Update to ChibiOS 20.3.4, support builds against trunk (#14208)

* Add support for building against ChibiOS svn/trunk.

* Swap to 21.6.x

* Update to latest branch revision as released version is broken.

* Updated configs.

* Conf updates.

* Updated ChibiOS

* Convert STM32L422 to actual L422 ChibiOS platform.

* Downgrade to 20.3.4 as ChibiOS 21.6.x is being aborted.

* Rollback L422-based boards.

17 files changed, 275 insertions, 303 deletions

diff --git a/docs/chibios_upgrade_instructions.md b/docs/chibios_upgrade_instructions.md
index 40c2faafcf..b0a71142a3 100644
--- a/docs/chibios_upgrade_instructions.md
+++ b/docs/chibios_upgrade_instructions.md
@@ -14,10 +14,10 @@ ChibiOS and ChibiOS-Contrib need to be updated in tandem -- the latter has a bra
     * First time around this will take several hours
     * Subsequent updates will be incremental only
 * Tagging example (work out which version first!):
-    * `git tag -a ver20.3.3 -m ver20.3.3 svn/tags/ver20.3.3`
-    * `git push qmk ver20.3.3`
-    * `git tag -a breaking_YYYY_qN -m breaking_YYYY_qN svn/tags/ver20.3.3`
-    * `git push qmk breaking_YYYY_qN`
+    * `git tag -a ver20.3.4 -m ver20.3.4 svn/tags/ver20.3.4`
+    * `git push qmk ver20.3.4`
+    * `git tag -a develop_YYYY_qN -m develop_YYYY_qN svn/tags/ver20.3.4`
+    * `git push qmk develop_YYYY_qN`
 
 ## Getting ChibiOS-Contrib
 
@@ -30,8 +30,8 @@ ChibiOS and ChibiOS-Contrib need to be updated in tandem -- the latter has a bra
     * `git checkout chibios-20.3.x`
     * `git pull --ff-only`
     * `git push origin chibios-20.3.x`
-    * `git tag -a breaking_YYYY_qN -m breaking_YYYY_qN chibios-20.3.x`
-    * `git push origin breaking_YYYY_qN`
+    * `git tag -a develop_YYYY_qN -m develop_YYYY_qN chibios-20.3.x`
+    * `git push origin develop_YYYY_qN`
 
 ## Updating submodules
 
@@ -42,15 +42,18 @@ ChibiOS and ChibiOS-Contrib need to be updated in tandem -- the latter has a bra
     * `git checkout -b chibios-version-bump`
     * `cd lib/chibios`
     * `git fetch --all --tags --prune`
-    * `git checkout breaking_YYYY_qN`
+    * `git checkout develop_YYYY_qN`
     * `cd ../chibios-contrib`
     * `git fetch --all --tags --prune`
-    * `git checkout breaking_YYYY_qN`
+    * `git checkout develop_YYYY_qN`
+* Update ChibiOS configs within QMK
+    * `cd $QMK_FIRMWARE`
+    * `./util/chibios_conf_updater.sh`
 * Build everything
     * `cd $QMK_FIRMWARE`
     * `qmk multibuild -j4`
     * Make sure there are no errors
 * Push to the repo
-    * `git commit -am 'Update ChibiOS to XXXXXXXXX'`
+    * `git commit -am 'Update ChibiOS to 99.9.9'`
     * `git push --set-upstream origin chibios-version-bump`
-* Make a PR to qmk_firmware with the new branch
\ No newline at end of file
+* Make a PR to qmk_firmware with the new branch
diff --git a/keyboards/matrix/m20add/mcuconf.h b/keyboards/matrix/m20add/mcuconf.h
index 54a1f26613..00216f6908 100644
--- a/keyboards/matrix/m20add/mcuconf.h
+++ b/keyboards/matrix/m20add/mcuconf.h
@@ -1,5 +1,5 @@
 /*
-    ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+    ChibiOS - Copyright (C) 2006..2020 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.
@@ -32,11 +32,15 @@
  */
 
 #define STM32F4xx_MCUCONF
+#define STM32F411_MCUCONF
 
 /*
  * HAL driver system settings.
  */
 #define STM32_NO_INIT                       FALSE
+#define STM32_PVD_ENABLE                    FALSE
+#define STM32_PLS                           STM32_PLS_LEV0
+#define STM32_BKPRAM_ENABLE                 FALSE
 #define STM32_HSI_ENABLED                   TRUE
 #define STM32_LSI_ENABLED                   TRUE
 #define STM32_HSE_ENABLED                   TRUE
@@ -60,9 +64,6 @@
 #define STM32_I2SSRC                        STM32_I2SSRC_CKIN
 #define STM32_PLLI2SN_VALUE                 192
 #define STM32_PLLI2SR_VALUE                 5
-#define STM32_PVD_ENABLE                    FALSE
-#define STM32_PLS                           STM32_PLS_LEV0
-#define STM32_BKPRAM_ENABLE                 FALSE
 
 /*
  * IRQ system settings.
@@ -82,6 +83,19 @@
 #define STM32_IRQ_EXTI21_PRIORITY           15
 #define STM32_IRQ_EXTI22_PRIORITY           15
 
