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/ | _______________________________________________ devicetree-discuss mailing list devicetree-discuss@lists.ozlabs.org https://lists.ozlabs.org/listinfo/devicetree-discuss