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本帖最后由 stone-363407 于 2018-12-7 16:42 编辑 代码地址： http://github.com/huayuguo/uboot-stm32h743_eth U-Boot 2018.09-rc2-gc16d658 (Dec 06 2018 - 16:00:30 +0800) Model: STMicroelectronics STM32H743i-EVAL board DRAM: 32 MiB MMC: STM32 SDMMC2: 0 In: serial@40011000 Out: serial@40011000 Err: serial@40011000 Net: Warning: ethernet@40028000 (eth0) using random MAC address - fe:f8:94:5f:5e:26 eth0: ethernet@40028000 Hit SPACE in 3 seconds to stop autoboot. switch to partitions #0, OK mmc0 is current device Scanning mmc 0:1... U-Boot > setenv gatewayip 192.168.10.1;setenv ipaddr 192.168.10.22;setenv netmask 255.255.255.0;setenv ethaddr 1a:5a:38:ef:38:d8; U-Boot > env set bootargs "root=/dev/ram console=ttyS0,115200 " U-Boot > tftpboot 61000000 192.168.10.25:uImage;tftpboot 61300000 192.168.10.25:stm32h743i-eval.dtb; ethernet@40028000 Waiting for PHY auto negotiation to complete. done Using ethernet@40028000 device TFTP from server 192.168.10.25; our IP address is 192.168.10.22 Filename 'uImage'. Load address: 0x61000000 Loading: ################################################################# ################################################################# ########## 1.4 MiB/s done Bytes transferred = 2048568 (1f4238 hex) ethernet@40028000 Waiting for PHY auto negotiation to complete. done Using ethernet@40028000 device TFTP from server 192.168.10.25; our IP address is 192.168.10.22 Filename 'stm32h743i-eval.dtb'. Load address: 0x61300000 Loading: # 999 KiB/s done Bytes transferred = 5115 (13fb hex) U-Boot > bootm 61000000 - 61300000 ## Booting kernel from Legacy Image at 61000000 ... Image Name: linux Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 2048504 Bytes = 2 MiB Load Address: 61000000 Entry Point: 61000000 Verifying Checksum ... OK ## Flattened Device Tree blob at 61300000 Booting using the fdt blob at 0x61300000 Loading Kernel Image ... OK Using Device Tree in place at 61300000, end 613043fa Starting kernel ... [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 4.15.2-gb37c1e299-dirty (xiao@xd) (gcc version 6.3.1 20170620 (15:6.3.1+svn253039-1build1)) #134 PREEMPT Fri Dec 7 13:45:02 CST 2018 [ 0.000000] CPU: ARMv7-M [411fc271] revision 1 (ARMv7M), cr=00000000 [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, PIPT instruction cache [ 0.000000] OF: fdt: Machine model: STMicroelectronics STM32H743i-EVAL board [ 0.000000] Reserved memory: created DMA memory pool at 0x61000000, size 2 MiB [ 0.000000] OF: reserved mem: initialized node linux,dma, compatible id shared-dma-pool [ 0.000000] Ignoring RAM after 0x61000000, memory at 0x61200000 ignored [ 0.000000] Using ARMv7 PMSA Compliant MPU. Region independence: No, Used 2 of 16 regions [ 0.000000] On node 0 totalpages: 4096 [ 0.000000] Normal zone: 32 pages used for memmap [ 0.000000] Normal zone: 0 pages reserved [ 0.000000] Normal zone: 4096 pages, LIFO batch:0 [ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768 [ 0.000000] pcpu-alloc: [0] 0 [ 0.000000] Built 1 zonelists, mobility grouping off. Total pages: 4064 [ 0.000000] Kernel command line: root=/dev/ram console=ttyS0,115200 [ 0.000000] Dentry cache hash table entries: 2048 (order: 1, 8192 bytes) [ 0.000000] Inode-cache hash table entries: 1024 (order: 0, 4096 bytes) [ 0.000000] Memory: 13080K/16384K available (1596K kernel code, 154K rwdata, 496K rodata, 632K init, 130K bss, 3304K 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 : 0x60000000 - 0x61000000 ( 16 MB) [ 0.000000] .text : 0x(ptrval) - 0x(ptrval) (1597 kB) [ 0.000000] .init : 0x(ptrval) - 0x(ptrval) ( 632 kB) [ 0.000000] .data : 0x(ptrval) - 0x(ptrval) ( 155 kB) [ 0.000000] .bss : 0x(ptrval) - 0x(ptrval) ( 131 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] clocksource: arm_system_timer: mask: 0xffffff max_cycles: 0xffffff, max_idle_ns: 18664651 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... 