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| author | Lokesh Vutla <lokeshvutla@ti.com> | 2018-08-27 15:57:52 +0530 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2018-09-11 08:32:55 -0400 |
| commit | c365ed7d4bc4173baad05a0c2d40d48ce8e41394 (patch) | |
| tree | 27df49ae26e9b4f620ca406e58bb9ad04fd886b4 /doc | |
| parent | 1ad190bf5936ad87d0bd80ecf55a1ce09e9d3ae9 (diff) | |
| download | u-boot-c365ed7d4bc4173baad05a0c2d40d48ce8e41394.zip u-boot-c365ed7d4bc4173baad05a0c2d40d48ce8e41394.tar.gz u-boot-c365ed7d4bc4173baad05a0c2d40d48ce8e41394.tar.bz2 | |
remoteproc: Introduce K3 remoteproc driver
Add support for K3 based remoteproc driver that
communicates with TISCI to start start a remote processor.
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/device-tree-bindings/remoteproc/k3-rproc.txt | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/remoteproc/k3-rproc.txt b/doc/device-tree-bindings/remoteproc/k3-rproc.txt new file mode 100644 index 0000000..0a1e858 --- /dev/null +++ b/doc/device-tree-bindings/remoteproc/k3-rproc.txt @@ -0,0 +1,50 @@ +Texas Instruments' K3 Remote processor driver +============================================= + +In K3 generation Socs, loading an image on any processing entity +cannot be done directly from U-Boot. In order to load an image, +remoteproc driver should communicate to SYSFW with a specific sequence. +Also enable the timer required for this remotecore. + +Required properties: +-------------------- +- compatible: Shall be: "ti,am654-rproc" +- reg: base address of the remoteproc timer. +- power-domains: Should contain two sets of entries: + First set corresponds to pm domain of the + remotecore timer. Seconf entry corresponds to the + remoteproc to start. + This property is as per the binding, + doc/device-tree-bindings/power/ti,sci-pm-domain.txt +- resets: Should contain a phandle to a reset controller node + and an args specifier containing the remote code + device id and reset mask value. This is as per the + doc/device-tree-bindings/reset/ti,sci-reset.txt +- ti,sci: Phandle to TI-SCI compatible System controller node. +- ti,sci-proc-id: Processor id as identified by TISCI + +Optional properties: +-------------------- +- assigned-clocks: Should contain a phandle to clock node and an args + specifier containing the remote core device id and + the clock id within the remote core. This is as per + doc/device-tree-bindings/clock/ti,sci-clk.txt +- assigned-clock-rates: One entry for each entry of assigned-clocks. This is + the frequency at which the corresponding clock needs + to be assigned. +- ti,sci-host-id: Host ID to which the processor control is transferred to + +Example: +--------- + +a53_0: a53@0 { + compatible = "ti,am654-rproc"; + power-domains = <&k3_pds 61>, + <&k3_pds 202>; + resets = <&k3_reset 202 0>; + assigned-clocks = <&k3_clks 202 0>; + assigned-clock-rates = <800000000>; + ti,sci = <&dmsc>; + ti,sci-proc-id = <32>; + ti,sci-host-id = <10>; +}; |