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Message-ID: <CAJM55Z9LF8wzvVR71giLYwDqgbQfJzytmifyFo50GcQ8Gt3DNg@mail.gmail.com>
Date: Wed, 12 Jul 2023 19:49:36 +0200
From: Emil Renner Berthing <emil.renner.berthing@...onical.com>
To: Xingyu Wu <xingyu.wu@...rfivetech.com>
Cc: linux-riscv@...ts.infradead.org, devicetree@...r.kernel.org,
Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>,
Philipp Zabel <p.zabel@...gutronix.de>,
Conor Dooley <conor@...nel.org>,
Emil Renner Berthing <kernel@...il.dk>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>,
Hal Feng <hal.feng@...rfivetech.com>,
linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org
Subject: Re: [PATCH v7 1/9] dt-bindings: clock: Add StarFive JH7110
System-Top-Group clock and reset generator
On Wed, 12 Jul 2023 at 11:22, Xingyu Wu <xingyu.wu@...rfivetech.com> wrote:
>
> Add bindings for the System-Top-Group clock and reset generator (STGCRG)
> on the JH7110 RISC-V SoC by StarFive Ltd.
>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Reviewed-by: Emil Renner Berthing <emil.renner.berthing@...onical.com>
> Signed-off-by: Xingyu Wu <xingyu.wu@...rfivetech.com>
> ---
> .../clock/starfive,jh7110-stgcrg.yaml | 82 +++++++++++++++++++
> .../dt-bindings/clock/starfive,jh7110-crg.h | 34 ++++++++
> .../dt-bindings/reset/starfive,jh7110-crg.h | 28 +++++++
> 3 files changed, 144 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/clock/starfive,jh7110-stgcrg.yaml
>
> diff --git a/Documentation/devicetree/bindings/clock/starfive,jh7110-stgcrg.yaml b/Documentation/devicetree/bindings/clock/starfive,jh7110-stgcrg.yaml
> new file mode 100644
> index 000000000000..b64ccd84200a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/starfive,jh7110-stgcrg.yaml
> @@ -0,0 +1,82 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/starfive,jh7110-stgcrg.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: StarFive JH7110 System-Top-Group Clock and Reset Generator
> +
> +maintainers:
> + - Xingyu Wu <xingyu.wu@...rfivetech.com>
> +
> +properties:
> + compatible:
> + const: starfive,jh7110-stgcrg
> +
> + reg:
> + maxItems: 1
> +
> + clocks:
> + items:
> + - description: Main Oscillator (24 MHz)
> + - description: HIFI4 core
> + - description: STG AXI/AHB
> + - description: USB (125 MHz)
> + - description: CPU Bus
> + - description: HIFI4 Axi
> + - description: NOC STG Bus
> + - description: APB Bus
> +
> + clock-names:
> + items:
> + - const: osc
> + - const: hifi4_core
> + - const: stg_axiahb
> + - const: usb_125m
> + - const: cpu_bus
> + - const: hifi4_axi
> + - const: nocstg_bus
> + - const: apb_bus
> +
> + '#clock-cells':
> + const: 1
> + description:
> + See <dt-bindings/clock/starfive,jh7110-crg.h> for valid indices.
> +
> + '#reset-cells':
> + const: 1
> + description:
> + See <dt-bindings/reset/starfive,jh7110-crg.h> for valid indices.
> +
> +required:
> + - compatible
> + - reg
> + - clocks
> + - clock-names
> + - '#clock-cells'
> + - '#reset-cells'
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/starfive,jh7110-crg.h>
> +
> + stgcrg: clock-controller@...30000 {
> + compatible = "starfive,jh7110-stgcrg";
> + reg = <0x10230000 0x10000>;
> + clocks = <&osc>,
> + <&syscrg JH7110_SYSCLK_HIFI4_CORE>,
> + <&syscrg JH7110_SYSCLK_STG_AXIAHB>,
> + <&syscrg JH7110_SYSCLK_USB_125M>,
> + <&syscrg JH7110_SYSCLK_CPU_BUS>,
> + <&syscrg JH7110_SYSCLK_HIFI4_AXI>,
> + <&syscrg JH7110_SYSCLK_NOCSTG_BUS>,
> + <&syscrg JH7110_SYSCLK_APB_BUS>;
> + clock-names = "osc", "hifi4_core",
> + "stg_axiahb", "usb_125m",
> + "cpu_bus", "hifi4_axi",
> + "nocstg_bus", "apb_bus";
> + #clock-cells = <1>;
> + #reset-cells = <1>;
> + };
> diff --git a/include/dt-bindings/clock/starfive,jh7110-crg.h b/include/dt-bindings/clock/starfive,jh7110-crg.h
> index 06257bfd9ac1..6c8e8b4cf1f6 100644
> --- a/include/dt-bindings/clock/starfive,jh7110-crg.h
> +++ b/include/dt-bindings/clock/starfive,jh7110-crg.h
> @@ -1,6 +1,7 @@
> /* SPDX-License-Identifier: GPL-2.0 OR MIT */
> /*
> * Copyright 2022 Emil Renner Berthing <kernel@...il.dk>
> + * Copyright 2022 StarFive Technology Co., Ltd.
