RE: [PATCH] ARM: dts: aspeed: asus: Add ASUS X4TF BMC

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Hi, Krzysztof,
Please see my response below.

Thanks a log.

Best Regards
Kelly
-----Original Message-----
From: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Sent: Tuesday, January 30, 2024 6:39 PM
To: Kelly Hung <ppighouse@xxxxxxxxx>; robh+dt@xxxxxxxxxx
Cc: krzysztof.kozlowski+dt@xxxxxxxxxx; conor+dt@xxxxxxxxxx; joel@xxxxxxxxx; andrew@xxxxxxxxxxxxxxxxxxxx; devicetree@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux-aspeed@xxxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; Kelly Hung(洪嘉莉) <Kelly_Hung@xxxxxxxx>
Subject: Re: [PATCH] ARM: dts: aspeed: asus: Add ASUS X4TF BMC

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On 30/01/2024 09:56, Kelly Hung wrote:
> From: kelly1732000 <Kelly_Hung@xxxxxxxx>
>
> This initial device-tree provides the necessary configuration for
> basic BMC functionality and work on ASUS X4TF production.
>
> Signed-off-by: kelly1732000 <Kelly_Hung@xxxxxxxx>
> ---
>  .../boot/dts/aspeed/aspeed-bmc-asus-x4tf.dts  | 828
> ++++++++++++++++++
>  1 file changed, 828 insertions(+)
>  create mode 100644 arch/arm/boot/dts/aspeed/aspeed-bmc-asus-x4tf.dts

It's impossible to test this file. You miss Makefile.

Kelly: I've add aspeed-bmc-asus-x4tf.dtb in Makefle.

>
> diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-asus-x4tf.dts
> b/arch/arm/boot/dts/aspeed/aspeed-bmc-asus-x4tf.dts
> new file mode 100644
> index 000000000000..723bbb33137f
> --- /dev/null
> +++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-asus-x4tf.dts
> @@ -0,0 +1,828 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later // Copyright 2023 ASUS
> +Corp.
> +/dts-v1/;
> +
> +#include "aspeed-g6.dtsi"
> +#include <dt-bindings/gpio/aspeed-gpio.h> #include
> +<dt-bindings/i2c/i2c.h>
> +
> +
> +/ {
> +     model = "ASUS-X4TF";
> +     compatible = "asus,x4tf", "aspeed,ast2600";
> +
> +     chosen {
> +             stdout-path = &uart5;
> +             bootargs = "console=ttyS4,115200n8 earlycon";

earlycon is a debugging feature, not mainline. Also, move console to stdout-path, so entire bootargs can be dropped.

Kelly: I've moved "bootargs" into "stdout-path" and resend my patch.

> +     };
> +
> +     memory@80000000 {
> +             device_type = "memory";
> +             reg = <0x80000000 0x40000000>;
> +     };
> +
> +     reserved-memory {
> +             #address-cells = <1>;
> +             #size-cells = <1>;
> +             ranges;
> +
> +             gfx_memory: framebuffer {
> +                     size = <0x01000000>;
> +                     alignment = <0x01000000>;
> +                     compatible = "shared-dma-pool";
> +                     reusable;
> +             };
> +
> +             video_engine_memory: video {
> +                     size = <0x04000000>;
> +                     alignment = <0x01000000>;
> +                     compatible = "shared-dma-pool";
> +                     reusable;
> +             };
> +
> +             rvas_memory: rvas {
> +                     size = <0x04000000>;
> +                     alignment = <0x01000000>;
> +                     compatible = "shared-dma-pool";
> +                     reusable;
> +             };
> +
> +             bmc_dev_memory: bmc_dev_memory {

No underscores in node names. This applies everywhere.

Kelly: Yes, thanks for reminding, I've removed it and resent my patch.


> +                     size = <0x00100000>;
> +                     alignment = <0x00100000>;
> +                     compatible = "shared-dma-pool";
> +                     no-map;
> +             };
> +
> +             pci_msi_memory: pci_msi_memory {
> +                     no-map;
> +                     reg = <0x9e770000 0x100>;
> +                     compatible = "shared-dma-pool";
> +             };
> +             /* 1GB memory */
> +             vga_memory: region@bf000000 {
> +                     no-map;
> +                     compatible = "shared-dma-pool";
> +                     reg = <0xbf000000 0x01000000>;  /* 16M */
> +             };
> +             ssp_memory: ssp_memory {
> +                     size = <0x02000000>;
> +                     alignment = <0x01000000>;
> +                     compatible = "shared-dma-pool";
> +                     no-map;
> +             };
> +     };
> +
> +     vcc_sdhci0: regulator-vcc-sdhci0 {
> +             compatible = "regulator-fixed";
> +             status = "disabled";

Why? It makes it entirely pointless.
Kelly: I've removed it and loaded into our X4TF platform and it boot into BMC console. I have resent my patch.

