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Date: Sun, 08 Feb 2009 09:41:02 +0900
From: Shin-ichiro KAWASAKI <kawasaki@juno.dti.ne.jp>
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Subject: Re: [Qemu-devel] [PATCH 0/3] sh: SE7750 board support
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To: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: qemu-devel@nongnu.org

Hi, Jean.

Jean-Christophe PLAGNIOL-VILLARD wrote:
> On 22:25 Sat 07 Feb     , Shin-ichiro KAWASAKI wrote:
>> Shin-ichiro KAWASAKI wrote:
>>> Hi, all.
>>>
>>> I'm sending a patch series which provide SE7750 := Solution Engine 7750
>>> board emulation.  SE7750 is one of SH4 cpu boards, and uses peripherals
>>> in a different way from r2d+ board.  Then it is useful to check the
>>> maturity of SH4 peripheral emulation.  In fact, two lacks got apparent.
>>>
>>>  - cache flush emulation by "movca.l" and "obci" : thanx to Edgar.
>>>  - SCI := serial communication interface emulation.
>>>
>>> Improvements for them are included in this series. 
>>>
>>> This work is checked with linux 2.6.28 with se7750_defconfig with initramfs. 
>>> I saw login prompt of '/bin/ash' and 'ls' working finely.
>>>
>>> With these patches and linux kernel 2.6.18, we can see Real Time Clock
>>> module causes boot failure, though work for avoiding it is left.
>>> NIC and CF do not work either.
>> Though I posted three patches, I want to make it clear that I cancel them now.
>> Reasons to cancel are as follows.
>>
>>   [PATCH 1/3] sh: SE7750 board definition ... SE7750 board is too old, and
>>                                               not available.
>>   [PATCH 2/3] sh: movca.l cancel by ocbi  ... Vladimir Prus already had
>>                                               posted same patch.
>>   [PATCH 3/3] sh: SCI improvements        ... SCI is not used by boards
> please do not with this one u-boot will not work on the r2d

I'm not yet sure why u-boot on r2d needs SCI.
For serial console, or for SPI connection for RTC?

Please be sure that r2d uses SCI only for SPI/RTC.
If u-boot needs a serial console, it must use SCIF instead of SCI.


Regards,
Shin-ichiro KAWASAKI