linux-kernel - Re: [PATCH 2/2] remoteproc: imx

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Message-ID: <20210610170509.GE34238@p14s>
Date:   Thu, 10 Jun 2021 11:05:09 -0600
From:   Mathieu Poirier <mathieu.poirier@...aro.org>
To:     "Peng Fan (OSS)" <peng.fan@....nxp.com>
Cc:     ohad@...ery.com, bjorn.andersson@...aro.org,
        o.rempel@...gutronix.de, shawnguo@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
        linux-imx@....com, linux-remoteproc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Peng Fan <peng.fan@....com>
Subject: Re: [PATCH 2/2] remoteproc: imx_rproc: support i.MX8ULP

On Fri, Jun 04, 2021 at 03:23:11PM +0800, Peng Fan (OSS) wrote:
> From: Peng Fan <peng.fan@....com>
> 
> i.MX8ULP is a new SoC with Ultra low power support, it has a Cortex-M33
> core and two Cortex-A35 cores. We need to add new configuration because
> it could not reuse the previous i.MX7/8 configuration.
> 
> i.MX8ULP M33 core is kicked by ROM, it is not under control of A35 core.
> So need to mark the method is IMX_RPROC_NONE.
> 
> Signed-off-by: Peng Fan <peng.fan@....com>
> ---
>  drivers/remoteproc/imx_rproc.c | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
>

Reviewed-by: Mathieu Poirier <mathieu.poirier@...aro.org>

> diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
> index 7cc0cadea1cc..d88f76f5305e 100644
> --- a/drivers/remoteproc/imx_rproc.c
> +++ b/drivers/remoteproc/imx_rproc.c
> @@ -172,6 +172,12 @@ static const struct imx_rproc_att imx_rproc_att_imx8mq[] = {
>  	{ 0x40000000, 0x40000000, 0x80000000, 0 },
>  };
>  
> +static const struct imx_rproc_att imx_rproc_att_imx8ulp[] = {
> +	{0x1FFC0000, 0x1FFC0000, 0xC0000, ATT_OWN},
> +	{0x21000000, 0x21000000, 0x10000, ATT_OWN},
> +	{0x80000000, 0x80000000, 0x60000000, 0}
> +};
> +
>  static const struct imx_rproc_att imx_rproc_att_imx7ulp[] = {
>  	{0x1FFD0000, 0x1FFD0000, 0x30000, ATT_OWN},
>  	{0x20000000, 0x20000000, 0x10000, ATT_OWN},
> @@ -246,6 +252,12 @@ static const struct imx_rproc_dcfg imx_rproc_cfg_imx8mq = {
>  	.method		= IMX_RPROC_MMIO,
>  };
>  
> +static const struct imx_rproc_dcfg imx_rproc_cfg_imx8ulp = {
> +	.att		= imx_rproc_att_imx8ulp,
> +	.att_size	= ARRAY_SIZE(imx_rproc_att_imx8ulp),
> +	.method		= IMX_RPROC_NONE,
> +};
> +
>  static const struct imx_rproc_dcfg imx_rproc_cfg_imx7ulp = {
>  	.att		= imx_rproc_att_imx7ulp,
>  	.att_size	= ARRAY_SIZE(imx_rproc_att_imx7ulp),
> @@ -824,6 +836,7 @@ static const struct of_device_id imx_rproc_of_match[] = {
>  	{ .compatible = "fsl,imx8mm-cm4", .data = &imx_rproc_cfg_imx8mq },
>  	{ .compatible = "fsl,imx8mn-cm7", .data = &imx_rproc_cfg_imx8mn },
>  	{ .compatible = "fsl,imx8mp-cm7", .data = &imx_rproc_cfg_imx8mn },
> +	{ .compatible = "fsl,imx8ulp-cm33", .data = &imx_rproc_cfg_imx8ulp },
>  	{},
>  };
>  MODULE_DEVICE_TABLE(of, imx_rproc_of_match);
> -- 
> 2.30.0
>