板子不启动，无打印信息

szkalwa

楼主请参考下我以前做海思DVR产品时，UBOOT或UART起不来的原因：
, F, q$ a& X; r/ Q* y1、DDR芯片是否在软件支持范围内？型号太多，有的软件可能还要调整对DDR的支持;或DDR芯片没有焊好；
7 o9 T- n, F) K% }9 {2、NAND FLASH品牌有的支持有的不支持，搞得无法启动！
ARM的BGA芯片连接NAND这一块，BGA 引脚有虚焊导致；
3、复位芯片有问题
; n' O7 r( B4 m' d4、再有就是网络芯片后缀型号不一样，也会导致无法启动（这一点有些纳闷，一直想不明白，这刚启动怎么会和网络挂上关系？）
5、电源；（这个相对好解决，量一量就知道）
" @& h+ N; e" q4 I2 ?! m/ Q: l6、最后就是PCB设计问题了，但如果DDR3不那么完整性，也不至于会不启动，顶多是能启动了，但一会就会死机的

klend

會不會是DDR的時鐘匹配電阻有問題？是差分100歐阻抗控制的。這裏兩個電阻是100歐。

klend

换了nandflash后和加焊DDR后有两种状态，但是板子都没有启动成功，串口有打印。
以下是状态1的log:
SoC preloader 1.0.0.r1422.lzma (Wed Nov 13 14:32:57 CST 2013)
3 Z. r, ^+ }4 e# `" H! u0 bII: Stack @ 0x9fc1fd18 (parameter 736B)
+ L- }* ~' a5 E4 _& q' {8 S& OII: Console... OK
Setting DTR
/ n  o% k# a: l3 \II: DRAM is set by software calibration... PASSED

