ARM: omap/dts: Add support for Gumstix Overo with Tobi expansion

PATCH New Florian Vaussard 3 participants 8 messages Aug 31, 2012 – Sep 10, 2012

Subsystems (4)

Device tree bindings Arm (32-bit) Arm sub-architectures OMAP2+ support

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Florian Vaussard

author

2012-08-31 16:06 UTC #0 lore raw

cover ARM: omap/dts: Add support for Gumstix Overo with Tobi expansion

The Gumstix Overo is a computer on module using an OMAP3 processor. This module must be plugged into an expansion board.

This patchset adds a first device tree support for the Overo, using the Tobi expansion board. The current support is able to boot and mount the rootfs from MMC, with a few extra features.

The first patch creates the device tree for both the Overo and the Tobi expansion board, and updates the dtb build target.

The second patch updates the omap/dts documentation.

This patchset applies on tony's tree [1], devel-dt branch.

Regards,

Florian

[1] http://git.kernel.org/?p=linux/kernel/git/tmlind/linux-omap.git;a=summary

Florian Vaussard (2):
ARM: omap/dts: Add support for Gumstix Overo with Tobi expansion
board
ARM: omap/dts: update the documentation

 .../devicetree/bindings/arm/omap/omap.txt          |    3 +
 arch/arm/boot/dts/omap3-overo.dtsi                 |   42 ++++++++++++++++++++
 arch/arm/boot/dts/omap3-tobi.dts                   |   35 ++++++++++++++++
 arch/arm/mach-omap2/Makefile.boot                  |    2 +-
 4 files changed, 81 insertions(+), 1 deletions(-)
 create mode 100644 arch/arm/boot/dts/omap3-overo.dtsi
 create mode 100644 arch/arm/boot/dts/omap3-tobi.dts

Signature · 1 line

1.7.5.4

Florian Vaussard

author

2012-08-31 16:06 UTC #1 lore raw

PATCH 1/2 ARM: omap/dts: Add support for Gumstix Overo with Tobi expansion board

The Gumstix Overo is a computer on module using an OMAP3 processor. This module must be plugged into an expansion board.

This patch adds a first device tree support for the Overo, using the Tobi expansion board. The current support is able to boot and mount the rootfs from MMC.

This patche also updates the omap3 dtb build target.

Currently working:
- mmc0 (on board microSD)
- i2c0 and i2c2 (i2c1 not used)
- led on GPIO

Signed-off-by Florian Vaussard <[email protected]>

---
 arch/arm/boot/dts/omap3-overo.dtsi |   42 ++++++++++++++++++++++++++++++++++++
 arch/arm/boot/dts/omap3-tobi.dts   |   35 ++++++++++++++++++++++++++++++
 arch/arm/mach-omap2/Makefile.boot  |    2 +-
 3 files changed, 78 insertions(+), 1 deletions(-)
 create mode 100644 arch/arm/boot/dts/omap3-overo.dtsi
 create mode 100644 arch/arm/boot/dts/omap3-tobi.dts

arch/arm/boot/dts/omap3-overo.dtsi new file +42 -0

new file mode 100644
index 0000000..d6cc5e2
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2012 Florian Vaussard, EPFL Mobots group
+ *
+ * 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.
+ */
+
+/*
+ * The Gumstix Overo must be combined with an expansion board.
+ */
+/dts-v1/;
+
+/include/ "omap3.dtsi"
+
+&i2c1 {
+	clock-frequency = <2600000>;
+
+	twl: twl at 48 {
+		reg = <0x48>;
+		interrupts = <7>; /* SYS_NIRQ cascaded to intc */
+		interrupt-parent = <&intc>;
+	};
+};
+
+/include/ "twl4030.dtsi"
+
+/* i2c2 pins are used for gpio */
+&i2c2 {
+	status = "disabled";
+};
+
+/* on board microSD slot */
+&mmc1 {
+	vmmc-supply = <&vmmc1>;
+	bus-width = <4>;
+};
+
+/* optional on board WiFi */
+&mmc2 {
+	bus-width = <4>;
+};

