| Message ID | 20210623173243.7862-3-s-anna@ti.com |
|---|---|
| State | New |
| Headers | show |
| Series | Add AM64x SoC support to PRU remoteproc driver | expand |
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 >
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 }, {}, }; MODULE_DEVICE_TABLE(of, pru_rproc_match);
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(+)