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-rw-r--r--bootloader.mk9
-rw-r--r--common_features.mk2
-rw-r--r--data/schemas/keyboard.jsonschema4
-rw-r--r--docs/compatible_microcontrollers.md6
-rw-r--r--docs/driver_installation_zadig.md1
-rw-r--r--drivers/led/apa102.c2
-rw-r--r--keyboards/handwired/onekey/keymaps/quine/rules.mk1
-rw-r--r--keyboards/handwired/onekey/readme.md2
-rw-r--r--keyboards/handwired/onekey/sipeed_longan_nano/chconf.h23
-rw-r--r--keyboards/handwired/onekey/sipeed_longan_nano/config.h37
-rw-r--r--keyboards/handwired/onekey/sipeed_longan_nano/halconf.h23
-rw-r--r--keyboards/handwired/onekey/sipeed_longan_nano/mcuconf.h29
-rw-r--r--keyboards/handwired/onekey/sipeed_longan_nano/readme.md5
-rw-r--r--keyboards/handwired/onekey/sipeed_longan_nano/rules.mk11
-rw-r--r--lib/python/qmk/constants.py2
-rw-r--r--platforms/chibios/boards/SIPEED_LONGAN_NANO/board/board.mk9
-rw-r--r--platforms/chibios/boards/SIPEED_LONGAN_NANO/configs/chconf.h23
-rw-r--r--platforms/chibios/boards/SIPEED_LONGAN_NANO/configs/mcuconf.h302
-rw-r--r--platforms/chibios/drivers/analog.c10
-rw-r--r--platforms/chibios/drivers/ws2812.c2
-rw-r--r--platforms/chibios/flash.mk2
-rw-r--r--quantum/mcu_selection.mk31
-rw-r--r--tmk_core/chibios.mk310
-rw-r--r--tmk_core/common/chibios/bootloader.c22
-rw-r--r--tmk_core/common/chibios/chibios_config.h19
-rw-r--r--tmk_core/common/chibios/eeprom_stm32_defs.h6
-rw-r--r--tmk_core/common/chibios/flash_stm32.c5
-rw-r--r--tmk_core/common/chibios/gd32v_compatibility.h120
-rw-r--r--tmk_core/common/chibios/syscall-fallbacks.c6
-rwxr-xr-xutil/install/arch.sh3
-rwxr-xr-xutil/install/debian.sh3
31 files changed, 904 insertions, 126 deletions
diff --git a/bootloader.mk b/bootloader.mk
index 5ba118fb44..ccb92392d9 100644
--- a/bootloader.mk
+++ b/bootloader.mk
@@ -34,6 +34,8 @@
# stm32duino STM32Duino (STM32F103x8)
# stm32-dfu STM32 USB DFU in ROM
# apm32-dfu APM32 USB DFU in ROM
+# RISC-V:
+# gd32v-dfu GD32V USB DFU in ROM
#
# BOOTLOADER_SIZE can still be defined manually, but it's recommended
# you add any possible configuration to this list
@@ -125,6 +127,13 @@ ifeq ($(strip $(BOOTLOADER)), apm32-dfu)
DFU_ARGS ?= -d 314B:0106 -a 0 -s 0x08000000:leave
DFU_SUFFIX_ARGS ?= -v 314B -p 0106
endif
+ifeq ($(strip $(BOOTLOADER)), gd32v-dfu)
+ OPT_DEFS += -DBOOTLOADER_GD32V_DFU
+
+ # Options to pass to dfu-util when flashing
+ DFU_ARGS ?= -d 28E9:0189 -a 0 -s 0x08000000:leave
+ DFU_SUFFIX_ARGS ?= -v 28E9 -p 0189
+endif
ifeq ($(strip $(BOOTLOADER)), kiibohd)
OPT_DEFS += -DBOOTLOADER_KIIBOHD
ifeq ($(strip $(MCU_ORIG)), MK20DX128)
diff --git a/common_features.mk b/common_features.mk
index aff91641e4..7dd63be5be 100644
--- a/common_features.mk
+++ b/common_features.mk
@@ -142,7 +142,7 @@ else
ifeq ($(PLATFORM),AVR)
# Automatically provided by avr-libc, nothing required
else ifeq ($(PLATFORM),CHIBIOS)
- ifneq ($(filter STM32F3xx_% STM32F1xx_% %_STM32F401xC %_STM32F401xE %_STM32F405xG %_STM32F411xE %_STM32F072xB %_STM32F042x6, $(MCU_SERIES)_$(MCU_LDSCRIPT)),)
+ ifneq ($(filter STM32F3xx_% STM32F1xx_% %_STM32F401xC %_STM32F401xE %_STM32F405xG %_STM32F411xE %_STM32F072xB %_STM32F042x6 %_GD32VF103xB %_GD32VF103x8, $(MCU_SERIES)_$(MCU_LDSCRIPT)),)
OPT_DEFS += -DEEPROM_DRIVER
COMMON_VPATH += $(DRIVER_PATH)/eeprom
SRC += eeprom_driver.c
diff --git a/data/schemas/keyboard.jsonschema b/data/schemas/keyboard.jsonschema
index b6b5e411fe..65d44c94d2 100644
--- a/data/schemas/keyboard.jsonschema
+++ b/data/schemas/keyboard.jsonschema
@@ -13,7 +13,7 @@
},
"processor": {
"type": "string",
- "enum": ["cortex-m0", "cortex-m0plus", "cortex-m3", "cortex-m4", "MKL26Z64", "MK20DX128", "MK20DX256", "MK66FX1M0", "STM32F042", "STM32F072", "STM32F103", "STM32F303", "STM32F401", "STM32F405", "STM32F407", "STM32F411", "STM32F446", "STM32G431", "STM32G474", "STM32L412", "STM32L422", "STM32L433", "STM32L443", "atmega16u2", "atmega32u2", "atmega16u4", "atmega32u4", "at90usb162", "at90usb646", "at90usb647", "at90usb1286", "at90usb1287", "atmega32a", "atmega328p", "atmega328", "attiny85", "unknown"]
+ "enum": ["cortex-m0", "cortex-m0plus", "cortex-m3", "cortex-m4", "MKL26Z64", "MK20DX128", "MK20DX256", "MK66FX1M0", "STM32F042", "STM32F072", "STM32F103", "STM32F303", "STM32F401", "STM32F405", "STM32F407", "STM32F411", "STM32F446", "STM32G431", "STM32G474", "STM32L412", "STM32L422", "STM32L433", "STM32L443", "GD32VF103", "atmega16u2", "atmega32u2", "atmega16u4", "atmega32u4", "at90usb162", "at90usb646", "at90usb647", "at90usb1286", "at90usb1287", "atmega32a", "atmega328p", "atmega328", "attiny85", "unknown"]
},
"audio": {
"type": "object",
@@ -56,7 +56,7 @@
},
"bootloader": {
"type": "string",
- "enum": ["atmel-dfu", "bootloadhid", "bootloadHID", "caterina", "halfkay", "kiibohd", "lufa-dfu", "lufa-ms", "micronucleus", "qmk-dfu", "qmk-hid", "stm32-dfu", "stm32duino", "unknown", "usbasploader", "USBasp", "tinyuf2"],
+ "enum": ["atmel-dfu", "bootloadhid", "bootloadHID", "caterina", "halfkay", "kiibohd", "lufa-dfu", "lufa-ms", "micronucleus", "qmk-dfu", "qmk-hid", "stm32-dfu", "stm32duino", "gd32v-dfu", "unknown", "usbasploader", "USBasp", "tinyuf2"],
},
"bootloader_instructions": {
"type": "string",
diff --git a/docs/compatible_microcontrollers.md b/docs/compatible_microcontrollers.md
index f4aab5f5bd..39e9061c20 100644
--- a/docs/compatible_microcontrollers.md
+++ b/docs/compatible_microcontrollers.md
@@ -48,3 +48,9 @@ You can also use any ARM chip with USB that [ChibiOS](https://www.chibios.org) s
## Atmel ATSAM
There is limited support for one of Atmel's ATSAM microcontrollers, that being the [ATSAMD51J18A](https://www.microchip.com/wwwproducts/en/ATSAMD51J18A) used by the [Massdrop keyboards](https://github.com/qmk/qmk_firmware/tree/master/keyboards/massdrop).
