[PATCH] Fix AT91SAM9G20 reset
phorton at bitbox.co.uk
Thu Oct 14 11:31:19 EDT 2010
On 14/10/2010 14:34, Nicolas Ferre wrote:
> Le 28/05/2010 17:37, Peter Horton :
>> Fix AT91SAM9G20 as per the errata in the datasheet.
>> If the SDRAM is not cleanly shutdown before reset it can be left driving
>> the bus, which then stops the bootloader booting from NAND.
>> Signed-off-by: Peter Horton<phorton at bitbox.co.uk>
> Thanks a lot for writing this patch. I am in the process of reviewing it
> and extending it to other processors.
>> --- /dev/null 1970-01-01 00:00:00.000000000 +0000
>> +++ linux-2.6.32/arch/arm/mach-at91/at91sam9g20_reset.S 2009-12-09 13:33:28.000000000 +0000
>> @@ -0,0 +1,52 @@
>> + * (C) BitBox Ltd 2010
>> + *
>> + * reset AT91SAM9G20 as per errata
>> + *
>> + * unless the SDRAM is cleanly shutdown before we hit the
>> + * reset register it can be left driving the data bus and
>> + * killing the chance of a subsequent boot from NAND
> Can I add License sentence to this file? Like this one:
> * This program is free software; you can redistribute it and/or modify
> * it under the terms of the GNU General Public License as published by
> * the Free Software Foundation; either version 2 of the License, or
> * (at your option) any later version.
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