Initial ESP32S2 port.

Basic blinky works but doesn't check pins.

1 files changed, 279 insertions, 0 deletions

diff --git a/ports/esp32s2/Makefile b/ports/esp32s2/Makefile
new file mode 100644
index 000000000..6fe805811
--- /dev/null
+++ b/ports/esp32s2/Makefile
@@ -0,0 +1,279 @@
+# This file is part of the MicroPython project, http://micropython.org/
+#
+# The MIT License (MIT)
+#
+# Copyright (c) 2020 Scott Shawcroft for Adafruit Industries
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+# Select the board to build for.
+ifeq ($(BOARD),)
+  $(error You must provide a BOARD parameter)
+else
+  ifeq ($(wildcard boards/$(BOARD)/.),)
+    $(error Invalid BOARD specified)
+  endif
+endif
+
+# If the build directory is not given, make it reflect the board name.
+BUILD ?= build-$(BOARD)
+
+include ../../py/mkenv.mk
+# Board-specific
+include boards/$(BOARD)/mpconfigboard.mk
+# Port-specific
+include mpconfigport.mk
+
+# CircuitPython-specific
+include $(TOP)/py/circuitpy_mpconfig.mk
+
+# qstr definitions (must come before including py.mk)
+QSTR_DEFS = qstrdefsport.h
+
+# include py core make definitions
+include $(TOP)/py/py.mk
+
+include $(TOP)/supervisor/supervisor.mk
+
+# Include make rules and variables common across CircuitPython builds.
+include $(TOP)/py/circuitpy_defns.mk
+
+CROSS_COMPILE = xtensa-esp32s2-elf-
+
+#######################################
+# CFLAGS
+#######################################
+
+INC += -I.
+INC += -I../..
+INC += -I$(BUILD)
+INC += -I$(BUILD)/genhdr
+INC += -I./boards
+INC += -I./boards/$(BOARD)
+INC += -I./peripherals
+INC += -I../../lib/mp-readline
+INC += -I../../lib/tinyusb/src
+INC += -I../../supervisor/shared/usb
+INC += -Iesp-idf/components/freertos/include/freertos
+INC += -Iesp-idf/components/freertos/xtensa/include
+INC += -Iesp-idf/components/esp32s2/include
+INC += -Iesp-idf/components/xtensa/esp32s2/include
+INC += -Iesp-idf/components/esp_common/include
+INC += -Iesp-idf/components/esp_rom/include
+INC += -Iesp-idf/components/xtensa/include
+INC += -Iesp-idf/components/esp_timer/include
+INC += -Iesp-idf/components/soc/include
+INC += -Iesp-idf/components/soc/src/esp32s2/include
+INC += -Iesp-idf/components/soc/soc/include
+INC += -Iesp-idf/components/soc/soc/esp32s2/include
+INC += -Iesp-idf/components/heap/include
+INC += -Iesp-idf/components/esp_system/include
+INC += -I$(BUILD)/esp-idf/config
+
+CFLAGS += -DHAVE_CONFIG_H \
+          -DMBEDTLS_CONFIG_FILE=\"mbedtls/esp_config.h\" \
+          -DUNITY_INCLUDE_CONFIG_H -DWITH_POSIX
+
+# Make our canary value match FreeRTOS's
+CFLAGS += -DSTACK_CANARY_VALUE=0xa5a5a5a5
+
+#Debugging/Optimization
+ifeq ($(DEBUG), 1)
+  CFLAGS += -ggdb
+  # You may want to enable these flags to make setting breakpoints easier.
