From patchwork Wed May 26 13:55:26 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Oltean X-Patchwork-Id: 12281751 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 561D9C47089 for ; Wed, 26 May 2021 13:56:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3A223611C9 for ; Wed, 26 May 2021 13:56:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233304AbhEZN5k (ORCPT ); Wed, 26 May 2021 09:57:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53514 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234282AbhEZN5b (ORCPT ); Wed, 26 May 2021 09:57:31 -0400 Received: from mail-ej1-x635.google.com (mail-ej1-x635.google.com [IPv6:2a00:1450:4864:20::635]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 654F0C061756 for ; Wed, 26 May 2021 06:55:58 -0700 (PDT) Received: by mail-ej1-x635.google.com with SMTP id lz27so2582926ejb.11 for ; Wed, 26 May 2021 06:55:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=oS+6W66HcoQuB/oLBDJ9kgSSWP/V+pYyYvcxM3pyL4w=; b=FLLk7tjiIH4OIn06oznHRAOT0544QJUw4ez8unBnCHKcZv/ssJ7WhZDvbWuvBnxJv/ OF8qXH1t/LImS14KDhiQGkoKwtS+hYAL6yIn6exkJOVUyAT9llgnrvnzbgbCeQoCb+9H gPGEGORzeNus252RnLtVOdE4SP+2WTv9aDhHOFfi+TNfln1X4xY6CGmyq5WgVHZa8fr5 2IfKDAyY4KnS7OAdUG9KEvENb8sRi/hKChc3m9+xlFt6tq/qh8F0y3/BApz2bL0i5AUe MZr2P/qhboBm958SnqdksrICUqUcjI0A0P5G/eqZPoduxAaO4WYigbVx1EB6GocMyx3g SnlA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=oS+6W66HcoQuB/oLBDJ9kgSSWP/V+pYyYvcxM3pyL4w=; b=bPx37hv/sjfnAfdbAqEHL1unZFBUtTPZ+ckttHlbhPN0txGioLHoYOGHp0QgZRVTbG Tx5oU3ZY+oe8DkJy+jQzUlUbNwXBhZMEXZpknSW6na+XOzxNtKTJYDsX4AXMQsh+4C95 +U1zxkpqeAOY86a3FYWoml1HfG1Xlz7d+t9UFAL89dhHgun8dcTD5hlfv0W+YTw+6jBb CAr7gzSARE5XgPKLQbRUKb2H8mkWSAnAC8C2msJs57vGlureyJoQ6ME2Pl6lZ3pksyNn PUQ+WieGQIo2Ui9fGVHTTZWRlpJFufNrE59f+6+gl8OcuU5ZEgXcmq2xAD7BVUE1s4VY geQA== X-Gm-Message-State: AOAM531lfWhJK43YZs1TuyocA/S6cECdJ9MTLgHRusDlUq26o3wxQ9s6 uHkc7NZhrJ9fXbvmFObwrko= X-Google-Smtp-Source: ABdhPJwdXM0wfecEdfafaCrV+r+3eyaS2htDHRe01epxm8fYRXfCewHaGDEctDqZPdRjbuOrIW/ivQ== X-Received: by 2002:a17:907:37b:: with SMTP id rs27mr34856143ejb.287.1622037356952; Wed, 26 May 2021 06:55:56 -0700 (PDT) Received: from localhost.localdomain ([188.26.52.84]) by smtp.gmail.com with ESMTPSA id k11sm10508476ejc.94.2021.05.26.06.55.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 26 May 2021 06:55:56 -0700 (PDT) From: Vladimir Oltean X-Google-Original-From: Vladimir Oltean To: Jakub Kicinski , "David S. Miller" , netdev@vger.kernel.org Cc: Florian Fainelli , Andrew Lunn , Vivien Didelot Subject: [RFC PATCH v2 linux-next 05/14] net: dsa: sja1105: add a PHY interface type compatibility matrix Date: Wed, 26 May 2021 16:55:26 +0300 Message-Id: <20210526135535.2515123-6-vladimir.oltean@nxp.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210526135535.2515123-1-vladimir.oltean@nxp.com> References: <20210526135535.2515123-1-vladimir.oltean@nxp.