本帖最后由 ICZOOM 于 2018-12-20 15:28 编辑

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。

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

CPU  : STM32F7 (Cortex-M7)

Freqs: SYSCLK=216MHz,HCLK=216MHz,PCLK1=54MHz,PCLK2=108MHz

Board: STM32F750 Rev 1.0

DRAM:  64 MB

In:    serial

Out:   serial

Err:   serial

QSPI:  32 MB mapped at 0x90000000

Net:   miiphy_register done.

eth hw init done.

STM32_MAC

Hit any key to stop autoboot:  0

Booting from QSPI

## Booting kernel from Legacy Image at c0007fc0 ...

Image Name:   Linux-4.2.0

Image Type:   ARM Linux Multi-File Image (uncompressed)

Data Size:    7496295 Bytes =  7.1 MB

Load Address: c0008000

Entry Point:  c0008001

Contents:

Image 0: 7471388 Bytes =  7.1 MB

Image 1: 24895 Bytes = 24.3 kB

Verifying Checksum ... OK

## Flattened Device Tree from multi component Image at C0007FC0

Booting using the fdt at 0xc0728128

Loading Multi-File Image ... OK

OK

WARNING: legacy format multi component image overwritten

Loading Device Tree to c3ff6000, end c3fff13e ... OK

Starting kernel ...

Booting Linux on physical CPU 0x0

Linux version 4.2.0 (gcc version 4.4.1 (Sourcery G++ Lite 2010

q1-189) ) #90 Tue Dec 4 03:32:33 EST 2018

CPU: ARMv7-M [410fc271] revision 1 (ARMv7M), cr=00000000

CPU: WBA data cache, WBA instruction cache

Machine model: EmCraft Systems STM32F7-SOM board

Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 16256

Kernel command line: stm32_platform=stm32f7-disco console=ttyS0,115200 panic=10 ip=169.25

4.1.10:169.254.1.2:::stm32f7-disco:eth0:off

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

Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)

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

Memory: 56432K/65536K available (2523K kernel code, 181K rwdata, 588K rodata, 4000K init,

111K bss, 9104K reserved, 0K cma-reserved)

Virtual kernel memory layout:

vector  : 0x00000000 - 0x00001000   (   4 kB)

fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)

vmalloc : 0x00000000 - 0xffffffff   (4095 MB)

lowmem  : 0xc0000000 - 0xc4000000   (  64 MB)

.text : 0xc0008000 - 0xc0312000   (3112 kB)

.init : 0xc0312000 - 0xc06fa000   (4000 kB)

.data : 0xc06fa000 - 0xc07277c0   ( 182 kB)

.bss : 0xc072811c - 0xc0743e84   ( 112 kB)

NR_IRQS:16 nr_irqs:16 16

/interrupt-controller@40013c00: 24 External IRQs detected

clocksource: arm_system_timer: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 27651335

8 ns

ARM System timer initialized as clocksource

/soc/timer@40000000: STM32 clockevent driver initialized (32 bits)

sched_clock: 32 bits at 100 Hz, resolution 10000000ns, wraps every 21474836475000000ns

Calibrating delay loop... 427.62 BogoMIPS (lpj=2138112)

pid_max: default: 4096 minimum: 301

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

Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)

devtmpfs: initialized

clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275

0000 ns

pinctrl core: initialized pinctrl subsystem

NET: Registered protocol family 16

stm32-pinctrl pin-controller: nbanks = 11

stm32-pinctrl pin-controller: nfunctions = 20

stm32-pinctrl pin-controller: ngroups = 23

stm32-pinctrl pin-controller: GPIOA bank added.

stm32-pinctrl pin-controller: GPIOB bank added.

stm32-pinctrl pin-controller: GPIOC bank added.

stm32-pinctrl pin-controller: GPIOD bank added.

stm32-pinctrl pin-controller: GPIOE bank added.

stm32-pinctrl pin-controller: GPIOF bank added.

stm32-pinctrl pin-controller: GPIOG bank added.