+  # CFLAGS += -fno-inline -fno-ipa-sra
+else
+  CFLAGS += -Os -DNDEBUG -ggdb3
+  # TODO: Test with -flto
+  ### CFLAGS += -flto
+endif
+
+CFLAGS += $(INC) -Werror -Wall -mlongcalls -std=gnu11 -Wl,--gc-sections $(BASE_CFLAGS) $(C_DEFS) $(CFLAGS_MOD) $(COPT)
+
+LDFLAGS = $(CFLAGS) -fshort-enums -Wl,-nostdlib  -Wl,-Map=$@.map -Wl,-cref
+LDFLAGS += -L$(BUILD)/esp-idf/esp-idf/esp32s2 \
+           -Tesp32s2_out.ld \
+           -L$(BUILD)/esp-idf/esp-idf/esp32s2/ld \
+           -Tesp32s2.project.ld \
+           -Lesp-idf/components/esp32s2/ld \
+           -Tesp32s2.peripherals.ld \
+           -Lesp-idf/components/esp_rom/esp32s2/ld \
+           -Tesp32s2.rom.ld \
+           -Tesp32s2.rom.libgcc.ld \
+           -Tesp32s2.rom.newlib-data.ld \
+           -Tesp32s2.rom.newlib-funcs.ld \
+           -Tesp32s2.rom.spiflash.ld
+LIBS := -lgcc -lc
+
+#
+
+LDFLAGS +=  -Wl,-Bstatic \
+			-Wl,--no-warn-mismatch \
+			-Wl,--build-id=none \
+			-fno-rtti
+
+# Use toolchain libm if we're not using our own.
+ifndef INTERNAL_LIBM
+LIBS += -lm
+endif
+
+# TinyUSB defines
+CFLAGS += -DCFG_TUSB_MCU=OPT_MCU_ESP32S2 -DCFG_TUSB_OS=OPT_OS_FREERTOS -DCFG_TUD_CDC_RX_BUFSIZE=1024 -DCFG_TUD_CDC_TX_BUFSIZE=1024 -DCFG_TUD_MSC_BUFSIZE=4096 -DCFG_TUD_MIDI_RX_BUFSIZE=128 -DCFG_TUD_MIDI_TX_BUFSIZE=128
+
+
+######################################
+# source
+######################################
+
+
+SRC_C += \
+	background.c \
+	fatfs_port.c \
+	mphalport.c \
+	boards/$(BOARD)/board.c \
+	boards/$(BOARD)/pins.c \
+	lib/libc/string0.c \
+	lib/mp-readline/readline.c \
+	lib/oofatfs/ff.c \
+	lib/oofatfs/option/ccsbcs.c \
+	lib/timeutils/timeutils.c \
+	lib/utils/buffer_helper.c \
+	lib/utils/context_manager_helpers.c \
+	lib/utils/interrupt_char.c \
+	lib/utils/pyexec.c \
+	lib/utils/stdout_helpers.c \
+	lib/utils/sys_stdio_mphal.c \
+	peripherals/pins.c \
+	supervisor/shared/memory.c
+
+ifneq ($(USB),FALSE)
+SRC_C += lib/tinyusb/src/portable/espressif/esp32s2/dcd_esp32s2.c
+endif
+
+SRC_S =
+
+SRC_COMMON_HAL_EXPANDED = $(addprefix shared-bindings/, $(SRC_COMMON_HAL)) \
+                          $(addprefix shared-bindings/, $(SRC_BINDINGS_ENUMS)) \
+                          $(addprefix common-hal/, $(SRC_COMMON_HAL))
+
+SRC_SHARED_MODULE_EXPANDED = $(addprefix shared-bindings/, $(SRC_SHARED_MODULE)) \
+                             $(addprefix shared-module/, $(SRC_SHARED_MODULE)) \
+                             $(addprefix shared-module/, $(SRC_SHARED_MODULE_INTERNAL))
+
+
+ifneq ($(FROZEN_MPY_DIR),)
+FROZEN_MPY_PY_FILES := $(shell find -L $(FROZEN_MPY_DIR) -type f -name '*.py')
+FROZEN_MPY_MPY_FILES := $(addprefix $(BUILD)/,$(FROZEN_MPY_PY_FILES:.py=.mpy))
+endif
+
+OBJ += $(PY_O) $(SUPERVISOR_O) $(addprefix $(BUILD)/, $(SRC_C:.c=.o))
+OBJ += $(addprefix $(BUILD)/, $(SRC_COMMON_HAL_EXPANDED:.c=.o))
+OBJ += $(addprefix $(BUILD)/, $(SRC_SHARED_MODULE_EXPANDED:.c=.o))
+ifeq ($(INTERNAL_LIBM),1)
+OBJ += $(addprefix $(BUILD)/, $(SRC_LIBM:.c=.o))
+endif
+OBJ += $(addprefix $(BUILD)/, $(SRC_S:.S=.o))
+OBJ += $(addprefix $(BUILD)/, $(SRC_MOD:.c=.o))
+
+$(BUILD)/$(FATFS_DIR)/ff.o: COPT += -Os
+$(filter $(PY_BUILD)/../extmod/vfs_fat_%.o, $(PY_O)): COPT += -Os
+
+# List of sources for qstr extraction
+SRC_QSTR += $(SRC_C) $(SRC_SUPERVISOR) $(SRC_MOD) $(SRC_COMMON_HAL_EXPANDED) $(SRC_SHARED_MODULE_EXPANDED)
+# Sources that only hold QSTRs after pre-processing.
