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Message-ID: <CACPK8Xc1s7Q6b-m3nCVh6mfukv6Pih331=vpnMTQDLO09mHVWQ@mail.gmail.com>
Date: Mon, 28 Sep 2020 06:42:42 +0000
From: Joel Stanley <joel@....id.au>
To: Tomer Maimon <tmaimon77@...il.com>
Cc: Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Avi Fishman <avifishman70@...il.com>,
Tali Perry <tali.perry1@...il.com>,
Patrick Venture <venture@...gle.com>,
Nancy Yuen <yuenn@...gle.com>,
Benjamin Fair <benjaminfair@...gle.com>,
devicetree <devicetree@...r.kernel.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
OpenBMC Maillist <openbmc@...ts.ozlabs.org>
Subject: Re: [PATCH v7 5/5] arm: dts: add new device nodes to NPCM750 device
tree EVB
On Wed, 23 Sep 2020 at 16:48, Tomer Maimon <tmaimon77@...il.com> wrote:
>
> Add the following new device nodes to
> NPCM750 evolution board device tree:
>
> - NPCM7xx Pin controller and GPIO
> - NPCM7xx PWM and FAN.
> - NPCM7xx EHCI USB.
> - NPCM7xx KCS.
> - NPCM Reset.
> - NPCM Peripheral SPI.
> - NPCM FIU SPI.
> - NPCM HWRNG.
> - NPCM I2C.
> - STMicro STMMAC.
>
> Signed-off-by: Tomer Maimon <tmaimon77@...il.com>
> ---
> arch/arm/boot/dts/nuvoton-npcm750-evb.dts | 405 +++++++++++++++++-
> .../boot/dts/nuvoton-npcm750-pincfg-evb.dtsi | 157 +++++++
> 2 files changed, 546 insertions(+), 16 deletions(-)
> create mode 100644 arch/arm/boot/dts/nuvoton-npcm750-pincfg-evb.dtsi
>
> diff --git a/arch/arm/boot/dts/nuvoton-npcm750-evb.dts b/arch/arm/boot/dts/nuvoton-npcm750-evb.dts
> index 15f744f1beea..1623a18ac29b 100644
> --- a/arch/arm/boot/dts/nuvoton-npcm750-evb.dts
> +++ b/arch/arm/boot/dts/nuvoton-npcm750-evb.dts
> @@ -4,36 +4,409 @@
>
> /dts-v1/;
> #include "nuvoton-npcm750.dtsi"
> +#include "dt-bindings/gpio/gpio.h"
> +#include "nuvoton-npcm750-pincfg-evb.dtsi"
>
> / {
> model = "Nuvoton npcm750 Development Board (Device Tree)";
> compatible = "nuvoton,npcm750";
>
> + aliases {
> + ethernet2 = &gmac0;
> + ethernet3 = &gmac1;
> + serial0 = &serial0;
> + serial1 = &serial1;
> + serial2 = &serial2;
> + serial3 = &serial3;
> + i2c0 = &i2c0;
> + i2c1 = &i2c1;
> + i2c2 = &i2c2;
> + i2c3 = &i2c3;
> + i2c4 = &i2c4;
> + i2c5 = &i2c5;
> + i2c6 = &i2c6;
> + i2c7 = &i2c7;
> + i2c8 = &i2c8;
> + i2c9 = &i2c9;
> + i2c10 = &i2c10;
> + i2c11 = &i2c11;
> + i2c12 = &i2c12;
> + i2c13 = &i2c13;
> + i2c14 = &i2c14;
> + i2c15 = &i2c15;
> + spi0 = &spi0;
> + spi1 = &spi1;
> + fiu0 = &fiu0;
> + fiu1 = &fiu3;
> + fiu2 = &fiux;
> + };
> +
> chosen {
> stdout-path = &serial3;
> };
>
> memory {
> - reg = <0 0x40000000>;
> + device_type = "memory";
> + reg = <0x0 0x20000000>;
> };
> -};
>
> -&watchdog1 {
> - status = "okay";
> -};
> + ahb {
> + gmac0: eth@...02000 {
> + phy-mode = "rgmii-id";
> + status = "okay";
> + };
While this will work it is less error prone to refer to the existing
node by it's phandle.
&gmac0 {
phy-mode = "rgmii-id";
status = "okay";
}
>
> -&serial0 {
> - status = "okay";
> -};
> + gmac1: eth@...04000 {
> + phy-mode = "rgmii-id";
> + status = "okay";
> + };
As with gmac0.
>
> -&serial1 {
> - status = "okay";
> -};
> + ehci1: usb@...06000 {
> + status = "okay";
> + };
As above:
&ehci1 {
status = "okay";
}
>
> -&serial2 {
> - status = "okay";
> -};
> + fiu0: spi@...00000 {
&fiu0 {
status = "okay"
spi-nor@1 {
...
