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Date: Wed, 23 May 2018 13:27:27 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Stefan Agner <stefan@...er.ch>
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 v6 2/4] ARM: dts: tegra: Fix unit_address_vs_reg DTC
warnings for /memory
On Wed, May 23, 2018 at 1:00 PM, Stefan Agner <stefan@...er.ch> wrote:
> On 23.05.2018 11:56, Krzysztof Kozlowski wrote:
>> Add a generic /memory node in each Tegra DTSI (with empty reg property,
>> to be overidden by each DTS) and set proper unit address for /memory
>> nodes 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 v5:
>> 1. Split with skeleton.dtsi removal (suggested by Stefan).
>>
>> Changes since v4:
>> 1. None
>> ---
>> arch/arm/boot/dts/tegra114-dalmore.dts | 2 +-
>> arch/arm/boot/dts/tegra114-roth.dts | 2 +-
>> arch/arm/boot/dts/tegra114-tn7.dts | 2 +-
>> arch/arm/boot/dts/tegra114.dtsi | 3 ++-
>> arch/arm/boot/dts/tegra124-apalis-v1.2.dtsi | 2 +-
>> arch/arm/boot/dts/tegra124-apalis.dtsi | 2 +-
>> arch/arm/boot/dts/tegra124-jetson-tk1.dts | 2 +-
>> arch/arm/boot/dts/tegra124-nyan.dtsi | 2 +-
>> arch/arm/boot/dts/tegra124-venice2.dts | 2 +-
>> arch/arm/boot/dts/tegra124.dtsi | 3 ++-
>> arch/arm/boot/dts/tegra20-colibri-512.dtsi | 2 +-
>> arch/arm/boot/dts/tegra20-harmony.dts | 2 +-
>> arch/arm/boot/dts/tegra20-paz00.dts | 2 +-
>> arch/arm/boot/dts/tegra20-seaboard.dts | 2 +-
>> arch/arm/boot/dts/tegra20-tamonten.dtsi | 2 +-
>> arch/arm/boot/dts/tegra20-trimslice.dts | 2 +-
>> arch/arm/boot/dts/tegra20-ventana.dts | 2 +-
>> arch/arm/boot/dts/tegra20.dtsi | 3 ++-
>> arch/arm/boot/dts/tegra30-apalis.dtsi | 4 ++--
>> arch/arm/boot/dts/tegra30-beaver.dts | 2 +-
>> arch/arm/boot/dts/tegra30-cardhu.dtsi | 2 +-
>> arch/arm/boot/dts/tegra30-colibri.dtsi | 2 +-
>> arch/arm/boot/dts/tegra30.dtsi | 3 ++-
>> 23 files changed, 28 insertions(+), 24 deletions(-)
>>
>> diff --git a/arch/arm/boot/dts/tegra114-dalmore.dts
>> b/arch/arm/boot/dts/tegra114-dalmore.dts
>> index eafff16765b4..1788556b4977 100644
>> --- a/arch/arm/boot/dts/tegra114-dalmore.dts
>> +++ b/arch/arm/boot/dts/tegra114-dalmore.dts
>> @@ -23,7 +23,7 @@
>> stdout-path = "serial0:115200n8";
>> };
>>
>> - memory {
>> + memory@...00000 {
>> reg = <0x80000000 0x40000000>;
>> };
>>
>> diff --git a/arch/arm/boot/dts/tegra114-roth.dts
>> b/arch/arm/boot/dts/tegra114-roth.dts
>> index 7ed7370ee67a..3d3835591cd2 100644
>> --- a/arch/arm/boot/dts/tegra114-roth.dts
>> +++ b/arch/arm/boot/dts/tegra114-roth.dts
>> @@ -28,7 +28,7 @@
>> };
>> };
>>
>> - memory {
>> + memory@...00000 {
>> /* 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..bfdd1bf61816 100644
>> --- a/arch/arm/boot/dts/tegra114-tn7.dts
>> +++ b/arch/arm/boot/dts/tegra114-tn7.dts
>> @@ -28,7 +28,7 @@
>> };
>> };
>>
>> - memory {
>> + memory@...00000 {
>> /* 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 27ef515e5640..aff4b8e115bc 100644
>> --- a/arch/arm/boot/dts/tegra114.dtsi
>> +++ b/arch/arm/boot/dts/tegra114.dtsi
>> @@ -11,8 +11,9 @@
>> #address-cells = <1>;
>> #size-cells = <1>;
>>
>> - memory {
>> + memory@...00000 {
>> device_type = "memory";
>> + reg = <0x80000000 0>;
>
> Nit: I'd rather prefer
>
> reg = <0x80000000 0x0>;
Sure.
