Kconfig: Don't use RSA_FREESCALE_EXP on IMX

The CAAM in IMX parts doesn't support public key hardware acceleration (PKHA), so don't use RSA_FREESCALE_EXP. If you try to use it on IMX (assuming you have the clocks enabled first) you will get back an "Invalid KEY Command" error since PKHA isn't a valid key destination for these parts. Signed-off-by: George McCollister <[email protected]> Reviewed-by: Tom Rini <[email protected]>
Keerthyj · Mar 20, 2017 · f4e9ff7 · f4e9ff7
1 parent a051a99
commit f4e9ff7
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/lib/rsa/Kconfig b/lib/rsa/Kconfig
@@ -1,6 +1,6 @@
 config RSA
 	bool "Use RSA Library"
-	select RSA_FREESCALE_EXP if FSL_CAAM
+	select RSA_FREESCALE_EXP if FSL_CAAM && !ARCH_MX7 && !ARCH_MX6 && !ARCH_MX5
 	select RSA_SOFTWARE_EXP if !RSA_FREESCALE_EXP
 	help
 	  RSA support. This enables the RSA algorithm used for FIT image
@@ -29,7 +29,7 @@ config RSA_SOFTWARE_EXP
 
 config RSA_FREESCALE_EXP
 	bool "Enable RSA Modular Exponentiation with FSL crypto accelerator"
-	depends on DM && RSA && FSL_CAAM
+	depends on DM && RSA && FSL_CAAM && !ARCH_MX7 && !ARCH_MX6 && !ARCH_MX5
 	help
 	Enables driver for RSA modular exponentiation using Freescale cryptographic
 	accelerator - CAAM.