path: root/Documentation/devicetree/bindings/arm/primecell.txt
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authorGrant Likely <grant.likely@secretlab.ca>2011-06-21 10:59:34 -0600
committerGrant Likely <grant.likely@secretlab.ca>2011-06-21 11:02:37 -0600
commit5de1540b7bc4c23470f86add1e517be41e7fefe2 (patch)
treea1c18d1ec0b7009966f114565424e9bbb31da1c1 /Documentation/devicetree/bindings/arm/primecell.txt
parentdt: add of_platform_populate() for creating device from the device tree (diff)
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>
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+* 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
+serial@fff36000 {
+ compatible = "arm,pl011", "arm,primecell";
+ arm,primecell-periphid = <0x00341011>;