @@ -31,6 +31,18 @@
>>          };
>>      };
>>
>> +    ssi: spi-gpio {
>> +        compatible = "spi-gpio";
>> +        #address-cells = <1>;
>> +        #size-cells = <0>;
>> +        num-chipselects = <1>;
>> +
>> +        mosi-gpios = <&gpd 2 GPIO_ACTIVE_HIGH>;
>> +        miso-gpios = <&gpd 3 GPIO_ACTIVE_HIGH>;
>> +        sck-gpios = <&gpd 0 GPIO_ACTIVE_HIGH>;
>> +        cs-gpios = <&gpd 1 GPIO_ACTIVE_HIGH>;
>> +    };
>> +
>>      wlan_pwrseq: msc1-pwrseq {
>>          compatible = "mmc-pwrseq-simple";
>>
>> @@ -43,13 +55,19 @@
>>      clock-frequency = <24000000>;
>> };
>>
>> -&tcu {
>> +&cgu {
>> +    /*
>> +     * Use the 32.768 kHz oscillator as the parent of the RTC for a
>> higher
>> +     * precision.
>> +     */
>> +    assigned-clocks = <&cgu X1000_CLK_RTC>;
>> +    assigned-clock-parents = <&cgu X1000_CLK_RTCLK>;
>> +};
>> +
>> +&ost {
>>      /* 1500 kHz for the system timer and clocksource */
>> -    assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER2>;
>> +    assigned-clocks = <&ost OST_CLK_PERCPU_TIMER>, <&ost
>> OST_CLK_GLOBAL_TIMER>;
>>      assigned-clock-rates = <1500000>, <1500000>;
>> -
>> -    /* Use channel #0 for the system timer channel #2 for the
>> clocksource */
>> -    ingenic,pwm-channels-mask = <0xfa>;
>> };
>>
>> &uart2 {
>> @@ -59,6 +77,32 @@
>>      pinctrl-0 = <&pins_uart2>;
>> };
>>
>> +&ssi {
>> +    status = "okay";
>> +
>> +    spi-max-frequency = <50000000>;
>> +
>> +    sc16is752: expander@0 {
>> +        compatible = "nxp,sc16is752";
>> +        reg = <0>; /* CE0 */
>> +        spi-max-frequency = <4000000>;
>> +
>> +        clocks = <&exclk_sc16is752>;
>> +
>> +        interrupt-parent = <&gpc>;
>> +        interrupts = <6 IRQ_TYPE_EDGE_FALLING>;
>> +
>> +        gpio-controller;
>> +        #gpio-cells = <2>;
>> +
>> +        exclk_sc16is752: sc16is752 {
>> +            compatible = "fixed-clock";
>> +            #clock-cells = <0>;
>> +            clock-frequency = <48000000>;
>> +        };
>> +    };
>> +};
>> +
>> &i2c0 {
>>      status = "okay";
>>
>> @@ -135,6 +179,10 @@
>>      };
>> };
>>
>> +&otg {
>> +    status = "okay";
>> +};
>> +
>> &pinctrl {
>>      pins_uart2: uart2 {
>>          function = "uart2";
>> diff --git a/arch/mips/boot/dts/ingenic/cu1830-neo.dts
>> b/arch/mips/boot/dts/ingenic/cu1830-neo.dts
>> index 640f96c00d63..7a56e344e429 100644
>> --- a/arch/mips/boot/dts/ingenic/cu1830-neo.dts
>> +++ b/arch/mips/boot/dts/ingenic/cu1830-neo.dts
>> @@ -3,7 +3,7 @@
>>
>> #include "x1830.dtsi"
>> #include <dt-bindings/gpio/gpio.h>
>> -#include <dt-bindings/clock/ingenic,tcu.h>
>> +#include <dt-bindings/clock/ingenic,sysost.h>
>> #include <dt-bindings/interrupt-controller/irq.h>
>>
>> / {
>> @@ -31,6 +31,18 @@
>>          };
>>      };
>>
>> +    ssi0: spi-gpio {
>> +        compatible = "spi-gpio";
>> +        #address-cells = <1>;
>> +        #size-cells = <0>;
>> +        num-chipselects = <1>;
>> +
>> +        mosi-gpios = <&gpc 12 GPIO_ACTIVE_HIGH>;
>> +        miso-gpios = <&gpc 11 GPIO_ACTIVE_HIGH>;
>> +        sck-gpios = <&gpc 15 GPIO_ACTIVE_HIGH>;
>> +        cs-gpios = <&gpc 16 GPIO_ACTIVE_HIGH>;
>> +    };
>> +
>>      wlan_pwrseq: msc1-pwrseq {
>>          compatible = "mmc-pwrseq-simple";
>>
>> @@ -43,13 +55,19 @@
>>      clock-frequency = <24000000>;
>> };
>>
>> -&tcu {
>> +&cgu {
>> +    /*
>> +     * Use the 32.768 kHz oscillator as the parent of the RTC for a
>> higher
>> +     * precision.