+SRC_QSTR_PREPROCESSOR +=
+
+# IDF build commands
+IDF_PATH = $(realpath ./esp-idf)
+# create the directory
+$(BUILD)/esp-idf:
+	$(Q)$(MKDIR) -p $@
+
+# create the config headers
+$(BUILD)/esp-idf/config/sdkconfig.h: boards/$(BOARD)/sdkconfig | $(BUILD)/esp-idf
+	IDF_PATH=$(IDF_PATH) cmake -S . -B $(BUILD)/esp-idf -DSDKCONFIG=$(BUILD)/esp-idf/sdkconfig -DSDKCONFIG_DEFAULTS="sdkconfig.defaults;boards/$(BOARD)/sdkconfig" -DCMAKE_TOOLCHAIN_FILE=$IDF_PATH/tools/cmake/toolchain-esp32s2.cmake -DIDF_TARGET=esp32s2 -GNinja
+
+# build a lib
+# Adding -d explain -j 1 -v to the ninja line will output debug info
+$(BUILD)/esp-idf/esp-idf/%.a: $(BUILD)/esp-idf/config/sdkconfig.h
+	ninja -C $(BUILD)/esp-idf esp-idf/$*.a
+
+$(BUILD)/esp-idf/esp-idf/esp32s2/esp32s2_out.ld: $(BUILD)/esp-idf/config/sdkconfig.h
+	ninja -C $(BUILD)/esp-idf esp-idf/esp32s2/esp32s2_out.ld
+
+$(BUILD)/esp-idf/esp-idf/esp32s2/ld/esp32s2.project.ld: $(BUILD)/esp-idf/config/sdkconfig.h
+	ninja -C $(BUILD)/esp-idf esp-idf/esp32s2/ld/esp32s2.project.ld
+
+
+$(BUILD)/esp-idf/partition_table/partition-table.bin: $(BUILD)/esp-idf/config/sdkconfig.h
+	IDF_PATH=$(IDF_PATH) ninja -C $(BUILD)/esp-idf partition_table/partition-table.bin
+
+$(BUILD)/esp-idf/bootloader/bootloader.bin: $(BUILD)/esp-idf/config/sdkconfig.h
+	ninja -C $(BUILD)/esp-idf bootloader/bootloader.bin
+
+# run menuconfig
+menuconfig: $(BUILD)/esp-idf/config
+	ninja -C $(BUILD)/esp-idf menuconfig
+	diff --old-line-format= --unchanged-line-format= sdkconfig.defaults $(BUILD)/esp-idf/sdkconfig > boards/$(BOARD)/sdkconfig || true
+
+# qstr builds include headers so we need to make sure they are up to date
+$(HEADER_BUILD)/qstr.i.last: | $(BUILD)/esp-idf/config/sdkconfig.h
+
+# Order here matters
+ESP_IDF_COMPONENTS_LINK = freertos log esp_system esp32s2 bootloader_support pthread esp_timer vfs spi_flash app_update esp_common esp32s2 heap newlib driver xtensa soc esp_ringbuf #
+
+ESP_IDF_COMPONENTS_INCLUDE = driver freertos log soc
+
+INC += $(foreach component, $(ESP_IDF_COMPONENTS_INCLUDE), -Iesp-idf/components/$(component)/include)
+
+ESP_IDF_COMPONENTS_EXPANDED = $(foreach component, $(ESP_IDF_COMPONENTS_LINK), $(BUILD)/esp-idf/esp-idf/$(component)/lib$(component).a)
