[U-Boot] [PATCH 2/4] usb: dwc2-otg: redefine fifo-size for rk3288

[Ziyuan Xu]

hi simon,

On 2016年06月30日 23:23, Simon Glass wrote:
> Hi Ziyuan,
>
> On 30 June 2016 at 00:21, Ziyuan Xu <xzy.xu at rock-chips.com> wrote:
>> Redefine RX FIFO size & TX FIFO size for rk3288.
>>
>> Signed-off-by: Ziyuan Xu <xzy.xu at rock-chips.com>
>> ---
>>
>>   drivers/usb/gadget/dwc2_udc_otg_regs.h | 6 ++++++
>>   1 file changed, 6 insertions(+)
>>
>> diff --git a/drivers/usb/gadget/dwc2_udc_otg_regs.h b/drivers/usb/gadget/dwc2_udc_otg_regs.h
>> index 78ec90e..a0617c8 100644
>> --- a/drivers/usb/gadget/dwc2_udc_otg_regs.h
>> +++ b/drivers/usb/gadget/dwc2_udc_otg_regs.h
>> @@ -130,8 +130,14 @@ struct dwc2_usbotg_reg {
>>   #define HIGH_SPEED_CONTROL_PKT_SIZE    64
>>   #define HIGH_SPEED_BULK_PKT_SIZE       512
>>
>> +#ifdef CONFIG_ROCKCHIP_RK3288
>> +#define RX_FIFO_SIZE                   (275*4)
>> +#define NPTX_FIFO_SIZE                 (16*4)
>> +#else
>>   #define RX_FIFO_SIZE                   (1024*4)
>>   #define NPTX_FIFO_SIZE                 (1024*4)
>> +#endif
> I cannot see where this is used. Can you explain? Also can you add a
> reason for the change in your commit message?
Both RX_FIFO_SIZE and NPTX_FIFO_SIZE are used in 
dwc2_udc_otg.c::reconfig_usbd() for fifo configuration.
We need to redefine properly for rk3288 soc.
>
>> +
>>   #define PTX_FIFO_SIZE                  (1536*1)
>>
>>   #define DEPCTL_TXFNUM_0                (0x0<<22)
>> --
>> 1.9.1
>>
>>
> Regards,
> Simon
>
>
>