STM32

新出的STM32F750成功运行Linux

2019-12-11 18:38发布

站内问答 / STM32/STM8
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前段时间ST推出了Value Line的STM32F750和H750两个系列，看了一下选型表，F750有LQFP144封装，正好适合我的STM32 linux板子。
于是，双十一买了几片。同时，我对我的linux板做了小幅改版：将SPI Flash容量扩大到32MB并连接到F750的QSPI BANK1，添加了CAN收发器和接口，增加了两个I2C外设（温湿度传感器和气压传感器）。板子做回来后先焊了一片，调试过程还算比较顺利，现在u-boot和Linux都工作起来了，下面是系统启动log，F750速度还是相当快的（427.62 BogoMIPS，F429跑Linux只有35.84 BogoMIPS），QSPI的加载速度也很给力。下一步我准备多测试几种STM32外设的Linux driver，emcraft现在的SDK比两三年前多了不少外设驱动，可以都试试看。

  2. U-Boot 2010.03 (Nov 26 2018 - 21:30:21)

  4. CPU  : STM32F7 (Cortex-M7)
  5. Freqs: SYSCLK=216MHz,HCLK=216MHz,PCLK1=54MHz,PCLK2=108MHz
  6. Board: STM32F750 Rev 1.0, www.emcraft.com
  7. DRAM:  64 MB
  8. In:    serial
  9. Out:   serial
  10. Err:   serial
  11. QSPI:  32 MB mapped at 0x90000000
  12. Net:   miiphy_register done.
  13. eth hw init done.
  14. STM32_MAC
  15. Hit any key to stop autoboot:  0
  16. Booting from QSPI
  17. ## Booting kernel from Legacy Image at c0007fc0 ...
  18.    Image Name:   Linux-4.2.0
  19.    Image Type:   ARM Linux Multi-File Image (uncompressed)
  20.    Data Size:    7496295 Bytes =  7.1 MB
  21.    Load Address: c0008000
  22.    Entry Point:  c0008001
  23.    Contents:
  24.       Image 0: 7471388 Bytes =  7.1 MB
  25.       Image 1: 24895 Bytes = 24.3 kB
  26.    Verifying Checksum ... OK
  27. ## Flattened Device Tree from multi component Image at C0007FC0
  28.    Booting using the fdt at 0xc0728128
  29.    Loading Multi-File Image ... OK
  30. OK
  31. WARNING: legacy format multi component image overwritten
  32.    Loading Device Tree to c3ff6000, end c3fff13e ... OK

