Support XuanTie E906 CPU.

 - add ThreadX porting codes for XuanTie E906.
 - add example for XuanTie E906 running on QEMU smartl.

Author: goodnorning

ports/xuantie/e906/gnu/CMakeLists.txt

@@ -0,0 +1,17 @@
+
+target_sources(${PROJECT_NAME}
+    PRIVATE
+    # {{BEGIN_TARGET_SOURCES}}
+	${CMAKE_CURRENT_LIST_DIR}/src/tx_port.c
+	${CMAKE_CURRENT_LIST_DIR}/src/tx_thread_context.S
+	${CMAKE_CURRENT_LIST_DIR}/src/tx_thread_interrupt_control.S
+	${CMAKE_CURRENT_LIST_DIR}/src/tx_thread_schedule.S
+	${CMAKE_CURRENT_LIST_DIR}/src/tx_thread_system_return.S
+	${CMAKE_CURRENT_LIST_DIR}/src/tx_timer_interrupt.c
+    # {{END_TARGET_SOURCES}}
+)
+
+target_include_directories(${PROJECT_NAME}
+    PUBLIC
+    ${CMAKE_CURRENT_LIST_DIR}/inc
+)

ports/xuantie/e906/gnu/example_build/smartl_fpga/CMakeLists.txt

@@ -0,0 +1,78 @@
+cmake_minimum_required(VERSION 3.15 FATAL_ERROR)
+
+project(demo_threadx
+    LANGUAGES C ASM
+)
+
+set(SRCS
+    ${CMAKE_CURRENT_LIST_DIR}/demo_threadx.c
+    ${CMAKE_CURRENT_LIST_DIR}/pre_main.c
+    ${CMAKE_CURRENT_LIST_DIR}/boards/board_riscv_dummy/src/uart/board_uart.c
+    ${CMAKE_CURRENT_LIST_DIR}/boards/board_riscv_dummy/src/board_init.c
+    ${CMAKE_CURRENT_LIST_DIR}/components/csi/csi2/src/csi_misc.c
+    ${CMAKE_CURRENT_LIST_DIR}/components/csi/csi2/src/csi_ringbuf.c
+    ${CMAKE_CURRENT_LIST_DIR}/components/libc_threadx/mini_printf.c
+    ${CMAKE_CURRENT_LIST_DIR}/components/libc_threadx/newlib_stub.c
+    ${CMAKE_CURRENT_LIST_DIR}/components/chip_riscv_dummy/src/arch/e906fdp/startup.S
+    ${CMAKE_CURRENT_LIST_DIR}/components/chip_riscv_dummy/src/arch/e906fdp/vectors.S
+    ${CMAKE_CURRENT_LIST_DIR}/components/chip_riscv_dummy/src/arch/e906fdp/system.c
+    ${CMAKE_CURRENT_LIST_DIR}/components/chip_riscv_dummy/src/arch/e906fdp/trap_c.c
+    ${CMAKE_CURRENT_LIST_DIR}/components/chip_riscv_dummy/src/drivers/dw_uart_ll.c
+    ${CMAKE_CURRENT_LIST_DIR}/components/chip_riscv_dummy/src/drivers/uart.c
+    ${CMAKE_CURRENT_LIST_DIR}/components/chip_riscv_dummy/src/sys/devices.c
+    ${CMAKE_CURRENT_LIST_DIR}/components/chip_riscv_dummy/src/sys/feature.c
+    ${CMAKE_CURRENT_LIST_DIR}/components/chip_riscv_dummy/src/sys/irq_port.c
+    ${CMAKE_CURRENT_LIST_DIR}/components/chip_riscv_dummy/src/sys/irq.c
+    ${CMAKE_CURRENT_LIST_DIR}/components/chip_riscv_dummy/src/sys/pre_main.c
+    ${CMAKE_CURRENT_LIST_DIR}/components/chip_riscv_dummy/src/sys/sys_clk.c
+    ${CMAKE_CURRENT_LIST_DIR}/components/chip_riscv_dummy/src/sys/target_get.c
+    ${CMAKE_CURRENT_LIST_DIR}/components/chip_riscv_dummy/src/sys/tick.c
+    ${CMAKE_CURRENT_LIST_DIR}/components/chip_riscv_dummy/src/sys/weak.c
+)
+
+include_directories(
+    ${CMAKE_CURRENT_LIST_DIR}/../../../../../../common/inc
+    ${CMAKE_CURRENT_LIST_DIR}/../../inc
+    ${CMAKE_CURRENT_LIST_DIR}
+    ${CMAKE_CURRENT_LIST_DIR}/boards/board_riscv_dummy/include
+    ${CMAKE_CURRENT_LIST_DIR}/components/csi/csi2/include
+    ${CMAKE_CURRENT_LIST_DIR}/components/libc_threadx/include
+    ${CMAKE_CURRENT_LIST_DIR}/components/libc_threadx/compilers/gcc
+    ${CMAKE_CURRENT_LIST_DIR}/components/chip_riscv_dummy/include
+    ${CMAKE_CURRENT_LIST_DIR}/components/chip_riscv_dummy/include/asm
+)
+
+add_compile_options(
+    -Os -g -Wno-main
+    -Wpointer-arith -Wno-undef -ffunction-sections -fdata-sections -fno-inline-functions -fno-builtin -fno-strict-aliasing
+    -DCONFIG_SUPPORT_TSPEND=1
+    -DCONFIG_ARCH_MAINSTACK=4096
+    -DCONFIG_ARCH_INTERRUPTSTACK=4096
+    -DCONFIG_SUPPORT_IRQ_NESTED=1
+    -DCONFIG_INTC_CLIC=1
+    -DCONFIG_INTC_CLINT=1
+    -DCONFIG_XIP=1
+    -DCONFIG_LIBC_MINI_PRINTF_SUPPORT=1
+    -DCONFIG_SYSTICK_HZ=100
+    -DCONFIG_BOARD_SMARTL_EVB=1
+    -DCONFIG_CPU_XUANTIE_E906FDP=1
+    -DCONFIG_KERNEL_THREADX=1
+    -DTX_INCLUDE_USER_DEFINE_FILE
+)
+
+add_link_options(
+    -nostartfiles -Wl,--gc-sections
+    -T${CMAKE_CURRENT_LIST_DIR}/components/chip_riscv_dummy/gcc_flash_smartl.ld
+    -Wl,-zmax-page-size=1024
+    -Wl,-Map=${PROJECT_NAME}.map
+)
+
+link_directories(${CMAKE_CURRENT_LIST_DIR}/../../../../../../build)
+add_executable(${PROJECT_NAME} ${SRCS})
+set_target_properties(${PROJECT_NAME} PROPERTIES OUTPUT_NAME "${PROJECT_NAME}.elf")
+target_link_libraries(${PROJECT_NAME} PRIVATE threadx)
+
+add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD
+    COMMAND ${OBJDUMP} -d $<TARGET_FILE:${PROJECT_NAME}> > ${PROJECT_NAME}.asm
+    COMMENT "Generating ASM disassembly files"
+)