+
+## RISC-V
+
+### GigaDevice
+
+[ChibiOS-Contrib](https://github.com/ChibiOS/ChibiOS-Contrib) has support for the GigaDevice [GD32VF103 series](https://www.gigadevice.com/products/microcontrollers/gd32/risc-v/mainstream-line/gd32vf103-series/) microcontrollers and provides configurations for the [SiPeed Longan Nano](https://longan.sipeed.com/en/) development board that uses this microcontroller. It is largely pin and feature compatible with STM32F103 and STM32F303 microcontrollers. \ No newline at end of file
diff --git a/docs/driver_installation_zadig.md b/docs/driver_installation_zadig.md
index 9155e56e37..003629ba9a 100644
--- a/docs/driver_installation_zadig.md
+++ b/docs/driver_installation_zadig.md
@@ -93,6 +93,7 @@ The device name here is the name that appears in Zadig, and may not be what the
|`usbasploader`|USBasp |`16C0:05DC` |libusbK|
|`apm32-dfu` |APM32 DFU ISP Mode |`314B:0106` |WinUSB |
|`stm32-dfu` |STM32 BOOTLOADER |`0483:DF11` |WinUSB |
+|`gd32v-dfu` |GD32V BOOTLOADER |`28E9:0189` |WinUSB |
|`kiibohd` |Kiibohd DFU Bootloader |`1C11:B007` |WinUSB |
|`stm32duino` |Maple 003 |`1EAF:0003` |WinUSB |
|`qmk-hid` |(keyboard name) Bootloader |`03EB:2067` |HidUsb |
diff --git a/drivers/led/apa102.c b/drivers/led/apa102.c
index 19e0bfc189..00e7eb4505 100644
--- a/drivers/led/apa102.c
+++ b/drivers/led/apa102.c
@@ -24,7 +24,7 @@
# elif defined(PROTOCOL_CHIBIOS)
# include "hal.h"
-# if defined(STM32F0XX) || defined(STM32F1XX) || defined(STM32F3XX) || defined(STM32F4XX) || defined(STM32L0XX)
+# if defined(STM32F0XX) || defined(STM32F1XX) || defined(STM32F3XX) || defined(STM32F4XX) || defined(STM32L0XX) || defined(GD32VF103)
# define APA102_NOPS (100 / (1000000000L / (CPU_CLOCK / 4))) // This calculates how many loops of 4 nops to run to delay 100 ns
# else
# error("APA102_NOPS configuration required")
diff --git a/keyboards/handwired/onekey/keymaps/quine/rules.mk b/keyboards/handwired/onekey/keymaps/quine/rules.mk
deleted file mode 100644
index 4c2b0289a2..0000000000
--- a/keyboards/handwired/onekey/keymaps/quine/rules.mk
+++ /dev/null
@@ -1 +0,0 @@
-BOOTLOADER = atmel-dfu
diff --git a/keyboards/handwired/onekey/readme.md b/keyboards/handwired/onekey/readme.md
index b630b11748..2973b7d873 100644
--- a/keyboards/handwired/onekey/readme.md
+++ b/keyboards/handwired/onekey/readme.md
@@ -3,7 +3,7 @@
Custom handwired one key keyboard. **See each individual board for pin information.**
* Keyboard Maintainer: QMK Community
-* Hardware Supported: bluepill, Elite-C, Pro Micro, Proton C, Teensy 2.0, Teensy++ 2.0, Teensy LC, Teensy 3.2
+* Hardware Supported: Blackpill F401/F411, Bluepill, Elite-C, Pro Micro, Proton C, Sipeed Longan Nano, STM32F0 Disco, Teensy 2.0, Teensy++ 2.0, Teensy LC, Teensy 3.2
* Hardware Availability: *n/a*
Make example for this keyboard (after setting up your build environment):
diff --git a/keyboards/handwired/onekey/sipeed_longan_nano/chconf.h b/keyboards/handwired/onekey/sipeed_longan_nano/chconf.h
new file mode 100644
index 0000000000..b1eb18de78
--- /dev/null
+++ b/keyboards/handwired/onekey/sipeed_longan_nano/chconf.h
@@ -0,0 +1,23 @@
+/* Copyright 2021 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#define CH_CFG_ST_RESOLUTION 16
+
+#define CH_CFG_ST_FREQUENCY 10000
+
+#include_next <chconf.h>
diff --git a/keyboards/handwired/onekey/sipeed_longan_nano/config.h b/keyboards/handwired/onekey/sipeed_longan_nano/config.h
new file mode 100644
index 0000000000..1825b936d8
--- /dev/null
+++ b/keyboards/handwired/onekey/sipeed_longan_nano/config.h
@@ -0,0 +1,37 @@
+/* Copyright 2021 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include "config_common.h"
+
+#define MATRIX_COL_PINS \
+ { B0 }
+#define MATRIX_ROW_PINS \
+ { A7 }
+#define UNUSED_PINS
+
+#define BACKLIGHT_PIN A1 /* Green LED. */
+#define BACKLIGHT_PWM_DRIVER PWMD5 /* GD32 numbering scheme starts from 0, TIMER4 on GD32 boards is TIMER5 on STM32 boards. */
+#define BACKLIGHT_PWM_CHANNEL 2 /* GD32 numbering scheme starts from 0, Channel 1 on GD32 boards is Channel 2 on STM32 boards. */
+
+#define RGB_DI_PIN A2
+#define RGB_CI_PIN B13
+
+#define ADC_PIN A0
+
+#define I2C1_CLOCK_SPEED 1000000 /* GD32VF103 supports fast mode plus. */
+#define I2C1_DUTY_CYCLE FAST_DUTY_CYCLE_2
diff --git a/keyboards/handwired/onekey/sipeed_longan_nano/halconf.h b/keyboards/handwired/onekey/sipeed_longan_nano/halconf.h
new file mode 100644
index 0000000000..2579c58747
--- /dev/null
+++ b/keyboards/handwired/onekey/sipeed_longan_nano/halconf.h
@@ -0,0 +1,23 @@
+/* Copyright 2021 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#define HAL_USE_PWM TRUE
+#define HAL_USE_ADC TRUE
+#define HAL_USE_I2C TRUE
+
+#include_next <halconf.h>
diff --git a/keyboards/handwired/onekey/sipeed_longan_nano/mcuconf.h b/keyboards/handwired/onekey/sipeed_longan_nano/mcuconf.h
new file mode 100644
index 0000000000..eba0dd9eeb
--- /dev/null
+++ b/keyboards/handwired/onekey/sipeed_longan_nano/mcuconf.h
@@ -0,0 +1,29 @@
+/*
+ ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+ ChibiOS - Copyright (C) 2021 Stefan Kerkmann
+
+ 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.
+*/
+
+#pragma once
+
+#include_next <mcuconf.h>
+
+#undef GD32_ADC_USE_ADC0
+#define GD32_ADC_USE_ADC0 TRUE
+
+#undef GD32_I2C_USE_I2C0
+#define GD32_I2C_USE_I2C0 TRUE
+
+#undef GD32_PWM_USE_TIM4
+#define GD32_PWM_USE_TIM4 TRUE
diff --git a/keyboards/handwired/onekey/sipeed_longan_nano/readme.md b/keyboards/handwired/onekey/sipeed_longan_nano/readme.md
new file mode 100644
index 0000000000..0a3a291576
--- /dev/null
+++ b/keyboards/handwired/onekey/sipeed_longan_nano/readme.md
@@ -0,0 +1,5 @@
+# Sipeed Longan Nano onekey
+
+Supported Hardware: *GD32VF103CB Sipeed Longan Nano*.
+
+To trigger keypress, short together pins *B0* and *A7*. \ No newline at end of file
diff --git a/keyboards/handwired/onekey/sipeed_longan_nano/rules.mk b/keyboards/handwired/onekey/sipeed_longan_nano/rules.mk
new file mode 100644
index 0000000000..aef4fee6b2
--- /dev/null
+++ b/keyboards/handwired/onekey/sipeed_longan_nano/rules.mk
@@ -0,0 +1,11 @@
+# MCU name
+MCU = GD32VF103
+BOARD = SIPEED_LONGAN_NANO
+
+# Bootloader selection
+BOOTLOADER = gd32v-dfu
+
+# Build Options
+# change yes to no to disable
+#
+KEYBOARD_SHARED_EP = yes
diff --git a/lib/python/qmk/constants.py b/lib/python/qmk/constants.py
index bfcd4064ac..73f596ba2c 100644
--- a/lib/python/qmk/constants.py
+++ b/lib/python/qmk/constants.py
@@ -13,7 +13,7 @@ QMK_FIRMWARE_UPSTREAM = 'qmk/qmk_firmware'
MAX_KEYBOARD_SUBFOLDERS = 5
# Supported processor types
-CHIBIOS_PROCESSORS = 'cortex-m0', 'cortex-m0plus', 'cortex-m3', 'cortex-m4', 'MKL26Z64', 'MK20DX128', 'MK20DX256', 'MK66FX1M0', 'STM32F042', 'STM32F072', 'STM32F103', 'STM32F303', 'STM32F401', 'STM32F407', 'STM32F411', 'STM32F446', 'STM32G431', 'STM32G474', 'STM32L412', 'STM32L422', 'STM32L433', 'STM32L443'
+CHIBIOS_PROCESSORS = 'cortex-m0', 'cortex-m0plus', 'cortex-m3', 'cortex-m4', 'MKL26Z64', 'MK20DX128', 'MK20DX256', 'MK66FX1M0', 'STM32F042', 'STM32F072', 'STM32F103', 'STM32F303', 'STM32F401', 'STM32F407', 'STM32F411', 'STM32F446', 'STM32G431', 'STM32G474', 'STM32L412', 'STM32L422', 'STM32L433', 'STM32L443', 'GD32VF103'
LUFA_PROCESSORS = 'at90usb162', 'atmega16u2', 'atmega32u2', 'atmega16u4', 'atmega32u4', 'at90usb646', 'at90usb647', 'at90usb1286', 'at90usb1287', None
VUSB_PROCESSORS = 'atmega32a', 'atmega328p', 'atmega328', 'attiny85'
diff --git a/platforms/chibios/boards/SIPEED_LONGAN_NANO/board/board.mk b/platforms/chibios/boards/SIPEED_LONGAN_NANO/board/board.mk
new file mode 100644
index 0000000000..960fc26786
--- /dev/null
+++ b/platforms/chibios/boards/SIPEED_LONGAN_NANO/board/board.mk
@@ -0,0 +1,9 @@
+# List of all the board related files.