+#define STM32_IRQ_TIM1_BRK_TIM9_PRIORITY    7
+#define STM32_IRQ_TIM1_UP_TIM10_PRIORITY    7
+#define STM32_IRQ_TIM1_TRGCO_TIM11_PRIORITY 7
+#define STM32_IRQ_TIM1_CC_PRIORITY          7
+#define STM32_IRQ_TIM2_PRIORITY             7
+#define STM32_IRQ_TIM3_PRIORITY             7
+#define STM32_IRQ_TIM4_PRIORITY             7
+#define STM32_IRQ_TIM5_PRIORITY             7
+
+#define STM32_IRQ_USART1_PRIORITY           12
+#define STM32_IRQ_USART2_PRIORITY           12
+#define STM32_IRQ_USART6_PRIORITY           12
+
 /*
  * ADC driver system settings.
  */
@@ -101,14 +115,8 @@
 #define STM32_GPT_USE_TIM4                  TRUE
 #define STM32_GPT_USE_TIM5                  FALSE
 #define STM32_GPT_USE_TIM9                  FALSE
+#define STM32_GPT_USE_TIM10                 FALSE
 #define STM32_GPT_USE_TIM11                 FALSE
-#define STM32_GPT_TIM1_IRQ_PRIORITY         7
-#define STM32_GPT_TIM2_IRQ_PRIORITY         7
-#define STM32_GPT_TIM3_IRQ_PRIORITY         7
-#define STM32_GPT_TIM4_IRQ_PRIORITY         7
-#define STM32_GPT_TIM5_IRQ_PRIORITY         7
-#define STM32_GPT_TIM9_IRQ_PRIORITY         7
-#define STM32_GPT_TIM11_IRQ_PRIORITY        7
 
 /*
  * I2C driver system settings.
@@ -155,29 +163,28 @@
 #define STM32_ICU_USE_TIM4                  FALSE
 #define STM32_ICU_USE_TIM5                  FALSE
 #define STM32_ICU_USE_TIM9                  FALSE
-#define STM32_ICU_TIM1_IRQ_PRIORITY         7
-#define STM32_ICU_TIM2_IRQ_PRIORITY         7
-#define STM32_ICU_TIM3_IRQ_PRIORITY         7
-#define STM32_ICU_TIM4_IRQ_PRIORITY         7
-#define STM32_ICU_TIM5_IRQ_PRIORITY         7
-#define STM32_ICU_TIM9_IRQ_PRIORITY         7
+#define STM32_ICU_USE_TIM10                 FALSE
+#define STM32_ICU_USE_TIM11                 FALSE
 
 /*
  * PWM driver system settings.
  */
-#define STM32_PWM_USE_ADVANCED              FALSE
 #define STM32_PWM_USE_TIM1                  FALSE
 #define STM32_PWM_USE_TIM2                  FALSE
 #define STM32_PWM_USE_TIM3                  FALSE
 #define STM32_PWM_USE_TIM4                  FALSE
 #define STM32_PWM_USE_TIM5                  FALSE
 #define STM32_PWM_USE_TIM9                  FALSE
-#define STM32_PWM_TIM1_IRQ_PRIORITY         7
-#define STM32_PWM_TIM2_IRQ_PRIORITY         7
-#define STM32_PWM_TIM3_IRQ_PRIORITY         7
-#define STM32_PWM_TIM4_IRQ_PRIORITY         7
-#define STM32_PWM_TIM5_IRQ_PRIORITY         7
-#define STM32_PWM_TIM9_IRQ_PRIORITY         7
+#define STM32_PWM_USE_TIM10                 FALSE
+#define STM32_PWM_USE_TIM11                 FALSE
+
+/*
+ * RTC driver system settings.
+ */
+#define STM32_RTC_PRESA_VALUE               32
+#define STM32_RTC_PRESS_VALUE               1024
+#define STM32_RTC_CR_INIT                   0
+#define STM32_RTC_TAMPCR_INIT               0
 
 /*
  * SERIAL driver system settings.
@@ -185,9 +192,6 @@
 #define STM32_SERIAL_USE_USART1             FALSE
 #define STM32_SERIAL_USE_USART2             FALSE
 #define STM32_SERIAL_USE_USART6             FALSE
-#define STM32_SERIAL_USART1_PRIORITY        12
-#define STM32_SERIAL_USART2_PRIORITY        12
-#define STM32_SERIAL_USART6_PRIORITY        12
 
 /*
  * SPI driver system settings.
@@ -227,9 +231,6 @@
 #define STM32_UART_USART2_TX_DMA_STREAM     STM32_DMA_STREAM_ID(1, 6)
 #define STM32_UART_USART6_RX_DMA_STREAM     STM32_DMA_STREAM_ID(2, 2)
 #define STM32_UART_USART6_TX_DMA_STREAM     STM32_DMA_STREAM_ID(2, 7)
-#define STM32_UART_USART1_IRQ_PRIORITY      12
-#define STM32_UART_USART2_IRQ_PRIORITY      12
-#define STM32_UART_USART6_IRQ_PRIORITY      12
 #define STM32_UART_USART1_DMA_PRIORITY      0
 #define STM32_UART_USART2_DMA_PRIORITY      0
 #define STM32_UART_USART6_DMA_PRIORITY      0
@@ -241,9 +242,7 @@
 #define STM32_USB_USE_OTG1                  TRUE
 #define STM32_USB_OTG1_IRQ_PRIORITY         14
 #define STM32_USB_OTG1_RX_FIFO_SIZE         512
-#define STM32_USB_OTG_THREAD_PRIO           LOWPRIO
-#define STM32_USB_OTG_THREAD_STACK_SIZE     128
-#define STM32_USB_OTGFIFO_FILL_BASEPRI      0
+#define STM32_USB_HOST_WAKEUP_DURATION      2
 
