From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from kuber.nabble.com (kuber.nabble.com [216.139.236.158]) by ozlabs.org (Postfix) with ESMTP id D2127DDE04 for ; Sat, 8 Nov 2008 09:53:02 +1100 (EST) Received: from isper.nabble.com ([192.168.236.156]) by kuber.nabble.com with esmtp (Exim 4.63) (envelope-from ) id 1KyaCI-0007gW-0a for linuxppc-dev@ozlabs.org; Fri, 07 Nov 2008 14:52:58 -0800 Message-ID: <20389723.post@talk.nabble.com> Date: Fri, 7 Nov 2008 14:52:58 -0800 (PST) From: wael showair To: linuxppc-dev@ozlabs.org Subject: How to add my device node in the device tree MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi all, My board processor is MPC8555, it is an AMC board. i want to add a node for my device to the device tree. simply here is the old device tree : *************************************** / { model = "MPC8555AMC"; compatible = "mpc85xx"; #address-cells = <1>; #size-cells = <1>; cpus { #cpus = <1>; #address-cells = <1>; #size-cells = <0>; PowerPC,8555@0 { device_type = "cpu"; reg = <0>; d-cache-line-size = <20>; // 32 bytes i-cache-line-size = <20>; // 32 bytes d-cache-size = <8000>; // L1, 32K i-cache-size = <8000>; // L1, 32K timebase-frequency = <0>; // 33 MHz, from uboot bus-frequency = <0>; // From uboot clock-frequency = <0>; // From uboot 32-bit; linux,boot-cpu; }; }; memory { device_type = "memory"; reg = <00000000 20000000>; }; soc8555@e0000000 { #address-cells = <1>; #size-cells = <1>; #interrupt-cells = <2>; device_type = "soc"; ranges = <0 e0000000 00100000>; reg = ; // CCSRBAR 1M bus-frequency = <0>; i2c@3000 { device_type = "i2c"; compatible = "fsl-i2c"; reg = <3000 100>; interrupts = <1b 2>; interrupt-parent = <40000>; dfsrr; }; mdio@24520 { #address-cells = <1>; #size-cells = <0>; device_type = "mdio"; compatible = "gianfar"; reg = <24520 20>; linux,phandle = <24520>; ethernet-phy@10 { linux,phandle = <2452010>; interrupt-parent = <40000>; interrupts = <30 1>; reg = <10>; device_type = "ethernet-phy"; }; ethernet-phy@11 { linux,phandle = <2452011>; interrupt-parent = <40000>; interrupts = <30 1>; reg = <11>; device_type = "ethernet-phy"; }; }; ethernet@24000 { #address-cells = <1>; #size-cells = <0>; device_type = "network"; model = "TSEC"; compatible = "gianfar"; reg = <24000 1000>; mac-address = [ 00 E0 0C 00 73 00 ]; interrupts = ; interrupt-parent = <40000>; phy-handle = <2452010>; }; ethernet@25000 { #address-cells = <1>; #size-cells = <0>; device_type = "network"; model = "TSEC"; compatible = "gianfar"; reg = <25000 1000>; mac-address = [ 00 E0 0C 00 73 01 ]; interrupts = <13 2 14 2 18 2>; interrupt-parent = <40000>; phy-handle = <2452011>; }; serial@4500 { device_type = "serial"; compatible = "ns16550"; reg = <4500 100>; clock-frequency = <0>; interrupts = <1a 2>; interrupt-parent = <40000>; }; pic@40000 { linux,phandle = <40000>; clock-frequency = <0>; interrupt-controller; #address-cells = <0>; #interrupt-cells = <2>; reg = <40000 40000>; built-in; compatible = "chrp,open-pic"; device_type = "open-pic"; big-endian; interrupts = < 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 2 a 2 b 2 c 2 d 2 e 2 f 2 10 2 11 2 12 2 13 2 14 2 15 2 16 2 17 2 18 2 19 2 1a 2 1b 2 1c 2 1d 2 1e 2 1f 2 20 2 21 2 22 2 23 2 24 2 25 2 26 2 27 2 28 2 29 2 2a 2 2b 2 2c 2 2d 2 2e 2 2f 2 30 1 >; interrupt-parent = <40000>; }; }; }; **************************************** i want to add a node for the DMA in this tree. the PIC PDF tells me that DMA channel 0 is connected to Internal interrupt number 4 so i add the following node just before the pic node & after the serial node: ****************************************** DMA@21100 { reg = <21100 44>; interrupts = <4 2>; interrupt-parent = <40000>; }; ****************************************** but when i called the of_find_node_by_name(NULL, "DMA"); unfortunately it returns NULL & i cant the a node with such a name. i have checked this by printing all of the nodes in my tree which are: cpus PowerPC,8555 memory soc8555 i2c mdio ... serial pic choosen choosen without a node of name DMA for sure. so what else should i do to create this node? thanks in advance for your help. -- View this message in context: http://www.nabble.com/How-to-add-my-device-node-in-the-device-tree-tp20389723p20389723.html Sent from the linuxppc-dev mailing list archive at Nabble.com.