[PATCH V3 0/2] arm/dts: Add OMAP2420 SDP support

[PATCH V3 0/2] arm/dts: Add OMAP2420 SDP support

[Jon Hunter]

This series fixes the OMAP2 interrupt controller binding and adds support for
the OMAP2420H4 board. I have verified that the kernel boots with device-tree
on this board.

This series is based upon the linux-omap master branch (3.5-rc1).

V3: Rename OMAP2420 SDP to OMAP2420H4
V2: Correct typo in copyright date

Jon Hunter (2):
  arm/dts: OMAP2: Add support for OMAP2420H4 Board
  arm/dts: OMAP2: Fix interrupt controller binding

 arch/arm/boot/dts/omap2.dtsi       |    2 ++
 arch/arm/boot/dts/omap2420-sdp.dts |   20 ++++++++++++++++++++
 2 files changed, 22 insertions(+)
 create mode 100644 arch/arm/boot/dts/omap2420-sdp.dts

-- 
1.7.9.5

[PATCH V3 1/2] arm/dts: OMAP2: Add support for OMAP2420H4 Board

[Jon Hunter]

Simple DTS file for OMAP2420H4 board adding memory information to allow
device-tree testing on an OMAP2420. OMAP2420H4 board has 64MB of RAM.

Verified that kernel boots with DT using a simple RAMDISK file-system on
OMAP2420H4.

Signed-off-by: Jon Hunter <jon-hunter@ti.com>
---
 arch/arm/boot/dts/omap2420-sdp.dts |   20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 arch/arm/boot/dts/omap2420-sdp.dts

diff --git a/arch/arm/boot/dts/omap2420-sdp.dts b/arch/arm/boot/dts/omap2420-sdp.dts
new file mode 100644
index 0000000..2c292c9
--- /dev/null
+++ b/arch/arm/boot/dts/omap2420-sdp.dts
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+/dts-v1/;
+
+/include/ "omap2.dtsi"
+
+/ {
+	model = "TI OMAP2420 SDP board";
+	compatible = "ti,omap2-sdp", "ti,omap2420", "ti,omap2";
+
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x84000000>; /* 64 MB */
+	};
+};
-- 
1.7.9.5

[PATCH V3 2/2] arm/dts: OMAP2: Fix interrupt controller binding

[Jon Hunter]

When booting with device-tree on an OMAP2420H4, the kernel is hanging when
initialising the interrupts and following kernel dumps is seen ...

[    0.000000] ------------[ cut here ]------------
[    0.000000] WARNING: at arch/arm/mach-omap2/irq.c:271 omap_intc_of_init+0x50/0xb4()
[    0.000000] unable to get intc registers
[    0.000000] Modules linked in:
[    0.000000] [<c001befc>] (unwind_backtrace+0x0/0xf4) from [<c0040c34>] (warn_slowpath_common+0x4c/0x64)
[    0.000000] [<c0040c34>] (warn_slowpath_common+0x4c/0x64) from [<c0040ce0>] (warn_slowpath_fmt+0x30/0x40)
[    0.000000] [<c0040ce0>] (warn_slowpath_fmt+0x30/0x40) from [<c066b8a4>] (omap_intc_of_init+0x50/0xb4)
[    0.000000] [<c066b8a4>] (omap_intc_of_init+0x50/0xb4) from [<c0688b70>] (of_irq_init+0x144/0x288)
[    0.000000] [<c0688b70>] (of_irq_init+0x144/0x288) from [<c0663294>] (init_IRQ+0x14/0x1c)
[    0.000000] [<c0663294>] (init_IRQ+0x14/0x1c) from [<c06607fc>] (start_kernel+0x198/0x304)
[    0.000000] [<c06607fc>] (start_kernel+0x198/0x304) from [<80008044>] (0x80008044)
[    0.000000] ---[ end trace 1b75b31a2719ed1c ]---
[    0.000000] of_irq_init: children remain, but no parents

The OMAP2 interrupt controller binding is missing the number of interrupts and
interrupt controller register address. Adding these fixes the problem.

This is based upon latest linux-omap master (3.5-rc1) git tree.

Signed-off-by: Jon Hunter <jon-hunter@ti.com>
---
 arch/arm/boot/dts/omap2.dtsi |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/omap2.dtsi b/arch/arm/boot/dts/omap2.dtsi
index f2ab4ea..581cb08 100644
--- a/arch/arm/boot/dts/omap2.dtsi
+++ b/arch/arm/boot/dts/omap2.dtsi
@@ -44,6 +44,8 @@
 			compatible = "ti,omap2-intc";
 			interrupt-controller;
 			#interrupt-cells = <1>;
+			ti,intc-size = <96>;
+			reg = <0x480FE000 0x1000>;
 		};
 
 		uart1: serial@4806a000 {
-- 
1.7.9.5

Re: [PATCH V3 0/2] arm/dts: Add OMAP2420 SDP support

[Jon Hunter]

On 06/12/2012 07:10 PM, Jon Hunter wrote:
> This series fixes the OMAP2 interrupt controller binding and adds support for
> the OMAP2420H4 board. I have verified that the kernel boots with device-tree
> on this board.

Oops! Forgot to change SDP to H4 in the $SUBJECT. However, should be
correct elsewhere.

Jon

> This series is based upon the linux-omap master branch (3.5-rc1).
> 
> V3: Rename OMAP2420 SDP to OMAP2420H4
> V2: Correct typo in copyright date
> 
> Jon Hunter (2):
>   arm/dts: OMAP2: Add support for OMAP2420H4 Board
>   arm/dts: OMAP2: Fix interrupt controller binding
> 
>  arch/arm/boot/dts/omap2.dtsi       |    2 ++
>  arch/arm/boot/dts/omap2420-sdp.dts |   20 ++++++++++++++++++++
>  2 files changed, 22 insertions(+)
>  create mode 100644 arch/arm/boot/dts/omap2420-sdp.dts
> 

Re: [PATCH V3 0/2] arm/dts: Add OMAP2420 SDP support

[Jon Hunter]

On 06/12/2012 07:13 PM, Jon Hunter wrote:
> 
> On 06/12/2012 07:10 PM, Jon Hunter wrote:
>> This series fixes the OMAP2 interrupt controller binding and adds support for
>> the OMAP2420H4 board. I have verified that the kernel boots with device-tree
>> on this board.
> 
> Oops! Forgot to change SDP to H4 in the $SUBJECT. However, should be
> correct elsewhere.

Ok, scratch this version. I have forgotten to change the dts file too.
Sorry for all the noise, I shouldn't be trying to cram this in at the
end of the day!

Jon

>> This series is based upon the linux-omap master branch (3.5-rc1).
>>
>> V3: Rename OMAP2420 SDP to OMAP2420H4
>> V2: Correct typo in copyright date
>>
>> Jon Hunter (2):
>>   arm/dts: OMAP2: Add support for OMAP2420H4 Board
>>   arm/dts: OMAP2: Fix interrupt controller binding
>>
>>  arch/arm/boot/dts/omap2.dtsi       |    2 ++
>>  arch/arm/boot/dts/omap2420-sdp.dts |   20 ++++++++++++++++++++
>>  2 files changed, 22 insertions(+)
>>  create mode 100644 arch/arm/boot/dts/omap2420-sdp.dts
>>