From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Date: Mon, 20 Oct 2008 13:15:13 +0200
Subject: [U-Boot] Atmel AT91RM9200: U-Boot refuses to copy to
	a	particular sector of flash memory
In-Reply-To: <7df14ee10810200216r2c084902qeef00b3d43da851d@mail.gmail.com>
References: <7df14ee10810200216r2c084902qeef00b3d43da851d@mail.gmail.com>
Message-ID: <20081020111513.GA20502@game.jcrosoft.org>
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On 17:16 Mon 20 Oct     , Ki Chi Leung wrote:
> Hello list,
hi
Could you specify the U-Boot version.

the command sequence that you use please

Best Regards,
J.
> 
> I am trying to load a Linux 2.6.22 kernel uimage on the flash memory
> of a custom Atmel AT91RM9200 board. From U-Boot the flash memory map
> is as follows:
> 
> U-Boot> flinfo
> DataFlash:AT45DB161
> Nb pages:   4096
> Page Size:    528
> Size= 2162688 bytes
> Logical address: 0xC0000000
> Area 0: C0000000 to C0007FFF (RO)
> Area 1: C0008000 to C001FFFF (RO)
> Area 2: C0020000 to C0027FFF
> Area 3: C0028000 to C020FFFF
> 
> Bank # 1: Atmel: AT49BV163D (16Mbit)
>   Size: 2 MB in 39 Sectors
>   Sector Start Addresses:
>     10000000 (RO) 10002000 (RO) 10004000 (RO) 10006000      10008000
>     1000A000      1000C000      1000E000 (RO) 10010000 (RO) 10020000
>     10030000      10040000      10050000      10060000      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
> 
btw I supposed that 1000E000 (RO) 10010000 (RO) is your env sector, maybe you
can put the env just after U-Boot itself to not loose space.

> I also have 2x 48LC8M16A2 modules (32MB, SDRAM, address 0x20000000 -
> 0x21ffffff) which I download the kernel to before copying to flash.
do check that the uImage in ram is correct? (just to be sure)
> 
> I have to copy the kernel into the flash starting at address
> 0x10020000 (lower addresses reserved by U-Boot apparently). However,
> when I try to copy the 1018KB uimage, the copy always fails with
> "flash not erased", even after the sectors have been unprotected and
> erased.

Best Regards,
J.