[PATCH v2 07/15] MIPS: lantiq: Convert the xbar driver to a platform_driver

[Hauke Mehrtens]

On 05/25/2017 08:22 PM, Hauke Mehrtens wrote:
> On 05/22/2017 08:05 AM, Andy Shevchenko wrote:
>> On Sun, May 21, 2017 at 4:09 PM, Hauke Mehrtens <hauke at hauke-m.de> wrote:
>>> From: Martin Blumenstingl <martin.blumenstingl at googlemail.com>
>>>
>>> This allows using the xbar driver on ARX300 based SoCs which require the
>>> same xbar setup as the xRX200 chipsets because the xbar driver
>>> initialization is not guarded by an xRX200 specific
>>> of_machine_is_compatible condition anymore. Additionally the new driver
>>> takes a syscon phandle to configure the XBAR endianness bits in RCU
>>> (before this was done in arch/mips/lantiq/xway/reset.c and also
>>> guarded by an VRX200 specific if-statement).
>>
>>
>>> +builtin_platform_driver(xbar_driver);
>>
>> Why it can't be module?
> 
> Currently this is used to load it early. This sets the AHB bus system
> which connects the USB and the PCIe controllers to the system to big
> Endian mode, this is needed for at least some accesses to these
> components. It would be better to have a dependency in device tree to
> reflect this.
> Should I use a phandle to connect them?
> 
> Hauke
> 

I will try to make this a bus driver which should be used instead of the
smiple-bus.

Hauke