/************************************************************************************ * configs/sama5d2-xult/include/board.h * * Copyright (C) 2015 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 __CONFIGS_SAMA5D2_XULT_INCLUDE_BOARD_H #define __CONFIGS_SAMA5D2_XULT_INCLUDE_BOARD_H /************************************************************************************ * Included Files ************************************************************************************/ #include #ifndef __ASSEMBLY__ # include # include #endif /************************************************************************************ * Pre-processor Definitions ************************************************************************************/ /* Clocking *************************************************************************/ /* After power-on reset, the SAMA5 device is running on a 12MHz internal RC. These * definitions will configure operational clocking. */ /* On-board crystal frequencies */ #define BOARD_MAINOSC_FREQUENCY (12000000) /* MAINOSC: 12MHz crystal on-board */ #define BOARD_SLOWCLK_FREQUENCY (32768) /* Slow Clock: 32.768KHz */ #if defined(CONFIG_SAMA5_BOOT_SDRAM) /* When booting from SDRAM, NuttX is loaded in SDRAM by an intermediate bootloader. * That bootloader had to have already configured the PLL and SDRAM for proper * operation. * * In this case, we don not reconfigure the clocking. Rather, we need to query * the register settings to determine the clock frequencies. We can only assume that * the Main clock source is the on-board 12MHz crystal. */ # include #elif defined(CONFIG_SAMA5D2XULT_384MHZ) /* OHCI Only. This is an alternative slower configuration that will produce a 48MHz * USB clock with the required accuracy using only PLLA. When PPLA is used to clock * OHCI, an additional requirement is the PLLACK be a multiple of 48MHz. This setup * results in a CPU clock of 384MHz. * * This case is only interesting for experimentation. */ # include #elif defined(CONFIG_SAMA5D2XULT_528MHZ) /* This is the configuration results in a CPU clock of 528MHz. * * In this configuration, UPLL is the source of the UHPHS clock (if enabled). */ # include #else /* #elif defined(CONFIG_SAMA5D2XULT_396MHZ) */ /* This is the configuration provided in the Atmel example code. This setup results * in a CPU clock of 396MHz. * * In this configuration, UPLL is the source of the UHPHS clock (if enabled). */ # include #endif /* LED definitions ******************************************************************/ /* There is an RGB LED on board the SAMA5D2-XULT. The RED component is driven by * the SDHC_CD pin (PA13) and so will not be used. The LEDs are provided VDD_LED * and so bringing the LED low will will illuminated the LED. * * ------------------------------ ------------------- ------------------------- * SAMA5D2 PIO SIGNAL USAGE * ------------------------------ ------------------- ------------------------- * PA13 SDHC_CD_PA13 Red LED * PB5 LED_GREEN_PB5 Green LED * PB0 LED_BLUE_PB0 Blue LED * ------------------------------ ------------------- ------------------------- */ #ifndef CONFIG_ARCH_LEDS /* LED index values for use with board_userled() */ #define BOARD_GREEN 0 #define BOARD_BLUE 1 #define BOARD_NLEDS 2 /* LED bits for use with board_userled_all() */ #define BOARD_GREEN_BIT (1 << BOARD_GREEN) #define BOARD_BLUE_BIT (1 << BOARD_BLUE) #else /* LED index values for use with board_userled() */ #define BOARD_BLUE 0 #define BOARD_NLEDS 1 /* LED bits for use with board_userled_all() */ #define BOARD_BLUE_BIT (1 << BOARD_BLUE) #endif /* 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_leds.c. The LEDs are used to encode OS-related * events as follows. Note that only the GREEN LED is used in this case * * SYMBOL Val Meaning Green 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 if the Green 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 ***************************************************************/ /* A single button, PB_USER (PB6), is available on the SAMA5D2-XULT * * ------------------------------ ------------------- ------------------------- * SAMA5D2 PIO SIGNAL USAGE * ------------------------------ ------------------- ------------------------- * PB6 USER_PB_PB6 PB_USER push button * ------------------------------ ------------------- ------------------------- * * Closing PB_USER will bring PB6 to ground so 1) PB6 should have a weak pull-up, * and 2) when PB_USER is pressed, a low value will be senses. */ #define BUTTON_USER 0 #define NUM_BUTTONS 1 #define BUTTON_USER_BIT (1 << BUTTON_USER) /* Pin disambiguation ***************************************************************/ /* Alternative pin selections are provided with a numeric suffix like _1, _2, etc. * Drivers, however, will use the pin selection without the numeric suffix. * Additional definitions are required in this board.h file. For example, if we * wanted the PCK0on PB26, then the following definition should appear in the * board.h header file for that board: * * #define PIO_PMC_PCK0 PIO_PMC_PCK0_1 * * The PCK logic will then automatically configure PB26 as the PCK0 pin. */ /* DEBUG / DBGU Port (J1). There is a TTL serial connection available on * pins 2 and 3 of the DEBUG connector. This may be driven by UART1, * depending upon the setting of JP2 (DBGU_PE on the schematic, DEBUG_DIS * on the board): * * ---- ------------------------ ------------- * J1 SCHEMATIC SAMA5D2 * PIN NAME(s) PIO FUNCTION * ---- ------------------------ ------------- * 2 DBGU_TXD DBGU_UTXD1_PD3 PD3 UTXD1 * 3 DBGU_RXD DBGU_URXD1_PD2 PD2 URXD1 * ---- ------------------------ ------------- */ #define PIO_UART1_RXD PIO_UART1_RXD_1 #define PIO_UART1_TXD PIO_UART1_TXD_1 /* Standard UART on Arduino connector (J21) is FLEXCOM4. * * ---- ------- ------------- * J21 BOARD SAMA5D2 * PIN NAME PIO FUNCTION * ---- ------- ------------- * 7 F4_TXD PD12 FLEXCOM4 * 8 F4_RXD PD13 FLEXCOM4 * ---- ------- ------------- */ #define PIO_FLEXCOM4_IO0 PIO_FLEXCOM4_IO0_2 #define PIO_FLEXCOM4_IO1 PIO_FLEXCOM4_IO1_2 /* Other USARTs are available on J22: * * ---- ------- ------------- * J22 BOARD SAMA5D2 * PIN NAME PIO FUNCTION * ---- ------- ------------- * 3 F0_TXD PB28 FLEXCOM0 * 4 F0_RXD PB29 FLEXCOM0 * 5 F3_TXD PB23 FLEXCOM3 * 6 F3_RXD PB22 FLEXCOM3 * ---- ------- ------------- */ #define PIO_FLEXCOM3_IO0 PIO_FLEXCOM3_IO0_2 #define PIO_FLEXCOM3_IO1 PIO_FLEXCOM3_IO1_2 /* UARTs available on EXT1 * * ---- ------- ------------- * EXT1 BOARD SAMA5D2 * PIN NAME PIO FUNCTION * ---- ------- ------------- * 13 UART_RX PA23 FLEXCOM1 * 14 UART_TX PA24 FLEXCOM1 * ---- ------- ---- -------- */ /* UARTs available on EXT2 * * ---- ------- ------------- * EXT2 BOARD SAMA5D2 * PIN NAME PIO FUNCTION * ---- ------- ------------- * 13 UART_RX PB29 FLEXCOM0 * 14 UART_TX PB28 FLEXCOM0 * ---- ------- ---- -------- */ /************************************************************************************ * Assembly Language Macros ************************************************************************************/ #ifdef __ASSEMBLY__ .macro config_sdram .endm #endif /* __ASSEMBLY__ */ #endif /* __CONFIGS_SAMA5D2_XULT_INCLUDE_BOARD_H */