[bsp][nxp][imx] Add FRDM-i.MX91 support

Author: xusiwei

bsp/nxp/imx/imx91/.config

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+mainmenu "RT-Thread Project Configuration"
+
+BSP_DIR := .
+
+RTT_DIR := ../../../..
+
+PKGS_DIR := packages
+
+source "$(RTT_DIR)/Kconfig"
+osource "$PKGS_DIR/Kconfig"
+
+config BOARD_IMX91
+    bool
+    select ARCH_ARM_CORTEX_A55
+    select BSP_USING_GICV3
+    select BSP_USING_GIC
+    default y
+
+config SOC_MIMX91X1D
+    bool
+    select ARCH_ARMV8
+    select ARCH_CPU_64BIT
+    select RT_USING_CACHE
+    select RT_USING_COMPONENTS_INIT
+    select RT_USING_USER_MAIN
+    select ARCH_ARM_BOOTWITH_FLUSH_CACHE
+    default y
+
+source "$(BSP_DIR)/drivers/Kconfig"

bsp/nxp/imx/imx91/Kconfig

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+scons:=python ${SCONS}\scons.py
+
+all:
+	@$(scons)
+
+clean:
+	@$(scons) -c
+
+copy:
+	@$(scons) --copy -s

bsp/nxp/imx/imx91/Makefile

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+# FRDM-IMX91 RT-Thread BSP
+
+This folder contains the RT-Thread BSP for the NXP FRDM-IMX91 development board.
+
+## Board Overview
+
+## Build and Run
+
+### Setup RT-Thread Development Environment
+
+### Setup Network and TFTP Server for FRDM-IMX91
+
+### Build RT-Thread BSP for FRDM-IMX91
+
+1. Clone the RT-Thread repository:
+   ```
+   git clone https://github.com/RT-Thread/rt-thread.git
+   ```
+
+2. Navigate to the BSP folder:
+   ```
+   cd rt-thread/bsp/nxp/imx/imx91
+   ```
+
+3. Build the BSP:
+   ```
+   scons -j 8
+   ```
+
+4. copy the `rtthread.bin` to the TFTP server working directory:
+   ```
+   cp rtthread.bin /path/to/tftp_work_dir/
+   ```
+
+### Run RT-Thread on FRDM-IMX91 with u-boot
+
+```sh
+setenv bootcmd "tftp 0x80000000 rtthread.bin; dcache flush; icache flush; go 0x80000000"
+saveenv
+reset
+```

bsp/nxp/imx/imx91/README.md

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+# for module compiling
+import os
+from building import *
+
+cwd  = GetCurrentDir()
+objs = []
+list = os.listdir(cwd)
+
+for d in list:
+    path = os.path.join(cwd, d)
+    if os.path.isfile(os.path.join(path, 'SConscript')):
+        objs = objs + SConscript(os.path.join(d, 'SConscript'))
+
+Return('objs')

bsp/nxp/imx/imx91/SConscript

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+import os
+import sys
+import rtconfig
+
+if os.getenv('RTT_ROOT'):
+    RTT_ROOT = os.getenv('RTT_ROOT')
+else:
+    RTT_ROOT = os.path.join(os.getcwd(), '..', '..', '..', '..')
+
+sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
+from building import *
+
+TARGET = 'rtthread.' + rtconfig.TARGET_EXT
+
+DefaultEnvironment(tools=[])
+env = Environment(tools = ['mingw'],
+    AS = rtconfig.AS, ASFLAGS = rtconfig.AFLAGS,
+    CC = rtconfig.CC, CFLAGS = rtconfig.CFLAGS,
+    CXX= rtconfig.CXX, CXXFLAGS = rtconfig.CFLAGS,
+    AR = rtconfig.AR, ARFLAGS = '-rc',
+    LINK = rtconfig.LINK, LINKFLAGS = rtconfig.LFLAGS)
+env.PrependENVPath('PATH', rtconfig.EXEC_PATH)
+env['ASCOM'] = env['ASPPCOM']
+env['LINKCOM'] = '$LINK -o $TARGET $LINKFLAGS $__RPATH $SOURCES $_LIBDIRFLAGS -Wl,--start-group $_LIBFLAGS -Wl,--end-group'
+
+Export('RTT_ROOT')
+Export('rtconfig')
+
+# prepare building environment
+objs = PrepareBuilding(env, RTT_ROOT)
+
+# make a building
+DoBuilding(TARGET, objs)

bsp/nxp/imx/imx91/SConstruct

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+from building import *
+
+cwd     = GetCurrentDir()
+src     = Glob('*.c') + Glob('*.cpp')
+CPPPATH = [cwd]
+
+group = DefineGroup('Applications', src, depend = [''], CPPPATH = CPPPATH)
+
+Return('group')

bsp/nxp/imx/imx91/applications/SConscript

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+/*
+ * Copyright (c) 2006-2022, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017-5-30      Bernard      the first version
+ */
+
+#include <rtthread.h>
+
+int main(int argc, char** argv)
+{
+    rt_kprintf("Hi, this is RT-Thread!!\n");
+
+    return 0;
+}

bsp/nxp/imx/imx91/applications/main.c

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+menu "Hardware Drivers Config"
+
+config BSP_USING_EARLY_CONSOLE
+    bool "Enable early console"
+    default n
+
+config BSP_USING_UART1
+    bool "Enable UART1"
+    default y
+
+config BSP_USING_GIC
+    bool "Enalbe GIC"
+    default y
+
+config BSP_USING_GICV3
+    bool "Enable GICv3"
+    default y
+
+config KERNEL_ASPACE_START
+    hex "Kernel aspace start address"
+    default 0x80100000
+
+endmenu

bsp/nxp/imx/imx91/drivers/Kconfig

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+from building import *
+
+cwd = GetCurrentDir()
+src = Glob('*.c') #+ Glob('iomux/*.c')
+# src = []
+
+CPPPATH = [cwd]
+
+objs = DefineGroup('Drivers', src, depend = [''], CPPPATH = CPPPATH)
+
+for item in os.listdir(cwd):
+    sconsfile = os.path.join(cwd, item, 'SConscript')
+    if os.path.isfile(sconsfile):
+        objs += SConscript(sconsfile)
+
+Return('objs')