From e3cdc2cbb1b1a773b98bd39885c9be6b809375fb Mon Sep 17 00:00:00 2001 From: Chia-Wei Wang Date: Wed, 27 Oct 2021 14:17:35 +0800 Subject: [PATCH] configs: ast2600: Boot kernel FIT in DRAM AST2600 leverages the FIT hash/signature verification to fulfill secure boot trust chain. To improve the performance and save SW code size for those crypto operations, the two HW crypto engine, HACE and ACRY, are enabled. However, both of the engines can only access to data stored in DRAM space. Therefore, we need to move the FIT image into DRAM before the booting. This patch update the CONFIG_BOOTCOMMAND to execute the pre-defined ENV variable which consists of FIT image copy to memory and booting. Signed-off-by: Chia-Wei Wang --- configs/evb-ast2600_defconfig | 2 +- include/configs/evb_ast2600.h | 7 +++++++ 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/configs/evb-ast2600_defconfig b/configs/evb-ast2600_defconfig index dcf8dea..0f03a72 100644 --- a/configs/evb-ast2600_defconfig +++ b/configs/evb-ast2600_defconfig @@ -27,7 +27,7 @@ CONFIG_SPL_LOAD_FIT_ADDRESS=0x10000 CONFIG_USE_BOOTARGS=y CONFIG_BOOTARGS="console=ttyS4,115200n8 root=/dev/ram rw" CONFIG_USE_BOOTCOMMAND=y -CONFIG_BOOTCOMMAND="bootm 20100000" +CONFIG_BOOTCOMMAND="run bootspi" # CONFIG_DISPLAY_CPUINFO is not set CONFIG_SPL_SIZE_LIMIT_SUBTRACT_GD=y CONFIG_SPL_SIZE_LIMIT_SUBTRACT_MALLOC=y diff --git a/include/configs/evb_ast2600.h b/include/configs/evb_ast2600.h index 3805091..9049a9f 100644 --- a/include/configs/evb_ast2600.h +++ b/include/configs/evb_ast2600.h @@ -14,7 +14,14 @@ #define CONFIG_SYS_LOAD_ADDR 0x83000000 /* Misc */ +#define STR_HELPER(s) #s +#define STR(s) STR_HELPER(s) + #define CONFIG_EXTRA_ENV_SETTINGS \ + "loadaddr=" STR(CONFIG_SYS_LOAD_ADDR) "\0" \ + "bootspi=fdt addr 20100000 && fdt header get fitsize totalsize && " \ + "cp.b 20100000 ${loadaddr} ${fitsize} && bootm; " \ + "echo Error loading kernel FIT image\0" \ "" #endif /* __CONFIG_H */ -- 2.7.4