esp32: Add support to build using IDF with cmake.

This commit adds support for building the esp32 port with cmake, and in
particular it builds MicroPython as a component within the ESP-IDF.  Using
cmake and the ESP-IDF build infrastructure makes it much easier to maintain
the port, especially with the various new ESP32 MCUs and their required
toolchains.

Signed-off-by: Damien George <damien@micropython.org>

8 files changed, 40 insertions, 0 deletions

diff --git a/ports/esp32/boards/GENERIC/mpconfigboard.cmake b/ports/esp32/boards/GENERIC/mpconfigboard.cmake
new file mode 100644
index 000000000..8fea52455
--- /dev/null
+++ b/ports/esp32/boards/GENERIC/mpconfigboard.cmake
@@ -0,0 +1,2 @@
+set(SDKCONFIG_DEFAULTS boards/sdkconfig.base)
+set(MICROPY_FROZEN_MANIFEST ${MICROPY_PORT_DIR}/boards/manifest.py)
diff --git a/ports/esp32/boards/GENERIC_D2WD/mpconfigboard.cmake b/ports/esp32/boards/GENERIC_D2WD/mpconfigboard.cmake
new file mode 100644
index 000000000..4e23666f1
--- /dev/null
+++ b/ports/esp32/boards/GENERIC_D2WD/mpconfigboard.cmake
@@ -0,0 +1,6 @@
+set(SDKCONFIG_DEFAULTS
+    boards/sdkconfig.base
+    boards/GENERIC_D2WD/sdkconfig.board
+)
+
+set(MICROPY_FROZEN_MANIFEST ${MICROPY_PORT_DIR}/boards/manifest.py)
diff --git a/ports/esp32/boards/GENERIC_D2WD/sdkconfig.board b/ports/esp32/boards/GENERIC_D2WD/sdkconfig.board
new file mode 100644
index 000000000..367283ded
--- /dev/null
+++ b/ports/esp32/boards/GENERIC_D2WD/sdkconfig.board
@@ -0,0 +1,5 @@
+CONFIG_ESPTOOLPY_FLASHMODE_DIO=y
+CONFIG_ESPTOOLPY_FLASHFREQ_40M=y
+CONFIG_ESPTOOLPY_FLASHSIZE_2MB=y
+CONFIG_PARTITION_TABLE_CUSTOM=y
+CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions-2MiB.csv"
diff --git a/ports/esp32/boards/GENERIC_OTA/mpconfigboard.cmake b/ports/esp32/boards/GENERIC_OTA/mpconfigboard.cmake
new file mode 100644
index 000000000..7b1e14600
--- /dev/null
+++ b/ports/esp32/boards/GENERIC_OTA/mpconfigboard.cmake
@@ -0,0 +1,6 @@
+set(SDKCONFIG_DEFAULTS
+    boards/sdkconfig.base
+    boards/GENERIC_OTA/sdkconfig.board
+)
+
+set(MICROPY_FROZEN_MANIFEST ${MICROPY_PORT_DIR}/boards/manifest.py)
diff --git a/ports/esp32/boards/GENERIC_OTA/sdkconfig.board b/ports/esp32/boards/GENERIC_OTA/sdkconfig.board
index b0ed171d8..ca1f4276f 100644
--- a/ports/esp32/boards/GENERIC_OTA/sdkconfig.board
+++ b/ports/esp32/boards/GENERIC_OTA/sdkconfig.board
@@ -1,4 +1,6 @@
 CONFIG_BOOTLOADER_APP_ROLLBACK_ENABLE=y
+CONFIG_PARTITION_TABLE_CUSTOM=y
+CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions-ota.csv"
 
 # ESP-IDF v3:
 CONFIG_APP_ROLLBACK_ENABLE=y
diff --git a/ports/esp32/boards/GENERIC_SPIRAM/mpconfigboard.cmake b/ports/esp32/boards/GENERIC_SPIRAM/mpconfigboard.cmake
new file mode 100644
index 000000000..bb441d9eb
--- /dev/null
+++ b/ports/esp32/boards/GENERIC_SPIRAM/mpconfigboard.cmake
@@ -0,0 +1,6 @@
+set(SDKCONFIG_DEFAULTS
+    boards/sdkconfig.base
+    boards/sdkconfig.spiram
+)
+
+set(MICROPY_FROZEN_MANIFEST ${MICROPY_PORT_DIR}/boards/manifest.py)
diff --git a/ports/esp32/boards/TINYPICO/mpconfigboard.cmake b/ports/esp32/boards/TINYPICO/mpconfigboard.cmake
new file mode 100644
index 000000000..990e3e035
--- /dev/null
+++ b/ports/esp32/boards/TINYPICO/mpconfigboard.cmake
@@ -0,0 +1,8 @@
+set(SDKCONFIG_DEFAULTS
+    boards/sdkconfig.base
+    boards/sdkconfig.240mhz
+    boards/sdkconfig.spiram
+    boards/TINYPICO/sdkconfig.board
+)
+
+set(MICROPY_FROZEN_MANIFEST ${MICROPY_BOARD_DIR}/manifest.py)
diff --git a/ports/esp32/boards/sdkconfig.base b/ports/esp32/boards/sdkconfig.base
index 67e2424a1..de6e42c8f 100644
--- a/ports/esp32/boards/sdkconfig.base
+++ b/ports/esp32/boards/sdkconfig.base
@@ -51,3 +51,8 @@ CONFIG_PPP_SUPPORT=y
 CONFIG_PPP_PAP_SUPPORT=y
 CONFIG_PPP_CHAP_SUPPORT=y
 CONFIG_ULP_COPROC_ENABLED=y
+
+# For cmake build
+CONFIG_ESPTOOLPY_FLASHSIZE_4MB=y
+CONFIG_PARTITION_TABLE_CUSTOM=y
+CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions.csv"