diff options
| author | Bryan O'Donoghue <bryan.odonoghue@linaro.org> | 2018-01-26 16:27:58 +0000 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2018-02-04 12:14:11 +0100 |
| commit | d1ceb0c4881332cb0586920f0a40f8e4a48d99a9 (patch) | |
| tree | aa005b3bd0fd5716d8dd3b69c1c55f14a34f5f9e /arch/arm/mach-imx | |
| parent | 22191ac353445ad8fafc5a78aefcd94e78963041 (diff) | |
imx: mx7: run sec_init for CAAM RNG
This patch adds a sec_init call into arch_misc_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. With recent changes by Lukas Auer to
fully initialize the RNG in sec_init() this means that u-boot will hand-off
the CAAM in a state that Linux then can use the CAAM without touching the
reserved DECO registers.
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.odonoghue@linaro.org>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Marco Franchi <marco.franchi@nxp.com>
Cc: Vanessa Maegima <vanessa.maegima@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Tested-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Diffstat (limited to 'arch/arm/mach-imx')
| -rw-r--r-- | arch/arm/mach-imx/mx7/soc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/mx7/soc.c b/arch/arm/mach-imx/mx7/soc.c index 172be2ccc0..d349676b81 100644 --- a/arch/arm/mach-imx/mx7/soc.c +++ b/arch/arm/mach-imx/mx7/soc.c @@ -17,6 +17,7 @@ #include <asm/arch/crm_regs.h> #include <dm.h> #include <imx_thermal.h> +#include <fsl_sec.h> #if defined(CONFIG_IMX_THERMAL) static const struct imx_thermal_plat imx7_thermal_plat = { @@ -191,6 +192,10 @@ int arch_misc_init(void) env_set("soc", "imx7s"); #endif +#ifdef CONFIG_FSL_CAAM + sec_init(); +#endif + return 0; } #endif |