 /*
  * WDG driver system settings.
diff --git a/keyboards/matrix/noah/mcuconf.h b/keyboards/matrix/noah/mcuconf.h
index 54a1f26613..00216f6908 100644
--- a/keyboards/matrix/noah/mcuconf.h
+++ b/keyboards/matrix/noah/mcuconf.h
@@ -1,5 +1,5 @@
 /*
-    ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+    ChibiOS - Copyright (C) 2006..2020 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.
@@ -32,11 +32,15 @@
  */
 
 #define STM32F4xx_MCUCONF
+#define STM32F411_MCUCONF
 
 /*
  * HAL driver system settings.
  */
 #define STM32_NO_INIT                       FALSE
+#define STM32_PVD_ENABLE                    FALSE
+#define STM32_PLS                           STM32_PLS_LEV0
+#define STM32_BKPRAM_ENABLE                 FALSE
 #define STM32_HSI_ENABLED                   TRUE
 #define STM32_LSI_ENABLED                   TRUE
 #define STM32_HSE_ENABLED                   TRUE
@@ -60,9 +64,6 @@
 #define STM32_I2SSRC                        STM32_I2SSRC_CKIN
 #define STM32_PLLI2SN_VALUE                 192
 #define STM32_PLLI2SR_VALUE                 5
-#define STM32_PVD_ENABLE                    FALSE
-#define STM32_PLS                           STM32_PLS_LEV0
-#define STM32_BKPRAM_ENABLE                 FALSE
 
 /*
  * IRQ system settings.
@@ -82,6 +83,19 @@
 #define STM32_IRQ_EXTI21_PRIORITY           15
 #define STM32_IRQ_EXTI22_PRIORITY           15
 
+#define STM32_IRQ_TIM1_BRK_TIM9_PRIORITY    7
+#define STM32_IRQ_TIM1_UP_TIM10_PRIORITY    7
+#define STM32_IRQ_TIM1_TRGCO_TIM11_PRIORITY 7
+#define STM32_IRQ_TIM1_CC_PRIORITY          7
+#define STM32_IRQ_TIM2_PRIORITY             7
+#define STM32_IRQ_TIM3_PRIORITY             7
+#define STM32_IRQ_TIM4_PRIORITY             7
+#define STM32_IRQ_TIM5_PRIORITY             7
+
+#define STM32_IRQ_USART1_PRIORITY           12
+#define STM32_IRQ_USART2_PRIORITY           12
+#define STM32_IRQ_USART6_PRIORITY           12
+
 /*
  * ADC driver system settings.
  */
@@ -101,14 +115,8 @@
 #define STM32_GPT_USE_TIM4                  TRUE
 #define STM32_GPT_USE_TIM5                  FALSE
 #define STM32_GPT_USE_TIM9                  FALSE
+#define STM32_GPT_USE_TIM10                 FALSE
 #define STM32_GPT_USE_TIM11                 FALSE
-#define STM32_GPT_TIM1_IRQ_PRIORITY         7
-#define STM32_GPT_TIM2_IRQ_PRIORITY         7
-#define STM32_GPT_TIM3_IRQ_PRIORITY         7
-#define STM32_GPT_TIM4_IRQ_PRIORITY         7
-#define STM32_GPT_TIM5_IRQ_PRIORITY         7
-#define STM32_GPT_TIM9_IRQ_PRIORITY         7
-#define STM32_GPT_TIM11_IRQ_PRIORITY        7
 
 /*
  * I2C driver system settings.
@@ -155,29 +163,28 @@
 #define STM32_ICU_USE_TIM4                  FALSE
 #define STM32_ICU_USE_TIM5                  FALSE
 #define STM32_ICU_USE_TIM9                  FALSE
-#define STM32_ICU_TIM1_IRQ_PRIORITY         7
-#define STM32_ICU_TIM2_IRQ_PRIORITY         7
-#define STM32_ICU_TIM3_IRQ_PRIORITY         7
-#define STM32_ICU_TIM4_IRQ_PRIORITY         7
-#define STM32_ICU_TIM5_IRQ_PRIORITY         7
-#define STM32_ICU_TIM9_IRQ_PRIORITY         7
+#define STM32_ICU_USE_TIM10                 FALSE
+#define STM32_ICU_USE_TIM11                 FALSE
 
 /*
  * PWM driver system settings.
  */
-#define STM32_PWM_USE_ADVANCED              FALSE
 #define STM32_PWM_USE_TIM1                  FALSE
 #define STM32_PWM_USE_TIM2                  FALSE
 #define STM32_PWM_USE_TIM3                  FALSE
 #define STM32_PWM_USE_TIM4                  FALSE
 #define STM32_PWM_USE_TIM5                  FALSE
 #define STM32_PWM_USE_TIM9                  FALSE
-#define STM32_PWM_TIM1_IRQ_PRIORITY         7
-#define STM32_PWM_TIM2_IRQ_PRIORITY         7
-#define STM32_PWM_TIM3_IRQ_PRIORITY         7
-#define STM32_PWM_TIM4_IRQ_PRIORITY         7
-#define STM32_PWM_TIM5_IRQ_PRIORITY         7
-#define STM32_PWM_TIM9_IRQ_PRIORITY         7
+#define STM32_PWM_USE_TIM10                 FALSE
+#define STM32_PWM_USE_TIM11                 FALSE
+
+/*
+ * RTC driver system settings.
+ */
+#define STM32_RTC_PRESA_VALUE               32
+#define STM32_RTC_PRESS_VALUE               1024
+#define STM32_RTC_CR_INIT                   0
+#define STM32_RTC_TAMPCR_INIT               0
 
