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soc: ambiq: apollo2: Add support for Apollo2 SOC Series #93614

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Added basic UART Functionality for Apollo2 SoC Series and Modifying the ambiq pl011 uart driver to avoid multiple n instances. Hello_World and Shell Samples tested OK.

Data Sheet : https://www.fujitsu.com/uk/imagesgig5/Apollo2_Blue_MCU_Data_Sheet_rev0p8.pdf or https://ambiq.com/apollo2/

Signed-off-by: Sri Surya srisurya@linumiz.com

Add pinctrl bindings for apollo2 soc

Signed-off-by: Sri Surya <srisurya@linumiz.com>
This commit adds pinctrl support for Apollo2 SoC.

Signed-off-by: Sri Surya <srisurya@linumiz.com>
Added UART Support for Apollo2 SOC and cleanup.

Signed-off-by: Sri Surya <srisurya@linumiz.com>
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github-actions bot commented Jul 23, 2025

The following west manifest projects have changed revision in this Pull Request:

Name Old Revision New Revision Diff
hal_ambiq zephyrproject-rtos/hal_ambiq@84ccbfc ❌ Impostor SHA: zephyrproject-rtos/hal_ambiq@def0ec5 zephyrproject-rtos/hal_ambiq@84ccbfc0..def0ec5e

DNM label due to: 1 impostor SHA

Note: This message is automatically posted and updated by the Manifest GitHub Action.

Comment on lines 8 to 9
config SYS_CLOCK_HW_CYCLES_PER_SEC
default 32768
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value should be at soc level and needs to come from dts property

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Addressed.

group1 {
pinmux = <UART0TX_P22>;
};
group2 {
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newline gap between nodes, line 15, fix in whole PR

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Addressed.

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reduce resolution, save as webp, put through https://tinypng.com/

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Addressed.

Added DTSI for Apollo2 SOC family

Signed-off-by: Sri Surya <srisurya@linumiz.com>
Added SoC series for the Ambiq Apollo2 SoC.

Signed-off-by: Sri Surya <srisurya@linumiz.com>
Adds support for the Ambiq Apollo2 EVB board (AMAPHEVB).

Signed-off-by: Sri Surya <srisurya@linumiz.com>
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@nordicjm Addressed your Change request. Check once when you revisit. Thanks.

@srisurya1 srisurya1 requested a review from nordicjm July 24, 2025 18:46
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area: Pinctrl area: UART Universal Asynchronous Receiver-Transmitter DNM (manifest) This PR should not be merged (controlled by action-manifest) manifest manifest-hal_ambiq platform: Ambiq Ambiq
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5 participants