[U-Boot] [PATCH v2] drivers: usb: xhci-fsl: Implement Erratum A-010151 for FSL USB3 controller

[Marek Vasut]

On 08/24/2016 12:39 PM, Sriram Dash wrote:
> Currently the controller by default enables the Receive Detect feature in P3
> mode in USB 3.0 PHY. However, USB 3.0 PHY does not reliably support receive
> detection in P3 mode.
> Enabling the USB3 controller to configure USB in P2 mode whenever the Receive
> Detect feature is required.
> 
> Signed-off-by: Sriram Dash <sriram.dash at nxp.com>
> Signed-off-by: Rajesh Bhagat <rajesh.bhagat at nxp.com>
> ---
> Changes in v2:
>   - Do Soc ver checking for applying erratum
> 
>  drivers/usb/common/fsl-errata.c | 26 ++++++++++++++++++++++++++
>  drivers/usb/host/xhci-dwc3.c    |  5 +++++
>  drivers/usb/host/xhci-fsl.c     |  8 ++++++++
>  include/fsl_usb.h               |  1 +
>  include/linux/usb/dwc3.h        |  2 ++
>  5 files changed, 42 insertions(+)
> 
> diff --git a/drivers/usb/common/fsl-errata.c b/drivers/usb/common/fsl-errata.c
> index 183bf2b..f2bffba 100644
> --- a/drivers/usb/common/fsl-errata.c
> +++ b/drivers/usb/common/fsl-errata.c
> @@ -190,4 +190,30 @@ bool has_erratum_a008751(void)
>  	return false;
>  }
>  
> +bool has_erratum_a010151(void)
> +{
> +	u32 svr = get_svr();
> +	u32 soc = SVR_SOC_VER(svr);
> +
> +	switch (soc) {
> +#ifdef CONFIG_ARM64
> +	case SVR_LS2080A:
> +	case SVR_LS2085A:
> +	case SVR_LS1046A:
> +	case SVR_LS1012A:
> +		return IS_SVR_REV(svr, 1, 0);
> +	case SVR_LS1043A:
> +		return IS_SVR_REV(svr, 1, 0) || IS_SVR_REV(svr, 1, 1);
> +#endif
> +#ifdef CONFIG_LS102XA
> +	case SOC_VER_LS1020:
> +	case SOC_VER_LS1021:
> +	case SOC_VER_LS1022:
> +	case SOC_VER_SLS1020:
> +		return IS_SVR_REV(svr, 2, 0);
> +#endif
> +	}

Is the ifdef really needed ?

-- 
Best regards,
Marek Vasut