And as I read down, the entire device tree needs to be fixed.
> + status = "okay";
> + spi-nor@0 {
> + compatible = "jedec,spi-nor";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + spi-rx-bus-width = <2>;
> + reg = <0>;
> + spi-max-frequency = <5000000>;
> + partitions@...00000 {
> + compatible = "fixed-partitions";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + bbuboot1@0 {
> + label = "bb-uboot-1";
> + reg = <0x0000000 0x80000>;
> + read-only;
> + };
> + bbuboot2@...00 {
> + label = "bb-uboot-2";
> + reg = <0x0080000 0x80000>;
> + read-only;
> + };
> + envparam@...000 {
> + label = "env-param";
> + reg = <0x0100000 0x40000>;
> + read-only;
> + };
> + spare@...000 {
> + label = "spare";
> + reg = <0x0140000 0xC0000>;
> + };
> + kernel@...000 {
> + label = "kernel";
> + reg = <0x0200000 0x400000>;
> + };
> + rootfs@...000 {
> + label = "rootfs";
> + reg = <0x0600000 0x700000>;
> + };
> + spare1@...000 {
> + label = "spare1";
> + reg = <0x0D00000 0x200000>;
> + };
> + spare2@...0000 {
> + label = "spare2";
> + reg = <0x0F00000 0x200000>;
> + };
> + spare3@...0000 {
> + label = "spare3";
> + reg = <0x1100000 0x200000>;
> + };
> + spare4@...0000 {
> + label = "spare4";
> + reg = <0x1300000 0x0>;
> + };
> + };
> + };
> + };
> +
> + fiu3: spi@...00000 {
> + pinctrl-0 = <&spi3_pins>, <&spi3quad_pins>;
> + status = "okay";
> + spi-nor@0 {
> + compatible = "jedec,spi-nor";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + spi-rx-bus-width = <2>;
> + reg = <0>;
> + spi-max-frequency = <5000000>;
> + partitions@...00000 {
> + compatible = "fixed-partitions";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + system1@0 {
> + label = "spi3-system1";
> + reg = <0x0 0x0>;
> + };
> + };
> + };
> + };
> +
> + fiux: spi@...01000 {
> + spix-mode;
> + };
> +
> + apb {
> +
> + watchdog1: watchdog@...C {
> + status = "okay";
> + };
> +
> + rng: rng@...0 {
> + status = "okay";
> + };
> +
> + serial0: serial@...0 {
> + status = "okay";
> + };
> +
> + serial1: serial@...0 {
> + status = "okay";
> + };
> +
> + serial2: serial@...0 {
> + status = "okay";
> + };
> +
> + serial3: serial@...0 {
> + status = "okay";
> + };
> +
> + adc: adc@...0 {
> + status = "okay";
> + };
> +
> + otp:otp@...000 {
> + status = "okay";
> + };
> +
> + lpc_kcs: lpc_kcs@...0 {
> + kcs1: kcs1@0 {
> + status = "okay";
> + };
>
> -&serial3 {
> - status = "okay";
> + kcs2: kcs2@0 {
> + status = "okay";
> + };
> +
> + kcs3: kcs3@0 {
> + status = "okay";
> + };
> + };
> +
> + /* lm75 on SVB */
> + i2c0: i2c@...00 {
> + clock-frequency = <100000>;
> + status = "okay";
> + lm75@48 {
> + compatible = "lm75";
> + reg = <0x48>;
> + status = "okay";
> + };
> + };
> +
> + /* lm75 on EB */
> + i2c1: i2c@...00 {
> + clock-frequency = <100000>;
> + status = "okay";
> + lm75@48 {
> + compatible = "lm75";
> + reg = <0x48>;
> + status = "okay";
> + };
> + };
> +
> + /* tmp100 on EB */
> + i2c2: i2c@...00 {
> + clock-frequency = <100000>;
> + status = "okay";
> + tmp100@48 {
> + compatible = "tmp100";
> + reg = <0x48>;
> + status = "okay";
> + };
> + };
> +
> + i2c3: i2c@...00 {
> + clock-frequency = <100000>;
> + status = "okay";
> + };
> +
> + i2c5: i2c@...00 {
> + clock-frequency = <100000>;
> + status = "okay";
> + };
> +
> + /* tmp100 on SVB */
> + i2c6: i2c@...00 {
> + clock-frequency = <100000>;
> + status = "okay";
> + tmp100@48 {
> + compatible = "tmp100";
> + reg = <0x48>;
> + status = "okay";
> + };
> + };
> +
> + i2c7: i2c@...00 {
> + clock-frequency = <100000>;
> + status = "okay";
> + };
> +
> + i2c8: i2c@...00 {
> + clock-frequency = <100000>;
