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Diffstat (limited to 'Documentation/powerpc')
| -rw-r--r-- | Documentation/powerpc/booting-without-of.txt | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt index a599f1a8a145..c36dcd2fbdc4 100644 --- a/Documentation/powerpc/booting-without-of.txt +++ b/Documentation/powerpc/booting-without-of.txt @@ -2017,6 +2017,44 @@ platforms are moved over to use the flattened-device-tree model. fsl,cpm-command = <2e600000>; }; + m) Chipselect/Local Bus + + Properties: + - name : Should be localbus + - #address-cells : Should be either two or three. The first cell is the + chipselect number, and the remaining cells are the + offset into the chipselect. + - #size-cells : Either one or two, depending on how large each chipselect + can be. + - ranges : Each range corresponds to a single chipselect, and cover + the entire access window as configured. + + Example: + localbus@f0010100 { + compatible = "fsl,mpc8272ads-localbus", + "fsl,mpc8272-localbus", + "fsl,pq2-localbus"; + #address-cells = <2>; + #size-cells = <1>; + reg = <f0010100 40>; + + ranges = <0 0 fe000000 02000000 + 1 0 f4500000 00008000>; + + flash@0,0 { + compatible = "jedec-flash"; + reg = <0 0 2000000>; + bank-width = <4>; + device-width = <1>; + }; + + board-control@1,0 { + reg = <1 0 20>; + compatible = "fsl,mpc8272ads-bcsr"; + }; + }; + + More devices will be defined as this spec matures. VII - Specifying interrupt information for devices |