From: Igor Opaniuk Date: Fri, 27 Mar 2020 10:28:19 +0000 (+0200) Subject: imx8mm_evk: adjust dram size in case bl32 is used X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=47d430baed16b35a1afc5ae2ae8c468de8d21efd;p=u-boot.git imx8mm_evk: adjust dram size in case bl32 is used Adjust DRAM size in case BL32 secure payload is loaded (OP-TEE/Trusty), so during MMU initialization U-Boot won't touch this mem area. BL32 is loaded to the end of DRAM, bl32 payload size is read from rom_pointer[1]. This relates to the issue described in 59efa6b52b("imx8m: Fix MMU table issue for OPTEE memory"). Signed-off-by: Igor Opaniuk --- diff --git a/board/freescale/imx8mm_evk/imx8mm_evk.c b/board/freescale/imx8mm_evk/imx8mm_evk.c index c5fd940eeb..53ebb949df 100644 --- a/board/freescale/imx8mm_evk/imx8mm_evk.c +++ b/board/freescale/imx8mm_evk/imx8mm_evk.c @@ -15,7 +15,11 @@ DECLARE_GLOBAL_DATA_PTR; int dram_init(void) { - gd->ram_size = PHYS_SDRAM_SIZE; + /* rom_pointer[1] contains the size of TEE occupies */ + if (rom_pointer[1]) + gd->ram_size = PHYS_SDRAM_SIZE - rom_pointer[1]; + else + gd->ram_size = PHYS_SDRAM_SIZE; return 0; }