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msm: 8974: Add qcom,msm-id entry to MSM8974-sim/rumi device trees

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The qcom,msm-id entry specifies the MSM chipset, platform and
hardware revision.  This is used by the Android dtbtool utility
to generate a table of device tree used in the boot.img.

The qcom,msm-id syntax is:
   qcom,msm-id = <chipset_id, platform_id, rev_id> [, <...>];

The entry can optionally be an array with variable number of
triplets indicating the device tree supports more than one
chipset/platform/hardware rev.

Note that the id's are hardware ID's reported by the hardware
and not commonly used literal ID's.  E.g. MSM8974's chipset ID
is 126, not 8974.

Change-Id: If65b40d6e947504cb4b07a36aa895f8ec6f9d300
Signed-off-by: David Ng <dave@codeaurora.org>
This commit is contained in:
David Ng 2012-07-27 16:55:39 -07:00 committed by Stephen Boyd
parent a09affe83a
commit 0c4a7ebaa6
3 changed files with 20 additions and 0 deletions
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18
Documentation/devicetree/bindings/arm/msm/msm-id.txt Normal file
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@ -0,0 +1,18 @@
* MSM-ID
The qcom,msm-id entry specifies the MSM chipset, platform and hardware revision.
It can optionally be an array of these to indicate multiple hardware that use
the same device tree. It is expected that the bootloader will use this
information at boot-up to decide which device tree to use when given multiple
device trees, some of which may not be compatible with the actual hardware. It
is the bootloader's responsibility to pass the correct device tree to the kernel.
Format:
It is expected that the qcom,msm-id entry be at the top level of the device
tree structure. The format of the entry is:
qcom,msm-id = <chipset_id, platform_id, rev_id> [, <c2, p2, r2> ...]
Example:
qcom,msm-id = <126 15 0>;

1
arch/arm/boot/dts/msm8974-rumi.dts
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@ -17,6 +17,7 @@
/ {
model = "Qualcomm MSM 8974 RUMI";
compatible = "qcom,msm8974-rumi", "qcom,msm8974";
qcom,msm-id = <126 15 0>;
timer {
clock-frequency = <5000000>;

1
arch/arm/boot/dts/msm8974-sim.dts
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@ -18,6 +18,7 @@
/ {
model = "Qualcomm MSM 8974 Simulator";
compatible = "qcom,msm8974-sim", "qcom,msm8974";
qcom,msm-id = <126 16 0>;
qcom,mdss_dsi@fd922800 {
qcom,mdss_dsi_sim_video {