+BOARDSRC = ${CHIBIOS_CONTRIB}/os/hal/boards/SIPEED_LONGAN_NANO/board.c
+
+# Required include directories
+BOARDINC = ${CHIBIOS_CONTRIB}/os/hal/boards/SIPEED_LONGAN_NANO
+
+# Shared variables
+ALLCSRC += $(BOARDSRC)
+ALLINC += $(BOARDINC)
diff --git a/platforms/chibios/boards/SIPEED_LONGAN_NANO/configs/chconf.h b/platforms/chibios/boards/SIPEED_LONGAN_NANO/configs/chconf.h
new file mode 100644
index 0000000000..6e5adb0fe1
--- /dev/null
+++ b/platforms/chibios/boards/SIPEED_LONGAN_NANO/configs/chconf.h
@@ -0,0 +1,23 @@
+/* Copyright 2021 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* To compile the ChibiOS syscall stubs with picolibc
+ * the _reent struct has to be defined. */
+#if !defined(_FROM_ASM_) && defined(USE_PICOLIBC)
+struct _reent;
+#endif
+
+#include_next <chconf.h> \ No newline at end of file
diff --git a/platforms/chibios/boards/SIPEED_LONGAN_NANO/configs/mcuconf.h b/platforms/chibios/boards/SIPEED_LONGAN_NANO/configs/mcuconf.h
new file mode 100644
index 0000000000..ab086567e5
--- /dev/null
+++ b/platforms/chibios/boards/SIPEED_LONGAN_NANO/configs/mcuconf.h
@@ -0,0 +1,302 @@
+/*
+ ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
+ ChibiOS - Copyright (C) 2021 Stefan Kerkmann
+
+ 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.
+*/
+
+#pragma once
+
+#define GD32VF103_MCUCONF
+#define GD32VF103CB
+
+/*
+ * GD32VF103 drivers configuration.
+ * The following settings override the default settings present in
+ * the various device driver implementation headers.
+ * Note that the settings for each driver only have effect if the whole
+ * driver is enabled in halconf.h.
+ *
+ * IRQ priorities:
+ * 0...15 Lowest...Highest.
+ *
+ * DMA priorities:
+ * 0...3 Lowest...Highest.
+ */
+
+/*
+ * HAL driver system settings.
+*/
+
+#if defined(OVERCLOCK_120MHZ)
+/* (8MHz / 2) * 30 = 120MHz Sysclock */
+#define GD32_ALLOW_120MHZ_SYSCLK
+#define GD32_PLLMF_VALUE 30
+#define GD32_USBFSPSC GD32_USBFSPSC_DIV2P5
+#else
+/* (8MHz / 2) * 24 = 96MHz Sysclock */
+#define GD32_PLLMF_VALUE 24
+#define GD32_USBFSPSC GD32_USBFSPSC_DIV2
+#endif
+
+#define GD32_NO_INIT FALSE
+#define GD32_IRC8M_ENABLED TRUE
+#define GD32_IRC40K_ENABLED FALSE
+#define GD32_HXTAL_ENABLED TRUE
+#define GD32_LXTAL_ENABLED FALSE
+#define GD32_SCS GD32_SCS_PLL
+#define GD32_PLLSEL GD32_PLLSEL_PREDV0
+#define GD32_PREDV0SEL GD32_PREDV0SEL_HXTAL
+#define GD32_PREDV0_VALUE 2
+#define GD32_PREDV1_VALUE 2
+#define GD32_PLL1MF_VALUE 14
+#define GD32_PLL2MF_VALUE 13
+#define GD32_AHBPSC GD32_AHBPSC_DIV1
+#define GD32_APB1PSC GD32_APB1PSC_DIV2
+#define GD32_APB2PSC GD32_APB2PSC_DIV1
+#define GD32_ADCPSC GD32_ADCPSC_DIV16
+#define GD32_USB_CLOCK_REQUIRED TRUE
+#define GD32_I2S_CLOCK_REQUIRED FALSE
+#define GD32_CKOUT0SEL GD32_CKOUT0SEL_NOCLOCK
+#define GD32_RTCSRC GD32_RTCSRC_NOCLOCK
+#define GD32_PVD_ENABLE FALSE
+#define GD32_LVDT GD32_LVDT_LEV0
+
+/*
+ * ECLIC system settings.
+ */
+#define ECLIC_TRIGGER_DEFAULT ECLIC_POSTIVE_EDGE_TRIGGER
+#define ECLIC_DMA_TRIGGER ECLIC_TRIGGER_DEFAULT
+
+/*
+ * IRQ system settings.
+ */
+#define GD32_IRQ_EXTI0_PRIORITY 6
+#define GD32_IRQ_EXTI1_PRIORITY 6
+#define GD32_IRQ_EXTI2_PRIORITY 6
+#define GD32_IRQ_EXTI3_PRIORITY 6
+#define GD32_IRQ_EXTI4_PRIORITY 6
+#define GD32_IRQ_EXTI5_9_PRIORITY 6
+#define GD32_IRQ_EXTI10_15_PRIORITY 6
+#define GD32_IRQ_EXTI0_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_IRQ_EXTI1_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_IRQ_EXTI2_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_IRQ_EXTI3_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_IRQ_EXTI4_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_IRQ_EXTI5_9_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_IRQ_EXTI10_15_TRIGGER ECLIC_TRIGGER_DEFAULT
+
+/*
+ * ADC driver system settings.
+ */
+#define GD32_ADC_USE_ADC0 FALSE
+#define GD32_ADC_ADC0_DMA_PRIORITY 2
+#define GD32_ADC_ADC0_IRQ_PRIORITY 6
+
+/*
+ * CAN driver system settings.
+ */
+#define GD32_CAN_USE_CAN0 FALSE
+#define GD32_CAN_CAN0_IRQ_PRIORITY 11
+#define GD32_CAN_USE_CAN1 FALSE
+#define GD32_CAN_CAN1_IRQ_PRIORITY 11
+#define GD32_CAN_CAN0_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_CAN_CAN1_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+
+/*
+ * CRC driver system settings.
+ */
+#define GD32_CRC_USE_CRC0 FALSE
+#define GD32_CRC_CRC0_DMA_IRQ_PRIORITY 14
+#define GD32_CRC_CRC0_DMA_PRIORITY 2
+#define GD32_CRC_CRC0_DMA_STREAM GD32_DMA_STREAM_ID(0, 0)
+#define CRC_USE_DMA FALSE
+#define CRCSW_USE_CRC1 FALSE
+#define CRCSW_CRC32_TABLE FALSE
+#define CRCSW_CRC16_TABLE FALSE
+#define CRCSW_PROGRAMMABLE FALSE
+
+/*
+ * DAC driver system settings.
+ */
+#define GD32_DAC_USE_DAC_CH1 FALSE
+#define GD32_DAC_USE_DAC_CH2 FALSE
+
+/*
+ * GPT driver system settings.
+ */
+#define GD32_GPT_USE_TIM0 FALSE
+#define GD32_GPT_USE_TIM1 FALSE
+#define GD32_GPT_USE_TIM2 FALSE
+#define GD32_GPT_USE_TIM3 FALSE
+#define GD32_GPT_USE_TIM4 FALSE
+#define GD32_GPT_TIM0_IRQ_PRIORITY 7
+#define GD32_GPT_TIM1_IRQ_PRIORITY 7
+#define GD32_GPT_TIM2_IRQ_PRIORITY 7
+#define GD32_GPT_TIM3_IRQ_PRIORITY 7
+#define GD32_GPT_TIM4_IRQ_PRIORITY 7
+#define GD32_GPT_TIM0_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_GPT_TIM1_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_GPT_TIM2_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_GPT_TIM3_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_GPT_TIM4_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_GPT_TIM5_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_GPT_TIM6_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+
+/*
+ * I2S driver system settings.
+ */
+#define GD32_I2S_USE_SPI1 FALSE
+#define GD32_I2S_USE_SPI2 FALSE
+#define GD32_I2S_SPI1_IRQ_PRIORITY 10
+#define GD32_I2S_SPI2_IRQ_PRIORITY 10
+#define GD32_I2S_SPI1_DMA_PRIORITY 1
+#define GD32_I2S_SPI2_DMA_PRIORITY 1
+#define GD32_I2S_DMA_ERROR_HOOK(i2sp) osalSysHalt("DMA failure")
+
+/*
+ * I2C driver system settings.
+ */
+#define GD32_I2C_USE_I2C0 FALSE
+#define GD32_I2C_USE_I2C1 FALSE
+#define GD32_I2C_BUSY_TIMEOUT 50
+#define GD32_I2C_I2C0_IRQ_PRIORITY 10
+#define GD32_I2C_I2C1_IRQ_PRIORITY 5
+#define GD32_I2C_I2C0_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_I2C_I2C1_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_I2C_I2C0_DMA_PRIORITY 2
+#define GD32_I2C_I2C1_DMA_PRIORITY 2
+#define GD32_I2C_DMA_ERROR_HOOK(i2cp) osalSysHalt("DMA failure")
+
+/*
+ * ICU driver system settings.