  34. Starting kernel ...

  36. Booting Linux on physical CPU 0x0
  37. Linux version 4.2.0 (hw@localhost.localdomain) (gcc version 4.4.1 (Sourcery G++ Lite 2010
  38. q1-189) ) #90 Tue Dec 4 03:32:33 EST 2018
  39. CPU: ARMv7-M [410fc271] revision 1 (ARMv7M), cr=00000000
  40. CPU: WBA data cache, WBA instruction cache
  41. Machine model: EmCraft Systems STM32F7-SOM board
  42. Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 16256
  43. Kernel command line: stm32_platform=stm32f7-disco console=ttyS0,115200 panic=10 ip=169.25
  44. 4.1.10:169.254.1.2:::stm32f7-disco:eth0:off
  45. PID hash table entries: 256 (order: -2, 1024 bytes)
  46. Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
  47. Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
  48. Memory: 56432K/65536K available (2523K kernel code, 181K rwdata, 588K rodata, 4000K init,
  49. 111K bss, 9104K reserved, 0K cma-reserved)
  50. Virtual kernel memory layout:
  51.     vector  : 0x00000000 - 0x00001000   (   4 kB)
  52.     fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
  53.     vmalloc : 0x00000000 - 0xffffffff   (4095 MB)
  54.     lowmem  : 0xc0000000 - 0xc4000000   (  64 MB)
  55.       .text : 0xc0008000 - 0xc0312000   (3112 kB)
  56.       .init : 0xc0312000 - 0xc06fa000   (4000 kB)
  57.       .data : 0xc06fa000 - 0xc07277c0   ( 182 kB)
  58.        .bss : 0xc072811c - 0xc0743e84   ( 112 kB)
  59. NR_IRQS:16 nr_irqs:16 16
  60. /interrupt-controller@40013c00: 24 External IRQs detected
  61. clocksource: arm_system_timer: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 27651335
  62. 8 ns
  63. ARM System timer initialized as clocksource
  64. /soc/timer@40000000: STM32 clockevent driver initialized (32 bits)
  65. sched_clock: 32 bits at 100 Hz, resolution 10000000ns, wraps every 21474836475000000ns
  66. Calibrating delay loop... 427.62 BogoMIPS (lpj=2138112)
  67. pid_max: default: 4096 minimum: 301
  68. Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
  69. Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
  70. devtmpfs: initialized
  71. clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275
  72. 0000 ns
  73. pinctrl core: initialized pinctrl subsystem
  74. NET: Registered protocol family 16
  75. stm32-pinctrl pin-controller: nbanks = 11
  76. stm32-pinctrl pin-controller: nfunctions = 20
  77. stm32-pinctrl pin-controller: ngroups = 23
  78. stm32-pinctrl pin-controller: GPIOA bank added.
  79. stm32-pinctrl pin-controller: GPIOB bank added.
  80. stm32-pinctrl pin-controller: GPIOC bank added.
  81. stm32-pinctrl pin-controller: GPIOD bank added.
  82. stm32-pinctrl pin-controller: GPIOE bank added.
  83. stm32-pinctrl pin-controller: GPIOF bank added.
  84. stm32-pinctrl pin-controller: GPIOG bank added.
  85. stm32-pinctrl pin-controller: GPIOH bank added.
  86. stm32-pinctrl pin-controller: GPIOI bank added.
  87. stm32-pinctrl pin-controller: GPIOJ bank added.
  88. stm32-pinctrl pin-controller: GPIOK bank added.
  89. stm32-pinctrl pin-controller: Function[0         name:i2c_1,    groups:1]
  90. stm32-pinctrl pin-controller: Function[1         name:i2c_2,    groups:1]
  91. stm32-pinctrl pin-controller: Function[2         name:i2c_3,    groups:1]
  92. stm32-pinctrl pin-controller: Function[3         name:mac,      groups:2]
  93. stm32-pinctrl pin-controller: Function[4         name:sdio,     groups:1]
  94. stm32-pinctrl pin-controller: Function[5         name:spi_2,    groups:1]
  95. stm32-pinctrl pin-controller: Function[6         name:spi_4,    groups:1]
  96. stm32-pinctrl pin-controller: Function[7         name:spi_5,    groups:1]
  97. stm32-pinctrl pin-controller: Function[8         name:usart1,   groups:1]
  98. stm32-pinctrl pin-controller: Function[9         name:usart6,   groups:1]
  99. stm32-pinctrl pin-controller: Function[10        name:usart7,   groups:1]
  100. stm32-pinctrl pin-controller: Function[11        name:usb_fs,   groups:1]
  101. stm32-pinctrl pin-controller: Function[12        name:usb_hs,   groups:1]
  102. stm32-pinctrl pin-controller: Function[13        name:can_1,    groups:1]
  103. stm32-pinctrl pin-controller: Function[14        name:adc1_in0_pin,     groups:1]
  104. stm32-pinctrl pin-controller: Function[15        name:dac_out2_pin,     groups:1]
  105. stm32-pinctrl pin-controller: Function[16        name:ltdc,     groups:1]
  106. stm32-pinctrl pin-controller: Function[17        name:sai_2,    groups:1]
  107. stm32-pinctrl pin-controller: Function[18        name:i2c_4,    groups:1]
  108. stm32-pinctrl pin-controller: Function[19        name:gpio,     groups:3]
  109. stm32-dma 40026000.dma: STM32 DMA driver registered
  110. stm32-dma 40026400.dma: STM32 DMA driver registered
  111. SCSI subsystem initialized
  112. usbcore: registered new interface driver usbfs
  113. usbcore: registered new interface driver hub
