From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Fri, 12 Jun 2026 08:00:17 +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 1wXuwA-004xr4-1D for lore@lore.pengutronix.de; Fri, 12 Jun 2026 08:00:17 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1wXuw7-0005AD-Kp for lore@pengutronix.de; Fri, 12 Jun 2026 08:00:14 +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:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=uztYYGNDTekpneqbXeSjerVqFG4sMB805FoPzDtGtlU=; b=quLiWEwqOumydQrTgsP/CgxCdU Req0lxdOgt31K+Ha/Lki3F5S6VR9OBwAJcX2dRWp9zCpm4AxzvXFHvobc+1TcFgGDgKOKaFBK/Q73 ZhU/2fU/3pamgpke10sWvd/pgFS1kZA86UNbsHw7TlmBpV6O7VPiaXm0z+tTih60eh8lUIuCe3SWN lMs6gRIZ0IcXqP6YzLvDH1oXp8KLOAy6VsBE/5buiniPlUvNLUYHI/4tq4/ddcGQPO8mmOx0dQIaf CezOwxrx1HiFRE9Q3SkJ24hqWP1H6/a/Po1H2lfn6ukxv8EwNcvz2F8SEOnSCzSodXaHf5XNbCuLQ 0ZTnXh7g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wXuve-0000000AOTD-0s39; Fri, 12 Jun 2026 05:59:42 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wXuvZ-0000000AOPc-1uHC for barebox@lists.infradead.org; Fri, 12 Jun 2026 05:59:40 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1wXuvW-0004mZ-6r; Fri, 12 Jun 2026 07:59:34 +0200 Received: from dude04.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::ac] helo=dude04) 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 1wXuvW-002Kex-0Q; Fri, 12 Jun 2026 07:59:34 +0200 Received: from ore by dude04 with local (Exim 4.98.2) (envelope-from ) id 1wXuvW-00000002fQA-06t4; Fri, 12 Jun 2026 07:59:34 +0200 From: Oleksij Rempel To: barebox@lists.infradead.org Cc: Oleksij Rempel Date: Fri, 12 Jun 2026 07:59:22 +0200 Message-ID: <20260612055930.635833-6-o.rempel@pengutronix.de> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260612055930.635833-1-o.rempel@pengutronix.de> References: <20260612055930.635833-1-o.rempel@pengutronix.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260611_225937_524416_69AE3189 X-CRM114-Status: GOOD ( 17.42 ) 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=-4.9 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_PASS autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH v1 06/10] mci: atmel-sdhci: add Microchip LAN9691 / LAN969X SDHCI support 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) Match the "microchip,lan9691-sdhci" compatible and allow building on ARCH_MICROCHIP (and COMPILE_TEST). LAN969X uses a different GCK rate (100 MHz) than the AT91 SAMA5D2 (240 MHz), so plumb the per-compatible rate through device_get_match_data() and fall back to the SAMA5D2 rate when no match data is supplied. The LAN969X SDHCI binding doesn't expose the PMC base clock that sama5d2/sam9x60 carry as "baseclk" (the GCK driver handles the upstream source internally), so make that lookup optional. Signed-off-by: Oleksij Rempel --- drivers/mci/Kconfig | 6 +++--- drivers/mci/atmel-sdhci.c | 22 ++++++++++++++++++---- 2 files changed, 21 insertions(+), 7 deletions(-) diff --git a/drivers/mci/Kconfig b/drivers/mci/Kconfig index b38f7a3bdf8b..8108c7b14848 100644 --- a/drivers/mci/Kconfig +++ b/drivers/mci/Kconfig @@ -197,12 +197,12 @@ config MCI_ATMEL Atmel AT91. config MCI_ATMEL_SDHCI - bool "ATMEL SDHCI (sama5d2)" + bool "ATMEL SDHCI (sama5d2, lan9691)" select MCI_SDHCI - depends on ARCH_AT91 + depends on ARCH_AT91 || ARCH_MICROCHIP || COMPILE_TEST help Enable this entry to add support to read and write SD cards on an - Atmel sama5d2 + Atmel sama5d2 or Microchip LAN969X. config MCI_MMCI bool "ARM PL180 MMCI" diff --git a/drivers/mci/atmel-sdhci.c b/drivers/mci/atmel-sdhci.c index 462cf21bc25f..458d022fa3fa 100644 --- a/drivers/mci/atmel-sdhci.c +++ b/drivers/mci/atmel-sdhci.c @@ -18,6 +18,7 @@ #define ATMEL_SDHC_MIN_FREQ 400000 #define ATMEL_SDHC_GCK_RATE 240000000 +#define LAN969X_GCK_RATE 100000000 struct at91_sdhci_priv { struct at91_sdhci host; @@ -55,7 +56,8 @@ static int at91_sdhci_mci_init(struct mci_host *mci, struct device *dev) priv->mci.non_removable, priv->cal_always_on); } -static int at91_sdhci_conf_clks(struct at91_sdhci_priv *priv) +static int at91_sdhci_conf_clks(struct at91_sdhci_priv *priv, + unsigned long gck_rate) { unsigned long real_gck_rate; int ret; @@ -66,7 +68,7 @@ static int at91_sdhci_conf_clks(struct at91_sdhci_priv *priv) * base clock rate and the clock mult from capabilities. */ clk_enable(priv->hclock); - ret = clk_set_rate(priv->gck, ATMEL_SDHC_GCK_RATE); + ret = clk_set_rate(priv->gck, gck_rate); if (ret < 0) { clk_disable(priv->hclock); return ret; @@ -109,6 +111,11 @@ static int at91_sdhci_probe(struct device *dev) { struct at91_sdhci_priv *priv; struct resource *iores; + unsigned long gck_rate; + + gck_rate = (uintptr_t)device_get_match_data(dev); + if (!gck_rate) + gck_rate = ATMEL_SDHC_GCK_RATE; priv = xzalloc(sizeof(*priv)); dev->priv = priv; @@ -119,7 +126,12 @@ static int at91_sdhci_probe(struct device *dev) return PTR_ERR(iores); } - priv->mainck = clk_get(dev, "baseclk"); + /* + * "baseclk" is the PMC base clock on sama5d2/sam9x60. The LAN969X + * SDHCI binding doesn't expose it (the GCK driver handles the upstream + * source internally), so treat it as optional. + */ + priv->mainck = clk_get_optional(dev, "baseclk"); if (IS_ERR(priv->mainck)) { dev_err(dev, "failed to get baseclk\n"); return PTR_ERR(priv->mainck); @@ -147,7 +159,7 @@ static int at91_sdhci_probe(struct device *dev) at91_sdhci_mmio_init(&priv->host, IOMEM(iores->start)); priv->host.sdhci.mci = &priv->mci; - priv->gck_rate = at91_sdhci_conf_clks(priv); + priv->gck_rate = at91_sdhci_conf_clks(priv, gck_rate); if (priv->gck_rate < 0) return priv->gck_rate; @@ -164,6 +176,8 @@ static int at91_sdhci_probe(struct device *dev) static const struct of_device_id at91_sdhci_dt_match[] = { { .compatible = "atmel,sama5d2-sdhci" }, { .compatible = "microchip,sam9x60-sdhci" }, + { .compatible = "microchip,lan9691-sdhci", + .data = (void *)LAN969X_GCK_RATE }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, at91_sdhci_dt_match); -- 2.47.3