| Message ID | 1527069406-6359-4-git-send-email-krzk@kernel.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | [v6,1/4] ARM: dts: tegra: Remove usage of deprecated skeleton.dtsi | expand |
On 23.05.2018 11:56, Krzysztof Kozlowski wrote: > Colibri-T20 can come in 256 MB RAM (with 512 MB NAND) or 512 MB RAM > (with 1024 MB NAND) flavors. Both of them will use the same DTSI > expecting the bootloader to do the fixup of /memory node. However in > case it does not happen, let's stay on safe side by limiting the memory > to 256 MB for both versions of Colibri-T20. > Maybe also mention the renaming stuff: "Rename to remove the unnecessary memory size from the device tree file name. While at it, also follow the typical Toradex SoC, module, carrier board hierarchy." -- Stefan > Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> > > --- > > RFT: > Not tested on 512 MB module as I have only the 256 MB one. > > Changes since v5: > 1. Add "colibri" suffix to iris DTS (suggested by Stefan). > > Changes since v4: > 1. Drop the 512 suffix from file names (suggested by Stefan). > > Changes since v3: > 1. Reduce the memory in existing DTSI instead of creating a new one > (suggested by Marcel). > > Changes since v2: > 1. Do not add new compatible but use everywhere existing > "toradex,colibri_t20-512" (suggested by Rob). > > Changes since v1: > 1. Fix memory size in tegra20-colibri-256.dtsi (was working fine because > my bootloader uses mem= argument). > --- > arch/arm/boot/dts/Makefile | 2 +- > .../boot/dts/{tegra20-iris-512.dts => tegra20-colibri-iris.dts} | 4 ++-- > .../boot/dts/{tegra20-colibri-512.dtsi => tegra20-colibri.dtsi} | 9 +++++++-- > 3 files changed, 10 insertions(+), 5 deletions(-) > rename arch/arm/boot/dts/{tegra20-iris-512.dts => > tegra20-colibri-iris.dts} (95%) > rename arch/arm/boot/dts/{tegra20-colibri-512.dtsi => > tegra20-colibri.dtsi} (98%) > > diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile > index ec2024ea8b1e..1c8bb55c0948 100644 > --- a/arch/arm/boot/dts/Makefile > +++ b/arch/arm/boot/dts/Makefile > @@ -1030,7 +1030,7 @@ dtb-$(CONFIG_ARCH_TANGO) += \ > tango4-vantage-1172.dtb > dtb-$(CONFIG_ARCH_TEGRA_2x_SOC) += \ > tegra20-harmony.dtb \ > - tegra20-iris-512.dtb \ > + tegra20-colibri-iris.dtb \ > tegra20-medcom-wide.dtb \ > tegra20-paz00.dtb \ > tegra20-plutux.dtb \ > diff --git a/arch/arm/boot/dts/tegra20-iris-512.dts > b/arch/arm/boot/dts/tegra20-colibri-iris.dts > similarity index 95% > rename from arch/arm/boot/dts/tegra20-iris-512.dts > rename to arch/arm/boot/dts/tegra20-colibri-iris.dts > index 40126388946d..57f16c0e9917 100644 > --- a/arch/arm/boot/dts/tegra20-iris-512.dts > +++ b/arch/arm/boot/dts/tegra20-colibri-iris.dts > @@ -1,10 +1,10 @@ > // SPDX-License-Identifier: GPL-2.0 > /dts-v1/; > > -#include "tegra20-colibri-512.dtsi" > +#include "tegra20-colibri.dtsi" > > / { > - model = "Toradex Colibri T20 512MB on Iris"; > + model = "Toradex Colibri T20 256/512 MB on Iris"; > compatible = "toradex,iris", "toradex,colibri_t20-512", "nvidia,tegra20"; > > aliases { > diff --git a/arch/arm/boot/dts/tegra20-colibri-512.dtsi > b/arch/arm/boot/dts/tegra20-colibri.dtsi > similarity index 98% > rename from arch/arm/boot/dts/tegra20-colibri-512.dtsi > rename to arch/arm/boot/dts/tegra20-colibri.dtsi > index 5623ff8d128c..dc06b23183e1 100644 > --- a/arch/arm/boot/dts/tegra20-colibri-512.dtsi > +++ b/arch/arm/boot/dts/tegra20-colibri.dtsi > @@ -2,7 +2,7 @@ > #include "tegra20.dtsi" > > / { > - model = "Toradex Colibri T20 512MB"; > + model = "Toradex Colibri T20 256/512 MB"; > compatible = "toradex,colibri_t20-512", "nvidia,tegra20"; > > aliases { > @@ -11,7 +11,12 @@ > }; > > memory@0 { > - reg = <0x00000000 0x20000000>; > + /* > + * Set memory to 256 MB to be safe as this could be used on > + * 256 or 512 MB module. It is expected from bootloader > + * to fix this up for 512 MB version. > + */ > + reg = <0x00000000 0x10000000>; > }; > > host1x@50000000 { -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On