使用Buildroot编译STM32F429 linux内核，文件系统成功

## Booting kernel from Legacy Image at c0007fb4 ...

   Image Name:   linux-4.12_STM32F429

   Image Type:   ARM Linux Kernel Image (uncompressed)

   Data Size:    2994400 Bytes =  2.9 MB

   Load Address: c0008000

   Entry Point:  c0008001

   Verifying Checksum ... OK

## Loading init Ramdisk from Legacy Image at c0400000 ...

   Image Name:

   Image Type:   ARM Linux RAMDisk Image (uncompressed)

   Data Size:    459264 Bytes = 448.5 kB

   Load Address: 00000000

   Entry Point:  00000000

   Verifying Checksum ... OK

## Flattened Device Tree blob at c0800000

   Booting using the fdt blob at 0xc0800000

   Loading Kernel Image ... OK

OK

   Loading Ramdisk to c3f8f000, end c3fff200 ... OK

   Loading Device Tree to c3f88000, end c3f8eece ... OK



Starting kernel ...



[    0.000000] Booting Linux on physical CPU 0x0

[    0.000000] Linux version 4.14.0-rc4 (hw@localhost.localdomain) (gcc ver

sion 5.4.1 20160609 (release) [ARM/embedded-5-branch revision 237715] (GNU

Tools for ARM Embedded Processors)) #3 PREEMPT Tue Oct 17 14:53:53 CST 2017

[    0.000000] CPU: ARMv7-M [410fc241] revision 1 (ARMv7M), cr=00000000

[    0.000000] CPU: unknown data cache, unknown instruction cache

[    0.000000] OF: fdt: Machine model: STMicroelectronics STM32F429i-DISCO

board

[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 16256

[    0.000000] Kernel command line: stm32_platform=stm-disco console=ttyS0,

115200 panic=10

[    0.000000] PID hash table entries: 256 (order: -2, 1024 bytes)

[    0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes

)

[    0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)

[    0.000000] Memory: 61364K/65536K available (1176K kernel code, 132K rwd

ata, 380K rodata, 1160K init, 114K bss, 4172K reserved, 0K cma-reserved)

[    0.000000] Virtual kernel memory layout:

[    0.000000]     vector  : 0x00000000 - 0x00001000   (   4 kB)

[    0.000000]     fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)

[    0.000000]     vmalloc : 0x00000000 - 0xffffffff   (4095 MB)

[    0.000000]     lowmem  : 0xc0000000 - 0xc4000000   (  64 MB)

[    0.000000]       .text : 0xc0008000 - 0xc012e378   (1177 kB)

[    0.000000]       .init : 0xc01a0000 - 0xc02c2000   (1160 kB)

[    0.000000]       .data : 0xc02c2000 - 0xc02e30e0   ( 133 kB)

[    0.000000]        .bss : 0xc02e30e0 - 0xc02ffab4   ( 115 kB)

[    0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1

[    0.000000] Preemptible hierarchical RCU implementation.

[    0.000000]  Tasks RCU enabled.

[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16

[    0.000000] /soc/interrupt-controller@40013c00: 23 External IRQs detecte

d

[    0.000000] clocksource: arm_system_timer: mask: 0xffffff max_cycles: 0x

ffffff, max_idle_ns: 355517175 ns

[    0.000000] ARM System timer initialized as clocksource

[    0.000000] /soc/timer@40000c00: STM32 clockevent driver initialized (32

 bits)

[    0.000000] sched_clock: 32 bits at 100 Hz, resolution 10000000ns, wraps

 every 21474836475000000ns

[    0.010000] Calibrating delay loop... 13.33 BogoMIPS (lpj=66688)

[    0.140000] pid_max: default: 4096 minimum: 301

[    0.140000] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)

[    0.140000] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 by

tes)

[    0.160000] Hierarchical SRCU implementation.

