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From:   Pascal van Leeuwen <pascalvanl@gmail.com>
To:     linux-crypto@vger.kernel.org
Cc:     antoine.tenart@bootlin.com, herbert@gondor.apana.org.au,
        davem@davemloft.net,
        Pascal van Leeuwen <pvanleeuwen@insidesecure.com>
Subject: [PATCH 1/3] crypto: inside-secure - make driver selectable for non-Marvell hardware
Date:   Tue, 18 Jun 2019 07:56:22 +0200
Message-Id: <1560837384-29814-2-git-send-email-pvanleeuwen@insidesecure.com>
In-Reply-To: <1560837384-29814-1-git-send-email-pvanleeuwen@insidesecure.com>
References: <1560837384-29814-1-git-send-email-pvanleeuwen@insidesecure.com>
Sender: linux-crypto-owner@vger.kernel.org
Precedence: bulk

While being a generic EIP97/EIP197 driver, the driver was only selectable
for Marvell Armada hardware. This fix makes the driver selectable for any
Device Tree supporting kernel configuration, allowing it to be used for
other compatible hardware by just adding the correct device tree entry.

It also allows the driver to be selected for PCI(E) supporting kernel con-
figurations, to be able to use it with PCIE based FPGA development boards
for pre-silicon driver development by both Inside Secure and its IP custo-
mers.

Signed-off-by: Pascal van Leeuwen <pvanleeuwen@insidesecure.com>
---
 drivers/crypto/Kconfig | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index 67af688..0d9f67d 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -716,8 +716,7 @@ source "drivers/crypto/stm32/Kconfig"
 
 config CRYPTO_DEV_SAFEXCEL
 	tristate "Inside Secure's SafeXcel cryptographic engine driver"
-	depends on OF
-	depends on (ARM64 && ARCH_MVEBU) || (COMPILE_TEST && 64BIT)
+	depends on OF || PCI || COMPILE_TEST
 	select CRYPTO_AES
 	select CRYPTO_AUTHENC
 	select CRYPTO_BLKCIPHER
@@ -729,10 +728,11 @@ config CRYPTO_DEV_SAFEXCEL
 	select CRYPTO_SHA256
 	select CRYPTO_SHA512
 	help
-	  This driver interfaces with the SafeXcel EIP-197 cryptographic engine
-	  designed by Inside Secure. Select this if you want to use CBC/ECB
-	  chain mode, AES cipher mode and SHA1/SHA224/SHA256/SHA512 hash
-	  algorithms.
+	  This driver interfaces with the SafeXcel EIP-97 and EIP-197 cryptographic
+	  engines designed by Inside Secure. It currently accelerates DES, 3DES and
+	  AES block ciphers in ECB and CBC mode, as well as SHA1, SHA224, SHA256,
+	  SHA384 and SHA512 hash algorithms for both basic hash and HMAC.
+	  Additionally, it accelerates combined AES-CBC/HMAC-SHA AEAD operations.
 
 config CRYPTO_DEV_ARTPEC6
 	tristate "Support for Axis ARTPEC-6/7 hardware crypto acceleration."
-- 
1.8.3.1