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-rw-r--r--Documentation/powerpc/booting-without-of.txt32
1 files changed, 32 insertions, 0 deletions
diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt
index 948f6417a40b..8675ebca2cfd 100644
--- a/Documentation/powerpc/booting-without-of.txt
+++ b/Documentation/powerpc/booting-without-of.txt
@@ -61,6 +61,7 @@ Table of Contents
r) Freescale Display Interface Unit
s) Freescale on board FPGA
t) Freescael MSI interrupt controller
+ u) Freescale General-purpose Timers Module
VII - Marvell Discovery mv64[345]6x System Controller chips
1) The /system-controller node
@@ -2907,6 +2908,37 @@ platforms are moved over to use the flattened-device-tree model.
interrupt-parent = <&mpic>;
};
+ u) Freescale General-purpose Timers Module
+
+ Required properties:
+ - compatible : should be
+ "fsl,<chip>-gtm", "fsl,gtm" for SOC GTMs
+ "fsl,<chip>-qe-gtm", "fsl,qe-gtm", "fsl,gtm" for QE GTMs
+ "fsl,<chip>-cpm2-gtm", "fsl,cpm2-gtm", "fsl,gtm" for CPM2 GTMs
+ - reg : should contain gtm registers location and length (0x40).
+ - interrupts : should contain four interrupts.
+ - interrupt-parent : interrupt source phandle.
+ - clock-frequency : specifies the frequency driving the timer.
+
+ Example:
+
+ timer@500 {
+ compatible = "fsl,mpc8360-gtm", "fsl,gtm";
+ reg = <0x500 0x40>;
+ interrupts = <90 8 78 8 84 8 72 8>;
+ interrupt-parent = <&ipic>;
+ /* filled by u-boot */
+ clock-frequency = <0>;
+ };
+
+ timer@440 {
+ compatible = "fsl,mpc8360-qe-gtm", "fsl,qe-gtm", "fsl,gtm";
+ reg = <0x440 0x40>;
+ interrupts = <12 13 14 15>;
+ interrupt-parent = <&qeic>;
+ /* filled by u-boot */
+ clock-frequency = <0>;
+ };
VII - Marvell Discovery mv64[345]6x System Controller chips
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