On Wednesday, November 27, 2013 11:33 AM, Chris Ruehl wrote:
On Wednesday, November 20, 2013 04:01 AM, Linus Walleij wrote:
On Mon, Nov 11, 2013 at 7:19 PM, Markus Pargmann<mpa@xxxxxxxxxxxxxx>
wrote:
Support gpio devicetree subnodes to allow a more detailed DT hardware
description.
Signed-off-by: Markus Pargmann<mpa@xxxxxxxxxxxxxx>
Looks good to me.
Tentatively applied this, the DT people may want to say something
about this.
Yours,
Linus Walleij
--
Hi,
I tried the new configuration but the kernel oops when probing the
dm9000 caused by insufficient resources more likely the real reason
that somehow the gpio6: triggers a problem
[ 0.115718] irq: no irq domain found for
/soc/aipi@10000000/iomuxc@10015000/gpio@10015500 !
[ 0.115768] ------------[ cut here ]------------
[ 0.115853] WARNING: CPU: 0 PID: 1 at drivers/of/platform.c:171
of_device_alloc+0x110/0x15c()
[ 0.117824] ---[ end trace 0e10ae727e6e0ab1 ]---
[ 0.121236] Failed to request board ext/int gpios
[ 0.152712] imx27-pinctrl 10015000.iomuxc: initialized IMX pinctrl driver
iomuxc: iomuxc@10015000 {
compatible = "fsl,imx27-iomuxc";
reg = <0x10015000 0x600>;
#address-cells = <1>;
#size-cells = <1>;
ranges;
gpio1: gpio@10015000 {
compatible = "fsl,imx27-gpio", "fsl,imx21-gpio";
reg = <0x10015000 0x100>;
interrupts = <8>;
gpio-controller;
#gpio-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
};
...
gpio6: gpio@10015500 {
compatible = "fsl,imx27-gpio", "fsl,imx21-gpio";
reg = <0x10015500 0x100>;
interrupts = <8>;
gpio-controller;
#gpio-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
};
};
More info
board-dts-definition for the dm9000 which trigger the oops
/ {
model = "GTSYS IR module";
compatible = "gtsys,mx27gtsir","fsl,imx27";
memory {
reg = <0xa0000000 0x10000000>;
};
enet1: ethernet@d4000000 {
compatible = "davicom,dm9000";
#address-cells = <1>;
#size-cells = <1>;
reg = <0xd4000000 0x2
0xd4000004 0x2>;
interrupt-parent = <&gpio6>;
interrupts = <18 2>; /* DM9000IRQ IMX_GPIO_NR(6,18) 2
= high edge trigger */
local-mac-address = [00 00 00 00 00 00];
davicom,no-eeprom;
status = "okay";
};
Kernel Linux version 3.13.0-rc1-next-20131125-dirty
With kind regards
Chris
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