[U-Boot] [PATCH v3 2/7] arm: usb: dra7xx: xHCI registers based on USB port index

[Marek Vasut <marex@denx.de>]

On 02/19/2017 03:55 PM, Uri Mashiach wrote:
> 
> 
> On 02/19/2017 04:27 PM, Marek Vasut wrote:
>> On 02/19/2017 02:27 PM, Uri Mashiach wrote:
>>> Modify the determination of the base address of xHCI registers of DRA7XX
>>> targets.
>>> Before the commit: by the target.
>>> After the commit: by the USB port index.
>>>
>>> Cc: Lokesh Vutla <lokeshvutla@ti.com>
>>> Cc: Marek Vasut <marex@denx.de>
>>> Signed-off-by: Uri Mashiach <uri.mashiach@compulab.co.il>
>>> ---
>>> V1 -> V2: Replace the commit "fix XHCI registers base address".
>>> V2 -> V3: Replace the commit "reintroduce the CONFIG_AM57XX symbol"
>>>
>>>  configs/dra7xx_evm_defconfig    |  1 +
>>>  configs/dra7xx_hs_evm_defconfig |  1 +
>>>  drivers/usb/host/Kconfig        | 16 ++++++++++++++++
>>>  include/linux/usb/xhci-omap.h   |  6 ++++--
>>>  4 files changed, 22 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/configs/dra7xx_evm_defconfig b/configs/dra7xx_evm_defconfig
>>> index 26b26cc..1f47f92 100644
> 
> [...]
> 
>>> diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
>>> index 5129a57..440fbcf 100644
>>> --- a/drivers/usb/host/Kconfig
>>> +++ b/drivers/usb/host/Kconfig
>>> @@ -43,6 +43,22 @@ config USB_XHCI_ZYNQMP
>>>      help
>>>        Enables support for the on-chip xHCI controller on Xilinx
>>> ZynqMP SoCs.
>>>
>>> +choice
>>> +    prompt "DRA7XX xHCI USB index select"
>>> +    depends on DRA7XX
>>> +
>>> +config USB_XHCI_DRA7XX_INDEX0
>>> +    bool "USB0"
>>> +    help
>>> +      DRA7XX xHCI USB0.
>>> +
>>> +config USB_XHCI_DRA7XX_INDEX1
>>> +    bool "USB1"
>>> +    help
>>> +      DRA7XX xHCI USB1.
>>
>> What is this all about ? Shouldn't this come from DT ? And what if I
>> want to use both XHCI ? This looks totally bogus ...
>>
> 
> The support for both XHCI is currently missing.
> This could be a temporary solution until the DT solution.
> The current situation is worse - selecting USB0 or USB1 based on the
> target.

So we're replacing it with equally bad solution ? Hmmm , no.
The MW will open mid-march, there's about a month to fix this,
so please do.


-- 
Best regards,
Marek Vasut