* [U-Boot-Users] the question about u-boot for 1GB DDR-1?
@ 2007-11-21 3:25 郭劲
0 siblings, 0 replies; 3+ messages in thread
From: 郭劲 @ 2007-11-21 3:25 UTC (permalink / raw)
To: u-boot
Hi,Denk,
I resolved the 1GB DDR problem, the reason is that I did not define the
CONFIG_VERY_BIG_RAM. The u-boot-1.2.0 will visit the address above
0x10000000(256MB) if this CONFIG_VERY_BIG_RAM is not defined,then the u-boot-1.2.0
is dead.
Thank you very much.
>From: Wolfgang Denk <wd@denx.de>
>Reply-To:
>To: <guojin02@tsinghua.org.cn>
>Subject: Re: [U-Boot-Users] the question about u-boot for 1GB DDR-1?
>Date:Tue, 20 Nov 2007 09:59:55 +0100
>
>In message <395543860.30931@tsinghua.org.cn> you wrote:
>> I plug in 1GB DDR-1 on DIMM-184 slot, my cpu is MPC8360, the u-boot just only
>> visit the address from 0x00000000 to 0x10000000(256MB), it can not visit the
>> address above 0x10000000, could you tell me why? and how to reslove this
problem?
>
>This has been recently dicussed here, please see the archive.
>
>What exactly is your problem? I think 256MB should be sufficient for
>anything you want to do in a boot loader (and Linux should then have
>access to the full memory size).
>
>
>Best regards,
>
>Wolfgang Denk
>
>--
>DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
>HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
>Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
>Q: What do you get when you cross an ethernet with an income statement?
>A: A local area networth.
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* [U-Boot-Users] the question about u-boot for 1GB DDR-1?
@ 2007-11-20 7:31 郭劲
2007-11-20 8:59 ` Wolfgang Denk
0 siblings, 1 reply; 3+ messages in thread
From: 郭劲 @ 2007-11-20 7:31 UTC (permalink / raw)
To: u-boot
I plug in 1GB DDR-1 on DIMM-184 slot, my cpu is MPC8360, the u-boot just only
visit the address from 0x00000000 to 0x10000000(256MB), it can not visit the
address above 0x10000000, could you tell me why? and how to reslove this problem?
U-Boot 1.2.0 (Nov 19 2007 - 20:55:34) MPC83XX
CPU: e300c1, MPC8360E, Rev: 20 at 528 MHz, CSB: 264 MHz
Board: Freescale MPC8360EMDS
I2C: ready
DRAM:
DIMM type:
SPD size: 128
EEPROM size: 256
Memory type: 7
Row addr: 13
Column addr: 11
# of rows: 2
Row density: 128
# of banks: 4
Data width: 64
Chip width: 8
Refresh rate: 82
CAS latencies: 18
Write latencies: 02
tRP: 60
tRCD: 60
cs0_bnds = 0x0000001f
cs0_config = 0x80000103
cs1_bnds = 0x0020003f
cs1_config = 0x80000103
DDR:bar=0x00000000
DDR:ar=0x8000001d
DDR: caslat SPD bit is 4
DDR:Module maximum data rate is: 400Mhz
DDR:Effective data rate is: 266Mhz
DDR:The MSB 1 of CAS Latency is: 4
DDR: effective data rate is 266 MHz
DDR: caslat SPD bit is 4, controller field is 0x5
DDR:timing_cfg_1=0x26252727
DDR:timing_cfg_2=0x00004841
DDR DIMM: data bus width is 64 bit without ECC
DDR:sdram_mode=0x00000032
DDR: sdram_mode2 = 0x00000000
DDR:sdram_interval=0x04060100
DDR:sdram_clk_cntl=0x02000000
DDRC ECC mode: OFF
DDR:sdram_cfg=0xc2008000
SDRAM on Local Bus: 64 MB
DDR RAM: 1024 MB
DDR test phase 1:
^ permalink raw reply [flat|nested] 3+ messages in thread* [U-Boot-Users] the question about u-boot for 1GB DDR-1?
2007-11-20 7:31 郭劲
@ 2007-11-20 8:59 ` Wolfgang Denk
0 siblings, 0 replies; 3+ messages in thread
From: Wolfgang Denk @ 2007-11-20 8:59 UTC (permalink / raw)
To: u-boot
In message <395543860.30931@tsinghua.org.cn> you wrote:
> I plug in 1GB DDR-1 on DIMM-184 slot, my cpu is MPC8360, the u-boot just only
> visit the address from 0x00000000 to 0x10000000(256MB), it can not visit the
> address above 0x10000000, could you tell me why? and how to reslove this problem?
This has been recently dicussed here, please see the archive.
What exactly is your problem? I think 256MB should be sufficient for
anything you want to do in a boot loader (and Linux should then have
access to the full memory size).
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Q: What do you get when you cross an ethernet with an income statement?
A: A local area networth.
^ permalink raw reply [flat|nested] 3+ messages in thread
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