boards/risc-v/esp32p4-tab5: add support for Python deconfig

Adds support for Python on M5 Stack ESP32-P4 Tab5 board.
This board runs on P4 chip revision v1.3 and needs special changes in linker
script.

Signed-off-by: Filipe Cavalcanti <filipe.cavalcanti@espressif.com>

boards/risc-v/esp32p4/common/scripts/esp32p4_sections.ld

@@ -338,9 +338,9 @@ SECTIONS
     _dram_start = ABSOLUTE(.);
     _sdata = ABSOLUTE(.);
     _data_start_low = ABSOLUTE(.);
-    *(.data)
-    *(.data.*)
-    *(.gnu.linkonce.d.*)
+    EXCLUDE_FILE(*libpython3.13.a) *(.data)
+    EXCLUDE_FILE(*libpython3.13.a) *(.data.*)
+    EXCLUDE_FILE(*libpython3.13.a) *(.gnu.linkonce.d.*)
     *(.data1)
     __global_pointer$ = . + 0x800;
     *(.sdata)
@@ -465,7 +465,7 @@ SECTIONS
   .dram1.data :
   {
     _data_start_high = ABSOLUTE(.);
-    *(.data .data.*)
+    *libpython3.13.a:(.data .data.* .gnu.linkonce.d.*)
     *(.dram1 .dram1.*)
     _data_end_high = ABSOLUTE(.);
   } > sram_high
@@ -661,11 +661,11 @@ SECTIONS
     *(.sbss2.*)
     *(.gnu.linkonce.sb2.*)
     *(.dynbss)
-    *(.bss)
-    *(.bss.*)
+    EXCLUDE_FILE(*libpython3.13.a) *(.bss)
+    EXCLUDE_FILE(*libpython3.13.a) *(.bss.*)
     *(.share.mem)
-    *(.gnu.linkonce.b.*)
-    *(COMMON)
+    EXCLUDE_FILE(*libpython3.13.a) *(.gnu.linkonce.b.*)
+    EXCLUDE_FILE(*libpython3.13.a) *(COMMON)
 
     . = ALIGN(4);
     _ebss = ABSOLUTE(.);
@@ -683,12 +683,12 @@ SECTIONS
      * ldgen places all bss-related data to mapping[dram0_bss]
      * (See components/esp_system/app.lf).
      */
-    *(.bss .bss.*)
+    EXCLUDE_FILE(*libpython3.13.a) *(.bss .bss.*)
     *(.dynbss .dynsbss .gnu.linkonce.b .gnu.linkonce.b.* .gnu.linkonce.sb .gnu.linkonce.sb.* .gnu.linkonce.sb2 .gnu.linkonce.sb2.* .sbss .sbss.* .sbss2 .sbss2.* .scommon .share.mem)
 #ifndef CONFIG_ESPRESSIF_SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY
     *(.ext_ram.bss .ext_ram.bss.*)
 #endif
-    *(COMMON)
+    EXCLUDE_FILE(*libpython3.13.a) *(COMMON)
 
  . = ALIGN(4);
  _bss_end_high = ABSOLUTE(.);
@@ -699,7 +699,10 @@ SECTIONS
   .ext_ram.bss (NOLOAD) :
   {
     _ext_ram_bss_start = ABSOLUTE(.);
+    *(.PyRuntime)
     *(.ext_ram.bss .ext_ram.bss.*)
+    *libpython3.13.a:(*.PyRuntime)
+    *libpython3.13.a:(.bss .bss.*)
     . = ALIGN(4);
     _ext_ram_bss_end = ABSOLUTE(.);
   } > ext_ram_seg

