/************************************************************************************ * boards/arm/imx6/sabre-6quad/include/board.h * * Copyright (C) 2016 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * 3. Neither the name NuttX nor the names of its contributors may be * used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * ************************************************************************************/ #ifndef __BOARDS_ARM_IMX6_SABRE_6QUAD_INCLUDE_BOARD_H #define __BOARDS_ARM_IMX6_SABRE_6QUAD_INCLUDE_BOARD_H /************************************************************************************ * Included Files ************************************************************************************/ #include /************************************************************************************ * Pre-processor Definitions ************************************************************************************/ /* Clocking *************************************************************************/ /* The Sabre-6Quad board has two crystals: * * Y1 24 MHz CPU_XTALI/CPU_XTALO * QZ500 32.768 KHz RTC_XTALI/RTC_XTALO */ #define BOARD_CPUXTAL_FREQUENCY 24000000 #define BAORD_RTCXTAL_FREQUENCY 32768 /* Clocking will be configured at 792 MHz initially when started via U-Boot. The * Linux kernel will use the CPU frequency scaling code which will switch the * processor frequency between 400 MHz and 1GHz based on load and temperature. * * These are the frequencies reported with U-Boot starts up: * * mx6q pll1 : 792MHz * mx6q pll2 : 528MHz * mx6q pll3 : 480MHz * mx6q pll8 : 50MHz * * ipg clock : 66000000Hz * ipg per clock : 66000000Hz * uart clock : 80000000Hz * cspi clock : 60000000Hz * ahb clock : 132000000Hz * axi clock : 264000000Hz * emi_slow clock : 29333333Hz * ddr clock : 528000000Hz * usdhc1 clock : 198000000Hz * usdhc2 clock : 198000000Hz * usdhc3 clock : 198000000Hz * usdhc4 clock : 198000000Hz * nfc clock : 24000000Hz * * For now, NuttX simply leaves the clocking at 792MHz. */ /* LED definitions ******************************************************************/ /* LEDs * * A single LED is available driven GPIO1_IO02. On the schematic this is * USR_DEF_RED_LED signal to pin T1 (GPIO_2). This signal is shared with KEY_ROW6 * (ALT2). A high value illuminates the LED. */ /* LED index values for use with board_userled() */ #define BOARD_LED 0 #define BOARD_NLEDS 1 /* LED bits for use with board_userled_all() */ #define BOARD_LED_BIT (1 << BOARD_LED) /* These LEDs are not used by the board port unless CONFIG_ARCH_LEDS is * defined. In that case, the usage by the board port is defined in * include/board.h and src/sam_autoleds.c. The LEDs are used to encode * OS-related events as follows: * * ---------------------- ---------------------------- ------ * SYMBOL Meaning LED * ---------------------- ---------------------------- ------ */ #define LED_STARTED 0 /* NuttX has been started OFF */ #define LED_HEAPALLOCATE 0 /* Heap has been allocated OFF */ #define LED_IRQSENABLED 0 /* Interrupts enabled OFF */ #define LED_STACKCREATED 1 /* Idle stack created ON */ #define LED_INIRQ 2 /* In an interrupt N/C */ #define LED_SIGNAL 2 /* In a signal handler N/C */ #define LED_ASSERTION 2 /* An assertion failed N/C */ #define LED_PANIC 3 /* The system has crashed FLASH */ #undef LED_IDLE /* MCU is is sleep mode Not used */ /* Thus is LED is statically on, NuttX has successfully booted and is, * apparently, running normally. If LED is flashing at approximately * 2Hz, then a fatal error has been detected and the system has halted. */ /* Button definitions ***************************************************************/ /* GPIO Disambiguation **************************************************************/ /* A DEBUG VCOM is available MICRO USB AB 5 J509. This corresponds to UART1 from * the i.MX6. UART1 connects to J509 via the CSIO_DAT10 and CSIO_DAT11 pins: */ #define GPIO_UART1_RX_DATA GPIO_UART1_RX_DATA_2 #define GPIO_UART1_TX_DATA GPIO_UART1_TX_DATA_2 /************************************************************************************ * Public Types ************************************************************************************/ /************************************************************************************ * Public Data ************************************************************************************/ #ifndef __ASSEMBLY__ #undef EXTERN #if defined(__cplusplus) #define EXTERN extern "C" extern "C" { #else #define EXTERN extern #endif /************************************************************************************ * Public Functions ************************************************************************************/ #undef EXTERN #if defined(__cplusplus) } #endif #endif /* __ASSEMBLY__ */ #endif /* __BOARDS_ARM_IMX6_SABRE_6QUAD_INCLUDE_BOARD_H */