stm32-pinctrl pin-controller: GPIOH bank added.

stm32-pinctrl pin-controller: GPIOI bank added.

stm32-pinctrl pin-controller: GPIOJ bank added.

stm32-pinctrl pin-controller: GPIOK bank added.

stm32-pinctrl pin-controller: Function[0         name:i2c_1,    groups:1]

stm32-pinctrl pin-controller: Function[1         name:i2c_2,    groups:1]

stm32-pinctrl pin-controller: Function[2         name:i2c_3,    groups:1]

stm32-pinctrl pin-controller: Function[3         name:mac,      groups:2]

stm32-pinctrl pin-controller: Function[4         name:sdio,     groups:1]

stm32-pinctrl pin-controller: Function[5         name:spi_2,    groups:1]

stm32-pinctrl pin-controller: Function[6         name:spi_4,    groups:1]

stm32-pinctrl pin-controller: Function[7         name:spi_5,    groups:1]

stm32-pinctrl pin-controller: Function[8         name:usart1,   groups:1]

stm32-pinctrl pin-controller: Function[9         name:usart6,   groups:1]

stm32-pinctrl pin-controller: Function[10        name:usart7,   groups:1]

stm32-pinctrl pin-controller: Function[11        name:usb_fs,   groups:1]

stm32-pinctrl pin-controller: Function[12        name:usb_hs,   groups:1]

stm32-pinctrl pin-controller: Function[13        name:can_1,    groups:1]

stm32-pinctrl pin-controller: Function[14        name:adc1_in0_pin,     groups:1]

stm32-pinctrl pin-controller: Function[15        name:dac_out2_pin,     groups:1]

stm32-pinctrl pin-controller: Function[16        name:ltdc,     groups:1]

stm32-pinctrl pin-controller: Function[17        name:sai_2,    groups:1]

stm32-pinctrl pin-controller: Function[18        name:i2c_4,    groups:1]

stm32-pinctrl pin-controller: Function[19        name:gpio,     groups:3]

stm32-dma 40026000.dma: STM32 DMA driver registered

stm32-dma 40026400.dma: STM32 DMA driver registered

SCSI subsystem initialized

usbcore: registered new interface driver usbfs

usbcore: registered new interface driver hub

usbcore: registered new device driver usb

soc:phy_hs supply vcc not found, using dummy regulator

soc:phy_fs supply vcc not found, using dummy regulator

pps_core: LinuxPPS API ver. 1 registered

pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti

Advanced Linux Sound Architecture Driver Initialized.

Bluetooth: Core ver 2.20

NET: Registered protocol family 31

Bluetooth: HCI device and connection manager initialized

Bluetooth: HCI socket layer initialized

Bluetooth: L2CAP socket layer initialized

Bluetooth: SCO socket layer initialized

clocksource: Switched to clocksource arm_system_timer

NET: Registered protocol family 2

TCP established hash table entries: 1024 (order: 0, 4096 bytes)

TCP bind hash table entries: 1024 (order: 0, 4096 bytes)

TCP: Hash tables configured (established 1024 bind 1024)

UDP hash table entries: 256 (order: 0, 4096 bytes)

UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)

NET: Registered protocol family 1

RPC: Registered named UNIX socket transport module.

RPC: Registered udp transport module.

RPC: Registered tcp transport module.

RPC: Registered tcp NFSv4.1 backchannel transport module.

