Revert "Remove OpenPilot bootloader support."

This reverts commit 0150abf1bc.

Conflicts:
	src/main/target/CC3D/target.h

.travis.yml

@@ -3,6 +3,7 @@ env:
   - PUBLISHMETA=True
   - PUBLISHDOCS=True
   - TARGET=CC3D
+  - TARGET=CC3D OPBL=yes
   - TARGET=COLIBRI_RACE
   - TARGET=CHEBUZZF3
   - TARGET=CJMCU

Makefile

@@ -20,6 +20,9 @@ TARGET		?= NAZE
 # Compile-time options
 OPTIONS		?=
 
+# compile for OpenPilot BootLoader support
+OPBL ?=no
+
 # Debugger optons, must be empty or GDB
 DEBUG ?=
 
@@ -37,6 +40,9 @@ FORKNAME			 = betaflight
 
 VALID_TARGETS	 = NAZE NAZE32PRO OLIMEXINO STM32F3DISCOVERY CHEBUZZF3 CC3D CJMCU EUSTM32F103RC SPRACINGF3 PORT103R SPARKY ALIENWIIF1 ALIENWIIF3 COLIBRI_RACE MOTOLAB RMDO
 
+# Valid targets for OP BootLoader support
+OPBL_VALID_TARGETS = CC3D
+
 # Configure default flash sizes for the targets
 ifeq ($(FLASH_SIZE),)
 ifeq ($(TARGET),$(filter $(TARGET),CJMCU))
@@ -404,6 +410,16 @@ OLIMEXINO_SRC = startup_stm32f10x_md_gcc.S \
 		   $(HIGHEND_SRC) \
 		   $(COMMON_SRC)
 
+ifeq ($(OPBL),yes)
+ifneq ($(filter $(TARGET),$(OPBL_VALID_TARGETS)),)
+TARGET_FLAGS := -DOPBL $(TARGET_FLAGS)
+LD_SCRIPT	 = $(LINKER_DIR)/stm32_flash_f103_$(FLASH_SIZE)k_opbl.ld
+.DEFAULT_GOAL := binary
+else
+$(error OPBL specified with a unsupported target)
+endif
+endif
+
 CJMCU_SRC = \
 		   startup_stm32f10x_md_gcc.S \
 		   drivers/adc.c \

docs/Sonar.md

@@ -39,6 +39,8 @@ Current meter cannot be used in conjunction with Sonar.
 | ------------- | ------------- | ------------------- |
 | PB5           | PB0           | YES (3.3v input)    |
 
+Sonar support is not available when using the OpenPilot bootloader (OPBL).
+
 #### Constraints
 
 Sonar cannot be used in conjuction with SoftSerial or Parallel PWM.

docs/development/Building in Mac OS X.md

@@ -105,3 +105,9 @@ git pull
 make clean TARGET=NAZE
 make TARGET=NAZE
 ```
+
+Or in the case of CC3D in need of a `obj/cleanflight_CC3D.bin`
+```
+make clean TARGET=CC3D
+make TARGET=CC3D OPBL=yes
+```

fake_travis_build.sh

@@ -3,6 +3,7 @@
 targets=("PUBLISHMETA=True" \
     "RUNTESTS=True" \
     "TARGET=CC3D" \
+    "TARGET=CC3D OPBL=yes" \
     "TARGET=CHEBUZZF3" \
     "TARGET=CJMCU" \
     "TARGET=COLIBRI_RACE" \
@@ -25,7 +26,7 @@ export TRAVIS_REPO_SLUG=${TRAVIS_REPO_SLUG:=$USER/simulated}
 
 for target in "${targets[@]}"
 do
-	unset RUNTESTS PUBLISHMETA TARGET
+	unset RUNTESTS PUBLISHMETA TARGET OPBL
 	eval "export $target"
 	make clean
 	./.travis.sh

src/main/target/CC3D/target.h

@@ -132,20 +132,13 @@
 #define S1W_RX_GPIO         GPIOB
 #define S1W_RX_PIN          GPIO_Pin_11
 
-#if defined(OPBL)
-// disabled some features for OPBL build due to code size.
-#undef AUTOTUNE
-#undef BARO
-#undef DISPLAY
-#undef SONAR
-#define SKIP_CLI_COMMAND_HELP
-#endif
-
 #if defined(OPBL) && defined(USE_SERIAL_1WIRE)
 #undef DISPLAY
+#undef SONAR
+#undef BARO
+#define SKIP_CLI_COMMAND_HELP
 #endif
 
-
 #define SPEKTRUM_BIND
 // USART3, PB11 (Flexport)
 #define BIND_PORT  GPIOB

src/main/target/stm32_flash_f103_128k_opbl.ld

@@ -0,0 +1,21 @@
+/*
+*****************************************************************************
+**
+**  File        : stm32_flash.ld
+**
+**  Abstract    : Linker script for STM32F103CB Device with
+**                128KByte FLASH, 20KByte RAM
+**
+*****************************************************************************
+*/
+
+/* Specify the memory areas. */
+MEMORY
+{
+  FLASH (rx)      : ORIGIN = 0x08003000, LENGTH = 126K - 0x03000 /* last 2kb used for config storage first 12k for OP Bootloader*/
+
+  RAM (xrw)       : ORIGIN = 0x20000000, LENGTH = 20K
+  MEMORY_B1 (rx)  : ORIGIN = 0x60000000, LENGTH = 0K
+}
+
+INCLUDE "stm32_flash.ld"