  114. usbcore: registered new device driver usb
  115. soc:phy_hs supply vcc not found, using dummy regulator
  116. soc:phy_fs supply vcc not found, using dummy regulator
  117. pps_core: LinuxPPS API ver. 1 registered
  118. pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
  119. PTP clock support registered
  120. Advanced Linux Sound Architecture Driver Initialized.
  121. Bluetooth: Core ver 2.20
  122. NET: Registered protocol family 31
  123. Bluetooth: HCI device and connection manager initialized
  124. Bluetooth: HCI socket layer initialized
  125. Bluetooth: L2CAP socket layer initialized
  126. Bluetooth: SCO socket layer initialized
  127. clocksource: Switched to clocksource arm_system_timer
  128. NET: Registered protocol family 2
  129. TCP established hash table entries: 1024 (order: 0, 4096 bytes)
  130. TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
  131. TCP: Hash tables configured (established 1024 bind 1024)
  132. UDP hash table entries: 256 (order: 0, 4096 bytes)
  133. UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
  134. NET: Registered protocol family 1
  135. RPC: Registered named UNIX socket transport module.
  136. RPC: Registered udp transport module.
  137. RPC: Registered tcp transport module.
  138. RPC: Registered tcp NFSv4.1 backchannel transport module.
  139. Power Management for STM32
  140. futex hash table entries: 16 (order: -5, 192 bytes)
  141. jffs2: version 2.2. (NAND) (SUMMARY)  漏 2001-2006 Red Hat, Inc.
  142. fuse init (API version 7.23)
  143. Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
  144. io scheduler noop registered
  145. io scheduler cfq registered (default)
  146. stm32-pinctrl pin-controller: maps: function gpio group pwms num 2
  147. stm32-pwm pwm0: basing on TIM3.1(x16)
  148. stm32-pinctrl pin-controller: maps: function ltdc group ltdc-0 num 29
  149. stm32_lcdfb 40016800.ltdc: fb0: fb device registered successfully
  150. STM32 USART driver initialized
  151. stm32-pinctrl pin-controller: maps: function usart1 group usart1-0 num 3
  152. 40011000.serial: ttyS0 at MMIO 0x40011000 (irq = 34, base_baud = 6750000) is a stm32-usar
  153. t
  154. console [ttyS0] enabled
  155. stm32-pinctrl pin-controller: maps: function usart6 group usart6-0 num 3
  156. 40011400.serial: ttyS5 at MMIO 0x40011400 (irq = 35, base_baud = 6750000) is a stm32-usar
  157. t
  158. nbd: registered device at major 43
  159. stm32-pinctrl pin-controller: maps: function dac_out2_pin group dac-0 num 2
  160. stm32_dac 40007400.dac: dac1: no timer assigned, DMA functionality is not available
  161. stm32_dac 40007400.dac: created 1 character devices with MAJOR 248
  162. 2 ofpart partitions found on MTD device physmap-stm-flash.0
  163. Creating 2 MTD partitions on "physmap-stm-flash.0":
  164. 0x000000000000-0x000000020000 : "stm_flash_uboot"
  165. 0x000000040000-0x000000100000 : "stm_flash_unused"
  166. stm32-pinctrl pin-controller: maps: function spi_5 group spi_5-0 num 4
  167. stm32-spi 40015000.spi: SPI Controller 4 at 40015000,irq=38,hz=108000000
  168. CAN device driver interface
  169. stm32-pinctrl pin-controller: maps: function can_1 group can_1-0 num 3
  170. stm32-can 40006400.can: device registered (reg=40006400, irq=31)
  171. stm32-pinctrl pin-controller: maps: function mac group mac_rmii num 10
  172. stmmac - user ID: 0x10, Synopsys ID: 0x35
  173. Ring mode enabled
  174. DMA HW capability register supported
  175. Enhanced/Alternate descriptors
  176.         Enabled extended descriptors
  177. RX Checksum Offload Engine supported (type 2)
  178. TX Checksum insertion supported
  179. Wake-Up On Lan supported
  180. Enable RX Mitigation via HW Watchdog Timer
  181. stm32-dwmac 40028000.ethernet eth0: No MDIO subnode found
  182. libphy: stmmac: probed
  183. eth0: PHY ID 0007c0f1 at 0 IRQ POLL (stmmac-0:00) active
  184. PPP generic driver version 2.4.2
  185. PPP BSD Compression module registered
  186. PPP Deflate Compression module registered
  187. usbcore: registered new interface driver rt2800usb
  188. stm32-pinctrl pin-controller: maps: function usb_hs group usb_hs-0 num 3
  189. dwc2 40040000.usb: DWC OTG Controller
  190. dwc2 40040000.usb: new USB bus registered, assigned bus number 1
  191. dwc2 40040000.usb: irq 56, io mem 0x00000000
  192. usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
  193. usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
  194. usb usb1: Product: DWC OTG Controller
  195. usb usb1: Manufacturer: Linux 4.2.0 dwc2_hsotg
  196. usb usb1: SerialNumber: 40040000.usb
  197. hub 1-0:1.0: USB hub found
  198. hub 1-0:1.0: 1 port detected
  199. stm32-pinctrl pin-controller: maps: function usb_fs group usb_fs-0 num 3
  200. 50000000.usb supply vusb_d not found, using dummy regulator
  201. 50000000.usb supply vusb_a not found, using dummy regulator
  202. dwc2 50000000.usb: EPs: 6, dedicated fifos, 512 entries in SPRAM