 /*
  * SERIAL driver system settings.
@@ -185,9 +192,6 @@
 #define STM32_SERIAL_USE_USART1             FALSE
 #define STM32_SERIAL_USE_USART2             FALSE
 #define STM32_SERIAL_USE_USART6             FALSE
-#define STM32_SERIAL_USART1_PRIORITY        12
-#define STM32_SERIAL_USART2_PRIORITY        12
-#define STM32_SERIAL_USART6_PRIORITY        12
 
 /*
  * SPI driver system settings.
@@ -227,9 +231,6 @@
 #define STM32_UART_USART2_TX_DMA_STREAM     STM32_DMA_STREAM_ID(1, 6)
 #define STM32_UART_USART6_RX_DMA_STREAM     STM32_DMA_STREAM_ID(2, 2)
 #define STM32_UART_USART6_TX_DMA_STREAM     STM32_DMA_STREAM_ID(2, 7)
-#define STM32_UART_USART1_IRQ_PRIORITY      12
-#define STM32_UART_USART2_IRQ_PRIORITY      12
-#define STM32_UART_USART6_IRQ_PRIORITY      12
 #define STM32_UART_USART1_DMA_PRIORITY      0
 #define STM32_UART_USART2_DMA_PRIORITY      0
 #define STM32_UART_USART6_DMA_PRIORITY      0
@@ -241,9 +242,7 @@
 #define STM32_USB_USE_OTG1                  TRUE
 #define STM32_USB_OTG1_IRQ_PRIORITY         14
 #define STM32_USB_OTG1_RX_FIFO_SIZE         512
-#define STM32_USB_OTG_THREAD_PRIO           LOWPRIO
-#define STM32_USB_OTG_THREAD_STACK_SIZE     128
-#define STM32_USB_OTGFIFO_FILL_BASEPRI      0
+#define STM32_USB_HOST_WAKEUP_DURATION      2
 
 /*
  * WDG driver system settings.
diff --git a/lib/chibios b/lib/chibios
-Subproject 413e39c5681d181720440f2a8b7391f581788d7
+Subproject d7b9d1c87f724bd7c8cd1486d6d0dc3ba52e0d5
diff --git a/platforms/chibios/boards/BLACKPILL_STM32_F401/configs/mcuconf.h b/platforms/chibios/boards/BLACKPILL_STM32_F401/configs/mcuconf.h
index ba6e934fe7..a21fd7bd12 100644
--- a/platforms/chibios/boards/BLACKPILL_STM32_F401/configs/mcuconf.h
+++ b/platforms/chibios/boards/BLACKPILL_STM32_F401/configs/mcuconf.h
@@ -1,5 +1,5 @@
 /*
-    ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+    ChibiOS - Copyright (C) 2006..2020 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.
@@ -32,11 +32,15 @@
  */
 
 #define STM32F4xx_MCUCONF
+#define STM32F401_MCUCONF
 
 /*
  * HAL driver system settings.
  */
 #define STM32_NO_INIT                       FALSE
+#define STM32_PVD_ENABLE                    FALSE
+#define STM32_PLS                           STM32_PLS_LEV0
+#define STM32_BKPRAM_ENABLE                 FALSE
 #define STM32_HSI_ENABLED                   TRUE
 #define STM32_LSI_ENABLED                   TRUE
 #define STM32_HSE_ENABLED                   TRUE
@@ -44,13 +48,13 @@
 #define STM32_CLOCK48_REQUIRED              TRUE
 #define STM32_SW                            STM32_SW_PLL
 #define STM32_PLLSRC                        STM32_PLLSRC_HSE
-#define STM32_PLLM_VALUE                    25       
-#define STM32_PLLN_VALUE                    336     
-#define STM32_PLLP_VALUE                    4       
-#define STM32_PLLQ_VALUE                    7       
-#define STM32_HPRE                          STM32_HPRE_DIV1  
-#define STM32_PPRE1                         STM32_PPRE1_DIV4  
-#define STM32_PPRE2                         STM32_PPRE2_DIV2 
+#define STM32_PLLM_VALUE                    25
+#define STM32_PLLN_VALUE                    336
+#define STM32_PLLP_VALUE                    4
+#define STM32_PLLQ_VALUE                    7
+#define STM32_HPRE                          STM32_HPRE_DIV1
+#define STM32_PPRE1                         STM32_PPRE1_DIV4
+#define STM32_PPRE2                         STM32_PPRE2_DIV2
 #define STM32_RTCSEL                        STM32_RTCSEL_LSI
 #define STM32_RTCPRE_VALUE                  8
 #define STM32_MCO1SEL                       STM32_MCO1SEL_HSI
@@ -60,9 +64,6 @@
 #define STM32_I2SSRC                        STM32_I2SSRC_CKIN
 #define STM32_PLLI2SN_VALUE                 192
 #define STM32_PLLI2SR_VALUE                 5
-#define STM32_PVD_ENABLE                    FALSE
-#define STM32_PLS                           STM32_PLS_LEV0
-#define STM32_BKPRAM_ENABLE                 FALSE
 
 /*
  * IRQ system settings.
@@ -82,6 +83,19 @@
 #define STM32_IRQ_EXTI21_PRIORITY           15
 #define STM32_IRQ_EXTI22_PRIORITY           15
 
