167 lines
6.5 KiB
C
167 lines
6.5 KiB
C
/************************************************************************************
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* configs/sabre-6quad/include/board.h
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*
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* Copyright (C) 2016 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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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_SABRE_6QUAD_INCLUDE_BOARD_H
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#define __CONFIGS_SABRE_6QUAD_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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/* The Sabre-6Quad board has two crystals:
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*
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* Y1 24 MHz CPU_XTALI/CPU_XTALO
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* QZ500 32.768 KHz RTC_XTALI/RTC_XTALO
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*/
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#define BOARD_CPUXTAL_FREQUENCY 24000000
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#define BAORD_RTCXTAL_FREQUENCY 32768
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/* Clocking will be configured at 792 MHz initially when started via U-Boot. The
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* Linux kernel will use the CPU frequency scaling code which will switch the
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* processor frequency between 400 MHz and 1GHz based on load and temperature.
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*
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* These are the frequencies reported with U-Boot starts up:
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*
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* mx6q pll1 : 792MHz
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* mx6q pll2 : 528MHz
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* mx6q pll3 : 480MHz
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* mx6q pll8 : 50MHz
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*
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* ipg clock : 66000000Hz
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* ipg per clock : 66000000Hz
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* uart clock : 80000000Hz
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* cspi clock : 60000000Hz
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* ahb clock : 132000000Hz
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* axi clock : 264000000Hz
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* emi_slow clock : 29333333Hz
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* ddr clock : 528000000Hz
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* usdhc1 clock : 198000000Hz
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* usdhc2 clock : 198000000Hz
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* usdhc3 clock : 198000000Hz
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* usdhc4 clock : 198000000Hz
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* nfc clock : 24000000Hz
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*
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* For now, NuttX simply leaves the clocking at 792MHz.
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*/
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/* LED definitions ******************************************************************/
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/* LEDs
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*
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* A single LED is available driven GPIO1_IO02. On the schematic this is
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* USR_DEF_RED_LED signal to pin T1 (GPIO_2). This signal is shared with KEY_ROW6
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* (ALT2). A high value illuminates the LED.
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*/
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/* LED index values for use with board_userled() */
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#define BOARD_LED 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_LED_BIT (1 << BOARD_LED)
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/* These LEDs are 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/sam_autoleds.c. The LEDs are 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 /* MCU is is sleep mode Not used */
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/* Thus is LED is statically on, NuttX has successfully booted and is,
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* apparently, running normally. If 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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/* GPIO Disambiguation **************************************************************/
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/* A DEBUG VCOM is available MICRO USB AB 5 J509. This corresponds to UART1 from
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* the i.MX6. UART1 connects to J509 via the CSIO_DAT10 and CSIO_DAT11 pins:
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*/
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#define GPIO_UART1_RX_DATA GPIO_UART1_RX_DATA_2
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#define GPIO_UART1_TX_DATA GPIO_UART1_TX_DATA_2
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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_SABRE_6QUAD_INCLUDE_BOARD_H */
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