[boot-wrapper PATCH] Makefile: Change COUNTER_FREQ to 100 MHz

[Mark Rutland]

Hi Peter,

On Tue, Mar 01, 2022 at 11:18:54AM +0000, Peter Hoyes wrote:
> On 15/02/2022 12:29, Mark Rutland wrote:
> > On Tue, Feb 15, 2022 at 11:54:18AM +0000, Peter Hoyes wrote:
> > > From: Peter Hoyes <Peter.Hoyes at arm.com>
> > > 
> > > Older Arm Fast Models (AEM < RevC) had a base frequency of 24 MHz. but
> > > the RevC base models use 100 MHz. There is not a robust method of
> > > determining the configured base frequency at runtime, so update
> > > COUNTER_FREQ to be 100 MHz.
> > This looks right to me; if no-one shouts in the next day or two I'll apply
> > this.
> > 
> > In future, if we need this to be configurable, I reckon we can either add a
> > specific option for this or a more general "platform" option which can also
> > know about other things which aren't in the DTB.
> > 
> > Thanks,
> > Mark.
> 
> I don't think there have been any further comments - would it be possible to
> apply this?

Apologies for the extremely long delay; I've applied this and pushed it out
now.

Thanks,
Mark.

> Peter
> 
> > > Signed-off-by: Peter Hoyes <Peter.Hoyes at arm.com>
> > > ---
> > >   Makefile.am | 2 +-
> > >   1 file changed, 1 insertion(+), 1 deletion(-)
> > > 
> > > diff --git a/Makefile.am b/Makefile.am
> > > index 08e304a..6ebece2 100644
> > > --- a/Makefile.am
> > > +++ b/Makefile.am
> > > @@ -13,7 +13,7 @@ SCRIPT_DIR	:= $(top_srcdir)/scripts
> > >   PHYS_OFFSET	:= $(shell perl -I $(SCRIPT_DIR) $(SCRIPT_DIR)/findmem.pl $(KERNEL_DTB))
> > >   UART_BASE	:= $(shell perl -I $(SCRIPT_DIR) $(SCRIPT_DIR)/findbase.pl $(KERNEL_DTB) 0 'arm,pl011')
> > >   SYSREGS_BASE	:= $(shell perl -I $(SCRIPT_DIR) $(SCRIPT_DIR)/findbase.pl $(KERNEL_DTB) 0 'arm,vexpress-sysreg' 2> /dev/null)
> > > -COUNTER_FREQ	:= 24000000
> > > +COUNTER_FREQ	:= 100000000
> > >   CPU_IDS		:= $(shell perl -I $(SCRIPT_DIR) $(SCRIPT_DIR)/findcpuids.pl $(KERNEL_DTB))
> > >   NR_CPUS         := $(shell echo $(CPU_IDS) | tr ',' ' ' | wc -w)
> > > -- 
> > > 2.25.1
> > >