+#define STM32_IRQ_TIM1_BRK_TIM9_PRIORITY    7
+#define STM32_IRQ_TIM1_UP_TIM10_PRIORITY    7
+#define STM32_IRQ_TIM1_TRGCO_TIM11_PRIORITY 7
+#define STM32_IRQ_TIM1_CC_PRIORITY          7
+#define STM32_IRQ_TIM2_PRIORITY             7
+#define STM32_IRQ_TIM3_PRIORITY             7
+#define STM32_IRQ_TIM4_PRIORITY             7
+#define STM32_IRQ_TIM5_PRIORITY             7
+
+#define STM32_IRQ_USART1_PRIORITY           12
+#define STM32_IRQ_USART2_PRIORITY           12
+#define STM32_IRQ_USART6_PRIORITY           12
+
 /*
  * ADC driver system settings.
  */
@@ -101,14 +115,8 @@
 #define STM32_GPT_USE_TIM4                  FALSE
 #define STM32_GPT_USE_TIM5                  FALSE
 #define STM32_GPT_USE_TIM9                  FALSE
+#define STM32_GPT_USE_TIM10                 FALSE
 #define STM32_GPT_USE_TIM11                 FALSE
-#define STM32_GPT_TIM1_IRQ_PRIORITY         7
-#define STM32_GPT_TIM2_IRQ_PRIORITY         7
-#define STM32_GPT_TIM3_IRQ_PRIORITY         7
-#define STM32_GPT_TIM4_IRQ_PRIORITY         7
-#define STM32_GPT_TIM5_IRQ_PRIORITY         7
-#define STM32_GPT_TIM9_IRQ_PRIORITY         7
-#define STM32_GPT_TIM11_IRQ_PRIORITY        7
 
 /*
  * I2C driver system settings.
@@ -155,29 +163,20 @@
 #define STM32_ICU_USE_TIM4                  FALSE
 #define STM32_ICU_USE_TIM5                  FALSE
 #define STM32_ICU_USE_TIM9                  FALSE
-#define STM32_ICU_TIM1_IRQ_PRIORITY         7
-#define STM32_ICU_TIM2_IRQ_PRIORITY         7
-#define STM32_ICU_TIM3_IRQ_PRIORITY         7
-#define STM32_ICU_TIM4_IRQ_PRIORITY         7
-#define STM32_ICU_TIM5_IRQ_PRIORITY         7
-#define STM32_ICU_TIM9_IRQ_PRIORITY         7
+#define STM32_ICU_USE_TIM10                 FALSE
+#define STM32_ICU_USE_TIM11                 FALSE
 
 /*
  * PWM driver system settings.
  */
-#define STM32_PWM_USE_ADVANCED              FALSE
 #define STM32_PWM_USE_TIM1                  FALSE
 #define STM32_PWM_USE_TIM2                  FALSE
 #define STM32_PWM_USE_TIM3                  FALSE
 #define STM32_PWM_USE_TIM4                  FALSE
 #define STM32_PWM_USE_TIM5                  FALSE
 #define STM32_PWM_USE_TIM9                  FALSE
-#define STM32_PWM_TIM1_IRQ_PRIORITY         7
-#define STM32_PWM_TIM2_IRQ_PRIORITY         7
-#define STM32_PWM_TIM3_IRQ_PRIORITY         7
-#define STM32_PWM_TIM4_IRQ_PRIORITY         7
-#define STM32_PWM_TIM5_IRQ_PRIORITY         7
-#define STM32_PWM_TIM9_IRQ_PRIORITY         7
+#define STM32_PWM_USE_TIM10                 FALSE
+#define STM32_PWM_USE_TIM11                 FALSE
 
 /*
  * SERIAL driver system settings.
@@ -185,9 +184,6 @@
 #define STM32_SERIAL_USE_USART1             FALSE
 #define STM32_SERIAL_USE_USART2             FALSE
 #define STM32_SERIAL_USE_USART6             FALSE
-#define STM32_SERIAL_USART1_PRIORITY        12
-#define STM32_SERIAL_USART2_PRIORITY        12
-#define STM32_SERIAL_USART6_PRIORITY        12
 
 /*
  * SPI driver system settings.
@@ -227,9 +223,6 @@
 #define STM32_UART_USART2_TX_DMA_STREAM     STM32_DMA_STREAM_ID(1, 6)
 #define STM32_UART_USART6_RX_DMA_STREAM     STM32_DMA_STREAM_ID(2, 2)
 #define STM32_UART_USART6_TX_DMA_STREAM     STM32_DMA_STREAM_ID(2, 7)
-#define STM32_UART_USART1_IRQ_PRIORITY      12
-#define STM32_UART_USART2_IRQ_PRIORITY      12
-#define STM32_UART_USART6_IRQ_PRIORITY      12
 #define STM32_UART_USART1_DMA_PRIORITY      0
 #define STM32_UART_USART2_DMA_PRIORITY      0
 #define STM32_UART_USART6_DMA_PRIORITY      0
@@ -241,9 +234,7 @@
 #define STM32_USB_USE_OTG1                  TRUE
 #define STM32_USB_OTG1_IRQ_PRIORITY         14
 #define STM32_USB_OTG1_RX_FIFO_SIZE         512
-#define STM32_USB_OTG_THREAD_PRIO           NORMALPRIO+1
-#define STM32_USB_OTG_THREAD_STACK_SIZE     128
-#define STM32_USB_OTGFIFO_FILL_BASEPRI      0
+#define STM32_USB_HOST_WAKEUP_DURATION      2
 
