NXP Semiconductors Layerscape LS1028A BSP, Руководство пользователя, Страница: 54 / 136

Memory policy: ECC disabled, Data cache writealloc
PERCPU: Embedded 7 pages/cpu @8901c000 s7936 r8192 d12544 u32768
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 520720
Kernel command line: root=/dev/ram rw console=ttyLP0,115200
PID hash table entries: 4096 (order: 2, 16384 bytes)
[...]
ls1021atwr login: root
root@ls1021atwr:~#
2. After the kernel boot up to the console, you can type any shell command in the LPUART TERMINAL.
4.2.5 Flex Serial Peripheral Interface (FlexSPI)
U-Boot Configuration
Make sure your boot mode support FlexSPI.
Use FlexSPI boot mode to boot on board, please check the board user manual and boot from FlexSPI. (or some other boot mode
decide by your board.)
Following Config options needs to be enabled for FlexSPI.
• CONFIG_NXP_FSPI=y
• CONFIG_FSPI_AHB_EN_4BYTE=y
• CONFIG_SYS_FSPI_AHB_INIT=y
Kernel Configure Tree View Options
Device Drivers --->
Memory Technology Device (MTD) support
RAM/ROM/Flash chip drivers --->
< > Detect flash chips by Common Flash Interface (CFI) probe
< > Detect non-CFI AMD/JEDEC-compatible flash chips
< > Support for RAM chips in bus mapping
< > Support for ROM chips in bus mapping
< > Support for absent chips in bus mapping
Self-contained MTD device drivers --->
<*> Support most SPI Flash chips (AT26DF, M25P, W25X, ...)
< > NAND Device Support ---
<*> SPI-NOR device support --->
the framework for SPI-NOR support
<*> NXP Flex SPI controller
CONFIG_SPI_NXP_FLEXSPI:
This enabled support for the FlexSPI controller in master mode.
Symbol: SPI_NXP_FLEXSPI [=y]
Type : tristate
Prompt: NXP Flex SPI controller
Location:
-> Device Drivers
-> Memory Technology Device (MTD) support (MTD [=y])
Linux kernel
Layerscape LS1028A BSP User Guide, Rev. 0.3, 04/2019
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NXP Semiconductors