Re: Marvell D2Plug

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On Mon, Jun 6, 2011 at 3:08 PM, saeed bishara <saeed.bishara@xxxxxxxxx> wrote:
>>> cpu specific:
>>> - add support for openocd
>>> - add support for iperf/oprofile
>>> arch specific:
>>> - soc clocks
>>> - idt clock generator driver
>>> - power management (cpuidle, cprufreq, suspend to dram, suspend to disk)
>>
>> So all of the cpu specific stuff is going to be handled already, right?
> yes, that's right
>>
>>> drivers:
>>> - LCD. Marvell's implementation at drivers/video/marvell/. the
>>> in-kernel pxa168 should re-used here.
>>
>> This is handled, right?
> yes, that was suggested by Lennert Buytenhek (the author of pxa168)
> who also familiar with dove.
>>
>>> - Disaply driver for the adi9889 (HDMI transmitter). Marvell's
>>> impelmentation at drivers/video/display/adi9889
>>
>> So this is already done?
> out implementation here doesn't follow linux coding style, so this
> driver need to be re-written
>>
>>> - Audio I2S. controller similar to Kirkwood, need to reuse the
>>> sound/soc/kirkwood/.
>>> - Audio AC97. controller similar to pxa socs. need to reuse the pxa2xx
>>> sound driver.
>>>   (the D2Plug doesn't use this interface)
>>
>> What are the differences between the existing drivers and the hardware
>> that requires changes to these drivers?
> the I2S hardware is the same as in kirkwood, so all needed here is to
> do device registration and to create dove specific board setup file.
> the AC97 also the same on found in pxa, so what we need here is to
> make this driver common between pxa and dove
>
>>
>>> - Camera, controller similar to the Cafe pci card. need to reuse cafe_ccic.
>>>   (the D2Plug doesn't use this interface)
>>
>> So we don't need this, right?
> neither D2Plug nor any of out customer that I'm aware of uses this
> interface, so meanwhile we don't need it.
>>
>>> - NAND, controller based on pxa nand. but alot of features needed.
>>> Marvell's implementation:
>>> arch/arm/plat-orion/mv_hal_drivers/mv_hal/nfc/mvNfc.*
>>> drivers/mtd/nand/orion_nfc_hal.c
>>
>> So this is already done?
> this driver is not ready for mainline merge as it also doesn't conform
> to linux coding style, so this driver need to be re-written.
>>
>>> - USB host mode supported, need to support dove specific phy settings.
>>> Marvell's implementation drivers/usb/host/ehci-orion.c
>>
>> So this is done?
> our patches to this driver very close to linux coding style, a little
> cleanup need to be done here to make it ready
>>
>>> - USB device mode, should reuse the fsl_usb2_udc as it seems we have same ip.
>>
>> Good, just a new device id then?
> this is platform driver (not pci), so platform driver registration is
> needed, also dove specific phy setting need to be added (it will be
> great if that can be share with the host mode code).
>>
>>>
>>> - I2C, supported by i2c-mv64xxx. new few features needed. Kostya
>>> already posted patches for it
>>> - Thermal sensor. new driver needed, Marvell's implementation
>>> arch/arm/mach-dove/hwmon.c
>>> - Sata, supported by sata_mv
>>> - Giga, supported by mv643xx_eth
>>> - PCIe, supported by arch/arm/plat-orion/pcie.c
>>> - Xor engine, supported by drivers/dma/mv_xor.c
>>> - SDIO: sdhci compatible
>>> - RTC: supported by mv-rtc
>>>
>>> - power Management, almost for all drivers.
>>
>> It's a good start of a list, but I think we need more specifics,
>> including data sheets and hardware, before we can do more.
> sure, boards should be available end of this month, Marvell still
> working on disclosed version of the data sheet of the board and soc.
well not sure if I was on CC. Are boards already available?
>>
>> thanks,
>>
>> greg k-h
>>
>

thanks,

marek

-- 
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