>> +     */
>> +    assigned-clocks = <&cgu X1830_CLK_RTC>;
>> +    assigned-clock-parents = <&cgu X1830_CLK_RTCLK>;
>> +};
>> +
>> +&ost {
>>      /* 1500 kHz for the system timer and clocksource */
>> -    assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER2>;
>> +    assigned-clocks = <&ost OST_CLK_PERCPU_TIMER>, <&ost
>> OST_CLK_GLOBAL_TIMER>;
>>      assigned-clock-rates = <1500000>, <1500000>;
>> -
>> -    /* Use channel #0 for the system timer channel #2 for the
>> clocksource */
>> -    ingenic,pwm-channels-mask = <0xfa>;
>> };
>>
>> &uart1 {
>> @@ -59,6 +77,32 @@
>>      pinctrl-0 = <&pins_uart1>;
>> };
>>
>> +&ssi0 {
>> +    status = "okay";
>> +
>> +    spi-max-frequency = <50000000>;
>> +
>> +    sc16is752: expander@0 {
>> +        compatible = "nxp,sc16is752";
>> +        reg = <0>; /* CE0 */
>> +        spi-max-frequency = <4000000>;
>> +
>> +        clocks = <&exclk_sc16is752>;
>> +
>> +        interrupt-parent = <&gpb>;
>> +        interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
>> +
>> +        gpio-controller;
>> +        #gpio-cells = <2>;
>> +
>> +        exclk_sc16is752: sc16is752 {
>> +            compatible = "fixed-clock";
>> +            #clock-cells = <0>;
>> +            clock-frequency = <48000000>;
>> +        };
>> +    };
>> +};
>> +
>> &i2c0 {
>>      status = "okay";
>>
>> @@ -135,6 +179,10 @@
>>      };
>> };
>>
>> +&otg {
>> +    status = "okay";
>> +};
>> +
>> &pinctrl {
>>      pins_uart1: uart1 {
>>          function = "uart1";
>> diff --git a/arch/mips/boot/dts/ingenic/jz4780.dtsi
>> b/arch/mips/boot/dts/ingenic/jz4780.dtsi
>> index dfb5a7e1bb21..8837147e5a84 100644
>> --- a/arch/mips/boot/dts/ingenic/jz4780.dtsi
>> +++ b/arch/mips/boot/dts/ingenic/jz4780.dtsi
>> @@ -61,13 +61,30 @@
>>      };
>>
>>      cgu: jz4780-cgu@10000000 {
>> -        compatible = "ingenic,jz4780-cgu";
>> +        compatible = "ingenic,jz4780-cgu", "simple-mfd";
>>          reg = <0x10000000 0x100>;
>> +        #address-cells = <1>;
>> +        #size-cells = <1>;
>> +        ranges = <0x0 0x10000000 0x100>;
>> +
>> +        #clock-cells = <1>;
>>
>>          clocks = <&ext>, <&rtc>;
>>          clock-names = "ext", "rtc";
>>
>> -        #clock-cells = <1>;
>> +        otg_phy: usb-phy@3c {
>> +            compatible = "ingenic,jz4780-phy";
>> +            reg = <0x3c 0x10>;
>> +
>> +            clocks = <&cgu JZ4780_CLK_OTG1>;
>> +
>> +            #phy-cells = <0>;
>
> Something I missed in my first email: you lack the "vcc-supply"
> required property here. But I'm not sure what it should be linked to.
>

I checked the datasheet of JZ4780. There are 3 power pins rekated to
USB: VBUS, AVDUSB33, and AVDUSB25, but it is not clearly described on
the datasheet whether it is for the USB PHY or the USB controller. And
it is strange that now it can works properly without vcc-supply. Maybe
vcc-supply is not necessarily required? If so, should we mark it as
optional? On the other hand, if vcc-supply is indeed required, do we
need to add two new vccs to ensure one-to-on correspondence with the
aforementioned three power supplies?

Thanks and best regards!