& w2 m7 Z8 [7 iDDRKODL(0xb800021c):0x00000410
) B! `: O, o2 XMCR (0xb8001000):0x22041de0, 0x21220000, 0x54433830, 0x0404030f
DTR2(0xb8001010):0x0630d000
2 [1 F; y# o3 wPHY Registers(0xb8001500):
. T* t! @$ J7 ]6 N/ [3 H. I0xb8001500:0x80000010, 0x0000007f, 0xa1a00000, 0xfdffffff
0xb8001510:0x00140a00, 0x00180c00, 0x00140a00, 0x00180c00
! F* z: w/ F  g: E0xb8001520:0x001a0d00, 0x00140a00, 0x00160b00, 0x00120900
0xb8001530:0x001c0e00, 0x001e0f00, 0x001c0e00, 0x001e0f00
0xb8001540:0x001e0f00, 0x001a0d00, 0x001c0e00, 0x001a0d00
0xb8001550:0x00100800, 0x00140a00, 0x00100800, 0x00140a00
0xb8001560:0x00160b00, 0x00120900, 0x00140a00, 0x00100800
0xb8001570:0x001a0d00, 0x001a0d00, 0x00180c00, 0x001c0e00
0xb8001580:0x001c0e00, 0x00180c00, 0x001a0d00, 0x00180c00
0xb8001590:0x00000000, 0x5110dbd9, 0xa9a95656, 0x5352b5b5
: I, D  p  D5 i+ E8 X7 Z0xb80015a0:0x4145dcdc, 0x00000000, 0x00000000, 0x00000000
) m/ [5 U- }. U0 X0 E. |9 @II: PLL is set by SW... OK
II: Flash... OK
II: Stack @ 0x801ffff8
II: Starting U-Boot...
9 _1 y7 C* X5 ]II: Inflating U-Boot (0x80000040 -> 0x87c00000)...
' j# @5 Q( B% I- E/ UEE: decompress failed: 1
0 V0 s0 O1 I1 L* H以下是状态2板了log:
8 ]8 ~% Y0 C" k0 P/ l2 b/ jSoC preloader 1.0.0.r1422.lzma (Wed Nov 13 14:32:57 CST 2013)
% |% \$ e& h4 oII: Stack @ 0x9fc1fd18 (parameter 736B)
II: Console... OK
/ v4 F/ n; l/ Z6 nSetting DTR
$ N' s' V$ U$ {( l8 S4 ^II: DRAM is set by software calibration... PASSED
% a* V3 F- a  y6 \' t
2 y9 w! a: e% {. U4 o& D# kDDRKODL(0xb800021c):0x00000410
MCR (0xb8001000):0x22041de0, 0x21220000, 0x54433830, 0x0404030f
DTR2(0xb8001010):0x0630d000
" @! e+ l* H: X+ q1 VPHY Registers(0xb8001500):
0xb8001500:0x80000010, 0x0000007f, 0xa1a00000, 0xffffffff
9 ^! y* Y0 b7 r' I* @; a# H0xb8001510:0x00120900, 0x00140a00, 0x00120900, 0x00160b00
0xb8001520:0x00140a00, 0x00120900, 0x00140a00, 0x00100800
( W2 M1 y: Z. k; b0xb8001530:0x00180c00, 0x001a0d00, 0x00180c00, 0x001a0d00
' t9 a1 Q- t0 j" |5 u! o0xb8001540:0x001a0d00, 0x00180c00, 0x001a0d00, 0x00180c00
1 `, B) F' K% K; I  z0xb8001550:0x00120900, 0x00160b00, 0x00120900, 0x00140a00
0xb8001560:0x00140a00, 0x00140a00, 0x00120900, 0x00100800
7 g: J8 J/ G; S6 O1 b. A0xb8001570:0x001c0e00, 0x001c0e00, 0x00180c00, 0x001c0e00
3 S: ^& E: n# \- F0xb8001580:0x001a0d00, 0x00180c00, 0x001a0d00, 0x00180c00
4 }4 e" }& ^; b# x9 x/ \& C0xb8001590:0x00000000, 0x5adad2d2, 0x24207574, 0x5a5adada
- A, {* B7 c4 l. G. ^: x0xb80015a0:0x8d0da7a5, 0x00000000, 0x00000000, 0x00000000
0 _6 D: |* i; C5 ~/ lII: PLL is set by SW... OK
! i2 i: m! u  r; n) N4 `  ^/ W' X4 FII: Flash... OK
II: Stack @ 0x801ffff8
7 `' [( z' k( Z& |6 c% M! p  l7 KII: Starting U-Boot...
II: Inflating U-Boot (0x80000040 -> 0x87c00000)... OK
II: Starting U-Boot...
* z4 m. {+ O6 |, q. _6 p! K1 M2 o

0 t" E! w6 `* g+ d& L  T( gU-Boot 2011.12.NA (Nov 13 2013 - 14:33:03)

