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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2017-03-21 13:57:51 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2017-03-31 18:43:53 +0200 |
| commit | 99020ca016f5569a14ef7571384a0205f13522e8 (patch) | |
| tree | 35181d160941f21dad895366b550cf9c598a5bd7 /Documentation | |
| parent | 12960a57841d5e6ea04fd523611e15a9a4170c89 (diff) | |
| download | barebox-99020ca016f5569a14ef7571384a0205f13522e8.tar.gz barebox-99020ca016f5569a14ef7571384a0205f13522e8.tar.xz | |
state: Make pointing to the backend using a phandle the only supported method
All other methods are broken for some time already: When starting the
kernel the state code rewrites the state node in the device tree and
replaced the "backend" property with a phandle - even when the target
can't be described as a phandle. Since using phandles is the nicest way
to point to the storage device anyway remove the other methods.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/barebox/barebox,state.rst | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/Documentation/devicetree/bindings/barebox/barebox,state.rst b/Documentation/devicetree/bindings/barebox/barebox,state.rst index 438cc434a2..e9daa65f1a 100644 --- a/Documentation/devicetree/bindings/barebox/barebox,state.rst +++ b/Documentation/devicetree/bindings/barebox/barebox,state.rst @@ -29,7 +29,8 @@ Required properties: * ``compatible``: should be ``barebox,state``; * ``magic``: A 32bit number used as a magic to identify the state -* ``backend``: describes where the data for this state is stored +* ``backend``: contains a phandle to the device/partition which holds the + actual state data. * ``backend-type``: should be ``raw`` or ``dtb``. Optional properties: @@ -77,19 +78,31 @@ Example:: magic = <0x27031977>; compatible = "barebox,state"; backend-type = "raw"; - backend = &eeprom, "partname:state"; + backend = &state_part; foo { - reg = <0x00 0x4>; - type = "uint32"; + reg = <0x00 0x4>; + type = "uint32"; default = <0x0>; }; bar { - reg = <0x10 0x4>; - type = "enum32"; + reg = <0x10 0x4>; + type = "enum32"; names = "baz", "qux"; - default = <1>; + default = <1>; + }; + }; + + &nand_flash { + partitions { + compatible = "fixed-partitions"; + #address-cells = <1>; + #size-cells = <1>; + state_part: state@10000 { + label = "state"; + reg = <0x10000 0x10000>; + }; }; }; |