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 9c380351d2f9fae8329df5f95d401981ee79a49c..3738a4eb870154d4087b1ae24fdbe652391571a4 100644 (file)
--- 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);