Hi, On Sat, Dec 22, 2018 at 04:28:48PM +0200, Aaro Koskinen wrote: > After this patch, the external MMC card is not getting detected on N900 > test/dev boards (different mechanics) unless I comment out the cd-gpios > in the DTS. > > It seems on N900 we had these GPIOs defined to 0 by accident in > pdata-quicks, and that somehow allowed the external slot MMC work. > > Anyway, do we have any other option than maintaining a different DTS for > the test/dev boards? So far, the current DTS is intended to work on both > (e.g. we have Ethernet in there too). OK, found a solution. :-) A. diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts index 182a53991c90..3ffb21d15882 100644 --- a/arch/arm/boot/dts/omap3-n900.dts +++ b/arch/arm/boot/dts/omap3-n900.dts @@ -813,7 +813,9 @@ bus-width = <4>; /* For debugging, it is often good idea to remove this GPIO. It means you can remove back cover (to reboot by removing - battery) and still use the MMC card. */ + battery) and still use the MMC card. NOTE: On the early development + boards, this GPIO is controlled by the second switch behind the USB + port. */ cd-gpios = <&gpio6 0 GPIO_ACTIVE_HIGH>; /* 160 */ };
