Hi Nick, On Wed, Sep 11, 2024 at 01:02:12PM GMT, Nick Chan wrote: > Apple's earlier SoCs, like A7-A11, requires 32-bit writes for the serial > port. Otherwise, a SError happens when writing to UTXH (+0x20). This only > manifested in earlycon as reg-io-width in the device tree is consulted > for normal serial writes. > > Change the iotype of the port to UPIO_MEM32, to allow the serial port to > function on A7-A11 SoCs. This change does not appear to affect Apple M1 and > above. > > Reviewed-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx> > Reviewed-by: Neal Gompa <neal@xxxxxxxxx> > Tested-by: Janne Grunau <j@xxxxxxxxxx> > Signed-off-by: Nick Chan <towinchenmi@xxxxxxxxx> Reviewed-by: Andi Shyti <andi.shyti@xxxxxxxxxx> Andi