> -Paul
>
>> +        };
>> +
>> +        rng: rng@d8 {
>> +            compatible = "ingenic,jz4780-rng";
>> +            reg = <0xd8 0x8>;
>> +        };
>>      };
>>
>>      tcu: timer@10002000 {
>> @@ -494,4 +511,24 @@
>>
>>          status = "disabled";
>>      };
>> +
>> +    otg: usb@13500000 {
>> +        compatible = "ingenic,jz4780-otg", "snps,dwc2";
>> +        reg = <0x13500000 0x40000>;
>> +
>> +        interrupt-parent = <&intc>;
>> +        interrupts = <21>;
>> +
>> +        clocks = <&cgu JZ4780_CLK_UHC>;
>> +        clock-names = "otg";
>> +
>> +        phys = <&otg_phy>;
>> +        phy-names = "usb2-phy";
>> +
>> +        g-rx-fifo-size = <768>;
>> +        g-np-tx-fifo-size = <256>;
>> +        g-tx-fifo-size = <256 256 256 256 256 256 256 512>;
>> +
>> +        status = "disabled";
>> +    };
>> };
>> diff --git a/arch/mips/boot/dts/ingenic/x1000.dtsi
>> b/arch/mips/boot/dts/ingenic/x1000.dtsi
>> index 1f1f896dd1f7..854fac58f45e 100644
>> --- a/arch/mips/boot/dts/ingenic/x1000.dtsi
>> +++ b/arch/mips/boot/dts/ingenic/x1000.dtsi
>> @@ -52,13 +52,43 @@
>>      };
>>
>>      cgu: x1000-cgu@10000000 {
>> -        compatible = "ingenic,x1000-cgu";
>> +        compatible = "ingenic,x1000-cgu", "simple-mfd";
>>          reg = <0x10000000 0x100>;
>> +        #address-cells = <1>;
>> +        #size-cells = <1>;
>> +        ranges = <0x0 0x10000000 0x100>;
>>
>>          #clock-cells = <1>;
>>
>>          clocks = <&exclk>, <&rtclk>;
>>          clock-names = "ext", "rtc";
>> +
>> +        otg_phy: usb-phy@3c {
>> +            compatible = "ingenic,x1000-phy";
>> +            reg = <0x3c 0x10>;
>> +
>> +            clocks = <&cgu X1000_CLK_OTGPHY>;
>> +
>> +            #phy-cells = <0>;
>> +        };
>> +
>> +        rng: rng@d8 {
>> +            compatible = "ingenic,x1000-rng";
>> +            reg = <0xd8 0x8>;
>> +        };
>> +    };
>> +
>> +    ost: timer@12000000 {
>> +        compatible = "ingenic,x1000-ost";
>> +        reg = <0x12000000 0x3c>;
>> +
>> +        #clock-cells = <1>;
>> +
>> +        clocks = <&cgu X1000_CLK_OST>;
>> +        clock-names = "ost";
>> +
>> +        interrupt-parent = <&cpuintc>;
>> +        interrupts = <3>;
>>      };
>>
>>      tcu: timer@10002000 {
>> @@ -323,4 +353,24 @@
>>              status = "disabled";
>>          };
>>      };
>> +
>> +    otg: usb@13500000 {
>> +        compatible = "ingenic,x1000-otg", "snps,dwc2";
>> +        reg = <0x13500000 0x40000>;
>> +
>> +        interrupt-parent = <&intc>;
>> +        interrupts = <21>;
>> +
>> +        clocks = <&cgu X1000_CLK_OTG>;
>> +        clock-names = "otg";
>> +
>> +        phys = <&otg_phy>;
>> +        phy-names = "usb2-phy";
>> +
>> +        g-rx-fifo-size = <768>;
>> +        g-np-tx-fifo-size = <256>;
>> +        g-tx-fifo-size = <256 256 256 256 256 256 256 512>;
>> +
>> +        status = "disabled";
>> +    };
>> };
>> diff --git a/arch/mips/boot/dts/ingenic/x1830.dtsi
>> b/arch/mips/boot/dts/ingenic/x1830.dtsi
>> index b05dac3ae308..4831350efdf2 100644
>> --- a/arch/mips/boot/dts/ingenic/x1830.dtsi
>> +++ b/arch/mips/boot/dts/ingenic/x1830.dtsi
>> @@ -52,13 +52,38 @@
>>      };
>>
>>      cgu: x1830-cgu@10000000 {
>> -        compatible = "ingenic,x1830-cgu";
>> +        compatible = "ingenic,x1830-cgu", "simple-mfd";
>>          reg = <0x10000000 0x100>;
>> +        #address-cells = <1>;
>> +        #size-cells = <1>;
>> +        ranges = <0x0 0x10000000 0x100>;
>>
>>          #clock-cells = <1>;
