Tentative Teensy 3.5 support (#14420)

* Tentative Teensy 3.5 support

* Set firmware format to .hex for ARM Teensys

* Got to "device descriptor failed" by comparing with Teensy 3.6 code

* Drop down to 96MHz...

* Bump back up to 120MHz

11 files changed, 180 insertions, 5 deletions

diff --git a/builddefs/bootloader.mk b/builddefs/bootloader.mk
index 3d4c03b01c..51e9b7d558 100644
--- a/builddefs/bootloader.mk
+++ b/builddefs/bootloader.mk
@@ -105,8 +105,8 @@ ifeq ($(strip $(BOOTLOADER)), halfkay)
     ifeq ($(strip $(MCU)), at90usb1286)
         BOOTLOADER_SIZE = 1024
     endif
-    # Teensy LC, 3.x
-    ifneq (,$(filter $(MCU_ORIG), MKL26Z64 MK20DX128 MK20DX256 MK66FX1M0))
+    # Teensy LC, 3.0, 3.1/2, 3.5, 3.6
+    ifneq (,$(filter $(MCU_ORIG), MKL26Z64 MK20DX128 MK20DX256 MK64FX512 MK66FX1M0))
         FIRMWARE_FORMAT = hex
     endif
 endif
diff --git a/builddefs/mcu_selection.mk b/builddefs/mcu_selection.mk
index 135f663c14..7528aa6842 100644
--- a/builddefs/mcu_selection.mk
+++ b/builddefs/mcu_selection.mk
@@ -87,6 +87,33 @@ ifneq ($(findstring MK20DX256, $(MCU)),)
   BOARD ?= PJRC_TEENSY_3_1
 endif
 
+ifneq ($(findstring MK64FX512, $(MCU)),)
+  # Cortex version
+  MCU = cortex-m4
+
+  # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
+  ARMV = 7
+
+  ## chip/board settings
+  # - the next two should match the directories in
+  #   <chibios>/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)
+  MCU_FAMILY = KINETIS
+  MCU_SERIES = K60x
+
+  # Linker script to use
+  # - it should exist either in <chibios>/os/common/ports/ARMCMx/compilers/GCC/ld/
+  #   or <keyboard_dir>/ld/
+  MCU_LDSCRIPT ?= MK64FX512
+
+  # Startup code to use
+  #  - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/
+  MCU_STARTUP ?= k60x
+
+  # Board: it should exist either in <chibios>/os/hal/boards/,
+  # <keyboard_dir>/boards/, or drivers/boards/
+  BOARD ?= PJRC_TEENSY_3_5
+endif
+
 ifneq ($(findstring MK66FX1M0, $(MCU)),)
   # Cortex version
   MCU = cortex-m4
diff --git a/data/schemas/keyboard.jsonschema b/data/schemas/keyboard.jsonschema
index 8aca807e38..320974f0c4 100644
--- a/data/schemas/keyboard.jsonschema
+++ b/data/schemas/keyboard.jsonschema
@@ -42,7 +42,7 @@
         },
         "processor": {
             "type": "string",
-            "enum": ["cortex-m0", "cortex-m0plus", "cortex-m3", "cortex-m4", "MKL26Z64", "MK20DX128", "MK20DX256", "MK66FX1M0", "RP2040", "STM32F042", "STM32F072", "STM32F103", "STM32F303", "STM32F401", "STM32F405", "STM32F407", "STM32F411", "STM32F446", "STM32G431", "STM32G474", "STM32L412", "STM32L422", "STM32L432", "STM32L433", "STM32L442", "STM32L443", "GD32VF103", "WB32F3G71", "WB32FQ95", "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", "MK64FX512", "MK66FX1M0", "RP2040", "STM32F042", "STM32F072", "STM32F103", "STM32F303", "STM32F401", "STM32F405", "STM32F407", "STM32F411", "STM32F446", "STM32G431", "STM32G474", "STM32L412", "STM32L422", "STM32L432", "STM32L433", "STM32L442", "STM32L443", "GD32VF103", "WB32F3G71", "WB32FQ95", "atmega16u2", "atmega32u2", "atmega16u4", "atmega32u4", "at90usb162", "at90usb646", "at90usb647", "at90usb1286", "at90usb1287", "atmega32a", "atmega328p", "atmega328", "attiny85", "unknown"]
         },
         "audio": {
             "type": "object",
diff --git a/docs/compatible_microcontrollers.md b/docs/compatible_microcontrollers.md
index a594fe0620..cc9c0b7f92 100644
--- a/docs/compatible_microcontrollers.md
+++ b/docs/compatible_microcontrollers.md
@@ -62,6 +62,8 @@ You can also use any ARM chip with USB that [ChibiOS](https://www.chibios.org) s
  * [MK20DX128](https://www.nxp.com/products/processors-and-microcontrollers/arm-microcontrollers/general-purpose-mcus/k-series-cortex-m4/k2x-usb/kinetis-k20-50-mhz-full-speed-usb-mixed-signal-integration-microcontrollers-based-on-arm-cortex-m4-core:K20_50)
  * [MK20DX256](https://www.nxp.com/products/processors-and-microcontrollers/arm-microcontrollers/general-purpose-mcus/k-series-cortex-m4/k2x-usb/kinetis-k20-72-mhz-full-speed-usb-mixed-signal-integration-microcontrollers-mcus-based-on-arm-cortex-m4-core:K20_72)
    * PJRC Teensy 3.2
+ * [MK64FX512](https://www.nxp.com/products/processors-and-microcontrollers/arm-microcontrollers/general-purpose-mcus/k-series-cortex-m4/k6x-ethernet/kinetis-k64-120-mhz-256-kb-sram-microcontrollers-mcus-based-on-arm-cortex-m4-core:K64_120)
+   * PJRC Teensy 3.5
  * [MK66FX1M0](https://www.nxp.com/products/processors-and-microcontrollers/arm-microcontrollers/general-purpose-mcus/k-series-cortex-m4/k6x-ethernet/kinetis-k66-180-mhz-dual-high-speed-full-speed-usbs-2mb-flash-microcontrollers-mcus-based-on-arm-cortex-m4-core:K66_180)
    * PJRC Teensy 3.6
 
