118 lines
4.0 KiB
C
118 lines
4.0 KiB
C
/****************************************************************************
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* boards/arm/imxrt/imxrt1064-evk/src/imxrt_boot.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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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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#include <nuttx/board.h>
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#include <arch/board/board.h>
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#include "imxrt_start.h"
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#include "imxrt1064-evk.h"
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#include "arm_internal.h"
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#include "imxrt_flexspi_nor_boot.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: imxrt_ocram_initialize
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*
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* Description:
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* Called off reset vector to reconfigure the flexRAM
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* and finish the FLASH to RAM Copy.
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*
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****************************************************************************/
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void imxrt_ocram_initialize(void)
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{
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const uint32_t *src;
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uint32_t *dest;
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uint32_t regval;
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/* Reallocate 128K of Flex RAM from ITCM to OCRAM
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* Final Configuration is
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* 128 DTCM
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*
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* 128 FlexRAM OCRAM (202C:0000-202D:ffff)
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* 256 FlexRAM OCRAM (2028:0000-202B:ffff)
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* 512 System OCRAM2 (2020:0000-2027:ffff)
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* */
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putreg32(0xaa555555, IMXRT_IOMUXC_GPR_GPR17);
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regval = getreg32(IMXRT_IOMUXC_GPR_GPR16);
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putreg32(regval | GPR_GPR16_FLEXRAM_BANK_CFG_SELF, IMXRT_IOMUXC_GPR_GPR16);
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src = (uint32_t *) (LOCATE_IN_SRC(g_boot_data.start) + g_boot_data.size);
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dest = (uint32_t *) (g_boot_data.start + g_boot_data.size);
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while (dest < (uint32_t *) &_etext)
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{
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*dest++ = *src++;
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}
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}
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/****************************************************************************
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* Name: imxrt_boardinitialize
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*
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* Description:
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* All i.MX RT architectures must provide the following entry point. This
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* entry point is called early in the initialization -- after clocking and
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* memory have been configured but before caches have been enabled and
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* before any devices have been initialized.
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*
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****************************************************************************/
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void imxrt_boardinitialize(void)
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{
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/* Configure on-board LEDs if LED support has been selected. */
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#ifdef CONFIG_ARCH_LEDS
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imxrt_autoled_initialize();
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#endif
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}
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/****************************************************************************
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* Name: board_late_initialize
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*
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* Description:
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* If CONFIG_BOARD_LATE_INITIALIZE is selected, then an additional
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* initialization call will be performed in the boot-up sequence to a
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* function called board_late_initialize(). board_late_initialize() will
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* be called immediately after up_intitialize() is called and just before
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* the initial application is started. This additional initialization
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* phase may be used, for example, to initialize board-specific device
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* drivers.
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*
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****************************************************************************/
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#ifdef CONFIG_BOARD_LATE_INITIALIZE
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void board_late_initialize(void)
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{
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/* Perform board initialization */
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imxrt_bringup();
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}
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#endif /* CONFIG_BOARD_LATE_INITIALIZE */
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