>>
>>          clocks = <&exclk>, <&rtclk>;
>>          clock-names = "ext", "rtc";
>> +
>> +        otg_phy: usb-phy@3c {
>> +            compatible = "ingenic,x1830-phy";
>> +            reg = <0x3c 0x10>;
>> +
>> +            clocks = <&cgu X1830_CLK_OTGPHY>;
>> +
>> +            #phy-cells = <0>;
>> +        };
>> +    };
>> +
>> +    ost: timer@12000000 {
>> +        compatible = "ingenic,x1830-ost", "ingenic,x1000-ost";
>> +        reg = <0x12000000 0x3c>;
>> +
>> +        #clock-cells = <1>;
>> +
>> +        clocks = <&cgu X1830_CLK_OST>;
>> +        clock-names = "ost";
>> +
>> +        interrupt-parent = <&cpuintc>;
>> +        interrupts = <4>;
>>      };
>>
>>      tcu: timer@10002000 {
>> @@ -236,6 +261,13 @@
>>          status = "disabled";
>>      };
>>
>> +    dtrng: trng@10072000 {
>> +        compatible = "ingenic,x1830-dtrng";
>> +        reg = <0x10072000 0xc>;
>> +
>> +        clocks = <&cgu X1830_CLK_DTRNG>;
>> +    };
>> +
>>      pdma: dma-controller@13420000 {
>>          compatible = "ingenic,x1830-dma";
>>          reg = <0x13420000 0x400
>> @@ -311,4 +343,24 @@
>>              status = "disabled";
>>          };
>>      };
>> +
>> +    otg: usb@13500000 {
>> +        compatible = "ingenic,x1830-otg", "snps,dwc2";
>> +        reg = <0x13500000 0x40000>;
>> +
>> +        interrupt-parent = <&intc>;
>> +        interrupts = <21>;
>> +
>> +        clocks = <&cgu X1830_CLK_OTG>;
>> +        clock-names = "otg";
>> +
>> +        phys = <&otg_phy>;
>> +        phy-names = "usb2-phy";
>> +
>> +        g-rx-fifo-size = <768>;
>> +        g-np-tx-fifo-size = <256>;
>> +        g-tx-fifo-size = <256 256 256 256 256 256 256 512>;
>> +
>> +        status = "disabled";
>> +    };
>> };
>> --
>> 2.11.0
>>
>

2020-11-13 12:16:38

by Paul Cercueil

[permalink] [raw]

Subject: Re: [PATCH 1/2] MIPS: Ingenic: Add missing nodes for Ingenic SoCs and boards.

Hi Zhou,

Le mar. 10 nov. 2020 à 14:31, Zhou Yanjie <[email protected]>
a écrit :
> Hi Paul,
>
> On 2020/11/10 上午7:37, Paul Cercueil wrote:
>>
>>
>> Le sam. 7 nov. 2020 à 19:52, 周琰杰 (Zhou Yanjie)
>> <[email protected]> a écrit :
>>> 1.Add OTG/OTG PHY/RNG nodes for JZ4780, CGU/OTG nodes for CI20.
>>> 2.Add OTG/OTG PHY/RNG/OST nodes for X1000, SSI/CGU/OST/OTG/SC16IS752
>>> nodes for CU1000-Neo.
>>> 3.Add OTG/OTG PHY/DTRNG/OST nodes for X1830,
>>> SSI/CGU/OST/OTG/SC16IS752
>>> nodes for CU1830-Neo.
>>>
>>> Tested-by: 周正 (Zhou Zheng) <[email protected]>
>>> Signed-off-by: 周琰杰 (Zhou Yanjie) <[email protected]>
>>> ---
>>> arch/mips/boot/dts/ingenic/ci20.dts | 16 +++++++++
>>> arch/mips/boot/dts/ingenic/cu1000-neo.dts | 60
>>> +++++++++++++++++++++++++++----
>>> arch/mips/boot/dts/ingenic/cu1830-neo.dts | 60
>>> +++++++++++++++++++++++++++----
>>> arch/mips/boot/dts/ingenic/jz4780.dtsi | 41
>>> +++++++++++++++++++--
>>> arch/mips/boot/dts/ingenic/x1000.dtsi | 52
>>> ++++++++++++++++++++++++++-
>>> arch/mips/boot/dts/ingenic/x1830.dtsi | 54
>>> +++++++++++++++++++++++++++-
>>> 6 files changed, 267 insertions(+), 16 deletions(-)
>>>
>>> diff --git a/arch/mips/boot/dts/ingenic/ci20.dts
>>> b/arch/mips/boot/dts/ingenic/ci20.dts
>>> index 75f5bfbf2c37..b31054a41754 100644
>>> --- a/arch/mips/boot/dts/ingenic/ci20.dts
>>> +++ b/arch/mips/boot/dts/ingenic/ci20.dts
>>> @@ -93,6 +93,15 @@
>>> clock-frequency = <48000000>;
>>> };
>>>
>>> +&cgu {
>>> + /*
>>> + * Use the 32.768 kHz oscillator as the parent of the RTC for
>>> a higher
>>> + * precision.
