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Date: Thu, 17 May 2018 13:39:11 +0200
From: Stefan Agner <stefan@...er.ch>
To: Krzysztof Kozlowski <krzk@...nel.org>
Cc: Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Thierry Reding <thierry.reding@...il.com>,
Jonathan Hunter <jonathanh@...dia.com>,
devicetree@...r.kernel.org, linux-tegra@...r.kernel.org,
linux-kernel@...r.kernel.org,
Marcel Ziswiler <marcel.ziswiler@...adex.com>,
Lucas Stach <dev@...xeye.de>
Subject: Re: [PATCH v5 1/3] ARM: dts: tegra: Remove skeleton.dtsi and fix DTC
warnings for /memory
On 17.05.2018 09:45, Krzysztof Kozlowski wrote:
> Remove the usage of skeleton.dtsi and add necessary properties to /memory
> node to fix the DTC warnings:
>
> arch/arm/boot/dts/tegra20-harmony.dtb: Warning (unit_address_vs_reg):
> /memory: node has a reg or ranges property, but no unit name
>
> The DTB after the change is the same as before except adding
> unit-address to /memory node.
>
> Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
>
> ---
>
> Changes since v4:
> 1. None
> ---
> arch/arm/boot/dts/tegra114-dalmore.dts | 3 ++-
> arch/arm/boot/dts/tegra114-roth.dts | 3 ++-
> arch/arm/boot/dts/tegra114-tn7.dts | 3 ++-
> arch/arm/boot/dts/tegra114.dtsi | 4 ++--
> arch/arm/boot/dts/tegra124-apalis-v1.2.dtsi | 3 ++-
> arch/arm/boot/dts/tegra124-apalis.dtsi | 3 ++-
> arch/arm/boot/dts/tegra124-jetson-tk1.dts | 3 ++-
> arch/arm/boot/dts/tegra124-nyan.dtsi | 3 ++-
> arch/arm/boot/dts/tegra124-venice2.dts | 3 ++-
> arch/arm/boot/dts/tegra124.dtsi | 2 --
> arch/arm/boot/dts/tegra20-colibri-512.dtsi | 3 ++-
> arch/arm/boot/dts/tegra20-harmony.dts | 3 ++-
> arch/arm/boot/dts/tegra20-paz00.dts | 3 ++-
> arch/arm/boot/dts/tegra20-seaboard.dts | 3 ++-
> arch/arm/boot/dts/tegra20-tamonten.dtsi | 3 ++-
> arch/arm/boot/dts/tegra20-trimslice.dts | 3 ++-
> arch/arm/boot/dts/tegra20-ventana.dts | 3 ++-
> arch/arm/boot/dts/tegra20.dtsi | 7 +++++--
> arch/arm/boot/dts/tegra30-apalis.dtsi | 5 +++++
> arch/arm/boot/dts/tegra30-beaver.dts | 3 ++-
> arch/arm/boot/dts/tegra30-cardhu.dtsi | 3 ++-
> arch/arm/boot/dts/tegra30-colibri.dtsi | 3 ++-
> arch/arm/boot/dts/tegra30.dtsi | 7 +++++--
> 23 files changed, 53 insertions(+), 26 deletions(-)
>
> diff --git a/arch/arm/boot/dts/tegra114-dalmore.dts
> b/arch/arm/boot/dts/tegra114-dalmore.dts
> index eafff16765b4..5cdcedfc19cb 100644
> --- a/arch/arm/boot/dts/tegra114-dalmore.dts
> +++ b/arch/arm/boot/dts/tegra114-dalmore.dts
> @@ -23,7 +23,8 @@
> stdout-path = "serial0:115200n8";
> };
>
> - memory {
> + memory@...00000 {
> + device_type = "memory";
> reg = <0x80000000 0x40000000>;
> };
>
> diff --git a/arch/arm/boot/dts/tegra114-roth.dts
> b/arch/arm/boot/dts/tegra114-roth.dts
> index 7ed7370ee67a..b4f329a07c60 100644
> --- a/arch/arm/boot/dts/tegra114-roth.dts
> +++ b/arch/arm/boot/dts/tegra114-roth.dts
> @@ -28,7 +28,8 @@
> };
> };
>
> - memory {
> + memory@...00000 {
> + device_type = "memory";
> /* memory >= 0x79600000 is reserved for firmware usage */
> reg = <0x80000000 0x79600000>;
> };
> diff --git a/arch/arm/boot/dts/tegra114-tn7.dts
> b/arch/arm/boot/dts/tegra114-tn7.dts
> index 7fc4a8b31e45..12092d344ce8 100644