+ */
+#define GD32_ICU_USE_TIM0 FALSE
+#define GD32_ICU_USE_TIM1 FALSE
+#define GD32_ICU_USE_TIM2 FALSE
+#define GD32_ICU_USE_TIM3 FALSE
+#define GD32_ICU_USE_TIM4 FALSE
+#define GD32_ICU_TIM0_IRQ_PRIORITY 7
+#define GD32_ICU_TIM1_IRQ_PRIORITY 7
+#define GD32_ICU_TIM2_IRQ_PRIORITY 7
+#define GD32_ICU_TIM3_IRQ_PRIORITY 7
+#define GD32_ICU_TIM4_IRQ_PRIORITY 7
+#define GD32_ICU_TIM0_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_ICU_TIM1_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_ICU_TIM2_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_ICU_TIM3_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_ICU_TIM4_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+
+/*
+ * PWM driver system settings.
+ */
+#define GD32_PWM_USE_ADVANCED FALSE
+#define GD32_PWM_USE_TIM0 FALSE
+#define GD32_PWM_USE_TIM1 FALSE
+#define GD32_PWM_USE_TIM2 FALSE
+#define GD32_PWM_USE_TIM3 FALSE
+#define GD32_PWM_USE_TIM4 FALSE
+#define GD32_PWM_TIM0_IRQ_PRIORITY 10
+#define GD32_PWM_TIM1_IRQ_PRIORITY 10
+#define GD32_PWM_TIM2_IRQ_PRIORITY 10
+#define GD32_PWM_TIM3_IRQ_PRIORITY 10
+#define GD32_PWM_TIM4_IRQ_PRIORITY 10
+#define GD32_PWM_TIM0_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_PWM_TIM1_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_PWM_TIM2_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_PWM_TIM3_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_PWM_TIM4_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+
+/*
+ * RTC driver system settings.
+ */
+#define GD32_RTC_IRQ_PRIORITY 15
+#define GD32_RTC_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+
+/*
+ * SERIAL driver system settings.
+ */
+#define GD32_SERIAL_USE_USART0 FALSE
+#define GD32_SERIAL_USE_USART1 FALSE
+#define GD32_SERIAL_USE_USART2 FALSE
+#define GD32_SERIAL_USE_UART3 FALSE
+#define GD32_SERIAL_USE_UART4 FALSE
+#define GD32_SERIAL_USART0_PRIORITY 10
+#define GD32_SERIAL_USART1_PRIORITY 10
+#define GD32_SERIAL_USART2_PRIORITY 10
+#define GD32_SERIAL_UART3_PRIORITY 10
+#define GD32_SERIAL_UART4_PRIORITY 10
+#define GD32_SERIAL_USART0_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_SERIAL_USART1_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_SERIAL_USART2_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_SERIAL_UART3_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_SERIAL_UART4_TRIGGER ECLIC_TRIGGER_DEFAULT
+
+/*
+ * SPI driver system settings.
+ */
+#define GD32_SPI_USE_SPI0 FALSE
+#define GD32_SPI_USE_SPI1 FALSE
+#define GD32_SPI_USE_SPI2 FALSE
+#define GD32_SPI_SPI0_DMA_PRIORITY 1
+#define GD32_SPI_SPI1_DMA_PRIORITY 1
+#define GD32_SPI_SPI2_DMA_PRIORITY 1
+#define GD32_SPI_SPI0_IRQ_PRIORITY 10
+#define GD32_SPI_SPI1_IRQ_PRIORITY 10
+#define GD32_SPI_SPI2_IRQ_PRIORITY 10
+#define GD32_SPI_DMA_ERROR_HOOK(spip) osalSysHalt("DMA failure")
+
+/*
+ * ST driver system settings.
+ */
+#define GD32_ST_IRQ_PRIORITY 10
+#define GD32_ST_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_ST_USE_TIMER 1
+
+/*
+ * UART driver system settings.
+ */
+#define GD32_UART_USE_USART0 FALSE
+#define GD32_UART_USE_USART1 FALSE
+#define GD32_UART_USE_USART2 FALSE
+#define GD32_UART_USE_UART3 FALSE
+#define GD32_UART_USE_UART4 FALSE
+#define GD32_UART_USART0_IRQ_PRIORITY 10
+#define GD32_UART_USART1_IRQ_PRIORITY 10
+#define GD32_UART_USART2_IRQ_PRIORITY 10
+#define GD32_UART_UART3_IRQ_PRIORITY 10
+#define GD32_UART_UART4_IRQ_PRIORITY 10
+#define GD32_UART_USART0_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_UART_USART1_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_UART_USART2_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_UART_UART3_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_UART_UART4_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_UART_USART0_DMA_PRIORITY 3
+#define GD32_UART_USART1_DMA_PRIORITY 3
+#define GD32_UART_USART2_DMA_PRIORITY 3
+#define GD32_UART_UART3_DMA_PRIORITY 3
+#define GD32_UART_UART4_DMA_PRIORITY 3
+#define GD32_UART_DMA_ERROR_HOOK(uartp) osalSysHalt("DMA failure")
+
+/*
+ * USB driver system settings.
+ */
+#define GD32_USB_USE_USBFS TRUE
+#define GD32_USB_USBFS_IRQ_PRIORITY 10
+#define GD32_USB_USBFS_IRQ_TRIGGER ECLIC_TRIGGER_DEFAULT
+#define GD32_USB_USBFS_RX_FIFO_SIZE 256
+
+/*
+ * WDG driver system settings.
+ */
+#define GD32_WDG_USE_FWDGT FALSE
diff --git a/platforms/chibios/drivers/analog.c b/platforms/chibios/drivers/analog.c
index 8c476fcac2..eb437665f1 100644
--- a/platforms/chibios/drivers/analog.c
+++ b/platforms/chibios/drivers/analog.c
@@ -38,7 +38,7 @@
// Otherwise assume V3
#if defined(STM32F0XX) || defined(STM32L0XX)
# define USE_ADCV1
-#elif defined(STM32F1XX) || defined(STM32F2XX) || defined(STM32F4XX)
+#elif defined(STM32F1XX) || defined(STM32F2XX) || defined(STM32F4XX) || defined(GD32VF103)
# define USE_ADCV2
#endif
@@ -75,7 +75,7 @@
/* User configurable ADC options */
#ifndef ADC_COUNT
-# if defined(STM32F0XX) || defined(STM32F1XX) || defined(STM32F4XX)
+# if defined(STM32F0XX) || defined(STM32F1XX) || defined(STM32F4XX) || defined(GD32VF103)
# define ADC_COUNT 1
# elif defined(STM32F3XX)
# define ADC_COUNT 4
@@ -122,8 +122,8 @@ static ADCConversionGroup adcConversionGroup = {
.cfgr1 = ADC_CFGR1_CONT | ADC_RESOLUTION,
.smpr = ADC_SAMPLING_RATE,
#elif defined(USE_ADCV2)
-# if !defined(STM32F1XX)
- .cr2 = ADC_CR2_SWSTART, // F103 seem very unhappy with, F401 seems very unhappy without...
+# if !defined(STM32F1XX) && !defined(GD32VF103)
+ .cr2 = ADC_CR2_SWSTART, // F103 seem very unhappy with, F401 seems very unhappy without...