> + status = "okay";
> + };
> +
> + i2c9: i2c@...00 {
> + clock-frequency = <100000>;
> + status = "okay";
> + };
> +
> + i2c10: i2c@...00 {
> + clock-frequency = <100000>;
> + status = "okay";
> + };
> +
> + i2c11: i2c@...00 {
> + clock-frequency = <100000>;
> + status = "okay";
> + };
> +
> + i2c14: i2c@...00 {
> + clock-frequency = <100000>;
> + status = "okay";
> + };
> +
> + pwm_fan:pwm-fan-controller@...000 {
> + status = "okay";
> + fan@0 {
> + reg = <0x00>;
> + fan-tach-ch = /bits/ 8 <0x00 0x01>;
> + cooling-levels = <127 255>;
> + };
> + fan@1 {
> + reg = <0x01>;
> + fan-tach-ch = /bits/ 8 <0x02 0x03>;
> + cooling-levels = /bits/ 8 <127 255>;
> + };
> + fan@2 {
> + reg = <0x02>;
> + fan-tach-ch = /bits/ 8 <0x04 0x05>;
> + cooling-levels = /bits/ 8 <127 255>;
> + };
> + fan@3 {
> + reg = <0x03>;
> + fan-tach-ch = /bits/ 8 <0x06 0x07>;
> + cooling-levels = /bits/ 8 <127 255>;
> + };
> + fan@4 {
> + reg = <0x04>;
> + fan-tach-ch = /bits/ 8 <0x08 0x09>;
> + cooling-levels = /bits/ 8 <127 255>;
> + };
> + fan@5 {
> + reg = <0x05>;
> + fan-tach-ch = /bits/ 8 <0x0A 0x0B>;
> + cooling-levels = /bits/ 8 <127 255>;
> + };
> + fan@6 {
> + reg = <0x06>;
> + fan-tach-ch = /bits/ 8 <0x0C 0x0D>;
> + cooling-levels = /bits/ 8 <127 255>;
> + };
> + fan@7 {
> + reg = <0x07>;
> + fan-tach-ch = /bits/ 8 <0x0E 0x0F>;
> + cooling-levels = /bits/ 8 <127 255>;
> + };
> + };
> +
> + spi0: spi@...000 {
> + cs-gpios = <&gpio6 11 GPIO_ACTIVE_LOW>;
> + status = "okay";
> + Flash@0 {
> + compatible = "winbond,w25q128",
> + "jedec,spi-nor";
> + reg = <0x0>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + spi-max-frequency = <5000000>;
> + partition@0 {
> + label = "spi0_spare1";
> + reg = <0x0000000 0x800000>;
> + };
> + partition@1 {
> + label = "spi0_spare2";
> + reg = <0x800000 0x0>;
> + };
> + };
> + };
> +
> + spi1: spi@...000 {
> + cs-gpios = <&gpio0 20 GPIO_ACTIVE_LOW>;
> + status = "okay";
> + Flash@0 {
> + compatible = "winbond,w25q128fw",
> + "jedec,spi-nor";
> + reg = <0x0>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + spi-max-frequency = <5000000>;
> + partition@0 {
> + label = "spi1_spare1";
> + reg = <0x0000000 0x800000>;
> + };
> + partition@1 {
> + label = "spi1_spare2";
> + reg = <0x800000 0x0>;
> + };
> + };
> + };
> + };
> + };
> +
> + pinctrl: pinctrl@...00000 {
&pinctrl {
> + pinctrl-names = "default";
> + pinctrl-0 = < &iox1_pins
> + &pin8_input
> + &pin9_output_high
> + &pin10_input
> + &pin11_output_high
> + &pin16_input
> + &pin24_output_high
> + &pin25_output_low
> + &pin32_output_high
> + &jtag2_pins
> + &pin61_output_high
> + &pin62_output_high
> + &pin63_output_high
> + &lpc_pins
> + &pin160_input
> + &pin162_input
> + &pin168_input
> + &pin169_input
> + &pin170_input
> + &pin187_output_high
> + &pin190_input
> + &pin191_output_high
> + &pin192_output_high
> + &pin197_output_low
> + &ddc_pins
> + &pin218_input
> + &pin219_output_low
> + &pin220_output_low
> + &pin221_output_high
> + &pin222_input
> + &pin223_output_low
> + &spix_pins
> + &pin228_output_low
> + &pin231_output_high
> + &pin255_input>;
> + };
> };
> diff --git a/arch/arm/boot/dts/nuvoton-npcm750-pincfg-evb.dtsi b/arch/arm/boot/dts/nuvoton-npcm750-pincfg-evb.dtsi
> new file mode 100644
> index 000000000000..edb4190826e6
> --- /dev/null
> +++ b/arch/arm/boot/dts/nuvoton-npcm750-pincfg-evb.dtsi
> @@ -0,0 +1,157 @@
> +// SPDX-License-Identifier: GPL-2.0
> +// Copyright (c) 2018 Nuvoton Technology tomer.maimon@...oton.com
Drop your email address; it's in the git history if someone needs to look it up.