>> };
>>
>> host1x@...00000 {
>> diff --git a/arch/arm/boot/dts/tegra124-apalis-v1.2.dtsi
>> b/arch/arm/boot/dts/tegra124-apalis-v1.2.dtsi
>> index bb67edb016c5..6a7f45651d38 100644
>> --- a/arch/arm/boot/dts/tegra124-apalis-v1.2.dtsi
>> +++ b/arch/arm/boot/dts/tegra124-apalis-v1.2.dtsi
>> @@ -15,7 +15,7 @@
>> compatible = "toradex,apalis-tk1-v1.2", "toradex,apalis-tk1",
>> "nvidia,tegra124";
>>
>> - memory {
>> + memory@0 {
>> reg = <0x0 0x80000000 0x0 0x80000000>;
>> };
>
> Unit address combines all address cells, so this should be 80000000
> here. See also the device tree spec (v0.2) which has an example in
> chapter 3.4 /memory node.
>
> So this should be:
>
> memory@...00000 {
> ...
>
> Same with all the board files below.
Ah, yes.
>>
>> diff --git a/arch/arm/boot/dts/tegra124-apalis.dtsi
>> b/arch/arm/boot/dts/tegra124-apalis.dtsi
>> index 65a2161b9b8e..e4625abd0a8a 100644
>> --- a/arch/arm/boot/dts/tegra124-apalis.dtsi
>> +++ b/arch/arm/boot/dts/tegra124-apalis.dtsi
>> @@ -50,7 +50,7 @@
>> model = "Toradex Apalis TK1";
>> compatible = "toradex,apalis-tk1", "nvidia,tegra124";
>>
>> - memory {
>> + memory@0 {
>> 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..e23b1159e8fd 100644
>> --- a/arch/arm/boot/dts/tegra124-jetson-tk1.dts
>> +++ b/arch/arm/boot/dts/tegra124-jetson-tk1.dts
>> @@ -24,7 +24,7 @@
>> stdout-path = "serial0:115200n8";
>> };
>>
>> - memory {
>> + memory@0 {
>> 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..f45ac668d88c 100644
>> --- a/arch/arm/boot/dts/tegra124-nyan.dtsi
>> +++ b/arch/arm/boot/dts/tegra124-nyan.dtsi
>> @@ -13,7 +13,7 @@
>> stdout-path = "serial0:115200n8";
>> };
>>
>> - memory {
>> + memory@0 {
>> 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..44492b48e165 100644
>> --- a/arch/arm/boot/dts/tegra124-venice2.dts
>> +++ b/arch/arm/boot/dts/tegra124-venice2.dts
>> @@ -18,7 +18,7 @@
>> stdout-path = "serial0:115200n8";
>> };
>>
>> - memory {
>> + memory@0 {
>> reg = <0x0 0x80000000 0x0 0x80000000>;
>> };
>>
>> diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi
>> index 951feea784af..ad9c9cd6fa8a 100644
>> --- a/arch/arm/boot/dts/tegra124.dtsi
>> +++ b/arch/arm/boot/dts/tegra124.dtsi
>> @@ -13,8 +13,9 @@
>> #address-cells = <2>;
>> #size-cells = <2>;
>>
>> - memory {
>> + memory@0 {
>> device_type = "memory";
>> + reg = <0 0>;
>> };
>
> This should have two address and two size cells I guess. And DDR for all
> TK1 start at 0x0 0x80000000...