diff --git a/keyboards/handwired/onekey/teensy_35/chconf.h b/keyboards/handwired/onekey/teensy_35/chconf.h
new file mode 100644
index 0000000000..ee8312c526
--- /dev/null
+++ b/keyboards/handwired/onekey/teensy_35/chconf.h
@@ -0,0 +1,28 @@
+/* Copyright 2020 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/>.
+ */
+
+/*
+ * This file was auto-generated by:
+ *    `qmk chibios-confmigrate -i keyboards/handwired/onekey/teensy_35/chconf.h -r platforms/chibios/common/configs/chconf.h`
+ */
+
+#pragma once
+
+#define CH_CFG_ST_TIMEDELTA 0
+
+#define CH_CFG_TIME_QUANTUM 20
+
+#include_next <chconf.h>
diff --git a/keyboards/handwired/onekey/teensy_35/config.h b/keyboards/handwired/onekey/teensy_35/config.h
new file mode 100644
index 0000000000..a5f2c945c4
--- /dev/null
+++ b/keyboards/handwired/onekey/teensy_35/config.h
@@ -0,0 +1,32 @@
+/* Copyright 2019
+ *
+ * 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
+
+// TODO: including this causes "error: expected identifier before '(' token" errors
+//#include "config_common.h"
+
+#define PRODUCT Onekey Teensy 3.5
+
+#define MATRIX_COL_PINS { D5 } // 20/A6
+#define MATRIX_ROW_PINS { B2 } // 19/A5
+#define UNUSED_PINS
+
+// i2c_master defines
+#define I2C1_SCL_PIN B0 // 16/A2 on pinout
+#define I2C1_SDA_PIN B1 // 17/A3 on pinout
+#define I2C1_SCL_PAL_MODE PAL_MODE_ALTERNATIVE_2
+#define I2C1_SDA_PAL_MODE PAL_MODE_ALTERNATIVE_2
diff --git a/keyboards/handwired/onekey/teensy_35/halconf.h b/keyboards/handwired/onekey/teensy_35/halconf.h
new file mode 100644
index 0000000000..6ac756d0f2
--- /dev/null
+++ b/keyboards/handwired/onekey/teensy_35/halconf.h
@@ -0,0 +1,28 @@
+/* Copyright 2020 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/>.
+ */
+
+/*
+ * This file was auto-generated by:
+ *    `qmk chibios-confmigrate -i keyboards/handwired/onekey/teensy_35/halconf.h -r platforms/chibios/common/configs/halconf.h`
+ */
+
+#pragma once
+
+#define HAL_USE_SERIAL TRUE
+
+#define SERIAL_USB_BUFFERS_SIZE 256
+
+#include_next <halconf.h>
diff --git a/keyboards/handwired/onekey/teensy_35/mcuconf.h b/keyboards/handwired/onekey/teensy_35/mcuconf.h
new file mode 100644
index 0000000000..dc508eee7d
--- /dev/null
+++ b/keyboards/handwired/onekey/teensy_35/mcuconf.h
@@ -0,0 +1,50 @@
+/*
+    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 _MCUCONF_H_
+#define _MCUCONF_H_
+
+#define K60x_MCUCONF
+
+/*
+ * HAL driver system settings.
+ */
+
+/* Select the MCU clocking mode below by enabling the appropriate block. */
+
+/* PEE mode - 120MHz system clock driven by external crystal. */
+#define KINETIS_MCG_MODE            KINETIS_MCG_MODE_PEE
+#define KINETIS_PLLCLK_FREQUENCY    120000000UL  // 120 MHz (RUN)