> +
> +/ {
> + pinctrl: pinctrl@...00000 {
> + pin8_input: pin8-input {
> + pins = "GPIO8/LKGPO1";
> + bias-disable;
> + input-enable;
> + };
> + pin9_output_high: pin9-output-high {
> + pins = "GPIO9/LKGPO2";
> + bias-disable;
> + output-high;
> + };
> + pin10_input: pin10-input {
> + pins = "GPIO10/IOXHLD";
> + bias-disable;
> + input-enable;
> + };
> + pin11_output_high: pin11-output-high {
> + pins = "GPIO11/IOXHCK";
> + bias-disable;
> + output-high;
> + };
> + pin16_input: pin16-input {
> + pins = "GPIO16/LKGPO0";
> + bias-disable;
> + input-enable;
> + };
> + pin24_output_high: pin24-output-high {
> + pins = "GPIO24/IOXHDO";
> + bias-disable;
> + output-high;
> + };
> + pin25_output_low: pin25-output-low {
> + pins = "GPIO25/IOXHDI";
> + bias-disable;
> + output-low;
> + };
> + pin32_output_high: pin32-output-high {
> + pins = "GPIO32/nSPI0CS1";
> + bias-disable;
> + output-high;
> + };
> + pin61_output_high: pin61-output-high {
> + pins = "GPO61/nDTR1_BOUT1/STRAP6";
> + bias-disable;
> + output-high;
> + };
> + pin62_output_high: pin62-output-high {
> + pins = "GPO62/nRTST1/STRAP5";
> + bias-disable;
> + output-high;
> + };
> + pin63_output_high: pin63-output-high {
> + pins = "GPO63/TXD1/STRAP4";
> + bias-disable;
> + output-high;
> + };
> + pin160_input: pin160-input {
> + pins = "GPIO160/CLKOUT/RNGOSCOUT";
> + bias-disable;
> + input-enable;
> + };
> + pin162_input: pin162-input {
> + pins = "GPIO162/SERIRQ";
> + bias-disable;
> + input-enable;
> + };
> + pin168_input: pin168-input {
> + pins = "GPIO168/nCLKRUN/nESPIALERT";
> + bias-disable;
> + input-enable;
> + };
> + pin169_input: pin169-input {
> + pins = "GPIO169/nSCIPME";
> + bias-disable;
> + input-enable;
> + };
> + pin170_input: pin170-input {
> + pins = "GPIO170/nSMI";
> + bias-disable;
> + input-enable;
> + };
> + pin187_output_high: pin187-output-high {
> + pins = "GPIO187/nSPI3CS1";
> + bias-disable;
> + output-high;
> + };
> + pin190_input: pin190-input {
> + pins = "GPIO190/nPRD_SMI";
> + bias-disable;
> + input-enable;
> + };
> + pin191_output_high: pin191-output-high {
> + pins = "GPIO191";
> + bias-disable;
> + output-high;
> + };
> + pin192_output_high: pin192-output-high {
> + pins = "GPIO192";
> + bias-disable;
> + output-high;
> + };
> + pin197_output_low: pin197-output-low {
> + pins = "GPIO197/SMB0DEN";
> + bias-disable;
> + output-low;
> + };
> + pin218_input: pin218-input {
> + pins = "GPIO218/nWDO1";
> + bias-disable;
> + input-enable;
> + };
> + pin219_output_low: pin219-output-low {
> + pins = "GPIO219/nWDO2";
> + bias-disable;
> + output-low;
> + };
> + pin220_output_low: pin220-output-low {
> + pins = "GPIO220/SMB12SCL";
> + bias-disable;
> + output-low;
> + };
> + pin221_output_high: pin221-output-high {
> + pins = "GPIO221/SMB12SDA";
> + bias-disable;
> + output-high;
> + };
> + pin222_input: pin222-input {
> + pins = "GPIO222/SMB13SCL";
> + bias-disable;
> + input-enable;
> + };
> + pin223_output_low: pin223-output-low {
> + pins = "GPIO223/SMB13SDA";
> + bias-disable;
> + output-low;
> + };
> + pin228_output_low: pin228-output-low {
> + pins = "GPIO228/nSPIXCS1";
> + bias-disable;
> + output-low;
> + };
> + pin231_output_high: pin231-output-high {
> + pins = "GPIO230/SPIXD3";
> + bias-disable;
> + output-high;
> + };
> + pin255_input: pin255-input {
> + pins = "GPI255/DACOSEL";
> + bias-disable;
> + input-enable;
> + };
> + };
> +};
> --
> 2.22.0
>
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