From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8303AEB64DD for ; Mon, 3 Jul 2023 03:51:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230032AbjGCDvG (ORCPT ); Sun, 2 Jul 2023 23:51:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36286 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229988AbjGCDvE (ORCPT ); Sun, 2 Jul 2023 23:51:04 -0400 Received: from gate2.alliedtelesis.co.nz (gate2.alliedtelesis.co.nz [202.36.163.20]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 30C5A1B6 for ; Sun, 2 Jul 2023 20:51:02 -0700 (PDT) Received: from svr-chch-seg1.atlnz.lc (mmarshal3.atlnz.lc [10.32.18.43]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by gate2.alliedtelesis.co.nz (Postfix) with ESMTPS id 0BAF62C049B; Mon, 3 Jul 2023 15:50:49 +1200 (NZST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alliedtelesis.co.nz; s=mail181024; t=1688356249; bh=+XmE3h4JR9jmL93Rq94bj5aEzeXvD+l2Bfqms27UMGE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kbYkkQmL4/7/Ze7FV7f9QCgt9/TGe6ZNLVYJV/+vri52xvcSbBqA/lo5/7lAy1uMj sVIQaiNcWagWfhc+K6gUCA9m1ot6m45WTOL80gJtHPGYXLWyThOaG4fPFJjIQW3Zu0 wsIOyD5rmvwxGU7tE9XshX0d38j/oG4QVZkJ/uODF/J4vPpiclEynvoU66tGLDgsf8 og/wiHf44i+KE+t/ILgMUDKBzDbYqlQVrXP7oGLhrJVLd/b1ioikFdrYbwpZvZ8rtU Yfk7DtB434bHr9r2oy7ZAHKlb9hwDCh8hPtTWcbSbj17IPV0QJq7h7Dgn5CZocLIuZ drwtFtTn/zx0Q== Received: from pat.atlnz.lc (Not Verified[10.32.16.33]) by svr-chch-seg1.atlnz.lc with Trustwave SEG (v8,2,6,11305) id ; Mon, 03 Jul 2023 15:50:48 +1200 Received: from chrisp-dl.ws.atlnz.lc (chrisp-dl.ws.atlnz.lc [10.33.22.30]) by pat.atlnz.lc (Postfix) with ESMTP id A436E13EE82; Mon, 3 Jul 2023 15:50:48 +1200 (NZST) Received: by chrisp-dl.ws.atlnz.lc (Postfix, from userid 1030) id A5931283B6B; Mon, 3 Jul 2023 15:50:48 +1200 (NZST) From: Chris Packham To: miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, gregory.clement@bootlin.com Cc: linux-mtd@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Chris Packham Subject: [PATCH v3 3/3] mtd: rawnand: marvell: add support for AC5 SoC Date: Mon, 3 Jul 2023 15:50:44 +1200 Message-ID: <20230703035044.2063303-4-chris.packham@alliedtelesis.co.nz> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230703035044.2063303-1-chris.packham@alliedtelesis.co.nz> References: <20230703035044.2063303-1-chris.packham@alliedtelesis.co.nz> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-SEG-SpamProfiler-Analysis: v=2.3 cv=NPqrBHyg c=1 sm=1 tr=0 a=KLBiSEs5mFS1a/PbTCJxuA==:117 a=ws7JD89P4LkA:10 a=FN2KoAgMzK-72ix3NDkA:9 X-SEG-SpamProfiler-Score: 0 x-atlnz-ls: pat Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add support for the AC5/AC5X SoC from Marvell. The NFC on this SoC only supports SDR modes up to 3. Marvell's SDK includes some predefined values for the ndtr registers. These haven't been incorporated as the existing code seems to get good values based on measurements taken with an oscilloscope. Signed-off-by: Chris Packham --- Notes: Changes in v3: - None Changes in v2: - None drivers/mtd/nand/raw/Kconfig | 2 +- drivers/mtd/nand/raw/marvell_nand.c | 16 ++++++++++++++++ 2 files changed, 17 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig index b523354dfb00..0f4cbb497010 100644 --- a/drivers/mtd/nand/raw/Kconfig +++ b/drivers/mtd/nand/raw/Kconfig @@ -160,7 +160,7 @@ config MTD_NAND_MARVELL including: - PXA3xx processors (NFCv1) - 32-bit Armada platforms (XP, 37x, 38x, 39x) (NFCv2) - - 64-bit Aramda platforms (7k, 8k) (NFCv2) + - 64-bit Aramda platforms (7k, 8k, ac5) (NFCv2) =20 config MTD_NAND_SLC_LPC32XX tristate "NXP LPC32xx SLC NAND controller" diff --git a/drivers/mtd/nand/raw/marvell_nand.c b/drivers/mtd/nand/raw/m= arvell_nand.c index 30c15e4e1cc0..b9a8dd324211 100644 --- a/drivers/mtd/nand/raw/marvell_nand.c +++ b/drivers/mtd/nand/raw/marvell_nand.c @@ -375,6 +375,7 @@ static inline struct marvell_nand_chip_sel *to_nand_s= el(struct marvell_nand_chip * BCH error detection and correction algorithm, * NDCB3 register has been added * @use_dma: Use dma for data transfers + * @max_mode_number: Maximum timing mode supported by the controller */ struct marvell_nfc_caps { unsigned int max_cs_nb; @@ -383,6 +384,7 @@ struct marvell_nfc_caps { bool legacy_of_bindings; bool is_nfcv2; bool use_dma; + unsigned int max_mode_number; }; =20 /** @@ -2376,6 +2378,9 @@ static int marvell_nfc_setup_interface(struct nand_= chip *chip, int chipnr, if (IS_ERR(sdr)) return PTR_ERR(sdr); =20 + if (nfc->caps->max_mode_number && nfc->caps->max_mode_number < conf->ti= mings.mode) + return -EOPNOTSUPP; + /* * SDR timings are given in pico-seconds while NFC timings must be * expressed in NAND controller clock cycles, which is half of the @@ -3073,6 +3078,13 @@ static const struct marvell_nfc_caps marvell_armad= a_8k_nfc_caps =3D { .is_nfcv2 =3D true, }; =20 +static const struct marvell_nfc_caps marvell_ac5_caps =3D { + .max_cs_nb =3D 2, + .max_rb_nb =3D 1, + .is_nfcv2 =3D true, + .max_mode_number =3D 3, +}; + static const struct marvell_nfc_caps marvell_armada370_nfc_caps =3D { .max_cs_nb =3D 4, .max_rb_nb =3D 2, @@ -3121,6 +3133,10 @@ static const struct of_device_id marvell_nfc_of_id= s[] =3D { .compatible =3D "marvell,armada-8k-nand-controller", .data =3D &marvell_armada_8k_nfc_caps, }, + { + .compatible =3D "marvell,ac5-nand-controller", + .data =3D &marvell_ac5_caps, + }, { .compatible =3D "marvell,armada370-nand-controller", .data =3D &marvell_armada370_nfc_caps, --=20 2.41.0