[PATCH 1/2] arm: mediatek: add mt8195 SOC support

[Macpaul Lin]

On 11/9/22 15:32, Macpaul Lin wrote:
> 
> On 11/9/22 10:07, Chunfeng Yun (云春峰) wrote:
>> On Tue, 2022-11-08 at 11:21 +0800, Macpaul Lin wrote:
>>> From: Fabien Parent <fparent at baylibre.com>
>>>
>>> The MediaTek MT8195 is a ARM64-based SoC with a quad-core Cortex-A73
>>> and
>>> a quad-core Cortex-A53. It is including UART, SPI, USB3.0 device and
>>> hosts,
>>> SD and MMC cards, UFS, PWM, I2C, I2S, S/PDIF, and several LPDDR3
>>> and LPDDR4 options.
>>>
>>> Signed-off-by: Fabien Parent <fparent at baylibre.com>
>>> Signed-off-by: Macpaul Lin <macpaul.lin at mediatek.com>
>>> ---
>>>   MAINTAINERS                            |   2 +
>>>   arch/arm/dts/mt8195.dtsi               | 317
>>> +++++++++++++++++++++++++
>>>   arch/arm/mach-mediatek/Kconfig         |  13 +-
>>>   arch/arm/mach-mediatek/Makefile        |   1 +
>>>   arch/arm/mach-mediatek/mt8195/Makefile |   3 +
>>>   arch/arm/mach-mediatek/mt8195/init.c   |  81 +++++++
>>>   6 files changed, 416 insertions(+), 1 deletion(-)
>>>   create mode 100644 arch/arm/dts/mt8195.dtsi
>>>   create mode 100644 arch/arm/mach-mediatek/mt8195/Makefile
>>>   create mode 100644 arch/arm/mach-mediatek/mt8195/init.c

[deleted]

>>> +        xhci3: xhci3 at 112b0000 {
>> change node name as xhci? prefer to use the same name
>>
> 
> Since there are other board manufacturers will use the
> other HOST ports, like xhci1 or xhci2 with USB mass storage
> function by their needs.
> I'll add these 2 node in dtsi in next version.
> 
>>> +            compatible = "mediatek,mt8195-xhci",
>>> +                     "mediatek,mtk-xhci";
>>> +            reg = <0 0x112b0000 0 0x1000>,
>>> +                  <0 0x112b3e00 0 0x0100>;
>>> +            reg-names = "mac", "ippc";
>> remove "mac"
> 
> Will fix it in next version.
> 

Dear Chunfeng,

Unfortunately, if we remove "mac" register here for HOST only node like 
xhci3, the driver will complain about probing fail. Please check the 
following log.

=> usb start
starting USB...
Bus xhci3 at 112b0000: xhci-mtk xhci3 at 112b0000: failed to get xHCI base address
probe failed, error -6
No working controllers found

I'll add "mac" back to HOST only nodes.

Thanks!
Macpaul Lin