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org X-Patchwork-State: RFC On the SJA1105, all ports support the parallel "xMII" protocols (MII, RMII, RGMII) except for port 4 on SJA1105R/S which supports only SGMII. This was relatively easy to model, by special-casing the SGMII port. On the SJA1110, certain ports can be pinmuxed between SGMII and xMII, or between SGMII and an internal 100base-TX PHY. This creates problems, because the driver's assumption so far was that if a port supports SGMII, it uses SGMII. We allow the device tree to tell us how the port pinmuxing is done, and check that against a PHY interface type compatibility matrix for plausibility. The other big change is that instead of doing SGMII configuration based on what the port supports, we do it based on what is the configured phy_mode of the port. The 2500base-x support added in this patch is not complete. Signed-off-by: Vladimir Oltean Reviewed-by: Florian Fainelli --- drivers/net/dsa/sja1105/sja1105.h | 5 +++ drivers/net/dsa/sja1105/sja1105_main.c | 59 +++++++++++++------------- drivers/net/dsa/sja1105/sja1105_spi.c | 20 +++++++++ 3 files changed, 55 insertions(+), 29 deletions(-) diff --git a/drivers/net/dsa/sja1105/sja1105.h b/drivers/net/dsa/sja1105/sja1105.h index d5c0217b1f65..a27841642693 100644 --- a/drivers/net/dsa/sja1105/sja1105.h +++ b/drivers/net/dsa/sja1105/sja1105.h @@ -111,6 +111,11 @@ struct sja1105_info { enum packing_op op); int (*clocking_setup)(struct sja1105_private *priv); const char *name; + bool supports_mii[SJA1105_MAX_NUM_PORTS]; + bool supports_rmii[SJA1105_MAX_NUM_PORTS]; + bool supports_rgmii[SJA1105_MAX_NUM_PORTS]; + bool supports_sgmii[SJA1105_MAX_NUM_PORTS]; + bool supports_2500basex[SJA1105_MAX_NUM_PORTS]; }; enum sja1105_key_type { diff --git a/drivers/net/dsa/sja1105/sja1105_main.c b/drivers/net/dsa/sja1105/sja1105_main.c index f33c23074bb5..8a07373e3cf3 100644 --- a/drivers/net/dsa/sja1105/sja1105_main.c +++ b/drivers/net/dsa/sja1105/sja1105_main.c @@ -143,21 +143,6 @@ static int sja1105_init_mac_settings(struct sja1105_private *priv) return 0; } -static bool sja1105_supports_sgmii(struct sja1105_private *priv, int port) -{ - if (priv->info->part_no != SJA1105R_PART_NO && - priv->info->part_no != SJA1105S_PART_NO) - return false; - - if (port != SJA1105_SGMII_PORT) - return false; - - if (dsa_is_unused_port(priv->ds, port)) - return false; - - return true; -} - static int sja1105_init_mii_settings(struct sja1105_private *priv, struct sja1105_dt_port *ports) { @@ -191,25 +176,42 @@ static int sja1105_init_mii_settings(struct sja1105_private *priv, switch (ports[i].phy_mode) { case PHY_INTERFACE_MODE_MII: + if (!priv->info->supports_mii[i]) + goto unsupported; + mii->xmii_mode[i] = XMII_MODE_MII; break; case PHY_INTERFACE_MODE_RMII: + if (!priv->info->supports_rmii[i]) + goto unsupported; + mii->xmii_mode[i] = XMII_MODE_RMII; break; case PHY_INTERFACE_MODE_RGMII: case PHY_INTERFACE_MODE_RGMII_ID: case PHY_INTERFACE_MODE_RGMII_RXID: case PHY_INTERFACE_MODE_RGMII_TXID: + if (!priv->info->supports_rgmii[i]) + goto