Hello Rob,
On Fri, Sep 09, 2011 at 12:14:22AM -0500, Rob Herring wrote:
> > +i2c@83fc4000 { /* I2C2 on i.MX51 */
> > + compatible = "fsl,imx51-i2c", "fsl,imx1-i2c";
> > + reg = <0x83fc4000 0x4000>;
> > + interrupts = <63>;
> > +};
> > +
> > +i2c@70038000 { /* HS-I2C on i.MX51 */
>
> The mainline driver doesn't support the HS-I2C block does it?
>
> The high speed and "old" i2c blocks on MX51 are basically different
> blocks, so the compatible property should be different.
I stumbled about that recently, too and found in
arch/arm/plat-mxc/devices/platform-imx-i2c.c that the third device
description for imx51 is a normal "imx-i2c" one using
MX51_HSI2C_DMA_BASE_ADDR. So I concluded it's different but compatible.
board-mx51_babbage.c uses imx51_add_hsi2c but doesn't add a bus
description. So It might not attract attention if the driver doesn't
match the device.
Best regards
Uwe
--
Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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