# endif
.smpr2 = ADC_SMPR2_SMP_AN0(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN1(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN2(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN3(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN4(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN5(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN6(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN7(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN8(ADC_SAMPLING_RATE) | ADC_SMPR2_SMP_AN9(ADC_SAMPLING_RATE),
.smpr1 = ADC_SMPR1_SMP_AN10(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN11(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN12(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN13(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN14(ADC_SAMPLING_RATE) | ADC_SMPR1_SMP_AN15(ADC_SAMPLING_RATE),
@@ -220,7 +220,7 @@ __attribute__((weak)) adc_mux pinToMux(pin_t pin) {
case F9: return TO_MUX( ADC_CHANNEL_IN7, 2 );
case F10: return TO_MUX( ADC_CHANNEL_IN8, 2 );
# endif
-#elif defined(STM32F1XX)
+#elif defined(STM32F1XX) || defined(GD32VF103)
case A0: return TO_MUX( ADC_CHANNEL_IN0, 0 );
case A1: return TO_MUX( ADC_CHANNEL_IN1, 0 );
case A2: return TO_MUX( ADC_CHANNEL_IN2, 0 );
diff --git a/platforms/chibios/drivers/ws2812.c b/platforms/chibios/drivers/ws2812.c
index ffcdcff242..b46c46ae57 100644
--- a/platforms/chibios/drivers/ws2812.c
+++ b/platforms/chibios/drivers/ws2812.c
@@ -6,7 +6,7 @@
/* Adapted from https://github.com/bigjosh/SimpleNeoPixelDemo/ */
#ifndef NOP_FUDGE
-# if defined(STM32F0XX) || defined(STM32F1XX) || defined(STM32F3XX) || defined(STM32F4XX) || defined(STM32L0XX)
+# if defined(STM32F0XX) || defined(STM32F1XX) || defined(GD32VF103) || defined(STM32F3XX) || defined(STM32F4XX) || defined(STM32L0XX)
# define NOP_FUDGE 0.4
# else
# error("NOP_FUDGE configuration required")
diff --git a/platforms/chibios/flash.mk b/platforms/chibios/flash.mk
index c0b32c2f2b..31f69595da 100644
--- a/platforms/chibios/flash.mk
+++ b/platforms/chibios/flash.mk
@@ -82,6 +82,8 @@ else ifeq ($(strip $(MCU_FAMILY)),MIMXRT1062)
$(UNSYNC_OUTPUT_CMD) && $(call EXEC_TEENSY)
else ifeq ($(strip $(MCU_FAMILY)),STM32)
$(UNSYNC_OUTPUT_CMD) && $(call EXEC_DFU_UTIL)
+else ifeq ($(strip $(MCU_FAMILY)),GD32V)
+ $(UNSYNC_OUTPUT_CMD) && $(call EXEC_DFU_UTIL)
else
$(PRINT_OK); $(SILENT) || printf "$(MSG_FLASH_BOOTLOADER)"
endif
diff --git a/quantum/mcu_selection.mk b/quantum/mcu_selection.mk
index 622b4a82f8..7c4a617af0 100644
--- a/quantum/mcu_selection.mk
+++ b/quantum/mcu_selection.mk
@@ -541,6 +541,37 @@ ifneq (,$(filter $(MCU),STM32L412 STM32L422))
UF2_FAMILY ?= STM32L4
endif
+ifneq ($(findstring GD32VF103, $(MCU)),)
+ # RISC-V
+ MCU = risc-v
+
+ # RISC-V extensions and abi configuration
+ MCU_ARCH = rv32imac
+ MCU_ABI = ilp32
+ MCU_CMODEL = medlow
+
+ ## chip/board settings
+ # - the next two should match the directories in
+ # <chibios>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+ MCU_FAMILY = GD32V
+ MCU_SERIES = GD32VF103
+
+ # Linker script to use
+ # - it should exist either in <chibios>/os/common/startup/RISCV-ECLIC/compilers/GCC/ld/
+ # or <keyboard_dir>/ld/
+ MCU_LDSCRIPT ?= GD32VF103xB
+
+ # Startup code to use
+ # - it should exist in <chibios>/os/common/startup/RISCV-ECLIC/compilers/GCC/mk/
+ MCU_STARTUP ?= gd32vf103
+
+ # Board: it should exist either in <chibios>/os/hal/boards/,
+ # <keyboard_dir>/boards/, or drivers/boards/
+ BOARD ?= SIPEED_LONGAN_NANO
+
+ USE_FPU ?= no
+endif
+
ifneq (,$(filter $(MCU),at90usb162 atmega16u2 atmega32u2 atmega16u4 atmega32u4 at90usb646 at90usb647 at90usb1286 at90usb1287))
PROTOCOL = LUFA
diff --git a/tmk_core/chibios.mk b/tmk_core/chibios.mk
index 18839710be..cae840fa4f 100644
--- a/tmk_core/chibios.mk
+++ b/tmk_core/chibios.mk
@@ -27,29 +27,62 @@ endif
OPT_OS = chibios
CHIBIOS = $(TOP_DIR)/lib/chibios
CHIBIOS_CONTRIB = $(TOP_DIR)/lib/chibios-contrib
-# Startup files. Try a few different locations, for compability with old versions and
-# for things hardware in the contrib repository
-STARTUP_MK = $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC/mk/startup_$(MCU_STARTUP).mk
-ifeq ("$(wildcard $(STARTUP_MK))","")
- STARTUP_MK = $(CHIBIOS)/os/common/startup/ARMCMx/compilers/GCC/mk/startup_$(MCU_STARTUP).mk
- ifeq ("$(wildcard $(STARTUP_MK))","")
- STARTUP_MK = $(CHIBIOS_CONTRIB)/os/common/startup/ARMCMx/compilers/GCC/mk/startup_$(MCU_STARTUP).mk
- endif
+
+#
+# Startup, Port and Platform support selection
+##############################################################################
+
+ifeq ($(strip $(MCU)), risc-v)
+ # RISC-V Support
+ # As of 7.4.2021 there is only one supported RISC-V platform in Chibios-Contrib,
+ # therefore all required settings are hard-coded
+ STARTUP_MK = $(CHIBIOS_CONTRIB)/os/common/startup/RISCV-ECLIC/compilers/GCC/mk/startup_$(MCU_STARTUP).mk
+ PORT_V = $(CHIBIOS_CONTRIB)/os/common/ports/RISCV-ECLIC/compilers/GCC/mk/port.mk
+ RULESPATH = $(CHIBIOS_CONTRIB)/os/common/startup/RISCV-ECLIC/compilers/GCC
+ PLATFORM_MK = $(CHIBIOS_CONTRIB)/os/hal/ports/GD/GD32VF103/platform.mk
+else
+ # ARM Support
+ # Startup files. Try a few different locations, for compability with old versions and
+ # for things hardware in the contrib repository
+ STARTUP_MK = $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC/mk/startup_$(MCU_STARTUP).mk
+ ifeq ("$(wildcard $(STARTUP_MK))","")
+ STARTUP_MK = $(CHIBIOS)/os/common/startup/ARMCMx/compilers/GCC/mk/startup_$(MCU_STARTUP).mk
+ ifeq ("$(wildcard $(STARTUP_MK))","")
+ STARTUP_MK = $(CHIBIOS_CONTRIB)/os/common/startup/ARMCMx/compilers/GCC/mk/startup_$(MCU_STARTUP).mk
+ endif
+ endif
+
+ # Compability with old version
+ PORT_V = $(CHIBIOS)/os/rt/ports/ARMCMx/compilers/GCC/mk/port_v$(ARMV)m.mk
+ ifeq ("$(wildcard $(PORT_V))","")
+ PORT_V = $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC/mk/port_v$(ARMV)m.mk
+ endif
+
+ RULESPATH = $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC
+ ifeq ("$(wildcard $(RULESPATH)/rules.mk)","")
+ RULESPATH = $(CHIBIOS)/os/common/startup/ARMCMx/compilers/GCC
+ endif
endif
-include $(STARTUP_MK)
-# HAL-OSAL files (optional).
-include $(CHIBIOS)/os/hal/hal.mk
ifeq ("$(PLATFORM_NAME)","")
- PLATFORM_NAME = platform
+ PLATFORM_NAME = platform
endif
-PLATFORM_MK = $(CHIBIOS)/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)/$(PLATFORM_NAME).mk
ifeq ("$(wildcard $(PLATFORM_MK))","")
-PLATFORM_MK = $(CHIBIOS_CONTRIB)/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)/$(PLATFORM_NAME).mk
+ PLATFORM_MK = $(CHIBIOS)/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)/$(PLATFORM_NAME).mk
+ ifeq ("$(wildcard $(PLATFORM_MK))","")
+ PLATFORM_MK = $(CHIBIOS_CONTRIB)/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)/$(PLATFORM_NAME).mk
+ endif
endif
+
+include $(STARTUP_MK)
+include $(PORT_V)
include $(PLATFORM_MK)
+#
+# Board support selection.
+##############################################################################
+
BOARD_MK :=
ifneq ("$(wildcard $(KEYBOARD_PATH_5)/boards/$(BOARD)/board.mk)","")
@@ -77,13 +110,19 @@ else ifneq ("$(wildcard $(TOP_DIR)/platforms/chibios/boards/$(BOARD)/board/board
endif
ifeq ("$(wildcard $(BOARD_MK))","")
- BOARD_MK = $(CHIBIOS)/os/hal/boards/$(BOARD)/board.mk
- ifeq ("$(wildcard $(BOARD_MK))","")
- BOARD_MK = $(CHIBIOS_CONTRIB)/os/hal/boards/$(BOARD)/board.mk
- endif
+ BOARD_MK = $(CHIBIOS)/os/hal/boards/$(BOARD)/board.mk
+ ifeq ("$(wildcard $(BOARD_MK))","")
+ BOARD_MK = $(CHIBIOS_CONTRIB)/os/hal/boards/$(BOARD)/board.mk
+ endif
endif
-# Bootloader address
+include $(BOARD_MK)
+
+#
+# Bootloader selection.
+##############################################################################
+
+# Set bootloader address if supplied.
ifdef STM32_BOOTLOADER_ADDRESS
OPT_DEFS += -DSTM32_BOOTLOADER_ADDRESS=$(STM32_BOOTLOADER_ADDRESS)
endif
@@ -113,6 +152,10 @@ else ifneq ("$(wildcard $(BOARD_PATH)/configs/bootloader_defs.h)","")
OPT_DEFS += -include $(BOARD_PATH)/configs/bootloader_defs.h
endif
+#
+# ChibiOS config selection.
+##############################################################################
+
# Work out the config file directories
ifneq ("$(wildcard $(KEYBOARD_PATH_5)/chconf.h)","")
CHCONFDIR = $(KEYBOARD_PATH_5)
@@ -130,6 +173,10 @@ else ifneq ("$(wildcard $(TOP_DIR)/platforms/boards/chibios/common/configs/chcon
CHCONFDIR = $(TOP_DIR)/platforms/chibios/boards/common/configs
endif
+#
+# HAL config selection.
