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本帖最后由 stone-363407 于 2018-12-7 16:42 编辑 ( P/ m( h( }1 L9 \ 7 T. ~/ |% _! p2 y; n% K% L9 q0 Z 代码地址： http://github.com/huayuguo/uboot-stm32h743_eth ( h- P/ s; Z* _ U-Boot 2018.09-rc2-gc16d658 (Dec 06 2018 - 16:00:30 +0800) & J8 r9 d1 j( } Model: STMicroelectronics STM32H743i-EVAL board DRAM: 32 MiB MMC: STM32 SDMMC2: 0 In: serial@40011000 Out: serial@40011000/ U, y; q& `5 D# P z3 X4 c Err: serial@40011000 Net: 0 s) h$ }5 C& s t. [ Warning: ethernet@40028000 (eth0) using random MAC address - fe:f8:94:5f:5e:268 \. b: h$ n5 p2 o; x P eth0: ethernet@40028000' X0 E U) ^1 ~6 Q3 @ Hit SPACE in 3 seconds to stop autoboot.+ C. K1 p) p* q6 G0 B switch to partitions #0, OK; `! ~4 b% A/ X# a$ z mmc0 is current device Scanning mmc 0:1...% g+ G8 x( ~, n" _# \' i 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;' ~4 i6 m, O' a8 l3 B. A: g2 ^ 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; , B) M" \: k$ M" r& i ethernet@40028000 Waiting for PHY auto negotiation to complete. done% M+ G. T% M" V/ V Using ethernet@40028000 device5 b% l5 b: F, h0 Z* a$ n6 U TFTP from server 192.168.10.25; our IP address is 192.168.10.22 Filename 'uImage'.: R5 v* Z# V! ^: p Load address: 0x610000007 X v. z V9 \4 _ Loading: ################################################################# #################################################################6 n5 B6 [; q) y ##########, K( s5 |: L* { 1.4 MiB/s done1 e9 `1 z' |+ o- B, y4 ` Bytes transferred = 2048568 (1f4238 hex)( e R& T4 J- U8 l5 n ethernet@40028000 Waiting for PHY auto negotiation to complete. done, t- \ O) P! `$ E/ e Using ethernet@40028000 device+ w, e( N: @" Y& {1 i1 ] TFTP from server 192.168.10.25; our IP address is 192.168.10.22 Filename 'stm32h743i-eval.dtb'.' o9 q$ j3 ]- f Load address: 0x61300000# U6 T0 q# |" R7 E4 \7 Q0 s Loading: # 999 KiB/s0 q4 ~$ M5 b: m' [3 c: z done Bytes transferred = 5115 (13fb hex) U-Boot > bootm 61000000 - 61300000 ## Booting kernel from Legacy Image at 61000000 ... Image Name: linux+ x+ W: A, c( a Image Type: ARM Linux Kernel Image (uncompressed)) N/ t5 B: D0 L M Data Size: 2048504 Bytes = 2 MiB6 s( _* J$ d9 L& `# b: Z" Z2 T Load Address: 61000000 Entry Point: 610000000 z. r `# O! o% v' p% f Verifying Checksum ... OK' @ l+ f0 ~8 l E! Y ## Flattened Device Tree blob at 61300000! k8 q, j- h6 @0 _! p4 N) x Booting using the fdt blob at 0x61300000 Loading Kernel Image ... OK Using Device Tree in place at 61300000, end 613043fa) a& K' Q0 X, a, v8 K 5 F! O+ Y Y2 v' A Starting kernel ...9 ?7 ^ Z/ v9 \2 ^5 e T 5 J# W b1 s5 H" H# n7 r [ 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 20183 P3 m% K4 Y0 Z8 e; b/ W c [ 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( f1 t3 j5 r: b3 y [ 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% O; L0 b2 j; ~$ Y" K, H [ 0.000000] On node 0 totalpages: 4096 [ 0.000000] Normal zone: 32 pages used for memmap1 P A4 z/ D* Q) ~6 E [ 0.000000] Normal zone: 0 pages reserved [ 0.000000] Normal zone: 4096 pages, LIFO batch:0, s8 U4 K! Y' B2 \. Y2 I9 } [ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*327680 