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I cann't initialize OR/BR registers in cpu_init.c?

U-Boot-Users wang cheng 2 participants 2 messages Oct 13, 2003

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wang cheng

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#0 lore raw

hello !
all
I'm porting u-boot-0.4.0 to my WindRiver MDP PRO board now,some
addressing specifications are listed below.I choose the

fads823 as the model.I have vision ICE ii & vision CLICK to program flash and debug the code.
I compile the code in the vmware linux environment.After "make
myboard_config" and "make",I copy the u-boot(ELF) to the

vision CLICK path in windows environment?then Convert to .BIN file, program to flash,run,use the hyperterminal as the

console.
Now in the cpu_init.c ,I masked all the OR/BR initialization
clause,for when I released them there's nothing displayed on

the hyperterminal ;but when masked them ,the program can run to the "=>"(after main_loop();)with the vision ICE II and to the

relocate_code()(in the board_init_f();)without the visionICE II ,some register value are listed below in the vision CLICK BKM

mode.

**1.why I cann't initialize the OR/BR registers in the cpu_init.c **2.how to modify the dram initialization to pass the relocate_code() 3.can you tell me something details about the BCSR register in the FADS823 model.
4.are there any better model for WindRiver MDPRRO board ?

Any suggests are very appreciated!

specifications:
Addressing:
Total address range 4GB (on and off board)
Flash Memory 1.0MB on board

			16MB SIMM (4MB Std.)

SRAM Memory 2MB (512K Std.)
DRAM Memory 32MB SIMM (16MB Std.)
EEPROM 8K

Quoted 1 line

BKM>sc

****************** SIU *****************
IMMR xxxxxxxx FF000000 SIUMCR FF000000
00610000
SYPCR FF000004 FFFFFF88 SWSR FF00000E
0000
SIPEND FF000010 00000000 SIMASK FF000014
00400000
SIEL FF000018 00000000 SIVEC FF00001C
3C000000
TESR FF000020 00000000 SDCR FF000030
00004001

****************** UPM_A *****************
UPMA_T0 FF00017C 0FF3FC00 UPMA_T1 FF00017C
1FF7FC07
UPMA_T2 FF00017C FFFFFFFF UPMA_T3 FF00017C
FFFFFFFF
......

****************** UPM_B *****************
UPMB_T0 FF00017C 0FF3CC24 UPMB_T1 FF00017C
0FF3CC04
UPMB_T2 FF00017C 0CF3CC04 UPMB_T3 FF00017C
00F3CC04
UPMB_T4 FF00017C 00F3CC00 UPMB_T5 FF00017C
37F7CC47
UPMB_T6 FF00017C FFFFFFFF UPMB_T7 FF00017C
FFFFFFFF
U .....

****************** MEMC *****************
BR0 FF000100 FFF00801 OR0 FF000104
FFF00760
BR1 FF000108 00000000 OR1 FF00010C
00000000
BR2 FF000110 000000C1 OR2 FF000114
FF000800
BR3 FF000118 00000000 OR3 FF00011C
00000000
BR4 FF000120 03000081 OR4 FF000124
FBF80010
BR5 FF000128 10000401 OR5 FF00012C
FFC00760
BR6 FF000130 00000000 OR6 FF000134
00000000
BR7 FF000138 00000000 OR7 FF00013C
00000000
MAR FF000164 00000000 MCR FF000168
0000001B
MAMR FF000170 0C120111 MBMR FF000174
2FB20111
MSTAT FF000178 0000 MPTPR FF00017A
0800
MDR FF00017C FF0C0027

****************** CLOCKS *****************
SCCRK FF000380 55CCAA33 SCCR FF000280
01800000
PLPRCRK FF000384 55CCAA33 PLPRCR FF000284
00400000
RSRK FF000388 55CCAA33 RSR FF000288
D0000000

****************** SI *****************
SIMODE FF000AE0 00000000 SIGMR FF000AE4
00
SISTR FF000AE6 00 SICMR FF000AE7
00
SICR FF000AEC 00000000 SIRP FF000AF0
00000000

#1 lore raw

Hello,

Quoted 2 lines · in message <[email protected]> you wrote:

I'm porting u-boot-0.4.0 to my WindRiver MDP PRO board now,some

You should be using the CVS (top of tree) version for any new ports. Ot at least a more recent snapshot (u-boot-0.4.8) from the FTP server.

Quoted 2 lines

addressing specifications are listed below.I choose the fads823 as the model.I have vision ICE ii & vision CLICK to program

Bad choice. The FADS board contains many board specific things which you will not find on other hardware.

Quoted 2 lines

Now in the cpu_init.c ,I masked all the OR/BR initialization
clause,for when I released them there's nothing displayed on

This means your board configuration and/or your debug environment is wrong.

Quoted 1 line

**1.why I cann't initialize the OR/BR registers in the cpu_init.c

Maybe because some initialization is already being done (badly) by your vision* debuggers. Make sure that you perform only MINIMAL initialization in the debugger (only disable the watchdog; do NOT touch the memory controller at all).

Quoted 1 line

**2.how to modify the dram initialization to pass the relocate_code()

Read the specifications provided bythe chip manufacturer, and
implement a matching initialization sequence.

Quoted 2 lines

3.can you tell me something details about the BCSR register in the FADS823 model.

Don't care about it. This is different hardware than yours, so any information about it will not apply to your board anyway.

Quoted 1 line

4.are there any better model for WindRiver MDPRRO board ?

Maybe. Probably. But I don't know the MDPRRO ...

Best regards,

Wolfgang Denk

Signature · 4 lines
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
"There are things that are so serious that you can  only  joke  about
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