+##############################################################################
+
ifneq ("$(wildcard $(KEYBOARD_PATH_5)/halconf.h)","")
HALCONFDIR = $(KEYBOARD_PATH_5)
else ifneq ("$(wildcard $(KEYBOARD_PATH_4)/halconf.h)","")
@@ -146,40 +193,10 @@ else ifneq ("$(wildcard $(TOP_DIR)/platforms/chibios/boards/common/configs/halco
HALCONFDIR = $(TOP_DIR)/platforms/chibios/boards/common/configs
endif
-# HAL-OSAL files (optional).
-include $(CHIBIOS)/os/hal/hal.mk
-
-ifeq ("$(PLATFORM_NAME)","")
- PLATFORM_NAME = platform
-endif
-
-PLATFORM_MK = $(CHIBIOS)/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)/$(PLATFORM_NAME).mk
-ifeq ("$(wildcard $(PLATFORM_MK))","")
-PLATFORM_MK = $(CHIBIOS_CONTRIB)/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)/$(PLATFORM_NAME).mk
-endif
-include $(PLATFORM_MK)
-
-
-include $(BOARD_MK)
--include $(CHIBIOS)/os/hal/osal/rt/osal.mk # ChibiOS <= 19.x
--include $(CHIBIOS)/os/hal/osal/rt-nil/osal.mk # ChibiOS >= 20.x
-# RTOS files (optional).
-include $(CHIBIOS)/os/rt/rt.mk
-# Compability with old version
-PORT_V = $(CHIBIOS)/os/rt/ports/ARMCMx/compilers/GCC/mk/port_v$(ARMV)m.mk
-ifeq ("$(wildcard $(PORT_V))","")
-PORT_V = $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC/mk/port_v$(ARMV)m.mk
-endif
-include $(PORT_V)
-# Other files (optional).
-include $(CHIBIOS)/os/hal/lib/streams/streams.mk
-
-RULESPATH = $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC
-ifeq ("$(wildcard $(RULESPATH)/rules.mk)","")
-RULESPATH = $(CHIBIOS)/os/common/startup/ARMCMx/compilers/GCC
-endif
+#
+# Linker script selection.
+##############################################################################
-# Define linker script file here
ifneq ("$(wildcard $(KEYBOARD_PATH_5)/ld/$(MCU_LDSCRIPT).ld)","")
LDSCRIPT = $(KEYBOARD_PATH_5)/ld/$(MCU_LDSCRIPT).ld
else ifneq ("$(wildcard $(KEYBOARD_PATH_4)/ld/$(MCU_LDSCRIPT).ld)","")
@@ -202,17 +219,30 @@ else
LDSCRIPT = $(STARTUPLD)/$(MCU_LDSCRIPT).ld
endif
+#
+# Include ChibiOS makefiles.
+##############################################################################
+
+# HAL-OSAL files (optional).
+include $(CHIBIOS)/os/hal/hal.mk
+-include $(CHIBIOS)/os/hal/osal/rt/osal.mk # ChibiOS <= 19.x
+-include $(CHIBIOS)/os/hal/osal/rt-nil/osal.mk # ChibiOS >= 20.x
+# RTOS files (optional).
+include $(CHIBIOS)/os/rt/rt.mk
+# Other files (optional).
+include $(CHIBIOS)/os/hal/lib/streams/streams.mk
+
CHIBISRC = $(STARTUPSRC) \
- $(KERNSRC) \
- $(PORTSRC) \
- $(OSALSRC) \
- $(HALSRC) \
- $(PLATFORMSRC) \
- $(BOARDSRC) \
- $(STREAMSSRC) \
- $(CHIBIOS)/os/various/syscalls.c \
- $(PLATFORM_COMMON_DIR)/syscall-fallbacks.c \
- $(PLATFORM_COMMON_DIR)/wait.c
+ $(KERNSRC) \
+ $(PORTSRC) \
+ $(OSALSRC) \
+ $(HALSRC) \
+ $(PLATFORMSRC) \
+ $(BOARDSRC) \
+ $(STREAMSSRC) \
+ $(CHIBIOS)/os/various/syscalls.c \
+ $(PLATFORM_COMMON_DIR)/syscall-fallbacks.c \
+ $(PLATFORM_COMMON_DIR)/wait.c
# Ensure the ASM files are not subjected to LTO -- it'll strip out interrupt handlers otherwise.
QUANTUM_LIB_SRC += $(STARTUPASM) $(PORTASM) $(OSALASM) $(PLATFORMASM)
@@ -247,9 +277,9 @@ else ifneq ("$(wildcard $(TOP_DIR)/platforms/chibios/boards/$(BOARD)/configs/hal
endif
ifeq ($(strip $(USE_CHIBIOS_CONTRIB)),yes)
- include $(CHIBIOS_CONTRIB)/os/hal/hal.mk
- CHIBISRC += $(PLATFORMSRC_CONTRIB) $(HALSRC_CONTRIB)
- EXTRAINCDIRS += $(PLATFORMINC_CONTRIB) $(HALINC_CONTRIB) $(CHIBIOS_CONTRIB)/os/various
+ include $(CHIBIOS_CONTRIB)/os/hal/hal.mk
+ CHIBISRC += $(PLATFORMSRC_CONTRIB) $(HALSRC_CONTRIB)
+ EXTRAINCDIRS += $(PLATFORMINC_CONTRIB) $(HALINC_CONTRIB) $(CHIBIOS_CONTRIB)/os/various
endif
#
@@ -267,61 +297,123 @@ ifneq ("$(wildcard $(BOARD_PATH)/configs/post_config.h)","")
endif
##############################################################################
-# Compiler settings
+# Compiler and Linker configuration
#
-CC = arm-none-eabi-gcc
-OBJCOPY = arm-none-eabi-objcopy
-OBJDUMP = arm-none-eabi-objdump
-SIZE = arm-none-eabi-size
-AR = arm-none-eabi-ar
-NM = arm-none-eabi-nm
-HEX = $(OBJCOPY) -O $(FORMAT)
-EEP =
-BIN = $(OBJCOPY) -O binary
-
-THUMBFLAGS = -DTHUMB_PRESENT -mno-thumb-interwork -DTHUMB_NO_INTERWORKING -mthumb -DTHUMB
-
-COMPILEFLAGS += -fomit-frame-pointer
-COMPILEFLAGS += -falign-functions=16
-COMPILEFLAGS += -ffunction-sections
-COMPILEFLAGS += -fdata-sections
-COMPILEFLAGS += -fno-common
-COMPILEFLAGS += -fshort-wchar
-COMPILEFLAGS += $(THUMBFLAGS)
-
-# FPU options default (Cortex-M4 and Cortex-M7 single precision).
-USE_FPU_OPT ?= -mfloat-abi=hard -mfpu=fpv4-sp-d16 -fsingle-precision-constant
-
-# FPU-related options
-USE_FPU ?= no
-ifneq ($(USE_FPU),no)
- COMPILEFLAGS += $(USE_FPU_OPT)
- OPT_DEFS += -DCORTEX_USE_FPU=TRUE
+
+# Use defined stack sizes of the main thread in linker scripts
+LDSYMBOLS =--defsym=__process_stack_size__=$(USE_PROCESS_STACKSIZE),--defsym=__main_stack_size__=$(USE_EXCEPTIONS_STACKSIZE)
+
+# Shared Compiler flags for all toolchains
+SHARED_CFLAGS = -fomit-frame-pointer \
+ -ffunction-sections \
+ -fdata-sections \
+ -fno-common \
+ -fshort-wchar
+
+# Shared Linker flags for all toolchains
+SHARED_LDFLAGS = -T $(LDSCRIPT) \
+ -Wl,$(LDSYMBOLS) \
+ -Wl,--gc-sections \
+ -nostartfiles
+
+ifeq ($(strip $(MCU)), risc-v)
+ # RISC-V toolchain specific configuration
+ # Find suitable GCC compiler
+ ifeq ($(strip $(TOOLCHAIN)),)
+ ifneq ($(shell which riscv32-unknown-elf-gcc 2>/dev/null),)
+ TOOLCHAIN = riscv32-unknown-elf-
+ else
+ ifneq ($(shell which riscv64-unknown-elf-gcc 2>/dev/null),)
+ TOOLCHAIN = riscv64-unknown-elf-
+ else
+ $(error "No RISC-V toolchain found. Can't find riscv32-unknown-elf-gcc or riscv64-unknown-elf-gcc found in your systems PATH variable. Please install a valid toolchain and make it accessible!")
+ endif
+ endif
+ endif
+
+ # Default to compiling with picolibc for RISC-V targets if available,
+ # which is available by default on current (bullseye) debian based systems.
+ ifeq ($(shell $(TOOLCHAIN)gcc --specs=picolibc.specs -E - 2>/dev/null >/dev/null </dev/null ; echo $$?),0)
+ # Toolchain specific Compiler flags
+ # Note that we still link with our own linker script
+ # by providing it via the -T flag above.
+ TOOLCHAIN_CFLAGS = --specs=picolibc.specs
+
+ # Tell QMK that we are compiling with picolibc.
