f46782dde9
This is an extremely minimal port to the NXP i.MX RT, in the style of the
SAMD port It's largely based on the TinyUSB mimxrt implementation, using
the NXP SDK. It currently supports the Teensy 4.0 board with a REPL over
the USB-VCP interface.
This commit also adds the NXP SDK submodule (also from TinyUSB) to
lib/nxp_driver.
Note: if you already have the tinyusb submodule initialized recursively you
will need to run the following as the tinyusb sub-submodules have been
rearranged (upstream):
git submodule deinit lib/tinyusb
rm -rf .git/modules/lib/tinyusb
git submodule update --init lib/tinyusb
52 lines
1.8 KiB
C
52 lines
1.8 KiB
C
/*
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* Copyright 2018 NXP
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* All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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// Based on tinyusb/hw/bsp/teensy_40/teensy40_flexspi_nor_config.c
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#include "teensy40_flexspi_nor_config.h"
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/* Component ID definition, used by tools. */
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#ifndef FSL_COMPONENT_ID
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#define FSL_COMPONENT_ID "platform.drivers.xip_board"
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#endif
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/*******************************************************************************
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* Code
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******************************************************************************/
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#if defined(XIP_BOOT_HEADER_ENABLE) && (XIP_BOOT_HEADER_ENABLE == 1)
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#if defined(__CC_ARM) || defined(__ARMCC_VERSION) || defined(__GNUC__)
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__attribute__((section(".boot_hdr.conf")))
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#elif defined(__ICCARM__)
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#pragma location = ".boot_hdr.conf"
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#endif
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const flexspi_nor_config_t qspiflash_config = {
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.memConfig =
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{
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.tag = FLEXSPI_CFG_BLK_TAG,
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.version = FLEXSPI_CFG_BLK_VERSION,
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.readSampleClkSrc = kFlexSPIReadSampleClk_LoopbackFromDqsPad,
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.csHoldTime = 3u,
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.csSetupTime = 3u,
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// Enable DDR mode, Wordaddassable, Safe configuration, Differential clock
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.sflashPadType = kSerialFlash_4Pads,
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.serialClkFreq = kFlexSpiSerialClk_100MHz,
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.sflashA1Size = 2u * 1024u * 1024u,
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.lookupTable =
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{
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// Read LUTs
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FLEXSPI_LUT_SEQ(CMD_SDR, FLEXSPI_1PAD, 0xEB, RADDR_SDR, FLEXSPI_4PAD, 0x18),
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FLEXSPI_LUT_SEQ(DUMMY_SDR, FLEXSPI_4PAD, 0x06, READ_SDR, FLEXSPI_4PAD, 0x04),
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},
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},
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.pageSize = 256u,
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.sectorSize = 4u * 1024u,
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.blockSize = 256u * 1024u,
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.isUniformBlockSize = false,
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};
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#endif /* XIP_BOOT_HEADER_ENABLE */
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