Power Management for STM32

futex hash table entries: 16 (order: -5, 192 bytes)

jffs2: version 2.2. (NAND) (SUMMARY)  漏 2001-2006 Red Hat, Inc.

fuse init (API version 7.23)

Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)

io scheduler noop registered

io scheduler cfq registered (default)

stm32-pinctrl pin-controller: maps: function gpio group pwms num 2

stm32-pwm pwm0: basing on TIM3.1(x16)

stm32-pinctrl pin-controller: maps: function ltdc group ltdc-0 num 29

stm32_lcdfb 40016800.ltdc: fb0: fb device registered successfully

STM32 USART driver initialized

stm32-pinctrl pin-controller: maps: function usart1 group usart1-0 num 3

40011000.serial: ttyS0 at MMIO 0x40011000 (irq = 34, base_baud = 6750000) is a stm32-usar

t

console [ttyS0] enabled

stm32-pinctrl pin-controller: maps: function usart6 group usart6-0 num 3

40011400.serial: ttyS5 at MMIO 0x40011400 (irq = 35, base_baud = 6750000) is a stm32-usar

t

nbd: registered device at major 43

stm32-pinctrl pin-controller: maps: function dac_out2_pin group dac-0 num 2

stm32_dac 40007400.dac: dac1: no timer assigned, DMA functionality is not available

stm32_dac 40007400.dac: created 1 character devices with MAJOR 248

2 ofpart partitions found on MTD device physmap-stm-flash.0

Creating 2 MTD partitions on "physmap-stm-flash.0":

0x000000000000-0x000000020000 : "stm_flash_uboot"

0x000000040000-0x000000100000 : "stm_flash_unused"

stm32-pinctrl pin-controller: maps: function spi_5 group spi_5-0 num 4

stm32-spi 40015000.spi: SPI Controller 4 at 40015000,irq=38,hz=108000000

CAN device driver interface

stm32-pinctrl pin-controller: maps: function can_1 group can_1-0 num 3

stm32-can 40006400.can: device registered (reg=40006400, irq=31)

stm32-pinctrl pin-controller: maps: function mac group mac_rmii num 10

stmmac - user ID: 0x10, Synopsys ID: 0x35

Ring mode enabled

DMA HW capability register supported

Enhanced/Alternate descriptors

Enabled extended descriptors

RX Checksum Offload Engine supported (type 2)

TX Checksum insertion supported

Wake-Up On Lan supported

Enable RX Mitigation via HW Watchdog Timer

stm32-dwmac 40028000.ethernet eth0: No MDIO subnode found

libphy: stmmac: probed

eth0: PHY ID 0007c0f1 at 0 IRQ POLL (stmmac-0:00) active

PPP generic driver version 2.4.2

PPP BSD Compression module registered

PPP Deflate Compression module registered

usbcore: registered new interface driver rt2800usb

stm32-pinctrl pin-controller: maps: function usb_hs group usb_hs-0 num 3

dwc2 40040000.usb: DWC OTG Controller

dwc2 40040000.usb: new USB bus registered, assigned bus number 1

dwc2 40040000.usb: irq 56, io mem 0x00000000

usb usb1: New USB device found, idVendor=1d6b, idProduct=0002

usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1

usb usb1: Product: DWC OTG Controller

usb usb1: Manufacturer: Linux 4.2.0 dwc2_hsotg

usb usb1: SerialNumber: 40040000.usb

hub 1-0:1.0: USB hub found

hub 1-0:1.0: 1 port detected

stm32-pinctrl pin-controller: maps: function usb_fs group usb_fs-0 num 3

50000000.usb supply vusb_d not found, using dummy regulator

50000000.usb supply vusb_a not found, using dummy regulator

dwc2 50000000.usb: EPs: 6, dedicated fifos, 512 entries in SPRAM

dwc2 50000000.usb: DCFG=0x08200000, DCTL=0x00000002, DIEPMSK=0000000b

dwc2 50000000.usb: GAHBCFG=0x00000000, GHWCFG1=0x00000000

dwc2 50000000.usb: GRXFSIZ=0x000000a0, GNPTXFSIZ=0x004000a0

dwc2 50000000.usb: DPTx[1] FSize=32, StAddr=0x000000e0

dwc2 50000000.usb: DPTx[2] FSize=64, StAddr=0x00000100

dwc2 50000000.usb: DPTx[3] FSize=512, StAddr=0x00000800

dwc2 50000000.usb: DPTx[4] FSize=512, StAddr=0x00000a00

dwc2 50000000.usb: DPTx[5] FSize=512, StAddr=0x00000c00

dwc2 50000000.usb: ep0-in: EPCTL=0x00008000, SIZ=0x00000000, DMA=0x5abee5fb

dwc2 50000000.usb: ep0-out: EPCTL=0x00008000, SIZ=0x00000000, DMA=0x5abee5fb

dwc2 50000000.usb: ep1-in: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x5abee5fb

