Thread (6 messages) 6 messages, 4 authors, 2026-01-02

Re: [PATCH v2 2/2] mips: dts: ralink: mt7621: add crypto offload support

From: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Date: 2026-01-01 21:46:07
Also in: linux-crypto, linux-devicetree, linux-mediatek, linux-mips, lkml

Hi Aleksander,

On Thu, Jan 1, 2026 at 6:21 PM Aleksander Jan Bajkowski [off-list ref] wrote:
quoted hunk ↗ jump to hunk
Add support for the built-in cryptographic accelerator. This accelerator
supports 3DES, AES (128/192/256 bit), ARC4, MD5, SHA1, SHA224, and SHA256.
It also supports full IPSEC and TLS offload, but this feature isn't
implemented in the driver.

Signed-off-by: Aleksander Jan Bajkowski <redacted>
---
 arch/mips/boot/dts/ralink/mt7621.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)
diff --git a/arch/mips/boot/dts/ralink/mt7621.dtsi b/arch/mips/boot/dts/ralink/mt7621.dtsi
index 0704eab4a80b..9ba28fa016fb 100644
--- a/arch/mips/boot/dts/ralink/mt7621.dtsi
+++ b/arch/mips/boot/dts/ralink/mt7621.dtsi
@@ -361,6 +361,14 @@ cdmm: cdmm@1fbf8000 {
                reg = <0x1fbf8000 0x8000>;
        };

+       crypto@1e004000 {
+               compatible = "mediatek,mt7621-eip93", "inside-secure,safexcel-eip93ies";
+               reg = <0x1e004000 0x1000>;
+
+               interrupt-parent = <&gic>;
+               interrupts = <GIC_SHARED 19 IRQ_TYPE_LEVEL_HIGH>;
+       };
+
AFAICS, the crypto engine for mt7621 has also a clock gate[0] and a
reset line[1]. These two are not present in this binding.

[0]: https://elixir.bootlin.com/linux/v6.18.2/source/include/dt-bindings/clock/mt7621-clk.h#L36
[1]: https://elixir.bootlin.com/linux/v6.18.2/source/include/dt-bindings/reset/mt7621-reset.h#L33

Best regards,
    Sergio Paracuellos
        ethernet: ethernet@1e100000 {
                compatible = "mediatek,mt7621-eth";
                reg = <0x1e100000 0x10000>;
--
2.47.3
  
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