fix: AM335x/AM437x/AM57x: Update Directory Structure and ARM architectural references

Signed-off-by: Telukula Jeevan Kumar Sahu <[email protected]>

Author: jeevantelukula

source/linux/Foundational_Components/Kernel/_Users_Guide.rst

@@ -483,10 +483,19 @@ But developers may want to deploy and test new Kernel and DTB without going
 through the standard build system. For the specific purpose, board specific
 fitImage.its will be present in the prebuilt-images directory.
 
-Pre-requisites ( Already part of SDK installations ):
+.. ifconfig:: CONFIG_part_family in ('General_family', 'AM335X_family', 'AM437X_family')
+
+   Pre-requisites ( Already part of SDK installations ):
+
+   - Uboot build directory for ARMV7
+   - Linux Image and DTB
+
+.. ifconfig:: CONFIG_part_family not in ('General_family', 'AM335X_family', 'AM437X_family')
 
-- Uboot build directory for ARMV8
-- Linux Image and DTB
+   Pre-requisites ( Already part of SDK installations ):
+
+   - Uboot build directory for ARMV8
+   - Linux Image and DTB
 
 .. note::
 
@@ -626,9 +635,17 @@ Generating the fitImage
 This step will embed the public key in the u-boot.dtb file that was already
 built during the initial u-boot build.
 
-.. code-block:: console
+.. ifconfig:: CONFIG_part_family in ('General_family', 'AM335X_family', 'AM437X_family')
 
-    mkimage -r -f fitImage.its -k $UBOOT_PATH/arch/arm/mach-k3/keys -K $UBOOT_PATH/build/$ARMV8/dts/dt.dtb fitImage
+   .. code-block:: console
+
+      mkimage -r -f fitImage.its -k $UBOOT_PATH/board/ti/keys -K $UBOOT_PATH/build/$ARMV7/dts/dt.dtb fitImage
+
+.. ifconfig:: CONFIG_part_family not in ('General_family', 'AM335X_family', 'AM437X_family')
+
+   .. code-block:: console
+
+      mkimage -r -f fitImage.its -k $UBOOT_PATH/arch/arm/mach-k3/keys -K $UBOOT_PATH/build/$ARMV8/dts/dt.dtb fitImage
 
 .. note::
 
@@ -639,8 +656,15 @@ built during the initial u-boot build.
 Build uboot again
 ^^^^^^^^^^^^^^^^^
 
-The updated u-boot.dtb needs to be packed in u-boot.img for authentication
-so rebuild uboot ARMV8 without changing any parameters.
+.. ifconfig:: CONFIG_part_family in ('General_family', 'AM335X_family', 'AM437X_family')
+
+   The updated u-boot.dtb needs to be packed in u-boot.img for authentication
+   so rebuild uboot ARMV7 without changing any parameters.
+
+.. ifconfig:: CONFIG_part_family not in ('General_family', 'AM335X_family', 'AM437X_family')
+
+   The updated u-boot.dtb needs to be packed in u-boot.img for authentication
+   so rebuild uboot ARMV8 without changing any parameters.
 
 Refer to :ref:`top-level-makefile`
 

source/linux/Overview/_Processor_SDK_Linux_Directory_Structure.rst

@@ -9,21 +9,41 @@ directories and files
 
 .. ifconfig:: CONFIG_sdk in ('SITARA')
 
-    .. code-block:: console
+   .. ifconfig:: CONFIG_part_variant in ('AM335X', 'AM437X', 'AM57X')
 
-        ./
-        ├── bin/
-        ├── board-support/
-        ├── example-applications/
-        ├── filesystem/
-        ├── k3r5-devkit/
-        ├── licenses/
-        ├── linux-devkit/
-        ├── Makefile
-        ├── makerules/
-        ├── manifest/
-        ├── Rules.make
-        └── setup.sh*
+      .. code-block:: console
+
+         ./
+         ├── bin/
+         ├── board-support/
+         ├── example-applications/
+         ├── external-toolchain-dir/
+         ├── filesystem/
+         ├── licenses/
+         ├── linux-devkit/
+         ├── Makefile
+         ├── makerules/
+         ├── manifest/
+         ├── Rules.make
+         └── setup.sh*
+
+   .. ifconfig:: CONFIG_part_variant not in ('AM335X', 'AM437X', 'AM57X')
+
+      .. code-block:: console
+
+         ./
+         ├── bin/
+         ├── board-support/
+         ├── example-applications/
+         ├── filesystem/
+         ├── k3r5-devkit/
+         ├── licenses/
+         ├── linux-devkit/
+         ├── Makefile
+         ├── makerules/
+         ├── manifest/
+         ├── Rules.make
+         └── setup.sh*
 
 .. ifconfig:: CONFIG_sdk in ('JACINTO','j7_foundational')
 
@@ -61,10 +81,20 @@ Processor SDK devices.
 -  **filesystem** - Contains the reference file systems. These include
    the smaller base file system as well as the full-featured SDK file
    system.
--  **linux-devkit** - Contains the tools and libraries to speed
-   development for the target device for the ARMV8 architechture
--  **k3r5-devkit** - Contains the tools and libraries to speed
-   development for the target device for the ARMV7 architechture
+.. ifconfig:: CONFIG_part_variant in ('AM335X', 'AM437X', 'AM57X')
+
+   -  **linux-devkit** - Contains the tools and libraries to speed
+      development for the target device for the ARMV7 architechture
+   -  **external-toolchain-dir** - Contains the external ARM GNU toolchain
+      to speed development for the target device for the ARMV7 architechture
+
+.. ifconfig:: CONFIG_part_variant not in ('AM335X', 'AM437X', 'AM57X')
+
+   -  **linux-devkit** - Contains the tools and libraries to speed
+      development for the target device for the ARMV8 architechture
+   -  **k3r5-devkit** - Contains the tools and libraries to speed
+      development for the target device for the ARMV7 architechture
+
 -  **Makefile** - Provides build targets for many of the SDK components
    from the top-level of the SDK.
 -  **makerules** - Make rules for all the topLevel Makefile build targets