From 5de1540b7bc4c23470f86add1e517be41e7fefe2 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Tue, 21 Jun 2011 10:59:34 -0600 Subject: 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 Acked-by: Linus Walleij Signed-off-by: Rob Herring Reviewed-by: Arnd Bergmann [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 --- Documentation/devicetree/bindings/arm/primecell.txt | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/primecell.txt (limited to 'Documentation/devicetree/bindings/arm/primecell.txt') 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>; +}; + -- cgit v1.2.3-59-g8ed1b