soc: infineon: psoc4: Add PSOC 4100S Max series support

Add initial support for the PSOC 4100S Max series, starting
with the CY8C4149AZI-S598 (100-TQFP package) used on the
CY8CKIT-041S-MAX development board.

The infrastructure supports adding additional part numbers
in the future as needed.

Signed-off-by: Braeden Lane <Braeden.Lane@infineon.com>

modules/hal_infineon/infineon_kconfig.h

@@ -375,4 +375,17 @@
 
 #endif /* CONFIG_SOC_SERIES_PSOC4100TP */
 
+#if defined(CONFIG_SOC_SERIES_PSOC4100SMAX)
+
+#if defined(CONFIG_SOC_CY8C4149AZI_S598)
+#ifndef CY8C4149AZI_S598
+#define CY8C4149AZI_S598
+#endif
+#ifndef CY8C4149AZI_S598_
+#define CY8C4149AZI_S598_
+#endif
+#endif
+
+#endif /* CONFIG_SOC_SERIES_PSOC4100SMAX */
+
 #endif /* INFINEON_KCONFIG_H__ */

soc/infineon/psoc4/psoc4100smax/CMakeLists.txt

@@ -0,0 +1,10 @@
+# Copyright (c) 2025 Infineon Technologies AG,
+# or an affiliate of Infineon Technologies AG.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+zephyr_sources(soc.c)
+zephyr_include_directories(.)
+
+#default Zephyr linker script
+set(SOC_LINKER_SCRIPT ${ZEPHYR_BASE}/include/zephyr/arch/arm/cortex_m/scripts/linker.ld CACHE INTERNAL "")

soc/infineon/psoc4/psoc4100smax/Kconfig

@@ -0,0 +1,25 @@
+# Copyright (c) 2025 Infineon Technologies AG,
+# or an affiliate of Infineon Technologies AG.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+# SOC Packages for Infineon PSOC4100Smax series MCUs
+config SOC_PACKAGE_PSOC4100SMAX_100_TQFP
+	bool
+	help
+	  100-pin TQFP package
+
+# Hardware configuration for PSOC4100SMAX series
+config SOC_SERIES_PSOC4100SMAX
+	select ARM
+	select CPU_CORTEX_M0PLUS
+	select CPU_CORTEX_M_HAS_VTOR
+	select CPU_HAS_ARM_MPU
+	select BUILD_OUTPUT_HEX
+	select BUILD_OUTPUT_BIN
+	select DYNAMIC_INTERRUPTS
+	select SOC_EARLY_INIT_HOOK
+	select CPU_CORTEX_M_HAS_SYSTICK
+
+config SOC_CY8C4149AZI_S598
+	select SOC_PACKAGE_PSOC4100SMAX_100_TQFP

soc/infineon/psoc4/psoc4100smax/Kconfig.defconfig

@@ -0,0 +1,14 @@
+# Copyright (c) 2025 Infineon Technologies AG,
+# or an affiliate of Infineon Technologies AG.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+if SOC_SERIES_PSOC4100SMAX
+
+config NUM_IRQS
+	default 32
+
+config SYS_CLOCK_HW_CYCLES_PER_SEC
+	default $(dt_node_int_prop_int,/cpus/cpu@0,clock-frequency)
+
+endif # SOC_SERIES_PSOC4100SMAX

soc/infineon/psoc4/psoc4100smax/Kconfig.soc

@@ -0,0 +1,21 @@
+# Copyright (c) 2025 Infineon Technologies AG,
+# or an affiliate of Infineon Technologies AG.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+# MCU series
+config SOC_SERIES_PSOC4100SMAX
+	bool
+	select SOC_FAMILY_INFINEON_PSOC4
+	help
+	  PSOC4100Smax Series MCU
+
+config SOC_SERIES
+	default "psoc4100smax" if SOC_SERIES_PSOC4100SMAX
+
+config SOC_CY8C4149AZI_S598
+	bool
+	select SOC_SERIES_PSOC4100SMAX
+
+config SOC
+	default "cy8c4149azi_s598" if SOC_CY8C4149AZI_S598

soc/infineon/psoc4/psoc4100smax/soc.c

@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2025 Infineon Technologies AG,
+ * or an affiliate of Infineon Technologies AG.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/device.h>
+#include <zephyr/init.h>
+#include <zephyr/kernel.h>
+
+#include <cy_sysint.h>
+#include <system_cat2.h> /* PSoC4 system init header from PDL */
+#include "cy_pdl.h"
+
+/* Minimal early initialization for PSoC 4100S Max */
+void soc_early_init_hook(void)
+{
+	/* Initializes the system */
+	SystemInit();
+}

soc/infineon/psoc4/psoc4100smax/soc.h

@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2025 Infineon Technologies AG,
+ * or an affiliate of Infineon Technologies AG.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef ZEPHYR_SOC_INFINEON_PSOC4_PSOC4100SMAX_SOC_H_
+#define ZEPHYR_SOC_INFINEON_PSOC4_PSOC4100SMAX_SOC_H_
+
+#ifndef _ASMLANGUAGE
+#include <cy_device_headers.h>
+#endif /* !_ASMLANGUAGE */
+
+#endif /* ZEPHYR_SOC_INFINEON_PSOC4_PSOC4100SMAX_SOC_H_ */

soc/infineon/psoc4/soc.yml

@@ -48,3 +48,6 @@ family:
     - name: cy8c4146azq_t453
     - name: cy8c4147azq_t415
     - name: cy8c4147azq_t455
+  - name: psoc4100smax
+    socs:
+    - name: cy8c4149azi_s598