Support XuanTie E906 CPU

 - Place the E906 implementation in the ports/risc-v32/gnu directory;
 - Remove code unrelated to the xuantie_smartl_fpga demo;

Author: goodnorning

…example_build/smartl_fpga/CMakeLists.txt …build/xuantie_smartl_fpga/CMakeLists.txtports/xuantie/e906/gnu/example_build/smartl_fpga/CMakeLists.txt renamed to ports/risc-v32/gnu/example_build/xuantie_smartl_fpga/CMakeLists.txt ports/xuantie/e906/gnu/example_build/smartl_fpga/CMakeLists.txt renamed to ports/risc-v32/gnu/example_build/xuantie_smartl_fpga/CMakeLists.txt

@@ -10,7 +10,6 @@ set(SRCS
     ${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
@@ -31,7 +30,7 @@ set(SRCS
 )
 
 include_directories(
-    ${CMAKE_CURRENT_LIST_DIR}/../../../../../../common/inc
+    ${CMAKE_CURRENT_LIST_DIR}/../../../../../common/inc
     ${CMAKE_CURRENT_LIST_DIR}/../../inc
     ${CMAKE_CURRENT_LIST_DIR}
     ${CMAKE_CURRENT_LIST_DIR}/boards/board_riscv_dummy/include
@@ -67,7 +66,7 @@ add_link_options(
     -Wl,-Map=${PROJECT_NAME}.map
 )
 
-link_directories(${CMAKE_CURRENT_LIST_DIR}/../../../../../../build)
+link_directories(${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)

…boards/board_riscv_dummy/include/board.h …boards/board_riscv_dummy/include/board.hports/xuantie/e906/gnu/example_build/smartl_fpga/boards/board_riscv_dummy/include/board.h renamed to ports/risc-v32/gnu/example_build/xuantie_smartl_fpga/boards/board_riscv_dummy/include/board.h ports/xuantie/e906/gnu/example_build/smartl_fpga/boards/board_riscv_dummy/include/board.h renamed to ports/risc-v32/gnu/example_build/xuantie_smartl_fpga/boards/board_riscv_dummy/include/board.h

@@ -17,7 +17,7 @@
  */
 
 /*
-   This is an example board.h for Board Compment, New Board should flow the macro defines.
+   This is an example board.h for Board Component, New Board should follow the macro defines.
 */
 
 #ifndef __BOARD_H__
@@ -44,7 +44,7 @@ extern "C" {
      · WIFI
      · BT
      · AUDIO
-    BOARD_XXX Macro descripted below should be defined if the board support.
+    BOARD_XXX Macro described below should be defined if the board support.
 */
 
 /****************************************************************************/
@@ -120,8 +120,8 @@ extern "C" {
 // UART
 
 /*
-    The total supported uart numbers on this board, 0 meas No uart support.
-    the BOARD_UART<x>_XXX, x in rang of (0, BOARD_UART_NUM - 1)
+    The total supported uart numbers on this board, 0 means No uart support.
+    the BOARD_UART<x>_XXX, x in range of (0, BOARD_UART_NUM - 1)
 */
 #ifndef BOARD_UART_NUM
 #define BOARD_UART_NUM (1)
@@ -441,4 +441,4 @@ void board_audio_init(void);
 }
 #endif
 
-#endif /* __BOARD_H__ */
+#endif /* __BOARD_H__ */

…s/board_riscv_dummy/include/csi_config.h …s/board_riscv_dummy/include/csi_config.hports/xuantie/e906/gnu/example_build/smartl_fpga/boards/board_riscv_dummy/include/csi_config.h renamed to ports/risc-v32/gnu/example_build/xuantie_smartl_fpga/boards/board_riscv_dummy/include/csi_config.h ports/xuantie/e906/gnu/example_build/smartl_fpga/boards/board_riscv_dummy/include/csi_config.h renamed to ports/risc-v32/gnu/example_build/xuantie_smartl_fpga/boards/board_riscv_dummy/include/csi_config.h

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+pushd ../../../../../
+rm -rf build
+cmake -Bbuild -GNinja -DCMAKE_TOOLCHAIN_FILE=ports/risc-v32/gnu/example_build/xuantie_smartl_fpga/xuantie_e906_gnu.cmake .
+cmake --build ./build/
+popd