795.44 BogoMIPS (lpj=3977216) [ 0.100000] pid_max: default: 4096 minimum: 301 [ 0.100000] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes) [ 0.100000] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes) [ 0.100000] Hierarchical SRCU implementation. [ 0.100000] devtmpfs: initialized [ 0.110000] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.110000] pinctrl core: initialized pinctrl subsystem [ 0.110000] DMA: default coherent area is set [ 0.110000] random: get_random_u32 called from bucket_table_alloc+0xc9/0xf4 with crng_init=0 [ 0.110000] NET: Registered protocol family 16 [ 0.120000] cpuidle: using governor ladder [ 0.120000] cpuidle: using governor menu [ 0.130000] stm32h743-pinctrl soc:pin-controller: GPIOA bank added [ 0.130000] stm32h743-pinctrl soc:pin-controller: GPIOB bank added [ 0.130000] stm32h743-pinctrl soc:pin-controller: GPIOC bank added [ 0.130000] stm32h743-pinctrl soc:pin-controller: GPIOD bank added [ 0.130000] stm32h743-pinctrl soc:pin-controller: GPIOE bank added [ 0.130000] stm32h743-pinctrl soc:pin-controller: GPIOF bank added [ 0.140000] stm32h743-pinctrl soc:pin-controller: GPIOG bank added [ 0.140000] stm32h743-pinctrl soc:pin-controller: GPIOH bank added [ 0.140000] stm32h743-pinctrl soc:pin-controller: GPIOI bank added [ 0.140000] stm32h743-pinctrl soc:pin-controller: GPIOJ bank added [ 0.140000] stm32h743-pinctrl soc:pin-controller: GPIOK bank added [ 0.140000] stm32h743-pinctrl soc:pin-controller: Pinctrl STM32 initialized [ 0.160000] pps_core: LinuxPPS API ver. 1 registered [ 0.160000] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it> [ 0.160000] PTP clock support registered [ 0.160000] clocksource: Switched to clocksource arm_system_timer [ 0.170000] NET: Registered protocol family 2 [ 0.170000] TCP established hash table entries: 1024 (order: 0, 4096 bytes) [ 0.170000] TCP bind hash table entries: 1024 (order: 0, 4096 bytes) [ 0.170000] TCP: Hash tables configured (established 1024 bind 1024) [ 0.170000] UDP hash table entries: 256 (order: 0, 4096 bytes) [ 0.170000] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes) [ 0.170000] NET: Registered protocol family 1 [ 0.360000] workingset: timestamp_bits=30 max_order=12 bucket_order=0 [ 0.380000] random: fast init done [ 0.400000] io scheduler noop registered [ 0.400000] io scheduler deadline registered [ 0.400000] io scheduler cfq registered (default) [ 0.400000] io scheduler mq-deadline registered [ 0.400000] io scheduler kyber registered [ 0.400000] STM32 USART driver initialized [ 0.400000] 40011000.serial: ttyS0 at MMIO 0x40011000 (irq = 17, base_baud = 12500000) is a stm32-usart [ 0.850000] console [ttyS0] enabled [ 0.850000] stm32-usart 40011000.serial: rx dma alloc failed [ 0.860000] stm32-usart 40011000.serial: interrupt mode used for rx (no dma) [ 0.870000] stm32-usart 40011000.serial: tx dma alloc failed [ 0.870000] stm32-usart 40011000.serial: interrupt mode used for tx (no dma) [ 0.880000] libphy: Fixed MDIO Bus: probed [ 0.890000] tun: Universal TUN/TAP device driver, 1.6 [ 0.890000] stm32-dwmac 40028000.ethernet: Found phy-handle subnode [ 0.900000] stm32-dwmac 40028000.ethernet: Found MDIO subnode [ 0.910000] stm32-dwmac 40028000.ethernet: use snps,dwmac-4.00.. [ 0.910000] stm32-dwmac 40028000.ethernet: PTP uses main clock [ 0.910000] stm32-dwmac 40028000.ethernet: no reset control found [ 0.930000] stmmac - user ID: 0x30, Synopsys ID: 0x41 [ 0.930000] stm32-dwmac 40028000.ethernet: DMA HW capability register supported [ 0.930000] stm32-dwmac 40028000.ethernet: RX Checksum Offload Engine supported [ 0.950000] stm32-dwmac 40028000.ethernet: TX Checksum insertion supported [ 0.950000] stm32-dwmac 40028000.ethernet: Wake-Up On Lan supported [ 0.950000] stm32-dwmac 40028000.ethernet: TSO supported [ 0.970000] stm32-dwmac 40028000.ethernet: Enable RX Mitigation via HW Watchdog Timer [ 0.970000] stmmac_mdio_reset : reset gpio direction num=28 [ 1.080000] libphy: stmmac: probed [ 1.090000] stm32-dwmac 40028000.ethernet: register the MDIO bus [ 1.100000] u32 classifier [ 1.100000] Initializing XFRM netlink socket [ 1.110000] NET: Registered protocol family 17 [ 1.110000] NET: Registered protocol family 15 [ 1.110000] 8021q: 802.1Q VLAN Support v1.8 [ 1.120000] Key type dns_resolver registered [ 1.130000] Freeing unused kernel memory: 632K [ 1.140000] This architecture does not have kernel memory protection. can't run '/sbin/swapon': No such file or directory Initializing random number generator... done. Jan 1 00:00:01 login[59]: root login on 'console' ~ # |
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cpu 400Mhz sdram 100mhz cas=2
测试软件:iperf3
系统跑了25个线程测试速度如下。。。。没有原子裸奔的那个快............