+#define KINETIS_SYSCLK_FREQUENCY    KINETIS_PLLCLK_FREQUENCY
+#define KINETIS_BUSCLK_FREQUENCY    60000000UL
+#define KINETIS_FLASHCLK_FREQUENCY  24000000UL  // 24 MHz (RUN)
+
+#define KINETIS_CLKDIV1_OUTDIV1 1  // -> 0
+#define KINETIS_CLKDIV1_OUTDIV2 2  // -> 1
+#define KINETIS_CLKDIV1_OUTDIV4 5  // -> 4
+
+/*
+ * SERIAL driver system settings.
+ */
+#define KINETIS_SERIAL_USE_UART0              TRUE
+
+/*
+ * USB driver settings
+ */
+#define KINETIS_USB_USE_USB0                  TRUE
+#define KINETIS_USB_USB0_IRQ_PRIORITY         5
+
+#endif /* _MCUCONF_H_ */
diff --git a/keyboards/handwired/onekey/teensy_35/rules.mk b/keyboards/handwired/onekey/teensy_35/rules.mk
new file mode 100644
index 0000000000..8ebefd03f5
--- /dev/null
+++ b/keyboards/handwired/onekey/teensy_35/rules.mk
@@ -0,0 +1,8 @@
+# MCU name
+MCU = MK64FX512
+
+# Bootloader selection
+BOOTLOADER = halfkay
+
+# Enter lower-power sleep mode when on the ChibiOS idle thread
+OPT_DEFS += -DCORTEX_ENABLE_WFI_IDLE=TRUE
diff --git a/lib/python/qmk/constants.py b/lib/python/qmk/constants.py
index be85a1dbff..95fe9a61d0 100644
--- a/lib/python/qmk/constants.py
+++ b/lib/python/qmk/constants.py
@@ -14,7 +14,7 @@ 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', 'RP2040', 'STM32F042', 'STM32F072', 'STM32F103', 'STM32F303', 'STM32F401', 'STM32F405', 'STM32F407', 'STM32F411', 'STM32F446', 'STM32G431', 'STM32G474', 'STM32L412', 'STM32L422', 'STM32L432', 'STM32L433', 'STM32L442', 'STM32L443', 'GD32VF103', 'WB32F3G71', 'WB32FQ95'
+CHIBIOS_PROCESSORS = 'cortex-m0', 'cortex-m0plus', 'cortex-m3', 'cortex-m4', 'MKL26Z64', 'MK20DX128', 'MK20DX256', 'MK64FX512', 'MK66FX1M0', 'RP2040', 'STM32F042', 'STM32F072', 'STM32F103', 'STM32F303', 'STM32F401', 'STM32F405', 'STM32F407', 'STM32F411', 'STM32F446', 'STM32G431', 'STM32G474', 'STM32L412', 'STM32L422', 'STM32L432', 'STM32L433', 'STM32L442', 'STM32L443', 'GD32VF103', 'WB32F3G71', 'WB32FQ95'
 LUFA_PROCESSORS = 'at90usb162', 'atmega16u2', 'atmega32u2', 'atmega16u4', 'atmega32u4', 'at90usb646', 'at90usb647', 'at90usb1286', 'at90usb1287', None
 VUSB_PROCESSORS = 'atmega32a', 'atmega328p', 'atmega328', 'attiny85'
 
diff --git a/platforms/chibios/chibios_config.h b/platforms/chibios/chibios_config.h
index 1571bd5cd3..e5aa8e3d05 100644
--- a/platforms/chibios/chibios_config.h
+++ b/platforms/chibios/chibios_config.h
@@ -95,7 +95,7 @@
 #if defined(MCU_KINETIS)
 #    define CPU_CLOCK KINETIS_SYSCLK_FREQUENCY
 
-#    if defined(K20x) || defined(KL2x)
+#    if defined(K20x) || defined(K60x) || defined(KL2x)
 #        define USE_I2CV1
 #        define USE_I2CV1_CONTRIB // for some reason a bunch of ChibiOS-Contrib boards only have clock_speed
 #        define USE_GPIOV1