[Qemu-devel] [PATCH 0/3] sh: SE7750 board support

[Qemu-devel] [PATCH 0/3] sh: SE7750 board support

[Shin-ichiro KAWASAKI]

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.


Regards,
Shin-ichiro KAWASAKI

Re: [Qemu-devel] [PATCH 0/3] sh: SE7750 board support

[Shin-ichiro KAWASAKI]

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
                                              available today.

I'm sorry for noise, and thank you for reviews and discussions on them.


Regards,
Shin-ichiro KAWASAKI

Re: [Qemu-devel] [PATCH 0/3] sh: SE7750 board support

[Jean-Christophe PLAGNIOL-VILLARD]

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

Best Regards,
J.

Re: [Qemu-devel] [PATCH 0/3] sh: SE7750 board support

[Shin-ichiro KAWASAKI]

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