>>> + */
>>> + assigned-clocks = <&cgu JZ4780_CLK_RTC>;
>>> + assigned-clock-parents = <&cgu JZ4780_CLK_RTCLK>;
>>> +};
>>> +
>>> &mmc0 {
>>> status = "okay";
>>>
>>> @@ -396,6 +405,13 @@
>>> status = "okay";
>>> };
>>>
>>> +&otg {
>>> + status = "okay";
>>> +
>>> + assigned-clocks = <&cgu JZ4780_CLK_OTGPHY>;
>>> + assigned-clock-rates = <48000000>;
>>> +};
>>> +
>>> &pinctrl {
>>> pins_uart0: uart0 {
>>> function = "uart0";
>>> diff --git a/arch/mips/boot/dts/ingenic/cu1000-neo.dts
>>> b/arch/mips/boot/dts/ingenic/cu1000-neo.dts
>>> index 22a1066d637b..44d47d12db12 100644
>>> --- a/arch/mips/boot/dts/ingenic/cu1000-neo.dts
>>> +++ b/arch/mips/boot/dts/ingenic/cu1000-neo.dts
>>> @@ -3,7 +3,7 @@
>>>
>>> #include "x1000.dtsi"
>>> #include <dt-bindings/gpio/gpio.h>
>>> -#include <dt-bindings/clock/ingenic,tcu.h>
>>> +#include <dt-bindings/clock/ingenic,sysost.h>
>>> #include <dt-bindings/interrupt-controller/irq.h>
>>>
>>> / {
>>> @@ -31,6 +31,18 @@
>>> };
>>> };
>>>
>>> + ssi: spi-gpio {
>>> + compatible = "spi-gpio";
>>> + #address-cells = <1>;
>>> + #size-cells = <0>;
>>> + num-chipselects = <1>;
>>> +
>>> + mosi-gpios = <&gpd 2 GPIO_ACTIVE_HIGH>;
>>> + miso-gpios = <&gpd 3 GPIO_ACTIVE_HIGH>;
>>> + sck-gpios = <&gpd 0 GPIO_ACTIVE_HIGH>;
>>> + cs-gpios = <&gpd 1 GPIO_ACTIVE_HIGH>;
>>> + };
>>> +
>>> wlan_pwrseq: msc1-pwrseq {
>>> compatible = "mmc-pwrseq-simple";
>>>
>>> @@ -43,13 +55,19 @@
>>> clock-frequency = <24000000>;
>>> };
>>>
>>> -&tcu {
>>> +&cgu {
>>> + /*
>>> + * Use the 32.768 kHz oscillator as the parent of the RTC for
>>> a higher
>>> + * precision.
>>> + */
>>> + assigned-clocks = <&cgu X1000_CLK_RTC>;
>>> + assigned-clock-parents = <&cgu X1000_CLK_RTCLK>;
>>> +};
>>> +
>>> +&ost {
>>> /* 1500 kHz for the system timer and clocksource */
>>> - assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER2>;
>>> + assigned-clocks = <&ost OST_CLK_PERCPU_TIMER>, <&ost
>>> OST_CLK_GLOBAL_TIMER>;
>>> assigned-clock-rates = <1500000>, <1500000>;
>>> -
>>> - /* Use channel #0 for the system timer channel #2 for the
>>> clocksource */
>>> - ingenic,pwm-channels-mask = <0xfa>;
>>> };
>>>
>>> &uart2 {
>>> @@ -59,6 +77,32 @@
>>> pinctrl-0 = <&pins_uart2>;
>>> };
>>>
>>> +&ssi {
>>> + status = "okay";
>>> +
>>> + spi-max-frequency = <50000000>;
>>> +
>>> + sc16is752: expander@0 {
>>> + compatible = "nxp,sc16is752";
>>> + reg = <0>; /* CE0 */
>>> + spi-max-frequency = <4000000>;
>>> +
>>> + clocks = <&exclk_sc16is752>;
>>> +
>>> + interrupt-parent = <&gpc>;
>>> + interrupts = <6 IRQ_TYPE_EDGE_FALLING>;
>>> +
>>> + gpio-controller;
>>> + #gpio-cells = <2>;
>>> +
>>> + exclk_sc16is752: sc16is752 {
>>> + compatible = "fixed-clock";
>>> + #clock-cells = <0>;
>>> + clock-frequency = <48000000>;
>>> + };
>>> + };
>>> +};
>>> +
>>> &i2c0 {
>>> status = "okay";
>>>
>>> @@ -135,6 +179,10 @@
>>> };
>>> };
>>>
>>> +&otg {
>>> + status = "okay";
>>> +};
>>> +
>>> &pinctrl {
>>> pins_uart2: uart2 {
>>> function = "uart2";
>>> diff --git a/arch/mips/boot/dts/ingenic/cu1830-neo.dts
>>> b/arch/mips/boot/dts/ingenic/cu1830-neo.dts
>>> index 640f96c00d63..7a56e344e429 100644
>>> --- a/arch/mips/boot/dts/ingenic/cu1830-neo.dts
>>> +++ b/arch/mips/boot/dts/ingenic/cu1830-neo.dts
>>> @@ -3,7 +3,7 @@
>>>