[    0.180000] devtmpfs: initialized

[    0.320000] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xfffffff

f, max_idle_ns: 19112604462750000 ns

[    0.330000] pinctrl core: initialized pinctrl subsystem

[    0.450000] stm32f429-pinctrl soc:pin-controller: GPIOA bank added

[    0.460000] stm32f429-pinctrl soc:pin-controller: GPIOB bank added

[    0.460000] stm32f429-pinctrl soc:pin-controller: GPIOC bank added

[    0.470000] stm32f429-pinctrl soc:pin-controller: GPIOD bank added

[    0.470000] stm32f429-pinctrl soc:pin-controller: GPIOE bank added

[    0.480000] stm32f429-pinctrl soc:pin-controller: GPIOF bank added

[    0.480000] stm32f429-pinctrl soc:pin-controller: GPIOG bank added

[    0.490000] stm32f429-pinctrl soc:pin-controller: GPIOH bank added

[    0.490000] stm32f429-pinctrl soc:pin-controller: GPIOI bank added

[    0.500000] stm32f429-pinctrl soc:pin-controller: GPIOJ bank added

[    0.500000] stm32f429-pinctrl soc:pin-controller: GPIOK bank added

[    0.500000] stm32f429-pinctrl soc:pin-controller: Pinctrl STM32 initiali

zed

[    0.610000] stm32-dma 40026000.dma-controller: STM32 DMA driver register

ed

[    0.630000] stm32-dma 40026400.dma-controller: STM32 DMA driver register

ed

[    0.640000] random: fast init done

[    0.650000] clocksource: Switched to clocksource arm_system_timer

[    5.610000] Trying to unpack rootfs image as initramfs...

[    6.040000] Freeing initrd memory: 452K

[    6.060000] workingset: timestamp_bits=30 max_order=14 bucket_order=0

[    6.270000] io scheduler noop registered (default)

[    6.270000] io scheduler mq-deadline registered

[    6.270000] io scheduler kyber registered

[    6.280000] STM32 USART driver initialized

[    6.290000] 40011000.serial: ttyS0 at MMIO 0x40011000 (irq = 32, base_ba

ud = 5250000) is a stm32-usart

[    6.640000] console [ttyS0] enabled

[    6.860000] brd: module loaded

[    6.970000] stm32_rtc 40002800.rtc: Can't enter in init mode. Prescaler

config failed.

[    6.980000] stm32_rtc: probe of 40002800.rtc failed with error -110

[    6.980000] i2c /dev entries driver

[    6.990000] IR NEC protocol handler initialized

[    7.000000] IR RC5(x/sz) protocol handler initialized

[    7.000000] IR RC6 protocol handler initialized

[    7.010000] IR JVC protocol handler initialized

[    7.010000] IR Sony protocol handler initialized

[    7.020000] IR SANYO protocol handler initialized

[    7.020000] IR Sharp protocol handler initialized

[    7.030000] IR MCE Keyboard/mouse protocol handler initialized

[    7.030000] IR XMP protocol handler initialized

[    7.080000] input: gpio_keys as /devices/platform/gpio_keys/input/input0

[    7.090000] hctosys: unable to open rtc device (rtc0)

[    7.220000] Freeing unused kernel memory: 1160K

[    7.230000] This architecture does not have kernel memory protection.

Initializing random number generator... done.



Welcome to Buildroot

buildroot login: root

Jan  1 00:00:17 login[47]: root login on 'console'

~ # ls

~ # pwd

/root

~ # cd ..

/ # ls

bin      init     linuxrc  opt      run      tmp

dev      lib      media    proc     sbin     usr

etc      lib32    mnt      root     sys      var

/ # ls dev

console             mem                 ram3

cpu_dma_latency     memory_bandwidth    ram4

full                network_latency     ram5

gpiochip0           network_throughput  ram6

gpiochip1           null                ram7

gpiochip10          pts                 ram8

gpiochip2           ram0                ram9

gpiochip3           ram1                random

gpiochip4           ram10               shm

gpiochip5           ram11               tty

gpiochip6           ram12               ttyS0

gpiochip7           ram13               urandom

gpiochip8           ram14               zero

gpiochip9           ram15

kmsg                ram2

/ #