Re: [PATCH v1 16/16] riscv: dts: starfive: jh8100: Add clocks and resets nodes

From: Emil Renner Berthing
Date: Fri Dec 08 2023 - 11:39:53 EST

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Sia Jee Heng wrote:
> Add SYSCRG/SYSCRG-NE/SYSCRG-NW/SYSCRG-SW/AONCRG clock and reset
> nodes for JH8100 RISC-V SoC.
>
> Signed-off-by: Sia Jee Heng <jeeheng.sia@xxxxxxxxxxxxxxxx>
> Reviewed-by: Ley Foon Tan <leyfoon.tan@xxxxxxxxxxxxxxxx>
> ---
> arch/riscv/boot/dts/starfive/jh8100-clk.dtsi | 180 +++++++++++++++++++
> arch/riscv/boot/dts/starfive/jh8100.dtsi | 115 ++++++++++++

Why the split here? I mean why can't the clocks just be in the jh8100.dtsi?

> 2 files changed, 295 insertions(+)
> create mode 100644 arch/riscv/boot/dts/starfive/jh8100-clk.dtsi
>
> diff --git a/arch/riscv/boot/dts/starfive/jh8100-clk.dtsi b/arch/riscv/boot/dts/starfive/jh8100-clk.dtsi
> new file mode 100644
> index 000000000000..27ba249f523e
> --- /dev/null
> +++ b/arch/riscv/boot/dts/starfive/jh8100-clk.dtsi
> @@ -0,0 +1,180 @@
> +// SPDX-License-Identifier: GPL-2.0 OR MIT
> +/*
> + * Copyright (C) 2023 StarFive Technology Co., Ltd.
> + */
> +
> +/ {
> + clk_osc: clk_osc {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <24000000>;
> + };
> +
> + clk_i2srx_bclk_ext: clk_i2srx_bclk_ext {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <12288000>;
> + };
> +
> + clk_i2srx_lrck_ext: clk_i2srx_lrck_ext {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <192000>;
> + };
> +
> + clk_mclk_ext: clk_mclk_ext {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <49152000>;
> + };
> + /* sys-ne */
> + clk_usb3_tap_tck_ext: clk_usb3_tap_tck_ext {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <100000000>;
> + };
> +
> + clk_glb_ext_clk: clk_glb_ext_clk {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <30000000>;
> + };
> +
> + clk_usb1_tap_tck_ext: clk_usb1_tap_tck_ext {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <100000000>;
> + };
> +
> + clk_usb2_tap_tck_ext: clk_usb2_tap_tck_ext {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <100000000>;
> + };
> +
> + clk_i2s_tscko: clk_i2s_tscko {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <12800000>;
> + };
> +
> + clk_typec_tap_tck_ext: clk_typec_tap_tck_ext {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <100000000>;
> + };
> +
> + clk_spi_in0_ext: clk_spi_in0_ext {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <100000000>;
> + };
> +
> + clk_spi_in1_ext: clk_spi_in1_ext {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <100000000>;
> + };
> +
> + clk_spi_in2_ext: clk_spi_in2_ext {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <100000000>;
> + };
> +
> + clk_i2stx_bclk_ext: clk_i2stx_bclk_ext {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <12288000>;
> + };
> +
> + clk_i2stx_lrck_ext: clk_i2stx_lrck_ext {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <192000>;
> + };
> + /* sys-nw */
> + clk_dvp_ext: clk_dvp_ext {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <150000000>;
> + };
> +
> + clk_isp_dphy_tap_tck_ext: clk_isp_dphy_tap_tck_ext {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <100000000>;
> + };
> +
> + clk_vout_mipi_dphy_tap_tck_ext: clk_vout_mipi_dphy_tap_tck_ext {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <100000000>;
