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2016-09-15ARM: dts: am57xx-beagle-x15-common: Fix wrong pinctrl selection for mmc2Nishanth Menon
Commit d20f997b4d1f ("ARM: dts: am57xx-beagle-x15: Remove pinmux configurations for erratum i869") fat fingered a change in which basically replaced mmc2_pinctrl_default with mmc1_pinctrl_default. And kernel dutifully reports conflict of usage. [...] pinctrl-single 4a003400.pinmux: pin 4a00376c.0 already requested by 4809c000.mmc; cannot claim for 480b4000.mmc pinctrl-single 4a003400.pinmux: pin-219 (480b4000.mmc) status -22 pinctrl-single 4a003400.pinmux: could not request pin 219 (4a00376c.0) from group mmc1_pins_default on device pinctrl-single omap_hsmmc 480b4000.mmc: Error applying setting, reverse things back omap_hsmmc 480b4000.mmc: could not initialize pin control state [...] But, thanks to the fact that we were in fact setting all the muxes in U-Boot, all the MMC devices were still properly detected. Fix the typo. Fixes: d20f997b4d1f ("ARM: dts: am57xx-beagle-x15: Remove pinmux configurations for erratum i869") Reported-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Nishanth Menon <nm@ti.com> [tony@atomide.com: removed timestamps and wrapped description] Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-09-13ARM: dts: am57xx-beagle-x15: Add support for rev B1Nishanth Menon
Latest update to the BeagleBoard-X15 platform (revision B1)[1] updates for allowing UHS SD cards to function with the split of supply to SD card from a dedicated LDO. As a result of this, AM57xx BeagleBoard-X15 now uses gpio2_30 instead of gpio6_28 for HDMI because HDMI_LS_OE should now be switched from GPIO6_28(Y9) to GPIO2_30 (AG8) to avoid a 1.8V GPIO toggling a 3.3V SoC input when the SD card is in UHS 1.8V mode. NOTE: For UHS mode to function, we need full fledged IODelay support in kernel to be functional. IODelay support is yet to be added. Further, It does not make much sense to spin off a new board compatible flag since there is no real functional benefit for the same. Note: Even though production version is supposed to be B1, there is over ~200 boards of previous version (A2)[2] out there which continue to get supported with the existing dts file (to maintain compatibility with existing bootloaders for A2) and the production board is now supported as revb1. [1] https://github.com/beagleboard/beagleboard-x15/blob/master/BEAGLEBOARD_X15_REV_B1.pdf [2] http://marc.info/?l=linux-arm-kernel&m=147273929820708&w=2 Tested-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>