diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-17 12:24:55 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-03-17 12:24:55 -0700 |
commit | c7eec380e85a427983782df744f0fb745d867170 (patch) | |
tree | f6e29dd044bdee983fde8db8d7a2eed791673d98 /Documentation/devicetree | |
parent | 37aa7319cd81a0eb587e552b0ec7e88c03853bf7 (diff) | |
parent | 69ae9895d3fed49ee830c491b3d51c72966a8a4c (diff) |
Merge tag 'rproc-v4.6' of git://github.com/andersson/remoteproc
Pull remoteproc updates from Bjorn Andersson:
"New driver for controlling ST's remote processors and a couple of
minor fixes. Also includes the addition of myself as co-maintainer"
Acked-by: Ohad Ben-Cohen <ohad@wizery.com>
* tag 'rproc-v4.6' of git://github.com/andersson/remoteproc:
MAINTAINERS: Add co-maintainer for remoteproc subsystems
remoteproc: Supply controller driver for ST's Remote Processors
remoteproc: debugfs: Add ability to boot remote processor using debugfs
remoteproc: dt: Provide bindings for ST's Remote Processor Controller driver
remoteproc: debugfs: Return error on invalid 'count' value
remoteproc/wkup_m3: Use MODULE_DEVICE_TABLE to export alias
remoteproc: report error if resource table doesn't exist
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r-- | Documentation/devicetree/bindings/remoteproc/st-rproc.txt | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/remoteproc/st-rproc.txt b/Documentation/devicetree/bindings/remoteproc/st-rproc.txt new file mode 100644 index 000000000000..1031bcd90a79 --- /dev/null +++ b/Documentation/devicetree/bindings/remoteproc/st-rproc.txt @@ -0,0 +1,41 @@ +STMicroelectronics Co-Processor Bindings +---------------------------------------- + +This binding provides support for adjunct processors found on ST SoCs. + +Co-processors can be controlled from the bootloader or the primary OS. If +the bootloader starts a co-processor, the primary OS must detect its state +and act accordingly. + +Required properties: +- compatible Should be one of: + "st,st231-rproc" + "st,st40-rproc" +- memory-region Reserved memory (See: ../reserved-memory/reserved-memory.txt) +- resets Reset lines (See: ../reset/reset.txt) +- reset-names Must be "sw_reset" and "pwr_reset" +- clocks Clock for co-processor (See: ../clock/clock-bindings.txt) +- clock-frequency Clock frequency to set co-processor at if the bootloader + hasn't already done so +- st,syscfg System configuration register which holds the boot vector + for the co-processor + 1st cell: Phandle to syscon block + 2nd cell: Boot vector register offset + +Example: + + audio_reserved: rproc@42000000 { + compatible = "shared-dma-pool"; + reg = <0x42000000 0x01000000>; + no-map; + }; + + st231-audio { + compatible = "st,st231-rproc"; + memory-region = <&audio_reserved>; + resets = <&softreset STIH407_ST231_AUD_SOFTRESET>; + reset-names = "sw_reset"; + clocks = <&clk_s_c0_flexgen CLK_ST231_AUD_0>; + clock-frequency = <600000000>; + st,syscfg = <&syscfg_core 0x228>; + }; |