> + };
> +
> + clk_vout_edp_tap_tck_ext: clk_vout_edp_tap_tck_ext {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <100000000>;
> + };
> +
> + clk_rtc: clk_rtc {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <32768>;
> + };
> + /* aon */
> + clk_gmac0_rmii_func: clk_gmac0_rmii_func {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <50000000>;
> + };
> +
> + clk_gmac0_rgmii_func: clk_gmac0_rgmii_func {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <125000000>;
> + };
> +
> + clk_aon50: clk_aon50 {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <50000000>;
> + };
> +
> + clk_aon125: clk_aon125 {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <125000000>;
> + };
> +
> + clk_aon2000: clk_aon2000 {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <2000000000>;
> + };
> +
> + clk_aon200: clk_aon200 {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <200000000>;
> + };
> +
> + clk_aon667: clk_isp_aon667 {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <667000000>;
> + };
> +
> + clk_i3c_ext: clk_i3c_ext {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <12500000>;
> + };
> +
> + clk_espi_ext: clk_espi_ext {
> + compatible = "fixed-clock";
> + #clock-cells = <0>;
> + clock-frequency = <60000000>;
> + };
> +};
> diff --git a/arch/riscv/boot/dts/starfive/jh8100.dtsi b/arch/riscv/boot/dts/starfive/jh8100.dtsi
> index f26aff5c1ddf..9863c61324a0 100644
> --- a/arch/riscv/boot/dts/starfive/jh8100.dtsi
> +++ b/arch/riscv/boot/dts/starfive/jh8100.dtsi
> @@ -4,6 +4,9 @@
> */
>
> /dts-v1/;
> +#include <dt-bindings/clock/starfive,jh8100-crg.h>
> +#include <dt-bindings/reset/starfive,jh8100-crg.h>
> +#include "jh8100-clk.dtsi"
>
> / {
> compatible = "starfive,jh8100";
> @@ -357,6 +360,104 @@ uart4: serial@121a0000 {
> status = "disabled";
> };
>
> + syscrg_ne: syscrg_ne@12320000 {
> + compatible = "starfive,jh8100-syscrg-ne";
> + reg = <0x0 0x12320000 0x0 0x10000>;
> + clocks = <&clk_osc>, <&syscrg SYSCRG_CLK_AXI_400>,
> + <&syscrg SYSCRG_CLK_VOUT_ROOT0>,
> + <&syscrg SYSCRG_CLK_VOUT_ROOT1>,
> + <&syscrg SYSCRG_CLK_USB_WRAP_480>,
> + <&syscrg SYSCRG_CLK_USB_WRAP_625>,
> + <&syscrg SYSCRG_CLK_USB_WRAP_240>,
> + <&syscrg SYSCRG_CLK_USB_WRAP_60>,
> + <&syscrg SYSCRG_CLK_USB_WRAP_156P25>,
> + <&syscrg SYSCRG_CLK_USB_WRAP_312P5>,
> + <&syscrg SYSCRG_CLK_USB_125M>,
> + <&syscrg_nw SYSCRG_NW_CLK_GPIO_100>,
> + <&syscrg SYSCRG_CLK_PERH_ROOT>, <&syscrg SYSCRG_CLK_MCLK>,
> + <&syscrg SYSCRG_CLK_PERH_ROOT_PREOSC>,
> + <&syscrg SYSCRG_CLK_AHB0>,
> + <&syscrg SYSCRG_CLK_APB_BUS_PER1>,
> + <&syscrg SYSCRG_CLK_APB_BUS_PER2>,
> + <&syscrg SYSCRG_CLK_APB_BUS_PER3>,
> + <&syscrg SYSCRG_CLK_APB_BUS_PER5>,
> + <&syscrg SYSCRG_CLK_VENC_ROOT>,
> + <&syscrg SYSCRG_CLK_SPI_CORE_100>,
> + <&clk_glb_ext_clk>, <&clk_usb3_tap_tck_ext>,
> + <&clk_usb1_tap_tck_ext>, <&clk_usb2_tap_tck_ext>,
> + <&clk_typec_tap_tck_ext>, <&clk_spi_in0_ext>,
> + <&clk_spi_in1_ext>, <&clk_i2stx_bclk_ext>, <&clk_i2stx_lrck_ext>;
> + clock-names = "clk_osc", "sys_clk_axi_400",
> + "sys_clk_vout_root0", "sys_clk_vout_root1",
> + "sys_clk_usb_wrap_480", "sys_clk_usb_wrap_625",
> + "sys_clk_usb_wrap_240", "sys_clk_usb_wrap_60",
> + "sys_clk_usb_wrap_156p25", "sys_clk_usb_wrap_312p5",
> + "sys_clk_usb_125m", "sys_nw_clk_gpio_100",