> --- a/arch/arm/boot/dts/tegra114-tn7.dts
> +++ b/arch/arm/boot/dts/tegra114-tn7.dts
> @@ -28,7 +28,8 @@
> };
> };
>
> - memory {
> + memory@...00000 {
> + device_type = "memory";
> /* memory >= 0x37e00000 is reserved for firmware usage */
> reg = <0x80000000 0x37e00000>;
> };
> diff --git a/arch/arm/boot/dts/tegra114.dtsi b/arch/arm/boot/dts/tegra114.dtsi
> index 0e4a13295d8a..b917784d3f97 100644
> --- a/arch/arm/boot/dts/tegra114.dtsi
> +++ b/arch/arm/boot/dts/tegra114.dtsi
> @@ -5,11 +5,11 @@
> #include <dt-bindings/pinctrl/pinctrl-tegra.h>
> #include <dt-bindings/interrupt-controller/arm-gic.h>
>
> -#include "skeleton.dtsi"
> -
> / {
> compatible = "nvidia,tegra114";
> interrupt-parent = <&lic>;
> + #address-cells = <1>;
> + #size-cells = <1>;
>
> host1x@...00000 {
> compatible = "nvidia,tegra114-host1x", "simple-bus";
> diff --git a/arch/arm/boot/dts/tegra124-apalis-v1.2.dtsi
> b/arch/arm/boot/dts/tegra124-apalis-v1.2.dtsi
> index bb67edb016c5..80b52c612891 100644
> --- a/arch/arm/boot/dts/tegra124-apalis-v1.2.dtsi
> +++ b/arch/arm/boot/dts/tegra124-apalis-v1.2.dtsi
> @@ -15,7 +15,8 @@
> compatible = "toradex,apalis-tk1-v1.2", "toradex,apalis-tk1",
> "nvidia,tegra124";
>
> - memory {
> + memory@0 {
> + device_type = "memory";
> reg = <0x0 0x80000000 0x0 0x80000000>;
> };
>
> diff --git a/arch/arm/boot/dts/tegra124-apalis.dtsi
> b/arch/arm/boot/dts/tegra124-apalis.dtsi
> index 65a2161b9b8e..3ca7601cafe9 100644
> --- a/arch/arm/boot/dts/tegra124-apalis.dtsi
> +++ b/arch/arm/boot/dts/tegra124-apalis.dtsi
> @@ -50,7 +50,8 @@
> model = "Toradex Apalis TK1";
> compatible = "toradex,apalis-tk1", "nvidia,tegra124";
>
> - memory {
> + memory@0 {
> + device_type = "memory";
> reg = <0x0 0x80000000 0x0 0x80000000>;
> };
>
> diff --git a/arch/arm/boot/dts/tegra124-jetson-tk1.dts
> b/arch/arm/boot/dts/tegra124-jetson-tk1.dts
> index 6dbcf84dafbc..8d9e6ee6c6a7 100644
> --- a/arch/arm/boot/dts/tegra124-jetson-tk1.dts
> +++ b/arch/arm/boot/dts/tegra124-jetson-tk1.dts
> @@ -24,7 +24,8 @@
> stdout-path = "serial0:115200n8";
> };
>
> - memory {
> + memory@0 {
> + device_type = "memory";
> reg = <0x0 0x80000000 0x0 0x80000000>;
> };
>
> diff --git a/arch/arm/boot/dts/tegra124-nyan.dtsi
> b/arch/arm/boot/dts/tegra124-nyan.dtsi
> index 3609367037a6..15a2b0e3237e 100644
> --- a/arch/arm/boot/dts/tegra124-nyan.dtsi
> +++ b/arch/arm/boot/dts/tegra124-nyan.dtsi
> @@ -13,7 +13,8 @@
> stdout-path = "serial0:115200n8";
> };
>
> - memory {
> + memory@0 {
> + device_type = "memory";
> reg = <0x0 0x80000000 0x0 0x80000000>;
> };
>
> diff --git a/arch/arm/boot/dts/tegra124-venice2.dts
> b/arch/arm/boot/dts/tegra124-venice2.dts
> index 89bcc178994d..241cdc4b6600 100644
> --- a/arch/arm/boot/dts/tegra124-venice2.dts
> +++ b/arch/arm/boot/dts/tegra124-venice2.dts
> @@ -18,7 +18,8 @@
> stdout-path = "serial0:115200n8";
> };
>
> - memory {
> + memory@0 {
> + device_type = "memory";
> reg = <0x0 0x80000000 0x0 0x80000000>;
> };
>
> diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi
> index 174092bfac90..df1642876a4c 100644
> --- a/arch/arm/boot/dts/tegra124.dtsi
> +++ b/arch/arm/boot/dts/tegra124.dtsi
