1 files changed, 190 insertions, 0 deletions
diff --git a/tinyusb/hw/bsp/imxrt/family.c b/tinyusb/hw/bsp/imxrt/family.c
new file mode 100755
index 00000000..77a224a5
--- /dev/null
+++ b/tinyusb/hw/bsp/imxrt/family.c
@@ -0,0 +1,190 @@
+/* 
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018, hathach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+
+#include "bsp/board.h"
+#include "board.h"
+#include "fsl_device_registers.h"
+#include "fsl_gpio.h"
+#include "fsl_iomuxc.h"
+#include "fsl_clock.h"
+#include "fsl_lpuart.h"
+
+#include "clock_config.h"
+
+// needed by fsl_flexspi_nor_boot
+const uint8_t dcd_data[] = { 0x00 };
+
+void board_init(void)
+{
+  // Init clock
+  BOARD_BootClockRUN();
+  SystemCoreClockUpdate();
+
+  // Enable IOCON clock
+  CLOCK_EnableClock(kCLOCK_Iomuxc);
+
+#if CFG_TUSB_OS == OPT_OS_NONE
+  // 1ms tick timer
+  SysTick_Config(SystemCoreClock / 1000);
+#elif CFG_TUSB_OS == OPT_OS_FREERTOS
+  // If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
+//  NVIC_SetPriority(USB0_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
+#endif
+
+  // LED
+  IOMUXC_SetPinMux( LED_PINMUX, 0U);
+  IOMUXC_SetPinConfig( LED_PINMUX, 0x10B0U);
+
+  gpio_pin_config_t led_config = { kGPIO_DigitalOutput, 0, kGPIO_NoIntmode };
+  GPIO_PinInit(LED_PORT, LED_PIN, &led_config);
+  board_led_write(true);
+
+  // Button
+  IOMUXC_SetPinMux( BUTTON_PINMUX, 0U);
+  IOMUXC_SetPinConfig(BUTTON_PINMUX, 0x01B0A0U);
+  gpio_pin_config_t button_config = { kGPIO_DigitalInput, 0, kGPIO_IntRisingEdge, };
+  GPIO_PinInit(BUTTON_PORT, BUTTON_PIN, &button_config);
+
+  // UART
+  IOMUXC_SetPinMux( UART_TX_PINMUX, 0U);
+  IOMUXC_SetPinMux( UART_RX_PINMUX, 0U);
+  IOMUXC_SetPinConfig( UART_TX_PINMUX, 0x10B0u);
+  IOMUXC_SetPinConfig( UART_RX_PINMUX, 0x10B0u);
+
+  lpuart_config_t uart_config;
+  LPUART_GetDefaultConfig(&uart_config);
+  uart_config.baudRate_Bps = CFG_BOARD_UART_BAUDRATE;
+  uart_config.enableTx = true;
+  uart_config.enableRx = true;
+
+  uint32_t freq;
+  if (CLOCK_GetMux(kCLOCK_UartMux) == 0) /* PLL3 div6 80M */
+  {
+    freq = (CLOCK_GetPllFreq(kCLOCK_PllUsb1) / 6U) / (CLOCK_GetDiv(kCLOCK_UartDiv) + 1U);
+  }
+  else
+  {
+    freq = CLOCK_GetOscFreq() / (CLOCK_GetDiv(kCLOCK_UartDiv) + 1U);
+  }
+
+  LPUART_Init(UART_PORT, &uart_config, freq);
+
+  //------------- USB0 -------------//
+
+  // Clock
+  CLOCK_EnableUsbhs0PhyPllClock(kCLOCK_Usbphy480M, 480000000U);
+  CLOCK_EnableUsbhs0Clock(kCLOCK_Usb480M, 480000000U);
+
+  // USB1
+//  CLOCK_EnableUsbhs1PhyPllClock(kCLOCK_Usbphy480M, 480000000U);
+//  CLOCK_EnableUsbhs1Clock(kCLOCK_Usb480M, 480000000U);
+
+  USBPHY_Type* usb_phy;
+
+  // RT105x RT106x have dual USB controller. TODO support USB2
+#ifdef USBPHY1
+  usb_phy = USBPHY1;
+#else
+  usb_phy = USBPHY;
+#endif
+
+  // Enable PHY support for Low speed device + LS via FS Hub
+  usb_phy->CTRL |= USBPHY_CTRL_SET_ENUTMILEVEL2_MASK | USBPHY_CTRL_SET_ENUTMILEVEL3_MASK;
+
+  // Enable all power for normal operation
+  usb_phy->PWD = 0;
+
+  // TX Timing
+  uint32_t phytx = usb_phy->TX;
+  phytx &= ~(USBPHY_TX_D_CAL_MASK | USBPHY_TX_TXCAL45DM_MASK | USBPHY_TX_TXCAL45DP_MASK);
+  phytx |= USBPHY_TX_D_CAL(0x0C) | USBPHY_TX_TXCAL45DP(0x06) | USBPHY_TX_TXCAL45DM(0x06);
+  usb_phy->TX = phytx;
+}
+
+//--------------------------------------------------------------------+
+// USB Interrupt Handler
+//--------------------------------------------------------------------+
+void USB_OTG1_IRQHandler(void)
+{
+  #if CFG_TUSB_RHPORT0_MODE & OPT_MODE_HOST
+    tuh_int_handler(0);
+  #endif
+
+  #if CFG_TUSB_RHPORT0_MODE & OPT_MODE_DEVICE
+    tud_int_handler(0);
+  #endif
+}
+
+void USB_OTG2_IRQHandler(void)
+{
+  #if CFG_TUSB_RHPORT1_MODE & OPT_MODE_HOST
+    tuh_int_handler(1);
+  #endif
+
+  #if CFG_TUSB_RHPORT1_MODE & OPT_MODE_DEVICE
+    tud_int_handler(1);
+  #endif
+}
+
+//--------------------------------------------------------------------+
+// Board porting API
+//--------------------------------------------------------------------+
+
+void board_led_write(bool state)
+{
+  GPIO_PinWrite(LED_PORT, LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON));
+}
+
+uint32_t board_button_read(void)
+{
+  // active low
+  return BUTTON_STATE_ACTIVE == GPIO_PinRead(BUTTON_PORT, BUTTON_PIN);
+}
+
+int board_uart_read(uint8_t* buf, int len)
+{
+  LPUART_ReadBlocking(UART_PORT, buf, len);
+  return len;
+}
+
+int board_uart_write(void const * buf, int len)
+{
+  LPUART_WriteBlocking(UART_PORT, (uint8_t*)buf, len);
+  return len;
+}
+
+#if CFG_TUSB_OS == OPT_OS_NONE
+volatile uint32_t system_ticks = 0;
+void SysTick_Handler(void)
+{
+  system_ticks++;
+}
+
+uint32_t board_millis(void)
+{
+  return system_ticks;
+}
+#endif