On Wed, 1 Jan 2025 16:58:28 +0800 Chen-Yu Tsai <wens@xxxxxxxx> wrote: Hi, > On Thu, Dec 19, 2024 at 6:58 PM Stefan Gloor <code@xxxxxxxxxxxxxxx> wrote: > > > > Add explicit alias for MMC devices, so that (e)MMC and micro SD cards > > are enumerated consistently. This should fix spurious boot failures when > > specifying a hard-coded root partition, e.g., mmcblk0p2. > > IIRC we have chosen against adding explicit MMC aliases for the sunxi > platforms. Please try using UUID= or PARTUUID= for root partition > references. Yes, and LABEL= would be another way. Alternatively you could use U-Boot's DT when booting the board. U-Boot will add those aliases during build time (because it needs them for its own purposes), and by using $fdtcontroladdr (instead of $fdt_addr_r, on the bootz command line) you get this for free, and even save yourself from loading some DT. We sync the DTs regularly from the kernel to U-Boot now, and at the moment they are identical between the kernel and U-Boot, so you don't lose anything. Cheers, Andre > > Link: https://github.com/linux-sunxi/meta-sunxi/pull/431 > > Signed-off-by: Stefan Gloor <code@xxxxxxxxxxxxxxx> > > --- > > arch/arm/boot/dts/allwinner/sun7i-a20-olinuxino-micro.dts | 2 ++ > > 1 file changed, 2 insertions(+) > > > > diff --git a/arch/arm/boot/dts/allwinner/sun7i-a20-olinuxino-micro.dts b/arch/arm/boot/dts/allwinner/sun7i-a20-olinuxino-micro.dts > > index a1b89b2a2999..9cd1eb690134 100644 > > --- a/arch/arm/boot/dts/allwinner/sun7i-a20-olinuxino-micro.dts > > +++ b/arch/arm/boot/dts/allwinner/sun7i-a20-olinuxino-micro.dts > > @@ -60,6 +60,8 @@ aliases { > > serial2 = &uart7; > > spi0 = &spi1; > > spi1 = &spi2; > > + mmc0 = &mmc0; > > + mmc1 = &mmc3; > > }; > > > > chosen { > > -- > > 2.45.2 > > > > >