 /*
  * WDG driver system settings.
diff --git a/platforms/chibios/boards/BLACKPILL_STM32_F411/configs/mcuconf.h b/platforms/chibios/boards/BLACKPILL_STM32_F411/configs/mcuconf.h
index 0394ff56bb..131c847661 100644
--- a/platforms/chibios/boards/BLACKPILL_STM32_F411/configs/mcuconf.h
+++ b/platforms/chibios/boards/BLACKPILL_STM32_F411/configs/mcuconf.h
@@ -1,5 +1,5 @@
 /*
-    ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+    ChibiOS - Copyright (C) 2006..2020 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.
@@ -32,11 +32,15 @@
  */
 
 #define STM32F4xx_MCUCONF
+#define STM32F411_MCUCONF
 
 /*
  * HAL driver system settings.
  */
 #define STM32_NO_INIT                       FALSE
+#define STM32_PVD_ENABLE                    FALSE
+#define STM32_PLS                           STM32_PLS_LEV0
+#define STM32_BKPRAM_ENABLE                 FALSE
 #define STM32_HSI_ENABLED                   TRUE
 #define STM32_LSI_ENABLED                   TRUE
 #define STM32_HSE_ENABLED                   TRUE
@@ -60,9 +64,6 @@
 #define STM32_I2SSRC                        STM32_I2SSRC_CKIN
 #define STM32_PLLI2SN_VALUE                 192
 #define STM32_PLLI2SR_VALUE                 5
-#define STM32_PVD_ENABLE                    FALSE
-#define STM32_PLS                           STM32_PLS_LEV0
-#define STM32_BKPRAM_ENABLE                 FALSE
 
 /*
  * IRQ system settings.
@@ -82,6 +83,19 @@
 #define STM32_IRQ_EXTI21_PRIORITY           15
 #define STM32_IRQ_EXTI22_PRIORITY           15
 
+#define STM32_IRQ_TIM1_BRK_TIM9_PRIORITY    7
+#define STM32_IRQ_TIM1_UP_TIM10_PRIORITY    7
+#define STM32_IRQ_TIM1_TRGCO_TIM11_PRIORITY 7
+#define STM32_IRQ_TIM1_CC_PRIORITY          7
+#define STM32_IRQ_TIM2_PRIORITY             7
+#define STM32_IRQ_TIM3_PRIORITY             7
+#define STM32_IRQ_TIM4_PRIORITY             7
+#define STM32_IRQ_TIM5_PRIORITY             7
+
+#define STM32_IRQ_USART1_PRIORITY           12
+#define STM32_IRQ_USART2_PRIORITY           12
+#define STM32_IRQ_USART6_PRIORITY           12
+
 /*
  * ADC driver system settings.
  */
@@ -101,14 +115,8 @@
 #define STM32_GPT_USE_TIM4                  FALSE
 #define STM32_GPT_USE_TIM5                  FALSE
 #define STM32_GPT_USE_TIM9                  FALSE
+#define STM32_GPT_USE_TIM10                 FALSE
 #define STM32_GPT_USE_TIM11                 FALSE
-#define STM32_GPT_TIM1_IRQ_PRIORITY         7
-#define STM32_GPT_TIM2_IRQ_PRIORITY         7
-#define STM32_GPT_TIM3_IRQ_PRIORITY         7
-#define STM32_GPT_TIM4_IRQ_PRIORITY         7
-#define STM32_GPT_TIM5_IRQ_PRIORITY         7
-#define STM32_GPT_TIM9_IRQ_PRIORITY         7
-#define STM32_GPT_TIM11_IRQ_PRIORITY        7
 
 /*
  * I2C driver system settings.
@@ -155,29 +163,28 @@
 #define STM32_ICU_USE_TIM4                  FALSE
 #define STM32_ICU_USE_TIM5                  FALSE
 #define STM32_ICU_USE_TIM9                  FALSE
-#define STM32_ICU_TIM1_IRQ_PRIORITY         7
-#define STM32_ICU_TIM2_IRQ_PRIORITY         7
-#define STM32_ICU_TIM3_IRQ_PRIORITY         7
-#define STM32_ICU_TIM4_IRQ_PRIORITY         7
-#define STM32_ICU_TIM5_IRQ_PRIORITY         7
-#define STM32_ICU_TIM9_IRQ_PRIORITY         7
+#define STM32_ICU_USE_TIM10                 FALSE
+#define STM32_ICU_USE_TIM11                 FALSE
 
 /*
  * PWM driver system settings.
  */
-#define STM32_PWM_USE_ADVANCED              FALSE
 #define STM32_PWM_USE_TIM1                  FALSE
 #define STM32_PWM_USE_TIM2                  FALSE
 #define STM32_PWM_USE_TIM3                  FALSE
 #define STM32_PWM_USE_TIM4                  FALSE
 #define STM32_PWM_USE_TIM5                  FALSE
 #define STM32_PWM_USE_TIM9                  FALSE
-#define STM32_PWM_TIM1_IRQ_PRIORITY         7
-#define STM32_PWM_TIM2_IRQ_PRIORITY         7
-#define STM32_PWM_TIM3_IRQ_PRIORITY         7
-#define STM32_PWM_TIM4_IRQ_PRIORITY         7
-#define STM32_PWM_TIM5_IRQ_PRIORITY         7
-#define STM32_PWM_TIM9_IRQ_PRIORITY         7
+#define STM32_PWM_USE_TIM10                 FALSE
+#define STM32_PWM_USE_TIM11                 FALSE
+
+/*
+ * RTC driver system settings.
+ */
+#define STM32_RTC_PRESA_VALUE               32
+#define STM32_RTC_PRESS_VALUE               1024
+#define STM32_RTC_CR_INIT                   0
+#define STM32_RTC_TAMPCR_INIT               0
 