> +             regulator-name = "SDHCI0 Vcc";
> +             regulator-min-microvolt = <3300000>;
> +             regulator-max-microvolt = <3300000>;
> +             gpios = <&gpio0 ASPEED_GPIO(V, 0) GPIO_ACTIVE_HIGH>;
> +             enable-active-high;
> +     };
> +
> +     vccq_sdhci0: regulator-vccq-sdhci0 {
> +             compatible = "regulator-gpio";
> +             status = "disabled";

Pointless node.
Kelly: I've removed it and loaded into our X4TF platform and it boot into BMC console. I have resent my patch.

> +             regulator-name = "SDHCI0 VccQ";
> +             regulator-min-microvolt = <1800000>;
> +             regulator-max-microvolt = <3300000>;
> +             gpios = <&gpio0 ASPEED_GPIO(V, 1) GPIO_ACTIVE_HIGH>;
> +             gpios-states = <1>;
> +             states = <3300000 1>,
> +                      <1800000 0>;
> +     };
> +
> +     vcc_sdhci1: regulator-vcc-sdhci1 {
> +             compatible = "regulator-fixed";
> +             status = "disabled";

Pointless node.
Kelly: I've removed it and loaded into our X4TF platform and it boot into BMC console. I have resent my patch.

> +             regulator-name = "SDHCI1 Vcc";
> +             regulator-min-microvolt = <3300000>;
> +             regulator-max-microvolt = <3300000>;
> +             gpios = <&gpio0 ASPEED_GPIO(V, 2) GPIO_ACTIVE_HIGH>;
> +             enable-active-high;
> +     };
> +
> +     vccq_sdhci1: regulator-vccq-sdhci1 {
> +             compatible = "regulator-gpio";
> +             status = "disabled";

Pointless node.
Kelly: I've removed it and loaded into our X4TF platform and it boot into BMC console. I have resent my patch.

> +             regulator-name = "SDHCI1 VccQ";
> +             regulator-min-microvolt = <1800000>;
> +             regulator-max-microvolt = <3300000>;
> +             gpios = <&gpio0 ASPEED_GPIO(V, 3) GPIO_ACTIVE_HIGH>;
> +             gpios-states = <1>;
> +             states = <3300000 1>,
> +                      <1800000 0>;
> +     };

Missing blank line.
Kelly: I've review our dts and add blank line or remove redundant blank lines.


> +     iio-hwmon {
> +             compatible = "iio-hwmon";
> +             io-channels = <&adc0 0>, <&adc0 1>, <&adc0 2>, <&adc0 3>,
> +                             <&adc0 4>, <&adc0 5>, <&adc0 6>, <&adc0 7>,
> +                             <&adc1 0>, <&adc1 1>, <&adc1 2>, <&adc1 3>,
> +                             <&adc1 4>, <&adc1 5>, <&adc1 6>, <&adc1 7>;
> +     };
> +> +  video-engine@1e700000 {

Wrong placement. Also tools would tell you that.

It does not look like you tested the DTS against bindings. Please run `make dtbs_check W=1` (see Documentation/devicetree/bindings/writing-schema.rst or https://www.linaro.org/blog/tips-and-tricks-for-validating-devicetree-sources-with-the-devicetree-schema/
for instructions).

Kelly: I've checked our dts, removed unnecessary parts and run the DTS check script.

> +             compatible = "aspeed,ast2600-video-engine";
> +             reg = <0x1e700000 0x20000>;
> +             clocks = <&syscon ASPEED_CLK_GATE_VCLK>, <&syscon ASPEED_CLK_GATE_ECLK>;
> +             clock-names = "vclk", "eclk";
> +             interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
> +             memory-region = <&video_engine_memory>;
> +             //resets = <&syscon ASPEED_RESET_VIDEO>;

Dead code.

Kelly: I have removed this part and resent the patch.

> +     };
> +
> +     leds {
> +             compatible = "gpio-leds";
> +
> +             heartbeat {

It does not look like you tested the DTS against bindings. Please run `make dtbs_check W=1` (see Documentation/devicetree/bindings/writing-schema.rst or https://www.linaro.org/blog/tips-and-tricks-for-validating-devicetree-sources-with-the-devicetree-schema/
for instructions).