>
> So here with a default length of 0:
>
> memory@...00000 {
> reg = <0x0 0x80000000 0x0 0x0>;
> };
Yes, right.
>>
>> pcie@...3000 {
>> diff --git a/arch/arm/boot/dts/tegra20-colibri-512.dtsi
>> b/arch/arm/boot/dts/tegra20-colibri-512.dtsi
>> index 5c202b3e3bb1..5623ff8d128c 100644
>> --- a/arch/arm/boot/dts/tegra20-colibri-512.dtsi
>> +++ b/arch/arm/boot/dts/tegra20-colibri-512.dtsi
>> @@ -10,7 +10,7 @@
>> rtc1 = "/rtc@...0e000";
>> };
>>
>> - memory {
>> + memory@0 {
>> reg = <0x00000000 0x20000000>;
>> };
>>
>> diff --git a/arch/arm/boot/dts/tegra20-harmony.dts
>> b/arch/arm/boot/dts/tegra20-harmony.dts
>> index 628a55a9318b..1d96d92b72a7 100644
>> --- a/arch/arm/boot/dts/tegra20-harmony.dts
>> +++ b/arch/arm/boot/dts/tegra20-harmony.dts
>> @@ -18,7 +18,7 @@
>> stdout-path = "serial0:115200n8";
>> };
>>
>> - memory {
>> + memory@0 {
>> reg = <0x00000000 0x40000000>;
>> };
>>
>> diff --git a/arch/arm/boot/dts/tegra20-paz00.dts
>> b/arch/arm/boot/dts/tegra20-paz00.dts
>> index 30436969adc0..ef245291924f 100644
>> --- a/arch/arm/boot/dts/tegra20-paz00.dts
>> +++ b/arch/arm/boot/dts/tegra20-paz00.dts
>> @@ -19,7 +19,7 @@
>> stdout-path = "serial0:115200n8";
>> };
>>
>> - memory {
>> + memory@0 {
>> reg = <0x00000000 0x20000000>;
>> };
>>
>> diff --git a/arch/arm/boot/dts/tegra20-seaboard.dts
>> b/arch/arm/boot/dts/tegra20-seaboard.dts
>> index 284aae351ff2..f91441683aad 100644
>> --- a/arch/arm/boot/dts/tegra20-seaboard.dts
>> +++ b/arch/arm/boot/dts/tegra20-seaboard.dts
>> @@ -18,7 +18,7 @@
>> stdout-path = "serial0:115200n8";
>> };
>>
>> - memory {
>> + memory@0 {
>> reg = <0x00000000 0x40000000>;
>> };
>>
>> diff --git a/arch/arm/boot/dts/tegra20-tamonten.dtsi
>> b/arch/arm/boot/dts/tegra20-tamonten.dtsi
>> index 872046d48709..20137fc578b1 100644
>> --- a/arch/arm/boot/dts/tegra20-tamonten.dtsi
>> +++ b/arch/arm/boot/dts/tegra20-tamonten.dtsi
>> @@ -15,7 +15,7 @@
>> stdout-path = "serial0:115200n8";
>> };
>>
>> - memory {
>> + memory@0 {
>> reg = <0x00000000 0x20000000>;
>> };
>>
>> diff --git a/arch/arm/boot/dts/tegra20-trimslice.dts
>> b/arch/arm/boot/dts/tegra20-trimslice.dts
>> index d55c6b240a30..9eb26dc15f6b 100644
>> --- a/arch/arm/boot/dts/tegra20-trimslice.dts
>> +++ b/arch/arm/boot/dts/tegra20-trimslice.dts
>> @@ -18,7 +18,7 @@
>> stdout-path = "serial0:115200n8";
>> };
>>
>> - memory {
>> + memory@0 {
>> reg = <0x00000000 0x40000000>;
>> };
>>
>> diff --git a/arch/arm/boot/dts/tegra20-ventana.dts
>> b/arch/arm/boot/dts/tegra20-ventana.dts
>> index ee3fbf941e79..f44551e2d9d0 100644
>> --- a/arch/arm/boot/dts/tegra20-ventana.dts
>> +++ b/arch/arm/boot/dts/tegra20-ventana.dts
