On 09/02/2016 12:40 AM, Daniel Allred wrote: > If the ending portion of the DRAM is reserved for secure > world use, then u-boot cannot use this memory for its relocation > purposes. To prevent issues, we mark this memory as PRAM and this > prevents it from being used by u-boot at all. > > Signed-off-by: Daniel Allred <[email protected]> > --- > include/configs/ti_omap5_common.h | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/include/configs/ti_omap5_common.h > b/include/configs/ti_omap5_common.h > index e42c88e..70fdc6e 100644 > --- a/include/configs/ti_omap5_common.h > +++ b/include/configs/ti_omap5_common.h > @@ -146,6 +146,14 @@ > */ > #define TI_OMAP5_SECURE_BOOT_RESV_SRAM_SZ 0x1000 > #define CONFIG_SPL_TEXT_BASE 0x40301350 > +/* If no specific start address is specified then the secure EMIF > + * region will be placed at the end of the DDR space. In order to prevent > + * the main u-boot relocation from clobbering that memory and causing a > + * firewall violation, we tell u-boot that memory is protected RAM (PRAM) > + */ > +#if (CONFIG_TI_SECURE_EMIF_REGION_START == 0)
What about if we set the start address manually, what prevents u-boot from over-writing that memory? > +#define CONFIG_PRAM (CONFIG_TI_SECURE_EMIF_TOTAL_REGION_SIZE) >> 10 > +#endif > #else > /* > * For all booting on GP parts, the flash loader image is > _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