A: ^4 }4 y) Q/ H# m0 n7 [! A [ 0.000000] pcpu-alloc: [0] 0 3 d% n. I2 M1 q+ y% E [ 0.000000] Built 1 zonelists, mobility grouping off. Total pages: 4064 [ 0.000000] Kernel command line: root=/dev/ram console=ttyS0,115200 3 G% Z, U. Q) M7 Y0 L$ V [ 0.000000] Dentry cache hash table entries: 2048 (order: 1, 8192 bytes)$ r, M; m1 T# u2 \ [ 0.000000] Inode-cache hash table entries: 1024 (order: 0, 4096 bytes)" i: {, i. ` m5 t7 @ [ 0.000000] Memory: 13080K/16384K available (1596K kernel code, 154K rwdata, 496K rodata, 632K init, 130K bss, 3304K reserved, 0K cma-reserved), U( u0 H6 Y8 m- | [ 0.000000] Virtual kernel memory layout: [ 0.000000] vector : 0x00000000 - 0x00001000 ( 4 kB)" l9 N6 d" S5 H! Q [ 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)1 R" z# b' s7 Y- c3 b [ 0.000000] .bss : 0x(ptrval) - 0x(ptrval) ( 131 kB) [ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=19 a3 M% W+ a% Y3 P* K( a/ h' P& A P [ 0.000000] Preemptible hierarchical RCU implementation. [ 0.000000] Tasks RCU enabled.4 ~+ h0 ~, K1 t' G2 s [ 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 ns1 D C* b# M* R/ r8 }+ N) ^ [ 0.000000] ARM System timer initialized as clocksource9 A3 u p2 C0 F7 O) j* i [ 0.000000] /soc/timer@40000c00: STM32 clockevent driver initialized (32 bits)0 J% w: A' B5 i1 q1 V4 C P [ 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! I" Q N4 M% \6 D( e [ 0.100000] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes) [ 0.100000] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)) O8 n/ {2 ?- h [ 0.100000] Hierarchical SRCU implementation. [ 0.100000] devtmpfs: initialized7 }! s# z: K7 Y! I' p# s1 n! ~ [ 0.110000] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns3 ^' ] ?1 B4 Q& q, r' E6 ? [ 0.110000] pinctrl core: initialized pinctrl subsystem( T, ?& T" d6 m1 k' y% I1 Y [ 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$ J8 z& J' k& k$ X" ?# `0 u [ 0.110000] NET: Registered protocol family 16 [ 0.120000] cpuidle: using governor ladder& d/ ~- x$ F5 D7 `! D [ 0.120000] cpuidle: using governor menu% ~4 B- r& a; C( y [ 0.130000] stm32h743-pinctrl soc:pin-controller: GPIOA bank added [ 0.130000] stm32h743-pinctrl soc:pin-controller: GPIOB bank added1 }* _ [' z' F( B+ L9 S [ 0.130000] stm32h743-pinctrl soc:pin-controller: GPIOC bank added( `/ W+ I: _8 K* W5 _ [ 0.130000] stm32h743-pinctrl soc:pin-controller: GPIOD bank added& w) O' o4 @' U8 z* i9 P [ 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! N* d6 T! x% [" z! }5 q0 v [ 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. j1 z/ q! p( D [ 0.140000] stm32h743-pinctrl soc:pin-controller: Pinctrl STM32 initialized [ 0.160000] pps_core: LinuxPPS API ver. 1 registered/ M% Q; _9 H o* { E5 S8 [' g [ 0.160000] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>7 M2 o$ C7 D" B" M [ 0.160000] PTP clock support registered [ 0.160000] clocksource: Switched to clocksource arm_system_timer; t6 A. o: @$ r6 a; G( T [ 0.170000] NET: Registered protocol family 2) q7 C: t8 J I5 N* V( ` [ 0.170000] TCP established hash table entries: 1024 (order: 0, 4096 bytes)+ o" a$ }6 r, j% U* C+ K [ 0.170000] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)/ r- Q1 |- L) X [ 0.170000] TCP: Hash tables configured (established 1024 bind 1024)- n$ X/ Q9 Z/ i% [5 B [ 0.170000] UDP hash table entries: 256 (order: 0, 4096 bytes) [ 0.170000] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)' |1 C% ?: E) O4 Z$ ?