Add bindings for the Inside Secure SafeXcel EIP-93 crypto engine. The IP is present on Airoha SoC and on various Mediatek devices and other SoC under different names like mtk-eip93 or PKTE. All the compatible that currently doesn't have any user are defined but rejected waiting for an actual device that makes use of them. Signed-off-by: Christian Marangi <ansuelsmth@xxxxxxxxx> --- Changes v6: - Add SoC specific compatible - Add now supported entry for compatible with no user Changes v5: - Comment out compatible with no current user Changes v4: - Out of RFC Changes v3: - Add SoC compatible with generic one Changes v2: - Change to better compatible - Add description for EIP93 models .../crypto/inside-secure,safexcel-eip93.yaml | 67 +++++++++++++++++++ 1 file changed, 67 insertions(+) create mode 100644 Documentation/devicetree/bindings/crypto/inside-secure,safexcel-eip93.yaml diff --git a/Documentation/devicetree/bindings/crypto/inside-secure,safexcel-eip93.yaml b/Documentation/devicetree/bindings/crypto/inside-secure,safexcel-eip93.yaml new file mode 100644 index 000000000000..997bf9717f9e --- /dev/null +++ b/Documentation/devicetree/bindings/crypto/inside-secure,safexcel-eip93.yaml @@ -0,0 +1,67 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/crypto/inside-secure,safexcel-eip93.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Inside Secure SafeXcel EIP-93 cryptographic engine + +maintainers: + - Christian Marangi <ansuelsmth@xxxxxxxxx> + +description: | + The Inside Secure SafeXcel EIP-93 is a cryptographic engine IP block + integrated in varios devices with very different and generic name from + PKTE to simply vendor+EIP93. The real IP under the hood is actually + developed by Inside Secure and given to license to vendors. + + The IP block is sold with different model based on what feature are + needed and are identified with the final letter. Each letter correspond + to a specific set of feature and multiple letter reflect the sum of the + feature set. + + EIP-93 models: + - EIP-93i: (basic) DES/Triple DES, AES, PRNG, IPsec ESP, SRTP, SHA1 + - EIP-93ie: i + SHA224/256, AES-192/256 + - EIP-93is: i + SSL/DTLS/DTLS, MD5, ARC4 + - EIP-93ies: i + e + s + - EIP-93iw: i + AES-XCB-MAC, AES-CCM + +properties: + compatible: + oneOf: + - items: + - const: airoha,en7581-eip93 + - const: inside-secure,safexcel-eip93ies + - items: + - not: {} + description: Need a SoC specific compatible + - enum: + - inside-secure,safexcel-eip93i + - inside-secure,safexcel-eip93ie + - inside-secure,safexcel-eip93is + - inside-secure,safexcel-eip93iw + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + +required: + - compatible + - reg + - interrupts + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + + crypto@1e004000 { + compatible = "airoha,en7581-eip93", "inside-secure,safexcel-eip93ies"; + reg = <0x1fb70000 0x1000>; + + interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>; + }; -- 2.45.2
