| /**************************************************************************** |
| * boards/arm/sama5/giant-board/include/board.h |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. The |
| * ASF licenses this file to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance with the |
| * License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations |
| * under the License. |
| * |
| ****************************************************************************/ |
| |
| #ifndef __BOARDS_ARM_SAMA5_GIANT_BOARD_INCLUDE_BOARD_H |
| #define __BOARDS_ARM_SAMA5_GIANT_BOARD_INCLUDE_BOARD_H |
| |
| /**************************************************************************** |
| * Included Files |
| ****************************************************************************/ |
| |
| #include <nuttx/config.h> |
| |
| #ifndef __ASSEMBLY__ |
| # include <stdbool.h> |
| # include <nuttx/irq.h> |
| #endif |
| |
| #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 do 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 24MHz |
| * crystal. |
| */ |
| |
| # include <arch/board/board_sdram.h> |
| |
| #elif defined(CONFIG_GIANT_BOARD_492MHZ) |
| |
| /* This configuration results in a CPU clock of 492MHz. |
| * |
| * In this configuration, UPLL is the source of the UHPHS clock (if enabled). |
| */ |
| |
| # include <arch/board/board_492mhz.h> |
| |
| #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 (24000000) /* MAINOSC: 12MHz crystal on-board */ |
| #define BOARD_SLOWCLK_FREQUENCY (32768) /* Slow Clock: 32.768KHz */ |
| |
| /* LED definitions **********************************************************/ |
| |
| /* There is a status LED on board the Giant Board. |
| * |
| * ------------------------------ ------------------- --------------------- |
| * SAMA5D27 PIO SIGNAL USAGE |
| * ------------------------------ ------------------- --------------------- |
| * PA6 STATUS_LED Orange LED |
| * ------------------------------ ------------------- --------------------- |
| */ |
| |
| /* LED index values for use with board_userled() */ |
| |
| #define BOARD_ORANGE 0 |
| #define BOARD_NLEDS 1 |
| |
| /* LED bits for use with board_userled_all() */ |
| |
| #define BOARD_ORANGE_BIT (1 << BOARD_ORANGE) |
| |
| /* 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 Orange 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. |
| */ |
| |
| /* 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. |
| */ |
| |
| /* UART1. There is a TTL serial connection available on |
| * pins RX and TX. This is be driven by UART1. |
| * |
| * ---- ------------------------ ------------- |
| * J1/2 SCHEMATIC SAMA5D2 |
| * PIN NAME(s) PIO FUNCTION |
| * ---- ------------------------ ------------- |
| * 14 UART1_RX PD3 UTXD1 |
| * 15 UART1_TX PD2 URXD1 |
| * ---- ------------------------ ------------- |
| */ |
| |
| #define PIO_UART1_RXD PIO_UART1_RXD_1 |
| #define PIO_UART1_TXD PIO_UART1_TXD_1 |
| |
| /* FLEXCOM4 is available as a UART. |
| * |
| * ----- ------- ------------- |
| * J1/2 BOARD SAMA5D2 |
| * PIN NAME PIO FUNCTION |
| * ----- ------- ------------- |
| * 6 AD2 PD21 FLEXCOM4 |
| * 9 AD3 PD22 FLEXCOM4 |
| * ----- ------- ------------- |
| */ |
| |
| #define PIO_FLEXCOM4_IO0 PIO_FLEXCOM4_IO0_2 |
| #define PIO_FLEXCOM4_IO1 PIO_FLEXCOM4_IO1_2 |
| |
| /* PIO pins */ |
| |
| #define PIO_TX IO_ |
| |
| /* SDIO - Used for both Port 0 & 1 ******************************************/ |
| |
| /* 386 KHz for initial inquiry stuff */ |
| |
| #define BOARD_SDMMC_IDMODE_PRESCALER SDMMC_SYSCTL_SDCLKFS_DIV256 |
| #define BOARD_SDMMC_IDMODE_DIVISOR SDMMC_SYSCTL_DVS_DIV(2) |
| |
| /* 24.8MHz for other modes */ |
| |
| #define BOARD_SDMMC_MMCMODE_PRESCALER SDMMC_SYSCTL_SDCLKFS_DIV8 |
| #define BOARD_SDMMC_MMCMODE_DIVISOR SDMMC_SYSCTL_DVS_DIV(1) |
| |
| #define BOARD_SDMMC_SD1MODE_PRESCALER SDMMC_SYSCTL_SDCLKFS_DIV8 |
| #define BOARD_SDMMC_SD1MODE_DIVISOR SDMMC_SYSCTL_DVS_DIV(1) |
| |
| #define BOARD_SDMMC_SD4MODE_PRESCALER SDMMC_SYSCTL_SDCLKFS_DIV8 |
| #define BOARD_SDMMC_SD4MODE_DIVISOR SDMMC_SYSCTL_DVS_DIV(1) |
| |
| /**************************************************************************** |
| * Assembly Language Macros |
| ****************************************************************************/ |
| |
| #ifdef __ASSEMBLY__ |
| .macro config_sdram |
| .endm |
| #endif /* __ASSEMBLY__ */ |
| |
| #endif /* __BOARDS_ARM_SAMA5_GIANT_BOARD_INCLUDE_BOARD_H */ |