65.8 Mbits/sec
~ # cat /proc/cpuinfo
processor : 0
model name : ARMv7-M rev 1 (v7ml)
BogoMIPS : 795.44
Features : half thumb fastmult edsp idivt
CPU implementer : 0x41
CPU architecture: 7M
CPU variant : 0x1
CPU part : 0xc27
CPU revision : 1
Hardware : STM32 (Device Tree Support)
Revision : 0000
Serial : 0000000000000000
~ # iperf3 -c 192.168.10.26
Connecting to host 192.168.10.26, port 5201
[ 4] local 192.168.10.22 port 41328 connected to 192.168.10.26 port 5201
[ ID] Interval Transfer Bandwidth Retr Cwnd
[ 4] 0.00-1.01 sec 7.57 MBytes 63.0 Mbits/sec 0 173 KBytes
[ 4] 1.01-2.03 sec 8.22 MBytes 67.3 Mbits/sec 0 181 KBytes
[ 4] 2.03-3.15 sec 8.75 MBytes 66.0 Mbits/sec 0 181 KBytes
[ 4] 3.15-4.04 sec 6.90 MBytes 65.0 Mbits/sec 0 181 KBytes
[ 4] 4.04-5.15 sec 8.70 MBytes 65.4 Mbits/sec 0 181 KBytes
[ 4] 5.15-6.10 sec 7.40 MBytes 65.5 Mbits/sec 0 181 KBytes
[ 4] 6.10-7.01 sec 7.37 MBytes 67.7 Mbits/sec 0 191 KBytes
[ 4] 7.01-8.16 sec 8.95 MBytes 65.6 Mbits/sec 0 191 KBytes
[ 4] 8.16-9.02 sec 6.86 MBytes 66.5 Mbits/sec 0 191 KBytes
[ 4] 9.02-10.13 sec 8.73 MBytes 65.9 Mbits/sec 0 191 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth Retr
[ 4] 0.00-10.13 sec 79.4 MBytes 65.8 Mbits/sec 0 sender
[ 4] 0.00-10.13 sec 79.4 MBytes 65.8 Mbits/sec receiver
iperf Done.
~ # ps
PID USER VSZ STAT COMMAND
1 root 400 S init
2 root 0 SW [kthreadd]
4 root 0 IW< [kworker/0:0H]
6 root 0 IW< [mm_percpu_wq]
7 root 0 SW [ksoftirqd/0]
8 root 0 IW [rcu_preempt]
9 root 0 IW [rcu_sched]
10 root 0 IW [rcu_bh]
11 root 0 SW [kdevtmpfs]
12 root 0 SW [rcu_tasks_kthre]
14 root 0 IW< [writeback]
15 root 0 IW< [crypto]
16 root 0 IW< [kblockd]
17 root 0 IW< [watchdogd]
18 root 0 SW [kswapd0]
41 root 0 SW [irq/17-40011000]
59 root 420 S -sh
60 root 0 IW [kworker/u2:1]
61 root 0 IW [kworker/u2:2]
64 root 0 IW [kworker/0:2]
65 root 0 IW [kworker/0:3]
71 root 0 IW [kworker/0:0]
75 root 396 R ps
楼主，您好，看了您的贴子，手头正好有一块stm32f746-disco 的板子，按照您的思路，移植了uboot2016.09，移植了uboot eth驱动，因为没有移植MMC驱动，就打算把linux内核加载在SDRAM上，再从SDRAM启动内核；使用的是linux4.19.24默认的stm32配置，但是现在一直卡在“Starting kernel ...”，内核应该是没有起来；不知道您调试过程中是否遇到这个问题。附上打印的信息：
U-Boot 2016.09-g83ec55b-dirty (Feb 22 2019 - 18:30:58 +0800)
DRAM: 8 MiB
WARNING: Caches not enabled
Flash: 1 MiB
Using default environment
In: serial_stm32x7
Out: serial_stm32x7
Err: serial_stm32x7
Net:
stm32 eth probe start
stm32 eth probe end
stm32_read_rom_hwaddr
Warning: eth_stm32_eth using MAC address from ROM
eth0: eth_stm32_eth
stm32_write_hwaddr
Hit SPACE in 3 seconds to stop autoboot.
