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[v8,12/12] configs: ast2600: Boot kernel FIT in DRAM

Message ID 20211027061735.2298498-13-chiawei_wang@aspeedtech.com
State Accepted
Commit e3cdc2cbb1b1a773b98bd39885c9be6b809375fb
Delegated to: Tom Rini
Headers show
Series aspeed: Support secure boot chain with FIT image verification | expand

Commit Message

ChiaWei Wang Oct. 27, 2021, 6:17 a.m. UTC 
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 <chiawei_wang@aspeedtech.com>
---
 configs/evb-ast2600_defconfig | 2 +-
 include/configs/evb_ast2600.h | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/configs/evb-ast2600_defconfig b/configs/evb-ast2600_defconfig
index eba6940ec1..abb156f13e 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 3805091d7c..9049a9fc10 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 */