>>> #include "x1830.dtsi"
>>> #include <dt-bindings/gpio/gpio.h>
>>> -#include <dt-bindings/clock/ingenic,tcu.h>
>>> +#include <dt-bindings/clock/ingenic,sysost.h>
>>> #include <dt-bindings/interrupt-controller/irq.h>
>>>
>>> / {
>>> @@ -31,6 +31,18 @@
>>> };
>>> };
>>>
>>> + ssi0: spi-gpio {
>>> + compatible = "spi-gpio";
>>> + #address-cells = <1>;
>>> + #size-cells = <0>;
>>> + num-chipselects = <1>;
>>> +
>>> + mosi-gpios = <&gpc 12 GPIO_ACTIVE_HIGH>;
>>> + miso-gpios = <&gpc 11 GPIO_ACTIVE_HIGH>;
>>> + sck-gpios = <&gpc 15 GPIO_ACTIVE_HIGH>;
>>> + cs-gpios = <&gpc 16 GPIO_ACTIVE_HIGH>;
>>> + };
>>> +
>>> wlan_pwrseq: msc1-pwrseq {
>>> compatible = "mmc-pwrseq-simple";
>>>
>>> @@ -43,13 +55,19 @@
>>> clock-frequency = <24000000>;
>>> };
>>>
>>> -&tcu {
>>> +&cgu {
>>> + /*
>>> + * Use the 32.768 kHz oscillator as the parent of the RTC for
>>> a higher
>>> + * precision.
>>> + */
>>> + assigned-clocks = <&cgu X1830_CLK_RTC>;
>>> + assigned-clock-parents = <&cgu X1830_CLK_RTCLK>;
>>> +};
>>> +
>>> +&ost {
>>> /* 1500 kHz for the system timer and clocksource */
>>> - assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER2>;
>>> + assigned-clocks = <&ost OST_CLK_PERCPU_TIMER>, <&ost
>>> OST_CLK_GLOBAL_TIMER>;
>>> assigned-clock-rates = <1500000>, <1500000>;
>>> -
>>> - /* Use channel #0 for the system timer channel #2 for the
>>> clocksource */
>>> - ingenic,pwm-channels-mask = <0xfa>;
>>> };
>>>
>>> &uart1 {
>>> @@ -59,6 +77,32 @@
>>> pinctrl-0 = <&pins_uart1>;
>>> };
>>>
>>> +&ssi0 {
>>> + status = "okay";
>>> +
>>> + spi-max-frequency = <50000000>;
>>> +
>>> + sc16is752: expander@0 {
>>> + compatible = "nxp,sc16is752";
>>> + reg = <0>; /* CE0 */
>>> + spi-max-frequency = <4000000>;
>>> +
>>> + clocks = <&exclk_sc16is752>;
>>> +
>>> + interrupt-parent = <&gpb>;
>>> + interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
>>> +
>>> + gpio-controller;
>>> + #gpio-cells = <2>;
>>> +
>>> + exclk_sc16is752: sc16is752 {
>>> + compatible = "fixed-clock";
>>> + #clock-cells = <0>;
>>> + clock-frequency = <48000000>;
>>> + };
>>> + };
>>> +};
>>> +
>>> &i2c0 {
>>> status = "okay";
>>>
>>> @@ -135,6 +179,10 @@
>>> };
>>> };
>>>
>>> +&otg {
>>> + status = "okay";
>>> +};
>>> +
>>> &pinctrl {
>>> pins_uart1: uart1 {
>>> function = "uart1";
>>> diff --git a/arch/mips/boot/dts/ingenic/jz4780.dtsi
>>> b/arch/mips/boot/dts/ingenic/jz4780.dtsi
>>> index dfb5a7e1bb21..8837147e5a84 100644
>>> --- a/arch/mips/boot/dts/ingenic/jz4780.dtsi
>>> +++ b/arch/mips/boot/dts/ingenic/jz4780.dtsi
>>> @@ -61,13 +61,30 @@
>>> };
>>>
>>> cgu: jz4780-cgu@10000000 {
>>> - compatible = "ingenic,jz4780-cgu";
>>> + compatible = "ingenic,jz4780-cgu", "simple-mfd";
>>> reg = <0x10000000 0x100>;
>>> + #address-cells = <1>;
>>> + #size-cells = <1>;
>>> + ranges = <0x0 0x10000000 0x100>;
>>> +
>>> + #clock-cells = <1>;
>>>
>>> clocks = <&ext>, <&rtc>;
>>> clock-names = "ext", "rtc";
>>>
>>> - #clock-cells = <1>;
>>> + otg_phy: usb-phy@3c {
>>> + compatible = "ingenic,jz4780-phy";
>>> + reg = <0x3c 0x10>;
>>> +
>>> + clocks = <&cgu JZ4780_CLK_OTG1>;
>>> +
>>> + #phy-cells = <0>;
>>
>> Something I missed in my first email: you lack the "vcc-supply"
>> required property here. But I'm not sure what it should be linked
>> to.