U-Boot > set ipaddr 10.0.0.2
U-Boot > set serverip 10.0.0.6
U-Boot > tftp c0400000 uImage.bin
stm32_eth_stop start
stm32_eth_stop end
stm32_eth_start start
stm32_eth_start end
Using eth_stm32_eth device
TFTP from server 10.0.0.6; our IP address is 10.0.0.2
Filename 'uImage.bin'.
Load address: 0xc0400000
Loading: #################################################################
###########################
2 MiB/s
done
Bytes transferred = 1337888 (146a20 hex)
stm32_eth_stop start
stm32_eth_stop end
U-Boot > tftp c0600000 discodtb.bin
stm32_eth_stop start
stm32_eth_stop end
stm32_eth_start start
stm32_eth_start end
Using eth_stm32_eth device
TFTP from server 10.0.0.6; our IP address is 10.0.0.2
Filename 'discodtb.bin'.
Load address: 0xc0600000
Loading: ##
966.8 KiB/s
done
Bytes transferred = 14858 (3a0a hex)
stm32_eth_stop start
stm32_eth_stop end
U-Boot > bootm c0400000 - c0600000
## Booting kernel from Legacy Image at c0400000 ...
Image Name: Linux-4.19.24
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 1337824 Bytes = 1.3 MiB
Load Address: c0008000
Entry Point: c0008000
Verifying Checksum ... OK
## Flattened Device Tree blob at c0600000
Booting using the fdt blob at 0xc0600000
Loading Kernel Image ... OK
Loading Device Tree to c07c7000, end c07cda09 ... OK
Starting kernel ...
U-Boot 2018.09-rc2-g36b739b (Nov 25 2018 - 10:45:48 +0800)
Model: STMicroelectronics STM32H743i-EVAL board
DRAM: 32 MiB
MMC: STM32 SDMMC2: 0
In: serial@40011000
Out: serial@40011000
Err: serial@40011000
Net:
Warning: ethernet@40028000 (eth0) using random MAC address - b6:1d:0e:15:99:e3
eth0: ethernet@40028000
Hit SPACE in 3 seconds to stop autoboot.
Card did not respond to voltage select!
U-Boot > tftpboot 0x60001000 192.168.1.103:u-boot.bin
ethernet@40028000 Waiting for PHY auto negotiation to complete... done
*** ERROR: `ipaddr' not set
U-Boot > set ipaddr 192.168.1.101;set serverip 192.168.1.1;set ethaddr d6:54:97:9f:9a:90;
U-Boot > tftpboot 0x60001000 192.168.1.103:u-boot.bin
ethernet@40028000 Waiting for PHY auto negotiation to complete... done
Using ethernet@40028000 device
TFTP from server 192.168.1.103; our IP address is 192.168.1.101
Filename 'u-boot.bin'.
Load address: 0x60001000
Loading: ##################
1.8 MiB/s
done
Bytes transferred = 257336 (3ed38 hex)
U-Boot > cmp.b 60001000 8000000 3ed38
Total of 257336 byte(s) were the same
接下来看看kernel 咋能。
说下eth dma 最大的注意事项，就是cache dma ram 一致性， 卡了好个晚上，对于这个一致性，没有多少经验，希望大家给点经验指导下。
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:1...
U-Boot > fatload mmc 0 60008000 uImage;fatload mmc 0 60800000 stm32h743i-eval.dtb
1926672 bytes read in 19 ms (96.7 MiB/s)
9370 bytes read in 2 ms (4.5 MiB/s)
U-Boot >
请查看串口定义部分 高版本内核串口的定义不一样 ttys0 具体看下驱动代码
看下这个如果你用的内核版本是这样
git\linux-4.19.9\drivers\tty\serial\stm32-usart.h
#define _SERIAL_NAME "ttySTM"
把这个 U-Boot > env set bootargs "root=/dev/ram console=ttyS0,115200 "
改成这个
env set bootargs "root=/dev/ram console=ttySTM,115200 "
这个STM工程师比较那个，我也被坑了，各种分析，内存BUFF分析 等等 我就像骂一句 mmp
谢楼主啊
楼主您好，linux内核确实是你说的那样，但是改了uboot的bootargs后，仍然不能在启动内核后打印信息。。。stm的工程师看来是只管写不管有没有用啊。。。