Add the explanation and a sample of RapidIO DTS sector to the document of booting-without-of.txt file.
Signed-off-by: Zhang Wei <[EMAIL PROTECTED]> --- Documentation/powerpc/booting-without-of.txt | 41 ++++++++++++++++++++++++++ 1 files changed, 41 insertions(+), 0 deletions(-) diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt index b49ce16..359c899 100644 --- a/Documentation/powerpc/booting-without-of.txt +++ b/Documentation/powerpc/booting-without-of.txt @@ -1729,6 +1729,47 @@ platforms are moved over to use the flattened-device-tree model. More devices will be defined as this spec matures. + k) RapidIO + + Required properties: + + - device_type : Should be "rapidio" + - compatible : Should be "fsl,rapidio-v0.0" or "fsl,rapidio-v1.0" + and so on. The version number is got from IP Block Revision + Register of RapidIO controller. + - #address-cells : Address representation for "rapidio" devices. + This field represents the number of cells needed to represent + the RapidIO address of the registers. For supporting more than + 36-bits RapidIO address, this field should be <2>. + See 1) above for more details on defining #address-cells. + - reg : Offset and length of the register set for the device + - ranges : Should be defined as specified in 1) to describe the + translation of addresses for memory mapped RapidIO memory + space. + - interrupt-parent : the phandle for the interrupt controller that + services interrupts for this device. + - interrupts : <a b> where a is the interrupt number and b is a + field that represents an encoding of the sense and level + information for the interrupt. This should be encoded based on + the information in section 2) depending on the type of interrupt + controller you have. For this sector, interrupts order should be + <err_irq bell_outb_irq bell_inb_irq msg1_tx_irq msg1_rx_irq + msg2_tx_irq msg2_rx_irq ... msgN_tx_irq msgN_rx_irq>. + + Example: + + [EMAIL PROTECTED] + device_type = "rapidio"; + compatible = "fsl,rapidio-v1.0"; + #address-cells = <2>; + reg = <c0000 20000>; + ranges = <0 0 c0000000 20000000>; + interrupt-parent = <&mpic>; + /* err_irq bell_outb_irq bell_inb_irq msg1_tx_irq msg1_rx_irq + msg2_tx_irq msg2_rx_irq */ + interrupts = <30 2 31 2 32 2 35 2 36 2 37 2 38 2>; + }; + VII - Specifying interrupt information for devices =================================================== -- 1.5.1 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/