From 59bfe591eff4fcd44306e6936b58a8c7ba7c3938 Mon Sep 17 00:00:00 2001
From: Celina Sophie Kalus <hello@celinakalus.de>
Date: Thu, 2 May 2024 14:50:41 +0200
Subject: [PATCH] samples: drivers: mbox: Add support for stm32h747i_disco
 board

With the addition of the STM32 hardware semaphore MBOX driver, this
sample is now supported by the board.

Signed-off-by: Celina Sophie Kalus <hello@celinakalus.de>
---
 samples/drivers/mbox/CMakeLists.txt           |  3 ++-
 samples/drivers/mbox/Kconfig.sysbuild         |  1 +
 .../stm32h747i_disco_stm32h747xx_m7.conf      |  1 +
 .../stm32h747i_disco_stm32h747xx_m7.overlay   | 17 ++++++++++++
 samples/drivers/mbox/remote/CMakeLists.txt    |  3 ++-
 .../stm32h747i_disco_stm32h747xx_m4.conf      |  5 ++++
 .../stm32h747i_disco_stm32h747xx_m4.overlay   | 26 +++++++++++++++++++
 7 files changed, 54 insertions(+), 2 deletions(-)
 create mode 100644 samples/drivers/mbox/boards/stm32h747i_disco_stm32h747xx_m7.conf
 create mode 100644 samples/drivers/mbox/boards/stm32h747i_disco_stm32h747xx_m7.overlay
 create mode 100644 samples/drivers/mbox/remote/boards/stm32h747i_disco_stm32h747xx_m4.conf
 create mode 100644 samples/drivers/mbox/remote/boards/stm32h747i_disco_stm32h747xx_m4.overlay