>>
>
> I checked the datasheet of JZ4780. There are 3 power pins rekated to
> USB: VBUS, AVDUSB33, and AVDUSB25, but it is not clearly described on
> the datasheet whether it is for the USB PHY or the USB controller.
> And it is strange that now it can works properly without vcc-supply.
> Maybe vcc-supply is not necessarily required? If so, should we mark
> it as optional? On the other hand, if vcc-supply is indeed required,
> do we need to add two new vccs to ensure one-to-on correspondence
> with the aforementioned three power supplies?

On the GCW-Zero, USB (gadget) doesn't work unless a power supply is
enabled in the external ACT8600 chip. We don't have the design files so
we don't really know where is that power supply actually connected to,
so we assumed it was the USB PHY. I don't really know what's the play
here - maybe you don't need a vcc-supply (and in this case it should be
made optional in the binding), maybe you do need one but it's enabled
by default (maybe disabled through a GPIO?).

The easiest fix would be to set:
&otg_phy {
vcc-supply = <&vcc>;
}
in the ci20.dts.

But as I said above - I'm not really sure what to do here.

Cheers,
-Paul

>>> + };
>>> +
>>> + rng: rng@d8 {
>>> + compatible = "ingenic,jz4780-rng";
>>> + reg = <0xd8 0x8>;
>>> + };
>>> };
>>>
>>> tcu: timer@10002000 {
>>> @@ -494,4 +511,24 @@
>>>
>>> status = "disabled";
>>> };
>>> +
>>> + otg: usb@13500000 {
>>> + compatible = "ingenic,jz4780-otg", "snps,dwc2";
>>> + reg = <0x13500000 0x40000>;
>>> +
>>> + interrupt-parent = <&intc>;
>>> + interrupts = <21>;
>>> +
>>> + clocks = <&cgu JZ4780_CLK_UHC>;
>>> + clock-names = "otg";
>>> +
>>> + phys = <&otg_phy>;
>>> + phy-names = "usb2-phy";
>>> +
>>> + g-rx-fifo-size = <768>;
>>> + g-np-tx-fifo-size = <256>;
>>> + g-tx-fifo-size = <256 256 256 256 256 256 256 512>;
>>> +
>>> + status = "disabled";
>>> + };
>>> };
>>> diff --git a/arch/mips/boot/dts/ingenic/x1000.dtsi
>>> b/arch/mips/boot/dts/ingenic/x1000.dtsi
>>> index 1f1f896dd1f7..854fac58f45e 100644
>>> --- a/arch/mips/boot/dts/ingenic/x1000.dtsi
>>> +++ b/arch/mips/boot/dts/ingenic/x1000.dtsi
>>> @@ -52,13 +52,43 @@
>>> };
>>>
>>> cgu: x1000-cgu@10000000 {
>>> - compatible = "ingenic,x1000-cgu";
>>> + compatible = "ingenic,x1000-cgu", "simple-mfd";
>>> reg = <0x10000000 0x100>;
>>> + #address-cells = <1>;
>>> + #size-cells = <1>;
>>> + ranges = <0x0 0x10000000 0x100>;
>>>
>>> #clock-cells = <1>;
>>>
>>> clocks = <&exclk>, <&rtclk>;
>>> clock-names = "ext", "rtc";
>>> +
>>> + otg_phy: usb-phy@3c {
>>> + compatible = "ingenic,x1000-phy";
>>> + reg = <0x3c 0x10>;
>>> +
>>> + clocks = <&cgu X1000_CLK_OTGPHY>;
>>> +
>>> + #phy-cells = <0>;
>>> + };
>>> +
>>> + rng: rng@d8 {
>>> + compatible = "ingenic,x1000-rng";
>>> + reg = <0xd8 0x8>;
>>> + };
>>> + };
>>> +
>>> + ost: timer@12000000 {
>>> + compatible = "ingenic,x1000-ost";
