[Keyboard] Added support for ErgoDox with STM32 Microcontroller (#5398)

* Began Work On STM32 Ergodox
 Changes to be committed:
	new file:   keyboards/ergodox_stm32/config.h
	new file:   keyboards/ergodox_stm32/rules.mk

* test

* Now it compile. Not linking thou

* Screw this Linker. It links now!

* Blinkly Keyboard

* bootloader test code

* Working on matrix / i2c stuff

* Progress (LED Blink)

* Progress on MCP_23017 Status Flag

* [WIP]

* update

* Works! Remeber to change back the bootloader address when the new bootloadrer is ready.

* Time to go debug the i2c

* Finally, it now works with PCB Rev 1.0.2

* updated for rev.2 pcb

* minor compilation fix

* Why when debugger is enabled then everything works.

* Remeber to call init functions.

* Update arm i2c driver to support STM32F103 series device.

* fix include once header. Replaced with #pragma once.

* complication test

1 files changed, 51 insertions, 0 deletions

diff --git a/keyboards/ergodox_stm32/boards/ERGODOX_STM32_BOARD/board.c b/keyboards/ergodox_stm32/boards/ERGODOX_STM32_BOARD/board.c
new file mode 100644
index 0000000000..d953d6a135
--- /dev/null
+++ b/keyboards/ergodox_stm32/boards/ERGODOX_STM32_BOARD/board.c
@@ -0,0 +1,51 @@
+/*
+    ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+#include "hal.h"
+
+/**
+ * @brief   PAL setup.
+ * @details Digital I/O ports static configuration as defined in @p board.h.
+ *          This variable is used by the HAL when initializing the PAL driver.
+ */
+#if HAL_USE_PAL || defined(__DOXYGEN__)
+const PALConfig pal_default_config =
+{
+  {VAL_GPIOAODR, VAL_GPIOACRL, VAL_GPIOACRH},
+  {VAL_GPIOBODR, VAL_GPIOBCRL, VAL_GPIOBCRH},
+  {VAL_GPIOCODR, VAL_GPIOCCRL, VAL_GPIOCCRH},
+  {VAL_GPIODODR, VAL_GPIODCRL, VAL_GPIODCRH},
+  {VAL_GPIOEODR, VAL_GPIOECRL, VAL_GPIOECRH},
+};
+#endif
+
+/*
+ * Early initialization code.
+ * This initialization must be performed just after stack setup and before
+ * any other initialization.
+ */
+void __early_init(void) {
+
+  stm32_clock_init();
+}
+
+/*
+ * Board-specific initialization code.
+ */
+void boardInit(void) {
+	AFIO->MAPR |= AFIO_MAPR_SWJ_CFG_JTAGDISABLE;
+
+}