diff --git a/samples/drivers/mbox/CMakeLists.txt b/samples/drivers/mbox/CMakeLists.txt
index d279843dacd..3ca0508ab8c 100644
--- a/samples/drivers/mbox/CMakeLists.txt
+++ b/samples/drivers/mbox/CMakeLists.txt
@@ -17,7 +17,8 @@ if(CONFIG_BOARD_NRF5340DK_NRF5340_CPUAPP OR
    CONFIG_BOARD_MIMXRT1170_EVK_MIMXRT1176_CM7 OR
    CONFIG_BOARD_MIMXRT1160_EVK_MIMXRT1166_CM7 OR
    CONFIG_BOARD_LPCXPRESSO55S69_LPC55S69_CPU0 OR
-   CONFIG_BOARD_NRF54H20DK_NRF54H20_CPUAPP)
+   CONFIG_BOARD_NRF54H20DK_NRF54H20_CPUAPP OR
+   CONFIG_BOARD_STM32H747I_DISCO_STM32H747XX_M7)
   message(STATUS "${BOARD}${BOARD_QUALIFIERS} compile as Main in this sample")
 else()
   message(FATAL_ERROR "${BOARD}${BOARD_QUALIFIERS} is not supported for this sample")
diff --git a/samples/drivers/mbox/Kconfig.sysbuild b/samples/drivers/mbox/Kconfig.sysbuild
index b8d7e17c29a..c89a6f7b3f7 100644
--- a/samples/drivers/mbox/Kconfig.sysbuild
+++ b/samples/drivers/mbox/Kconfig.sysbuild
@@ -15,3 +15,4 @@ string
 	default "mimxrt1160_evk/mimxrt1166/cm4" if $(BOARD) = "mimxrt1160_evk"
 	default "lpcxpresso55s69/lpc55s69/cpu1" if $(BOARD) = "lpcxpresso55s69"
 	default "nrf54h20dk/nrf54h20/cpuppr" if $(BOARD) = "nrf54h20dk"
+	default "stm32h747i_disco/stm32h747xx/m4" if $(BOARD) = "stm32h747i_disco"
diff --git a/samples/drivers/mbox/boards/stm32h747i_disco_stm32h747xx_m7.conf b/samples/drivers/mbox/boards/stm32h747i_disco_stm32h747xx_m7.conf
new file mode 100644
index 00000000000..acba758575a
--- /dev/null
+++ b/samples/drivers/mbox/boards/stm32h747i_disco_stm32h747xx_m7.conf
@@ -0,0 +1 @@
+CONFIG_MBOX_STM32_HSEM=y
diff --git a/samples/drivers/mbox/boards/stm32h747i_disco_stm32h747xx_m7.overlay b/samples/drivers/mbox/boards/stm32h747i_disco_stm32h747xx_m7.overlay
new file mode 100644
index 00000000000..d86cbbc2d42
--- /dev/null
+++ b/samples/drivers/mbox/boards/stm32h747i_disco_stm32h747xx_m7.overlay
@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2024 Celina Sophie Kalus <hello@celinakalus.de>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	mbox-consumer {
+		compatible = "vnd,mbox-consumer";
+		mboxes = <&mailbox 11>, <&mailbox 10>;
+		mbox-names = "tx", "rx";
+	};
+};
+
+&mailbox {
+	status = "okay";
+};
diff --git a/samples/drivers/mbox/remote/CMakeLists.txt b/samples/drivers/mbox/remote/CMakeLists.txt
index 9c19a0e8b46..9bc1c67a61c 100644
--- a/samples/drivers/mbox/remote/CMakeLists.txt
+++ b/samples/drivers/mbox/remote/CMakeLists.txt
@@ -15,7 +15,8 @@ if(CONFIG_BOARD_NRF5340DK_NRF5340_CPUNET OR
    CONFIG_BOARD_MIMXRT1170_EVK_MIMXRT1176_CM4 OR
    CONFIG_BOARD_MIMXRT1160_EVK_MIMXRT1166_CM4 OR
    CONFIG_BOARD_LPCXPRESSO55S69_LPC55S69_CPU1 OR
-   CONFIG_BOARD_NRF54H20DK_NRF54H20_CPUPPR)
+   CONFIG_BOARD_NRF54H20DK_NRF54H20_CPUPPR OR
+   CONFIG_BOARD_STM32H747I_DISCO_STM32H747XX_M4)
   message(STATUS "${BOARD}${BOARD_QUALIFIERS} compile as remote in this sample")
 else()
   message(FATAL_ERROR "${BOARD}${BOARD_QUALIFIERS} is not supported for this sample")
diff --git a/samples/drivers/mbox/remote/boards/stm32h747i_disco_stm32h747xx_m4.conf b/samples/drivers/mbox/remote/boards/stm32h747i_disco_stm32h747xx_m4.conf
new file mode 100644
index 00000000000..110236f8fbd
--- /dev/null
+++ b/samples/drivers/mbox/remote/boards/stm32h747i_disco_stm32h747xx_m4.conf
@@ -0,0 +1,5 @@
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y
+CONFIG_LOG_BACKEND_UART=y
+
+CONFIG_MBOX_STM32_HSEM=y
diff --git a/samples/drivers/mbox/remote/boards/stm32h747i_disco_stm32h747xx_m4.overlay b/samples/drivers/mbox/remote/boards/stm32h747i_disco_stm32h747xx_m4.overlay
new file mode 100644
index 00000000000..c39e05aeb9c
--- /dev/null
+++ b/samples/drivers/mbox/remote/boards/stm32h747i_disco_stm32h747xx_m4.overlay
@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2024 Celina Sophie Kalus <hello@celinakalus.de>
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/ {
+	chosen {
+		zephyr,console = &uart8;
+		zephyr,shell-uart = &uart8;
+	};
+
+	mbox-consumer {
+		compatible = "vnd,mbox-consumer";
+		mboxes = <&mailbox 10>, <&mailbox 11>;
+		mbox-names = "tx", "rx";
+	};
+};
+
+&uart8 {
+	status = "okay";
+};
+
+&mailbox {
+	status = "okay";
+};