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authorSascha Hauer <s.hauer@pengutronix.de>2015-05-06 08:56:43 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2015-05-06 08:56:43 +0200
commit461f8cfc7ea788428240271818363333ceff5c4c (patch)
treea3d6e3737c203ea29f8db2a6ddaadc326247376c /dts/Bindings/mips/img
parent6345d37ae50c3ac8dd0e6176bc846fe211cbddd4 (diff)
downloadbarebox-461f8cfc7ea788428240271818363333ceff5c4c.tar.gz
barebox-461f8cfc7ea788428240271818363333ceff5c4c.tar.xz
dts: update to v4.1-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/mips/img')
-rw-r--r--dts/Bindings/mips/img/pistachio.txt42
1 files changed, 42 insertions, 0 deletions
diff --git a/dts/Bindings/mips/img/pistachio.txt b/dts/Bindings/mips/img/pistachio.txt
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+++ b/dts/Bindings/mips/img/pistachio.txt
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+Imagination Pistachio SoC
+=========================
+
+Required properties:
+--------------------
+ - compatible: Must include "img,pistachio".
+
+CPU nodes:
+----------
+A "cpus" node is required. Required properties:
+ - #address-cells: Must be 1.
+ - #size-cells: Must be 0.
+A CPU sub-node is also required for at least CPU 0. Since the topology may
+be probed via CPS, it is not necessary to specify secondary CPUs. Required
+propertis:
+ - device_type: Must be "cpu".
+ - compatible: Must be "mti,interaptiv".
+ - reg: CPU number.
+ - clocks: Must include the CPU clock. See ../../clock/clock-bindings.txt for
+ details on clock bindings.
+Example:
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu0: cpu@0 {
+ device_type = "cpu";
+ compatible = "mti,interaptiv";
+ reg = <0>;
+ clocks = <&clk_core CLK_MIPS>;
+ };
+ };
+
+
+Boot protocol:
+--------------
+In accordance with the MIPS UHI specification[1], the bootloader must pass the
+following arguments to the kernel:
+ - $a0: -2.
+ - $a1: KSEG0 address of the flattened device-tree blob.
+
+[1] http://prplfoundation.org/wiki/MIPS_documentation