+ OPT_DEFS += -DUSE_PICOLIBC
+ endif
+
+ # MCU architecture flags
+ MCUFLAGS = -march=$(MCU_ARCH) \
+ -mabi=$(MCU_ABI) \
+ -mcmodel=$(MCU_CMODEL) \
+ -mstrict-align
else
- OPT_DEFS += -DCORTEX_USE_FPU=FALSE
+ # ARM toolchain specific configuration
+ TOOLCHAIN ?= arm-none-eabi-
+
+ # Toolchain specific Linker flags
+ TOOLCHAIN_LDFLAGS = -Wl,--no-wchar-size-warning \
+ --specs=nano.specs
+
+ # MCU architecture flags
+ MCUFLAGS = -mcpu=$(MCU) \
+ -mthumb -DTHUMB_PRESENT \
+ -mno-thumb-interwork -DTHUMB_NO_INTERWORKING \
+ -mno-unaligned-access
+
+ # Some ARM cores like the M4 and M7 have floating point units which can be enabled
+ USE_FPU ?= no
+
+ ifneq ($(USE_FPU),no)
+ OPT_DEFS += -DCORTEX_USE_FPU=TRUE
+
+ # Default is single precision floats
+ USE_FPU_OPT ?= -mfloat-abi=hard \
+ -mfpu=fpv4-sp-d16 \
+ -fsingle-precision-constant
+
+ MCUFLAGS += $(USE_FPU_OPT)
+ else
+ OPT_DEFS += -DCORTEX_USE_FPU=FALSE
+ endif
endif
-CFLAGS += $(COMPILEFLAGS)
+# Assembler flags
+ASFLAGS += $(SHARED_ASFLAGS) $(TOOLCHAIN_ASFLAGS)
-ASFLAGS += $(THUMBFLAGS)
+# C Compiler flags
+CFLAGS += $(SHARED_CFLAGS) $(TOOLCHAIN_CFLAGS)
-CXXFLAGS += $(COMPILEFLAGS)
-CXXFLAGS += -fno-rtti
+# C++ Compiler flags
+CXXFLAGS += $(CFLAGS) $(SHARED_CXXFLAGS) $(TOOLCHAIN_CXXFLAGS) -fno-rtti
-LDFLAGS +=-Wl,--gc-sections
-LDFLAGS +=-Wl,--no-wchar-size-warning
-LDFLAGS += -mno-thumb-interwork -mthumb
-LDSYMBOLS =,--defsym=__process_stack_size__=$(USE_PROCESS_STACKSIZE)
-LDSYMBOLS :=$(LDSYMBOLS),--defsym=__main_stack_size__=$(USE_EXCEPTIONS_STACKSIZE)
-LDFLAGS += -Wl,--script=$(LDSCRIPT)$(LDSYMBOLS)
-LDFLAGS += --specs=nano.specs
+# Linker flags
+LDFLAGS += $(SHARED_LDFLAGS) $(TOOLCHAIN_LDFLAGS) $(MCUFLAGS)
+# Tell QMK that we are hosting it on ChibiOS.
OPT_DEFS += -DPROTOCOL_CHIBIOS
-# Workaround to stop ChibiOS from complaining about new GCC -- it's been fixed for 7/8/9 already
-OPT_DEFS += -DPORT_IGNORE_GCC_VERSION_CHECK=1
+# Speed up recompilations by opt-in usage of ccache
+USE_CCACHE ?= no
+ifneq ($(USE_CCACHE),no)
+ CC_PREFIX ?= ccache
+endif
+
+# Construct GCC toolchain
+CC = $(CC_PREFIX) $(TOOLCHAIN)gcc
+OBJCOPY = $(TOOLCHAIN)objcopy
+OBJDUMP = $(TOOLCHAIN)objdump
+SIZE = $(TOOLCHAIN)size
+AR = $(TOOLCHAIN)ar
+NM = $(TOOLCHAIN)nm
+HEX = $(OBJCOPY) -O $(FORMAT)
+EEP =
+BIN = $(OBJCOPY) -O binary
-MCUFLAGS = -mcpu=$(MCU)
+##############################################################################
+# Make targets
+#
DEBUG = gdb
diff --git a/tmk_core/common/chibios/bootloader.c b/tmk_core/common/chibios/bootloader.c
index f9514ee5f3..5cadadeeeb 100644
--- a/tmk_core/common/chibios/bootloader.c
+++ b/tmk_core/common/chibios/bootloader.c
@@ -95,6 +95,28 @@ void enter_bootloader_mode_if_requested(void) {
}
}
+#elif defined(GD32VF103)
+
+# define DBGMCU_KEY_UNLOCK 0x4B5A6978
+# define DBGMCU_CMD_RESET 0x1
+
+__IO uint32_t *DBGMCU_KEY = (uint32_t *)DBGMCU_BASE + 0x0CU;
+__IO uint32_t *DBGMCU_CMD = (uint32_t *)DBGMCU_BASE + 0x08U;
+
+__attribute__((weak)) void bootloader_jump(void) {
+ /* The MTIMER unit of the GD32VF103 doesn't have the MSFRST
+ * register to generate a software reset request.
+ * BUT instead two undocumented registers in the debug peripheral
+ * that allow issueing a software reset. WHO would need the MSFRST
+ * register anyway? Source:
+ * https://github.com/esmil/gd32vf103inator/blob/master/include/gd32vf103/dbg.h */
+ *DBGMCU_KEY = DBGMCU_KEY_UNLOCK;
+ *DBGMCU_CMD = DBGMCU_CMD_RESET;
+}
+
+void enter_bootloader_mode_if_requested(void) { /* Jumping to bootloader is not possible from user code. */
+}
+
#elif defined(KL2x) || defined(K20x) || defined(MK66F18) || defined(MIMXRT1062) // STM32_BOOTLOADER_DUAL_BANK // STM32_BOOTLOADER_ADDRESS
/* Kinetis */
diff --git a/tmk_core/common/chibios/chibios_config.h b/tmk_core/common/chibios/chibios_config.h
index f065948028..ad2f808a95 100644
--- a/tmk_core/common/chibios/chibios_config.h
+++ b/tmk_core/common/chibios/chibios_config.h
@@ -39,6 +39,25 @@
# endif
#endif
+// GD32 compatibility
+#if defined(MCU_GD32V)
+# define CPU_CLOCK GD32_SYSCLK
+
+# if defined(GD32VF103)
+# define USE_GPIOV1
+# define USE_I2CV1
+# define PAL_MODE_ALTERNATE_OPENDRAIN PAL_MODE_GD32_ALTERNATE_OPENDRAIN
+# define PAL_MODE_ALTERNATE_PUSHPULL PAL_MODE_GD32_ALTERNATE_PUSHPULL
+# endif
+#endif
+
+#if defined(GD32VF103)
+/* This chip has the same API as STM32F103, but uses different names for literally the same thing.
+ * As of 4.7.2021 QMK is tailored to use STM32 defines/names, for compatibility sake
+ * we just redefine the GD32 names. */
+# include "gd32v_compatibility.h"
+#endif
+
// teensy compatibility
#if defined(MCU_KINETIS)
# define CPU_CLOCK KINETIS_SYSCLK_FREQUENCY
diff --git a/tmk_core/common/chibios/eeprom_stm32_defs.h b/tmk_core/common/chibios/eeprom_stm32_defs.h
index 3499796264..66904f247f 100644
--- a/tmk_core/common/chibios/eeprom_stm32_defs.h
+++ b/tmk_core/common/chibios/eeprom_stm32_defs.h
@@ -18,7 +18,7 @@
#include <hal.h>
#if !defined(FEE_PAGE_SIZE) || !defined(FEE_PAGE_COUNT)
-# if defined(STM32F103xB) || defined(STM32F042x6)
+# if defined(STM32F103xB) || defined(STM32F042x6) || defined(GD32VF103C8) || defined(GD32VF103CB)
# ifndef FEE_PAGE_SIZE
# define FEE_PAGE_SIZE 0x400 // Page size = 1KByte
# endif
@@ -45,7 +45,9 @@
#if !defined(FEE_MCU_FLASH_SIZE)
# if defined(STM32F042x6)
# define FEE_MCU_FLASH_SIZE 32 // Size in Kb
-# elif defined(STM32F103xB) || defined(STM32F072xB) || defined(STM32F070xB)
+# elif defined(GD32VF103C8)
+# define FEE_MCU_FLASH_SIZE 64 // Size in Kb
+# elif defined(STM32F103xB) || defined(STM32F072xB) || defined(STM32F070xB) || defined(GD32VF103CB)
# define FEE_MCU_FLASH_SIZE 128 // Size in Kb
# elif defined(STM32F303xC) || defined(STM32F401xC)
# define FEE_MCU_FLASH_SIZE 256 // Size in Kb
diff --git a/tmk_core/common/chibios/flash_stm32.c b/tmk_core/common/chibios/flash_stm32.c
index 35fb0eebdb..72c41b8b78 100644
--- a/tmk_core/common/chibios/flash_stm32.c
+++ b/tmk_core/common/chibios/flash_stm32.c
@@ -23,6 +23,11 @@
# define FLASH_SR_WRPERR FLASH_SR_WRPRTERR
#endif
+#if defined(MCU_GD32V)
+/* GigaDevice GD32VF103 is a STM32F103 clone at heart. */
+# include "gd32v_compatibility.h"
+#endif
+
#if defined(STM32F4XX)
# define FLASH_SR_PGERR (FLASH_SR_PGSERR | FLASH_SR_PGPERR | FLASH_SR_PGAERR)
diff --git a/tmk_core/common/chibios/gd32v_compatibility.h b/tmk_core/common/chibios/gd32v_compatibility.h
new file mode 100644
index 0000000000..f4dcfd8c55
--- /dev/null
+++ b/tmk_core/common/chibios/gd32v_compatibility.h
@@ -0,0 +1,120 @@
+/* Copyright 2021 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+/* GD32VF103 has the same API as STM32F103, but uses different names for literally the same thing.
