imxrt/include/bsp.h

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /**
0004  * @file
0005  *
0006  * @ingroup RTEMSBSPsARMimxrt
0007  */
0008
0009 /*
0010  * Copyright (C) 2020 embedded brains GmbH & Co. KG
0011  *
0012  * Redistribution and use in source and binary forms, with or without
0013  * modification, are permitted provided that the following conditions
0014  * are met:
0015  * 1. Redistributions of source code must retain the above copyright
0016  *    notice, this list of conditions and the following disclaimer.
0017  * 2. Redistributions in binary form must reproduce the above copyright
0018  *    notice, this list of conditions and the following disclaimer in the
0019  *    documentation and/or other materials provided with the distribution.
0020  *
0021  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0022  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0023  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0024  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0025  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0026  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0027  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0028  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0029  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0030  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0031  * POSSIBILITY OF SUCH DAMAGE.
0032  */
0033
0034 #ifndef LIBBSP_ARM_IMXRT_BSP_H
0035 #define LIBBSP_ARM_IMXRT_BSP_H
0036
0037 /**
0038  * @defgroup RTEMSBSPsARMimxrt NXP i.MXRT
0039  *
0040  * @ingroup RTEMSBSPsARM
0041  *
0042  * @brief NXP i.MXRT Board Support Package.
0043  *
0044  * @{
0045  */
0046
0047 #include <bspopts.h>
0048
0049 #include <rtems.h>
0050
0051 #include <bsp/default-initial-extension.h>
0052
0053 #ifdef __cplusplus
0054 extern "C" {
0055 #endif /* __cplusplus */
0056
0057 #define BSP_FEATURE_IRQ_EXTENSION
0058
0059 #define BSP_FDT_IS_SUPPORTED
0060 extern const unsigned char imxrt_dtb[] __attribute__(( __aligned__(8) ));
0061 extern const size_t imxrt_dtb_size;
0062
0063 void *imx_get_reg_of_node(const void *fdt, int node);
0064
0065 rtems_vector_number imx_get_irq_of_node(
0066   const void *fdt,
0067   int node,
0068   size_t index
0069 );
0070
0071 bool imxrt_fdt_node_is_enabled(const void *fdt, int node);
0072
0073 /*
0074  * About 50% between `basepri` in arm_interrupt_disable and the maximum for this
0075  * chip.
0076  */
0077 #define BSP_ARMV7M_IRQ_PRIORITY_DEFAULT (13 << 4)
0078 #define BSP_ARMV7M_SYSTICK_PRIORITY (14 << 4)
0079
0080 #define BSP_ARMV7M_SYSTICK_FREQUENCY imxrt_systick_frequency()
0081 uint32_t imxrt_systick_frequency(void);
0082
0083 void imxrt_lpspi_init(void);
0084 void imxrt_lpi2c_init(void);
0085 void imxrt_ffec_init(void);
0086 void BOARD_InitDEBUG_UARTPins(void);
0087
0088 #ifdef __cplusplus
0089 }
0090 #endif /* __cplusplus */
0091
0092 /* @} */
0093
0094 #endif /* LIBBSP_ARM_IMXRT_BSP_H */