RE: [PATCH v3 5/5] remoteproc: imx_rproc: change to ioremap_wc for dram

["Peng Fan (OSS)" <peng.fan@oss.nxp.com>]

> Subject: [PATCH v3 5/5] remoteproc: imx_rproc: change to ioremap_wc for
> dram
> 
> DRAM is not io memory, so changed to ioremap_wc. This is also aligned with
> core io accessories. e.g. memcpy/memset and cpu direct access.
> 
> Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
> Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
> Cc: Peng Fan <peng.fan@nxp.com>
> Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>

Reviewed-by: Peng Fan <peng.fan@nxp.com>

> ---
> v2->v3:
>  * patch content unchanged.
>    Only drop the wrong tag in v2
>    Tested on MX8MQ and MX8MP, MX7ULP.
> v1->v2:
>  * new patch
> ---
>  drivers/remoteproc/imx_rproc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/remoteproc/imx_rproc.c
> b/drivers/remoteproc/imx_rproc.c index ff620688fad9..4ae416ba5080
> 100644
> --- a/drivers/remoteproc/imx_rproc.c
> +++ b/drivers/remoteproc/imx_rproc.c
> @@ -597,7 +597,7 @@ static int imx_rproc_addr_init(struct imx_rproc *priv,
>  			break;
> 
>  		/* Not use resource version, because we might share region */
> -		priv->mem[b].cpu_addr = devm_ioremap(&pdev->dev, res.start,
> resource_size(&res));
> +		priv->mem[b].cpu_addr = devm_ioremap_wc(&pdev->dev,
> res.start,
> +resource_size(&res));
>  		if (!priv->mem[b].cpu_addr) {
>  			dev_err(dev, "failed to remap %pr\n", &res);
>  			return -ENOMEM;
> --
> 2.25.1