ramips: add support for mtk eip93 crypto engine

Mediatek EIP93 Crypto engine is a crypto accelerator which is available in the Mediatek MT7621 SoC. Signed-off-by: Aviana Cruz <[email protected]> Co-authored-by: Richard van Schagen <[email protected]> Co-authored-by: Chukun Pan <[email protected]>
wangbing1087 · Sep 12, 2023 · 46d6730 · 46d6730
1 parent 47d56ae
commit 46d6730
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diff --git a/package/kernel/linux/modules/crypto.mk b/package/kernel/linux/modules/crypto.mk
@@ -463,6 +463,35 @@ endef
 
 $(eval $(call KernelPackage,crypto-hw-talitos))
 
+define KernelPackage/crypto-hw-eip93
+  TITLE:=MTK EIP93 crypto module
+  DEPENDS:=@TARGET_ramips_mt7621 \
+	+kmod-crypto-authenc \
+	+kmod-crypto-des \
+	+kmod-crypto-md5 \
+	+kmod-crypto-sha1 \
+	+kmod-crypto-sha256
+  KCONFIG:= \
+	CONFIG_CRYPTO_HW=y \
+	CONFIG_CRYPTO_DEV_EIP93 \
+	CONFIG_CRYPTO_DEV_EIP93_AES=y \
+	CONFIG_CRYPTO_DEV_EIP93_DES=y \
+	CONFIG_CRYPTO_DEV_EIP93_AEAD=y \
+	CONFIG_CRYPTO_DEV_EIP93_GENERIC_SW_MAX_LEN=256 \
+	CONFIG_CRYPTO_DEV_EIP93_AES_128_SW_MAX_LEN=512
+  FILES:=$(LINUX_DIR)/drivers/crypto/mtk-eip93/crypto-hw-eip93.ko
+  AUTOLOAD:=$(call AutoLoad,09,crypto-hw-eip93)
+  $(call AddDepends/crypto)
+endef
+
+define KernelPackage/crypto-hw-eip93/description
+Kernel module to enable EIP-93 Crypto engine as found
+in the Mediatek MT7621 SoC.
+It enables DES/3DES/AES ECB/CBC/CTR and
+IPSEC offload with authenc(hmac(sha1/sha256), aes/cbc/rfc3686)
+endef
+
+$(eval $(call KernelPackage,crypto-hw-eip93))
 
 define KernelPackage/crypto-kpp
   TITLE:=Key-agreement Protocol Primitives

diff --git a/target/linux/ramips/dts/mt7621.dtsi b/target/linux/ramips/dts/mt7621.dtsi
@@ -423,6 +423,14 @@
 		clock-names = "nfi_clk";
 	};
 
+	crypto: crypto@1e004000 {
+		compatible = "mediatek,mtk-eip93";
+		reg = <0x1e004000 0x1000>;
+
+		interrupt-parent = <&gic>;
+		interrupts = <GIC_SHARED 19 IRQ_TYPE_LEVEL_HIGH>;
+	};
+
 	ethernet: ethernet@1e100000 {
 		compatible = "mediatek,mt7621-eth";
 		reg = <0x1e100000 0x10000>;

diff --git a/target/linux/ramips/mt7621/target.mk b/target/linux/ramips/mt7621/target.mk
@@ -10,7 +10,7 @@ KERNELNAME:=vmlinux vmlinuz
 # make Kernel/CopyImage use $LINUX_DIR/vmlinuz
 IMAGES_DIR:=../../..
 
-DEFAULT_PACKAGES += wpad-basic-mbedtls uboot-envtools
+DEFAULT_PACKAGES += wpad-basic-mbedtls uboot-envtools kmod-crypto-hw-eip93
 
 define Target/Description
 	Build firmware images for Ralink MT7621 based boards.