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diff --git a/demos/chibios/boards/olimex_stm32_p107/board.c b/demos/chibios/boards/olimex_stm32_p107/board.c
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+/*
+    ChibiOS/RT - Copyright (C) 2006-2014 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();
+}
+
+#if HAL_USE_MMC_SPI
+/*
+ * Card detection through the card internal pull-up on D3.
+ */
+bool mmc_lld_is_card_inserted(MMCDriver *mmcp) {
+  static bool last_status = FALSE;
+
+  (void)mmcp;
+  if ((palReadLatch(GPIOA) & PAL_PORT_BIT(GPIOA_SPI3_CS_MMC)) == 0)
+    return last_status;
+  return last_status = (bool)palReadPad(GPIOA, GPIOA_SPI3_CS_MMC);
+}
+
+/*
+ * Card write protection detection is not possible, the card is always
+ * reported as not protected.
+ */
+bool mmc_lld_is_write_protected(MMCDriver *mmcp) {
+
+  (void)mmcp;
+  return FALSE;
+}
+#endif
+
+/*
+ * Board-specific initialization code.
+ */
+void boardInit(void) {
+
+  /*
+   * Several I/O pins are re-mapped:
+   *   USART3 to the PD8/PD9 pins.
+   *   I2C1 to the PB8/PB9 pins.
+   *   SPI3 to the PC10/PC11/PC12 pins.
+   */
+  AFIO->MAPR |= AFIO_MAPR_USART3_REMAP_FULLREMAP |
+                AFIO_MAPR_USART2_REMAP |
+                AFIO_MAPR_I2C1_REMAP |
+                AFIO_MAPR_SPI3_REMAP;
+}