Hello Florian, Thank you for your feedback! > Subject: Re: [PATCH/RFC v2] ARM: shmobile: defconfig: Enable LPAE > > On 04/25/2018 09:14 AM, Fabrizio Castro wrote: > > On iWave's iwg20m DDR1 512MB memory cannot be accessed with 32-bit > > addresses, hence we need LPAE. > > > > Signed-off-by: Biju Das <biju.das@xxxxxxxxxxxxxx> > > Signed-off-by: Fabrizio Castro <fabrizio.castro@xxxxxxxxxxxxxx> > > --- > > This information is mentioned in the "RZ/G Series User’s Manual: Hardware", > > Chapter 2, Area Map. Is this patch going to break the functionality of other > > boards? Comments welcome. > > LPAE is not supported by all Cortex-A class cores, for instance > Cortex-A9 does not support LPAE, if you have boards using such cores, > then this would result in a kernel that would not boot on these > platforms. Can that be a problem with the shmobile_defconfig? It definitely is, therefore I am going to drop this patch as it would break things. Best regards, Fab > -- > Florian Renesas Electronics Europe Ltd, Dukes Meadow, Millboard Road, Bourne End, Buckinghamshire, SL8 5FH, UK. Registered in England & Wales under Registered No. 04586709.