> */
>
> #ifndef __DT_BINDINGS_CLOCK_STARFIVE_JH7110_CRG_H__
> @@ -218,4 +219,37 @@
>
> #define JH7110_AONCLK_END 14
>
> +/* STGCRG clocks */
> +#define JH7110_STGCLK_HIFI4_CLK_CORE 0
> +#define JH7110_STGCLK_USB0_APB 1
> +#define JH7110_STGCLK_USB0_UTMI_APB 2
> +#define JH7110_STGCLK_USB0_AXI 3
> +#define JH7110_STGCLK_USB0_LPM 4
> +#define JH7110_STGCLK_USB0_STB 5
> +#define JH7110_STGCLK_USB0_APP_125 6
> +#define JH7110_STGCLK_USB0_REFCLK 7
> +#define JH7110_STGCLK_PCIE0_AXI_MST0 8
> +#define JH7110_STGCLK_PCIE0_APB 9
> +#define JH7110_STGCLK_PCIE0_TL 10
> +#define JH7110_STGCLK_PCIE1_AXI_MST0 11
> +#define JH7110_STGCLK_PCIE1_APB 12
> +#define JH7110_STGCLK_PCIE1_TL 13
> +#define JH7110_STGCLK_PCIE_SLV_MAIN 14
> +#define JH7110_STGCLK_SEC_AHB 15
> +#define JH7110_STGCLK_SEC_MISC_AHB 16
> +#define JH7110_STGCLK_GRP0_MAIN 17
> +#define JH7110_STGCLK_GRP0_BUS 18
> +#define JH7110_STGCLK_GRP0_STG 19
> +#define JH7110_STGCLK_GRP1_MAIN 20
> +#define JH7110_STGCLK_GRP1_BUS 21
> +#define JH7110_STGCLK_GRP1_STG 22
> +#define JH7110_STGCLK_GRP1_HIFI 23
> +#define JH7110_STGCLK_E2_RTC 24
> +#define JH7110_STGCLK_E2_CORE 25
> +#define JH7110_STGCLK_E2_DBG 26
> +#define JH7110_STGCLK_DMA1P_AXI 27
> +#define JH7110_STGCLK_DMA1P_AHB 28
> +
> +#define JH7110_STGCLK_END 29
> +
> #endif /* __DT_BINDINGS_CLOCK_STARFIVE_JH7110_CRG_H__ */
> diff --git a/include/dt-bindings/reset/starfive,jh7110-crg.h b/include/dt-bindings/reset/starfive,jh7110-crg.h
> index d78e38690ceb..4e96ab81dd8e 100644
> --- a/include/dt-bindings/reset/starfive,jh7110-crg.h
> +++ b/include/dt-bindings/reset/starfive,jh7110-crg.h
> @@ -1,6 +1,7 @@
> /* SPDX-License-Identifier: GPL-2.0 OR MIT */
> /*
> * Copyright (C) 2022 Emil Renner Berthing <kernel@...il.dk>
> + * Copyright (C) 2022 StarFive Technology Co., Ltd.
> */
>
> #ifndef __DT_BINDINGS_RESET_STARFIVE_JH7110_CRG_H__
> @@ -151,4 +152,31 @@
>
> #define JH7110_AONRST_END 8
>
> +/* STGCRG resets */
> +#define JH7110_STGRST_SYSCON 0
> +#define JH7110_STGRST_HIFI4_CORE 1
> +#define JH7110_STGRST_HIFI4_AXI 2
> +#define JH7110_STGRST_SEC_AHB 3
> +#define JH7110_STGRST_E24_CORE 4
> +#define JH7110_STGRST_DMA1P_AXI 5
> +#define JH7110_STGRST_DMA1P_AHB 6
> +#define JH7110_STGRST_USB0_AXI 7
> +#define JH7110_STGRST_USB0_APB 8
> +#define JH7110_STGRST_USB0_UTMI_APB 9
> +#define JH7110_STGRST_USB0_PWRUP 10
> +#define JH7110_STGRST_PCIE0_AXI_MST0 11
> +#define JH7110_STGRST_PCIE0_AXI_SLV0 12
> +#define JH7110_STGRST_PCIE0_AXI_SLV 13
> +#define JH7110_STGRST_PCIE0_BRG 14
> +#define JH7110_STGRST_PCIE0_CORE 15
> +#define JH7110_STGRST_PCIE0_APB 16
> +#define JH7110_STGRST_PCIE1_AXI_MST0 17
> +#define JH7110_STGRST_PCIE1_AXI_SLV0 18
> +#define JH7110_STGRST_PCIE1_AXI_SLV 19
> +#define JH7110_STGRST_PCIE1_BRG 20
> +#define JH7110_STGRST_PCIE1_CORE 21
> +#define JH7110_STGRST_PCIE1_APB 22
> +
> +#define JH7110_STGRST_END 23
> +
> #endif /* __DT_BINDINGS_RESET_STARFIVE_JH7110_CRG_H__ */
> --
> 2.25.1
>
>
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