diff options
| author | Julien Massot <julien.massot@iot.bzh> | 2021-12-07 19:58:29 +0300 |
|---|---|---|
| committer | Mathieu Poirier <mathieu.poirier@linaro.org> | 2021-12-13 21:30:55 +0300 |
| commit | 285892a74f1370a12249f765c6a4e3b16194852e (patch) | |
| tree | d40344c96ec701f79df0b029ec62dff2755a37ed /drivers/remoteproc/Kconfig | |
| parent | d3c76a42ecc7c41ddcba1455f4f6631648812df0 (diff) | |
| download | linux-285892a74f1370a12249f765c6a4e3b16194852e.tar.xz | |
remoteproc: Add Renesas rcar driver
Renesas Gen3 platform includes a Cortex-r7 processor.
Both: the application cores (A5x) and the realtime core (CR7)
share access to the RAM and devices with the same address map,
so device addresses are equal to the Linux physical addresses.
In order to initialize this remote processor we need to:
- power on the realtime core
- put the firmware in a RAM area
- set the boot address for this firmware (reset vector)
- Deassert the reset
This initial driver allows to start and stop the Cortex R7
processor.
Signed-off-by: Julien Massot <julien.massot@iot.bzh>
Link: https://lore.kernel.org/r/20211207165829.195537-3-julien.massot@iot.bzh
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Diffstat (limited to 'drivers/remoteproc/Kconfig')
| -rw-r--r-- | drivers/remoteproc/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig index f2e961f998ca..3ddd426fc969 100644 --- a/drivers/remoteproc/Kconfig +++ b/drivers/remoteproc/Kconfig @@ -283,6 +283,17 @@ config QCOM_WCNSS_PIL verified and booted with the help of the Peripheral Authentication System (PAS) in TrustZone. +config RCAR_REMOTEPROC + tristate "Renesas R-Car Gen3 remoteproc support" + depends on ARCH_RENESAS || COMPILE_TEST + help + Say y here to support R-Car realtime processor via the + remote processor framework. An ELF firmware can be loaded + thanks to sysfs remoteproc entries. The remote processor + can be started and stopped. + This can be either built-in or a loadable module. + If compiled as module (M), the module name is rcar_rproc. + config ST_REMOTEPROC tristate "ST remoteproc support" depends on ARCH_STI |