From patchwork Thu Oct 26 10:16:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Raju Lakkaraju - I30499 X-Patchwork-Id: 13437448 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 BC7F410E3 for ; Thu, 26 Oct 2023 10:18:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b="jSQlX4Pa" Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.154.123]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 31F96183; Thu, 26 Oct 2023 03:18:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1698315500; x=1729851500; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=tiJ94SMzePm8CGLJQBB+8e5vPbI81y2Nzad4KmqiHC8=; b=jSQlX4Pas5qiXz/UFXotqzGb+0Utk6S3HIDQN3d7uKf8p9sH5+l8llS4 C0NyfUAFq7XP7Zlk4sWlvbR3soCw2oZDV/lFnyWldtMnAnvJo7uB+0Hbf fBPUg6STxGGSH/K8vOKckg1tITADWHBJKn07N2WiuMej461HC0sZ+pJp6 EBnqpaNXATFj9MUF0iglPQlK+uv2LPPp2vngyt3IPV4P6v5ixUa88A7PJ VTly7En72O7mU7IKcennNdpPVVgqLb85B51l32XTmh3JrrR4NAC3Ts8+t 8KG/rr629IcVCKzfUG7GWLQRR4vpom5UWRnzYgrPVOu0HrRjESaG3HGLS w==; X-CSE-ConnectionGUID: qDRF6jxKTUqq7Gfds2wdJQ== X-CSE-MsgGUID: fqVwy8rsRWKUZd5aGAleNQ== X-ThreatScanner-Verdict: Negative X-IronPort-AV: E=Sophos;i="6.03,253,1694761200"; d="scan'208";a="10631784" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa4.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 26 Oct 2023 03:18:19 -0700 Received: from chn-vm-ex01.mchp-main.com (10.10.85.143) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.21; Thu, 26 Oct 2023 03:17:54 -0700 Received: from HYD-DK-UNGSW21.microchip.com (10.10.85.11) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server id 15.1.2507.21 via Frontend Transport; Thu, 26 Oct 2023 03:17:51 -0700 From: Raju Lakkaraju To: CC: , , , , , , , Subject: [PATCH net-next V2] net: pcs: xpcs: Add 2500BASE-X case in get state for XPCS drivers Date: Thu, 26 Oct 2023 15:46:42 +0530 Message-ID: <20231026101642.3913-1-Raju.Lakkaraju@microchip.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org Add DW_2500BASEX case in xpcs_get_state( ) to update speed, duplex and pause Signed-off-by: Raju Lakkaraju --- Change List: ============ V1 -> V2: - Remove the default initialization of speed, pause and duplex V0 -> V1: - Remove the auto-negotiation check due to currently the DW_2500BASEX mode doesn't imply any auto-negotiation drivers/net/pcs/pcs-xpcs.c | 25 +++++++++++++++++++++++++ drivers/net/pcs/pcs-xpcs.h | 2 ++ 2 files changed, 27 insertions(+) diff --git a/drivers/net/pcs/pcs-xpcs.c b/drivers/net/pcs/pcs-xpcs.c index 4dbc21f604f2..392aaad2d412 100644 --- a/drivers/net/pcs/pcs-xpcs.c +++ b/drivers/net/pcs/pcs-xpcs.c @@ -1090,6 +1090,24 @@ static int xpcs_get_state_c37_1000basex(struct dw_xpcs *xpcs, return 0; } +static int xpcs_get_state_2500basex(struct dw_xpcs *xpcs, + struct phylink_link_state *state) +{ + int sts; + + sts = xpcs_read(xpcs, MDIO_MMD_VEND2, DW_VR_MII_MMD_STS); + + state->link = !!(sts & DW_VR_MII_MMD_STS_LINK_STS); + if (!state->link) + return 0; + + state->speed = SPEED_2500; + state->pause |= MLO_PAUSE_TX | MLO_PAUSE_RX; + state->duplex = DUPLEX_FULL; + + return 0; +} + static void xpcs_get_state(struct phylink_pcs *pcs, struct phylink_link_state *state) { @@ -1127,6 +1145,13 @@ static void xpcs_get_state(struct phylink_pcs *pcs, ERR_PTR(ret)); } break; + case DW_2500BASEX: + ret = xpcs_get_state_2500basex(xpcs, state); + if (ret) { + pr_err("xpcs_get_state_2500basex returned %pe\n", + ERR_PTR(ret)); + } + break; default: return; } diff --git a/drivers/net/pcs/pcs-xpcs.h b/drivers/net/pcs/pcs-xpcs.h index 39a90417e535..96c36b32ca99 100644 --- a/drivers/net/pcs/pcs-xpcs.h +++ b/drivers/net/pcs/pcs-xpcs.h @@ -55,6 +55,8 @@ /* Clause 37 Defines */ /* VR MII MMD registers offsets */ #define DW_VR_MII_MMD_CTRL 0x0000 +#define DW_VR_MII_MMD_STS 0x0001 +#define DW_VR_MII_MMD_STS_LINK_STS BIT(2) #define DW_VR_MII_DIG_CTRL1 0x8000 #define DW_VR_MII_AN_CTRL 0x8001 #define DW_VR_MII_AN_INTR_STS 0x8002