[U-Boot] 83xx and LCRR setting

Heiko Schocher
2009-08-22T06:17:51Z

Hello Kim,

Kim Phillips wrote:
> On Thu, 20 Aug 2009 12:05:58 +0200
> Heiko Schocher <hs@denx.de> wrote:
>
>>>> On my board (and for example on the MPC832XEMDS) the flash is connected
>>>> to the localbus ... and this register setting is done, while
>>>> running from flash ... Hmm.. is this safe?
>>> yeah, I'm not quite sure how that works myself!
>> I stumbled over this, just because I didn;t set this
>> LCRR_DBYP bit, which the CPU sets after a reset, so
>> what Do you think about this patch?
>>
>> 832x, LCRR: change only the valid bits for this register
>>
>> Signed-off-by: Heiko Schocher <hs@denx.de>
>
>> +#if defined(CONFIG_MPC832x)
>> +#define LCRR_MASK 0xFFFCFFF0
>
> if it's only the DBYP bit that is set out of reset, can we make this
> 0x80000000?

Hmm.. but all the other bits are reserved=0. What happens if they
are set to 1?

bye
Heiko