unsupported; + mii->xmii_mode[i] = XMII_MODE_RGMII; break; case PHY_INTERFACE_MODE_SGMII: - if (!sja1105_supports_sgmii(priv, i)) - return -EINVAL; + if (!priv->info->supports_sgmii[i]) + goto unsupported; + + mii->xmii_mode[i] = XMII_MODE_SGMII; + break; + case PHY_INTERFACE_MODE_2500BASEX: + if (!priv->info->supports_2500basex[i]) + goto unsupported; + mii->xmii_mode[i] = XMII_MODE_SGMII; break; +unsupported: default: - dev_err(dev, "Unsupported PHY mode %s!\n", - phy_modes(ports[i].phy_mode)); + dev_err(dev, "Unsupported PHY mode %s on port %d!\n", + phy_modes(ports[i].phy_mode), i); return -EINVAL; } @@ -999,10 +1001,8 @@ static int sja1105_speed[] = { static int sja1105_adjust_port_config(struct sja1105_private *priv, int port, int speed_mbps) { - struct sja1105_xmii_params_entry *mii; struct sja1105_mac_config_entry *mac; struct device *dev = priv->ds->dev; - sja1105_phy_interface_t phy_mode; sja1105_speed_t speed; int rc; @@ -1013,7 +1013,6 @@ static int sja1105_adjust_port_config(struct sja1105_private *priv, int port, * reasonable approximation for both E/T and P/Q/R/S. */ mac = priv->static_config.tables[BLK_IDX_MAC_CONFIG].entries; - mii = priv->static_config.tables[BLK_IDX_XMII_PARAMS].entries; switch (speed_mbps) { case SPEED_UNKNOWN: @@ -1047,7 +1046,7 @@ static int sja1105_adjust_port_config(struct sja1105_private *priv, int port, * Actually for the SGMII port, the MAC is fixed at 1 Gbps and * we need to configure the PCS only (if even that). */ - if (sja1105_supports_sgmii(priv, port)) + if (priv->phy_mode[port] == PHY_INTERFACE_MODE_SGMII) mac[port].speed = SJA1105_SPEED_1000MBPS; else mac[port].speed = speed; @@ -1066,8 +1065,7 @@ static int sja1105_adjust_port_config(struct sja1105_private *priv, int port, * the clock setup does interrupt the clock signal for a certain time * which causes trouble for all PHYs relying on this signal. */ - phy_mode = mii->xmii_mode[port]; - if (phy_mode != XMII_MODE_RGMII) + if (!phy_interface_mode_is_rgmii(priv->phy_mode[port])) return 0; return sja1105_clocking_setup_port(priv, port); @@ -1091,7 +1089,9 @@ static void sja1105_mac_config(struct dsa_switch *ds, int port, const struct phylink_link_state *state) { struct sja1105_private *priv = ds->priv; - bool is_sgmii = sja1105_supports_sgmii(priv, port); + bool is_sgmii; + + is_sgmii = (state->interface == PHY_INTERFACE_MODE_SGMII); if (sja1105_phy_mode_mismatch(priv, port, state->interface)) { dev_err(ds->dev, "Changing PHY mode to %s not supported!\n", @@ -1128,7 +1128,8 @@ static void sja1105_mac_link_up(struct dsa_switch *ds, int port, sja1105_adjust_port_config(priv, port, speed); - if (sja1105_supports_sgmii(priv, port) && !phylink_autoneg_inband(mode)) + if (priv->phy_mode[port] == PHY_INTERFACE_MODE_SGMII && + !phylink_autoneg_inband(mode)) sja1105_sgmii_pcs_force_speed(priv, port, speed); sja1105_inhibit_tx(priv, BIT(port), false); @@ -1885,7 +1886,7 @@ int sja1105_static_config_reload(struct sja1105_private *priv, speed_mbps[i] = sja1105_speed[mac[i].speed]; mac[i].speed = SJA1105_SPEED_AUTO; - if (sja1105_supports_sgmii(priv, i)) + if (priv->phy_mode[i] == PHY_INTERFACE_MODE_SGMII) bmcr[i] = sja1105_sgmii_read(priv, i, MDIO_MMD_VEND2, MDIO_CTRL1); @@ -1942,7 +1943,7 @@ int sja1105_static_config_reload(struct sja1105_private *priv, if (rc < 0) goto out; - if (!sja1105_supports_sgmii(priv, i)) + if (priv->phy_mode[i] != PHY_INTERFACE_MODE_SGMII) continue; an_enabled = !!(bmcr[i] & BMCR_ANENABLE); diff --git a/drivers/net/dsa/sja1105/sja1105_spi.c b/drivers/net/dsa/sja1105/sja1105_spi.c index 615e0906b1fa..565b594efa7d 100644 --- a/drivers/net/dsa/sja1105/sja1105_spi.c +++ b/drivers/net/dsa/sja1105/sja1105_spi.c @@ -482,6 +482,9 @@ const struct sja1105_info sja1105e_info = { .ptp_cmd_packing = sja1105et_ptp_cmd_packing, .clocking_setup = sja1105_clocking_setup, .regs = &sja1105et_regs, + .supports_mii = {true, true, true, true, true}, + .supports_rmii = {true, true, true, true, true}, + .supports_rgmii = {true, true, true, true, true}, .name = "SJA1105E", }; @@ -502,6 +505,9 @@ const struct sja1105_info sja1105t_info = { .ptp_cmd_packing = sja1105et_ptp_cmd_packing, .clocking_setup = sja1105_clocking_setup, .regs = &sja1105et_regs, + .supports_mii = {true, true, true, true, true}, + .supports_rmii = {true, true, true, true, true}, + .supports_rgmii = {true, true, true, true, true}, .name = "SJA1105T", }; @@ -523,6 +529,9 @@ const struct sja1105_info sja1105p_info = { .ptp_cmd_packing = sja1105pqrs_ptp_cmd_packing, .clocking_setup = sja1105_clocking_setup, .regs = &sja1105pqrs_regs, + .supports_mii = {true, true, true, true, true}, + .supports_rmii = {true, true, true, true, true}, + .supports_rgmii = {true, true, true, true, true}, .name = "SJA1105P", }; @@ -544,6 +553,9 @@ const struct sja1105_info sja1105q_info = { .ptp_cmd_packing = sja1105pqrs_ptp_cmd_packing, .clocking_setup = sja1105_clocking_setup, .regs = &sja1105pqrs_regs, + .supports_mii = {true, true, true, true, true}, + .supports_rmii = {true, true, true, true, true}, + .supports_rgmii = {true, true, true, true, true}, .name = "SJA1105Q", }; @@ -565,6 +577,10 @@ const struct sja1105_info sja1105r_info = { .ptp_cmd_packing = sja1105pqrs_ptp_cmd_packing, .clocking_setup = sja1105_clocking_setup, .regs = &sja1105pqrs_regs, + .supports_mii = {true, true, true, true, true}, + .supports_rmii = {true, true, true, true, true}, + .supports_rgmii = {true, true, true, true, true}, + .supports_sgmii = {false, false, false, false, true}, .name = "SJA1105R", }; @@ -586,5 +602,9 @@ const struct sja1105_info sja1105s_info = { .fdb_del_cmd = sja1105pqrs_fdb_del, .ptp_cmd_packing = sja1105pqrs_ptp_cmd_packing, .clocking_setup = sja1105_clocking_setup, + .supports_mii = {true, true, true, true, true}, + .supports_rmii = {true, true, true, true, true}, + .supports_rgmii = {true, true, true, true, true}, + .supports_sgmii = {false, false, false, false, true}, .name = "SJA1105S", };