[linux-sunxi] [PATCH v4 3/8] phy: sun4i-usb: add PHYCTL offset for H3 SoC
Icenowy Zheng
icenowy at aosc.xyz
Thu Mar 23 23:27:24 PDT 2017
24.03.2017, 11:05, "Chen-Yu Tsai" <wens at csie.org>:
> On Mon, Mar 20, 2017 at 12:19 AM, Icenowy Zheng <icenowy at aosc.xyz> wrote:
>> The config structure of H3 in phy-sun4i-usb driver have the PHYCTL
>> register offset missing.
>>
>> Add it. Because it's a SoC after A33, its PHYCTL offset should be 0x10.
>
> You are implying that all SoCs after A33 have PHYCTL at 0x10.
>
> This is not true. As the A83T, which was released after the A33, has
> PHYCTL at the old offset.
No, in Allwinner's BSP A83T is using also PHYCTL at 0x10.
The code in linux-3.4/drivers/usb/sunxi_usb/include/sunxi_usb_bsp.c is
```
#if defined (CONFIG_ARCH_SUN8IW5) || defined (CONFIG_ARCH_SUN8IW6) || defined (CONFIG_ARCH_SUN8IW9) || defined (CONFIG_ARCH_SUN8IW8) || defined (CONFIG_ARCH_SUN8IW7)
#define USBPHYC_REG_o_PHYCTL 0x0410
#else
#define USBPHYC_REG_o_PHYCTL 0x0404
#endif
```
In linux-3.10/drivers/usb/sunxi_usb/include/sunxi_usb_bsp.c is
```
#if defined (CONFIG_ARCH_SUN50I) || defined (CONFIG_ARCH_SUN8IW10) || defined (CONFIG_ARCH_SUN8IW11)
#define USBPHYC_REG_o_PHYCTL 0x0410
#else
#define USBPHYC_REG_o_PHYCTL 0x0404
#endif
```
So sun50i* and sun50iw5~w11 all use PHYCTL at 0x10.
>
> Just state that H3 has PHYCTL at 0x10.
>
> ChenYu
>
>> Signed-off-by: Icenowy Zheng <icenowy at aosc.xyz>
>> ---
>> New patch in v4.
>>
>> drivers/phy/phy-sun4i-usb.c | 1 +
>> 1 file changed, 1 insertion(+)
>>
>> diff --git a/drivers/phy/phy-sun4i-usb.c b/drivers/phy/phy-sun4i-usb.c
>> index 62b4d25448c6..a650f283f6ff 100644
>> --- a/drivers/phy/phy-sun4i-usb.c
>> +++ b/drivers/phy/phy-sun4i-usb.c
>> @@ -821,6 +821,7 @@ static const struct sun4i_usb_phy_cfg sun8i_h3_cfg = {
>> .num_phys = 4,
>> .type = sun8i_h3_phy,
>> .disc_thresh = 3,
>> + .phyctl_offset = REG_PHYCTL_A33,
>> .dedicated_clocks = true,
>> .enable_pmu_unk1 = true,
>> };
>> --
>> 2.12.0
>>
>> --
>> You received this message because you are subscribed to the Google Groups "linux-sunxi" group.
>> To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscribe at googlegroups.com.
>> For more options, visit https://groups.google.com/d/optout.
>
> --
> You received this message because you are subscribed to the Google Groups "linux-sunxi" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscribe at googlegroups.com.
> For more options, visit https://groups.google.com/d/optout.
More information about the linux-arm-kernel
mailing list