| Message ID | 1571391167-79679-2-git-send-email-jianxin.pan@amlogic.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | arm64: meson: add support for A1 Power Domains | expand |
On Fri, Oct 18, 2019 at 05:32:44PM +0800, Jianxin Pan wrote: > Add the bindings for the Amlogic Secure power domains, controlling the > secure power domains. > > The bindings targets the Amlogic A1 and C1 compatible SoCs, in which the > power domain registers are in secure world. > > Signed-off-by: Jianxin Pan <jianxin.pan@amlogic.com> > --- > .../bindings/power/amlogic,meson-sec-pwrc.yaml | 42 ++++++++++++++++++++++ > include/dt-bindings/power/meson-a1-power.h | 32 +++++++++++++++++ > 2 files changed, 74 insertions(+) > create mode 100644 Documentation/devicetree/bindings/power/amlogic,meson-sec-pwrc.yaml > create mode 100644 include/dt-bindings/power/meson-a1-power.h > > diff --git a/Documentation/devicetree/bindings/power/amlogic,meson-sec-pwrc.yaml b/Documentation/devicetree/bindings/power/amlogic,meson-sec-pwrc.yaml > new file mode 100644 > index 00000000..88d8261 > --- /dev/null > +++ b/Documentation/devicetree/bindings/power/amlogic,meson-sec-pwrc.yaml > @@ -0,0 +1,42 @@ > +# SPDX-License-Identifier: (GPL-2.0+ OR MIT) > +# Copyright (c) 2019 Amlogic, Inc > +# Author: Jianxin Pan <jianxin.pan@amlogic.com> > +%YAML 1.2 > +--- > +$id: "http://devicetree.org/schemas/power/amlogic,meson-sec-pwrc.yaml#" > +$schema: "http://devicetree.org/meta-schemas/core.yaml#" > + > +title: Amlogic Meson Secure Power Domains > + > +maintainers: > + - Jianxin Pan <jianxin.pan@amlogic.com> > + > +description: |+ > + Meson Secure Power Domains used in A1/C1 SoCs. > + > +properties: > + compatible: > + enum: > + - amlogic,meson-a1-pwrc > + > + "#power-domain-cells": > + const: 1 > + > + secure-monitor: > + description: phandle to the secure-monitor node > + $ref: /schemas/types.yaml#/definitions/phandle Like the watchdog, make this a child or the secure firmware node. Or just add '#power-domain-cells' to it. You don't really need a child node here if there's not other resources in DT for this. Rob
Hi Jerome, Could you give some advice about this? In a1/c1, watchdog and powerdomain are the same, they use secure monitor [0] and there is no share memory needed. [0] https://lore.kernel.org/linux-amlogic/20190731082339.20163-1-ccaione@baylibre.com/ On 2019/10/29 10:01, Rob Herring wrote: > On Fri, Oct 18, 2019 at 05:32:44PM +0800, Jianxin Pan wrote: >> Add the bindings for the Amlogic Secure power domains, controlling the >> secure power domains. >> >> The bindings targets the Amlogic A1 and C1 compatible SoCs, in which the >> power domain registers are in secure world. >> >> Signed-off-by: Jianxin Pan <jianxin.pan@amlogic.com> >> --- >> .../bindings/power/amlogic,meson-sec-pwrc.yaml | 42 ++++++++++++++++++++++ >> include/dt-bindings/power/meson-a1-power.h | 32 +++++++++++++++++ >> 2 files changed, 74 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/power/amlogic,meson-sec-pwrc.yaml >> create mode 100644 include/dt-bindings/power/meson-a1-power.h >> >> diff --git a/Documentation/devicetree/bindings/power/amlogic,meson-sec-pwrc.yaml b/Documentation/devicetree/bindings/power/amlogic,meson-sec-pwrc.yaml >> new file mode 100644 >> index 00000000..88d8261 >> --- /dev/null >> +++ b/Documentation/devicetree/bindings/power/amlogic,meson-sec-pwrc.yaml >> @@ -0,0 +1,42 @@ >> +# SPDX-License-Identifier: (GPL-2.0+ OR MIT) >> +# Copyright (c) 2019 Amlogic, Inc >> +# Author: Jianxin Pan <jianxin.pan@amlogic.com> >> +%YAML 1.2 >> +--- >> +$id: "http://devicetree.org/schemas/power/amlogic,meson-sec-pwrc.yaml#" >> +$schema: "http://devicetree.org/meta-schemas/core.yaml#" >> + >> +title: Amlogic Meson Secure Power Domains >> + >> +maintainers: >> + - Jianxin Pan <jianxin.pan@amlogic.com> >> + >> +description: |+ >> + Meson Secure Power Domains used in A1/C1 SoCs. >> + >> +properties: >> + compatible: >> + enum: >> + - amlogic,meson-a1-pwrc >> + >> + "#power-domain-cells": >> + const: 1 >> + >> + secure-monitor: >> + description: phandle to the secure-monitor node >> + $ref: /schemas/types.yaml#/definitions/phandle > > Like the watchdog, make this a child or the secure firmware node. Or > just add '#power-domain-cells' to it. You don't really need a child node > here if there's not other resources in DT for this. > > Rob > > . >
diff --git a/Documentation/devicetree/bindings/power/amlogic,meson-sec-pwrc.yaml b/Documentation/devicetree/bindings/power/amlogic,meson-sec-pwrc.yaml new file mode 100644 index 00000000..88d8261 --- /dev/null +++ b/Documentation/devicetree/bindings/power/amlogic,meson-sec-pwrc.yaml @@ -0,0 +1,42 @@ +# SPDX-License-Identifier: (GPL-2.0+ OR MIT) +# Copyright (c) 2019 Amlogic, Inc +# Author: Jianxin Pan <jianxin.pan@amlogic.com> +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/power/amlogic,meson-sec-pwrc.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: Amlogic Meson Secure Power Domains + +maintainers: + - Jianxin Pan <jianxin.pan@amlogic.com> + +description: |+ + Meson Secure Power Domains used in A1/C1 SoCs. + +properties: + compatible: + enum: + - amlogic,meson-a1-pwrc + + "#power-domain-cells": + const: 1 + + secure-monitor: + description: phandle to the secure-monitor node + $ref: /schemas/types.yaml#/definitions/phandle + +required: + - compatible + - "#power-domain-cells" + - secure-monitor + +examples: + - | + pwrc: power-controller { + compatible = "amlogic,meson-a1-pwrc"; + #power-domain-cells = <1>; + secure-monitor = <&sm>; + }; + + diff --git a/include/dt-bindings/power/meson-a1-power.h b/include/dt-bindings/power/meson-a1-power.h new file mode 100644 index 00000000..6cf50bf --- /dev/null +++ b/include/dt-bindings/power/meson-a1-power.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: (GPL-2.0+ or MIT) */ +/* + * Copyright (c) 2019 Amlogic, Inc. + * Author: Jianxin Pan <jianxin.pan@amlogic.com> + */ + +#ifndef _DT_BINDINGS_MESON_A1_POWER_H +#define _DT_BINDINGS_MESON_A1_POWER_H + +#define PWRC_DSPA_ID 8 +#define PWRC_DSPB_ID 9 +#define PWRC_UART_ID 10 +#define PWRC_DMC_ID 11 +#define PWRC_I2C_ID 12 +#define PWRC_PSRAM_ID 13 +#define PWRC_ACODEC_ID 14 +#define PWRC_AUDIO_ID 15 +#define PWRC_OTP_ID 16 +#define PWRC_DMA_ID 17 +#define PWRC_SD_EMMC_ID 18 +#define PWRC_RAMA_ID 19 +#define PWRC_RAMB_ID 20 +#define PWRC_IR_ID 21 +#define PWRC_SPICC_ID 22 +#define PWRC_SPIFC_ID 23 +#define PWRC_USB_ID 24 +#define PWRC_NIC_ID 25 +#define PWRC_PDMIN_ID 26 +#define PWRC_RSA_ID 27 +#define PWRC_MAX_ID 28 + +#endif
Add the bindings for the Amlogic Secure power domains, controlling the secure power domains. The bindings targets the Amlogic A1 and C1 compatible SoCs, in which the power domain registers are in secure world. Signed-off-by: Jianxin Pan <jianxin.pan@amlogic.com> --- .../bindings/power/amlogic,meson-sec-pwrc.yaml | 42 ++++++++++++++++++++++ include/dt-bindings/power/meson-a1-power.h | 32 +++++++++++++++++ 2 files changed, 74 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/amlogic,meson-sec-pwrc.yaml create mode 100644 include/dt-bindings/power/meson-a1-power.h