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flash regards

U-Boot Rajeesh.R 3 participants 3 messages Jun 22, 2010

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Rajeesh.R

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#0 lore raw

Hi,

I am work with AT91rm9200dk board
AT49BV642DT flash is using for keep uboot .
In uboot which file and where the is the flash mode selection ie botom
boot or top boot flash selection is specifying. Or how can I configure
this flash in Uboot .
please help me ...

With Thanks
Rajeesh.R

#1 lore raw

I think the flash is at 0x10000000. Do you have a Jlink or SAM-ICE with you. If yes you can put the uboot.bin that is generated once you crosss compile the uboot at 0x10000000 and then set BMS pin low at the power up.

This will give you uboot prompt as controller bootm from external.

Regards
Raj Nikumbh ?
-----Original Message-----
From: [email protected] [mailto:u-boot-bounces at lists.denx.de] On Behalf Of Rajeesh.R
Sent: Tuesday, June 22, 2010 6:11 PM
To: u-boot at lists.denx.de
Subject: [U-Boot] flash regards

Hi,

I am work with AT91rm9200dk board
AT49BV642DT flash is using for keep uboot .
In uboot which file and where the is the flash mode selection ie botom
boot or top boot flash selection is specifying. Or how can I configure
this flash in Uboot .
please help me ...

With Thanks
Rajeesh.R

#2 lore raw
In reply to Rajeesh.R

Dear "Rajeesh.R",

Quoted 6 lines · In message <[email protected]> you wrote:

I am work with AT91rm9200dk board
AT49BV642DT flash is using for keep uboot .
In uboot which file and where the is the flash mode selection ie botom
boot or top boot flash selection is specifying. Or how can I configure
this flash in Uboot .

This is the output of a "flinfo" ommnd running on the DK board:

U-Boot> flinfo
DataFlash:AT45DB642

Nb pages:   8192
Page Size:   1056

Size= 8650752 bytes
Logical address: 0xC0000000
Area 0: C0000000 to C00041FF (RO) Bootstrap
Area 1: C0004200 to C00083FF Environment
Area 2: C0008400 to C0041FFF (RO) U-Boot
Area 3: C0042000 to C0251FFF Kernel
Area 4: C0252000 to C083FFFF FS

Bank # 1: Atmel: AT49BV1614A (16Mbit)
Size: 2 MB in 39 Sectors
Sector Start Addresses:

    10000000 (RO) 10002000 (RO) 10004000 (RO) 10006000 (RO) 10008000 (RO)
    1000A000 (RO) 1000C000 (RO) 1000E000 (RO) 10010000 (RO) 10020000 (RO)
    10030000 (RO) 10040000 (RO) 10050000 (RO) 10060000 (RO) 10070000     
    10080000      10090000      100A0000      100B0000      100C0000     
    100D0000      100E0000      100F0000      10100000      10110000     
    10120000      10130000      10140000      10150000      10160000     
    10170000      10180000      10190000      101A0000      101B0000     
    101C0000      101D0000      101E0000      101F0000

The U-Boot code sits at the beginning of the NOR flash, starting at 0x10000000

Best regards,

Wolfgang Denk

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