>>> + reg = <0x12000000 0x3c>;
>>> +
>>> + #clock-cells = <1>;
>>> +
>>> + clocks = <&cgu X1000_CLK_OST>;
>>> + clock-names = "ost";
>>> +
>>> + interrupt-parent = <&cpuintc>;
>>> + interrupts = <3>;
>>> };
>>>
>>> tcu: timer@10002000 {
>>> @@ -323,4 +353,24 @@
>>> status = "disabled";
>>> };
>>> };
>>> +
>>> + otg: usb@13500000 {
>>> + compatible = "ingenic,x1000-otg", "snps,dwc2";
>>> + reg = <0x13500000 0x40000>;
>>> +
>>> + interrupt-parent = <&intc>;
>>> + interrupts = <21>;
>>> +
>>> + clocks = <&cgu X1000_CLK_OTG>;
>>> + clock-names = "otg";
>>> +
>>> + phys = <&otg_phy>;
>>> + phy-names = "usb2-phy";
>>> +
>>> + g-rx-fifo-size = <768>;
>>> + g-np-tx-fifo-size = <256>;
>>> + g-tx-fifo-size = <256 256 256 256 256 256 256 512>;
>>> +
>>> + status = "disabled";
>>> + };
>>> };
>>> diff --git a/arch/mips/boot/dts/ingenic/x1830.dtsi
>>> b/arch/mips/boot/dts/ingenic/x1830.dtsi
>>> index b05dac3ae308..4831350efdf2 100644
>>> --- a/arch/mips/boot/dts/ingenic/x1830.dtsi
>>> +++ b/arch/mips/boot/dts/ingenic/x1830.dtsi
>>> @@ -52,13 +52,38 @@
>>> };
>>>
>>> cgu: x1830-cgu@10000000 {
>>> - compatible = "ingenic,x1830-cgu";
>>> + compatible = "ingenic,x1830-cgu", "simple-mfd";
>>> reg = <0x10000000 0x100>;
>>> + #address-cells = <1>;
>>> + #size-cells = <1>;
>>> + ranges = <0x0 0x10000000 0x100>;
>>>
>>> #clock-cells = <1>;
>>>
>>> clocks = <&exclk>, <&rtclk>;
>>> clock-names = "ext", "rtc";
>>> +
>>> + otg_phy: usb-phy@3c {
>>> + compatible = "ingenic,x1830-phy";
>>> + reg = <0x3c 0x10>;
>>> +
>>> + clocks = <&cgu X1830_CLK_OTGPHY>;
>>> +
>>> + #phy-cells = <0>;
>>> + };
>>> + };
>>> +
>>> + ost: timer@12000000 {
>>> + compatible = "ingenic,x1830-ost", "ingenic,x1000-ost";
>>> + reg = <0x12000000 0x3c>;
>>> +
>>> + #clock-cells = <1>;
>>> +
>>> + clocks = <&cgu X1830_CLK_OST>;
>>> + clock-names = "ost";
>>> +
>>> + interrupt-parent = <&cpuintc>;
>>> + interrupts = <4>;
>>> };
>>>
>>> tcu: timer@10002000 {
>>> @@ -236,6 +261,13 @@
>>> status = "disabled";
>>> };
>>>
>>> + dtrng: trng@10072000 {
>>> + compatible = "ingenic,x1830-dtrng";
>>> + reg = <0x10072000 0xc>;
>>> +
>>> + clocks = <&cgu X1830_CLK_DTRNG>;
>>> + };
>>> +
>>> pdma: dma-controller@13420000 {
>>> compatible = "ingenic,x1830-dma";
>>> reg = <0x13420000 0x400
>>> @@ -311,4 +343,24 @@
>>> status = "disabled";
>>> };
>>> };
>>> +
>>> + otg: usb@13500000 {
>>> + compatible = "ingenic,x1830-otg", "snps,dwc2";
>>> + reg = <0x13500000 0x40000>;
>>> +
>>> + interrupt-parent = <&intc>;
>>> + interrupts = <21>;
>>> +
>>> + clocks = <&cgu X1830_CLK_OTG>;
>>> + clock-names = "otg";
>>> +
>>> + phys = <&otg_phy>;
>>> + phy-names = "usb2-phy";
>>> +
>>> + g-rx-fifo-size = <768>;
>>> + g-np-tx-fifo-size = <256>;
>>> + g-tx-fifo-size = <256 256 256 256 256 256 256 512>;
>>> +
>>> + status = "disabled";
>>> + };
>>> };
>>> --
>>> 2.11.0
>>>
>>