  203. dwc2 50000000.usb: DCFG=0x08200000, DCTL=0x00000002, DIEPMSK=0000000b
  204. dwc2 50000000.usb: GAHBCFG=0x00000000, GHWCFG1=0x00000000
  205. dwc2 50000000.usb: GRXFSIZ=0x000000a0, GNPTXFSIZ=0x004000a0
  206. dwc2 50000000.usb: DPTx[1] FSize=32, StAddr=0x000000e0
  207. dwc2 50000000.usb: DPTx[2] FSize=64, StAddr=0x00000100
  208. dwc2 50000000.usb: DPTx[3] FSize=512, StAddr=0x00000800
  209. dwc2 50000000.usb: DPTx[4] FSize=512, StAddr=0x00000a00
  210. dwc2 50000000.usb: DPTx[5] FSize=512, StAddr=0x00000c00
  211. dwc2 50000000.usb: ep0-in: EPCTL=0x00008000, SIZ=0x00000000, DMA=0x5abee5fb
  212. dwc2 50000000.usb: ep0-out: EPCTL=0x00008000, SIZ=0x00000000, DMA=0x5abee5fb
  213. dwc2 50000000.usb: ep1-in: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x5abee5fb
  214. dwc2 50000000.usb: ep1-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x5abee5fb
  215. dwc2 50000000.usb: ep2-in: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x5abee5fb
  216. dwc2 50000000.usb: ep2-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x5abee5fb
  217. dwc2 50000000.usb: ep3-in: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x5abee5fb
  218. dwc2 50000000.usb: ep3-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x5abee5fb
  219. dwc2 50000000.usb: ep4-in: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x5abee5fb
  220. dwc2 50000000.usb: ep4-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x5abee5fb
  221. dwc2 50000000.usb: ep5-in: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x5abee5fb
  222. dwc2 50000000.usb: ep5-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x5abee5fb
  223. dwc2 50000000.usb: DVBUSDIS=0x000017d7, DVBUSPULSE=000005b8
  224. usbcore: registered new interface driver cdc_acm
  225. cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
  226. usbcore: registered new interface driver uas
  227. usbcore: registered new interface driver usb-storage
  228. g_serial gadget: Gadget Serial v2.4
  229. g_serial gadget: g_serial ready
  230. dwc2 50000000.usb: bound driver g_serial
  231. i2c /dev entries driver
  232. stm32-pinctrl pin-controller: maps: function i2c_4 group i2c_4-0 num 3
  233. bmp085 3-0077: Successfully initialized bmp085!
  234. stm32f7-i2c 40006000.i2c: I2C Controller i2c-3 at 40006000,irq=58
  235. Driver for 1-wire Dallas network protocol.
  236. usbcore: registered new interface driver btusb
  237. stm32-pinctrl pin-controller: maps: function sdio group sdio-0 num 7
  238. mmci-pl18x 40012c00.sdi: Got CD GPIO
  239. mmci-pl18x 40012c00.sdi: mmc0: PL180 manf 80 rev4 at 0x40012c00 irq 37,0 (pio)
  240. stm32-dma 40026400.dma: stm32_dma_of_xlate: unable to get channel 3 - was already request
  241. ed
  242. mmci-pl18x 40012c00.sdi: DMA channels RX dma1chan3, TX dma1chan3
  243. stm32_gpio_to_irq: Event line 3 now points to fire interrupts from bank G
  244. stm32-pinctrl pin-controller: maps: function gpio group outs num 2
  245. hidraw: raw HID events driver (C) Jiri Kosina
  246. usbcore: registered new interface driver usbhid
  247. usbhid: USB HID core driver
  248. stm32-pinctrl pin-controller: maps: function adc1_in0_pin group adc1-0 num 2
  249. stm32f4-adc 40012000.adc: registered
  250. stm32-pinctrl pin-controller: maps: function sai_2 group sai_2-0 num 5
  251. stm32-dma 40026400.dma: stm32_dma_of_xlate: unable to get channel 4 - was already request
  252. ed
  253. stm32-asoc-card sound: failed to find codec platform device
  254. stm32-asoc-card: probe of sound failed with error -22
  255. NET: Registered protocol family 17
  256. can: controller area network core (rev 20120528 abi 9)
  257. NET: Registered protocol family 29
  258. can: raw protocol (rev 20120528)
  259. can: broadcast manager protocol (rev 20120528 t)
  260. can: netlink gateway (rev 20130117) max_hops=1
  261. Bluetooth: RFCOMM TTY layer initialized
  262. Bluetooth: RFCOMM socket layer initialized
  263. Bluetooth: RFCOMM ver 1.11
  264. hctosys: unable to open rtc device (rtc0)
  265. vmmc: disabling
  266. ALSA device list:
  267.   No soundcards found.
  268. Freeing unused kernel memory: 4000K (c0312000 - c06fa000)
  269. init started: BusyBox v1.24.2 (2018-11-22 20:35:58 EST)
  270. / # amixer: Mixer attach default error: No such file or directory
  271. stm32-dwmac 40028000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx

  273. / # free
  274.              total       used       free     shared    buffers     cached
  275. Mem:         60432       8140      52292          0          0       4792
  276. -/+ buffers/cache:       3348      57084
  277. / #
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47条回答
netawater
2019-12-16 21:52
htjgdw 发表于 2018-12-5 09:23
Linux早已支持no-MMU选项（适用于Cortex-M，AVR32等单片机），在编译kernel时选上这项就可以了。
没有MMU ...

没有mmu，没有虚拟内存这点影响大不大？

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