+BINARY_BLOBS = esp-idf/components/xtensa/esp32s2/libhal.a
+BINARY_WIFI_BLOBS = libcoexist.a libcore.a libespnow.a libmesh.a libnet80211.a libpp.a librtc.a libsmartconfig.a libphy.a
+BINARY_BLOBS += $(addprefix esp-idf/components/esp_wifi/lib/esp32s2/, $(BINARY_WIFI_BLOBS))
+
+ESP_IDF_COMPONENTS_EXPANDED += $(BUILD)/esp-idf/esp-idf/soc/soc/esp32s2/libsoc_esp32s2.a esp-idf/components/xtensa/esp32s2/libhal.a
+ESP_AUTOGEN_LD = $(BUILD)/esp-idf/esp-idf/esp32s2/esp32s2_out.ld $(BUILD)/esp-idf/esp-idf/esp32s2/ld/esp32s2.project.ld
+
+FLASH_FLAGS = --flash_mode $(CIRCUITPY_ESP_FLASH_MODE) --flash_freq $(CIRCUITPY_ESP_FLASH_FREQ) --flash_size $(CIRCUITPY_ESP_FLASH_SIZE)
+
+all: $(BUILD)/firmware.bin
+
+$(BUILD)/firmware.elf: $(OBJ) | $(ESP_IDF_COMPONENTS_EXPANDED) $(ESP_AUTOGEN_LD)
+	$(STEPECHO) "LINK $@"
+	$(Q)$(CC) -o $@ $(LDFLAGS) $^ $(ESP_IDF_COMPONENTS_EXPANDED) $(BINARY_BLOBS) build-$(BOARD)/esp-idf/esp-idf/newlib/libnewlib.a -u newlib_include_pthread_impl
+	# $(Q)$(SIZE) $@ | $(PYTHON3) $(TOP)/tools/build_memory_info.py $(BUILD)/esp-idf/esp-idf/esp32s2/esp32s2_out.ld
+
+$(BUILD)/circuitpython-firmware.bin: $(BUILD)/firmware.elf
+	$(STEPECHO) "Create $@"
+	$(Q)esptool.py --chip esp32s2 elf2image $(FLASH_FLAGS) --elf-sha256-offset 0xb0 -o $@ $^
+#	$(Q)$(OBJCOPY) -O binary $^ $@
+#   $(Q)$(OBJCOPY) -O binary -j .vectors -j .text -j .data $^ $@
+
+$(BUILD)/firmware.bin: $(BUILD)/esp-idf/partition_table/partition-table.bin $(BUILD)/esp-idf/bootloader/bootloader.bin $(BUILD)/circuitpython-firmware.bin
+	$(Q)$(PYTHON) ../../tools/join_bins.py $@ 0x1000 $(BUILD)/esp-idf/bootloader/bootloader.bin 0x8000 $(BUILD)/esp-idf/partition_table/partition-table.bin 0x10000 $(BUILD)/circuitpython-firmware.bin
+
+flash: $(BUILD)/firmware.bin
+	esptool.py --chip esp32s2 -p /dev/tty.SLAB_USBtoUART -b 460800 --before=default_reset --after=hard_reset write_flash $(FLASH_FLAGS) 0x0000 $^
+
+include $(TOP)/py/mkrules.mk
+
+# Print out the value of a make variable.
+# https://stackoverflow.com/questions/16467718/how-to-print-out-a-variable-in-makefile
+print-%:
+	@echo $* = $($*)