> @@ -7,8 +7,6 @@
> #include <dt-bindings/reset/tegra124-car.h>
> #include <dt-bindings/thermal/tegra124-soctherm.h>
>
> -#include "skeleton.dtsi"
> -
> / {
> compatible = "nvidia,tegra124";
> interrupt-parent = <&lic>;
> diff --git a/arch/arm/boot/dts/tegra20-colibri-512.dtsi
> b/arch/arm/boot/dts/tegra20-colibri-512.dtsi
> index 5c202b3e3bb1..305efb275b48 100644
> --- a/arch/arm/boot/dts/tegra20-colibri-512.dtsi
> +++ b/arch/arm/boot/dts/tegra20-colibri-512.dtsi
> @@ -10,7 +10,8 @@
> rtc1 = "/rtc@...0e000";
> };
>
> - memory {
> + memory@0 {
> + device_type = "memory";
> reg = <0x00000000 0x20000000>;
> };
>
> diff --git a/arch/arm/boot/dts/tegra20-harmony.dts
> b/arch/arm/boot/dts/tegra20-harmony.dts
> index 628a55a9318b..5009a55ae15c 100644
> --- a/arch/arm/boot/dts/tegra20-harmony.dts
> +++ b/arch/arm/boot/dts/tegra20-harmony.dts
> @@ -18,7 +18,8 @@
> stdout-path = "serial0:115200n8";
> };
>
> - memory {
> + memory@0 {
> + device_type = "memory";
> reg = <0x00000000 0x40000000>;
> };
>
> diff --git a/arch/arm/boot/dts/tegra20-paz00.dts
> b/arch/arm/boot/dts/tegra20-paz00.dts
> index 30436969adc0..e794ac5442ef 100644
> --- a/arch/arm/boot/dts/tegra20-paz00.dts
> +++ b/arch/arm/boot/dts/tegra20-paz00.dts
> @@ -19,7 +19,8 @@
> stdout-path = "serial0:115200n8";
> };
>
> - memory {
> + memory@0 {
> + device_type = "memory";
> reg = <0x00000000 0x20000000>;
> };
>
> diff --git a/arch/arm/boot/dts/tegra20-seaboard.dts
> b/arch/arm/boot/dts/tegra20-seaboard.dts
> index 284aae351ff2..6cb832cfa4f3 100644
> --- a/arch/arm/boot/dts/tegra20-seaboard.dts
> +++ b/arch/arm/boot/dts/tegra20-seaboard.dts
> @@ -18,7 +18,8 @@
> stdout-path = "serial0:115200n8";
> };
>
> - memory {
> + memory@0 {
> + device_type = "memory";
> reg = <0x00000000 0x40000000>;
> };
>
> diff --git a/arch/arm/boot/dts/tegra20-tamonten.dtsi
> b/arch/arm/boot/dts/tegra20-tamonten.dtsi
> index 872046d48709..6ceb1228fed3 100644
> --- a/arch/arm/boot/dts/tegra20-tamonten.dtsi
> +++ b/arch/arm/boot/dts/tegra20-tamonten.dtsi
> @@ -15,7 +15,8 @@
> stdout-path = "serial0:115200n8";
> };
>
> - memory {
> + memory@0 {
> + device_type = "memory";
> reg = <0x00000000 0x20000000>;
> };
>
> diff --git a/arch/arm/boot/dts/tegra20-trimslice.dts
> b/arch/arm/boot/dts/tegra20-trimslice.dts
> index d55c6b240a30..3f94be3da9e5 100644
> --- a/arch/arm/boot/dts/tegra20-trimslice.dts
> +++ b/arch/arm/boot/dts/tegra20-trimslice.dts
> @@ -18,7 +18,8 @@
> stdout-path = "serial0:115200n8";
> };
>
> - memory {
> + memory@0 {
> + device_type = "memory";
> reg = <0x00000000 0x40000000>;
> };
>
> diff --git a/arch/arm/boot/dts/tegra20-ventana.dts
> b/arch/arm/boot/dts/tegra20-ventana.dts
> index ee3fbf941e79..c897a90289bc 100644
> --- a/arch/arm/boot/dts/tegra20-ventana.dts
> +++ b/arch/arm/boot/dts/tegra20-ventana.dts
> @@ -18,7 +18,8 @@
> stdout-path = "serial0:115200n8";
> };
>
> - memory {
> + memory@0 {
> + device_type = "memory";
> reg = <0x00000000 0x40000000>;
> };
>
> diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
> index 0a7136462a1a..290ebbeb210f 100644
> --- a/arch/arm/boot/dts/tegra20.dtsi
> +++ b/arch/arm/boot/dts/tegra20.dtsi
> @@ -4,11 +4,14 @@
