Initial work for consolidation of ChibiOS platform files (#8327)

* Initial work for consolidation of board files and default ChibiOS configs.

* Migrate F401/F411 black pills for testing.

* Add early init bootloader jump flag.

* Add support for I2C in order to use i2c_scanner keymap.

* Add F401/F411 HSE bypass to get things booting.

* Exempt "hooked" ChibiOS conf files from updater script.

* Fix up ordering for bootloader_defs file check.

* Match previous $(KEYBOARD_PATHS) value for Proton-C, updated for all board configs.

3 files changed, 234 insertions, 0 deletions

diff --git a/platforms/chibios/STM32_F103_STM32DUINO/board/board.c b/platforms/chibios/STM32_F103_STM32DUINO/board/board.c
new file mode 100644
index 0000000000..9135f61364
--- /dev/null
+++ b/platforms/chibios/STM32_F103_STM32DUINO/board/board.c
@@ -0,0 +1,59 @@
+/*
+    ChibiOS - Copyright (C) 2006..2015 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"
+
+// Value to place in RTC backup register 10 for persistent bootloader mode
+#define RTC_BOOTLOADER_FLAG 0x424C
+
+/**
+ * @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
+
+__attribute__((weak)) void enter_bootloader_mode_if_requested(void) {}
+
+/*
+ * Early initialization code.
+ * This initialization must be performed just after stack setup and before
+ * any other initialization.
+ */
+void __early_init(void) {
+  enter_bootloader_mode_if_requested();
+
+  stm32_clock_init();
+}
+
+/*
+ * Board-specific initialization code.
+ */
+void boardInit(void) {
+   //JTAG-DP Disabled and SW-DP Enabled
+   AFIO->MAPR |= AFIO_MAPR_SWJ_CFG_JTAGDISABLE;
+   //Set backup register DR10 to enter bootloader on reset
+   BKP->DR10 = RTC_BOOTLOADER_FLAG;
+}
diff --git a/platforms/chibios/STM32_F103_STM32DUINO/board/board.h b/platforms/chibios/STM32_F103_STM32DUINO/board/board.h
new file mode 100644
index 0000000000..09d182d6ca
--- /dev/null
+++ b/platforms/chibios/STM32_F103_STM32DUINO/board/board.h
@@ -0,0 +1,166 @@
+/*
+    ChibiOS - Copyright (C) 2006..2015 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.
+*/
+
+#ifndef _BOARD_H_
+#define _BOARD_H_
+
+/*
+ * Setup for a Generic STM32F103 board.
+ */
+
+/*
+ * Board identifier.
+ */
+#define BOARD_STM32_F103_STM32DUINO
+#define BOARD_NAME              "GENERIC STM32F103C8T6 board - stm32duino bootloader"
+
+/*
+ * Board frequencies.
+ */
+#define STM32_LSECLK            32768
+#define STM32_HSECLK            8000000
+
+/*
+ * MCU type, supported types are defined in ./os/hal/platforms/hal_lld.h.
+ */
+#define STM32F103xB
+
+/*
+ * IO pins assignments
+ */
+
+/* on-board */
+
+#define GPIOA_LED               8
+#define GPIOD_OSC_IN            0
+#define GPIOD_OSC_OUT           1
+
+/* In case your board has a "USB enable" hardware
+   controlled by a pin, define it here. (It could be just
+   a 1.5k resistor connected to D+ line.)
+*/
+/*
+#define GPIOB_USB_DISC          10
+*/
+
+/*
+ * I/O ports initial setup, this configuration is established soon after reset
+ * in the initialization code.
+ *
+ * The digits have the following meaning:
+ *   0 - Analog input.
+ *   1 - Push Pull output 10MHz.
+ *   2 - Push Pull output 2MHz.
+ *   3 - Push Pull output 50MHz.
+ *   4 - Digital input.
+ *   5 - Open Drain output 10MHz.
+ *   6 - Open Drain output 2MHz.
+ *   7 - Open Drain output 50MHz.
+ *   8 - Digital input with PullUp or PullDown resistor depending on ODR.
+ *   9 - Alternate Push Pull output 10MHz.