# |( C [ 0.170000] NET: Registered protocol family 1 [ 0.360000] workingset: timestamp_bits=30 max_order=12 bucket_order=0; r& h5 o( W. t4 k [ 0.380000] random: fast init done4 }" ]1 h% W# K [ 0.400000] io scheduler noop registered [ 0.400000] io scheduler deadline registered" O( s$ Q' O. C1 R2 q [ 0.400000] io scheduler cfq registered (default)) }. u+ T" [* `$ {( N8 G' d [ 0.400000] io scheduler mq-deadline registered! [# N$ R4 ~* i+ o. I l [ 0.400000] io scheduler kyber registered. v9 Z0 c. j6 e+ B [ 0.400000] STM32 USART driver initialized3 w3 t/ B( c4 N; w/ T3 ~4 r- { [ 0.400000] 40011000.serial: ttyS0 at MMIO 0x40011000 (irq = 17, base_baud = 12500000) is a stm32-usart# I( A9 A5 v7 {3 w [ 0.850000] console [ttyS0] enabled) D6 E3 j3 G- \7 R8 p8 \ [ 0.850000] stm32-usart 40011000.serial: rx dma alloc failed( ?5 o- W# j& r- h; d$ x [ 0.860000] stm32-usart 40011000.serial: interrupt mode used for rx (no dma). b8 F/ l; C% `9 X' W [ 0.870000] stm32-usart 40011000.serial: tx dma alloc failed G+ s1 z" @9 _! g [ 0.870000] stm32-usart 40011000.serial: interrupt mode used for tx (no dma)1 H2 W: L* G! E$ O# i! u2 V$ e [ 0.880000] libphy: Fixed MDIO Bus: probed [ 0.890000] tun: Universal TUN/TAP device driver, 1.6! {+ ~) N- p( Z( c [ 0.890000] stm32-dwmac 40028000.ethernet: Found phy-handle subnode( ^5 O! p* g+ R [ 0.900000] stm32-dwmac 40028000.ethernet: Found MDIO subnode; @7 y/ y. z4 Z( e. _ _ [ 0.910000] stm32-dwmac 40028000.ethernet: use snps,dwmac-4.00..* Z3 r3 |/ x& N* u [ 0.910000] stm32-dwmac 40028000.ethernet: PTP uses main clock" z0 h7 V8 K# k7 l% _: _5 @ [ 0.910000] stm32-dwmac 40028000.ethernet: no reset control found1 Q' ^8 K/ s, P6 z1 @, D$ b# P [ 0.930000] stmmac - user ID: 0x30, Synopsys ID: 0x415 `5 b0 B- ~. @4 @/ w) j: | [ 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) |) v) U% a. q9 U [ 1.090000] stm32-dwmac 40028000.ethernet: register the MDIO bus3 S7 l- F( y7 Q [ 1.100000] u32 classifier% k% P; w; o: N; Y+ G [ 1.100000] Initializing XFRM netlink socket [ 1.110000] NET: Registered protocol family 17 [ 1.110000] NET: Registered protocol family 150 {$ M% F4 G$ P, i [ 1.110000] 8021q: 802.1Q VLAN Support v1.8 [ 1.120000] Key type dns_resolver registered/ J! q2 j X) B/ r. p [ 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 ! n; s/ @6 T! F4 C8 G
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- ~9 @- j- U7 J& W/ o# A2 V
~ # cat /proc/cpuinfo
processor : 0' E' q2 z8 L, b( `
model name : ARMv7-M rev 1 (v7ml)5 N5 z% {( i3 B
BogoMIPS : 795.44
Features : half thumb fastmult edsp idivt ( G- w3 Z; S4 T
CPU implementer : 0x41& R: T' i* L! T$ Z k) J
CPU architecture: 7M$ w+ k3 c. U1 S4 m9 X
CPU variant : 0x1
CPU part : 0xc273 h; ?8 z4 w: v* L/ h
CPU revision : 19 O1 ]$ g* a5 J* A8 U! ?