Kelly: I added led- for all LED configurations. Heartbeat will be led-heartbeat.

> +                     gpios = <&gpio0 ASPEED_GPIO(P, 7) GPIO_ACTIVE_LOW>;
> +                     linux,default-trigger = "heartbeat";
> +             };
> +             uid_led {

It does not look like you tested the DTS against bindings. Please run `make dtbs_check W=1` (see Documentation/devicetree/bindings/writing-schema.rst or https://www.linaro.org/blog/tips-and-tricks-for-validating-devicetree-sources-with-the-devicetree-schema/
for instructions).

Kelly: I added led- for all LED configurations.

> +                     gpios = <&gpio0 ASPEED_GPIO(P, 1) (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN)>;
> +                     default-state = "off";
> +             };

Missing blank line, everywhere.

Kelly: I've review our dts and add blank line or remove redundant blank lines.

> +             status_Y {
> +                     gpios = <&gpio1 ASPEED_GPIO(B, 1) GPIO_ACTIVE_LOW>;
> +                     default-state = "off";
> +             };
> +             sys_boot_status {
> +                     gpios = <&gpio1 ASPEED_GPIO(B, 0) GPIO_ACTIVE_LOW>;
> +                     default-state = "off";
> +             };
> +     };
> +     spigpio {

It does not look like you tested the DTS against bindings. Please run `make dtbs_check W=1` (see Documentation/devicetree/bindings/writing-schema.rst or https://www.linaro.org/blog/tips-and-tricks-for-validating-devicetree-sources-with-the-devicetree-schema/
for instructions).

> +             status = "okay";

Why?

Kelly: I've removed spigpio and tested on our X4TF platform and it boots to the BMC console. I've resent our new patch.

> +             compatible = "spi-gpio";
> +             #address-cells = <1>;
> +             #size-cells = <0>;
> +
> +             sck-gpios = <&gpio0 ASPEED_GPIO(Z, 3) GPIO_ACTIVE_HIGH>;
> +             mosi-gpios = <&gpio0 ASPEED_GPIO(Z, 4) GPIO_ACTIVE_HIGH>;
> +             miso-gpios = <&gpio0 ASPEED_GPIO(Z, 5) GPIO_ACTIVE_HIGH>;
> +             num-chipselects = <1>;
> +             cs-gpios = <&gpio0 ASPEED_GPIO(Z, 0) GPIO_ACTIVE_HIGH>;
> +     };
> +

Redundant blank line.

Kelly: I've review our dts and add blank line or remove redundant blank lines.

> +};
> +
> +&adc0 {
> +     vref = <2500>;
> +     status = "okay";
> +
> +     pinctrl-names = "default";
> +     pinctrl-0 = <&pinctrl_adc0_default &pinctrl_adc1_default
> +             &pinctrl_adc2_default &pinctrl_adc3_default
> +             &pinctrl_adc4_default &pinctrl_adc5_default
> +             &pinctrl_adc6_default &pinctrl_adc7_default>; };
> +
> +&adc1 {
> +     vref = <2500>;
> +     status = "okay";
> +
> +     pinctrl-names = "default";
> +     pinctrl-0 = <&pinctrl_adc8_default &pinctrl_adc9_default
> +             &pinctrl_adc10_default &pinctrl_adc11_default
> +             &pinctrl_adc12_default &pinctrl_adc13_default
> +             &pinctrl_adc14_default &pinctrl_adc15_default>; };
> +
> +&peci0 {
> +     status = "okay";
> +};
> +
> +&lpc_snoop {
> +     snoop-ports = <0x80>;
> +     status = "okay";
> +};
> +
> +

Redundant blank line. Clean this code before sending upstream from such trivialities.

Kelly: I've review our dts and add blank line or remove redundant blank lines.

> +&mdio0 {
> +     status = "disabled";
> +};
> +
> +
> +&mdio1 {
> +     status = "disabled";
> +};
> +
> +&mdio2 {
> +     status = "okay";
> +
> +     ethphy2: ethernet-phy@0 {
> +             compatible = "ethernet-phy-ieee802.3-c22";
> +             reg = <0>;
> +     };
> +};
> +
> +&mdio3 {
> +     status = "okay";
> +
> +     ethphy3: ethernet-phy@0 {
> +             compatible = "ethernet-phy-ieee802.3-c22";
> +             reg = <0>;
> +     };
> +};
> +
> +&mac0 {
> +     status = "disabled";
> +};
> +
> +&mac1 {
> +     status = "disabled";
> +};
> +
> +//for X4TF
> +&mac2 {
> +     status = "okay";
> +     phy-mode = "rmii";
> +     #phy-handle = <&ethphy2>;
> +     use-ncsi;
> +     pinctrl-names = "default";
> +     pinctrl-0 = <&pinctrl_rmii3_default>; };
> +
> +

Ditto
Kelly: I've review our dts and add blank line or remove redundant blank lines.