 /*
  * SERIAL driver system settings.
@@ -185,9 +192,6 @@
 #define STM32_SERIAL_USE_USART1             FALSE
 #define STM32_SERIAL_USE_USART2             FALSE
 #define STM32_SERIAL_USE_USART6             FALSE
-#define STM32_SERIAL_USART1_PRIORITY        12
-#define STM32_SERIAL_USART2_PRIORITY        12
-#define STM32_SERIAL_USART6_PRIORITY        12
 
 /*
  * SPI driver system settings.
@@ -227,9 +231,6 @@
 #define STM32_UART_USART2_TX_DMA_STREAM     STM32_DMA_STREAM_ID(1, 6)
 #define STM32_UART_USART6_RX_DMA_STREAM     STM32_DMA_STREAM_ID(2, 2)
 #define STM32_UART_USART6_TX_DMA_STREAM     STM32_DMA_STREAM_ID(2, 7)
-#define STM32_UART_USART1_IRQ_PRIORITY      12
-#define STM32_UART_USART2_IRQ_PRIORITY      12
-#define STM32_UART_USART6_IRQ_PRIORITY      12
 #define STM32_UART_USART1_DMA_PRIORITY      0
 #define STM32_UART_USART2_DMA_PRIORITY      0
 #define STM32_UART_USART6_DMA_PRIORITY      0
@@ -241,9 +242,7 @@
 #define STM32_USB_USE_OTG1                  TRUE
 #define STM32_USB_OTG1_IRQ_PRIORITY         14
 #define STM32_USB_OTG1_RX_FIFO_SIZE         512
-#define STM32_USB_OTG_THREAD_PRIO           NORMALPRIO+1
-#define STM32_USB_OTG_THREAD_STACK_SIZE     128
-#define STM32_USB_OTGFIFO_FILL_BASEPRI      0
+#define STM32_USB_HOST_WAKEUP_DURATION      2
 
 /*
  * WDG driver system settings.
diff --git a/platforms/chibios/boards/GENERIC_STM32_F405XG/configs/mcuconf.h b/platforms/chibios/boards/GENERIC_STM32_F405XG/configs/mcuconf.h
index d2ec632d9f..908a580a91 100644
--- a/platforms/chibios/boards/GENERIC_STM32_F405XG/configs/mcuconf.h
+++ b/platforms/chibios/boards/GENERIC_STM32_F405XG/configs/mcuconf.h
@@ -344,9 +344,6 @@
 #define STM32_USB_OTG2_RX_FIFO_SIZE         1024
 #define STM32_USB_HOST_WAKEUP_DURATION      2
 
-#define STM32_USB_OTG_THREAD_PRIO           NORMALPRIO+1
-#define STM32_USB_OTG_THREAD_STACK_SIZE     128
-
 /*
  * WDG driver system settings.
  */
diff --git a/platforms/chibios/boards/GENERIC_STM32_F407XE/configs/mcuconf.h b/platforms/chibios/boards/GENERIC_STM32_F407XE/configs/mcuconf.h
index 4be47fe1b0..928ee56c71 100644
--- a/platforms/chibios/boards/GENERIC_STM32_F407XE/configs/mcuconf.h
+++ b/platforms/chibios/boards/GENERIC_STM32_F407XE/configs/mcuconf.h
@@ -344,9 +344,6 @@
 #define STM32_USB_OTG2_RX_FIFO_SIZE         1024
 #define STM32_USB_HOST_WAKEUP_DURATION      2
 
-#define STM32_USB_OTG_THREAD_PRIO           NORMALPRIO+1
-#define STM32_USB_OTG_THREAD_STACK_SIZE     128
-
 /*
  * WDG driver system settings.
  */
diff --git a/platforms/chibios/boards/GENERIC_STM32_F446XE/configs/mcuconf.h b/platforms/chibios/boards/GENERIC_STM32_F446XE/configs/mcuconf.h
index d2de75590e..566c146c25 100644
--- a/platforms/chibios/boards/GENERIC_STM32_F446XE/configs/mcuconf.h
+++ b/platforms/chibios/boards/GENERIC_STM32_F446XE/configs/mcuconf.h
@@ -1,5 +1,5 @@
 /*
-    ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+    ChibiOS - Copyright (C) 2006..2020 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.
@@ -32,11 +32,15 @@
  */
 
 #define STM32F4xx_MCUCONF
+#define STM32F446_MCUCONF
 
 /*
  * HAL driver system settings.
  */
 #define STM32_NO_INIT                       FALSE
+#define STM32_PVD_ENABLE                    FALSE
+#define STM32_PLS                           STM32_PLS_LEV0
+#define STM32_BKPRAM_ENABLE                 FALSE
 #define STM32_HSI_ENABLED                   FALSE
 #define STM32_LSI_ENABLED                   TRUE
 #define STM32_HSE_ENABLED                   TRUE
@@ -70,9 +74,6 @@
 #define STM32_SAI1SEL                       STM32_SAI2SEL_PLLR
 #define STM32_SAI2SEL                       STM32_SAI2SEL_PLLR
 #define STM32_CK48MSEL                      STM32_CK48MSEL_PLLALT
-#define STM32_PVD_ENABLE                    FALSE
-#define STM32_PLS                           STM32_PLS_LEV0
-#define STM32_BKPRAM_ENABLE                 FALSE
 
