feat(linux): AM62DX: Add RTOS documentation and expand SDK guides

- Add new RTOS/NO-RTOS documentation section with MCU+ SDK links
- Integrate RTOS documentation into main AM62DX index
- Expand table of contents with additional U-Boot guides (UG-UMS, UG-RemoteProc)
- Add kernel driver documentation for MCRC64 and DM-Timer
- Include comprehensive how-to guides for file transfer, resource partitioning,
  filesystem optimization, MCAN testing, K3Conf tool, and CMA configuration

Signed-off-by: Paresh Bhagat <p-bhagat@ti.com>

Author: paresh-bhagat12

configs/AM62DX/AM62DX_linux_toc.txt

@@ -1,4 +1,5 @@
 devices/AM62DX/index
+devices/AM62DX/index_RTOS
 devices/AM62DX/linux/Overview
 devices/AM62DX/linux/Overview_Getting_Started_Guide
 devices/AM62DX/linux/Overview/Download_and_Install_the_SDK
@@ -34,8 +35,10 @@ linux/Foundational_Components/U-Boot/BG-Environment-K3
 linux/Foundational_Components/U-Boot/BG-Ram-Device-Trees-K3
 linux/Foundational_Components/U-Boot/UG-DFU
 linux/Foundational_Components/U-Boot/UG-Memory-K3
+linux/Foundational_Components/U-Boot/UG-UMS
 linux/Foundational_Components/U-Boot/UG-QSPI
 linux/Foundational_Components/U-Boot/UG-UART
+linux/Foundational_Components/U-Boot/UG-RemoteProc
 
 linux/Foundational_Components/U-Boot/Applications
 linux/Foundational_Components/U-Boot/Apps-SPL-Debug-OpenOCD
@@ -47,12 +50,14 @@ linux/Foundational_Components/Kernel/Kernel_Drivers/EQEP
 linux/Foundational_Components/Kernel/Kernel_Drivers/GPIO
 linux/Foundational_Components/Kernel/Kernel_Drivers/I2C
 linux/Foundational_Components/Kernel/Kernel_Drivers/MCAN
+linux/Foundational_Components/Kernel/Kernel_Drivers/MCRC64
 linux/Foundational_Components/Kernel/Kernel_Drivers/Network/CPSW-Ethernet
 linux/Foundational_Components/Kernel/Kernel_Drivers/PWM
 linux/Foundational_Components/Kernel/Kernel_Drivers/SPI
 linux/Foundational_Components/Kernel/Kernel_Drivers/QSPI
 linux/Foundational_Components/Kernel/Kernel_Drivers/Storage/MMC-SD
 #linux/Foundational_Components/Kernel/Kernel_Drivers/Storage/NAND
+linux/Foundational_Components/Kernel/Kernel_Drivers/DM-Timer
 linux/Foundational_Components/Kernel/Kernel_Drivers/UART
 linux/Foundational_Components/Kernel/Kernel_Drivers/UBIFS
 linux/Foundational_Components/Kernel/Kernel_Drivers/VTM
@@ -75,13 +80,19 @@ linux/Foundational_Components_OPTEE
 
 linux/How_to_Guides
 linux/How_to_Guides_Developer_Notes
+linux/How_to_Guides/Host/Moving_Files_to_the_Target_System
+linux/How_to_Guides/Host/K3_Resource_Partitioning_Tool
 linux/How_to_Guides/Host/SYSFW_Trace_Parser
+linux/How_to_Guides/Target/Processor_SDK_Linux_File_System_Optimization_Customization
 linux/How_to_Guides/Target/How_to_enable_DT_overlays_in_linux
 linux/How_to_Guides/Target/How_to_emmc_boot
 linux/How_to_Guides/Target/How_to_mmcsd_boot_emmc_uda
+linux/How_to_Guides/Target/How_to_test_MCAN_on_AM62x
+linux/How_to_Guides/Target/How_to_Use_K3Conf_Tool
 linux/How_to_Guides/Target/Runtime_debug_unlock_on_secure_device
 linux/How_to_Guides/FAQ/How_to_Check_Device_Tree_Info
 linux/How_to_Guides/FAQ/How_to_Integrate_Open_Source_Software
+linux/How_to_Guides/Target/How_To_Carve_Out_CMA
 linux/How_to_Guides_Hardware_Setup_with_CCS
 linux/How_to_Guides/Hardware_Setup_with_CCS/AM62Dx_EVM_Hardware_Setup
 

source/devices/AM62DX/index.rst

@@ -17,6 +17,7 @@ Linux SDK Software Developer's Guide
    /devices/AM62DX/linux/Release_Specific
    /linux/Foundational_Components
    /linux/How_to_Guides
+   /devices/AM62DX/index_RTOS
    /linux/Demo_User_Guides/index_Demos
    /linux/Documentation_Tarball
 

source/devices/AM62DX/index_RTOS.rst

@@ -0,0 +1,7 @@
+#######################
+RTOS/NO-RTOS [MCU+ SDK]
+#######################
+
+**For MCU+ SDK RTOS/NO-RTOS documentation, refer below links**
+
+-  `MCU+ SDK Documentation <https://software-dl.ti.com/mcu-plus-sdk/esd/AM62DX/11_02_00_20/exports/docs/api_guide_am62dx/index.html>`__