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 d-allred@ti.com --- 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) +#define CONFIG_PRAM (CONFIG_TI_SECURE_EMIF_TOTAL_REGION_SIZE) >> 10 +#endif #else /* * For all booting on GP parts, the flash loader image is