 /*
  * IRQ system settings.
@@ -92,6 +93,30 @@
 #define STM32_IRQ_EXTI21_PRIORITY           15
 #define STM32_IRQ_EXTI22_PRIORITY           15
 
+#define STM32_IRQ_TIM1_BRK_TIM9_PRIORITY    7
+#define STM32_IRQ_TIM1_UP_TIM10_PRIORITY    7
+#define STM32_IRQ_TIM1_TRGCO_TIM11_PRIORITY 7
+#define STM32_IRQ_TIM1_CC_PRIORITY          7
+#define STM32_IRQ_TIM2_PRIORITY             7
+#define STM32_IRQ_TIM3_PRIORITY             7
+#define STM32_IRQ_TIM4_PRIORITY             7
+#define STM32_IRQ_TIM5_PRIORITY             7
+#define STM32_IRQ_TIM6_PRIORITY             7
+#define STM32_IRQ_TIM7_PRIORITY             7
+#define STM32_IRQ_TIM8_BRK_TIM12_PRIORITY   7
+#define STM32_IRQ_TIM8_UP_TIM13_PRIORITY    7
+#define STM32_IRQ_TIM8_TRGCO_TIM14_PRIORITY 7
+#define STM32_IRQ_TIM8_CC_PRIORITY          7
+
+#define STM32_IRQ_USART1_PRIORITY           12
+#define STM32_IRQ_USART2_PRIORITY           12
+#define STM32_IRQ_USART3_PRIORITY           12
+#define STM32_IRQ_UART4_PRIORITY            12
+#define STM32_IRQ_UART5_PRIORITY            12
+#define STM32_IRQ_USART6_PRIORITY           12
+#define STM32_IRQ_UART7_PRIORITY            12
+#define STM32_IRQ_UART8_PRIORITY            12
+
 /*
  * ADC driver system settings.
  */
@@ -143,21 +168,11 @@
 #define STM32_GPT_USE_TIM7                  FALSE
 #define STM32_GPT_USE_TIM8                  FALSE
 #define STM32_GPT_USE_TIM9                  FALSE
+#define STM32_GPT_USE_TIM10                 FALSE
 #define STM32_GPT_USE_TIM11                 FALSE
 #define STM32_GPT_USE_TIM12                 FALSE
+#define STM32_GPT_USE_TIM13                 FALSE
 #define STM32_GPT_USE_TIM14                 FALSE
-#define STM32_GPT_TIM1_IRQ_PRIORITY         7
-#define STM32_GPT_TIM2_IRQ_PRIORITY         7
-#define STM32_GPT_TIM3_IRQ_PRIORITY         7
-#define STM32_GPT_TIM4_IRQ_PRIORITY         7
-#define STM32_GPT_TIM5_IRQ_PRIORITY         7
-#define STM32_GPT_TIM6_IRQ_PRIORITY         7
-#define STM32_GPT_TIM7_IRQ_PRIORITY         7
-#define STM32_GPT_TIM8_IRQ_PRIORITY         7
-#define STM32_GPT_TIM9_IRQ_PRIORITY         7
-#define STM32_GPT_TIM11_IRQ_PRIORITY        7
-#define STM32_GPT_TIM12_IRQ_PRIORITY        7
-#define STM32_GPT_TIM14_IRQ_PRIORITY        7
 
 /*
  * I2C driver system settings.
@@ -205,13 +220,11 @@
 #define STM32_ICU_USE_TIM5                  FALSE
 #define STM32_ICU_USE_TIM8                  FALSE
 #define STM32_ICU_USE_TIM9                  FALSE
-#define STM32_ICU_TIM1_IRQ_PRIORITY         7
-#define STM32_ICU_TIM2_IRQ_PRIORITY         7
-#define STM32_ICU_TIM3_IRQ_PRIORITY         7
-#define STM32_ICU_TIM4_IRQ_PRIORITY         7
-#define STM32_ICU_TIM5_IRQ_PRIORITY         7
-#define STM32_ICU_TIM8_IRQ_PRIORITY         7
-#define STM32_ICU_TIM9_IRQ_PRIORITY         7
+#define STM32_ICU_USE_TIM10                 FALSE
+#define STM32_ICU_USE_TIM11                 FALSE
+#define STM32_ICU_USE_TIM12                 FALSE
+#define STM32_ICU_USE_TIM13                 FALSE
+#define STM32_ICU_USE_TIM14                 FALSE
 
 /*
  * MAC driver system settings.
@@ -227,7 +240,6 @@
 /*
  * PWM driver system settings.
  */
-#define STM32_PWM_USE_ADVANCED              FALSE
 #define STM32_PWM_USE_TIM1                  FALSE
 #define STM32_PWM_USE_TIM2                  FALSE
 #define STM32_PWM_USE_TIM3                  FALSE
@@ -235,13 +247,19 @@
 #define STM32_PWM_USE_TIM5                  FALSE
 #define STM32_PWM_USE_TIM8                  FALSE
 #define STM32_PWM_USE_TIM9                  FALSE
-#define STM32_PWM_TIM1_IRQ_PRIORITY         7
-#define STM32_PWM_TIM2_IRQ_PRIORITY         7
-#define STM32_PWM_TIM3_IRQ_PRIORITY         7
-#define STM32_PWM_TIM4_IRQ_PRIORITY         7
-#define STM32_PWM_TIM5_IRQ_PRIORITY         7
-#define STM32_PWM_TIM8_IRQ_PRIOR