On Sun, May 20, 2018 at 01:15:38PM +0300, Dmitry Osipenko wrote: > Implement L2 cache initialization firmware callback that should be invoked > early in boot to enable cache HW. > > Signed-off-by: Dmitry Osipenko <[email protected]> > --- > arch/arm/firmware/trusted_foundations.c | 23 +++++++++++++++++++++++ > 1 file changed, 23 insertions(+) > > diff --git a/arch/arm/firmware/trusted_foundations.c > b/arch/arm/firmware/trusted_foundations.c > index 3fb1b5a1dce9..198ce5c75ca0 100644 > --- a/arch/arm/firmware/trusted_foundations.c > +++ b/arch/arm/firmware/trusted_foundations.c > @@ -18,8 +18,13 @@ > #include <linux/init.h> > #include <linux/of.h> > #include <asm/firmware.h> > +#include <asm/outercache.h> > #include <asm/trusted_foundations.h> > > +#define TF_CACHE_MAINT 0xfffff100 > + > +#define TF_CACHE_INIT 1 > + > #define TF_SET_CPU_BOOT_ADDR_SMC 0xfffff200 > > #define TF_CPU_PM 0xfffffffc > @@ -63,9 +68,27 @@ static int tf_prepare_idle(void) > return 0; > } > > +#ifdef CONFIG_CACHE_L2X0 > +static void tf_cache_write_sec(unsigned long val, unsigned int reg) > +{ > + pr_warn("%s: Ignoring write [0x%x]: 0x%08lx\n", __func__, reg, val);
Why at warning level? Is this some issue that the user needs to be warned about? -- RMK's Patch system: http://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line in suburbia: sync at 8.8Mbps down 630kbps up According to speedtest.net: 8.21Mbps down 510kbps up
