This patch adds a sec_init call into board_init. Doing so in conjunction
with the patch "drivers/crypto/fsl: assign job-rings to non-TrustZone"
enables use of the CAAM in Linux when OPTEE/TrustZone is active.
u-boot will initialise the RNG and assign ownership of the job-ring
registers to a non-TrustZone context. Linux then simply has to detect or be
told to skip RNG initialisation.
This change is safe both for the OPTEE/TrustZone boot path and the regular
non-OPTEE/TrustZone boot path.
Signed-off-by: Bryan O'Donoghue <bryan.odonog...@linaro.org>
Cc: Fabio Estevam <fabio.este...@nxp.com>
Cc: Peng Fan <peng....@nxp.com>
Cc: Marco Franchi <marco.fran...@nxp.com>
Cc: Vanessa Maegima <vanessa.maeg...@nxp.com>
Cc: Stefano Babic <sba...@denx.de>
---
board/warp7/warp7.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/board/warp7/warp7.c b/board/warp7/warp7.c
index 337e76b..219ab6f 100644
--- a/board/warp7/warp7.c
+++ b/board/warp7/warp7.c
@@ -16,6 +16,7 @@
#include <asm/io.h>
#include <common.h>
#include <fsl_esdhc.h>
+#include <fsl_sec.h>
#include <i2c.h>
#include <mmc.h>
#include <asm/arch/crm_regs.h>
@@ -225,6 +226,10 @@ int board_init(void)
setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
#endif
+ #ifdef CONFIG_FSL_CAAM
+ sec_init();
+ #endif
+
return 0;
}
@@ -366,5 +371,4 @@ int g_dnl_bind_fixup(struct usb_device_descriptor *dev,
const char *name)
return 0;
}
-
#endif /* ifdef CONFIG_USB_GADGET */
--
2.7.4
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