92e4a7223c
Master imxrt
* imxrt:Fix typos bit# and names
* imxrt:wdog Registers are 16 Bits
* imxrt:wdog Update has to be within 255 clocks of unlock
* imxrt:clockconfig Fix comments
* imxrt1050-evk:board.h Fix comments
* imxrt:imxrt_ccm.h Define Mux Selects for board.h use
* imxrt:clockconfig Allow better control from board.h
1) Allows a board config clock setting to be defined
in terms of the /n values shown in Figure 18-2.
Clock Tree of the i.MX RT1050 Processor Reference
Manual, Rev. 1, 03/2018
2) Allows the clock multipelx selection to be made in
The board config.
* imxrt1050-evk:Define board clocking based on divisor and muxes
Approved-by: GregoryN <gnutt@nuttx.org>
227 lines
8.6 KiB
C
227 lines
8.6 KiB
C
/************************************************************************************
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* configs/imxrt1050/include/board.h
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*
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* Copyright (C) 2018 Gregory Nutt. All rights reserved.
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* Authors: Gregory Nutt <gnutt@nuttx.org>
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* David Sidrane <david_s5@nscdg.com>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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************************************************************************************/
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#ifndef __CONFIGS_IMXRT1050_EVK_INCLUDE_BOARD_H
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#define __CONFIGS_IMXRT1050_EVK_INCLUDE_BOARD_H
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/************************************************************************************
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* Included Files
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************************************************************************************/
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#include <nuttx/config.h>
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/************************************************************************************
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* Pre-processor Definitions
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************************************************************************************/
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/* Clocking *************************************************************************/
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/* Set VDD_SOC to 1.25V */
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#define IMXRT_VDD_SOC (0x12)
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/* Set Arm PLL (PLL1) to fOut = (24Mhz * ARM_PLL_DIV_SELECT/2) / ARM_PODF_DIVISOR
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* 600Mhz = (24Mhz * ARM_PLL_DIV_SELECT/2) / ARM_PODF_DIVISOR
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* ARM_PLL_DIV_SELECT = 100
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* ARM_PODF_DIVISOR = 2
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* 600Mhz = (24Mhz * 100/2) / 2
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*
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* AHB_CLOCK_ROOT = PLL1fOut / IMXRT_AHB_PODF_DIVIDER
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* 1Hz to 600 Mhz = 600Mhz / IMXRT_ARM_CLOCK_DIVIDER
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* IMXRT_ARM_CLOCK_DIVIDER = 1
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* 600Mhz = 600Mhz / 1
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*
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* PRE_PERIPH_CLK_SEL = PRE_PERIPH_CLK_SEL_PLL1
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* PERIPH_CLK_SEL = 1 (0 select PERIPH_CLK2_PODF, 1 select PRE_PERIPH_CLK_SEL_PLL1)
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* PERIPH_CLK = 600Mhz
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*
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* IPG_CLOCK_ROOT = AHB_CLOCK_ROOT / IMXRT_IPG_PODF_DIVIDER
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* IMXRT_IPG_PODF_DIVIDER = 4
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* 150Mhz = 600Mhz / 4
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*
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* PRECLK_CLOCK_ROOT = IPG_CLOCK_ROOT / IMXRT_PERCLK_PODF_DIVIDER
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* IMXRT_PERCLK_PODF_DIVIDER = 1
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* 150Mhz = 150Mhz / 1
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*
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* SEMC_CLK_ROOT = 600Mhz / IMXRT_SEMC_PODF_DIVIDER (labeled AIX_PODF in 18.2)
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* IMXRT_SEMC_PODF_DIVIDER = 8
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* 75Mhz = 600Mhz / 8
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*
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* Set Sys PLL (PLL2) to fOut = (24Mhz * (20+(2*(DIV_SELECT)))
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* 528Mhz = (24Mhz * (20+(2*(1)))
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*
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* Set USB1 PLL (PLL3) to fOut = (24Mhz * 20)
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* 480Mhz = (24Mhz * 20)
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*/
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#define BOARD_XTAL_FREQUENCY 24000000
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#define IMXRT_PRE_PERIPH_CLK_SEL CCM_CBCMR_PRE_PERIPH_CLK_SEL_PLL1
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#define IMXRT_PERIPH_CLK_SEL CCM_CBCDR_PERIPH_CLK_SEL_PRE_PERIPH
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#define IMXRT_ARM_PLL_DIV_SELECT 100
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#define IMXRT_ARM_PODF_DIVIDER 2
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#define IMXRT_AHB_PODF_DIVIDER 1
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#define IMXRT_IPG_PODF_DIVIDER 4
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#define IMXRT_PERCLK_CLK_SEL CCM_CSCMR1_PERCLK_CLK_SEL_IPG_CLK_ROOT
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#define IMXRT_PERCLK_PODF_DIVIDER 9
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#define IMXRT_SEMC_PODF_DIVIDER 8
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#define IMXRT_SYS_PLL_SELECT CCM_ANALOG_PLL_SYS_DIV_SELECT_22
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#define BOARD_CPU_FREQUENCY \
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(BOARD_XTAL_FREQUENCY * (IMXRT_ARM_PLL_DIV_SELECT / 2)) / IMXRT_ARM_PODF_DIVIDER
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/* LED definitions ******************************************************************/
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/* There are four LED status indicators located on the EVK Board. The functions of
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* these LEDs include:
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*
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* - Main Power Supply(D3)
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* Green: DC 5V main supply is normal.