> #include <dt-bindings/pinctrl/pinctrl-tegra.h>
> #include <dt-bindings/interrupt-controller/arm-gic.h>
>
> -#include "skeleton.dtsi"
> -
> / {
> compatible = "nvidia,tegra20";
> interrupt-parent = <&lic>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + chosen { };
> + aliases { };
>
> iram@...00000 {
> compatible = "mmio-sram";
> diff --git a/arch/arm/boot/dts/tegra30-apalis.dtsi
> b/arch/arm/boot/dts/tegra30-apalis.dtsi
> index d1d21ec2a844..184f60c720fa 100644
> --- a/arch/arm/boot/dts/tegra30-apalis.dtsi
> +++ b/arch/arm/boot/dts/tegra30-apalis.dtsi
> @@ -10,6 +10,11 @@
> model = "Toradex Apalis T30";
> compatible = "toradex,apalis_t30", "nvidia,tegra30";
>
> + memory@0 {
> + device_type = "memory";
> + reg = <0 0>;
> + };
> +
> pcie@...0 {
> avdd-pexa-supply = <&vdd2_reg>;
> vdd-pexa-supply = <&vdd2_reg>;
> diff --git a/arch/arm/boot/dts/tegra30-beaver.dts
> b/arch/arm/boot/dts/tegra30-beaver.dts
> index ae52a5039506..72369877d284 100644
> --- a/arch/arm/boot/dts/tegra30-beaver.dts
> +++ b/arch/arm/boot/dts/tegra30-beaver.dts
> @@ -17,7 +17,8 @@
> stdout-path = "serial0:115200n8";
> };
>
> - memory {
> + memory@...00000 {
> + device_type = "memory";
> reg = <0x80000000 0x7ff00000>;
> };
>
> diff --git a/arch/arm/boot/dts/tegra30-cardhu.dtsi
> b/arch/arm/boot/dts/tegra30-cardhu.dtsi
> index 92a9740c533f..24c04d4c335d 100644
> --- a/arch/arm/boot/dts/tegra30-cardhu.dtsi
> +++ b/arch/arm/boot/dts/tegra30-cardhu.dtsi
> @@ -40,7 +40,8 @@
> stdout-path = "serial0:115200n8";
> };
>
> - memory {
> + memory@...00000 {
> + device_type = "memory";
> reg = <0x80000000 0x40000000>;
> };
>
> diff --git a/arch/arm/boot/dts/tegra30-colibri.dtsi
> b/arch/arm/boot/dts/tegra30-colibri.dtsi
> index c44d8c40c410..cc46cedf80b9 100644
> --- a/arch/arm/boot/dts/tegra30-colibri.dtsi
> +++ b/arch/arm/boot/dts/tegra30-colibri.dtsi
> @@ -10,7 +10,8 @@
> model = "Toradex Colibri T30";
> compatible = "toradex,colibri_t30", "nvidia,tegra30";
>
> - memory {
> + memory@...00000 {
> + device_type = "memory";
> reg = <0x80000000 0x40000000>;
> };
>
> diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
> index a110cf84d85f..4383f0fd789d 100644
> --- a/arch/arm/boot/dts/tegra30.dtsi
> +++ b/arch/arm/boot/dts/tegra30.dtsi
> @@ -5,11 +5,14 @@
> #include <dt-bindings/pinctrl/pinctrl-tegra.h>
> #include <dt-bindings/interrupt-controller/arm-gic.h>
>
> -#include "skeleton.dtsi"
> -
> / {
> compatible = "nvidia,tegra30";
> interrupt-parent = <&lic>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + chosen { };
> + aliases { };
Could we not add
memory { device_type = "memory"; };
in the SoC level device trees?
This would save device_type in all other instances.
That is also how it is done in other places, e.g.
arch/arm/boot/dts/imx6qdl.dtsi
Also, could we maybe split this in two?
ARM: dts: tegra: Remove skeleton.dtsi
ARM: dts: tegra: fix DTC warnings for /memory
The first would only touch SoC level dts.
The second then would fix DTC warnings by adding the address to the
memory nodes in all board files.
--
Stefan
>
> pcie@...0 {
> compatible = "nvidia,tegra30-pcie";
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