On Tue, 19 Nov 2013 18:02:19 +0100 (CET) Benoît Thébaudeau <benoit.thebaud...@advansee.com> wrote: > I use the i.MX515, and the I²C worked fine at some point in mainline > U-Boot. If it does not work for you now, it's either because of a > software regression, or because of some board-specific issue, e.g. > pads. SION may have to be set for I²C.
Hi Benoît, By "SION may have to be set for I²C", do you mean that IOMUX_CONFIG_SION might have to be defined and ORed in the MX51 pads in arch/arm/include/asm/arch-mx5/iomux-mx51.h just is it is set in arch/arm/include/asm/arch-mx5/iomux-mx53.h, for example: MX53_PAD_KEY_COL3__I2C2_SCL = IOMUX_PAD(0x364, 0x03C, 4 | IOMUX_CONFIG_SION, 0x81C, 0, NO_PAD_CTRL), How do I know in which ones do I have to set SION? I've added some pad defines in the mx51 file, needed for LCD bringup, and I hope I did it the right way -at least I followed the RM as close as I could and Marek was of tremendous help here, but I didn't even know about that SION thing while doing that. I'd gladly try it out, before following Fabio's advice and try to merge the patches to the u-boot-imx tree -tried already but they don't apply cleanly, I'll have to do it when I get more free time, most likely during the weekend. Regards Konstantinos
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