> +&mac3 {
> +     status = "okay";
> +     phy-mode = "rmii";
> +     #phy-handle = <&ethphy3>;
> +     use-ncsi;
> +     pinctrl-names = "default";
> +     pinctrl-0 = <&pinctrl_rmii4_default>; };
> +
> +

Ditto
Kelly: I've review our dts and add blank line or remove redundant blank lines.

> +&syscon {
> +     uart-clock-high-speed;

That's a syscon property?

It does not look like you tested the DTS against bindings. Please run `make dtbs_check W=1` (see Documentation/devicetree/bindings/writing-schema.rst or https://www.linaro.org/blog/tips-and-tricks-for-validating-devicetree-sources-with-the-devicetree-schema/
for instructions).

Kelly: I've removed syscon and tested on our X4TF platform and it boots to the BMC console. I've resent our new patch.

> +     status = "okay";
> +};
> +
> +&rtc {
> +     status = "disabled";
> +};
> +
> +&fmc {
> +     status = "okay";
> +     flash@0 {
> +             status = "okay";

Drop. Everywhere where it is not needed.

Kelly: I've adjusted fmc config and resent the patch.

> +             m25p,fast-read;
> +             label = "bmc-spi";
> +             spi-max-frequency = <50000000>;
> +             spi-bus-width = <1>;
> +             partitions {
> +                     compatible = "fixed-partitions";
> +                     #address-cells = <1>;
> +                     #size-cells = <1>;
> +                     bmc@0 {
> +                             label = "bmc";
> +                             reg = <0x0 0x4000000>;
> +                     };
> +                     u-boot@0 {
> +                             label = "u-boot";
> +                             reg = <0x0 0x200000>;
> +                     };
> +                     u-boot-env@1f0000 {
> +                             label = "u-boot-env";
> +                             reg = <0x1f0000 0x10000>;
> +                     };
> +                     kernel@200000 {
> +                             label = "kernel";
> +                             reg = <0x200000 0xc00000>;
> +                     };
> +                     rofs@a00000 {
> +                             label = "rofs";
> +                             reg = <0xa00000 0x2a00000>;
> +                     };
> +                     rwfs@2a00000 {
> +                             label = "rwfs";
> +                             reg = <0x2a00000 0x43f0000>;
> +                     };
> +             };
> +     };
> +};
> +
> +&spi1 {
> +     status = "okay";
> +     pinctrl-names = "default";
> +     pinctrl-0 = <&pinctrl_spi1_default>;
> +
> +     flash@0 {
> +             status = "okay";
> +             w25q256,fast-read;
> +             label = "bios-spi";
> +             spi-max-frequency = <50000000>;
> +             partitions {
> +                     compatible = "fixed-partitions";
> +                     #address-cells = <1>;
> +                     #size-cells = <1>;
> +                     biosfullimg@0 {
> +                             reg = <0x0 0x2000000>; //  32768 *1024 = 0x2000000, 32 MB
> +                             label = "biosfullimg";
> +                     };
> +             };
> +     };
> +};
> +
> +&i2c0 {
> +     status = "okay";
> +};
> +
> +&i2c1 {
> +     status = "okay";
> +};
> +
> +&i2c2 {
> +     status = "okay";
> +};
> +
> +&i2c3 {
> +     status = "okay";
> +};
> +
> +&i2c4 {
> +     status = "okay";
> +     tmp75@48 {

Node names should be generic. See also an explanation and list of examples (not exhaustive) in DT specification:
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation



> +             compatible = "ti,tmp75";
> +             reg = <0x48>;
> +     };
> +     tmp75@49 {

Node names should be generic. See also an explanation and list of examples (not exhaustive) in DT specification:
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation

I am going to skip the rest. Please fix all the trivialities and test your patches with tools.

Kelly: I have renamed tmp75 as temperature-sensor.
I've checked our dts, removed unnecessary parts and run the DTS check script.

Best regards,
Krzysztof


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