Re: [PATCH 2/2] remoteproc: pru: Add support for various PRU cores on K3 AM64x SoCs

[Mathieu Poirier <mathieu.poirier@linaro.org>]

On Wed, Jun 23, 2021 at 12:32:42PM -0500, Suman Anna wrote:
> The K3 AM64x family of SoCs have a ICSSG IP that is similar to the
> version on AM65x SR2.0 SoCs with some minor differences. The AM64x
> SoCs contain two instances of this newer ICSSG IP. Each ICSSG processor
> subsystem contains 2 primary PRU cores, 2 auxiliary PRU cores called
> RTUs, and 2 new auxiliary cores called Transmit PRUs (Tx_PRUs).
> 
> Enhance the existing PRU remoteproc driver to support all these PRU,
> RTU and Tx_PRU cores by using specific compatibles. The cores have the
> same memory copying limitations as on AM65x, so reuses the custom memcpy
> function within the driver's ELF loader implementation. The initial
> names for the firmware images for each PRU core are retrieved from
> DT nodes, and can be adjusted through sysfs if required.
> 
> Signed-off-by: Suman Anna <s-anna@ti.com>
> ---
>  drivers/remoteproc/pru_rproc.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/remoteproc/pru_rproc.c b/drivers/remoteproc/pru_rproc.c
> index e5778e476245..0ecf2675f5eb 100644
> --- a/drivers/remoteproc/pru_rproc.c
> +++ b/drivers/remoteproc/pru_rproc.c
> @@ -894,6 +894,9 @@ static const struct of_device_id pru_rproc_match[] = {
>  	{ .compatible = "ti,j721e-pru",		.data = &k3_pru_data },
>  	{ .compatible = "ti,j721e-rtu",		.data = &k3_rtu_data },
>  	{ .compatible = "ti,j721e-tx-pru",	.data = &k3_tx_pru_data },
> +	{ .compatible = "ti,am642-pru",		.data = &k3_pru_data },
> +	{ .compatible = "ti,am642-rtu",		.data = &k3_rtu_data },
> +	{ .compatible = "ti,am642-tx-pru",	.data = &k3_tx_pru_data },
>  	{},

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

>  };
>  MODULE_DEVICE_TABLE(of, pru_rproc_match);
> -- 
> 2.30.1
>