On Sun, Jul 1, 2018 at 11:25 PM Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> wrote: > > On Fri, Jun 29, 2018 at 08:48:53PM -0700, Andrey Smirnov wrote: > > Add a macro containing all of the code needed to load and transfer > > control to BL31 ATF blob on i.MX8M. > > > > Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx> > > --- > > arch/arm/mach-imx/include/mach/atf.h | 63 ++++++++++++++++++++++++++++ > > 1 file changed, 63 insertions(+) > > create mode 100644 arch/arm/mach-imx/include/mach/atf.h > > > > diff --git a/arch/arm/mach-imx/include/mach/atf.h b/arch/arm/mach-imx/include/mach/atf.h > > new file mode 100644 > > index 000000000..0b5018459 > > --- /dev/null > > +++ b/arch/arm/mach-imx/include/mach/atf.h > > @@ -0,0 +1,63 @@ > > +#ifndef __IMX_ATF_H__ > > +#define __IMX_ATF_H__ > > + > > +#include <asm/system.h> > > + > > +#define MX8MQ_ATF_BL31_SIZE_LIMIT SZ_64K > > +#define MX8MQ_ATF_BL31_BASE_ADDR 0x00910000 > > +#define MX8MQ_ATF_BL33_BASE_ADDR 0x40200000 > > + > > +/** > > + * imx8mq_atf_load_bl31 - Load ATF BL31 blob and transfer contol to it > > + * > > + * @name: Name of the BL31 blob > > + * > > + * This macro: > > + > > + * 1. Copies built-in BL31 blob to an address i.MX8M's BL31 > > + * expects to be placed > > + * > > + * 2. Sets up temporary stack pointer for EL2, which is execution > > + * level that BL31 will drop us off at after it completes its > > + * initialization routine > > + * > > + * 3. Transfers control to BL31 > > + * > > + * NOTE: This has to be a macro in order delay the expansion of > > + * get_builtin_firmware(), otherwise it'll incorrectly interpret > > + * "name" literally > > You show a good reason why we should add the firmware name strings > to the image along with a function that iterates over them. How > to add the firmware name strings is already provided in the Kernels > firmware/Makefile. > OK, makes sense. I'll work on adding that feature as a part of v2. Thanks, Andrey Smirnov _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