2 t% a" n4 I4 {, x( Z/ x4 \4 E6 `
Hardware : STM32 (Device Tree Support)
Revision : 0000
Serial : 0000000000000000& m* x; R3 l7 o: I$ a* P1 r
~ # iperf3 -c 192.168.10.26
Connecting to host 192.168.10.26, port 52019 L2 N4 m" t: K# ?+ L8 C
[ 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 # I: @3 @8 g* B( ]8 p- j2 e
[ 4] 1.01-2.03 sec 8.22 MBytes 67.3 Mbits/sec 0 181 KBytes n: F4 Z* O- x6 A- x! _4 [! R7 b; y
[ 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 / l3 J; [1 S; l/ y# {5 o! Y
[ 4] 5.15-6.10 sec 7.40 MBytes 65.5 Mbits/sec 0 181 KBytes + {6 h z! `8 k w9 f0 v/ h
[ 4] 6.10-7.01 sec 7.37 MBytes 67.7 Mbits/sec 0 191 KBytes s2 K" z9 r3 E: w, a
[ 4] 7.01-8.16 sec 8.95 MBytes 65.6 Mbits/sec 0 191 KBytes 1 n: U. C& t0 O4 X8 [; H& V
[ 4] 8.16-9.02 sec 6.86 MBytes 66.5 Mbits/sec 0 191 KBytes . O) O+ ~& R( g
[ 4] 9.02-10.13 sec 8.73 MBytes 65.9 Mbits/sec 0 191 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -2 j, |: L3 f9 H* P, R+ u% v0 i2 r& m' A
[ ID] Interval Transfer Bandwidth Retr8 l4 f" W6 |4 q" {9 ?8 L" a B
[ 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& B1 |; z0 W3 `9 C. b3 ]: v
. p. B0 Z. C- w# W
iperf Done.! d: V: L; V1 H& F
~ # ps! x0 F- d# l0 P/ Z
PID USER VSZ STAT COMMAND
1 root 400 S init
2 root 0 SW [kthreadd]
4 root 0 IW< [kworker/0:0H]3 z0 X S: o$ L( ?8 F; {
6 root 0 IW< [mm_percpu_wq]
7 root 0 SW [ksoftirqd/0]7 u" \$ C/ b$ W8 t0 e
8 root 0 IW [rcu_preempt]
9 root 0 IW [rcu_sched]
10 root 0 IW [rcu_bh]8 t0 s S. |" Q
11 root 0 SW [kdevtmpfs]+ C8 T1 M4 [9 y4 `# L
12 root 0 SW [rcu_tasks_kthre]
14 root 0 IW< [writeback]
15 root 0 IW< [crypto]3 F' o! {; u- U1 W6 J, Q
16 root 0 IW< [kblockd]
17 root 0 IW< [watchdogd]0 w# k' v/ H4 B/ _ t
18 root 0 SW [kswapd0]% h, c6 w6 f9 S" F
41 root 0 SW [irq/17-40011000]- L- j9 Q& ]+ f$ o6 q0 @% n
59 root 420 S -sh
60 root 0 IW [kworker/u2:1]0 p. [# j$ H- j) @8 O- F
61 root 0 IW [kworker/u2:2]( [# F6 H1 T V* E: a/ H
64 root 0 IW [kworker/0:2]0 b; M' F: i$ h/ ~
65 root 0 IW [kworker/0:3]
71 root 0 IW [kworker/0:0]7 h% T& M" L8 q& S
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：
/ d1 d- o( C j
U-Boot 2016.09-g83ec55b-dirty (Feb 22 2019 - 18:30:58 +0800)
: L3 _0 N/ y* [
DRAM: 8 MiB
WARNING: Caches not enabled
Flash: 1 MiB0 e" U3 s+ A9 t/ i6 h* B8 y
Using default environment
, O8 C8 z' J8 \. ?3 q
In: serial_stm32x7: u% t6 N! d+ d/ } t h
Out: serial_stm32x7( C( X! N, y7 r+ C. C( d0 n
Err: serial_stm32x73 A$ g$ m9 V& s* Z6 ^" [
Net: ! t$ s4 d8 V) ]6 q8 e
stm32 eth probe start9 d3 d8 z5 P) r/ J. b
stm32 eth probe end
stm32_read_rom_hwaddr
' z* Y8 o1 ^0 q8 ]5 g! T
Warning: eth_stm32_eth using MAC address from ROM
eth0: eth_stm32_eth
stm32_write_hwaddr
' H" q8 Q$ h T. @5 z! W, a
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.bin8 O4 [6 q$ L9 S
stm32_eth_stop start4 G1 V" Q# N% C% E
stm32_eth_stop end
stm32_eth_start start
stm32_eth_start end
Using eth_stm32_eth device" L6 E; R7 J1 Q& q# S8 ?0 Q9 w
TFTP from server 10.0.0.6; our IP address is 10.0.0.25 _/ w7 Y4 s/ d. `$ W
Filename 'uImage.bin'.7 N7 _" `$ n& {9 I. b) Q
Load address: 0xc0400000
Loading: #################################################################
###########################
2 MiB/s+ Z6 E9 S! o' W
done
Bytes transferred = 1337888 (146a20 hex)8 K3 r5 C3 m5 A3 g4 y7 g4 |9 A
stm32_eth_stop start. V, y) m7 ]9 H. x0 q
stm32_eth_stop end
U-Boot > tftp c0600000 discodtb.bin
# }2 I9 [9 E$ d' _' M @
stm32_eth_stop start
stm32_eth_stop end
: s, Q6 f7 q5 C# x& H
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" J$ b5 w; b6 L+ c4 [
Filename 'discodtb.bin'.