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* Red: J2 input voltage is over 5.6V.
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* Off: The board is not powered.
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* - Reset RED LED(D15)
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* - OpenSDA LED(D16)
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* - USER LED(D18)
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*
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* Only a single LED, D18, is under software control.
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*/
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/* LED index values for use with board_userled() */
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#define BOARD_USERLED 0
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#define BOARD_NLEDS 1
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/* LED bits for use with board_userled_all() */
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#define BOARD_USERLED_BIT (1 << BOARD_USERLED)
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/* This LED is not used by the board port unless CONFIG_ARCH_LEDS is
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* defined. In that case, the usage by the board port is defined in
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* include/board.h and src/imxrt_autoleds.c. The LED is used to encode
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* OS-related events as follows:
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*
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* -------------------- ----------------------------- ------
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* SYMBOL Meaning LED
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* -------------------- ----------------------------- ------ */
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#define LED_STARTED 0 /* NuttX has been started OFF */
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#define LED_HEAPALLOCATE 0 /* Heap has been allocated OFF */
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#define LED_IRQSENABLED 0 /* Interrupts enabled OFF */
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#define LED_STACKCREATED 1 /* Idle stack created ON */
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#define LED_INIRQ 2 /* In an interrupt N/C */
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#define LED_SIGNAL 2 /* In a signal handler N/C */
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#define LED_ASSERTION 2 /* An assertion failed N/C */
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#define LED_PANIC 3 /* The system has crashed FLASH */
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#undef LED_IDLE /* Not used */
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/* Thus if the LED is statically on, NuttX has successfully booted and is,
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* apparently, running normally. If the LED is flashing at approximately
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* 2Hz, then a fatal error has been detected and the system has halted.
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*/
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/* Button definitions ***************************************************************/
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/* The IMXRT board has one external user button
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*
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* 1. SW8 (IRQ88) GPIO5-00
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*/
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#define BUTTON_SW8 0
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#define BUTTON_SW8_BIT (1 << BUTTON_SW8)
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/* PIO Disambiguation ***************************************************************/
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/* LPUARTs
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*
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* Virtual console port provided by OpenSDA:
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*
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* UART1_TXD GPIO_AD_B0_12 LPUART1_TX
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* UART1_RXD GPIO_AD_B0_13 LPUART1_RX
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*
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* NOTE: There are no alternative pin configurations for LPUART1.
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*
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* Arduino RS-232 Shield:
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*
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* J22 D0 UART_RX/D0 GPIO_AD_B1_07 LPUART3_RX
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* J22 D1 UART_TX/D1 GPIO_AD_B1_06 LPUART3_TX
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*/
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#define GPIO_LPUART3_RX GPIO_LPUART3_RX_1 /* GPIO_AD_B1_07 */
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#define GPIO_LPUART3_TX GPIO_LPUART3_TX_1 /* GPIO_AD_B1_06 */
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/* LPI2Cs
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*
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* Arduino Connector
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*
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* J23 A4 A4/ADC4/SDA GPIO_AD_B1_01 LPI2C1_SDA
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* J23 A5 A5/ADC5/SCL GPIO_AD_B1_00 LPI2C1_SCL
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*/
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#define GPIO_LPI2C1_SDA GPIO_LPI2C1_SDA_2 /* GPIO_AD_B1_01 */
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#define GPIO_LPI2C1_SCL GPIO_LPI2C1_SCL_2 /* GPIO_AD_B1_00 */
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#define GPIO_LPI2C3_SDA GPIO_LPI2C3_SDA_2 /* GPIO_AD_B1_01 */
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#define GPIO_LPI2C3_SCL GPIO_LPI2C3_SCL_2 /* GPIO_AD_B1_00 */
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/************************************************************************************
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* Public Types
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************************************************************************************/
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/************************************************************************************
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* Public Data
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************************************************************************************/
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#ifndef __ASSEMBLY__
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/************************************************************************************
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* Public Functions
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************************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __CONFIGS_IMXRT1050_EVK_INCLUDE_BOARD_H */
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