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

5 files changed, 146 insertions, 0 deletions

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