On Mon, Apr 15, 2013 at 03:13:16PM +0200, Eric Bénard wrote: > Hi, > > > I didn't follow the thread but dmacr is not specific to our boards : > $ grep -rn dmacr arch/arm/mach-imx/ > arch/arm/mach-imx/mach-mx27_3ds.c:446: .dmacr = 0x00020010, > arch/arm/mach-imx/mach-mx21ads.c:231: .dmacr = 0x00020008, > arch/arm/mach-imx/mach-mxt_td60.c:210: .dmacr = 0x00020010, > arch/arm/mach-imx/eukrea_mbimx27-baseboard.c:192: .dmacr = 0x00040060, > arch/arm/mach-imx/eukrea_mbimxsd25-baseboard.c:165: .dmacr = 0x00040060, > arch/arm/mach-imx/mach-mx27ads.c:241: .dmacr = 0x00020010, > arch/arm/mach-imx/mach-pca100.c:351: .dmacr = 0x00020010, > arch/arm/mach-imx/pcm970-baseboard.c:185: .dmacr = 0x00020010, > arch/arm/mach-imx/mach-mx25_3ds.c:173: .dmacr = 0x00020010, The reference manual has this about the dmacr register: The dynamic mode is recommend, and also the TM and HM reset value are recommend in the dynamic mode. The same recommendation is for the graphic DMA control. So maybe we should ask whether the boards really have to change this value or if the reset value is suitable for all. Sascha -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