arch/arm/boot/dts/omap3-tobi.dts new file +35 -0

new file mode 100644
index 0000000..a13d12d
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2012 Florian Vaussard, EPFL Mobots group
+ *
+ * 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.
+ */
+
+/*
+ * Tobi expansion board is manufactured by Gumstix Inc.
+ */
+
+/include/ "omap3-overo.dtsi"
+
+/ {
+	model = "TI OMAP3 Gumstix Overo on Tobi";
+	compatible = "ti,omap3-tobi", "ti,omap3-overo", "ti,omap3";
+
+	leds {
+		compatible = "gpio-leds";
+		heartbeat {
+			label = "overo:red:gpio21";
+			gpios = <&gpio1 21 0>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+};
+
+&i2c3 {
+	clock-frequency = <100000>;
+};
+
+&mmc3 {
+	status = "disabled";
+};

arch/arm/mach-omap2/Makefile.boot +1 -1

index 6cf1c2d..18813ab 100644
@@ -3,7 +3,7 @@ params_phys-y		:= 0x80000100
 initrd_phys-y		:= 0x80800000
 
 dtb-$(CONFIG_SOC_OMAP2420)	+= omap2420-h4.dtb
-dtb-$(CONFIG_ARCH_OMAP3)	+= omap3-beagle.dtb omap3-evm.dtb
+dtb-$(CONFIG_ARCH_OMAP3)	+= omap3-beagle.dtb omap3-evm.dtb omap3-tobi.dtb
 dtb-$(CONFIG_ARCH_OMAP4)	+= omap4-panda.dtb omap4-pandaES.dtb
 dtb-$(CONFIG_ARCH_OMAP4)	+= omap4-var_som.dtb omap4-sdp.dtb
 dtb-$(CONFIG_SOC_OMAP5)		+= omap5-evm.dtb

Signature · 1 line

1.7.5.4

Florian Vaussard

author

2012-08-31 16:06 UTC #2 lore raw

PATCH 2/2 ARM: omap/dts: update the documentation

In reply to Florian Vaussard

Add the Tobi/Overo board to the list of supported platforms.

Signed-off-by Florian Vaussard <[email protected]>

---
 .../devicetree/bindings/arm/omap/omap.txt          |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

Documentation/devicetree/bindings/arm/omap/omap.txt +3 -0

index ccdd0e5..d0051a7 100644
@@ -36,6 +36,9 @@ Boards:
 - OMAP3 BeagleBoard : Low cost community board
   compatible = "ti,omap3-beagle", "ti,omap3"
 
+- OMAP3 Tobi with Overo : Commercial expansion board with daughter board
+  compatible = "ti,omap3-tobi", "ti,omap3-overo", "ti,omap3"
+
 - OMAP4 SDP : Software Developement Board
   compatible = "ti,omap4-sdp", "ti,omap4430"

Signature · 1 line

1.7.5.4

Tony Lindgren

maintainer

2012-09-06 20:52 UTC #3 lore raw

cover ARM: omap/dts: Add support for Gumstix Overo with Tobi expansion

In reply to Florian Vaussard

Quoted 7 lines · Florian Vaussard

The Gumstix Overo is a computer on module using an OMAP3 processor. This module must be plugged into an expansion board.
This patchset adds a first device tree support for the Overo, using the Tobi expansion board. The current support is able to boot and mount the rootfs from MMC, with a few extra features.

Quoted 6 lines

The first patch creates the device tree for both the Overo and the Tobi expansion board, and updates the dtb build target.
The second patch updates the omap/dts documentation.
This patchset applies on tony's tree [1], devel-dt branch.

Great, I'm assuming Benoit will pick this up as well.

Regards,

Tony

Quoted 23 lines

Regards,
Florian
[1] http://git.kernel.org/?p=linux/kernel/git/tmlind/linux-omap.git;a=summary
Florian Vaussard (2):
ARM: omap/dts: Add support for Gumstix Overo with Tobi expansion
board
ARM: omap/dts: update the documentation
 .../devicetree/bindings/arm/omap/omap.txt          |    3 +
 arch/arm/boot/dts/omap3-overo.dtsi                 |   42 ++++++++++++++++++++
 arch/arm/boot/dts/omap3-tobi.dts                   |   35 ++++++++++++++++
 arch/arm/mach-omap2/Makefile.boot                  |    2 +-
 4 files changed, 81 insertions(+), 1 deletions(-)
 create mode 100644 arch/arm/boot/dts/omap3-overo.dtsi
 create mode 100644 arch/arm/boot/dts/omap3-tobi.dts
Signature · 1 line
1.7.5.4

Florian Vaussard

author

2012-09-10 09:25 UTC #4 lore raw

cover ARM: omap/dts: Add support for Gumstix Overo with Tobi expansion

Le 06/09/2012 22:52, Tony Lindgren a ?crit :

Quoted 8 lines · Florian Vaussard

Quoted 7 lines
The Gumstix Overo is a computer on module using an OMAP3 processor. This module must be plugged into an expansion board.
This patchset adds a first device tree support for the Overo, using the Tobi expansion board. The current support is able to boot and mount the rootfs from MMC, with a few extra features.