& C8 G9 p' B. U$ l: MBoard: LUNA
: o* Q* U1 V( L0 s2 s: W6 n; pCPU: RLX5281 600.00 MHz, DSP: RLX5181 500.00 MHz, , DDR3 300MHz, LX:200.00 MHz
DRAM:  128 MB
# J+ o  K. o+ H0 ~3 `enter nand_init
board_nand_init()
% q6 [* R4 S3 Y+ W# h6 d# kparameters at 0x00001212
9 ]1 l, P( b/ j2 jparameters.read at 0x9fc00550
+ e5 j0 r7 z$ V$ z) Bparameters.write at 0x9fc03308
7 A9 f2 _1 P  N6 b6 {parameters.bbt at 0x9fc1feac
5 k" p4 F) n% c9 buboot- read nand flash info from SRAM
flash_info list
+ ~2 b9 [7 \5 `8 _0 Bflash_info.num_block : 1024
6 \; a# T- P) e  T9 j9 Y4 o% Aflash_info.num_page_per_block : 64
flash_info.page_per_chunk : 1
, ^  T1 |2 R/ _( v* K, ^1 jflash_info.bbi_dma_offset : 2000
flash_info.bbi_raw_offset : 2048
flash_info.bbi_swap_offset : 23
flash_info.page_size : 2048
chunk size : 2048
flash_info.addr_cycles : 4
pblr_start_block : 1
num_pblr_block : 3
parameters.curr_ver is a
2 P8 l  X9 |% L7 }8 |parameters.plr_num_chunk is 29
parameters.blr_num_chunk is 45
  k- g; T7 Y6 D! Rparameters.end_pblr_block is 4
rtk_nand_read_id id_chain is 9580f192
nand: Manufacture ID=0x92, Chip ID=0xf1, 3thID=0x80, 4thID=0x95, 5thID=0x40, 6thID=0xc0
6 B' x4 u2 M7 j, v3 }this->pagemask is 65535
! I3 {1 n) e+ N7 K' o/ othis->chip_shift is 27
parameters.bbt_valid is 1
create_logical_skip_bbt
  ~5 |8 ^2 Y7 K/ u$ [4 Y' klast skip_block 1024
nand.c nand_init_chip mtd size is 877bfeac
128 MiB
) U' }8 u2 Q( ?: C4 sLoading 131072B env. variables from offset 0xc0000
Unknown command 'sf' - try 'help'
; N1 j* ^/ q: `Net:   LUNA GMAC
* X% ~) f' m! s$ q# @* z; N7 oWarning: eth device name has a space!
6 g" U7 w6 [+ l( f: {: D* G
Hit space key to stop autoboot:  0

0 |- o$ z: {$ f- f8 X$ T
$ o% t$ z. _$ `ACTIVE IMAGE 0 (tryactive=2 sw_commit=0)
9 G' B* A1 M+ J' C$ Y& U( w$ O7 a
2 W1 T9 H8 a, M- c+ v# o0 O( v; v9 zreset pcie0
, T/ B- L$ o4 F9 T( @: w, y5 |# yreset pcie1
2 U  D8 Z* K& X3 G( k4 W4 V
NAND read: device 0 offset 0x100000, size 0x380000
' a5 z# G  f6 A; |0 z 3670016 bytes read: OK
+ i" ^( u8 O% b3 O* G/ k% ^## Booting kernel from Legacy Image at 82000000 ...
" Q' N  j( I) p  W& _0 f3 l   Image Name:   Linux-2.6.30
   Created:      2013-11-14   2:56:37 UTC
0 K& e8 w% J3 C& o. _   Image Type:   MIPS Linux Kernel Image (lzma compressed)
   Data Size:    1791872 Bytes = 1.7 MB
  X! h% c+ i( ?4 t' [$ {   Load Address: 80000000
3 y3 @, G" D) t1 t  k   Entry Point:  80000000
/ u" z; I, F6 c6 y   Verifying Checksum ... Bad Data CRC
ERROR: can't get kernel image!
5VT-2510#
1 {' R% v8 W/ B- g( [! V0 k请问大家这是什么问题呢？

klend

szkalwa 发表于 2013-12-2 17:04
0 X: I) Y3 B* C2 u4 x+ ?# i/ F/ [楼主请参考下我以前做海思DVR产品时，UBOOT或UART起不来的原因：
5 m# j3 a0 g& T# l1、DDR芯片是否在软件支持范围内？型号太 ...

# c) D/ M# m' P0 K; o! w我发串口打印信息了，请大家帮忙看看。

klend

bluskly 发表于 2013-11-29 10:23
串口没打印信息？ 串口电平对不？ TXD和RXD没有接反？ 地线有没有接？ 驱动有吧？
唉。。
2 I, k; s! ~( E不知道。。。

