simplelink: ti: Add support for Demo II

This release of TI Zephyr is based on v3.7.0 and includes support and
maintenance for the following Texas Instruments boards and devices.

Devices
- [CC2340R5](https://www.ti.com/product/CC2340R5)

Boards
- [lp_em_cc2340r5](https://www.ti.com/tool/LP-EM-CC2340R5)

Supported Zephyr Examples
- hci_uart
- broadcaster
- observer
- scan_adv
- extended_adv/advertiser
- peripheral
- central
- peripheral_dis
- peripheral_gatt_write
- central_gatt_write

Supported Drivers:
- UART
- Watchdog
- GPIO
- SPI
- Crypto
- ADC
- I2C
- PWM
Signed-off-by: Masha Heller <masha.heller@ti.com>
Signed-off-by: Lars Thalian Morstad <l-morstad@ti.com>

Author: LarsMorstadTI

README.md

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+# Texas Instruments Support for Zephyr
+
+<p align="center">
+  <img src="doc/images/ti_logo.png" />
+</p>
+
+The Texas Instruments Zephyr GitHub repository is the starting point for Zephyr
+development on supported Texas Instruments devices. TI's Zephyr solution is
+based on the Zephyr project and utilizes the same familiar environment, tools,
+and dependencies.
+
+## What is Zephyr?
+
+The Zephyr Project is a scalable real-time operating system (RTOS) supporting
+multiple hardware architectures, optimized for resource constrained devices,
+and built with security in mind.
+
+The Zephyr OS is based on a small-footprint kernel designed for use on
+resource-constrained systems: from simple embedded environmental sensors and
+LED wearables to sophisticated smart watches and IoT wireless gateways.
+
+This release in the downstream repository of TI Zephyr is based on a tagged
+release from the Zephyr upstream. TI has built on top of that Zephyr version
+to add support for specific SimpleLink Wireless MCUs. Please see the
+[Release Notes](#releases) for information about which upstream Zephyr release
+this TI release is based on. Other dependency info is included there as well.
+
+This release only contains
+support for the `CC2340R5` device. The `CC32xx` and `CC13xx_CC26xx` devices are
+not supported in this release. However, the Zephyr community continues to
+support them in the upstream repositories.
+
+### Devices
+
+Supported by this release:
+
+- [CC2340R52](https://www.ti.com/product/CC2340R5)
+
+Beta support:
+
+Limited testing was also performed on the `CC2340R53`, a variant of the CC2340R5
+with 64kB of SRAM. Please note that some examples that require more RAM should
+be run on the CC2340R53. Please see the release notes for more details.
+
+To use this device, change [`cc2340r5.dtsi`](dts/arm/ti/cc2340r5.dtsi)
+as follows:
+
+```dts
+sram0: memory@20000000 {
+  reg = <0x20000000 DT_SIZE_K(64)>;
+};
+```
+
+Supported by the Zephyr community:
+
+- CC1352R
+- CC2652P
+- CC2652R
+- CC1352P7
+- CC1352R7
+- CC2652P7
+- CC2652R7
+- CC3220SF
+- CC3235SF
+
+### Boards
+
+Supported by this release:
+
+- [lp_em_cc2340r5](https://www.ti.com/tool/LP-EM-CC2340R5)
+
+Supported by the Zephyr community:
+
+- cc1352p1_launchxl
+- cc1352p7_launchpad
+- cc1352r1_launchxl
+- cc26x2r1_launchxl
+- cc3220sf_launchxl
+- cc3235sf_launchxl
+
+## Getting Started
+
+For getting started, please refer to the
+[Upstream Zephyr Readme](https://github.com/zephyrproject-rtos/zephyr/blob/main/README.rst)
+for the Zephyr project and follow the same getting-started guide for setting up
+the environment and building your first application.
+
+> **_NOTE:_** When running `west init` in the getting-started guide it's
+> important to instead run `west init -m https://github.com/TexasInstruments/simplelink-zephyr --mr {tag-name} zephyrproject`
+> in order to use the TI Zephyr repository.
+> The `{tag-name}` changes with each release from TI.
+>
+> You can look up the latest tag from the following link:
+> https://github.com/TexasInstruments/simplelink-zephyr/tags
+
+
+## Tools support
+
+Currently the XDS110 debugger supplied with TI Launchpads is not natively
+supported in the `west` Zephyr tool for all devices. In order to flash/debug the
+`CC2340R5` device with `west`, only [JLink](https://www.segger.com/downloads/jlink/)
+is available. The recommended version to use is V7.94f which has been used for
+validation. Note that it is also possible to build an application in Zephyr
+targeting `CC2340R5`, and to use [Code Composer Studio](https://www.ti.com/tool/CCSTUDIO)
+to both flash and debug the application using the XDS110 debugger.
+
+## Versioning
+
+TI will tag each release with the following format: {upstream-tag}-ti-M.mm.pp(\_optional-qualifier)
+
+This tag can be broken down into 4 components:
+
+- upstream-tag: This is the tag or commit of the [Zephyr](https://github.com/zephyrproject-rtos/zephyr)
+  repo that the TI release is based on
+- -ti-: Separator
+- TI release version: This is TI's version on top of the upstream Zephyr
+  version. The version scheme is explained below.
+- Qualifier. The qualifier keyword is described below.
+
+### TI Versioning Scheme
+
+The TI version follows a version format, M.mm.pp, where:
+
+- M is a 1 digit major number,
+- mm is a 2 digit minor number,
+- pp is a 2 digit patch number.
+
+M.mm will follow TI's SimpleLink SDK version and is an indicator that the TI
+added content is based on the SimpleLink SDK with matching M.mm.
+
+### Qualifier
+
+Tags that are appended with \_ea are for demo only and are beta quality, while
+tags without the \_ea keyword should be treated as production worthy releases.
+
+## Releases
+
+All releases will be tagged using the version format above. Release notes are
+provided in the form of GitHub's release notices. Read the release notes for
+your selected version here:
+
+https://github.com/TexasInstruments/simplelink-zephyr/releases/
+
+### Disclaimer
+
+This release is provided as-is and should be considered Beta quality. This
+product is meant for demonstration purposes only. Please refer to the Release Notes for
+details on specific limitations and known issues.
+
+## Need help?
+
+- For technical support with TI Zephyr, including bugs and feature requests -
+  submit a ticket to [TI's Wireless Connectivity E2E forum](https://e2e.ti.com/support/wireless-connectivity/)
+  > **_NOTE:_** Please do not use the Github issue tracker for this project.
+
+Additionally, we welcome any feedback that you can give to improve the
+documentation!