>> @@ -18,7 +18,7 @@
>> stdout-path = "serial0:115200n8";
>> };
>>
>> - memory {
>> + memory@0 {
>> reg = <0x00000000 0x40000000>;
>> };
>>
>> diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
>> index 88dd1afb5877..55581c0e5105 100644
>> --- a/arch/arm/boot/dts/tegra20.dtsi
>> +++ b/arch/arm/boot/dts/tegra20.dtsi
>> @@ -13,8 +13,9 @@
>> chosen { };
>> aliases { };
>>
>> - memory {
>> + memory@0 {
>> device_type = "memory";
>> + reg = <0 0>;
>> };
>>
>> iram@...00000 {
>> diff --git a/arch/arm/boot/dts/tegra30-apalis.dtsi
>> b/arch/arm/boot/dts/tegra30-apalis.dtsi
>> index 6f29cbad6e8a..9465fc592b7b 100644
>> --- a/arch/arm/boot/dts/tegra30-apalis.dtsi
>> +++ b/arch/arm/boot/dts/tegra30-apalis.dtsi
>> @@ -10,8 +10,8 @@
>> model = "Toradex Apalis T30";
>> compatible = "toradex,apalis_t30", "nvidia,tegra30";
>>
>> - memory {
>> - reg = <0 0>;
>> + memory@...00000 {
>> + reg = <0x80000000 0x40000000>;
>> };
>>
>> pcie@...0 {
>> diff --git a/arch/arm/boot/dts/tegra30-beaver.dts
>> b/arch/arm/boot/dts/tegra30-beaver.dts
>> index ae52a5039506..1434d50438f9 100644
>> --- a/arch/arm/boot/dts/tegra30-beaver.dts
>> +++ b/arch/arm/boot/dts/tegra30-beaver.dts
>> @@ -17,7 +17,7 @@
>> stdout-path = "serial0:115200n8";
>> };
>>
>> - memory {
>> + memory@...00000 {
>> reg = <0x80000000 0x7ff00000>;
>> };
>>
>> diff --git a/arch/arm/boot/dts/tegra30-cardhu.dtsi
>> b/arch/arm/boot/dts/tegra30-cardhu.dtsi
>> index 92a9740c533f..33b73dca16a3 100644
>> --- a/arch/arm/boot/dts/tegra30-cardhu.dtsi
>> +++ b/arch/arm/boot/dts/tegra30-cardhu.dtsi
>> @@ -40,7 +40,7 @@
>> stdout-path = "serial0:115200n8";
>> };
>>
>> - memory {
>> + memory@...00000 {
>> reg = <0x80000000 0x40000000>;
>> };
>>
>> diff --git a/arch/arm/boot/dts/tegra30-colibri.dtsi
>> b/arch/arm/boot/dts/tegra30-colibri.dtsi
>> index c44d8c40c410..9bf3327665d3 100644
>> --- a/arch/arm/boot/dts/tegra30-colibri.dtsi
>> +++ b/arch/arm/boot/dts/tegra30-colibri.dtsi
>> @@ -10,7 +10,7 @@
>> model = "Toradex Colibri T30";
>> compatible = "toradex,colibri_t30", "nvidia,tegra30";
>>
>> - memory {
>> + memory@...00000 {
>> reg = <0x80000000 0x40000000>;
>> };
>>
>> diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
>> index 19237c08c166..2b6243b0c6d6 100644
>> --- a/arch/arm/boot/dts/tegra30.dtsi
>> +++ b/arch/arm/boot/dts/tegra30.dtsi
>> @@ -14,8 +14,9 @@
>> chosen { };
>> aliases { };
>>
>> - memory {
>> + memory@...00000 {
>> device_type = "memory";
>> + reg = <0x80000000 0>;
>
> Nit: for consistency sake, 0x0 :-)
Sure, thanks for review!
Best regards,
Krzysztof
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