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Re: [Qemu-devel] [PATCH] Versatile Express: add modelling of NOR flash

From: Francesco Lavra
Subject: Re: [Qemu-devel] [PATCH] Versatile Express: add modelling of NOR flash
Date: Mon, 17 Sep 2012 19:29:19 +0200
User-agent: Mozilla/5.0 (X11; Linux i686; rv:7.0.1) Gecko/20110929 Thunderbird/7.0.1

On 09/17/2012 03:21 PM, Peter Maydell wrote:
> On 5 September 2012 20:07, Francesco Lavra <address@hidden> wrote:
>> Documentation at
>> http://infocenter.arm.com/help/topic/com.arm.doc.ddi0503c/CHDEFDJF.html
>> says that the entire first 512 MB can be mapped to either SMC (which is
>> the default) or AXI, so if AXI is selected neither of the 2 flash banks
>> is visible. Also, the same doc says that it's possible to map either
>> NOR0 (default) or NOR1 to the address 0x00000000. This implies that in
>> the A Series memory map VE_NORFLASH0 should be at 0x08000000 and
>> VE_NORFLASH0ALIAS at 0x00000000, not the other way around (by the way,
>> this is also how U-Boot defines the memory for the A5 CoreTile). Maybe
>> worth a patch?
> Agreed, NORFLASH0 should be at 0x08000000 in the new memory map. Unless
> anybody actually needs the aliasing of the flash at address zero, I
> suggest just deleting all references to VE_NORFLASH0ALIAS.

Ok, thanks, then I'm going to send a 2 patch series, which first will
fix NORFLASH0 and remove NORFLASH0ALIAS, and then will actually add the
flash modelling.

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