Permalink
Cannot retrieve contributors at this time
Name already in use
A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?
micropython/ports/mimxrt/board_init.c
Go to fileThis commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
140 lines (118 sloc)
4.41 KB
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/* | |
* This file is part of the MicroPython project, http://micropython.org/ | |
* | |
* Based on tinyusb/hw/bsp/teensy_40/teensy40.c | |
* | |
* The MIT License (MIT) | |
* | |
* Copyright (c) 2018, hathach (tinyusb.org) | |
* Copyright (c) 2020, Jim Mussared | |
* | |
* 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. | |
*/ | |
#include "py/runtime.h" | |
#include "tusb.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 | |
#include "modmachine.h" | |
#include "irq.h" | |
const uint8_t dcd_data[] = { 0x00 }; | |
void usb_phy0_init(uint8_t d_cal, uint8_t txcal45dp, uint8_t txcal45dn); | |
void board_init(void) { | |
// Clean and enable cache | |
SCB_CleanDCache(); | |
SCB_EnableDCache(); | |
SCB_EnableICache(); | |
// Init clock | |
BOARD_BootClockRUN(); | |
SystemCoreClockUpdate(); | |
// Enable IOCON clock | |
CLOCK_EnableClock(kCLOCK_Iomuxc); | |
// SDRAM | |
#if MICROPY_HW_SDRAM_AVAIL | |
mimxrt_sdram_init(); | |
#endif | |
// 1ms tick timer | |
SysTick_Config(SystemCoreClock / 1000); | |
NVIC_SetPriority(SysTick_IRQn, IRQ_PRI_SYSTICK); | |
// USB0 | |
usb_phy0_init(0b0111, 0b0110, 0b0110); // Configure nominal values for D_CAL and TXCAL45DP/DN | |
// ADC | |
machine_adc_init(); | |
// SDCard | |
#if MICROPY_PY_MACHINE_SDCARD | |
machine_sdcard_init0(); | |
#endif | |
#if MICROPY_PY_MACHINE_I2S | |
machine_i2s_init0(); | |
#endif | |
// RTC | |
machine_rtc_start(); | |
// OCRAM wait states (discarded, but code kept) | |
#if 0 | |
MECC1->PIPE_ECC_EN = | |
MECC_PIPE_ECC_EN_READ_DATA_WAIT_EN(1) | | |
MECC_PIPE_ECC_EN_READ_ADDR_PIPE_EN(1) | | |
MECC_PIPE_ECC_EN_WRITE_DATA_PIPE_EN(1) | | |
MECC_PIPE_ECC_EN_WRITE_ADDR_PIPE_EN(1); | |
MECC2->PIPE_ECC_EN = | |
MECC_PIPE_ECC_EN_READ_DATA_WAIT_EN(1) | | |
MECC_PIPE_ECC_EN_READ_ADDR_PIPE_EN(1) | | |
MECC_PIPE_ECC_EN_WRITE_DATA_PIPE_EN(1) | | |
MECC_PIPE_ECC_EN_WRITE_ADDR_PIPE_EN(1); | |
FLEXRAM->FLEXRAM_CTRL = | |
FLEXRAM_FLEXRAM_CTRL_OCRAM_RDATA_WAIT_EN(1) | | |
FLEXRAM_FLEXRAM_CTRL_OCRAM_RADDR_PIPELINE_EN(1) | | |
FLEXRAM_FLEXRAM_CTRL_OCRAM_WRDATA_PIPELINE_EN(1) | | |
FLEXRAM_FLEXRAM_CTRL_OCRAM_WRADDR_PIPELINE_EN(1); | |
#endif | |
} | |
void usb_phy0_init(uint8_t d_cal, uint8_t txcal45dp, uint8_t txcal45dn) { | |
#ifdef USBPHY1 | |
USBPHY_Type *usb_phy = USBPHY1; | |
#else | |
USBPHY_Type *usb_phy = USBPHY; | |
#endif | |
CLOCK_EnableUsbhs0PhyPllClock(kCLOCK_Usbphy480M, BOARD_XTAL0_CLK_HZ); | |
CLOCK_EnableUsbhs0Clock(kCLOCK_Usb480M, BOARD_XTAL0_CLK_HZ); | |
#if defined(MIMXRT117x_SERIES) | |
usb_phy->TRIM_OVERRIDE_EN = USBPHY_TRIM_OVERRIDE_EN_TRIM_DIV_SEL_OVERRIDE(1) | | |
USBPHY_TRIM_OVERRIDE_EN_TRIM_ENV_TAIL_ADJ_VD_OVERRIDE(1) | | |
USBPHY_TRIM_OVERRIDE_EN_TRIM_TX_D_CAL_OVERRIDE(1) | | |
USBPHY_TRIM_OVERRIDE_EN_TRIM_TX_CAL45DP_OVERRIDE(1) | | |
USBPHY_TRIM_OVERRIDE_EN_TRIM_TX_CAL45DN_OVERRIDE(1); // Enable override for D_CAL and TXCAL45DP/DN | |
#endif | |
usb_phy->PWD = 0U; // Set all bits in PWD register to normal operation | |
usb_phy->TX = ((usb_phy->TX & (~(USBPHY_TX_D_CAL_MASK | USBPHY_TX_TXCAL45DM_MASK | USBPHY_TX_TXCAL45DP_MASK))) | | |
(USBPHY_TX_D_CAL(d_cal) | USBPHY_TX_TXCAL45DP(txcal45dp) | USBPHY_TX_TXCAL45DM(txcal45dn))); // Configure values for D_CAL and TXCAL45DP/DN | |
} | |
void USB_OTG1_IRQHandler(void) { | |
tud_int_handler(0); | |
tud_task(); | |
__SEV(); | |
} | |
void USB_OTG2_IRQHandler(void) { | |
tud_int_handler(1); | |
tud_task(); | |
__SEV(); | |
} |