From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) (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 ACD9034CDD; Tue, 24 Feb 2026 20:29:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=68.232.153.233 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771964996; cv=none; b=ZwtnMQkmTnawVBMe0A4UKVBw/pxLt1i1/0qJC0nJEF6MKzCXJaecNBKJLaNJSrgjDb0C+Bgq3LQGWUdVTHw9w6iZN1G9xFNHgfPOtq7AEfNDY0N3qE5T0GL7Xn0mi3Xlzoqy+dqFFHxtJkma2a66ia1upx7VXnMtIcdT2IgFk2w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771964996; c=relaxed/simple; bh=JYrKBiLiuP7chA3VIle2cWQufy5LUnFCNtHJLGMMsTM=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=MWdQsbcQ/NWxJuVLOw1q81BV91NkYm+0ZzX0EqeG3D54TF4MB1ayClBwMsy16DB3BjIDm8tB37wZbPhmNXHMchnkjaQ4fVzkXIMRFFFW65WnMX6TtDKzGXIqRw2sG0Vw+8zrxG+n2ThNSKeFc1zlhcoI/Bg/dSQH6S/LQdBHNTE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com; spf=pass smtp.mailfrom=microchip.com; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b=BCvCyUhT; arc=none smtp.client-ip=68.232.153.233 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=microchip.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=microchip.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=microchip.com header.i=@microchip.com header.b="BCvCyUhT" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1771964996; x=1803500996; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=JYrKBiLiuP7chA3VIle2cWQufy5LUnFCNtHJLGMMsTM=; b=BCvCyUhTUWtAHI6uPgypxCYQOT4hY33E/kJ7xhurkzCr0jgtPjTLszGv rIzoBzw120hHNTKc7q9EsAjho9jrTFgQhZcsPtKXDaYRy8KzFcea5NhfT UvFt0O5LsoWH0J24giTOtSjCG6P/k8vcnqUkvcPGAoj+FXIqa0Krd7FCA 8eIuywAtPiclPR5Oo2+W0SRn61+4AjZz1SvV5UCDsC4fL2kmPw+aXh8md J1rC9IV4EafQmY1HdFvsdXqA+0/3ahOZcFe2mhMXZX+sDW4GTWbCgTWPA pDMeDiqU/GpHW+/+CpirDq8JkDs9rzbLlzHuLUQMjpSVikJclzRsrsn5i w==; X-CSE-ConnectionGUID: q8IE9EiCRpeM7ZzmGaO9hg== X-CSE-MsgGUID: 0jgpgC3WRwCaJijj4ru4FQ== X-IronPort-AV: E=Sophos;i="6.21,309,1763449200"; d="scan'208";a="53802224" X-Amp-Result: SKIPPED(no attachment in message) Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa3.microchip.iphmx.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 24 Feb 2026 13:29:55 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.58; Tue, 24 Feb 2026 13:29:34 -0700 Received: from bby-cbu-swbuild03.eng.microchip.com (10.10.85.11) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2507.58 via Frontend Transport; Tue, 24 Feb 2026 13:29:33 -0700 From: Charles Perry To: CC: Charles Perry , Sean Anderson , Nicolas Ferre , Claudiu Beznea , Andrew Lunn , "David S. Miller" , "Eric Dumazet" , Jakub Kicinski , Paolo Abeni , Russell King , Subject: [PATCH net-next v2 2/3] net: macb: add support for reporting SGMII inband link status Date: Tue, 24 Feb 2026 12:28:53 -0800 Message-ID: <20260224202854.112813-3-charles.perry@microchip.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260224202854.112813-1-charles.perry@microchip.com> References: <20260224202854.112813-1-charles.perry@microchip.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain This makes it possible to use in-band autonegotiation with SGMII. If using a device tree, this can be done by adding the managed = "in-band-status" property to the gem node. Signed-off-by: Charles Perry --- Notes: Changes in v2: * Move my notes to the cover letter drivers/net/ethernet/cadence/macb_main.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c index f4250e76cef0..f6efc1bb88b6 100644 --- a/drivers/net/ethernet/cadence/macb_main.c +++ b/drivers/net/ethernet/cadence/macb_main.c @@ -560,7 +560,12 @@ static int macb_usx_pcs_config(struct phylink_pcs *pcs, static void macb_pcs_get_state(struct phylink_pcs *pcs, unsigned int neg_mode, struct phylink_link_state *state) { - state->link = 0; + struct macb *bp = container_of(pcs, struct macb, phylink_sgmii_pcs); + u16 bmsr, lpa; + + bmsr = gem_readl(bp, PCSSTS); + lpa = gem_readl(bp, PCSANLPBASE); + phylink_mii_c22_pcs_decode_state(state, neg_mode, bmsr, lpa); } static void macb_pcs_an_restart(struct phylink_pcs *pcs) -- 2.47.3