From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-170.mta1.migadu.com (out-170.mta1.migadu.com [95.215.58.170]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6DB0E3B8D47 for ; Mon, 30 Mar 2026 10:08:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.170 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774865305; cv=none; b=ZEItiC82vqYeOSEQq7pjAc/u7VnI0Q9a5qWp7gDx1OYcGXiaNbmOiP4SOkf1pDH/RWvc8nei5W4Kd+DPk+1R5Y35JrvaAHPO4dL4paKAOa2wP00gnvy7BVU93jzs1VVwvAWE+Yt3vYaQj8Re76L8Qi/9Cp8tHxs1SomfIN0qVFI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774865305; c=relaxed/simple; bh=RtnjTAxLWWtDJPmVNJ2E9HhoOT8h44xIvv6Mlx1+lMc=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=TTgSHc87WGUwJnONCdV4AI3ADx/JsFC2yjdgXYTI9vAJIA6DCQMhWLpUeC1F1yogknIiPh5J4qL9KzMfiK1zqtBHSMODeY01jxNj+xq4qtXft7MCJyWr+iSY5UlT7k2W1HbbHWwnRP4IPIJbQEno6SjoOVmOO8tlsNfa8v4fMbo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=RA1RMxsq; arc=none smtp.client-ip=95.215.58.170 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="RA1RMxsq" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1774865301; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=o6343OGuJL2cSO3CZkyoIBOVLXRYBOtEAFU3KFNUOKA=; b=RA1RMxsqSoXFLSuaIPcxt1aaRrM9bxvbVuaCrfGG8LaNT1nLSikaijdBJ8v3BIj4DIpZc9 iEO/KniXFgauGLghTEtmKpTALQ0EVLRtSP7fIdf1lQfgD9UMl2IJI/6wJrgHkqfNsHMZ/5 5/WJg0LwESHEqoJ/xu87LkM2cOuxz4g= From: Thorsten Blum To: Herbert Xu , "David S. Miller" , Nicolas Ferre , Alexandre Belloni , Claudiu Beznea Cc: Thorsten Blum , linux-crypto@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/2] crypto: atmel-ecc - add support for atecc608b Date: Mon, 30 Mar 2026 12:08:00 +0200 Message-ID: <20260330100800.389042-3-thorsten.blum@linux.dev> Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1114; i=thorsten.blum@linux.dev; h=from:subject; bh=RtnjTAxLWWtDJPmVNJ2E9HhoOT8h44xIvv6Mlx1+lMc=; b=owGbwMvMwCUWt7pQ4caZUj3G02pJDJmnvBvuX5nQeP+yjt+qHZOrnirmPz2hpnLqm3iGm/fec w7qGmkFHaUsDGJcDLJiiiwPZv2Y4VtaU7nJJGInzBxWJpAhDFycAjCR0FZGhrXpK5wDv2Sd5OM5 e18mqKr3ijiT1LnbvQ8rRNoa2a46cTL8FcpZVLm7/IVUOK/Yad1GDmO3mpie7+fn/8pStOIza5J lBgA= X-Developer-Key: i=thorsten.blum@linux.dev; a=openpgp; fpr=1D60735E8AEF3BE473B69D84733678FD8DFEEAD4 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT 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 --- drivers/crypto/atmel-ecc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/crypto/atmel-ecc.c b/drivers/crypto/atmel-ecc.c index b6a77c8d439c..5793e0c44113 100644 --- a/drivers/crypto/atmel-ecc.c +++ b/drivers/crypto/atmel-ecc.c @@ -371,6 +371,8 @@ 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 */ } @@ -380,6 +382,7 @@ 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);