Quoted 7 lines

Quoted 6 lines
The first patch creates the device tree for both the Overo and the Tobi expansion board, and updates the dtb build target.
The second patch updates the omap/dts documentation.
This patchset applies on tony's tree [1], devel-dt branch.
Great, I'm assuming Benoit will pick this up as well.

What is the status Benoit?

Thank you,
Florian

Benoit Cousson

2012-09-10 11:38 UTC #5 lore raw

cover ARM: omap/dts: Add support for Gumstix Overo with Tobi expansion

Quoted 12 lines · Florian Vaussard

Le 06/09/2012 22:52, Tony Lindgren a ?crit :
Quoted 11 lines · Florian Vaussard
Quoted 10 lines
The Gumstix Overo is a computer on module using an OMAP3 processor. This module must be plugged into an expansion board.
This patchset adds a first device tree support for the Overo, using the Tobi expansion board. The current support is able to boot and mount the rootfs from MMC, with a few extra features.
The first patch creates the device tree for both the Overo and the Tobi expansion board, and updates the dtb build target.

Quoted 6 lines

Quoted 4 lines
Quoted 3 lines
The second patch updates the omap/dts documentation.
This patchset applies on tony's tree [1], devel-dt branch.
Great, I'm assuming Benoit will pick this up as well.
What is the status Benoit?

Patches looks good to me. I just adding them right now in my for_3.7/dts tree.

I've just slightly changed the subjects:

Documentation: dt: Update the OMAP documentation with Overo/Toby
ARM: dts: OMAP3: Add support for Gumstix Overo with Tobi expansion board

If you want to give it a try, here is the branch that contains all the DTS series I already pulled. It includes your gpio-twl4030 patches as well.

git://git.kernel.org/pub/scm/linux/kernel/git/bcousson/linux-omap-dt.git for_3.7/dts

Regards,
Benoit

Florian Vaussard

author

2012-09-10 11:52 UTC #6 lore raw

cover ARM: omap/dts: Add support for Gumstix Overo with Tobi expansion

Quoted 7 lines

Quoted 2 lines
What is the status Benoit?
Patches looks good to me. I just adding them right now in my for_3.7/dts tree.
I've just slightly changed the subjects:

Quoted 7 lines

Documentation: dt: Update the OMAP documentation with Overo/Toby
ARM: dts: OMAP3: Add support for Gumstix Overo with Tobi expansion board
If you want to give it a try, here is the branch that contains all the DTS series I already pulled. It includes your gpio-twl4030 patches as well.
git://git.kernel.org/pub/scm/linux/kernel/git/bcousson/linux-omap-dt.git for_3.7/dts

Great, thank you! I will test your branch on my Overo ASAP.

Regards,
Florian

Florian Vaussard

author

2012-09-10 12:53 UTC #7 lore raw

cover ARM: omap/dts: Add support for Gumstix Overo with Tobi expansion

In reply to Benoit Cousson

Quoted 5 lines

Patches looks good to me. I just adding them right now in my for_3.7/dts tree.
I've just slightly changed the subjects:

Quoted 7 lines

Documentation: dt: Update the OMAP documentation with Overo/Toby
ARM: dts: OMAP3: Add support for Gumstix Overo with Tobi expansion board
If you want to give it a try, here is the branch that contains all the DTS series I already pulled. It includes your gpio-twl4030 patches as well.
git://git.kernel.org/pub/scm/linux/kernel/git/bcousson/linux-omap-dt.git for_3.7/dts

Boot as expected on Gumstix Overo with Tobi expansion board.

I will submit a patch to support the blue LED connected to the TWL4030, as the DTS support was merged in your branch.

And of course I will continue on getting features to work with devicetree for the Overo.

Regards,
Florian