+ * As of 23.7.2021 QMK is tailored to use STM32 defines/names, for compatibility sake
+ * we just redefine the GD32 names. */
+
+/* Close your eyes kids. */
+#define MCU_STM32
+
+/* AFIO redefines */
+#define MAPR PCF0
+#define AFIO_MAPR_USART1_REMAP AFIO_PCF0_USART0_REMAP
+#define AFIO_MAPR_USART2_REMAP AFIO_PCF0_USART1_REMAP
+#define AFIO_MAPR_USART3_REMAP_PARTIALREMAP AFIO_PCF0_USART2_REMAP_PARTIALREMAP
+#define AFIO_MAPR_USART3_REMAP_FULLREMAP AFIO_PCF0_USART2_REMAP_FULLREMAP
+
+/* DMA redefines. */
+#define STM32_DMA_STREAM(stream) GD32_DMA_STREAM(stream)
+#define STM32_DMA_STREAM_ID(peripheral, channel) GD32_DMA_STREAM_ID(peripheral - 1, channel - 1)
+#define STM32_DMA_CR_DIR_M2P GD32_DMA_CTL_DIR_M2P
+#define STM32_DMA_CR_PSIZE_WORD GD32_DMA_CTL_PWIDTH_WORD
+#define STM32_DMA_CR_MSIZE_WORD GD32_DMA_CTL_MWIDTH_WORD
+#define STM32_DMA_CR_MINC GD32_DMA_CTL_MNAGA
+#define STM32_DMA_CR_CIRC GD32_DMA_CTL_CMEN
+#define STM32_DMA_CR_PL GD32_DMA_CTL_PRIO
+#define STM32_DMA_CR_CHSEL GD32_DMA_CTL_CHSEL
+#define cr1 ctl0
+#define cr2 ctl1
+#define cr3 ctl2
+#define dier dmainten
+
+/* ADC redefines */
+#if HAL_USE_ADC
+# define STM32_ADC_USE_ADC1 GD32_ADC_USE_ADC0
+
+# define smpr1 sampt0
+# define smpr2 sampt1
+# define sqr1 rsq0
+# define sqr2 rsq1
+# define sqr3 rsq2
+
+# define ADC_SMPR2_SMP_AN0 ADC_SAMPT1_SMP_SPT0
+# define ADC_SMPR2_SMP_AN1 ADC_SAMPT1_SMP_SPT1
+# define ADC_SMPR2_SMP_AN2 ADC_SAMPT1_SMP_SPT2
+# define ADC_SMPR2_SMP_AN3 ADC_SAMPT1_SMP_SPT3
+# define ADC_SMPR2_SMP_AN4 ADC_SAMPT1_SMP_SPT4
+# define ADC_SMPR2_SMP_AN5 ADC_SAMPT1_SMP_SPT5
+# define ADC_SMPR2_SMP_AN6 ADC_SAMPT1_SMP_SPT6
+# define ADC_SMPR2_SMP_AN7 ADC_SAMPT1_SMP_SPT7
+# define ADC_SMPR2_SMP_AN8 ADC_SAMPT1_SMP_SPT8
+# define ADC_SMPR2_SMP_AN9 ADC_SAMPT1_SMP_SPT9
+
+# define ADC_SMPR1_SMP_AN10 ADC_SAMPT0_SMP_SPT10
+# define ADC_SMPR1_SMP_AN11 ADC_SAMPT0_SMP_SPT11
+# define ADC_SMPR1_SMP_AN12 ADC_SAMPT0_SMP_SPT12
+# define ADC_SMPR1_SMP_AN13 ADC_SAMPT0_SMP_SPT13
+# define ADC_SMPR1_SMP_AN14 ADC_SAMPT0_SMP_SPT14
+# define ADC_SMPR1_SMP_AN15 ADC_SAMPT0_SMP_SPT15
+
+# define ADC_SQR3_SQ1_N ADC_RSQ2_RSQ1_N
+#endif
+
+/* FLASH redefines */
+#if defined(EEPROM_ENABLE)
+# define SR STAT
+# define FLASH_SR_BSY FLASH_STAT_BUSY
+# define FLASH_SR_PGERR FLASH_STAT_PGERR
+# define FLASH_SR_EOP FLASH_STAT_ENDF
+# define FLASH_SR_WRPRTERR FLASH_STAT_WPERR
+# define FLASH_SR_WRPERR FLASH_SR_WRPRTERR
+# define FLASH_OBR_OPTERR FLASH_OBSTAT_OBERR
+# define AR ADDR
+# define CR CTL
+# define FLASH_CR_PER FLASH_CTL_PER
+# define FLASH_CR_STRT FLASH_CTL_START
+# define FLASH_CR_LOCK FLASH_CTL_LK
+# define FLASH_CR_PG FLASH_CTL_PG
+# define KEYR KEY
+#endif
+
+/* Serial USART redefines. */
+#if HAL_USE_SERIAL
+# if !defined(SERIAL_USART_CR1)
+# define SERIAL_USART_CR1 (USART_CTL0_PCEN | USART_CTL0_PM | USART_CTL0_WL) // parity enable, odd parity, 9 bit length
+# endif
+# if !defined(SERIAL_USART_CR2)
+# define SERIAL_USART_CR2 (USART_CTL1_STB_1) // 2 stop bits
+# endif
+# if !defined(SERIAL_USART_CR3)
+# define SERIAL_USART_CR3 0x0
+# endif
+# define USART_CR3_HDSEL USART_CTL2_HDEN
+# define CCR CHCV
+#endif
+
+/* SPI redefines. */
+#if HAL_USE_SPI
+# define SPI_CR1_LSBFIRST SPI_CTL0_LF
+# define SPI_CR1_CPHA SPI_CTL0_CKPH
+# define SPI_CR1_CPOL SPI_CTL0_CKPL
+# define SPI_CR1_BR_0 SPI_CTL0_PSC_0
+# define SPI_CR1_BR_1 SPI_CTL0_PSC_1
+# define SPI_CR1_BR_2 SPI_CTL0_PSC_2
+#endif
diff --git a/tmk_core/common/chibios/syscall-fallbacks.c b/tmk_core/common/chibios/syscall-fallbacks.c
index 739017ae1d..4569879c7c 100644
--- a/tmk_core/common/chibios/syscall-fallbacks.c
+++ b/tmk_core/common/chibios/syscall-fallbacks.c
@@ -18,6 +18,12 @@
#include <sys/stat.h>
#include <sys/types.h>
+/* To compile the ChibiOS syscall stubs with picolibc
+ * the _reent struct has to be defined. */
+#if defined(USE_PICOLIBC)
+struct _reent;
+#endif
+
#pragma GCC diagnostic ignored "-Wmissing-prototypes"
__attribute__((weak, used)) int _open_r(struct _reent *r, const char *path, int flag, int m) {
diff --git a/util/install/arch.sh b/util/install/arch.sh
index bef98ac37f..33c39212d3 100755
--- a/util/install/arch.sh
+++ b/util/install/arch.sh
@@ -6,7 +6,8 @@ _qmk_install() {
sudo pacman --needed --noconfirm -S \
base-devel clang diffutils gcc git unzip wget zip python-pip \
avr-binutils arm-none-eabi-binutils arm-none-eabi-gcc \
- arm-none-eabi-newlib avrdude dfu-programmer dfu-util
+ arm-none-eabi-newlib avrdude dfu-programmer dfu-util \
+ riscv64-elf-binutils riscv64-elf-gcc riscv64-elf-newlib
sudo pacman --needed --noconfirm -U https://archive.archlinux.org/packages/a/avr-gcc/avr-gcc-8.3.0-1-x86_64.pkg.tar.xz
sudo pacman --needed --noconfirm -S avr-libc # Must be installed after the above, or it will bring in the latest avr-gcc instead
diff --git a/util/install/debian.sh b/util/install/debian.sh
index 57588e371a..2a188334b6 100755
--- a/util/install/debian.sh
+++ b/util/install/debian.sh
@@ -15,7 +15,8 @@ _qmk_install() {
build-essential clang-format diffutils gcc git unzip wget zip \
python3-pip binutils-avr gcc-avr avr-libc binutils-arm-none-eabi \
gcc-arm-none-eabi libnewlib-arm-none-eabi avrdude dfu-programmer \
- dfu-util teensy-loader-cli libhidapi-hidraw0 libusb-dev
+ dfu-util teensy-loader-cli libhidapi-hidraw0 libusb-dev \
+ picolibc-riscv64-unknown-elf gcc-riscv64-unknown-elf binutils-riscv64-unknown-elf
python3 -m pip install --user -r $QMK_FIRMWARE_DIR/requirements.txt
}