[PATCH] imx: imx8mn_smm_s2/s2pro: Enable TrustZone

Michael Trimarchi michael at amarulasolutions.com
Sun May 15 11:41:09 CEST 2022


When the board was added, enabling tzc380 was left off by
mistake. The optee was tested with the following configuration
in s2pro

+	firmware {
+		optee {
+			compatible = "linaro,optee-tz";
+			method = "smc";
+		};
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		/* 6MiB */
+		optee_core at 5f800000 {
+			reg = <0x00 0x5f800000 0x00 0x600000>;
+		};
+
+		/* 2MiB */
+		optee_shm at 5fe00000 {
+			reg = <0x00 0x5fe00000 0x00 0x200000>;
+		};
+	};
+

Signed-off-by: Michael Trimarchi <michael at amarulasolutions.com>
---
 board/bsh/imx8mn_smm_s2/spl.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/board/bsh/imx8mn_smm_s2/spl.c b/board/bsh/imx8mn_smm_s2/spl.c
index 097b60c055..549fc6992b 100644
--- a/board/bsh/imx8mn_smm_s2/spl.c
+++ b/board/bsh/imx8mn_smm_s2/spl.c
@@ -86,6 +86,8 @@ void board_init_f(ulong dummy)
 
 	preloader_console_init();
 
+	enable_tzc380();
+
 	/* DDR initialization */
 	spl_dram_init();
 
-- 
2.25.1



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