From: George McCollister <george.mccollister@gmail.com>
Date: Thu, 16 Mar 2017 21:17:06 +0000 (-0500)
Subject: Kconfig: Don't use RSA_FREESCALE_EXP on IMX
X-Git-Tag: v2025.01-rc5-pxa1908~7361
X-Git-Url: http://git.dujemihanovic.xyz/%22http:/kyber.dk/phpMyBuilder/static/%7B%7B%20%28.OutputFormats.Get?a=commitdiff_plain;h=f4e9ff71356aceab5bd212e528c123353c531a48;p=u-boot.git

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 <george.mccollister@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
---

diff --git a/lib/rsa/Kconfig b/lib/rsa/Kconfig
index 09ec358242..fde1ac108d 100644
--- 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.