怎么还木有人回复

jesseliu

DDR 没有贴好吧！

jesseliu

看看是不是那一组重要的电压点纹波比较大？？

xhk_hlju

确定电源电压纹波是否正常
7 j. B$ h* v/ C* U9 TCPU DDR焊接能保证么
这是前提
还有就是DDR跑300MHz有没设置啊  DLL用打开么
! X" `2 Q( _) t& N" y' X# A有没Kernel么 那不是？？

klend

xhk_hlju 发表于 2013-12-5 15:43
确定电源电压纹波是否正常
CPU DDR焊接能保证么
这是前提

SoC preloader 1.0.0.r1480.lzma (Tue Dec  3 09:50:34 CST 2013)
II: Stack @ 0x9fc1fd18 (parameter 736B)
II: Console... OK
Setting DTR
# x& ?  d$ O6 q" i, sII: DRAM is set by software calibration...
' i) S2 ^# S( @/ N6 T6 H) tII: small max_w_len=7, bit_loc=12
. x% Y' q" }. A/ [* M% B) IPASSED

4 n3 d2 j# u6 K- k5 X8 y( RDDRKODL(0xb800021c):0x00000410
MCR (0xb8001000):0x22041de0, 0x21220000, 0x54433830, 0x0404030f
DTR2(0xb8001010):0x0630d000
PHY Registers(0xb8001500):
6 `8 _+ x# c9 c0xb8001500:0x80000030, 0x0000007f, 0xa1a00000, 0xffffffff
* p' i, a, ]- P. z/ _0xb8001510:0x00140a00, 0x00160b00, 0x00140a00, 0x00180c00
+ n- K. U2 N7 l! @1 g0xb8001520:0x001a0d00, 0x00160b00, 0x00160b00, 0x00140a00
0xb8001530:0x001a0d00, 0x001c0e00, 0x001a0d00, 0x001c0e00
) ]/ u) l, a: Q8 m- i  |0xb8001540:0x001e0f00, 0x001c0e00, 0x001e0f00, 0x001c0e00
+ \8 `! T  `* Z( p" J0xb8001550:0x00120900, 0x00140a00, 0x00120900, 0x00160b00
0xb8001560:0x00180c00, 0x00140a00, 0x00140a00, 0x00100800
- ]5 ^0 x3 e# z9 e# w; b# M0xb8001570:0x001a0d00, 0x001c0e00, 0x001a0d00, 0x001c0e00
  Y& ?7 x1 v# N0xb8001580:0x001c0e00, 0x001a0d00, 0x001c0e00, 0x00180c00
0xb8001590:0x00000000, 0x5ada9a92, 0x2929a5a5, 0x5a5adada
( w9 o& H9 V9 u8 p, u0xb80015a0:0x4f4f87c3, 0x00000000, 0x00000000, 0x00000000
% O5 o/ ^! Q/ RII: PLL is set by SW... OK
II: Flash... OK
, ?) F$ O* A% x# HII: Stack @ 0x801ffff8
II: Starting U-Boot...
II: Inflating U-Boot (0x80000040 -> 0x87c00000)... OK
II: Starting U-Boot...
7 d* C; e8 m) X% U1 Z/ w

U-Boot 2011.12.NA (Dec 03 2013 - 09:50:44)

