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Kconfig: Don't use RSA_FREESCALE_EXP on IMX

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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 <george.mccollister@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
George McCollister 2017-03-16 16:17:06 -05:00 committed by Tom Rini
parent a051a99f0d
commit f4e9ff7135
1 changed files with 2 additions and 2 deletions
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4
lib/rsa/Kconfig
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@ -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.