arch/arm/rtl8721f: bring up minimal NSH (P1)

Wire the RTL8721F km4tz core up to a working NuttShell:

- irq.h: renumber the KM4TZ external vector table to the RTL8721F
  APIRQn map (UART_LOG=24, IPC=5, +GPIOB/C, TIMER7/8, ...).
- ameba_loguart.c: fix the LOG-UART base to 0x40810000.  The former
  0x401C6000 belongs to a different Ameba part; the wrong base bus-
  faulted on the RX interrupt-enable write while TX still worked
  (LOGUART_PutChar uses its own ROM-internal base).
- ameba_app_start.c: adjust the MPU read-only / RAM regions for the
  RTL8721F memory map and seed the RTC on first power-on so the
  SDM32K-clocked SYSTIMER comes up (mirrors the SDK app_rtc_init).
- ameba_ipc.c: move the km4tz<->km4ns IPC to APIRQn 5 (IPC_CPU0).
- ameba_board.mk: pull in fwlib ameba_rtc.c for the RTC_* symbols.
- defconfig: RTL8721F RAM map, enable TIMER/TIMER_ARCH/ARMV8M_SYSTICK
  for a live system tick, and drop the WiFi/NET stack for now.
- scripts/Make.defs: use the RTL8721F_NOR flash profile.

Boots cleanly to nsh> on hardware; tick, RX and builtin apps verified.

Signed-off-by: dechao_gong <dechao_gong@realsil.com.cn>

boards/arm/rtl8721f/rtl8721f_evb/configs/nsh/defconfig

@@ -20,56 +20,19 @@ CONFIG_DEBUG_FEATURES=y
 CONFIG_DEBUG_FULLOPT=y
 CONFIG_DEBUG_SYMBOLS=y
 CONFIG_DEFAULT_TASK_STACKSIZE=4096
-CONFIG_DRIVERS_IEEE80211=y
-CONFIG_DRIVERS_WIRELESS=y
-CONFIG_EXAMPLES_DHCPD=y
 CONFIG_EXAMPLES_HELLO=y
 CONFIG_FS_PROCFS=y
 CONFIG_FS_TMPFS=y
 CONFIG_IDLETHREAD_STACKSIZE=4096
 CONFIG_INIT_ENTRYPOINT="nsh_main"
-CONFIG_IOB_BUFSIZE=512
-CONFIG_IOB_NBUFFERS=100
-CONFIG_IOB_NCHAINS=36
-CONFIG_IOB_THROTTLE=40
-CONFIG_LIBC_MEMFD_ERROR=y
 CONFIG_MM_DEFAULT_ALIGNMENT=32
-CONFIG_NET=y
-CONFIG_NETDB_DNSCLIENT=y
-CONFIG_NETDEV_LATEINIT=y
-CONFIG_NETDEV_WIRELESS_IOCTL=y
-CONFIG_NETINIT_DHCPC=y
-CONFIG_NETINIT_THREAD=y
-CONFIG_NETINIT_WAPI_PASSPHRASE="YOUR_WIFI_PASSWORD"
-CONFIG_NETINIT_WAPI_SSID="YOUR_WIFI_SSID"
-CONFIG_NETUTILS_DHCPD=y
-CONFIG_NETUTILS_DHCPD_ROUTERIP=0xc0a80401
-CONFIG_NETUTILS_DHCPD_STARTIP=0xc0a80402
-CONFIG_NETUTILS_IPERF=y
-CONFIG_NET_ARP_IPIN=y
-CONFIG_NET_BROADCAST=y
-CONFIG_NET_ETH_PKTSIZE=1514
-CONFIG_NET_ICMP_SOCKET=y
-CONFIG_NET_RECV_BUFSIZE=10000
-CONFIG_NET_SEND_BUFSIZE=16384
-CONFIG_NET_TCP=y
-CONFIG_NET_TCP_DELAYED_ACK=y
-CONFIG_NET_TCP_KEEPALIVE=y
-CONFIG_NET_TCP_NOTIFIER=y
-CONFIG_NET_TCP_OUT_OF_ORDER=y
-CONFIG_NET_TCP_OUT_OF_ORDER_BUFSIZE=10000
-CONFIG_NET_TCP_WRITE_BUFFERS=y
-CONFIG_NET_UDP=y
 CONFIG_NSH_BUILTIN_APPS=y
-CONFIG_NSH_DISABLE_VCONFIG=y
 CONFIG_NSH_FILEIOSIZE=512
 CONFIG_NSH_READLINE=y
 CONFIG_PREALLOC_TIMERS=4
-CONFIG_RAM_SIZE=262144
-CONFIG_RAM_START=0x30008000
+CONFIG_RAM_SIZE=401408
+CONFIG_RAM_START=0x20006000
 CONFIG_RR_INTERVAL=200
-CONFIG_RTL8721F_FLASH_FS=y
-CONFIG_RTL8721F_WIFI=y
 CONFIG_SCHED_HPWORK=y
 CONFIG_SCHED_HPWORKPRIORITY=192
 CONFIG_SCHED_LPWORK=y
@@ -78,13 +41,8 @@ CONFIG_STACK_COLORATION=y
 CONFIG_START_DAY=16
 CONFIG_START_MONTH=6
 CONFIG_START_YEAR=2026
-CONFIG_SYSTEM_DHCPC_RENEW=y
 CONFIG_SYSTEM_NSH=y
 CONFIG_SYSTEM_NSH_STACKSIZE=2500
-CONFIG_SYSTEM_PING=y
 CONFIG_TIMER=y
 CONFIG_TIMER_ARCH=y
 CONFIG_USEC_PER_TICK=1000
-CONFIG_WIRELESS=y
-CONFIG_WIRELESS_WAPI=y
-CONFIG_WIRELESS_WAPI_CMDTOOL=y

boards/arm/rtl8721f/rtl8721f_evb/scripts/Make.defs

@@ -29,5 +29,5 @@ include $(TOPDIR)/arch/arm/src/rtl8721f/ameba_board.mk
 
 # Flashing via the SDK AmebaFlash.py (make flash AMEBA_PORT=/dev/ttyUSB0)
 
-AMEBA_FLASH_PROFILE = RTL8721F
+AMEBA_FLASH_PROFILE = RTL8721F_NOR
 include $(TOPDIR)/tools/ameba/Config.mk