+ *   A - Alternate Push Pull output 2MHz.
+ *   B - Alternate Push Pull output 50MHz.
+ *   C - Reserved.
+ *   D - Alternate Open Drain output 10MHz.
+ *   E - Alternate Open Drain output 2MHz.
+ *   F - Alternate Open Drain output 50MHz.
+ * Please refer to the STM32 Reference Manual for details.
+ */
+
+/*
+ * Port A setup.
+ * Everything input with pull-up except:
+ * PA2  - Alternate output  (USART2 TX).
+ * PA3  - Normal input      (USART2 RX).
+ * PA9  - Alternate output  (USART1 TX).
+ * PA10 - Normal input      (USART1 RX).
+ */
+#define VAL_GPIOACRL            0x88884B88      /*  PA7...PA0 */
+#define VAL_GPIOACRH            0x888884B8      /* PA15...PA8 */
+#define VAL_GPIOAODR            0xFFFFFFFF
+
+/*
+ * Port B setup.
+ * Everything input with pull-up except:
+ * PB10    - Push Pull output  (USB switch).
+ */
+#define VAL_GPIOBCRL            0x88888888      /*  PB7...PB0 */
+#define VAL_GPIOBCRH            0x88888388      /* PB15...PB8 */
+#define VAL_GPIOBODR            0xFFFFFFFF
+
+/*
+ * Port C setup.
+ * Everything input with pull-up except:
+ * PC13    - Push Pull output  (LED).
+ */
+#define VAL_GPIOCCRL            0x88888888      /*  PC7...PC0 */
+#define VAL_GPIOCCRH            0x88388888      /* PC15...PC8 */
+#define VAL_GPIOCODR            0xFFFFFFFF
+
+/*
+ * Port D setup.
+ * Everything input with pull-up except:
+ * PD0  - Normal input (XTAL).
+ * PD1  - Normal input (XTAL).
+ */
+#define VAL_GPIODCRL            0x88888844      /*  PD7...PD0 */
+#define VAL_GPIODCRH            0x88888888      /* PD15...PD8 */
+#define VAL_GPIODODR            0xFFFFFFFF
+
+/*
+ * Port E setup.
+ * Everything input with pull-up except:
+ */
+#define VAL_GPIOECRL            0x88888888      /*  PE7...PE0 */
+#define VAL_GPIOECRH            0x88888888      /* PE15...PE8 */
+#define VAL_GPIOEODR            0xFFFFFFFF
+
+/*
+ * USB bus activation macro, required by the USB driver.
+ */
+/* The point is that most of the generic STM32F103* boards
+   have a 1.5k resistor connected on one end to the D+ line
+   and on the other end to some pin. Or even a slightly more
+   complicated "USB enable" circuit, controlled by a pin.
+   That should go here.
+
+   However on some boards (e.g. one that I have), there's no
+   such hardware. In which case it's better to not do anything.
+*/
+/*
+#define usb_lld_connect_bus(usbp) palClearPad(GPIOB, GPIOB_USB_DISC)
+*/
+#define usb_lld_connect_bus(usbp) palSetPadMode(GPIOA, 12, PAL_MODE_INPUT);
+
+/*
+ * USB bus de-activation macro, required by the USB driver.
+ */
+/*
+#define usb_lld_disconnect_bus(usbp) palSetPad(GPIOB, GPIOB_USB_DISC)
+*/
+#define usb_lld_disconnect_bus(usbp) palSetPadMode(GPIOA, 12, PAL_MODE_OUTPUT_PUSHPULL); palClearPad(GPIOA, 12);
+
+#if !defined(_FROM_ASM_)
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void boardInit(void);
+#ifdef __cplusplus
+}
+#endif
+#endif /* _FROM_ASM_ */
+
+#endif /* _BOARD_H_ */
diff --git a/platforms/chibios/STM32_F103_STM32DUINO/board/board.mk b/platforms/chibios/STM32_F103_STM32DUINO/board/board.mk
new file mode 100644
index 0000000000..842e335905
--- /dev/null
+++ b/platforms/chibios/STM32_F103_STM32DUINO/board/board.mk
@@ -0,0 +1,9 @@
+# List of all the board related files.
+BOARDSRC = $(BOARD_PATH)/board/board.c
+
+# Required include directories
+BOARDINC = $(BOARD_PATH)/board
+
+# Shared variables
+ALLCSRC += $(BOARDSRC)
+ALLINC  += $(BOARDINC)