From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Thu, 05 Jun 2025 15:13:46 +0200 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1uNAPi-0041PN-1S for lore@lore.pengutronix.de; Thu, 05 Jun 2025 15:13:46 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1uNAPf-00018U-KE for lore@pengutronix.de; Thu, 05 Jun 2025 15:13:46 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:To:In-Reply-To:References: Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Cc:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=6e+k3N27NPsc36A6e0oRMDTYhiKZhWsKwqvq7cxR/y0=; b=IHv7mVulH3o4oWrsEuJpR2Zf2x M/ymxUgn9p6stKdPo0rwxe4uU897fWTBxdfGm+yXSNbahjGv7DNwL6Aor2dXH6cZimctxaN+a93nK 9ID8Q8ACQ8NCYX2+479nMwNYpH9b4ieueJjjXq7G82YKMzPERxDUNGwRQzu+LZqLEp5zpi2npHmx+ OHKdmizd7Hvg71iqb4iCUJrTiOodPCWoZ/ZKHrda0J7lthJTslTb0UNA6oEfkcmjdCApmDhtytl+y rQFxEyXuu/in2GnHXDXrVXzoqIqFS4MxgRORELsfYdXWwkxRocv1lW9u20MBuWHzWCNMHrTx5aWeE QOa0B3VA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uNAP1-0000000FZLp-02L7; Thu, 05 Jun 2025 13:13:03 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uNAFF-0000000FXqy-0ZN4 for barebox@lists.infradead.org; Thu, 05 Jun 2025 13:03:01 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1uNAFE-00012s-04; Thu, 05 Jun 2025 15:02:56 +0200 Received: from dude02.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::28]) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1uNAFD-001xjk-2b; Thu, 05 Jun 2025 15:02:55 +0200 Received: from localhost ([::1] helo=dude02.red.stw.pengutronix.de) by dude02.red.stw.pengutronix.de with esmtp (Exim 4.96) (envelope-from ) id 1uN9vS-0024bQ-1m; Thu, 05 Jun 2025 14:42:30 +0200 From: Sascha Hauer Date: Thu, 05 Jun 2025 14:42:47 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250605-arm-k3-am62l-v2-22-53257d4b2dd2@pengutronix.de> References: <20250605-arm-k3-am62l-v2-0-53257d4b2dd2@pengutronix.de> In-Reply-To: <20250605-arm-k3-am62l-v2-0-53257d4b2dd2@pengutronix.de> To: BAREBOX X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1749127350; l=1226; i=s.hauer@pengutronix.de; s=20230412; h=from:subject:message-id; bh=FskQnmONF7HCyfLVr0UUUgyPW6hY/BKK8R1wuNfR0t4=; b=5j8KIMdlWFU1OnvNJcZ5Xk5rdE89ehFXTUcMJbeRsC/psBg+/Tbm4aZmnufG9VhdAOX0te5i6 DQn21zawuejCZ2gDw9prQix65/MPy2yBQzJviUlNY4IaoaItybBEmet X-Developer-Key: i=s.hauer@pengutronix.de; a=ed25519; pk=4kuc9ocmECiBJKWxYgqyhtZOHj5AWi7+d0n/UjhkwTg= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250605_060257_218124_731F339E X-CRM114-Status: GOOD ( 11.08 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.3 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH v2 22/33] net: davinci_mdio: Use fallback clock rate X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) On AM62L There is a clock attached to the mdio block, but the TF-A returns 0 for its rate. Use 256MHz as fallback rate when we don't find a valid clock rate. Signed-off-by: Sascha Hauer --- drivers/net/davinci_mdio.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/net/davinci_mdio.c b/drivers/net/davinci_mdio.c index 1186642e1337b603f541f6bdf19ac2d2792f4994..ca7cecd2c08488cfa7a12d9cf8947e27722b916c 100644 --- a/drivers/net/davinci_mdio.c +++ b/drivers/net/davinci_mdio.c @@ -112,17 +112,18 @@ static int cpsw_mdio_write(struct mii_bus *bus, int phy_id, int phy_reg, u16 val static void cpsw_mdio_init_clk(struct cpsw_mdio_priv *priv) { - u32 mdio_in, clk_div; + u32 mdio_in = 0, clk_div; u32 bus_freq = 1000000; of_property_read_u32(priv->dev->of_node, "bus_freq", &bus_freq); priv->clk = clk_get_enabled(priv->dev, "fck"); - if (IS_ERR(priv->clk)) - mdio_in = 256000000; - else + if (!IS_ERR(priv->clk)) mdio_in = clk_get_rate(priv->clk); + if (mdio_in == 0) + mdio_in = 256000000; + clk_div = (mdio_in / bus_freq) - 1; if (clk_div > CONTROL_MAX_DIV) clk_div = CONTROL_MAX_DIV; -- 2.39.5