From: Thorsten Blum <thorsten.blum@linux.dev>
Date: Sun, 12 Apr 2026 09:56:43 +0000 (+0200)
Subject: crypto: atmel-ecc - add support for atecc608b
X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=b668edaf8dcc8d09f6f1e71797422b44d4bd22a3;p=thirdparty%2Fkernel%2Flinux.git

crypto: atmel-ecc - add support for atecc608b

Tested on hardware with an ATECC608B at 0x60. The device binds
successfully, passes the driver's sanity check, and registers the
ecdh-nist-p256 KPP algorithm.

The hardware ECDH path was also exercised using a minimal KPP test
module, covering private key generation, public key derivation, and
shared secret computation.

Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---

diff --git a/drivers/crypto/atmel-ecc.c b/drivers/crypto/atmel-ecc.c
index 9c380351d2f9f..3738a4eb87015 100644
--- a/drivers/crypto/atmel-ecc.c
+++ b/drivers/crypto/atmel-ecc.c
@@ -372,6 +372,8 @@ static void atmel_ecc_remove(struct i2c_client *client)
 static const struct of_device_id atmel_ecc_dt_ids[] = {
 	{
 		.compatible = "atmel,atecc508a",
+	}, {
+		.compatible = "atmel,atecc608b",
 	}, {
 		/* sentinel */
 	}
@@ -381,6 +383,7 @@ MODULE_DEVICE_TABLE(of, atmel_ecc_dt_ids);
 
 static const struct i2c_device_id atmel_ecc_id[] = {
 	{ "atecc508a" },
+	{ "atecc608b" },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, atmel_ecc_id);