boards/risc-v/esp32p4/esp32p4-tab5/configs/python/defconfig

@@ -0,0 +1,101 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_NSH_ARGCAT is not set
+# CONFIG_NSH_CMDOPT_HEXDUMP is not set
+CONFIG_ALLOW_BSD_COMPONENTS=y
+CONFIG_ARCH="risc-v"
+CONFIG_ARCH_BOARD="esp32p4-tab5"
+CONFIG_ARCH_BOARD_COMMON=y
+CONFIG_ARCH_BOARD_ESP32P4_TAB5=y
+CONFIG_ARCH_CHIP="esp32p4"
+CONFIG_ARCH_CHIP_ESP32P4=y
+CONFIG_ARCH_INTERRUPTSTACK=2048
+CONFIG_ARCH_IRQ_TO_NDX=y
+CONFIG_ARCH_MINIMAL_VECTORTABLE_DYNAMIC=y
+CONFIG_ARCH_NUSER_INTERRUPTS=17
+CONFIG_ARCH_RISCV=y
+CONFIG_BOARDCTL_RESET=y
+CONFIG_BOARDCTL_ROMDISK=y
+CONFIG_BOARD_LOOPSPERMSEC=15000
+CONFIG_BUILTIN=y
+CONFIG_CRYPTO_MBEDTLS=y
+CONFIG_DEV_URANDOM=y
+CONFIG_ESP32P4_REV_MIN_100=y
+CONFIG_ESP32P4_SELECTS_REV_LESS_V3=y
+CONFIG_ESPRESSIF_FLASH_16M=y
+CONFIG_ESPRESSIF_FLASH_MODE_QIO=y
+CONFIG_ESPRESSIF_GPIO_IRQ=y
+CONFIG_ESPRESSIF_I2C0=y
+CONFIG_ESPRESSIF_I2C0_SCLPIN=32
+CONFIG_ESPRESSIF_I2C0_SDAPIN=31
+CONFIG_ESPRESSIF_MERGE_BINS=y
+CONFIG_ESPRESSIF_SPIFLASH=y
+CONFIG_ESPRESSIF_SPIFLASH_SMARTFS=y
+CONFIG_ESPRESSIF_SPIRAM=y
+CONFIG_ESPRESSIF_SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY=y
+CONFIG_ESPRESSIF_STORAGE_MTD_OFFSET=0xFCA000
+CONFIG_ESPRESSIF_STORAGE_MTD_SIZE=0x36000
+CONFIG_ESPRESSIF_USBSERIAL=y
+CONFIG_EVENT_FD=y
+CONFIG_EXPERIMENTAL=y
+CONFIG_FS_HEAPBUF_SECTION=".ext_ram.bss.buf"
+CONFIG_FS_HEAPSIZE=2097152
+CONFIG_FS_LARGEFILE=y
+CONFIG_FS_PROCFS=y
+CONFIG_FS_ROMFS=y
+CONFIG_FS_TMPFS=y
+CONFIG_IDLETHREAD_STACKSIZE=2048
+CONFIG_INIT_ENTRYPOINT="nsh_main"
+CONFIG_INIT_STACKSIZE=3072
+CONFIG_INTELHEX_BINARY=y
+CONFIG_INTERPRETERS_CPYTHON=y
+CONFIG_INTERPRETERS_CPYTHON_ENABLE_PIP=y
+CONFIG_INTERPRETERS_CPYTHON_PYTHONPATH="/data"
+CONFIG_INTERPRETERS_CPYTHON_STACKSIZE=512000
+CONFIG_LIBC_DLFCN=y
+CONFIG_LIBC_EXECFUNCS=y
+CONFIG_LIBC_LOCALE=y
+CONFIG_LIBC_LOCALE_GETTEXT=y
+CONFIG_LIBC_PERROR_STDOUT=y
+CONFIG_LIBC_STRERROR=y
+CONFIG_LIB_LIBFFI=y
+CONFIG_LIB_ZLIB=y
+CONFIG_LINE_MAX=200
+CONFIG_MM_KERNEL_HEAP=y
+CONFIG_MM_REGIONS=2
+CONFIG_NAME_MAX=48
+CONFIG_NFILE_DESCRIPTORS_PER_BLOCK=6
+CONFIG_NSH_BUILTIN_APPS=y
+CONFIG_NSH_DISABLE_LOSMART=y
+CONFIG_NSH_FILEIOSIZE=512
+CONFIG_NSH_READLINE=y
+CONFIG_NSH_STRERROR=y
+CONFIG_PIPES=y
+CONFIG_PREALLOC_TIMERS=0
+CONFIG_PSEUDOFS_SOFTLINKS=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_BACKTRACE=y
+CONFIG_SCHED_WAITPID=y
+CONFIG_SCHED_WORKQUEUE=y
+CONFIG_SMARTFS_MAXNAMLEN=48
+CONFIG_STACK_COLORATION=y
+CONFIG_START_DAY=29
+CONFIG_START_MONTH=11
+CONFIG_START_YEAR=2019
+CONFIG_SYSTEM_DUMPSTACK=y
+CONFIG_SYSTEM_FLASH_ERASEALL=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_SYSTEM_SYSTEM=y
+CONFIG_SYSTEM_SYSTEM_STACKSIZE=4096
+CONFIG_TESTING_FSTEST=y
+CONFIG_TESTING_FSTEST_MOUNTPT="/mnt"
+CONFIG_TESTING_HEAP=y
+CONFIG_TIMER=y
+CONFIG_TIMER_FD=y
+CONFIG_TLS_NELEM=4
+CONFIG_TLS_TASK_NELEM=4

boards/risc-v/esp32p4/esp32p4-tab5/src/esp32p4_bringup.c

@@ -34,6 +34,10 @@
 
 #include "espressif/esp_start.h"
 
+#ifdef CONFIG_ESPRESSIF_SPIFLASH
+#  include "esp_board_spiflash.h"
+#endif
+
 #ifdef CONFIG_I2C_DRIVER
 #  include "esp_board_i2c.h"
 #endif
@@ -73,6 +77,14 @@ int esp_bringup(void)
     }
 #endif
 
+#ifdef CONFIG_ESPRESSIF_SPIFLASH
+  ret = board_spiflash_init();
+  if (ret)
+    {
+      syslog(LOG_ERR, "ERROR: Failed to initialize SPI Flash\n");
+    }
+#endif
+
 #ifdef CONFIG_I2C_DRIVER
   /* Configure I2C peripheral interfaces */
 
@@ -83,6 +95,16 @@ int esp_bringup(void)
     }
 #endif
 
+#ifdef CONFIG_FS_TMPFS
+  /* Mount the tmpfs file system */
+
+  ret = nx_mount(NULL, CONFIG_LIBC_TMPDIR, "tmpfs", 0, NULL);
+  if (ret < 0)
+    {
+      _err("Failed to mount tmpfs at %s: %d\n", CONFIG_LIBC_TMPDIR, ret);
+    }
+#endif
+
   /* If we got here then perhaps not all initialization was successful, but
    * at least enough succeeded to bring-up NSH with perhaps reduced
    * capabilities.