> + "sys_clk_perh_root", "sys_clk_mclk",
> + "sys_clk_perh_root_preosc", "sys_clk_ahb0",
> + "sys_clk_apb_bus_per1", "sys_clk_apb_bus_per2",
> + "sys_clk_apb_bus_per3", "sys_clk_apb_bus_per5",
> + "sys_clk_venc_root", "sys_clk_spi_core_100",
> + "clk_glb_ext_clk", "clk_usb3_tap_tck_ext",
> + "clk_usb1_tap_tck_ext", "clk_usb2_tap_tck_ext",
> + "clk_typec_tap_tck_ext", "clk_spi_in0_ext",
> + "clk_spi_in1_ext", "clk_i2stx_bclk_ext",
> + "clk_i2stx_lrck_ext";
> + #clock-cells = <1>;
> + #reset-cells = <1>;
> + };
> +
> + syscrg_nw: syscrg_nw@123c0000 {
> + compatible = "starfive,jh8100-syscrg-nw";
> + reg = <0x0 0x123c0000 0x0 0x10000>;
> + clocks = <&clk_osc>, <&syscrg SYSCRG_CLK_APB_BUS>,
> + <&syscrg SYSCRG_CLK_ISP_2X>, <&syscrg SYSCRG_CLK_ISP_AXI>,
> + <&syscrg SYSCRG_CLK_VOUT_ROOT0>, <&syscrg SYSCRG_CLK_VOUT_ROOT1>,
> + <&syscrg SYSCRG_CLK_VOUT_SCAN_ATS>,
> + <&syscrg SYSCRG_CLK_VOUT_DC_CORE>, <&syscrg SYSCRG_CLK_VOUT_AXI>,
> + <&syscrg SYSCRG_CLK_AXI_400>, <&syscrg SYSCRG_CLK_AXI_200>,
> + <&syscrg SYSCRG_CLK_PERH_ROOT_PREOSC>,
> + <&clk_dvp_ext>, <&clk_isp_dphy_tap_tck_ext>,
> + <&clk_glb_ext_clk>, <&clk_i2s_tscko>,
> + <&clk_vout_mipi_dphy_tap_tck_ext>, <&clk_vout_edp_tap_tck_ext>,
> + <&clk_spi_in2_ext>;
> + clock-names = "clk_osc", "sys_clk_apb_bus",
> + "sys_clk_isp_2x", "sys_clk_isp_axi",
> + "sys_clk_vout_root0", "sys_clk_vout_root1",
> + "sys_clk_vout_scan_ats", "sys_clk_vout_dc_core",
> + "sys_clk_vout_axi", "sys_clk_axi_400",
> + "sys_clk_axi_200", "sys_clk_perh_root_preosc", "clk_dvp_ext",
> + "clk_isp_dphy_tap_tck_ext", "clk_glb_ext_clk",
> + "clk_i2s_tscko", "clk_vout_mipi_dphy_tap_tck_ext",
> + "clk_vout_edp_tap_tck_ext", "clk_spi_in2_ext";
> + #clock-cells = <1>;
> + #reset-cells = <1>;
> + };
> +
> + syscrg: syscrg@126d0000 {
> + compatible = "starfive,jh8100-syscrg";
> + reg = <0x0 0x126d0000 0x0 0x10000>;
> + clocks = <&clk_osc>, <&clk_i2srx_bclk_ext>,
> + <&clk_i2srx_lrck_ext>, <&clk_mclk_ext>;
> + clock-names = "clk_osc", "clk_i2srx_bclk_ext",
> + "clk_i2srx_lrck_ext", "clk_mclk_ext";
> + #clock-cells = <1>;
> + #reset-cells = <1>;
> + };
> +
> + syscrg_sw: syscrg_sw@12720000 {
> + compatible = "starfive,jh8100-syscrg-sw";
> + reg = <0x0 0x12720000 0x0 0x10000>;
> + clocks = <&syscrg SYSCRG_CLK_APB_BUS>,
> + <&syscrg SYSCRG_CLK_VDEC_ROOT>,
> + <&syscrg SYSCRG_CLK_FLEXNOC1>;
> + clock-names = "sys_clk_apb_bus",
> + "sys_clk_vdec_root",
> + "sys_clk_flexnoc1";
> + #clock-cells = <1>;
> + #reset-cells = <1>;
> + };
> +
> uart5: serial@127d0000 {
> compatible = "starfive,jh8100-uart", "cdns,uart-r1p8";
> reg = <0x0 0x127d0000 0x0 0x10000>;
> @@ -374,5 +475,19 @@ uart6: serial@127e0000 {
> interrupts = <73>;
> status = "disabled";
> };
> +
> + aoncrg: aoncrg@1f310000 {
> + compatible = "starfive,jh8100-aoncrg";
> + reg = <0x0 0x1f310000 0x0 0x10000>;
> + clocks = <&clk_osc>, <&clk_gmac0_rmii_func>,
> + <&clk_gmac0_rgmii_func>, <&clk_aon125>,
> + <&clk_aon2000>, <&clk_aon200>,
> + <&clk_aon667>, <&clk_rtc>;
> + clock-names = "clk_osc", "clk_gmac0_rmii_func", "clk_gmac0_rgmii_func",
> + "clk_aon125", "clk_aon2000", "clk_aon200",
> + "clk_aon667", "clk_rtc";
> + #clock-cells = <1>;
> + #reset-cells = <1>;
> + };
> };
> };
> --
> 2.34.1
>

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