README.rst

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+# Copyright (c) 2024 Texas Instruments Incorporated
+# Copyright (c) 2024 BayLibre, SAS
+#
+# SPDX-License-Identifier: Apache-2.0
+
+board_runner_args(jlink "--device=CC2340R5")
+include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)

boards/arm/lp_em_cc2340r5/board.cmake

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+if BOARD_LP_EM_CC2340R5
+
+
+if BT
+
+config ZEPHYR
+  bool "Bluetooth TI Controller on ZEPHYR"
+
+  help
+    Bluetooth TI Controller on ZEPHYR OS.
+  default y
+  
+config BT_LL_HEAP_SIZE
+    hex "LL Heap memory pool size (in bytes)"
+    default 0x1800
+
+endif # BT
+
+endif # BOARD_LP_EM_CC2340R5

boards/ti/lp_em_cc2340r5/Kconfig.defconfig

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+# Copyright (c) 2024 Texas Instruments Incorporated
+# Copyright (c) 2024 BayLibre, SAS
+#
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_LP_EM_CC2340R5
+	select SOC_CC2340R5
+
+config BOARD_USE_LF_XOSC
+	bool "Use external low-frequency crystal"
+	default y

boards/ti/lp_em_cc2340r5/Kconfig.lp_em_cc2340r5

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+# Copyright (c) 2024 Texas Instruments Incorporated
+# Copyright (c) 2024 BayLibre, SAS
+#
+# SPDX-License-Identifier: Apache-2.0
+
+board_runner_args(jlink "--device=CC2340R5")
+include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)

boards/ti/lp_em_cc2340r5/board.cmake

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+board:
+  name: lp_em_cc2340r5
+  vendor: ti
+  socs:
+    - name: cc2340r5

boards/ti/lp_em_cc2340r5/board.yml

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+/*
+ * Copyright (c) 2024 Texas Instruments Incorporated
+ * Copyright (c) 2024 BayLibre, SAS
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	boosterpack_header: connector {
+		compatible = "ti,boosterpack-header";
+		#gpio-cells = <2>;
+		gpio-map = <3 0 &gpio0 22 0>,
+			   <4 0 &gpio0 20 0>,
+			   <7 0 &gpio0 18 0>,
+			   <8 0 &gpio0 3 0>,
+			   <9 0 &gpio0 24 0>,
+			   <10 0 &gpio0 0 0>,
+
+			   <12 0 &gpio0 9 0>,
+			   <13 0 &gpio0 10 0>,
+			   <14 0 &gpio0 12 0>,
+			   <15 0 &gpio0 13 0>,
+			   <17 0 &gpio0 19 0>,
+			   <18 0 &gpio0 11 0>,
+
+			   <23 0 &gpio0 23 0>,
+			   <24 0 &gpio0 25 0>,
+			   <25 0 &gpio0 1 0>,
+			   <26 0 &gpio0 2 0>,
+			   <27 0 &gpio0 5 0>,
+			   <28 0 &gpio0 7 0>,
+
+			   <36 0 &gpio0 8 0>,
+			   <37 0 &gpio0 21 0>,
+			   <38 0 &gpio0 6 0>,
+			   <39 0 &gpio0 14 0>,
+			   <40 0 &gpio0 15 0>;
+	};
+};