soc: add realtek RTS5817

Add support for the rts5817 MCU

Signed-off-by: Darcy Lu <darcy_lu@realsil.com.cn>

Author: RtkFP

soc/realtek/fingerprint/CMakeLists.txt

@@ -0,0 +1,4 @@
+# Copyright (c) 2024 Realtek Semiconductor, Inc.
+# SPDX-License-Identifier: Apache-2.0
+
+add_subdirectory(${SOC_SERIES})

soc/realtek/fingerprint/Kconfig

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+# Copyright (c) 2024 Realtek Semiconductor, Inc.
+# SPDX-License-Identifier: Apache-2.0
+
+if SOC_FAMILY_FINGERPRINT
+
+rsource "*/Kconfig"
+
+endif # SOC_FAMILY_FINGERPRINT

soc/realtek/fingerprint/Kconfig.defconfig

@@ -0,0 +1,8 @@
+# Copyright (c) 2024 Realtek Semiconductor, Inc.
+# SPDX-License-Identifier: Apache-2.0
+
+if SOC_FAMILY_FINGERPRINT
+
+rsource "*/Kconfig.defconfig"
+
+endif # SOC_FAMILY_FINGERPRINT

soc/realtek/fingerprint/Kconfig.soc

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+# Copyright (c) 2024 Realtek Semiconductor, Inc.
+# SPDX-License-Identifier: Apache-2.0
+
+config SOC_FAMILY_FINGERPRINT
+	bool
+
+config SOC_FAMILY
+	default "fingerprint" if SOC_FAMILY_FINGERPRINT
+
+rsource "*/Kconfig.soc"

soc/realtek/fingerprint/rts5817/CMakeLists.txt

@@ -0,0 +1,8 @@
+# Copyright (c) 2024 Realtek Semiconductor, Inc.
+# SPDX-License-Identifier: Apache-2.0
+
+zephyr_include_directories(.)
+
+zephyr_sources(soc.c)
+
+set(SOC_LINKER_SCRIPT ${ZEPHYR_BASE}/include/zephyr/arch/arm/cortex_m/scripts/linker.ld CACHE INTERNAL "")

soc/realtek/fingerprint/rts5817/Kconfig

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+# Copyright (c) 2024 Realtek Semiconductor, Inc.
+# SPDX-License-Identifier: Apache-2.0
+
+config SOC_SERIES_RTS5817
+	select ARM
+	select CPU_CORTEX_M33
+	select CPU_HAS_FPU
+	select CPU_HAS_ARM_MPU
+	select CPU_HAS_DCACHE
+	select CPU_HAS_ICACHE
+	select CACHE_MANAGEMENT
+	select ARMV8_M_DSP
+	select INIT_ARCH_HW_AT_BOOT
+	select XIP
+	select ARCH_HAS_EXTRA_EXCEPTION_INFO
+	select SOC_EARLY_INIT_HOOK

soc/realtek/fingerprint/rts5817/Kconfig.defconfig

@@ -0,0 +1,12 @@
+# Copyright (c) 2024 Realtek Semiconductor, Inc.
+# SPDX-License-Identifier: Apache-2.0
+
+if SOC_SERIES_RTS5817
+
+config SYS_CLOCK_HW_CYCLES_PER_SEC
+	default $(dt_node_int_prop_int,/cpus/cpu@0,clock-frequency)
+
+config NUM_IRQS
+	default 32
+
+endif # SOC_SERIES_RTS5817

soc/realtek/fingerprint/rts5817/Kconfig.soc

@@ -0,0 +1,16 @@
+# Copyright (c) 2024 Realtek Semiconductor, Inc.
+# SPDX-License-Identifier: Apache-2.0
+
+config SOC_SERIES_RTS5817
+	bool
+	select SOC_FAMILY_FINGERPRINT
+
+config SOC_RTS5817
+	bool
+	select SOC_SERIES_RTS5817
+
+config SOC
+	default "rts5817" if SOC_RTS5817
+
+config SOC_SERIES
+	default "rts5817" if SOC_SERIES_RTS5817

soc/realtek/fingerprint/rts5817/pinctrl_soc.h

@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2024 Realtek Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef ZEPHYR_SOC_ARM_REALTEK_RTS5817_PINCTRL_SOC_H_
+#define ZEPHYR_SOC_ARM_REALTEK_RTS5817_PINCTRL_SOC_H_
+
+#include <zephyr/devicetree.h>
+#include <zephyr/dt-bindings/pinctrl/rts5817_pinctrl.h>
+
+typedef struct pinctrl_soc_pin {
+	uint8_t pin: 8;
+	uint8_t func: 3;
+	uint8_t pulldown: 1;
+	uint8_t pullup: 1;
+	uint8_t power_source: 2;
+} pinctrl_soc_pin_t;
+
+#define Z_PINCTRL_STATE_PIN_INIT(node_id, prop, idx)                                               \
+	{                                                                                          \
+		.pin = RTS_FP_PINMUX_PIN(DT_PROP_BY_IDX(node_id, prop, idx)),                      \
+		.func = RTS_FP_PINMUX_FUNC(DT_PROP_BY_IDX(node_id, prop, idx)),                    \
+		.pulldown = DT_PROP(node_id, bias_pull_down),                                      \
+		.pullup = DT_PROP(node_id, bias_pull_up),                                          \
+		.power_source = (DT_PROP_OR(node_id, power_source, IO_POWER_3V3)),                 \
+	},
+
+#define Z_PINCTRL_STATE_PINS_INIT(node_id, prop)                                                   \
+	{DT_FOREACH_CHILD_VARGS(DT_PHANDLE(node_id, prop), DT_FOREACH_PROP_ELEM, pinmux,           \
+				Z_PINCTRL_STATE_PIN_INIT)}
+
+#endif /* ZEPHYR_SOC_ARM_REALTEK_RTS5817_PINCTRL_SOC_H_ */

soc/realtek/fingerprint/rts5817/soc.c

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+/*
+ * Copyright (c) 2024 Realtek Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <zephyr/kernel.h>
+#include <zephyr/device.h>
+#include <zephyr/init.h>
+#include <zephyr/cache.h>
+#include <soc.h>
+
+#include <cmsis_core.h>
+
+/**
+ * @brief Initialize cache
+ *
+ */
+static void cache_init(void)
+{
+	sys_cache_instr_enable();
+	sys_cache_data_enable();
+}
+
+/**
+ * @brief Perform basic hardware initialization at boot.
+ *
+ * This needs to be run from the very beginning.
+ */
+void soc_early_init_hook(void)
+{
+	cache_init();
+}