Wed, May 23, 2018 at 1:35 PM, Stefan Agner <stefan@agner.ch> wrote: > On 23.05.2018 11:56, Krzysztof Kozlowski wrote: >> Colibri-T20 can come in 256 MB RAM (with 512 MB NAND) or 512 MB RAM >> (with 1024 MB NAND) flavors. Both of them will use the same DTSI >> expecting the bootloader to do the fixup of /memory node. However in >> case it does not happen, let's stay on safe side by limiting the memory >> to 256 MB for both versions of Colibri-T20. >> > > Maybe also mention the renaming stuff: > > "Rename to remove the unnecessary memory size from the device tree file > name. While at it, also follow the typical Toradex SoC, module, carrier > board hierarchy." Since I am going to resend it for v7... no problem. Best regards, Krzysztof -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index ec2024ea8b1e..1c8bb55c0948 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -1030,7 +1030,7 @@ dtb-$(CONFIG_ARCH_TANGO) += \ tango4-vantage-1172.dtb dtb-$(CONFIG_ARCH_TEGRA_2x_SOC) += \ tegra20-harmony.dtb \ - tegra20-iris-512.dtb \ + tegra20-colibri-iris.dtb \ tegra20-medcom-wide.dtb \ tegra20-paz00.dtb \ tegra20-plutux.dtb \ diff --git a/arch/arm/boot/dts/tegra20-iris-512.dts b/arch/arm/boot/dts/tegra20-colibri-iris.dts similarity index 95% rename from arch/arm/boot/dts/tegra20-iris-512.dts rename to arch/arm/boot/dts/tegra20-colibri-iris.dts index 40126388946d..57f16c0e9917 100644 --- a/arch/arm/boot/dts/tegra20-iris-512.dts +++ b/arch/arm/boot/dts/tegra20-colibri-iris.dts @@ -1,10 +1,10 @@ // SPDX-License-Identifier: GPL-2.0 /dts-v1/; -#include "tegra20-colibri-512.dtsi" +#include "tegra20-colibri.dtsi" / { - model = "Toradex Colibri T20 512MB on Iris"; + model = "Toradex Colibri T20 256/512 MB on Iris"; compatible = "toradex,iris", "toradex,colibri_t20-512", "nvidia,tegra20"; aliases { diff --git a/arch/arm/boot/dts/tegra20-colibri-512.dtsi b/arch/arm/boot/dts/tegra20-colibri.dtsi similarity index 98% rename from arch/arm/boot/dts/tegra20-colibri-512.dtsi rename to arch/arm/boot/dts/tegra20-colibri.dtsi index 5623ff8d128c..dc06b23183e1 100644 --- a/arch/arm/boot/dts/tegra20-colibri-512.dtsi +++ b/arch/arm/boot/dts/tegra20-colibri.dtsi @@ -2,7 +2,7 @@ #include "tegra20.dtsi" / { - model = "Toradex Colibri T20 512MB"; + model = "Toradex Colibri T20 256/512 MB"; compatible = "toradex,colibri_t20-512", "nvidia,tegra20"; aliases { @@ -11,7 +11,12 @@ }; memory@0 { - reg = <0x00000000 0x20000000>; + /* + * Set memory to 256 MB to be safe as this could be used on + * 256 or 512 MB module. It is expected from bootloader + * to fix this up for 512 MB version. + */ + reg = <0x00000000 0x10000000>; }; host1x@50000000 {
Colibri-T20 can come in 256 MB RAM (with 512 MB NAND) or 512 MB RAM (with 1024 MB NAND) flavors. Both of them will use the same DTSI expecting the bootloader to do the fixup of /memory node. However in case it does not happen, let's stay on safe side by limiting the memory to 256 MB for both versions of Colibri-T20. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> --- RFT: Not tested on 512 MB module as I have only the 256 MB one. Changes since v5: 1. Add "colibri" suffix to iris DTS (suggested by Stefan). Changes since v4: 1. Drop the 512 suffix from file names (suggested by Stefan). Changes since v3: 1. Reduce the memory in existing DTSI instead of creating a new one (suggested by Marcel). Changes since v2: 1. Do not add new compatible but use everywhere existing "toradex,colibri_t20-512" (suggested by Rob). Changes since v1: 1. Fix memory size in tegra20-colibri-256.dtsi (was working fine because my bootloader uses mem= argument). --- arch/arm/boot/dts/Makefile | 2 +- .../boot/dts/{tegra20-iris-512.dts => tegra20-colibri-iris.dts} | 4 ++-- .../boot/dts/{tegra20-colibri-512.dtsi => tegra20-colibri.dtsi} | 9 +++++++-- 3 files changed, 10 insertions(+), 5 deletions(-) rename arch/arm/boot/dts/{tegra20-iris-512.dts => tegra20-colibri-iris.dts} (95%) rename arch/arm/boot/dts/{tegra20-colibri-512.dtsi => tegra20-colibri.dtsi} (98%)