Load address: 0xc0600000- F6 H" [* A' W
Loading: ##$ T0 j& ~0 C" g" F
966.8 KiB/s
done' _) e8 M2 r7 }
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 ...3 q# o- D1 S0 P0 g" a$ @0 g
Image Name: Linux-4.19.242 N: y/ J; e9 m) J4 \+ K* ^5 N
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 1337824 Bytes = 1.3 MiB
Load Address: c0008000
Entry Point: c0008000
Verifying Checksum ... OK. C+ u/ Z a2 {7 l y8 j) W
## Flattened Device Tree blob at c06000005 ^5 x$ r1 x8 F5 ]
Booting using the fdt blob at 0xc0600000. [2 R; X: x2 a
Loading Kernel Image ... OK
Loading Device Tree to c07c7000, end c07cda09 ... OK
( ~9 e7 J; c) P
Starting kernel ...
. B5 G4 G3 }3 ~0 H
U-Boot 2018.09-rc2-g36b739b (Nov 25 2018 - 10:45:48 +0800): L5 ^9 z2 T, f4 J$ r9 l: b4 ^
Model: STMicroelectronics STM32H743i-EVAL board
DRAM: 32 MiB
MMC: STM32 SDMMC2: 07 o& E C# ?, Z @* J# s
In: serial@40011000
Out: serial@40011000$ _, N4 J* Z) j8 e# c: C
Err: serial@400110006 n Z: c( P2 t! H8 }* T, s
Net:
Warning: ethernet@40028000 (eth0) using random MAC address - b6:1d:0e:15:99:e3& i5 F. M+ y/ a1 n+ @
eth0: ethernet@400280003 H, B( G6 K j: A0 E: Z3 n. ^8 p1 O
Hit SPACE in 3 seconds to stop autoboot.6 P& T+ O3 |: }( `* q$ S
Card did not respond to voltage select!3 Z) o5 I+ I2 C7 m E* H3 o" e
U-Boot > tftpboot 0x60001000 192.168.1.103:u-boot.bin
ethernet@40028000 Waiting for PHY auto negotiation to complete... done( e7 A' g6 v+ _" H1 \3 r
*** 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; * d, ?$ a0 u) a4 t; [* b8 @
U-Boot > tftpboot 0x60001000 192.168.1.103:u-boot.bin
ethernet@40028000 Waiting for PHY auto negotiation to complete... done
Using ethernet@40028000 device5 w/ R+ }" N Q8 K. i9 e& h' S1 Y
TFTP from server 192.168.1.103; our IP address is 192.168.1.101- F% U; L4 ?4 I, _
Filename 'u-boot.bin'.* B4 y" j8 S. O, }0 m& D
Load address: 0x60001000
Loading: ##################
1.8 MiB/s
done! }& g% [+ j [. x
Bytes transferred = 257336 (3ed38 hex)1 B" X5 ^2 ^ I9 Z
U-Boot > cmp.b 60001000 8000000 3ed38
Total of 257336 byte(s) were the same
接下来看看kernel 咋能。6 g% c& H9 {0 o3 r
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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' V2 e& O. z& P: I
mmc0 is current device
Scanning mmc 0:1...1 g( ^' a4 ^! H( P. @% p% C8 M
U-Boot > fatload mmc 0 60008000 uImage;fatload mmc 0 60800000 stm32h743i-eval.dtb 7 K8 W4 e! V4 Y
1926672 bytes read in 19 ms (96.7 MiB/s)- E# G9 P# ?! R% X
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& t+ @) v4 z; ~& I8 Y
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#define _SERIAL_NAME "ttySTM"$ i7 p. Y% n# Q' Q% S6 c) N5 U, L/ v
把这个 U-Boot > env set bootargs "root=/dev/ram console=ttyS0,115200 " ! ^# J' i, l7 x0 {$ ^1 e. a5 I
改成这个* B7 M t" t8 X+ I* `# H
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env set bootargs "root=/dev/ram console=ttySTM,115200 "
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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。。。