4 `/ u9 }: J4 cBoard: LUNA
CPU: RLX5281 600.00 MHz, DSP: RLX5181 500.00 MHz, , DDR3 300MHz, LX:200.00 MHz
DRAM:  128 MB
2 ]; [8 o5 x7 t  V' @, Qenter nand_init
board_nand_init()
: M) S/ T$ i; ~, v. T, Hparameters at 0x00001212
. C$ [5 t8 Y. S( ]parameters.read at 0x9fc00550
; V+ m  o+ j6 u2 z; R* Z* Cparameters.write at 0x9fc03298
parameters.bbt at 0x9fc1feac
uboot- read nand flash info from SRAM
flash_info list
5 x' H! [- P( E: Q1 A5 K2 N8 vflash_info.num_block : 1024
flash_info.num_page_per_block : 64
/ t) T2 k4 j' Y, k# Uflash_info.page_per_chunk : 1
8 f% ?0 [) Z3 @% Nflash_info.bbi_dma_offset : 2000
: w( x* j4 \2 P3 {flash_info.bbi_raw_offset : 2048
; X: v8 t7 L: Y7 i  e( tflash_info.bbi_swap_offset : 23
/ D2 |5 U: N8 Gflash_info.page_size : 2048
+ U! t0 f( Z# b  cchunk size : 2048
1 e1 I% @& X4 [6 P! jflash_info.addr_cycles : 4
pblr_start_block : 1
, `: t) {( |3 O1 Enum_pblr_block : 3
parameters.curr_ver is a
) X/ t/ @/ V  G: k' M) Y- {parameters.plr_num_chunk is 29
parameters.blr_num_chunk is 45
parameters.end_pblr_block is 4
rtk_nand_read_id id_chain is 9580f192
nand: Manufacture ID=0x92, Chip ID=0xf1, 3thID=0x80, 4thID=0x95, 5thID=0x40, 6thID=0xc0
! w- u3 O6 p* d3 Othis->pagemask is 65535
( X* n8 B6 x: c, |4 T  ]this->chip_shift is 27
parameters.bbt_valid is 1
create_logical_skip_bbt
) k2 g# r: t# f  z: b# j( W* H$ z0 rlast skip_block 1024
nand.c nand_init_chip mtd size is 877bfeac
128 MiB
Loading 131072B env. variables from offset 0xc0000
Net:   5VT_GMAC
Hit space key to stop autoboot:  0
: U; j5 t' a9 f6 t7 M" U
. b/ O% h! C7 h/ x) E: ]. p
) J% h9 D; s) C4 TACTIVE IMAGE 0 (tryactive=2 sw_commit=0)
$ |( f7 d& B+ ?& ^2 Y2 w3 j5 e
reset pcie0
/ t' S: o/ q! z9 \- }- L, Nreset pcie1

NAND read: device 0 offset 0x100000, size 0x380000
3670016 bytes read: OK
1 u) N7 l& `9 |9 Z) B## Booting kernel from Legacy Image at 82000000 ...
   Image Name:   Linux-2.6.30
   Created:      2013-12-04  11:05:44 UTC
# ^1 K( I7 o% Y" c   Image Type:   MIPS Linux Kernel Image (lzma compressed)
   Data Size:    1788887 Bytes = 1.7 MB
   Load Address: 80000000
   Entry Point:  80000000
   Verifying Checksum ... OK
! |, i0 \; P5 I7 p   Uncompressing Kernel Image ...
是不是内核不启动？软件还是硬件问题？

szkalwa

ERROR: can't get kernel image!
" }# |: m! y$ g) g: Q  t内核没起来。
' w3 q$ L- P. m8 L可能还是和DDR这边有关系

klend

szkalwa 发表于 2013-12-5 17:33
ERROR: can't get kernel image!
内核没起来。
% L+ ^5 j3 ]9 J: V可能还是和DDR这边有关系

; i. j2 E. k3 ?( D: J/ B) w) H是pcb布线影响到DDR的频录跑不高还是DDR的时序有问题？怎么确认呢？怎么解决？

抓个妞去溜溜

根据经验，如果一切电气特性正常没有打印，那么接下来就是CUP和Flash的问题了（当然要先确定软件是否烧对）。如果有打印信息后就要看DDR有没有跑起来，DDR有没有跑起来可以看打印信息，这方面可以询问厂商DDR没有起来的经典打印信息，如果涉及到kernel的问题，这就需要软件配合了，现在即使同一型号的CPU可能因为版本不同就会导致kernel问题。

wesnly

是不是芯片肚子上的接地焊盘没焊？

646571959

检查检查各路电压吧

klend

wesnly 发表于 2013-12-6 14:28
' ~/ p& F' S$ k# t9 s3 r  g是不是芯片肚子上的接地焊盘没焊？

是没焊，IC温度很高，焊了以后温度稍低一点，但是还是不能启动成功。