dwc2 50000000.usb: ep1-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x5abee5fb

dwc2 50000000.usb: ep2-in: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x5abee5fb

dwc2 50000000.usb: ep2-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x5abee5fb

dwc2 50000000.usb: ep3-in: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x5abee5fb

dwc2 50000000.usb: ep3-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x5abee5fb

dwc2 50000000.usb: ep4-in: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x5abee5fb

dwc2 50000000.usb: ep4-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x5abee5fb

dwc2 50000000.usb: ep5-in: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x5abee5fb

dwc2 50000000.usb: ep5-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x5abee5fb

dwc2 50000000.usb: DVBUSDIS=0x000017d7, DVBUSPULSE=000005b8

usbcore: registered new interface driver cdc_acm

cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters

usbcore: registered new interface driver uas

usbcore: registered new interface driver usb-storage

g_serial gadget: Gadget Serial v2.4

g_serial gadget: g_serial ready

dwc2 50000000.usb: bound driver g_serial

i2c /dev entries driver

stm32-pinctrl pin-controller: maps: function i2c_4 group i2c_4-0 num 3

bmp085 3-0077: Successfully initialized bmp085!

stm32f7-i2c 40006000.i2c: I2C Controller i2c-3 at 40006000,irq=58

Driver for 1-wire Dallas network protocol.

usbcore: registered new interface driver btusb

stm32-pinctrl pin-controller: maps: function sdio group sdio-0 num 7

mmci-pl18x 40012c00.sdi: Got CD GPIO

mmci-pl18x 40012c00.sdi: mmc0: PL180 manf 80 rev4 at 0x40012c00 irq 37,0 (pio)

stm32-dma 40026400.dma: stm32_dma_of_xlate: unable to get channel 3 - was already request

ed

mmci-pl18x 40012c00.sdi: DMA channels RX dma1chan3, TX dma1chan3

stm32_gpio_to_irq: Event line 3 now points to fire interrupts from bank G

stm32-pinctrl pin-controller: maps: function gpio group outs num 2

hidraw: raw HID events driver (C) Jiri Kosina

usbcore: registered new interface driver usbhid

usbhid: USB HID core driver

stm32-pinctrl pin-controller: maps: function adc1_in0_pin group adc1-0 num 2

stm32f4-adc 40012000.adc: registered

stm32-pinctrl pin-controller: maps: function sai_2 group sai_2-0 num 5

stm32-dma 40026400.dma: stm32_dma_of_xlate: unable to get channel 4 - was already request

ed

stm32-asoc-card sound: failed to find codec platform device

stm32-asoc-card: probe of sound failed with error -22

NET: Registered protocol family 17

can: controller area network core (rev 20120528 abi 9)

NET: Registered protocol family 29

can: raw protocol (rev 20120528)

can: broadcast manager protocol (rev 20120528 t)

can: netlink gateway (rev 20130117) max_hops=1

Bluetooth: RFCOMM TTY layer initialized

Bluetooth: RFCOMM socket layer initialized

Bluetooth: RFCOMM ver 1.11

hctosys: unable to open rtc device (rtc0)

vmmc: disabling

ALSA device list:

No soundcards found.

Freeing unused kernel memory: 4000K (c0312000 - c06fa000)

init started: BusyBox v1.24.2 (2018-11-22 20:35:58 EST)

/ # amixer: Mixer attach default error: No such file or directory

stm32-dwmac 40028000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx

/ # free

total       used       free     shared    buffers     cached

Mem:         60432       8140      52292          0          0       4792

-/+ buffers/cache:       3348      57084

/ #