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发表于 2018-6-25 21:14:07
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在我的STM32F429板子上测试,Buildroot生成的文件系统可以使用。之前我构造的文件系统是按照网上搜索的步骤一步一步做出来的,现在简单多了。
鉴于我的板子和STM32F429 Discovery有些区别,需要修改一些源码,所以没有测试buildroot生成的u-boot和kernel,下面就是使用buildroot root filesystem启动linux的log:
- ## 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
- / #
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