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| author | Grant Likely <grant.likely@secretlab.ca> | 2011-06-21 20:59:34 +0400 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2011-06-21 21:02:37 +0400 |
| commit | 5de1540b7bc4c23470f86add1e517be41e7fefe2 (patch) | |
| tree | a1c18d1ec0b7009966f114565424e9bbb31da1c1 /Documentation/devicetree | |
| parent | 29d4f8a4974aacf46b028fa92f9dd3ffdba3e614 (diff) | |
| download | linux-5de1540b7bc4c23470f86add1e517be41e7fefe2.tar.xz | |
drivers/amba: create devices from device tree
Add a function to create amba_devices (i.e. primecell peripherals)
from device tree nodes. The device tree scanning is done by the
of_platform_populate() function which can call of_amba_device_create
based on a match table entry.
Nodes with a "arm,primecell-periphid" property can override the h/w
peripheral id value.
Based on the original work by Jeremy Kerr.
Signed-off-by: Jeremy Kerr <jeremy.kerr@canonical.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
[grant.likely: add Jeremy's original s-o-b line, changes from review
comments, and moved all code to drivers/of/platform.c]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/arm/primecell.txt | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/primecell.txt b/Documentation/devicetree/bindings/arm/primecell.txt new file mode 100644 index 000000000000..1d5d7a870ec7 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/primecell.txt @@ -0,0 +1,21 @@ +* ARM Primecell Peripherals + +ARM, Ltd. Primecell peripherals have a standard id register that can be used to +identify the peripheral type, vendor, and revision. This value can be used for +driver matching. + +Required properties: + +- compatible : should be a specific value for peripheral and "arm,primecell" + +Optional properties: + +- arm,primecell-periphid : Value to override the h/w value with + +Example: + +serial@fff36000 { + compatible = "arm,pl011", "arm,primecell"; + arm,primecell-periphid = <0x00341011>; +}; + |